cinelerra-5.1/cinelerra/ffmpeg.C

   1
   2 #include <stdio.h>
   3 #include <stdint.h>
   4 #include <stdlib.h>
   5 #include <unistd.h>
   6 #include <string.h>
   7 #include <stdarg.h>
   8 #include <fcntl.h>
   9 #include <limits.h>
  10 #include <ctype.h>
  11
  12 // work arounds (centos)
  13 #include <lzma.h>
  14 #ifndef INT64_MAX
  15 #define INT64_MAX 9223372036854775807LL
  16 #endif
  17 #define MAX_RETRY 1000
  18 // max pts/curr_pos drift allowed before correction (in seconds)
  19 #define AUDIO_PTS_TOLERANCE 0.04
  20
  21 #include "asset.h"
  22 #include "bccmodels.h"
  23 #include "bchash.h"
  24 #include "edl.h"
  25 #include "edlsession.h"
  26 #include "file.h"
  27 #include "fileffmpeg.h"
  28 #include "filesystem.h"
  29 #include "ffmpeg.h"
  30 #include "indexfile.h"
  31 #include "interlacemodes.h"
  32 #include "libdv.h"
  33 #include "libmjpeg.h"
  34 #include "mainerror.h"
  35 #include "mwindow.h"
  36 #include "preferences.h"
  37 #include "vframe.h"
  38
  39 #ifdef FFMPEG3
  40 #define url filename
  41 #else
  42 #define av_register_all(s)
  43 #define avfilter_register_all(s)
  44 #endif
  45
  46 #define VIDEO_INBUF_SIZE 0x10000
  47 #define AUDIO_INBUF_SIZE 0x10000
  48 #define VIDEO_REFILL_THRESH 0
  49 #define AUDIO_REFILL_THRESH 0x1000
  50 #define AUDIO_MIN_FRAME_SZ 128
  51
  52 #define FF_ESTM_TIMES 0x0001
  53 #define FF_BAD_TIMES  0x0002
  54
  55 Mutex FFMPEG::fflock("FFMPEG::fflock");
  56
  57 static void ff_err(int ret, const char *fmt, ...)
  58 {
  59         char msg[BCTEXTLEN];
  60         va_list ap;
  61         va_start(ap, fmt);
  62         vsnprintf(msg, sizeof(msg), fmt, ap);
  63         va_end(ap);
  64         char errmsg[BCSTRLEN];
  65         av_strerror(ret, errmsg, sizeof(errmsg));
  66         fprintf(stderr,_("%s  err: %s\n"),msg, errmsg);
  67 }
  68
  69 void FFPacket::init()
  70 {
  71         av_init_packet(&pkt);
  72         pkt.data = 0; pkt.size = 0;
  73 }
  74 void FFPacket::finit()
  75 {
  76         av_packet_unref(&pkt);
  77 }
  78
  79 FFrame::FFrame(FFStream *fst)
  80 {
  81         this->fst = fst;
  82         frm = av_frame_alloc();
  83         init = fst->init_frame(frm);
  84 }
  85
  86 FFrame::~FFrame()
  87 {
  88         av_frame_free(&frm);
  89 }
  90
  91 void FFrame::queue(int64_t pos)
  92 {
  93         position = pos;
  94         fst->queue(this);
  95 }
  96
  97 void FFrame::dequeue()
  98 {
  99         fst->dequeue(this);
 100 }
 101
 102 void FFrame::set_hw_frame(AVFrame *frame)
 103 {
 104         av_frame_free(&frm);
 105         frm = frame;
 106 }
 107
 108 int FFAudioStream::read(float *fp, long len)
 109 {
 110         long n = len * nch;
 111         float *op = outp;
 112         while( n > 0 ) {
 113                 int k = lmt - op;
 114                 if( k > n ) k = n;
 115                 n -= k;
 116                 while( --k >= 0 ) *fp++ = *op++;
 117                 if( op >= lmt ) op = bfr;
 118         }
 119         return len;
 120 }
 121
 122 void FFAudioStream::realloc(long nsz, int nch, long len)
 123 {
 124         long bsz = nsz * nch;
 125         float *np = new float[bsz];
 126         inp = np + read(np, len) * nch;
 127         outp = np;
 128         lmt = np + bsz;
 129         this->nch = nch;
 130         sz = nsz;
 131         delete [] bfr;  bfr = np;
 132 }
 133
 134 void FFAudioStream::realloc(long nsz, int nch)
 135 {
 136         if( nsz > sz || this->nch != nch ) {
 137                 long len = this->nch != nch ? 0 : hpos;
 138                 if( len > sz ) len = sz;
 139                 iseek(len);
 140                 realloc(nsz, nch, len);
 141         }
 142 }
 143
 144 void FFAudioStream::reserve(long nsz, int nch)
 145 {
 146         long len = (inp - outp) / nch;
 147         nsz += len;
 148         if( nsz > sz || this->nch != nch ) {
 149                 if( this->nch != nch ) len = 0;
 150                 realloc(nsz, nch, len);
 151                 return;
 152         }
 153         if( (len*=nch) > 0 && bfr != outp )
 154                 memmove(bfr, outp, len*sizeof(*bfr));
 155         outp = bfr;
 156         inp = bfr + len;
 157 }
 158
 159 long FFAudioStream::used()
 160 {
 161         long len = inp>=outp ? inp-outp : inp-bfr + lmt-outp;
 162         return len / nch;
 163 }
 164 long FFAudioStream::avail()
 165 {
 166         float *in1 = inp+1;
 167         if( in1 >= lmt ) in1 = bfr;
 168         long len = outp >= in1 ? outp-in1 : outp-bfr + lmt-in1;
 169         return len / nch;
 170 }
 171 void FFAudioStream::reset_history()
 172 {
 173         inp = outp = bfr;
 174         hpos = 0;
 175         memset(bfr, 0, lmt-bfr);
 176 }
 177
 178 void FFAudioStream::iseek(int64_t ofs)
 179 {
 180         if( ofs > hpos ) ofs = hpos;
 181         if( ofs > sz ) ofs = sz;
 182         outp = inp - ofs*nch;
 183         if( outp < bfr ) outp += sz*nch;
 184 }
 185
 186 float *FFAudioStream::get_outp(int ofs)
 187 {
 188         float *ret = outp;
 189         outp += ofs*nch;
 190         return ret;
 191 }
 192
 193 int64_t FFAudioStream::put_inp(int ofs)
 194 {
 195         inp += ofs*nch;
 196         return (inp-outp) / nch;
 197 }
 198
 199 int FFAudioStream::write(const float *fp, long len)
 200 {
 201         long n = len * nch;
 202         float *ip = inp;
 203         while( n > 0 ) {
 204                 int k = lmt - ip;
 205                 if( k > n ) k = n;
 206                 n -= k;
 207                 while( --k >= 0 ) *ip++ = *fp++;
 208                 if( ip >= lmt ) ip = bfr;
 209         }
 210         inp = ip;
 211         hpos += len;
 212         return len;
 213 }
 214
 215 int FFAudioStream::zero(long len)
 216 {
 217         long n = len * nch;
 218         float *ip = inp;
 219         while( n > 0 ) {
 220                 int k = lmt - ip;
 221                 if( k > n ) k = n;
 222                 n -= k;
 223                 while( --k >= 0 ) *ip++ = 0;
 224                 if( ip >= lmt ) ip = bfr;
 225         }
 226         inp = ip;
 227         hpos += len;
 228         return len;
 229 }
 230
 231 // does not advance outp
 232 int FFAudioStream::read(double *dp, long len, int ch)
 233 {
 234         long n = len;
 235         float *op = outp + ch;
 236         float *lmt1 = lmt + nch-1;
 237         while( n > 0 ) {
 238                 int k = (lmt1 - op) / nch;
 239                 if( k > n ) k = n;
 240                 n -= k;
 241                 while( --k >= 0 ) { *dp++ = *op;  op += nch; }
 242                 if( op >= lmt ) op -= sz*nch;
 243         }
 244         return len;
 245 }
 246
 247 // load linear buffer, no wrapping allowed, does not advance inp
 248 int FFAudioStream::write(const double *dp, long len, int ch)
 249 {
 250         long n = len;
 251         float *ip = inp + ch;
 252         while( --n >= 0 ) { *ip = *dp++;  ip += nch; }
 253         return len;
 254 }
 255
 256
 257 FFStream::FFStream(FFMPEG *ffmpeg, AVStream *st, int fidx)
 258 {
 259         this->ffmpeg = ffmpeg;
 260         this->st = st;
 261         this->fidx = fidx;
 262         frm_lock = new Mutex("FFStream::frm_lock");
 263         fmt_ctx = 0;
 264         avctx = 0;
 265         filter_graph = 0;
 266         buffersrc_ctx = 0;
 267         buffersink_ctx = 0;
 268         frm_count = 0;
 269         nudge = AV_NOPTS_VALUE;
 270         seek_pos = curr_pos = 0;
 271         seeked = 1;  eof = 0;
 272         reading = writing = 0;
 273         hw_pixfmt = AV_PIX_FMT_NONE;
 274         hw_device_ctx = 0;
 275         flushed = 0;
 276         need_packet = 1;
 277         frame = fframe = 0;
 278         probe_frame = 0;
 279         bsfc = 0;
 280         stats_fp = 0;
 281         stats_filename = 0;
 282         stats_in = 0;
 283         pass = 0;
 284 }
 285
 286 FFStream::~FFStream()
 287 {
 288         frm_lock->lock("FFStream::~FFStream");
 289         if( reading > 0 || writing > 0 ) avcodec_close(avctx);
 290         if( avctx ) avcodec_free_context(&avctx);
 291         if( fmt_ctx ) avformat_close_input(&fmt_ctx);
 292         if( hw_device_ctx ) av_buffer_unref(&hw_device_ctx);
 293         if( bsfc ) av_bsf_free(&bsfc);
 294         while( frms.first ) frms.remove(frms.first);
 295         if( filter_graph ) avfilter_graph_free(&filter_graph);
 296         if( frame ) av_frame_free(&frame);
 297         if( fframe ) av_frame_free(&fframe);
 298         if( probe_frame ) av_frame_free(&probe_frame);
 299         frm_lock->unlock();
 300         delete frm_lock;
 301         if( stats_fp ) fclose(stats_fp);
 302         if( stats_in ) av_freep(&stats_in);
 303         delete [] stats_filename;
 304 }
 305
 306 void FFStream::ff_lock(const char *cp)
 307 {
 308         FFMPEG::fflock.lock(cp);
 309 }
 310
 311 void FFStream::ff_unlock()
 312 {
 313         FFMPEG::fflock.unlock();
 314 }
 315
 316 void FFStream::queue(FFrame *frm)
 317 {
 318         frm_lock->lock("FFStream::queue");
 319         frms.append(frm);
 320         ++frm_count;
 321         frm_lock->unlock();
 322         ffmpeg->mux_lock->unlock();
 323 }
 324
 325 void FFStream::dequeue(FFrame *frm)
 326 {
 327         frm_lock->lock("FFStream::dequeue");
 328         --frm_count;
 329         frms.remove_pointer(frm);
 330         frm_lock->unlock();
 331 }
 332
 333 int FFStream::encode_activate()
 334 {
 335         if( writing < 0 )
 336                 writing = ffmpeg->encode_activate();
 337         return writing;
 338 }
 339
 340 // this is a global parameter that really should be in the context
 341 static AVPixelFormat hw_pix_fmt = AV_PIX_FMT_NONE; // protected by ff_lock
 342
 343 // goofy maneuver to attach a hw_format to an av_context
 344 #define GET_HW_PIXFMT(fn, fmt) \
 345 static AVPixelFormat get_hw_##fn(AVCodecContext *ctx, const enum AVPixelFormat *pix_fmts) { \
 346         return fmt; \
 347 }
 348 GET_HW_PIXFMT(vaapi, AV_PIX_FMT_VAAPI)
 349 GET_HW_PIXFMT(vdpau, AV_PIX_FMT_VDPAU)
 350 GET_HW_PIXFMT(cuda,  AV_PIX_FMT_CUDA)
 351 GET_HW_PIXFMT(nv12,  AV_PIX_FMT_NV12)
 352
 353 static enum AVPixelFormat get_hw_format(AVCodecContext *ctx,
 354                         const enum AVPixelFormat *pix_fmts)
 355 {
 356         for( const enum AVPixelFormat *p=pix_fmts; *p!=AV_PIX_FMT_NONE; ++p ) {
 357                 if( *p != hw_pix_fmt ) continue;
 358                 switch( *p ) {
 359                 case AV_PIX_FMT_VAAPI: ctx->get_format = get_hw_vaapi; return *p;
 360                 case AV_PIX_FMT_VDPAU: ctx->get_format = get_hw_vdpau; return *p;
 361                 case AV_PIX_FMT_CUDA:  ctx->get_format = get_hw_cuda;  return *p;
 362                 case AV_PIX_FMT_NV12:  ctx->get_format = get_hw_nv12;  return *p;
 363                 default:
 364                         fprintf(stderr, "Unknown HW surface format: %s\n",
 365                                 av_get_pix_fmt_name(*p));
 366                         continue;
 367                 }
 368         }
 369         fprintf(stderr, "Failed to get HW surface format.\n");
 370         return hw_pix_fmt = AV_PIX_FMT_NONE;
 371 }
 372
 373
 374 AVHWDeviceType FFStream::decode_hw_activate()
 375 {
 376         return AV_HWDEVICE_TYPE_NONE;
 377 }
 378
 379 int FFStream::decode_hw_format(AVCodec *decoder, AVHWDeviceType type)
 380 {
 381         return 0;
 382 }
 383
 384 int FFStream::decode_activate()
 385 {
 386         if( reading < 0 && (reading=ffmpeg->decode_activate()) > 0 ) {
 387                 ff_lock("FFStream::decode_activate");
 388                 reading = 0;
 389                 AVDictionary *copts = 0;
 390                 av_dict_copy(&copts, ffmpeg->opts, 0);
 391                 int ret = 0;
 392                 AVHWDeviceType hw_type = decode_hw_activate();
 393
 394                 // this should be avformat_copy_context(), but no copy avail
 395                 ret = avformat_open_input(&fmt_ctx,
 396                         ffmpeg->fmt_ctx->url, ffmpeg->fmt_ctx->iformat, &copts);
 397                 if( ret >= 0 ) {
 398                         ret = avformat_find_stream_info(fmt_ctx, 0);
 399                         st = fmt_ctx->streams[fidx];
 400                         load_markers();
 401                 }
 402                 while( ret >= 0 && st != 0 && !reading ) {
 403                         AVCodecID codec_id = st->codecpar->codec_id;
 404                         AVCodec *decoder = 0;
 405                         if( is_video() ) {
 406                                 if( ffmpeg->opt_video_decoder )
 407                                         decoder = avcodec_find_decoder_by_name(ffmpeg->opt_video_decoder);
 408                                 else
 409                                         ffmpeg->video_codec_remaps.update(codec_id, decoder);
 410                         }
 411                         else if( is_audio() ) {
 412                                 if( ffmpeg->opt_audio_decoder )
 413                                         decoder = avcodec_find_decoder_by_name(ffmpeg->opt_audio_decoder);
 414                                 else
 415                                         ffmpeg->audio_codec_remaps.update(codec_id, decoder);
 416                         }
 417                         if( !decoder )
 418                                 decoder = avcodec_find_decoder(codec_id);
 419                         avctx = avcodec_alloc_context3(decoder);
 420                         if( !avctx ) {
 421                                 eprintf(_("cant allocate codec context\n"));
 422                                 ret = AVERROR(ENOMEM);
 423                         }
 424                         if( ret >= 0 && hw_type != AV_HWDEVICE_TYPE_NONE ) {
 425                                 ret = decode_hw_format(decoder, hw_type);
 426                         }
 427                         if( ret >= 0 ) {
 428                                 avcodec_parameters_to_context(avctx, st->codecpar);
 429                                 if( !av_dict_get(copts, "threads", NULL, 0) )
 430                                         avctx->thread_count = ffmpeg->ff_cpus();
 431                                 ret = avcodec_open2(avctx, decoder, &copts);
 432                         }
 433                         AVFrame *hw_frame = 0;
 434                         if( ret >= 0 && hw_type != AV_HWDEVICE_TYPE_NONE ) {
 435                                 if( !(hw_frame=av_frame_alloc()) ) {
 436                                         fprintf(stderr, "FFStream::decode_activate: av_frame_alloc failed\n");
 437                                         ret = AVERROR(ENOMEM);
 438                                 }
 439                                 if( ret >= 0 )
 440                                         ret = decode(hw_frame);
 441                         }
 442                         if( ret < 0 && hw_type != AV_HWDEVICE_TYPE_NONE ) {
 443                                 ff_err(ret, "HW device init failed, using SW decode.\nfile:%s\n",
 444                                         ffmpeg->fmt_ctx->url);
 445                                 avcodec_close(avctx);
 446                                 avcodec_free_context(&avctx);
 447                                 av_buffer_unref(&hw_device_ctx);
 448                                 hw_device_ctx = 0;
 449                                 av_frame_free(&hw_frame);
 450                                 hw_type = AV_HWDEVICE_TYPE_NONE;
 451                                 int flags = AVSEEK_FLAG_BACKWARD | AVSEEK_FLAG_ANY;
 452                                 int idx = st->index;
 453                                 av_seek_frame(fmt_ctx, idx, 0, flags);
 454                                 need_packet = 1;  flushed = 0;
 455                                 seeked = 1;  st_eof(0);
 456                                 ret = 0;
 457                                 continue;
 458                         }
 459                         probe_frame = hw_frame;
 460                         if( ret >= 0 )
 461                                 reading = 1;
 462                         else
 463                                 eprintf(_("open decoder failed\n"));
 464                 }
 465                 if( ret < 0 )
 466                         eprintf(_("can't open input file: %s\n"), ffmpeg->fmt_ctx->url);
 467                 av_dict_free(&copts);
 468                 ff_unlock();
 469         }
 470         return reading;
 471 }
 472
 473 int FFStream::read_packet()
 474 {
 475         av_packet_unref(ipkt);
 476         int ret = av_read_frame(fmt_ctx, ipkt);
 477         if( ret < 0 ) {
 478                 st_eof(1);
 479                 if( ret == AVERROR_EOF ) return 0;
 480                 ff_err(ret, "FFStream::read_packet: av_read_frame failed\n");
 481                 flushed = 1;
 482                 return -1;
 483         }
 484         return 1;
 485 }
 486
 487 int FFStream::decode(AVFrame *frame)
 488 {
 489         if( probe_frame ) { // hw probe reads first frame
 490                 av_frame_ref(frame, probe_frame);
 491                 av_frame_free(&probe_frame);
 492                 return 1;
 493         }
 494         int ret = 0;
 495         int retries = MAX_RETRY;
 496         frm_lock->lock("FFStream::decode");
 497         while( ret >= 0 && !flushed && --retries >= 0 ) {
 498                 if( need_packet ) {
 499                         if( (ret=read_packet()) < 0 ) break;
 500                         AVPacket *pkt = ret > 0 ? (AVPacket*)ipkt : 0;
 501                         if( pkt ) {
 502                                 if( pkt->stream_index != st->index ) continue;
 503                                 if( !pkt->data || !pkt->size ) continue;
 504                         }
 505                         if( (ret=avcodec_send_packet(avctx, pkt)) < 0 ) {
 506                                 ff_err(ret, "FFStream::decode: avcodec_send_packet failed.\nfile:%s\n",
 507                                                 ffmpeg->fmt_ctx->url);
 508                                 break;
 509                         }
 510                         need_packet = 0;
 511                         retries = MAX_RETRY;
 512                 }
 513                 if( (ret=decode_frame(frame)) > 0 ) break;
 514                 if( !ret ) {
 515                         need_packet = 1;
 516                         flushed = st_eof();
 517                 }
 518         }
 519         frm_lock->unlock();
 520
 521         if( retries < 0 ) {
 522                 fprintf(stderr, "FFStream::decode: Retry limit\n");
 523                 ret = 0;
 524         }
 525         if( ret < 0 )
 526                 fprintf(stderr, "FFStream::decode: failed\n");
 527         return ret;
 528 }
 529
 530 int FFStream::load_filter(AVFrame *frame)
 531 {
 532         int ret = av_buffersrc_add_frame_flags(buffersrc_ctx, frame, 0);
 533         if( ret < 0 )
 534                 eprintf(_("av_buffersrc_add_frame_flags failed\n"));
 535         return ret;
 536 }
 537
 538 int FFStream::read_filter(AVFrame *frame)
 539 {
 540         int ret = av_buffersink_get_frame(buffersink_ctx, frame);
 541         if( ret < 0 ) {
 542                 if( ret == AVERROR(EAGAIN) ) return 0;
 543                 if( ret == AVERROR_EOF ) { st_eof(1); return -1; }
 544                 ff_err(ret, "FFStream::read_filter: av_buffersink_get_frame failed\n");
 545                 return ret;
 546         }
 547         return 1;
 548 }
 549
 550 int FFStream::read_frame(AVFrame *frame)
 551 {
 552         av_frame_unref(frame);
 553         if( !filter_graph || !buffersrc_ctx || !buffersink_ctx )
 554                 return decode(frame);
 555         if( !fframe && !(fframe=av_frame_alloc()) ) {
 556                 fprintf(stderr, "FFStream::read_frame: av_frame_alloc failed\n");
 557                 return -1;
 558         }
 559         int ret = -1;
 560         while( !flushed && !(ret=read_filter(frame)) ) {
 561                 if( (ret=decode(fframe)) < 0 ) break;
 562                 if( ret > 0 && (ret=load_filter(fframe)) < 0 ) break;
 563         }
 564         return ret;
 565 }
 566
 567 int FFStream::write_packet(FFPacket &pkt)
 568 {
 569         int ret = 0;
 570         if( !bsfc ) {
 571                 av_packet_rescale_ts(pkt, avctx->time_base, st->time_base);
 572                 pkt->stream_index = st->index;
 573                 ret = av_interleaved_write_frame(ffmpeg->fmt_ctx, pkt);
 574         }
 575         else {
 576                 ret = av_bsf_send_packet(bsfc, pkt);
 577                 while( ret >= 0 ) {
 578                         FFPacket bs;
 579                         if( (ret=av_bsf_receive_packet(bsfc, bs)) < 0 ) {
 580                                 if( ret == AVERROR(EAGAIN) ) return 0;
 581                                 if( ret == AVERROR_EOF ) return -1;
 582                                 break;
 583                         }
 584                         av_packet_rescale_ts(bs, avctx->time_base, st->time_base);
 585                         bs->stream_index = st->index;
 586                         ret = av_interleaved_write_frame(ffmpeg->fmt_ctx, bs);
 587                 }
 588         }
 589         if( ret < 0 )
 590                 ff_err(ret, "FFStream::write_packet: write packet failed.\nfile:%s\n",
 591                                 ffmpeg->fmt_ctx->url);
 592         return ret;
 593 }
 594
 595 int FFStream::encode_frame(AVFrame *frame)
 596 {
 597         int pkts = 0, ret = 0;
 598         for( int retry=MAX_RETRY; --retry>=0; ) {
 599                 if( frame || !pkts )
 600                         ret = avcodec_send_frame(avctx, frame);
 601                 if( !ret && frame ) return pkts;
 602                 if( ret < 0 && ret != AVERROR(EAGAIN) ) break;
 603                 FFPacket opkt;
 604                 ret = avcodec_receive_packet(avctx, opkt);
 605                 if( !frame && ret == AVERROR_EOF ) return pkts;
 606                 if( ret < 0 ) break;
 607                 ret = write_packet(opkt);
 608                 if( ret < 0 ) break;
 609                 ++pkts;
 610                 if( frame && stats_fp ) {
 611                         ret = write_stats_file();
 612                         if( ret < 0 ) break;
 613                 }
 614         }
 615         ff_err(ret, "FFStream::encode_frame: encode failed.\nfile: %s\n",
 616                                 ffmpeg->fmt_ctx->url);
 617         return -1;
 618 }
 619
 620 int FFStream::flush()
 621 {
 622         if( writing < 0 )
 623                 return -1;
 624         int ret = encode_frame(0);
 625         if( ret >= 0 && stats_fp ) {
 626                 ret = write_stats_file();
 627                 close_stats_file();
 628         }
 629         if( ret < 0 )
 630                 ff_err(ret, "FFStream::flush failed\n:file:%s\n",
 631                                 ffmpeg->fmt_ctx->url);
 632         return ret >= 0 ? 0 : 1;
 633 }
 634
 635
 636 int FFStream::open_stats_file()
 637 {
 638         stats_fp = fopen(stats_filename,"w");
 639         return stats_fp ? 0 : AVERROR(errno);
 640 }
 641
 642 int FFStream::close_stats_file()
 643 {
 644         if( stats_fp ) {
 645                 fclose(stats_fp);  stats_fp = 0;
 646         }
 647         return 0;
 648 }
 649
 650 int FFStream::read_stats_file()
 651 {
 652         int64_t len = 0;  struct stat stats_st;
 653         int fd = open(stats_filename, O_RDONLY);
 654         int ret = fd >= 0 ? 0: ENOENT;
 655         if( !ret && fstat(fd, &stats_st) )
 656                 ret = EINVAL;
 657         if( !ret ) {
 658                 len = stats_st.st_size;
 659                 stats_in = (char *)av_malloc(len+1);
 660                 if( !stats_in )
 661                         ret = ENOMEM;
 662         }
 663         if( !ret && read(fd, stats_in, len+1) != len )
 664                 ret = EIO;
 665         if( !ret ) {
 666                 stats_in[len] = 0;
 667                 avctx->stats_in = stats_in;
 668         }
 669         if( fd >= 0 )
 670                 close(fd);
 671         return !ret ? 0 : AVERROR(ret);
 672 }
 673
 674 int FFStream::write_stats_file()
 675 {
 676         int ret = 0;
 677         if( avctx->stats_out && (ret=strlen(avctx->stats_out)) > 0 ) {
 678                 int len = fwrite(avctx->stats_out, 1, ret, stats_fp);
 679                 if( ret != len )
 680                         ff_err(ret = AVERROR(errno), "FFStream::write_stats_file.\n%file:%s\n",
 681                                 ffmpeg->fmt_ctx->url);
 682         }
 683         return ret;
 684 }
 685
 686 int FFStream::init_stats_file()
 687 {
 688         int ret = 0;
 689         if( (pass & 2) && (ret = read_stats_file()) < 0 )
 690                 ff_err(ret, "stat file read: %s", stats_filename);
 691         if( (pass & 1) && (ret=open_stats_file()) < 0 )
 692                 ff_err(ret, "stat file open: %s", stats_filename);
 693         return ret >= 0 ? 0 : ret;
 694 }
 695
 696 int FFStream::seek(int64_t no, double rate)
 697 {
 698 // default ffmpeg native seek
 699         int npkts = 1;
 700         int64_t pos = no, pkt_pos = -1;
 701         IndexMarks *index_markers = get_markers();
 702         if( index_markers && index_markers->size() > 1 ) {
 703                 IndexMarks &marks = *index_markers;
 704                 int i = marks.find(pos);
 705                 int64_t n = i < 0 ? (i=0) : marks[i].no;
 706 // if indexed seek point not too far away (<30 secs), use index
 707                 if( no-n < 30*rate ) {
 708                         if( n < 0 ) n = 0;
 709                         pos = n;
 710                         if( i < marks.size() ) pkt_pos = marks[i].pos;
 711                         npkts = MAX_RETRY;
 712                 }
 713         }
 714         if( pos == curr_pos ) return 0;
 715         double secs = pos < 0 ? 0. : pos / rate;
 716         AVRational time_base = st->time_base;
 717         int64_t tstmp = time_base.num > 0 ? secs * time_base.den/time_base.num : 0;
 718         if( !tstmp ) {
 719                 if( st->nb_index_entries > 0 ) tstmp = st->index_entries[0].timestamp;
 720                 else if( st->start_time != AV_NOPTS_VALUE ) tstmp = st->start_time;
 721                 else if( st->first_dts != AV_NOPTS_VALUE ) tstmp = st->first_dts;
 722                 else tstmp = INT64_MIN+1;
 723         }
 724         else if( nudge != AV_NOPTS_VALUE ) tstmp += nudge;
 725         int idx = st->index;
 726 #if 0
 727 // seek all streams using the default timebase.
 728 //   this is how ffmpeg and ffplay work.  stream seeks are less tested.
 729         tstmp = av_rescale_q(tstmp, time_base, AV_TIME_BASE_Q);
 730         idx = -1;
 731 #endif
 732         frm_lock->lock("FFStream::seek");
 733         av_frame_free(&probe_frame);
 734         avcodec_flush_buffers(avctx);
 735         avformat_flush(fmt_ctx);
 736 #if 0
 737         int64_t seek = tstmp;
 738         int flags = AVSEEK_FLAG_ANY;
 739         if( !(fmt_ctx->iformat->flags & AVFMT_NO_BYTE_SEEK) && pkt_pos >= 0 ) {
 740                 seek = pkt_pos;
 741                 flags = AVSEEK_FLAG_BYTE;
 742         }
 743         int ret = avformat_seek_file(fmt_ctx, st->index, -INT64_MAX, seek, INT64_MAX, flags);
 744 #else
 745 // finds the first index frame below the target time
 746         int flags = AVSEEK_FLAG_BACKWARD | AVSEEK_FLAG_ANY;
 747         int ret = av_seek_frame(fmt_ctx, idx, tstmp, flags);
 748 #endif
 749         int retry = MAX_RETRY;
 750         while( ret >= 0 ) {
 751                 need_packet = 0;  flushed = 0;
 752                 seeked = 1;  st_eof(0);
 753 // read up to retry packets, limited to npkts in stream, and not pkt.pos past pkt_pos
 754                 while( --retry >= 0 ) {
 755                         if( read_packet() <= 0 ) { ret = -1;  break; }
 756                         if( ipkt->stream_index != st->index ) continue;
 757                         if( !ipkt->data || !ipkt->size ) continue;
 758                         if( pkt_pos >= 0 && ipkt->pos >= pkt_pos ) break;
 759                         if( --npkts <= 0 ) break;
 760                         int64_t pkt_ts = ipkt->dts != AV_NOPTS_VALUE ? ipkt->dts : ipkt->pts;
 761                         if( pkt_ts == AV_NOPTS_VALUE ) continue;
 762                         if( pkt_ts >= tstmp ) break;
 763                 }
 764                 if( retry < 0 ) {
 765                         fprintf(stderr,"FFStream::seek: retry limit, pos=%jd tstmp=%jd\n",pos,tstmp);
 766                         ret = -1;
 767                 }
 768                 if( ret < 0 ) break;
 769                 ret = avcodec_send_packet(avctx, ipkt);
 770                 if( !ret ) break;
 771 //some codecs need more than one pkt to resync
 772                 if( ret == AVERROR_INVALIDDATA ) ret = 0;
 773                 if( ret < 0 ) {
 774                         ff_err(ret, "FFStream::avcodec_send_packet failed.\nseek:%s\n",
 775                                 ffmpeg->fmt_ctx->url);
 776                         break;
 777                 }
 778         }
 779         frm_lock->unlock();
 780         if( ret < 0 ) {
 781 printf("** seek fail %jd, %jd\n", pos, tstmp);
 782                 seeked = need_packet = 0;
 783                 st_eof(flushed=1);
 784                 return -1;
 785         }
 786 //printf("seeked pos = %ld, %ld\n", pos, tstmp);
 787         seek_pos = curr_pos = pos;
 788         return 0;
 789 }
 790
 791 FFAudioStream::FFAudioStream(FFMPEG *ffmpeg, AVStream *strm, int idx, int fidx)
 792  : FFStream(ffmpeg, strm, fidx)
 793 {
 794         this->idx = idx;
 795         channel0 = channels = 0;
 796         sample_rate = 0;
 797         mbsz = 0;
 798         frame_sz = AUDIO_MIN_FRAME_SZ;
 799         length = 0;
 800         resample_context = 0;
 801         swr_ichs = swr_ifmt = swr_irate = 0;
 802
 803         aud_bfr_sz = 0;
 804         aud_bfr = 0;
 805
 806 // history buffer
 807         nch = 2;
 808         sz = 0x10000;
 809         long bsz = sz * nch;
 810         bfr = new float[bsz];
 811         lmt = bfr + bsz;
 812         reset_history();
 813 }
 814
 815 FFAudioStream::~FFAudioStream()
 816 {
 817         if( resample_context ) swr_free(&resample_context);
 818         delete [] aud_bfr;
 819         delete [] bfr;
 820 }
 821
 822 void FFAudioStream::init_swr(int ichs, int ifmt, int irate)
 823 {
 824         if( resample_context ) {
 825                 if( swr_ichs == ichs && swr_ifmt == ifmt && swr_irate == irate )
 826                         return;
 827                 swr_free(&resample_context);
 828         }
 829         swr_ichs = ichs;  swr_ifmt = ifmt;  swr_irate = irate;
 830         if( ichs == channels && ifmt == AV_SAMPLE_FMT_FLT && irate == sample_rate )
 831                 return;
 832         uint64_t ilayout = av_get_default_channel_layout(ichs);
 833         if( !ilayout ) ilayout = ((uint64_t)1<<ichs) - 1;
 834         uint64_t olayout = av_get_default_channel_layout(channels);
 835         if( !olayout ) olayout = ((uint64_t)1<<channels) - 1;
 836         resample_context = swr_alloc_set_opts(NULL,
 837                 olayout, AV_SAMPLE_FMT_FLT, sample_rate,
 838                 ilayout, (AVSampleFormat)ifmt, irate,
 839                 0, NULL);
 840         if( resample_context )
 841                 swr_init(resample_context);
 842 }
 843
 844 int FFAudioStream::get_samples(float *&samples, uint8_t **data, int len)
 845 {
 846         samples = *(float **)data;
 847         if( resample_context ) {
 848                 if( len > aud_bfr_sz ) {
 849                         delete [] aud_bfr;
 850                         aud_bfr = 0;
 851                 }
 852                 if( !aud_bfr ) {
 853                         aud_bfr_sz = len;
 854                         aud_bfr = new float[aud_bfr_sz*channels];
 855                 }
 856                 int ret = swr_convert(resample_context,
 857                         (uint8_t**)&aud_bfr, aud_bfr_sz, (const uint8_t**)data, len);
 858                 if( ret < 0 ) {
 859                         ff_err(ret, "FFAudioStream::get_samples: swr_convert failed\n");
 860                         return -1;
 861                 }
 862                 samples = aud_bfr;
 863                 len = ret;
 864         }
 865         return len;
 866 }
 867
 868 int FFAudioStream::load_history(uint8_t **data, int len)
 869 {
 870         float *samples;
 871         len = get_samples(samples, data, len);
 872         if( len > 0 ) {
 873                 // biggest user bfr since seek + frame
 874                 realloc(mbsz + len + 1, channels);
 875                 write(samples, len);
 876         }
 877         return len;
 878 }
 879
 880 int FFAudioStream::decode_frame(AVFrame *frame)
 881 {
 882         int first_frame = seeked;  seeked = 0;
 883         frame->best_effort_timestamp = AV_NOPTS_VALUE;
 884         int ret = avcodec_receive_frame(avctx, frame);
 885         if( ret < 0 ) {
 886                 if( first_frame ) return 0;
 887                 if( ret == AVERROR(EAGAIN) ) return 0;
 888                 if( ret == AVERROR_EOF ) { st_eof(1); return 0; }
 889                 ff_err(ret, "FFAudioStream::decode_frame: Could not read audio frame.\nfile:%s\n",
 890                                 ffmpeg->fmt_ctx->url);
 891                 return -1;
 892         }
 893         int64_t pkt_ts = frame->best_effort_timestamp;
 894         if( pkt_ts != AV_NOPTS_VALUE ) {
 895                 double ts = ffmpeg->to_secs(pkt_ts - nudge, st->time_base);
 896                 double t = (double)curr_pos / sample_rate;
 897 // some time_base clocks are very grainy, too grainy for audio (clicks, pops)
 898                 if( fabs(ts - t) > AUDIO_PTS_TOLERANCE )
 899                         curr_pos = ts * sample_rate + 0.5;
 900         }
 901         return 1;
 902 }
 903
 904 int FFAudioStream::encode_activate()
 905 {
 906         if( writing >= 0 ) return writing;
 907         if( !avctx->codec ) return writing = 0;
 908         frame_sz = avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE ?
 909                 10000 : avctx->frame_size;
 910         return FFStream::encode_activate();
 911 }
 912
 913 int64_t FFAudioStream::load_buffer(double ** const sp, int len)
 914 {
 915         reserve(len+1, st->codecpar->channels);
 916         for( int ch=0; ch<nch; ++ch )
 917                 write(sp[ch], len, ch);
 918         return put_inp(len);
 919 }
 920
 921 int FFAudioStream::in_history(int64_t pos)
 922 {
 923         if( pos > curr_pos ) return 0;
 924         int64_t len = hpos;
 925         if( len > sz ) len = sz;
 926         if( pos < curr_pos - len ) return 0;
 927         return 1;
 928 }
 929
 930
 931 int FFAudioStream::init_frame(AVFrame *frame)
 932 {
 933         frame->nb_samples = frame_sz;
 934         frame->format = avctx->sample_fmt;
 935         frame->channel_layout = avctx->channel_layout;
 936         frame->sample_rate = avctx->sample_rate;
 937         int ret = av_frame_get_buffer(frame, 0);
 938         if (ret < 0)
 939                 ff_err(ret, "FFAudioStream::init_frame: av_frame_get_buffer failed\n");
 940         return ret;
 941 }
 942
 943 int FFAudioStream::load(int64_t pos, int len)
 944 {
 945         if( audio_seek(pos) < 0 ) return -1;
 946         if( !frame && !(frame=av_frame_alloc()) ) {
 947                 fprintf(stderr, "FFAudioStream::load: av_frame_alloc failed\n");
 948                 return -1;
 949         }
 950         if( mbsz < len ) mbsz = len;
 951         int64_t end_pos = pos + len;
 952         int ret = 0, i = len / frame_sz + MAX_RETRY;
 953         while( ret>=0 && !flushed && curr_pos<end_pos && --i>=0 ) {
 954                 ret = read_frame(frame);
 955                 if( ret > 0 && frame->nb_samples > 0 ) {
 956                         init_swr(frame->channels, frame->format, frame->sample_rate);
 957                         load_history(&frame->extended_data[0], frame->nb_samples);
 958                         curr_pos += frame->nb_samples;
 959                 }
 960         }
 961         if( end_pos > curr_pos ) {
 962                 zero(end_pos - curr_pos);
 963                 curr_pos = end_pos;
 964         }
 965         len = curr_pos - pos;
 966         iseek(len);
 967         return len;
 968 }
 969
 970 int FFAudioStream::audio_seek(int64_t pos)
 971 {
 972         if( decode_activate() <= 0 ) return -1;
 973         if( !st->codecpar ) return -1;
 974         if( in_history(pos) ) return 0;
 975         if( pos == curr_pos ) return 0;
 976         reset_history();  mbsz = 0;
 977 // guarentee preload > 1sec samples
 978         if( (pos-=sample_rate) < 0 ) pos = 0;
 979         if( seek(pos, sample_rate) < 0 ) return -1;
 980         return 1;
 981 }
 982
 983 int FFAudioStream::encode(double **samples, int len)
 984 {
 985         if( encode_activate() <= 0 ) return -1;
 986         ffmpeg->flow_ctl();
 987         int ret = 0;
 988         int64_t count = samples ? load_buffer(samples, len) : used();
 989         int frame_sz1 = samples ? frame_sz-1 : 0;
 990         FFrame *frm = 0;
 991
 992         while( ret >= 0 && count > frame_sz1 ) {
 993                 frm = new FFrame(this);
 994                 if( (ret=frm->initted()) < 0 ) break;
 995                 AVFrame *frame = *frm;
 996                 len = count >= frame_sz ? frame_sz : count;
 997                 float *bfrp = get_outp(len);
 998                 ret =  swr_convert(resample_context,
 999                         (uint8_t **)frame->extended_data, len,
1000                         (const uint8_t **)&bfrp, len);
1001                 if( ret < 0 ) {
1002                         ff_err(ret, "FFAudioStream::encode: swr_convert failed\n");
1003                         break;
1004                 }
1005                 frame->nb_samples = len;
1006                 frm->queue(curr_pos);
1007                 frm = 0;
1008                 curr_pos += len;
1009                 count -= len;
1010         }
1011
1012         delete frm;
1013         return ret >= 0 ? 0 : 1;
1014 }
1015
1016 int FFAudioStream::drain()
1017 {
1018         return encode(0,0);
1019 }
1020
1021 int FFAudioStream::encode_frame(AVFrame *frame)
1022 {
1023         return FFStream::encode_frame(frame);
1024 }
1025
1026 int FFAudioStream::write_packet(FFPacket &pkt)
1027 {
1028         return FFStream::write_packet(pkt);
1029 }
1030
1031 void FFAudioStream::load_markers()
1032 {
1033         IndexState *index_state = ffmpeg->file_base->asset->index_state;
1034         if( !index_state || idx >= index_state->audio_markers.size() ) return;
1035         if( index_state->marker_status == MARKERS_NOTTESTED ) return;
1036         FFStream::load_markers(*index_state->audio_markers[idx], sample_rate);
1037 }
1038
1039 IndexMarks *FFAudioStream::get_markers()
1040 {
1041         IndexState *index_state = ffmpeg->file_base->asset->index_state;
1042         if( !index_state || idx >= index_state->audio_markers.size() ) return 0;
1043         return index_state->audio_markers[idx];
1044 }
1045
1046 FFVideoStream::FFVideoStream(FFMPEG *ffmpeg, AVStream *strm, int idx, int fidx)
1047  : FFStream(ffmpeg, strm, fidx),
1048    FFVideoConvert(ffmpeg->ff_prefs())
1049 {
1050         this->idx = idx;
1051         width = height = 0;
1052         frame_rate = 0;
1053         aspect_ratio = 0;
1054         length = 0;
1055         interlaced = 0;
1056         top_field_first = 0;
1057         color_space = -1;
1058         color_range = -1;
1059 }
1060
1061 FFVideoStream::~FFVideoStream()
1062 {
1063 }
1064
1065 AVHWDeviceType FFVideoStream::decode_hw_activate()
1066 {
1067         AVHWDeviceType type = AV_HWDEVICE_TYPE_NONE;
1068         const char *hw_dev = ffmpeg->opt_hw_dev;
1069         if( !hw_dev ) hw_dev = getenv("CIN_HW_DEV");
1070         if( !hw_dev ) hw_dev = ffmpeg->ff_hw_dev();
1071         if( hw_dev && *hw_dev &&
1072             strcmp("none", hw_dev) && strcmp(_("none"), hw_dev) ) {
1073                 type = av_hwdevice_find_type_by_name(hw_dev);
1074                 if( type == AV_HWDEVICE_TYPE_NONE ) {
1075                         fprintf(stderr, "Device type %s is not supported.\n", hw_dev);
1076                         fprintf(stderr, "Available device types:");
1077                         while( (type = av_hwdevice_iterate_types(type)) != AV_HWDEVICE_TYPE_NONE )
1078                                 fprintf(stderr, " %s", av_hwdevice_get_type_name(type));
1079                         fprintf(stderr, "\n");
1080                 }
1081         }
1082         return type;
1083 }
1084
1085 int FFVideoStream::decode_hw_format(AVCodec *decoder, AVHWDeviceType type)
1086 {
1087         int ret = 0;
1088         hw_pix_fmt = AV_PIX_FMT_NONE;
1089         for( int i=0; ; ++i ) {
1090                 const AVCodecHWConfig *config = avcodec_get_hw_config(decoder, i);
1091                 if( !config ) {
1092                         fprintf(stderr, "Decoder %s does not support device type %s.\n",
1093                                 decoder->name, av_hwdevice_get_type_name(type));
1094                         ret = -1;
1095                         break;
1096                 }
1097                 if( (config->methods & AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX) != 0 &&
1098                     config->device_type == type ) {
1099                         hw_pix_fmt = config->pix_fmt;
1100                         break;
1101                 }
1102         }
1103         if( hw_pix_fmt >= 0 ) {
1104                 hw_pixfmt = hw_pix_fmt;
1105                 avctx->get_format  = get_hw_format;
1106                 ret = av_hwdevice_ctx_create(&hw_device_ctx, type, 0, 0, 0);
1107                 if( ret >= 0 ) {
1108                         avctx->hw_device_ctx = av_buffer_ref(hw_device_ctx);
1109                         ret = 1;
1110                 }
1111                 else {
1112                         ff_err(ret, "Failed HW device create.\ndev:%s\n",
1113                                 av_hwdevice_get_type_name(type));
1114                         ret = -1;
1115                 }
1116         }
1117         return ret;
1118 }
1119
1120 AVHWDeviceType FFVideoStream::encode_hw_activate(const char *hw_dev)
1121 {
1122         AVBufferRef *hw_device_ctx = 0;
1123         AVBufferRef *hw_frames_ref = 0;
1124         AVHWDeviceType type = AV_HWDEVICE_TYPE_NONE;
1125         if( strcmp(_("none"), hw_dev) ) {
1126                 type = av_hwdevice_find_type_by_name(hw_dev);
1127                 if( type != AV_HWDEVICE_TYPE_VAAPI ) {
1128                         fprintf(stderr, "currently, only vaapi hw encode is supported\n");
1129                         type = AV_HWDEVICE_TYPE_NONE;
1130                 }
1131         }
1132         if( type != AV_HWDEVICE_TYPE_NONE ) {
1133                 int ret = av_hwdevice_ctx_create(&hw_device_ctx, AV_HWDEVICE_TYPE_VAAPI, 0, 0, 0);
1134                 if( ret < 0 ) {
1135                         ff_err(ret, "Failed to create a HW device.\n");
1136                         type = AV_HWDEVICE_TYPE_NONE;
1137                 }
1138         }
1139         if( type != AV_HWDEVICE_TYPE_NONE ) {
1140                 hw_frames_ref = av_hwframe_ctx_alloc(hw_device_ctx);
1141                 if( !hw_frames_ref ) {
1142                         fprintf(stderr, "Failed to create HW frame context.\n");
1143                         type = AV_HWDEVICE_TYPE_NONE;
1144                 }
1145         }
1146         if( type != AV_HWDEVICE_TYPE_NONE ) {
1147                 AVHWFramesContext *frames_ctx = (AVHWFramesContext *)(hw_frames_ref->data);
1148                 frames_ctx->format = AV_PIX_FMT_VAAPI;
1149                 frames_ctx->sw_format = AV_PIX_FMT_NV12;
1150                 frames_ctx->width = width;
1151                 frames_ctx->height = height;
1152                 frames_ctx->initial_pool_size = 0; // 200;
1153                 int ret = av_hwframe_ctx_init(hw_frames_ref);
1154                 if( ret >= 0 ) {
1155                         avctx->hw_frames_ctx = av_buffer_ref(hw_frames_ref);
1156                         if( !avctx->hw_frames_ctx ) ret = AVERROR(ENOMEM);
1157                 }
1158                 if( ret < 0 ) {
1159                         ff_err(ret, "Failed to initialize HW frame context.\n");
1160                         type = AV_HWDEVICE_TYPE_NONE;
1161                 }
1162                 av_buffer_unref(&hw_frames_ref);
1163         }
1164         return type;
1165 }
1166
1167 int FFVideoStream::encode_hw_write(FFrame *picture)
1168 {
1169         int ret = 0;
1170         AVFrame *hw_frm = 0;
1171         switch( avctx->pix_fmt ) {
1172         case AV_PIX_FMT_VAAPI:
1173                 hw_frm = av_frame_alloc();
1174                 if( !hw_frm ) { ret = AVERROR(ENOMEM);  break; }
1175                 ret = av_hwframe_get_buffer(avctx->hw_frames_ctx, hw_frm, 0);
1176                 if( ret < 0 ) break;
1177                 ret = av_hwframe_transfer_data(hw_frm, *picture, 0);
1178                 if( ret < 0 ) break;
1179                 picture->set_hw_frame(hw_frm);
1180                 return 0;
1181         default:
1182                 return 0;
1183         }
1184         av_frame_free(&hw_frm);
1185         ff_err(ret, "Error while transferring frame data to GPU.\n");
1186         return ret;
1187 }
1188
1189 int FFVideoStream::decode_frame(AVFrame *frame)
1190 {
1191         int first_frame = seeked;  seeked = 0;
1192         int ret = avcodec_receive_frame(avctx, frame);
1193         if( ret < 0 ) {
1194                 if( first_frame ) return 0;
1195                 if( ret == AVERROR(EAGAIN) ) return 0;
1196                 if( ret == AVERROR_EOF ) { st_eof(1); return 0; }
1197                 ff_err(ret, "FFVideoStream::decode_frame: Could not read video frame.\nfile:%s\n,",
1198                                 ffmpeg->fmt_ctx->url);
1199                 return -1;
1200         }
1201         int64_t pkt_ts = frame->best_effort_timestamp;
1202         if( pkt_ts != AV_NOPTS_VALUE )
1203                 curr_pos = ffmpeg->to_secs(pkt_ts - nudge, st->time_base) * frame_rate + 0.5;
1204         return 1;
1205 }
1206
1207 int FFVideoStream::load(VFrame *vframe, int64_t pos)
1208 {
1209         int ret = video_seek(pos);
1210         if( ret < 0 ) return -1;
1211         if( !frame && !(frame=av_frame_alloc()) ) {
1212                 fprintf(stderr, "FFVideoStream::load: av_frame_alloc failed\n");
1213                 return -1;
1214         }
1215         int i = MAX_RETRY + pos - curr_pos;
1216         while( ret>=0 && !flushed && curr_pos<=pos && --i>=0 ) {
1217                 ret = read_frame(frame);
1218                 if( ret > 0 ) ++curr_pos;
1219         }
1220         if( frame->format == AV_PIX_FMT_NONE || frame->width <= 0 || frame->height <= 0 )
1221                 ret = -1;
1222         if( ret >= 0 ) {
1223                 ret = convert_cmodel(vframe, frame);
1224         }
1225         ret = ret > 0 ? 1 : ret < 0 ? -1 : 0;
1226         return ret;
1227 }
1228
1229 int FFVideoStream::video_seek(int64_t pos)
1230 {
1231         if( decode_activate() <= 0 ) return -1;
1232         if( !st->codecpar ) return -1;
1233         if( pos == curr_pos-1 && !seeked ) return 0;
1234 // if close enough, just read up to current
1235         int gop = avctx->gop_size;
1236         if( gop < 4 ) gop = 4;
1237         if( gop > 64 ) gop = 64;
1238         int read_limit = curr_pos + 3*gop;
1239         if( pos >= curr_pos && pos <= read_limit ) return 0;
1240 // guarentee preload more than 2*gop frames
1241         if( seek(pos - 3*gop, frame_rate) < 0 ) return -1;
1242         return 1;
1243 }
1244
1245 int FFVideoStream::init_frame(AVFrame *picture)
1246 {
1247         switch( avctx->pix_fmt ) {
1248         case AV_PIX_FMT_VAAPI:
1249                 picture->format = AV_PIX_FMT_NV12;
1250                 break;
1251         default:
1252                 picture->format = avctx->pix_fmt;
1253                 break;
1254         }
1255         picture->width  = avctx->width;
1256         picture->height = avctx->height;
1257         int ret = av_frame_get_buffer(picture, 32);
1258         return ret;
1259 }
1260
1261 int FFVideoStream::encode(VFrame *vframe)
1262 {
1263         if( encode_activate() <= 0 ) return -1;
1264         ffmpeg->flow_ctl();
1265         FFrame *picture = new FFrame(this);
1266         int ret = picture->initted();
1267         if( ret >= 0 ) {
1268                 AVFrame *frame = *picture;
1269                 frame->pts = curr_pos;
1270                 ret = convert_pixfmt(vframe, frame);
1271         }
1272         if( ret >= 0 && avctx->hw_frames_ctx )
1273                 encode_hw_write(picture);
1274         if( ret >= 0 ) {
1275                 picture->queue(curr_pos);
1276                 ++curr_pos;
1277         }
1278         else {
1279                 fprintf(stderr, "FFVideoStream::encode: encode failed\n");
1280                 delete picture;
1281         }
1282         return ret >= 0 ? 0 : 1;
1283 }
1284
1285 int FFVideoStream::drain()
1286 {
1287         return 0;
1288 }
1289
1290 int FFVideoStream::encode_frame(AVFrame *frame)
1291 {
1292         if( frame ) {
1293                 frame->interlaced_frame = interlaced;
1294                 frame->top_field_first = top_field_first;
1295         }
1296         if( frame && frame->format == AV_PIX_FMT_VAAPI ) { // ugly
1297                 int ret = avcodec_send_frame(avctx, frame);
1298                 for( int retry=MAX_RETRY; !ret && --retry>=0; ) {
1299                         FFPacket pkt;  av_init_packet(pkt);
1300                         pkt->data = NULL;  pkt->size = 0;
1301                         if( (ret=avcodec_receive_packet(avctx, pkt)) < 0 ) {
1302                                 if( ret == AVERROR(EAGAIN) ) ret = 0; // weird
1303                                 break;
1304                         }
1305                         ret = write_packet(pkt);
1306                         pkt->stream_index = 0;
1307                         av_packet_unref(pkt);
1308                 }
1309                 if( ret < 0 ) {
1310                         ff_err(ret, "FFStream::encode_frame: vaapi encode failed.\nfile: %s\n",
1311                                 ffmpeg->fmt_ctx->url);
1312                         return -1;
1313                 }
1314                 return 0;
1315         }
1316         return FFStream::encode_frame(frame);
1317 }
1318
1319 int FFVideoStream::write_packet(FFPacket &pkt)
1320 {
1321         if( !(ffmpeg->fmt_ctx->oformat->flags & AVFMT_VARIABLE_FPS) )
1322                 pkt->duration = 1;
1323         return FFStream::write_packet(pkt);
1324 }
1325
1326 AVPixelFormat FFVideoConvert::color_model_to_pix_fmt(int color_model)
1327 {
1328         switch( color_model ) {
1329         case BC_YUV422:         return AV_PIX_FMT_YUYV422;
1330         case BC_RGB888:         return AV_PIX_FMT_RGB24;
1331         case BC_RGBA8888:       return AV_PIX_FMT_RGBA;
1332         case BC_BGR8888:        return AV_PIX_FMT_BGR0;
1333         case BC_BGR888:         return AV_PIX_FMT_BGR24;
1334         case BC_ARGB8888:       return AV_PIX_FMT_ARGB;
1335         case BC_ABGR8888:       return AV_PIX_FMT_ABGR;
1336         case BC_RGB8:           return AV_PIX_FMT_RGB8;
1337         case BC_YUV420P:        return AV_PIX_FMT_YUV420P;
1338         case BC_YUV422P:        return AV_PIX_FMT_YUV422P;
1339         case BC_YUV444P:        return AV_PIX_FMT_YUV444P;
1340         case BC_YUV411P:        return AV_PIX_FMT_YUV411P;
1341         case BC_RGB565:         return AV_PIX_FMT_RGB565;
1342         case BC_RGB161616:      return AV_PIX_FMT_RGB48LE;
1343         case BC_RGBA16161616:   return AV_PIX_FMT_RGBA64LE;
1344         case BC_AYUV16161616:   return AV_PIX_FMT_AYUV64LE;
1345         case BC_GBRP:           return AV_PIX_FMT_GBRP;
1346         default: break;
1347         }
1348
1349         return AV_PIX_FMT_NB;
1350 }
1351
1352 int FFVideoConvert::pix_fmt_to_color_model(AVPixelFormat pix_fmt)
1353 {
1354         switch (pix_fmt) {
1355         case AV_PIX_FMT_YUYV422:        return BC_YUV422;
1356         case AV_PIX_FMT_RGB24:          return BC_RGB888;
1357         case AV_PIX_FMT_RGBA:           return BC_RGBA8888;
1358         case AV_PIX_FMT_BGR0:           return BC_BGR8888;
1359         case AV_PIX_FMT_BGR24:          return BC_BGR888;
1360         case AV_PIX_FMT_ARGB:           return BC_ARGB8888;
1361         case AV_PIX_FMT_ABGR:           return BC_ABGR8888;
1362         case AV_PIX_FMT_RGB8:           return BC_RGB8;
1363         case AV_PIX_FMT_YUV420P:        return BC_YUV420P;
1364         case AV_PIX_FMT_YUV422P:        return BC_YUV422P;
1365         case AV_PIX_FMT_YUV444P:        return BC_YUV444P;
1366         case AV_PIX_FMT_YUV411P:        return BC_YUV411P;
1367         case AV_PIX_FMT_RGB565:         return BC_RGB565;
1368         case AV_PIX_FMT_RGB48LE:        return BC_RGB161616;
1369         case AV_PIX_FMT_RGBA64LE:       return BC_RGBA16161616;
1370         case AV_PIX_FMT_AYUV64LE:       return BC_AYUV16161616;
1371         case AV_PIX_FMT_GBRP:           return BC_GBRP;
1372         default: break;
1373         }
1374
1375         return -1;
1376 }
1377
1378 int FFVideoConvert::convert_picture_vframe(VFrame *frame, AVFrame *ip)
1379 {
1380         AVFrame *ipic = av_frame_alloc();
1381         int ret = convert_picture_vframe(frame, ip, ipic);
1382         av_frame_free(&ipic);
1383         return ret;
1384 }
1385
1386 int FFVideoConvert::convert_picture_vframe(VFrame *frame, AVFrame *ip, AVFrame *ipic)
1387 { // picture = vframe
1388         int cmodel = frame->get_color_model();
1389         AVPixelFormat ofmt = color_model_to_pix_fmt(cmodel);
1390         if( ofmt == AV_PIX_FMT_NB ) return -1;
1391         int size = av_image_fill_arrays(ipic->data, ipic->linesize,
1392                 frame->get_data(), ofmt, frame->get_w(), frame->get_h(), 1);
1393         if( size < 0 ) return -1;
1394
1395         int bpp = BC_CModels::calculate_pixelsize(cmodel);
1396         int ysz = bpp * frame->get_w(), usz = ysz;
1397         switch( cmodel ) {
1398         case BC_YUV410P:
1399         case BC_YUV411P:
1400                 usz /= 2;
1401         case BC_YUV420P:
1402         case BC_YUV422P:
1403                 usz /= 2;
1404         case BC_YUV444P:
1405         case BC_GBRP:
1406                 // override av_image_fill_arrays() for planar types
1407                 ipic->data[0] = frame->get_y();  ipic->linesize[0] = ysz;
1408                 ipic->data[1] = frame->get_u();  ipic->linesize[1] = usz;
1409                 ipic->data[2] = frame->get_v();  ipic->linesize[2] = usz;
1410                 break;
1411         default:
1412                 ipic->data[0] = frame->get_data();
1413                 ipic->linesize[0] = frame->get_bytes_per_line();
1414                 break;
1415         }
1416
1417         AVPixelFormat pix_fmt = (AVPixelFormat)ip->format;
1418         FFVideoStream *vid =(FFVideoStream *)this;
1419         if( pix_fmt == vid->hw_pixfmt ) {
1420                 int ret = 0;
1421                 if( !sw_frame && !(sw_frame=av_frame_alloc()) )
1422                         ret = AVERROR(ENOMEM);
1423                 if( !ret ) {
1424                         ret = av_hwframe_transfer_data(sw_frame, ip, 0);
1425                         ip = sw_frame;
1426                         pix_fmt = (AVPixelFormat)ip->format;
1427                 }
1428                 if( ret < 0 ) {
1429                         eprintf(_("Error retrieving data from GPU to CPU\nfile: %s\n"),
1430                                 vid->ffmpeg->fmt_ctx->url);
1431                         return -1;
1432                 }
1433         }
1434         convert_ctx = sws_getCachedContext(convert_ctx, ip->width, ip->height, pix_fmt,
1435                 frame->get_w(), frame->get_h(), ofmt, SWS_POINT, NULL, NULL, NULL);
1436         if( !convert_ctx ) {
1437                 fprintf(stderr, "FFVideoConvert::convert_picture_frame:"
1438                                 " sws_getCachedContext() failed\n");
1439                 return -1;
1440         }
1441
1442         int color_range = 0;
1443         switch( preferences->yuv_color_range ) {
1444         case BC_COLORS_JPEG:  color_range = 1;  break;
1445         case BC_COLORS_MPEG:  color_range = 0;  break;
1446         }
1447         int color_space = SWS_CS_ITU601;
1448         switch( preferences->yuv_color_space ) {
1449         case BC_COLORS_BT601:  color_space = SWS_CS_ITU601;  break;
1450         case BC_COLORS_BT709:  color_space = SWS_CS_ITU709;  break;
1451         case BC_COLORS_BT2020: color_space = SWS_CS_BT2020;  break;
1452         }
1453         const int *color_table = sws_getCoefficients(color_space);
1454
1455         int *inv_table, *table, src_range, dst_range;
1456         int brightness, contrast, saturation;
1457         if( !sws_getColorspaceDetails(convert_ctx,
1458                         &inv_table, &src_range, &table, &dst_range,
1459                         &brightness, &contrast, &saturation) ) {
1460                 if( src_range != color_range || dst_range != color_range ||
1461                     inv_table != color_table || table != color_table )
1462                         sws_setColorspaceDetails(convert_ctx,
1463                                         color_table, color_range, color_table, color_range,
1464                                         brightness, contrast, saturation);
1465         }
1466
1467         int ret = sws_scale(convert_ctx, ip->data, ip->linesize, 0, ip->height,
1468             ipic->data, ipic->linesize);
1469         if( ret < 0 ) {
1470                 ff_err(ret, "FFVideoConvert::convert_picture_frame: sws_scale() failed\nfile: %s\n",
1471                         vid->ffmpeg->fmt_ctx->url);
1472                 return -1;
1473         }
1474         return 0;
1475 }
1476
1477 int FFVideoConvert::convert_cmodel(VFrame *frame, AVFrame *ip)
1478 {
1479         // try direct transfer
1480         if( !convert_picture_vframe(frame, ip) ) return 1;
1481         // use indirect transfer
1482         AVPixelFormat ifmt = (AVPixelFormat)ip->format;
1483         const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(ifmt);
1484         int max_bits = 0;
1485         for( int i = 0; i <desc->nb_components; ++i ) {
1486                 int bits = desc->comp[i].depth;
1487                 if( bits > max_bits ) max_bits = bits;
1488         }
1489         int imodel = pix_fmt_to_color_model(ifmt);
1490         int imodel_is_yuv = BC_CModels::is_yuv(imodel);
1491         int cmodel = frame->get_color_model();
1492         int cmodel_is_yuv = BC_CModels::is_yuv(cmodel);
1493         if( imodel < 0 || imodel_is_yuv != cmodel_is_yuv ) {
1494                 imodel = cmodel_is_yuv ?
1495                     (BC_CModels::has_alpha(cmodel) ?
1496                         BC_AYUV16161616 :
1497                         (max_bits > 8 ? BC_AYUV16161616 : BC_YUV444P)) :
1498                     (BC_CModels::has_alpha(cmodel) ?
1499                         (max_bits > 8 ? BC_RGBA16161616 : BC_RGBA8888) :
1500                         (max_bits > 8 ? BC_RGB161616 : BC_RGB888)) ;
1501         }
1502         VFrame vframe(ip->width, ip->height, imodel);
1503         if( convert_picture_vframe(&vframe, ip) ) return -1;
1504         frame->transfer_from(&vframe);
1505         return 1;
1506 }
1507
1508 int FFVideoConvert::transfer_cmodel(VFrame *frame, AVFrame *ifp)
1509 {
1510         int ret = convert_cmodel(frame, ifp);
1511         if( ret > 0 ) {
1512                 const AVDictionary *src = ifp->metadata;
1513                 AVDictionaryEntry *t = NULL;
1514                 BC_Hash *hp = frame->get_params();
1515                 //hp->clear();
1516                 while( (t=av_dict_get(src, "", t, AV_DICT_IGNORE_SUFFIX)) )
1517                         hp->update(t->key, t->value);
1518         }
1519         return ret;
1520 }
1521
1522 int FFVideoConvert::convert_vframe_picture(VFrame *frame, AVFrame *op)
1523 {
1524         AVFrame *opic = av_frame_alloc();
1525         int ret = convert_vframe_picture(frame, op, opic);
1526         av_frame_free(&opic);
1527         return ret;
1528 }
1529
1530 int FFVideoConvert::convert_vframe_picture(VFrame *frame, AVFrame *op, AVFrame *opic)
1531 { // vframe = picture
1532         int cmodel = frame->get_color_model();
1533         AVPixelFormat ifmt = color_model_to_pix_fmt(cmodel);
1534         if( ifmt == AV_PIX_FMT_NB ) return -1;
1535         int size = av_image_fill_arrays(opic->data, opic->linesize,
1536                  frame->get_data(), ifmt, frame->get_w(), frame->get_h(), 1);
1537         if( size < 0 ) return -1;
1538
1539         int bpp = BC_CModels::calculate_pixelsize(cmodel);
1540         int ysz = bpp * frame->get_w(), usz = ysz;
1541         switch( cmodel ) {
1542         case BC_YUV410P:
1543         case BC_YUV411P:
1544                 usz /= 2;
1545         case BC_YUV420P:
1546         case BC_YUV422P:
1547                 usz /= 2;
1548         case BC_YUV444P:
1549         case BC_GBRP:
1550                 // override av_image_fill_arrays() for planar types
1551                 opic->data[0] = frame->get_y();  opic->linesize[0] = ysz;
1552                 opic->data[1] = frame->get_u();  opic->linesize[1] = usz;
1553                 opic->data[2] = frame->get_v();  opic->linesize[2] = usz;
1554                 break;
1555         default:
1556                 opic->data[0] = frame->get_data();
1557                 opic->linesize[0] = frame->get_bytes_per_line();
1558                 break;
1559         }
1560
1561         AVPixelFormat ofmt = (AVPixelFormat)op->format;
1562         convert_ctx = sws_getCachedContext(convert_ctx, frame->get_w(), frame->get_h(),
1563                 ifmt, op->width, op->height, ofmt, SWS_POINT, NULL, NULL, NULL);
1564         if( !convert_ctx ) {
1565                 fprintf(stderr, "FFVideoConvert::convert_frame_picture:"
1566                                 " sws_getCachedContext() failed\n");
1567                 return -1;
1568         }
1569
1570
1571         int color_range = 0;
1572         switch( preferences->yuv_color_range ) {
1573         case BC_COLORS_JPEG:  color_range = 1;  break;
1574         case BC_COLORS_MPEG:  color_range = 0;  break;
1575         }
1576         int color_space = SWS_CS_ITU601;
1577         switch( preferences->yuv_color_space ) {
1578         case BC_COLORS_BT601:  color_space = SWS_CS_ITU601;  break;
1579         case BC_COLORS_BT709:  color_space = SWS_CS_ITU709;  break;
1580         case BC_COLORS_BT2020: color_space = SWS_CS_BT2020;  break;
1581         }
1582         const int *color_table = sws_getCoefficients(color_space);
1583
1584         int *inv_table, *table, src_range, dst_range;
1585         int brightness, contrast, saturation;
1586         if( !sws_getColorspaceDetails(convert_ctx,
1587                         &inv_table, &src_range, &table, &dst_range,
1588                         &brightness, &contrast, &saturation) ) {
1589                 if( dst_range != color_range || table != color_table )
1590                         sws_setColorspaceDetails(convert_ctx,
1591                                         inv_table, src_range, color_table, color_range,
1592                                         brightness, contrast, saturation);
1593         }
1594
1595         int ret = sws_scale(convert_ctx, opic->data, opic->linesize, 0, frame->get_h(),
1596                         op->data, op->linesize);
1597         if( ret < 0 ) {
1598                 ff_err(ret, "FFVideoConvert::convert_frame_picture: sws_scale() failed\n");
1599                 return -1;
1600         }
1601         return 0;
1602 }
1603
1604 int FFVideoConvert::convert_pixfmt(VFrame *frame, AVFrame *op)
1605 {
1606         // try direct transfer
1607         if( !convert_vframe_picture(frame, op) ) return 1;
1608         // use indirect transfer
1609         int cmodel = frame->get_color_model();
1610         int max_bits = BC_CModels::calculate_pixelsize(cmodel) * 8;
1611         max_bits /= BC_CModels::components(cmodel);
1612         AVPixelFormat ofmt = (AVPixelFormat)op->format;
1613         int imodel = pix_fmt_to_color_model(ofmt);
1614         int imodel_is_yuv = BC_CModels::is_yuv(imodel);
1615         int cmodel_is_yuv = BC_CModels::is_yuv(cmodel);
1616         if( imodel < 0 || imodel_is_yuv != cmodel_is_yuv ) {
1617                 imodel = cmodel_is_yuv ?
1618                     (BC_CModels::has_alpha(cmodel) ?
1619                         BC_AYUV16161616 :
1620                         (max_bits > 8 ? BC_AYUV16161616 : BC_YUV444P)) :
1621                     (BC_CModels::has_alpha(cmodel) ?
1622                         (max_bits > 8 ? BC_RGBA16161616 : BC_RGBA8888) :
1623                         (max_bits > 8 ? BC_RGB161616 : BC_RGB888)) ;
1624         }
1625         VFrame vframe(frame->get_w(), frame->get_h(), imodel);
1626         vframe.transfer_from(frame);
1627         if( !convert_vframe_picture(&vframe, op) ) return 1;
1628         return -1;
1629 }
1630
1631 int FFVideoConvert::transfer_pixfmt(VFrame *frame, AVFrame *ofp)
1632 {
1633         int ret = convert_pixfmt(frame, ofp);
1634         if( ret > 0 ) {
1635                 BC_Hash *hp = frame->get_params();
1636                 AVDictionary **dict = &ofp->metadata;
1637                 //av_dict_free(dict);
1638                 for( int i=0; i<hp->size(); ++i ) {
1639                         char *key = hp->get_key(i), *val = hp->get_value(i);
1640                         av_dict_set(dict, key, val, 0);
1641                 }
1642         }
1643         return ret;
1644 }
1645
1646 void FFVideoStream::load_markers()
1647 {
1648         IndexState *index_state = ffmpeg->file_base->asset->index_state;
1649         if( !index_state || idx >= index_state->video_markers.size() ) return;
1650         FFStream::load_markers(*index_state->video_markers[idx], frame_rate);
1651 }
1652
1653 IndexMarks *FFVideoStream::get_markers()
1654 {
1655         IndexState *index_state = ffmpeg->file_base->asset->index_state;
1656         if( !index_state || idx >= index_state->video_markers.size() ) return 0;
1657         return !index_state ? 0 : index_state->video_markers[idx];
1658 }
1659
1660
1661 FFMPEG::FFMPEG(FileBase *file_base)
1662 {
1663         fmt_ctx = 0;
1664         this->file_base = file_base;
1665         memset(file_format,0,sizeof(file_format));
1666         mux_lock = new Condition(0,"FFMPEG::mux_lock",0);
1667         flow_lock = new Condition(1,"FFStream::flow_lock",0);
1668         done = -1;
1669         flow = 1;
1670         decoding = encoding = 0;
1671         has_audio = has_video = 0;
1672         opts = 0;
1673         opt_duration = -1;
1674         opt_video_filter = 0;
1675         opt_audio_filter = 0;
1676         opt_hw_dev = 0;
1677         opt_video_decoder = 0;
1678         opt_audio_decoder = 0;
1679         fflags = 0;
1680         char option_path[BCTEXTLEN];
1681         set_option_path(option_path, "%s", "ffmpeg.opts");
1682         read_options(option_path, opts);
1683 }
1684
1685 FFMPEG::~FFMPEG()
1686 {
1687         ff_lock("FFMPEG::~FFMPEG()");
1688         close_encoder();
1689         ffaudio.remove_all_objects();
1690         ffvideo.remove_all_objects();
1691         if( fmt_ctx ) avformat_close_input(&fmt_ctx);
1692         ff_unlock();
1693         delete flow_lock;
1694         delete mux_lock;
1695         av_dict_free(&opts);
1696         delete [] opt_video_filter;
1697         delete [] opt_audio_filter;
1698         delete [] opt_hw_dev;
1699 }
1700
1701 int FFMPEG::check_sample_rate(AVCodec *codec, int sample_rate)
1702 {
1703         const int *p = codec->supported_samplerates;
1704         if( !p ) return sample_rate;
1705         while( *p != 0 ) {
1706                 if( *p == sample_rate ) return *p;
1707                 ++p;
1708         }
1709         return 0;
1710 }
1711
1712 static inline AVRational std_frame_rate(int i)
1713 {
1714         static const int m1 = 1001*12, m2 = 1000*12;
1715         static const int freqs[] = {
1716                 40*m1, 48*m1, 50*m1, 60*m1, 80*m1,120*m1, 240*m1,
1717                 24*m2, 30*m2, 60*m2, 12*m2, 15*m2, 48*m2, 0,
1718         };
1719         int freq = i<30*12 ? (i+1)*1001 : freqs[i-30*12];
1720         return (AVRational) { freq, 1001*12 };
1721 }
1722
1723 AVRational FFMPEG::check_frame_rate(AVCodec *codec, double frame_rate)
1724 {
1725         const AVRational *p = codec->supported_framerates;
1726         AVRational rate, best_rate = (AVRational) { 0, 0 };
1727         double max_err = 1.;  int i = 0;
1728         while( ((p ? (rate=*p++) : (rate=std_frame_rate(i++))), rate.num) != 0 ) {
1729                 double framerate = (double) rate.num / rate.den;
1730                 double err = fabs(frame_rate/framerate - 1.);
1731                 if( err >= max_err ) continue;
1732                 max_err = err;
1733                 best_rate = rate;
1734         }
1735         return max_err < 0.0001 ? best_rate : (AVRational) { 0, 0 };
1736 }
1737
1738 AVRational FFMPEG::to_sample_aspect_ratio(Asset *asset)
1739 {
1740 #if 1
1741         double display_aspect = asset->width / (double)asset->height;
1742         double sample_aspect = display_aspect / asset->aspect_ratio;
1743         int width = 1000000, height = width * sample_aspect + 0.5;
1744         float w, h;
1745         MWindow::create_aspect_ratio(w, h, width, height);
1746         return (AVRational){(int)w, (int)h};
1747 #else
1748 // square pixels
1749         return (AVRational){1, 1};
1750 #endif
1751 }
1752
1753 AVRational FFMPEG::to_time_base(int sample_rate)
1754 {
1755         return (AVRational){1, sample_rate};
1756 }
1757
1758 int FFMPEG::get_fmt_score(AVSampleFormat dst_fmt, AVSampleFormat src_fmt)
1759 {
1760         int score = 0;
1761         int dst_planar = av_sample_fmt_is_planar(dst_fmt);
1762         int src_planar = av_sample_fmt_is_planar(src_fmt);
1763         if( dst_planar != src_planar ) ++score;
1764         int dst_bytes = av_get_bytes_per_sample(dst_fmt);
1765         int src_bytes = av_get_bytes_per_sample(src_fmt);
1766         score += (src_bytes > dst_bytes ? 100 : -10) * (src_bytes - dst_bytes);
1767         int src_packed = av_get_packed_sample_fmt(src_fmt);
1768         int dst_packed = av_get_packed_sample_fmt(dst_fmt);
1769         if( dst_packed == AV_SAMPLE_FMT_S32 && src_packed == AV_SAMPLE_FMT_FLT ) score += 20;
1770         if( dst_packed == AV_SAMPLE_FMT_FLT && src_packed == AV_SAMPLE_FMT_S32 ) score += 2;
1771         return score;
1772 }
1773
1774 AVSampleFormat FFMPEG::find_best_sample_fmt_of_list(
1775                 const AVSampleFormat *sample_fmts, AVSampleFormat src_fmt)
1776 {
1777         AVSampleFormat best = AV_SAMPLE_FMT_NONE;
1778         int best_score = get_fmt_score(best, src_fmt);
1779         for( int i=0; sample_fmts[i] >= 0; ++i ) {
1780                 AVSampleFormat sample_fmt = sample_fmts[i];
1781                 int score = get_fmt_score(sample_fmt, src_fmt);
1782                 if( score >= best_score ) continue;
1783                 best = sample_fmt;  best_score = score;
1784         }
1785         return best;
1786 }
1787
1788
1789 void FFMPEG::set_option_path(char *path, const char *fmt, ...)
1790 {
1791         char *ep = path + BCTEXTLEN-1;
1792         strncpy(path, File::get_cindat_path(), ep-path);
1793         strncat(path, "/ffmpeg/", ep-path);
1794         path += strlen(path);
1795         va_list ap;
1796         va_start(ap, fmt);
1797         path += vsnprintf(path, ep-path, fmt, ap);
1798         va_end(ap);
1799         *path = 0;
1800 }
1801
1802 void FFMPEG::get_option_path(char *path, const char *type, const char *spec)
1803 {
1804         if( *spec == '/' )
1805                 strcpy(path, spec);
1806         else
1807                 set_option_path(path, "%s/%s", type, spec);
1808 }
1809
1810 int FFMPEG::get_format(char *format, const char *path, const char *spec)
1811 {
1812         char option_path[BCTEXTLEN], line[BCTEXTLEN], codec[BCTEXTLEN];
1813         get_option_path(option_path, path, spec);
1814         FILE *fp = fopen(option_path,"r");
1815         if( !fp ) return 1;
1816         int ret = 0;
1817         if( !fgets(line, sizeof(line), fp) ) ret = 1;
1818         if( !ret ) {
1819                 line[sizeof(line)-1] = 0;
1820                 ret = scan_option_line(line, format, codec);
1821         }
1822         fclose(fp);
1823         return ret;
1824 }
1825
1826 int FFMPEG::get_codec(char *codec, const char *path, const char *spec)
1827 {
1828         char option_path[BCTEXTLEN], line[BCTEXTLEN], format[BCTEXTLEN];
1829         get_option_path(option_path, path, spec);
1830         FILE *fp = fopen(option_path,"r");
1831         if( !fp ) return 1;
1832         int ret = 0;
1833         if( !fgets(line, sizeof(line), fp) ) ret = 1;
1834         fclose(fp);
1835         if( !ret ) {
1836                 line[sizeof(line)-1] = 0;
1837                 ret = scan_option_line(line, format, codec);
1838         }
1839         if( !ret ) {
1840                 char *vp = codec, *ep = vp+BCTEXTLEN-1;
1841                 while( vp < ep && *vp && *vp != '|' ) ++vp;
1842                 if( *vp == '|' ) --vp;
1843                 while( vp > codec && (*vp==' ' || *vp=='\t') ) *vp-- = 0;
1844         }
1845         return ret;
1846 }
1847
1848 int FFMPEG::get_file_format()
1849 {
1850         char audio_muxer[BCSTRLEN], video_muxer[BCSTRLEN];
1851         char audio_format[BCSTRLEN], video_format[BCSTRLEN];
1852         audio_muxer[0] = audio_format[0] = 0;
1853         video_muxer[0] = video_format[0] = 0;
1854         Asset *asset = file_base->asset;
1855         int ret = asset ? 0 : 1;
1856         if( !ret && asset->audio_data ) {
1857                 if( !(ret=get_format(audio_format, "audio", asset->acodec)) ) {
1858                         if( get_format(audio_muxer, "format", audio_format) ) {
1859                                 strcpy(audio_muxer, audio_format);
1860                                 audio_format[0] = 0;
1861                         }
1862                 }
1863         }
1864         if( !ret && asset->video_data ) {
1865                 if( !(ret=get_format(video_format, "video", asset->vcodec)) ) {
1866                         if( get_format(video_muxer, "format", video_format) ) {
1867                                 strcpy(video_muxer, video_format);
1868                                 video_format[0] = 0;
1869                         }
1870                 }
1871         }
1872         if( !ret && !audio_muxer[0] && !video_muxer[0] )
1873                 ret = 1;
1874         if( !ret && audio_muxer[0] && video_muxer[0] &&
1875             strcmp(audio_muxer, video_muxer) ) ret = -1;
1876         if( !ret && audio_format[0] && video_format[0] &&
1877             strcmp(audio_format, video_format) ) ret = -1;
1878         if( !ret )
1879                 strcpy(file_format, !audio_format[0] && !video_format[0] ?
1880                         (audio_muxer[0] ? audio_muxer : video_muxer) :
1881                         (audio_format[0] ? audio_format : video_format));
1882         return ret;
1883 }
1884
1885 int FFMPEG::scan_option_line(const char *cp, char *tag, char *val)
1886 {
1887         while( *cp == ' ' || *cp == '\t' ) ++cp;
1888         const char *bp = cp;
1889         while( *cp && *cp != ' ' && *cp != '\t' && *cp != '=' && *cp != '\n' ) ++cp;
1890         int len = cp - bp;
1891         if( !len || len > BCSTRLEN-1 ) return 1;
1892         while( bp < cp ) *tag++ = *bp++;
1893         *tag = 0;
1894         while( *cp == ' ' || *cp == '\t' ) ++cp;
1895         if( *cp == '=' ) ++cp;
1896         while( *cp == ' ' || *cp == '\t' ) ++cp;
1897         bp = cp;
1898         while( *cp && *cp != '\n' ) ++cp;
1899         len = cp - bp;
1900         if( len > BCTEXTLEN-1 ) return 1;
1901         while( bp < cp ) *val++ = *bp++;
1902         *val = 0;
1903         return 0;
1904 }
1905
1906 int FFMPEG::can_render(const char *fformat, const char *type)
1907 {
1908         FileSystem fs;
1909         char option_path[BCTEXTLEN];
1910         FFMPEG::set_option_path(option_path, type);
1911         fs.update(option_path);
1912         int total_files = fs.total_files();
1913         for( int i=0; i<total_files; ++i ) {
1914                 const char *name = fs.get_entry(i)->get_name();
1915                 const char *ext = strrchr(name,'.');
1916                 if( !ext ) continue;
1917                 if( !strcmp(fformat, ++ext) ) return 1;
1918         }
1919         return 0;
1920 }
1921
1922 int FFMPEG::get_ff_option(const char *nm, const char *options, char *value)
1923 {
1924         for( const char *cp=options; *cp!=0; ) {
1925                 char line[BCTEXTLEN], *bp = line, *ep = bp+sizeof(line)-1;
1926                 while( bp < ep && *cp && *cp!='\n' ) *bp++ = *cp++;
1927                 if( *cp ) ++cp;
1928                 *bp = 0;
1929                 if( !line[0] || line[0] == '#' || line[0] == ';' ) continue;
1930                 char key[BCSTRLEN], val[BCTEXTLEN];
1931                 if( FFMPEG::scan_option_line(line, key, val) ) continue;
1932                 if( !strcmp(key, nm) ) {
1933                         strncpy(value, val, BCSTRLEN);
1934                         return 0;
1935                 }
1936         }
1937         return 1;
1938 }
1939
1940 void FFMPEG::scan_audio_options(Asset *asset, EDL *edl)
1941 {
1942         char cin_sample_fmt[BCSTRLEN];
1943         int cin_fmt = AV_SAMPLE_FMT_NONE;
1944         const char *options = asset->ff_audio_options;
1945         if( !get_ff_option("cin_sample_fmt", options, cin_sample_fmt) )
1946                 cin_fmt = (int)av_get_sample_fmt(cin_sample_fmt);
1947         if( cin_fmt < 0 ) {
1948                 char audio_codec[BCSTRLEN]; audio_codec[0] = 0;
1949                 AVCodec *av_codec = !FFMPEG::get_codec(audio_codec, "audio", asset->acodec) ?
1950                         avcodec_find_encoder_by_name(audio_codec) : 0;
1951                 if( av_codec && av_codec->sample_fmts )
1952                         cin_fmt = find_best_sample_fmt_of_list(av_codec->sample_fmts, AV_SAMPLE_FMT_FLT);
1953         }
1954         if( cin_fmt < 0 ) cin_fmt = AV_SAMPLE_FMT_S16;
1955         const char *name = av_get_sample_fmt_name((AVSampleFormat)cin_fmt);
1956         if( !name ) name = _("None");
1957         strcpy(asset->ff_sample_format, name);
1958
1959         char value[BCSTRLEN];
1960         if( !get_ff_option("cin_bitrate", options, value) )
1961                 asset->ff_audio_bitrate = atoi(value);
1962         if( !get_ff_option("cin_quality", options, value) )
1963                 asset->ff_audio_quality = atoi(value);
1964 }
1965
1966 void FFMPEG::load_audio_options(Asset *asset, EDL *edl)
1967 {
1968         char options_path[BCTEXTLEN];
1969         set_option_path(options_path, "audio/%s", asset->acodec);
1970         if( !load_options(options_path,
1971                         asset->ff_audio_options,
1972                         sizeof(asset->ff_audio_options)) )
1973                 scan_audio_options(asset, edl);
1974 }
1975
1976 void FFMPEG::scan_video_options(Asset *asset, EDL *edl)
1977 {
1978         char cin_pix_fmt[BCSTRLEN];
1979         int cin_fmt = AV_PIX_FMT_NONE;
1980         const char *options = asset->ff_video_options;
1981         if( !get_ff_option("cin_pix_fmt", options, cin_pix_fmt) )
1982                         cin_fmt = (int)av_get_pix_fmt(cin_pix_fmt);
1983         if( cin_fmt < 0 ) {
1984                 char video_codec[BCSTRLEN];  video_codec[0] = 0;
1985                 AVCodec *av_codec = !get_codec(video_codec, "video", asset->vcodec) ?
1986                         avcodec_find_encoder_by_name(video_codec) : 0;
1987                 if( av_codec && av_codec->pix_fmts ) {
1988                         if( 0 && edl ) { // frequently picks a bad answer
1989                                 int color_model = edl->session->color_model;
1990                                 int max_bits = BC_CModels::calculate_pixelsize(color_model) * 8;
1991                                 max_bits /= BC_CModels::components(color_model);
1992                                 cin_fmt = avcodec_find_best_pix_fmt_of_list(av_codec->pix_fmts,
1993                                         (BC_CModels::is_yuv(color_model) ?
1994                                                 (max_bits > 8 ? AV_PIX_FMT_AYUV64LE : AV_PIX_FMT_YUV444P) :
1995                                                 (max_bits > 8 ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB24)), 0, 0);
1996                         }
1997                         else
1998                                 cin_fmt = av_codec->pix_fmts[0];
1999                 }
2000         }
2001         if( cin_fmt < 0 ) cin_fmt = AV_PIX_FMT_YUV420P;
2002         const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get((AVPixelFormat)cin_fmt);
2003         const char *name = desc ? desc->name : _("None");
2004         strcpy(asset->ff_pixel_format, name);
2005
2006         char value[BCSTRLEN];
2007         if( !get_ff_option("cin_bitrate", options, value) )
2008                 asset->ff_video_bitrate = atoi(value);
2009         if( !get_ff_option("cin_quality", options, value) )
2010                 asset->ff_video_quality = atoi(value);
2011 }
2012
2013 void FFMPEG::load_video_options(Asset *asset, EDL *edl)
2014 {
2015         char options_path[BCTEXTLEN];
2016         set_option_path(options_path, "video/%s", asset->vcodec);
2017         if( !load_options(options_path,
2018                         asset->ff_video_options,
2019                         sizeof(asset->ff_video_options)) )
2020                 scan_video_options(asset, edl);
2021 }
2022
2023 void FFMPEG::scan_format_options(Asset *asset, EDL *edl)
2024 {
2025 }
2026
2027 void FFMPEG::load_format_options(Asset *asset, EDL *edl)
2028 {
2029         char options_path[BCTEXTLEN];
2030         set_option_path(options_path, "format/%s", asset->fformat);
2031         if( !load_options(options_path,
2032                         asset->ff_format_options,
2033                         sizeof(asset->ff_format_options)) )
2034                 scan_format_options(asset, edl);
2035 }
2036
2037 int FFMPEG::load_defaults(const char *path, const char *type,
2038                  char *codec, char *codec_options, int len)
2039 {
2040         char default_file[BCTEXTLEN];
2041         set_option_path(default_file, "%s/%s.dfl", path, type);
2042         FILE *fp = fopen(default_file,"r");
2043         if( !fp ) return 1;
2044         fgets(codec, BCSTRLEN, fp);
2045         char *cp = codec;
2046         while( *cp && *cp!='\n' ) ++cp;
2047         *cp = 0;
2048         while( len > 0 && fgets(codec_options, len, fp) ) {
2049                 int n = strlen(codec_options);
2050                 codec_options += n;  len -= n;
2051         }
2052         fclose(fp);
2053         set_option_path(default_file, "%s/%s", path, codec);
2054         return load_options(default_file, codec_options, len);
2055 }
2056
2057 void FFMPEG::set_asset_format(Asset *asset, EDL *edl, const char *text)
2058 {
2059         if( asset->format != FILE_FFMPEG ) return;
2060         if( text != asset->fformat )
2061                 strcpy(asset->fformat, text);
2062         if( !asset->ff_format_options[0] )
2063                 load_format_options(asset, edl);
2064         if( asset->audio_data && !asset->ff_audio_options[0] ) {
2065                 if( !load_defaults("audio", text, asset->acodec,
2066                                 asset->ff_audio_options, sizeof(asset->ff_audio_options)) )
2067                         scan_audio_options(asset, edl);
2068                 else
2069                         asset->audio_data = 0;
2070         }
2071         if( asset->video_data && !asset->ff_video_options[0] ) {
2072                 if( !load_defaults("video", text, asset->vcodec,
2073                                 asset->ff_video_options, sizeof(asset->ff_video_options)) )
2074                         scan_video_options(asset, edl);
2075                 else
2076                         asset->video_data = 0;
2077         }
2078 }
2079
2080 int FFMPEG::get_encoder(const char *options,
2081                 char *format, char *codec, char *bsfilter)
2082 {
2083         FILE *fp = fopen(options,"r");
2084         if( !fp ) {
2085                 eprintf(_("options open failed %s\n"),options);
2086                 return 1;
2087         }
2088         char line[BCTEXTLEN];
2089         if( !fgets(line, sizeof(line), fp) ||
2090             scan_encoder(line, format, codec, bsfilter) )
2091                 eprintf(_("format/codec not found %s\n"), options);
2092         fclose(fp);
2093         return 0;
2094 }
2095
2096 int FFMPEG::scan_encoder(const char *line,
2097                 char *format, char *codec, char *bsfilter)
2098 {
2099         format[0] = codec[0] = bsfilter[0] = 0;
2100         if( scan_option_line(line, format, codec) ) return 1;
2101         char *cp = codec;
2102         while( *cp && *cp != '|' ) ++cp;
2103         if( !*cp ) return 0;
2104         char *bp = cp;
2105         do { *bp-- = 0; } while( bp>=codec && (*bp==' ' || *bp == '\t' ) );
2106         while( *++cp && (*cp==' ' || *cp == '\t') );
2107         bp = bsfilter;
2108         for( int i=BCTEXTLEN; --i>0 && *cp; ) *bp++ = *cp++;
2109         *bp = 0;
2110         return 0;
2111 }
2112
2113 int FFMPEG::read_options(const char *options, AVDictionary *&opts, int skip)
2114 {
2115         FILE *fp = fopen(options,"r");
2116         if( !fp ) return 1;
2117         int ret = 0;
2118         while( !ret && --skip >= 0 ) {
2119                 int ch = getc(fp);
2120                 while( ch >= 0 && ch != '\n' ) ch = getc(fp);
2121                 if( ch < 0 ) ret = 1;
2122         }
2123         if( !ret )
2124                 ret = read_options(fp, options, opts);
2125         fclose(fp);
2126         return ret;
2127 }
2128
2129 int FFMPEG::scan_options(const char *options, AVDictionary *&opts, AVStream *st)
2130 {
2131         FILE *fp = fmemopen((void *)options,strlen(options),"r");
2132         if( !fp ) return 0;
2133         int ret = read_options(fp, options, opts);
2134         fclose(fp);
2135         if( !ret && st ) {
2136                 AVDictionaryEntry *tag = av_dict_get(opts, "id", NULL, 0);
2137                 if( tag ) st->id = strtol(tag->value,0,0);
2138         }
2139         return ret;
2140 }
2141
2142 FFCodecRemap::FFCodecRemap()
2143 {
2144         old_codec = 0;
2145         new_codec = 0;
2146 }
2147 FFCodecRemap::~FFCodecRemap()
2148 {
2149         delete [] old_codec;
2150         delete [] new_codec;
2151 }
2152
2153 int FFCodecRemaps::add(const char *val)
2154 {
2155         char old_codec[BCSTRLEN], new_codec[BCSTRLEN];
2156         if( sscanf(val, " %63[a-zA-z0-9_-] = %63[a-z0-9_-]",
2157                 &old_codec[0], &new_codec[0]) != 2 ) return 1;
2158         FFCodecRemap &remap = append();
2159         remap.old_codec = cstrdup(old_codec);
2160         remap.new_codec = cstrdup(new_codec);
2161         return 0;
2162 }
2163
2164
2165 int FFCodecRemaps::update(AVCodecID &codec_id, AVCodec *&decoder)
2166 {
2167         AVCodec *codec = avcodec_find_decoder(codec_id);
2168         if( !codec ) return -1;
2169         const char *name = codec->name;
2170         FFCodecRemaps &map = *this;
2171         int k = map.size();
2172         while( --k >= 0 && strcmp(map[k].old_codec, name) );
2173         if( k < 0 ) return 1;
2174         const char *new_codec = map[k].new_codec;
2175         codec = avcodec_find_decoder_by_name(new_codec);
2176         if( !codec ) return -1;
2177         decoder = codec;
2178         return 0;
2179 }
2180
2181 int FFMPEG::read_options(FILE *fp, const char *options, AVDictionary *&opts)
2182 {
2183         int ret = 0, no = 0;
2184         char line[BCTEXTLEN];
2185         while( !ret && fgets(line, sizeof(line), fp) ) {
2186                 line[sizeof(line)-1] = 0;
2187                 if( line[0] == '#' ) continue;
2188                 if( line[0] == '\n' ) continue;
2189                 char key[BCSTRLEN], val[BCTEXTLEN];
2190                 if( scan_option_line(line, key, val) ) {
2191                         eprintf(_("err reading %s: line %d\n"), options, no);
2192                         ret = 1;
2193                 }
2194                 if( !ret ) {
2195                         if( !strcmp(key, "duration") )
2196                                 opt_duration = strtod(val, 0);
2197                         else if( !strcmp(key, "video_decoder") )
2198                                 opt_video_decoder = cstrdup(val);
2199                         else if( !strcmp(key, "audio_decoder") )
2200                                 opt_audio_decoder = cstrdup(val);
2201                         else if( !strcmp(key, "remap_video_decoder") )
2202                                 video_codec_remaps.add(val);
2203                         else if( !strcmp(key, "remap_audio_decoder") )
2204                                 audio_codec_remaps.add(val);
2205                         else if( !strcmp(key, "video_filter") )
2206                                 opt_video_filter = cstrdup(val);
2207                         else if( !strcmp(key, "audio_filter") )
2208                                 opt_audio_filter = cstrdup(val);
2209                         else if( !strcmp(key, "cin_hw_dev") )
2210                                 opt_hw_dev = cstrdup(val);
2211                         else if( !strcmp(key, "loglevel") )
2212                                 set_loglevel(val);
2213                         else
2214                                 av_dict_set(&opts, key, val, 0);
2215                 }
2216         }
2217         return ret;
2218 }
2219
2220 int FFMPEG::load_options(const char *options, AVDictionary *&opts)
2221 {
2222         char option_path[BCTEXTLEN];
2223         set_option_path(option_path, "%s", options);
2224         return read_options(option_path, opts);
2225 }
2226
2227 int FFMPEG::load_options(const char *path, char *bfr, int len)
2228 {
2229         *bfr = 0;
2230         FILE *fp = fopen(path, "r");
2231         if( !fp ) return 1;
2232         fgets(bfr, len, fp); // skip hdr
2233         len = fread(bfr, 1, len-1, fp);
2234         if( len < 0 ) len = 0;
2235         bfr[len] = 0;
2236         fclose(fp);
2237         return 0;
2238 }
2239
2240 void FFMPEG::set_loglevel(const char *ap)
2241 {
2242         if( !ap || !*ap ) return;
2243         const struct {
2244                 const char *name;
2245                 int level;
2246         } log_levels[] = {
2247                 { "quiet"  , AV_LOG_QUIET   },
2248                 { "panic"  , AV_LOG_PANIC   },
2249                 { "fatal"  , AV_LOG_FATAL   },
2250                 { "error"  , AV_LOG_ERROR   },
2251                 { "warning", AV_LOG_WARNING },
2252                 { "info"   , AV_LOG_INFO    },
2253                 { "verbose", AV_LOG_VERBOSE },
2254                 { "debug"  , AV_LOG_DEBUG   },
2255         };
2256         for( int i=0; i<(int)(sizeof(log_levels)/sizeof(log_levels[0])); ++i ) {
2257                 if( !strcmp(log_levels[i].name, ap) ) {
2258                         av_log_set_level(log_levels[i].level);
2259                         return;
2260                 }
2261         }
2262         av_log_set_level(atoi(ap));
2263 }
2264
2265 double FFMPEG::to_secs(int64_t time, AVRational time_base)
2266 {
2267         double base_time = time == AV_NOPTS_VALUE ? 0 :
2268                 av_rescale_q(time, time_base, AV_TIME_BASE_Q);
2269         return base_time / AV_TIME_BASE;
2270 }
2271
2272 int FFMPEG::info(char *text, int len)
2273 {
2274         if( len <= 0 ) return 0;
2275         decode_activate();
2276 #define report(s...) do { int n = snprintf(cp,len,s); cp += n;  len -= n; } while(0)
2277         char *cp = text;
2278         report("format: %s\n",fmt_ctx->iformat->name);
2279         if( ffvideo.size() > 0 )
2280                 report("\n%d video stream%s\n",ffvideo.size(), ffvideo.size()!=1 ? "s" : "");
2281         for( int vidx=0; vidx<ffvideo.size(); ++vidx ) {
2282                 const char *unkn = _("(unkn)");
2283                 FFVideoStream *vid = ffvideo[vidx];
2284                 AVStream *st = vid->st;
2285                 AVCodecID codec_id = st->codecpar->codec_id;
2286                 report(_("vid%d (%d),  id 0x%06x:\n"), vid->idx, vid->fidx, codec_id);
2287                 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
2288                 report("  video%d %s ", vidx+1, desc ? desc->name : unkn);
2289                 report(" %dx%d %5.2f", vid->width, vid->height, vid->frame_rate);
2290                 AVPixelFormat pix_fmt = (AVPixelFormat)st->codecpar->format;
2291                 const char *pfn = av_get_pix_fmt_name(pix_fmt);
2292                 report(" pix %s\n", pfn ? pfn : unkn);
2293                 enum AVColorSpace space = st->codecpar->color_space;
2294                 const char *nm = av_color_space_name(space);
2295                 report("    color space:%s", nm ? nm : unkn);
2296                 enum AVColorRange range = st->codecpar->color_range;
2297                 const char *rg = av_color_range_name(range);
2298                 report("/ range:%s\n", rg ? rg : unkn);
2299                 double secs = to_secs(st->duration, st->time_base);
2300                 int64_t length = secs * vid->frame_rate + 0.5;
2301                 double ofs = to_secs((vid->nudge - st->start_time), st->time_base);
2302                 int64_t nudge = ofs * vid->frame_rate;
2303                 int ch = nudge >= 0 ? '+' : (nudge=-nudge, '-');
2304                 report("    %jd%c%jd frms %0.2f secs", length,ch,nudge, secs);
2305                 int hrs = secs/3600;  secs -= hrs*3600;
2306                 int mins = secs/60;  secs -= mins*60;
2307                 report("  %d:%02d:%05.2f\n", hrs, mins, secs);
2308         }
2309         if( ffaudio.size() > 0 )
2310                 report("\n%d audio stream%s\n",ffaudio.size(), ffaudio.size()!=1 ? "s" : "");
2311         for( int aidx=0; aidx<ffaudio.size(); ++aidx ) {
2312                 FFAudioStream *aud = ffaudio[aidx];
2313                 AVStream *st = aud->st;
2314                 AVCodecID codec_id = st->codecpar->codec_id;
2315                 report(_("aud%d (%d),  id 0x%06x:\n"), aud->idx, aud->fidx, codec_id);
2316                 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
2317                 int nch = aud->channels, ch0 = aud->channel0+1;
2318                 report("  audio%d-%d %s", ch0, ch0+nch-1, desc ? desc->name : " (unkn)");
2319                 AVSampleFormat sample_fmt = (AVSampleFormat)st->codecpar->format;
2320                 const char *fmt = av_get_sample_fmt_name(sample_fmt);
2321                 report(" %s %d", fmt, aud->sample_rate);
2322                 int sample_bits = av_get_bits_per_sample(codec_id);
2323                 report(" %dbits\n", sample_bits);
2324                 double secs = to_secs(st->duration, st->time_base);
2325                 int64_t length = secs * aud->sample_rate + 0.5;
2326                 double ofs = to_secs((aud->nudge - st->start_time), st->time_base);
2327                 int64_t nudge = ofs * aud->sample_rate;
2328                 int ch = nudge >= 0 ? '+' : (nudge=-nudge, '-');
2329                 report("    %jd%c%jd smpl %0.2f secs", length,ch,nudge, secs);
2330                 int hrs = secs/3600;  secs -= hrs*3600;
2331                 int mins = secs/60;  secs -= mins*60;
2332                 report("  %d:%02d:%05.2f\n", hrs, mins, secs);
2333         }
2334         if( fmt_ctx->nb_programs > 0 )
2335                 report("\n%d program%s\n",fmt_ctx->nb_programs, fmt_ctx->nb_programs!=1 ? "s" : "");
2336         for( int i=0; i<(int)fmt_ctx->nb_programs; ++i ) {
2337                 report("program %d", i+1);
2338                 AVProgram *pgrm = fmt_ctx->programs[i];
2339                 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
2340                         int idx = pgrm->stream_index[j];
2341                         int vidx = ffvideo.size();
2342                         while( --vidx>=0 && ffvideo[vidx]->fidx != idx );
2343                         if( vidx >= 0 ) {
2344                                 report(", vid%d", vidx);
2345                                 continue;
2346                         }
2347                         int aidx = ffaudio.size();
2348                         while( --aidx>=0 && ffaudio[aidx]->fidx != idx );
2349                         if( aidx >= 0 ) {
2350                                 report(", aud%d", aidx);
2351                                 continue;
2352                         }
2353                         report(", (%d)", pgrm->stream_index[j]);
2354                 }
2355                 report("\n");
2356         }
2357         report("\n");
2358         AVDictionaryEntry *tag = 0;
2359         while ((tag = av_dict_get(fmt_ctx->metadata, "", tag, AV_DICT_IGNORE_SUFFIX)))
2360                 report("%s=%s\n", tag->key, tag->value);
2361
2362         if( !len ) --cp;
2363         *cp = 0;
2364         return cp - text;
2365 #undef report
2366 }
2367
2368
2369 int FFMPEG::init_decoder(const char *filename)
2370 {
2371         ff_lock("FFMPEG::init_decoder");
2372         av_register_all();
2373         char file_opts[BCTEXTLEN];
2374         strcpy(file_opts, filename);
2375         char *bp = strrchr(file_opts, '/');
2376         if( !bp ) bp = file_opts;
2377         char *sp = strrchr(bp, '.');
2378         if( !sp ) sp = bp + strlen(bp);
2379         FILE *fp = 0;
2380         AVInputFormat *ifmt = 0;
2381         if( sp ) {
2382                 strcpy(sp, ".opts");
2383                 fp = fopen(file_opts, "r");
2384         }
2385         if( fp ) {
2386                 read_options(fp, file_opts, opts);
2387                 fclose(fp);
2388                 AVDictionaryEntry *tag;
2389                 if( (tag=av_dict_get(opts, "format", NULL, 0)) != 0 ) {
2390                         ifmt = av_find_input_format(tag->value);
2391                 }
2392         }
2393         else
2394                 load_options("decode.opts", opts);
2395         AVDictionary *fopts = 0;
2396         av_dict_copy(&fopts, opts, 0);
2397         int ret = avformat_open_input(&fmt_ctx, filename, ifmt, &fopts);
2398         av_dict_free(&fopts);
2399         if( ret >= 0 )
2400                 ret = avformat_find_stream_info(fmt_ctx, NULL);
2401         if( !ret ) {
2402                 decoding = -1;
2403         }
2404         ff_unlock();
2405         return !ret ? 0 : 1;
2406 }
2407
2408 int FFMPEG::open_decoder()
2409 {
2410         struct stat st;
2411         if( stat(fmt_ctx->url, &st) < 0 ) {
2412                 eprintf(_("can't stat file: %s\n"), fmt_ctx->url);
2413                 return 1;
2414         }
2415
2416         int64_t file_bits = 8 * st.st_size;
2417         if( !fmt_ctx->bit_rate && opt_duration > 0 )
2418                 fmt_ctx->bit_rate = file_bits / opt_duration;
2419
2420         int estimated = 0;
2421         if( fmt_ctx->bit_rate > 0 ) {
2422                 for( int i=0; i<(int)fmt_ctx->nb_streams; ++i ) {
2423                         AVStream *st = fmt_ctx->streams[i];
2424                         if( st->duration != AV_NOPTS_VALUE ) continue;
2425                         if( st->time_base.num > INT64_MAX / fmt_ctx->bit_rate ) continue;
2426                         st->duration = av_rescale(file_bits, st->time_base.den,
2427                                 fmt_ctx->bit_rate * (int64_t) st->time_base.num);
2428                         estimated = 1;
2429                 }
2430         }
2431         if( estimated && !(fflags & FF_ESTM_TIMES) ) {
2432                 fflags |= FF_ESTM_TIMES;
2433                 printf("FFMPEG::open_decoder: some stream times estimated: %s\n",
2434                         fmt_ctx->url);
2435         }
2436
2437         ff_lock("FFMPEG::open_decoder");
2438         int ret = 0, bad_time = 0;
2439         for( int i=0; !ret && i<(int)fmt_ctx->nb_streams; ++i ) {
2440                 AVStream *st = fmt_ctx->streams[i];
2441                 if( st->duration == AV_NOPTS_VALUE ) bad_time = 1;
2442                 AVCodecParameters *avpar = st->codecpar;
2443                 const AVCodecDescriptor *codec_desc = avcodec_descriptor_get(avpar->codec_id);
2444                 if( !codec_desc ) continue;
2445                 switch( avpar->codec_type ) {
2446                 case AVMEDIA_TYPE_VIDEO: {
2447                         if( avpar->width < 1 ) continue;
2448                         if( avpar->height < 1 ) continue;
2449                         AVRational framerate = av_guess_frame_rate(fmt_ctx, st, 0);
2450                         if( framerate.num < 1 ) continue;
2451                         has_video = 1;
2452                         int vidx = ffvideo.size();
2453                         FFVideoStream *vid = new FFVideoStream(this, st, vidx, i);
2454                         vstrm_index.append(ffidx(vidx, 0));
2455                         ffvideo.append(vid);
2456                         vid->width = avpar->width;
2457                         vid->height = avpar->height;
2458                         vid->frame_rate = !framerate.den ? 0 : (double)framerate.num / framerate.den;
2459                         switch( avpar->color_range ) {
2460                         case AVCOL_RANGE_MPEG:
2461                                 vid->color_range = BC_COLORS_MPEG;
2462                                 break;
2463                         case AVCOL_RANGE_JPEG:
2464                                 vid->color_range = BC_COLORS_JPEG;
2465                                 break;
2466                         default:
2467                                 vid->color_range = !file_base ? BC_COLORS_JPEG :
2468                                         file_base->file->preferences->yuv_color_range;
2469                                 break;
2470                         }
2471                         switch( avpar->color_space ) {
2472                         case AVCOL_SPC_BT470BG:
2473                         case AVCOL_SPC_SMPTE170M:
2474                                 vid->color_space = BC_COLORS_BT601;
2475                                 break;
2476                         case AVCOL_SPC_BT709:
2477                                 vid->color_space = BC_COLORS_BT709;
2478                                 break;
2479                         case AVCOL_SPC_BT2020_NCL:
2480                         case AVCOL_SPC_BT2020_CL:
2481                                 vid->color_space = BC_COLORS_BT2020;
2482                                 break;
2483                         default:
2484                                 vid->color_space = !file_base ? BC_COLORS_BT601 :
2485                                         file_base->file->preferences->yuv_color_space;
2486                                 break;
2487                         }
2488                         double secs = to_secs(st->duration, st->time_base);
2489                         vid->length = secs * vid->frame_rate;
2490                         vid->aspect_ratio = (double)st->sample_aspect_ratio.num / st->sample_aspect_ratio.den;
2491                         vid->nudge = st->start_time;
2492                         vid->reading = -1;
2493                         if( opt_video_filter )
2494                                 ret = vid->create_filter(opt_video_filter, avpar);
2495                         break; }
2496                 case AVMEDIA_TYPE_AUDIO: {
2497                         if( avpar->channels < 1 ) continue;
2498                         if( avpar->sample_rate < 1 ) continue;
2499                         has_audio = 1;
2500                         int aidx = ffaudio.size();
2501                         FFAudioStream *aud = new FFAudioStream(this, st, aidx, i);
2502                         ffaudio.append(aud);
2503                         aud->channel0 = astrm_index.size();
2504                         aud->channels = avpar->channels;
2505                         for( int ch=0; ch<aud->channels; ++ch )
2506                                 astrm_index.append(ffidx(aidx, ch));
2507                         aud->sample_rate = avpar->sample_rate;
2508                         double secs = to_secs(st->duration, st->time_base);
2509                         aud->length = secs * aud->sample_rate;
2510                         aud->init_swr(aud->channels, avpar->format, aud->sample_rate);
2511                         aud->nudge = st->start_time;
2512                         aud->reading = -1;
2513                         if( opt_audio_filter )
2514                                 ret = aud->create_filter(opt_audio_filter, avpar);
2515                         break; }
2516                 default: break;
2517                 }
2518         }
2519         if( bad_time && !(fflags & FF_BAD_TIMES) ) {
2520                 fflags |= FF_BAD_TIMES;
2521                 printf(_("FFMPEG::open_decoder: some stream have bad times: %s\n"),
2522                         fmt_ctx->url);
2523         }
2524         ff_unlock();
2525         return ret < 0 ? -1 : 0;
2526 }
2527
2528
2529 int FFMPEG::init_encoder(const char *filename)
2530 {
2531 // try access first for named pipes
2532         int ret = access(filename, W_OK);
2533         if( ret ) {
2534                 int fd = ::open(filename,O_WRONLY);
2535                 if( fd < 0 ) fd = open(filename,O_WRONLY+O_CREAT,0666);
2536                 if( fd >= 0 ) { close(fd);  ret = 0; }
2537         }
2538         if( ret ) {
2539                 eprintf(_("bad file path: %s\n"), filename);
2540                 return 1;
2541         }
2542         ret = get_file_format();
2543         if( ret > 0 ) {
2544                 eprintf(_("bad file format: %s\n"), filename);
2545                 return 1;
2546         }
2547         if( ret < 0 ) {
2548                 eprintf(_("mismatch audio/video file format: %s\n"), filename);
2549                 return 1;
2550         }
2551         ff_lock("FFMPEG::init_encoder");
2552         av_register_all();
2553         char format[BCSTRLEN];
2554         if( get_format(format, "format", file_format) )
2555                 strcpy(format, file_format);
2556         avformat_alloc_output_context2(&fmt_ctx, 0, format, filename);
2557         if( !fmt_ctx ) {
2558                 eprintf(_("failed: %s\n"), filename);
2559                 ret = 1;
2560         }
2561         if( !ret ) {
2562                 encoding = -1;
2563                 load_options("encode.opts", opts);
2564         }
2565         ff_unlock();
2566         return ret;
2567 }
2568
2569 int FFMPEG::open_encoder(const char *type, const char *spec)
2570 {
2571
2572         Asset *asset = file_base->asset;
2573         char *filename = asset->path;
2574         AVDictionary *sopts = 0;
2575         av_dict_copy(&sopts, opts, 0);
2576         char option_path[BCTEXTLEN];
2577         set_option_path(option_path, "%s/%s.opts", type, type);
2578         read_options(option_path, sopts);
2579         get_option_path(option_path, type, spec);
2580         char format_name[BCSTRLEN], codec_name[BCTEXTLEN], bsfilter[BCTEXTLEN];
2581         if( get_encoder(option_path, format_name, codec_name, bsfilter) ) {
2582                 eprintf(_("get_encoder failed %s:%s\n"), option_path, filename);
2583                 return 1;
2584         }
2585
2586 #ifdef HAVE_DV
2587         if( !strcmp(codec_name, CODEC_TAG_DVSD) ) strcpy(codec_name, "dv");
2588 #endif
2589         else if( !strcmp(codec_name, CODEC_TAG_MJPEG) ) strcpy(codec_name, "mjpeg");
2590         else if( !strcmp(codec_name, CODEC_TAG_JPEG) ) strcpy(codec_name, "jpeg");
2591
2592         int ret = 0;
2593         ff_lock("FFMPEG::open_encoder");
2594         FFStream *fst = 0;
2595         AVStream *st = 0;
2596         AVCodecContext *ctx = 0;
2597
2598         const AVCodecDescriptor *codec_desc = 0;
2599         AVCodec *codec = avcodec_find_encoder_by_name(codec_name);
2600         if( !codec ) {
2601                 eprintf(_("cant find codec %s:%s\n"), codec_name, filename);
2602                 ret = 1;
2603         }
2604         if( !ret ) {
2605                 codec_desc = avcodec_descriptor_get(codec->id);
2606                 if( !codec_desc ) {
2607                         eprintf(_("unknown codec %s:%s\n"), codec_name, filename);
2608                         ret = 1;
2609                 }
2610         }
2611         if( !ret ) {
2612                 st = avformat_new_stream(fmt_ctx, 0);
2613                 if( !st ) {
2614                         eprintf(_("cant create stream %s:%s\n"), codec_name, filename);
2615                         ret = 1;
2616                 }
2617         }
2618         if( !ret ) {
2619                 switch( codec_desc->type ) {
2620                 case AVMEDIA_TYPE_AUDIO: {
2621                         if( has_audio ) {
2622                                 eprintf(_("duplicate audio %s:%s\n"), codec_name, filename);
2623                                 ret = 1;
2624                                 break;
2625                         }
2626                         if( scan_options(asset->ff_audio_options, sopts, st) ) {
2627                                 eprintf(_("bad audio options %s:%s\n"), codec_name, filename);
2628                                 ret = 1;
2629                                 break;
2630                         }
2631                         has_audio = 1;
2632                         ctx = avcodec_alloc_context3(codec);
2633                         if( asset->ff_audio_bitrate > 0 ) {
2634                                 ctx->bit_rate = asset->ff_audio_bitrate;
2635                                 char arg[BCSTRLEN];
2636                                 sprintf(arg, "%d", asset->ff_audio_bitrate);
2637                                 av_dict_set(&sopts, "b", arg, 0);
2638                         }
2639                         else if( asset->ff_audio_quality >= 0 ) {
2640                                 ctx->global_quality = asset->ff_audio_quality * FF_QP2LAMBDA;
2641                                 ctx->qmin    = ctx->qmax =  asset->ff_audio_quality;
2642                                 ctx->mb_lmin = ctx->qmin * FF_QP2LAMBDA;
2643                                 ctx->mb_lmax = ctx->qmax * FF_QP2LAMBDA;
2644                                 ctx->flags |= AV_CODEC_FLAG_QSCALE;
2645                                 char arg[BCSTRLEN];
2646                                 av_dict_set(&sopts, "flags", "+qscale", 0);
2647                                 sprintf(arg, "%d", asset->ff_audio_quality);
2648                                 av_dict_set(&sopts, "qscale", arg, 0);
2649                                 sprintf(arg, "%d", ctx->global_quality);
2650                                 av_dict_set(&sopts, "global_quality", arg, 0);
2651                         }
2652                         int aidx = ffaudio.size();
2653                         int fidx = aidx + ffvideo.size();
2654                         FFAudioStream *aud = new FFAudioStream(this, st, aidx, fidx);
2655                         aud->avctx = ctx;  ffaudio.append(aud);  fst = aud;
2656                         aud->sample_rate = asset->sample_rate;
2657                         ctx->channels = aud->channels = asset->channels;
2658                         for( int ch=0; ch<aud->channels; ++ch )
2659                                 astrm_index.append(ffidx(aidx, ch));
2660                         ctx->channel_layout =  av_get_default_channel_layout(ctx->channels);
2661                         ctx->sample_rate = check_sample_rate(codec, asset->sample_rate);
2662                         if( !ctx->sample_rate ) {
2663                                 eprintf(_("check_sample_rate failed %s\n"), filename);
2664                                 ret = 1;
2665                                 break;
2666                         }
2667                         ctx->time_base = st->time_base = (AVRational){1, aud->sample_rate};
2668                         AVSampleFormat sample_fmt = av_get_sample_fmt(asset->ff_sample_format);
2669                         if( sample_fmt == AV_SAMPLE_FMT_NONE )
2670                                 sample_fmt = codec->sample_fmts ? codec->sample_fmts[0] : AV_SAMPLE_FMT_S16;
2671                         ctx->sample_fmt = sample_fmt;
2672                         uint64_t layout = av_get_default_channel_layout(ctx->channels);
2673                         aud->resample_context = swr_alloc_set_opts(NULL,
2674                                 layout, ctx->sample_fmt, aud->sample_rate,
2675                                 layout, AV_SAMPLE_FMT_FLT, ctx->sample_rate,
2676                                 0, NULL);
2677                         swr_init(aud->resample_context);
2678                         aud->writing = -1;
2679                         break; }
2680                 case AVMEDIA_TYPE_VIDEO: {
2681                         if( has_video ) {
2682                                 eprintf(_("duplicate video %s:%s\n"), codec_name, filename);
2683                                 ret = 1;
2684                                 break;
2685                         }
2686                         if( scan_options(asset->ff_video_options, sopts, st) ) {
2687                                 eprintf(_("bad video options %s:%s\n"), codec_name, filename);
2688                                 ret = 1;
2689                                 break;
2690                         }
2691                         has_video = 1;
2692                         ctx = avcodec_alloc_context3(codec);
2693                         if( asset->ff_video_bitrate > 0 ) {
2694                                 ctx->bit_rate = asset->ff_video_bitrate;
2695                                 char arg[BCSTRLEN];
2696                                 sprintf(arg, "%d", asset->ff_video_bitrate);
2697                                 av_dict_set(&sopts, "b", arg, 0);
2698                         }
2699                         else if( asset->ff_video_quality >= 0 ) {
2700                                 ctx->global_quality = asset->ff_video_quality * FF_QP2LAMBDA;
2701                                 ctx->qmin    = ctx->qmax =  asset->ff_video_quality;
2702                                 ctx->mb_lmin = ctx->qmin * FF_QP2LAMBDA;
2703                                 ctx->mb_lmax = ctx->qmax * FF_QP2LAMBDA;
2704                                 ctx->flags |= AV_CODEC_FLAG_QSCALE;
2705                                 char arg[BCSTRLEN];
2706                                 av_dict_set(&sopts, "flags", "+qscale", 0);
2707                                 sprintf(arg, "%d", asset->ff_video_quality);
2708                                 av_dict_set(&sopts, "qscale", arg, 0);
2709                                 sprintf(arg, "%d", ctx->global_quality);
2710                                 av_dict_set(&sopts, "global_quality", arg, 0);
2711                         }
2712                         int vidx = ffvideo.size();
2713                         int fidx = vidx + ffaudio.size();
2714                         FFVideoStream *vid = new FFVideoStream(this, st, vidx, fidx);
2715                         vstrm_index.append(ffidx(vidx, 0));
2716                         vid->avctx = ctx;  ffvideo.append(vid);  fst = vid;
2717                         vid->width = asset->width;
2718                         vid->height = asset->height;
2719                         vid->frame_rate = asset->frame_rate;
2720                         if( (vid->color_range = asset->ff_color_range) < 0 )
2721                                 vid->color_range = file_base->file->preferences->yuv_color_range;
2722                         switch( vid->color_range ) {
2723                         case BC_COLORS_MPEG:  ctx->color_range = AVCOL_RANGE_MPEG;  break;
2724                         case BC_COLORS_JPEG:  ctx->color_range = AVCOL_RANGE_JPEG;  break;
2725                         }
2726                         if( (vid->color_space = asset->ff_color_space) < 0 )
2727                                 vid->color_space = file_base->file->preferences->yuv_color_space;
2728                         switch( vid->color_space ) {
2729                         case BC_COLORS_BT601:  ctx->colorspace = AVCOL_SPC_SMPTE170M;  break;
2730                         case BC_COLORS_BT709:  ctx->colorspace = AVCOL_SPC_BT709;      break;
2731                         case BC_COLORS_BT2020: ctx->colorspace = AVCOL_SPC_BT2020_NCL; break;
2732                         }
2733                         AVPixelFormat pix_fmt = av_get_pix_fmt(asset->ff_pixel_format);
2734                         if( opt_hw_dev != 0 ) {
2735                                 AVHWDeviceType hw_type = vid->encode_hw_activate(opt_hw_dev);
2736                                 switch( hw_type ) {
2737                                 case AV_HWDEVICE_TYPE_VAAPI:
2738                                         pix_fmt = AV_PIX_FMT_VAAPI;
2739                                         break;
2740                                 case AV_HWDEVICE_TYPE_NONE:
2741                                 default: break;
2742                                 }
2743                         }
2744                         if( pix_fmt == AV_PIX_FMT_NONE )
2745                                 pix_fmt = codec->pix_fmts ? codec->pix_fmts[0] : AV_PIX_FMT_YUV420P;
2746                         ctx->pix_fmt = pix_fmt;
2747
2748                         const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
2749                         int mask_w = (1<<desc->log2_chroma_w)-1;
2750                         ctx->width = (vid->width+mask_w) & ~mask_w;
2751                         int mask_h = (1<<desc->log2_chroma_h)-1;
2752                         ctx->height = (vid->height+mask_h) & ~mask_h;
2753                         ctx->sample_aspect_ratio = to_sample_aspect_ratio(asset);
2754                         AVRational frame_rate = check_frame_rate(codec, vid->frame_rate);
2755                         if( !frame_rate.num || !frame_rate.den ) {
2756                                 eprintf(_("check_frame_rate failed %s\n"), filename);
2757                                 ret = 1;
2758                                 break;
2759                         }
2760                         av_reduce(&frame_rate.num, &frame_rate.den,
2761                                 frame_rate.num, frame_rate.den, INT_MAX);
2762                         ctx->framerate = (AVRational) { frame_rate.num, frame_rate.den };
2763                         ctx->time_base = (AVRational) { frame_rate.den, frame_rate.num };
2764                         st->avg_frame_rate = frame_rate;
2765                         st->time_base = ctx->time_base;
2766                         vid->writing = -1;
2767                         vid->interlaced = asset->interlace_mode == ILACE_MODE_TOP_FIRST ||
2768                                 asset->interlace_mode == ILACE_MODE_BOTTOM_FIRST ? 1 : 0;
2769                         vid->top_field_first = asset->interlace_mode == ILACE_MODE_TOP_FIRST ? 1 : 0;
2770                         break; }
2771                 default:
2772                         eprintf(_("not audio/video, %s:%s\n"), codec_name, filename);
2773                         ret = 1;
2774                 }
2775
2776                 if( ctx ) {
2777                         AVDictionaryEntry *tag;
2778                         if( (tag=av_dict_get(sopts, "cin_stats_filename", NULL, 0)) != 0 ) {
2779                                 char suffix[BCSTRLEN];  sprintf(suffix,"-%d.log",fst->fidx);
2780                                 fst->stats_filename = cstrcat(2, tag->value, suffix);
2781                         }
2782                         if( (tag=av_dict_get(sopts, "flags", NULL, 0)) != 0 ) {
2783                                 int pass = fst->pass;
2784                                 char *cp = tag->value;
2785                                 while( *cp ) {
2786                                         int ch = *cp++, pfx = ch=='-' ? -1 : ch=='+' ? 1 : 0;
2787                                         if( !isalnum(!pfx ? ch : (ch=*cp++)) ) continue;
2788                                         char id[BCSTRLEN], *bp = id, *ep = bp+sizeof(id)-1;
2789                                         for( *bp++=ch; isalnum(ch=*cp); ++cp )
2790                                                 if( bp < ep ) *bp++ = ch;
2791                                         *bp = 0;
2792                                         if( !strcmp(id, "pass1") ) {
2793                                                 pass = pfx<0 ? (pass&~1) : pfx>0 ? (pass|1) : 1;
2794                                         }
2795                                         else if( !strcmp(id, "pass2") ) {
2796                                                 pass = pfx<0 ? (pass&~2) : pfx>0 ? (pass|2) : 2;
2797                                         }
2798                                 }
2799                                 if( (fst->pass=pass) ) {
2800                                         if( pass & 1 ) ctx->flags |= AV_CODEC_FLAG_PASS1;
2801                                         if( pass & 2 ) ctx->flags |= AV_CODEC_FLAG_PASS2;
2802                                 }
2803                         }
2804                 }
2805         }
2806         if( !ret ) {
2807                 if( fmt_ctx->oformat->flags & AVFMT_GLOBALHEADER )
2808                         ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
2809                 if( fst->stats_filename && (ret=fst->init_stats_file()) )
2810                         eprintf(_("error: stats file = %s\n"), fst->stats_filename);
2811         }
2812         if( !ret ) {
2813                 av_dict_set(&sopts, "cin_bitrate", 0, 0);
2814                 av_dict_set(&sopts, "cin_quality", 0, 0);
2815
2816                 if( !av_dict_get(sopts, "threads", NULL, 0) )
2817                         ctx->thread_count = ff_cpus();
2818                 ret = avcodec_open2(ctx, codec, &sopts);
2819                 if( ret >= 0 ) {
2820                         ret = avcodec_parameters_from_context(st->codecpar, ctx);
2821                         if( ret < 0 )
2822                                 fprintf(stderr, "Could not copy the stream parameters\n");
2823                 }
2824                 if( ret >= 0 ) {
2825 _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
2826                         ret = avcodec_copy_context(st->codec, ctx);
2827 _Pragma("GCC diagnostic warning \"-Wdeprecated-declarations\"")
2828                         if( ret < 0 )
2829                                 fprintf(stderr, "Could not copy the stream context\n");
2830                 }
2831                 if( ret < 0 ) {
2832                         ff_err(ret,"FFMPEG::open_encoder");
2833                         eprintf(_("open failed %s:%s\n"), codec_name, filename);
2834                         ret = 1;
2835                 }
2836                 else
2837                         ret = 0;
2838         }
2839         if( !ret && fst && bsfilter[0] ) {
2840                 ret = av_bsf_list_parse_str(bsfilter, &fst->bsfc);
2841                 if( ret < 0 ) {
2842                         ff_err(ret,"FFMPEG::open_encoder");
2843                         eprintf(_("bitstream filter failed %s:\n%s\n"), filename, bsfilter);
2844                         ret = 1;
2845                 }
2846                 else
2847                         ret = 0;
2848         }
2849
2850         if( !ret )
2851                 start_muxer();
2852
2853         ff_unlock();
2854         av_dict_free(&sopts);
2855         return ret;
2856 }
2857
2858 int FFMPEG::close_encoder()
2859 {
2860         stop_muxer();
2861         if( encoding > 0 ) {
2862                 av_write_trailer(fmt_ctx);
2863                 if( !(fmt_ctx->flags & AVFMT_NOFILE) )
2864                         avio_closep(&fmt_ctx->pb);
2865         }
2866         encoding = 0;
2867         return 0;
2868 }
2869
2870 int FFMPEG::decode_activate()
2871 {
2872         if( decoding < 0 ) {
2873                 decoding = 0;
2874                 for( int vidx=0; vidx<ffvideo.size(); ++vidx )
2875                         ffvideo[vidx]->nudge = AV_NOPTS_VALUE;
2876                 for( int aidx=0; aidx<ffaudio.size(); ++aidx )
2877                         ffaudio[aidx]->nudge = AV_NOPTS_VALUE;
2878                 // set nudges for each program stream set
2879                 const int64_t min_nudge = INT64_MIN+1;
2880                 int npgrms = fmt_ctx->nb_programs;
2881                 for( int i=0; i<npgrms; ++i ) {
2882                         AVProgram *pgrm = fmt_ctx->programs[i];
2883                         // first start time video stream
2884                         int64_t vstart_time = min_nudge, astart_time = min_nudge;
2885                         for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
2886                                 int fidx = pgrm->stream_index[j];
2887                                 AVStream *st = fmt_ctx->streams[fidx];
2888                                 AVCodecParameters *avpar = st->codecpar;
2889                                 if( avpar->codec_type == AVMEDIA_TYPE_VIDEO ) {
2890                                         if( st->start_time == AV_NOPTS_VALUE ) continue;
2891                                         if( vstart_time < st->start_time )
2892                                                 vstart_time = st->start_time;
2893                                         continue;
2894                                 }
2895                                 if( avpar->codec_type == AVMEDIA_TYPE_AUDIO ) {
2896                                         if( st->start_time == AV_NOPTS_VALUE ) continue;
2897                                         if( astart_time < st->start_time )
2898                                                 astart_time = st->start_time;
2899                                         continue;
2900                                 }
2901                         }
2902                         //since frame rate is much more grainy than sample rate, it is better to
2903                         // align using video, so that total absolute error is minimized.
2904                         int64_t nudge = vstart_time > min_nudge ? vstart_time :
2905                                 astart_time > min_nudge ? astart_time : AV_NOPTS_VALUE;
2906                         for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
2907                                 int fidx = pgrm->stream_index[j];
2908                                 AVStream *st = fmt_ctx->streams[fidx];
2909                                 AVCodecParameters *avpar = st->codecpar;
2910                                 if( avpar->codec_type == AVMEDIA_TYPE_VIDEO ) {
2911                                         for( int k=0; k<ffvideo.size(); ++k ) {
2912                                                 if( ffvideo[k]->fidx != fidx ) continue;
2913                                                 ffvideo[k]->nudge = nudge;
2914                                         }
2915                                         continue;
2916                                 }
2917                                 if( avpar->codec_type == AVMEDIA_TYPE_AUDIO ) {
2918                                         for( int k=0; k<ffaudio.size(); ++k ) {
2919                                                 if( ffaudio[k]->fidx != fidx ) continue;
2920                                                 ffaudio[k]->nudge = nudge;
2921                                         }
2922                                         continue;
2923                                 }
2924                         }
2925                 }
2926                 // set nudges for any streams not yet set
2927                 int64_t vstart_time = min_nudge, astart_time = min_nudge;
2928                 int nstreams = fmt_ctx->nb_streams;
2929                 for( int i=0; i<nstreams; ++i ) {
2930                         AVStream *st = fmt_ctx->streams[i];
2931                         AVCodecParameters *avpar = st->codecpar;
2932                         switch( avpar->codec_type ) {
2933                         case AVMEDIA_TYPE_VIDEO: {
2934                                 if( st->start_time == AV_NOPTS_VALUE ) continue;
2935                                 int vidx = ffvideo.size();
2936                                 while( --vidx >= 0 && ffvideo[vidx]->fidx != i );
2937                                 if( vidx < 0 ) continue;
2938                                 if( ffvideo[vidx]->nudge != AV_NOPTS_VALUE ) continue;
2939                                 if( vstart_time < st->start_time )
2940                                         vstart_time = st->start_time;
2941                                 break; }
2942                         case AVMEDIA_TYPE_AUDIO: {
2943                                 if( st->start_time == AV_NOPTS_VALUE ) continue;
2944                                 int aidx = ffaudio.size();
2945                                 while( --aidx >= 0 && ffaudio[aidx]->fidx != i );
2946                                 if( aidx < 0 ) continue;
2947                                 if( ffaudio[aidx]->frame_sz < avpar->frame_size )
2948                                         ffaudio[aidx]->frame_sz = avpar->frame_size;
2949                                 if( ffaudio[aidx]->nudge != AV_NOPTS_VALUE ) continue;
2950                                 if( astart_time < st->start_time )
2951                                         astart_time = st->start_time;
2952                                 break; }
2953                         default: break;
2954                         }
2955                 }
2956                 int64_t nudge = vstart_time > min_nudge ? vstart_time :
2957                         astart_time > min_nudge ? astart_time : 0;
2958                 for( int vidx=0; vidx<ffvideo.size(); ++vidx ) {
2959                         if( ffvideo[vidx]->nudge == AV_NOPTS_VALUE )
2960                                 ffvideo[vidx]->nudge = nudge;
2961                 }
2962                 for( int aidx=0; aidx<ffaudio.size(); ++aidx ) {
2963                         if( ffaudio[aidx]->nudge == AV_NOPTS_VALUE )
2964                                 ffaudio[aidx]->nudge = nudge;
2965                 }
2966                 decoding = 1;
2967         }
2968         return decoding;
2969 }
2970
2971 int FFMPEG::encode_activate()
2972 {
2973         int ret = 0;
2974         if( encoding < 0 ) {
2975                 encoding = 0;
2976                 if( !(fmt_ctx->flags & AVFMT_NOFILE) &&
2977                     (ret=avio_open(&fmt_ctx->pb, fmt_ctx->url, AVIO_FLAG_WRITE)) < 0 ) {
2978                         ff_err(ret, "FFMPEG::encode_activate: err opening : %s\n",
2979                                 fmt_ctx->url);
2980                         return -1;
2981                 }
2982                 if( !strcmp(file_format, "image2") ) {
2983                         Asset *asset = file_base->asset;
2984                         const char *filename = asset->path;
2985                         FILE *fp = fopen(filename,"w");
2986                         if( !fp ) {
2987                                 eprintf(_("Cant write image2 header file: %s\n  %m"), filename);
2988                                 return 1;
2989                         }
2990                         fprintf(fp, "IMAGE2\n");
2991                         fprintf(fp, "# Frame rate: %f\n", asset->frame_rate);
2992                         fprintf(fp, "# Width: %d\n", asset->width);
2993                         fprintf(fp, "# Height: %d\n", asset->height);
2994                         fclose(fp);
2995                 }
2996                 int prog_id = 1;
2997                 AVProgram *prog = av_new_program(fmt_ctx, prog_id);
2998                 for( int i=0; i< ffvideo.size(); ++i )
2999                         av_program_add_stream_index(fmt_ctx, prog_id, ffvideo[i]->fidx);
3000                 for( int i=0; i< ffaudio.size(); ++i )
3001                         av_program_add_stream_index(fmt_ctx, prog_id, ffaudio[i]->fidx);
3002                 int pi = fmt_ctx->nb_programs;
3003                 while(  --pi >= 0 && fmt_ctx->programs[pi]->id != prog_id );
3004                 AVDictionary **meta = &prog->metadata;
3005                 av_dict_set(meta, "service_provider", "cin5", 0);
3006                 const char *path = fmt_ctx->url, *bp = strrchr(path,'/');
3007                 if( bp ) path = bp + 1;
3008                 av_dict_set(meta, "title", path, 0);
3009
3010                 if( ffaudio.size() ) {
3011                         const char *ep = getenv("CIN_AUDIO_LANG"), *lp = 0;
3012                         if( !ep && (lp=getenv("LANG")) ) { // some are guesses
3013                                 static struct { const char lc[3], lng[4]; } lcode[] = {
3014                                         { "en", "eng" }, { "de", "ger" }, { "es", "spa" },
3015                                         { "eu", "bas" }, { "fr", "fre" }, { "el", "gre" },
3016                                         { "hi", "hin" }, { "it", "ita" }, { "ja", "jap" },
3017                                         { "ko", "kor" }, { "du", "dut" }, { "pl", "pol" },
3018                                         { "pt", "por" }, { "ru", "rus" }, { "sl", "slv" },
3019                                         { "uk", "ukr" }, { "vi", "vie" }, { "zh", "chi" },
3020                                 };
3021                                 for( int i=sizeof(lcode)/sizeof(lcode[0]); --i>=0 && !ep; )
3022                                         if( !strncmp(lcode[i].lc,lp,2) ) ep = lcode[i].lng;
3023                         }
3024                         if( !ep ) ep = "und";
3025                         char lang[5];
3026                         strncpy(lang,ep,3);  lang[3] = 0;
3027                         AVStream *st = ffaudio[0]->st;
3028                         av_dict_set(&st->metadata,"language",lang,0);
3029                 }
3030
3031                 AVDictionary *fopts = 0;
3032                 char option_path[BCTEXTLEN];
3033                 set_option_path(option_path, "format/%s", file_format);
3034                 read_options(option_path, fopts, 1);
3035                 av_dict_copy(&fopts, opts, 0);
3036                 if( scan_options(file_base->asset->ff_format_options, fopts, 0) ) {
3037                         eprintf(_("bad format options %s\n"), file_base->asset->path);
3038                         ret = -1;
3039                 }
3040                 if( ret >= 0 )
3041                         ret = avformat_write_header(fmt_ctx, &fopts);
3042                 if( ret < 0 ) {
3043                         ff_err(ret, "FFMPEG::encode_activate: write header failed %s\n",
3044                                 fmt_ctx->url);
3045                         return -1;
3046                 }
3047                 av_dict_free(&fopts);
3048                 encoding = 1;
3049         }
3050         return encoding;
3051 }
3052
3053
3054 int FFMPEG::audio_seek(int stream, int64_t pos)
3055 {
3056         int aidx = astrm_index[stream].st_idx;
3057         FFAudioStream *aud = ffaudio[aidx];
3058         aud->audio_seek(pos);
3059         return 0;
3060 }
3061
3062 int FFMPEG::video_seek(int stream, int64_t pos)
3063 {
3064         int vidx = vstrm_index[stream].st_idx;
3065         FFVideoStream *vid = ffvideo[vidx];
3066         vid->video_seek(pos);
3067         return 0;
3068 }
3069
3070
3071 int FFMPEG::decode(int chn, int64_t pos, double *samples, int len)
3072 {
3073         if( !has_audio || chn >= astrm_index.size() ) return -1;
3074         int aidx = astrm_index[chn].st_idx;
3075         FFAudioStream *aud = ffaudio[aidx];
3076         if( aud->load(pos, len) < len ) return -1;
3077         int ch = astrm_index[chn].st_ch;
3078         int ret = aud->read(samples,len,ch);
3079         return ret;
3080 }
3081
3082 int FFMPEG::decode(int layer, int64_t pos, VFrame *vframe)
3083 {
3084         if( !has_video || layer >= vstrm_index.size() ) return -1;
3085         int vidx = vstrm_index[layer].st_idx;
3086         FFVideoStream *vid = ffvideo[vidx];
3087         return vid->load(vframe, pos);
3088 }
3089
3090
3091 int FFMPEG::encode(int stream, double **samples, int len)
3092 {
3093         FFAudioStream *aud = ffaudio[stream];
3094         return aud->encode(samples, len);
3095 }
3096
3097
3098 int FFMPEG::encode(int stream, VFrame *frame)
3099 {
3100         FFVideoStream *vid = ffvideo[stream];
3101         return vid->encode(frame);
3102 }
3103
3104 void FFMPEG::start_muxer()
3105 {
3106         if( !running() ) {
3107                 done = 0;
3108                 start();
3109         }
3110 }
3111
3112 void FFMPEG::stop_muxer()
3113 {
3114         if( running() ) {
3115                 done = 1;
3116                 mux_lock->unlock();
3117         }
3118         join();
3119 }
3120
3121 void FFMPEG::flow_off()
3122 {
3123         if( !flow ) return;
3124         flow_lock->lock("FFMPEG::flow_off");
3125         flow = 0;
3126 }
3127
3128 void FFMPEG::flow_on()
3129 {
3130         if( flow ) return;
3131         flow = 1;
3132         flow_lock->unlock();
3133 }
3134
3135 void FFMPEG::flow_ctl()
3136 {
3137         while( !flow ) {
3138                 flow_lock->lock("FFMPEG::flow_ctl");
3139                 flow_lock->unlock();
3140         }
3141 }
3142
3143 int FFMPEG::mux_audio(FFrame *frm)
3144 {
3145         FFStream *fst = frm->fst;
3146         AVCodecContext *ctx = fst->avctx;
3147         AVFrame *frame = *frm;
3148         AVRational tick_rate = {1, ctx->sample_rate};
3149         frame->pts = av_rescale_q(frm->position, tick_rate, ctx->time_base);
3150         int ret = fst->encode_frame(frame);
3151         if( ret < 0 )
3152                 ff_err(ret, "FFMPEG::mux_audio");
3153         return ret >= 0 ? 0 : 1;
3154 }
3155
3156 int FFMPEG::mux_video(FFrame *frm)
3157 {
3158         FFStream *fst = frm->fst;
3159         AVFrame *frame = *frm;
3160         frame->pts = frm->position;
3161         int ret = fst->encode_frame(frame);
3162         if( ret < 0 )
3163                 ff_err(ret, "FFMPEG::mux_video");
3164         return ret >= 0 ? 0 : 1;
3165 }
3166
3167 void FFMPEG::mux()
3168 {
3169         for(;;) {
3170                 double atm = -1, vtm = -1;
3171                 FFrame *afrm = 0, *vfrm = 0;
3172                 int demand = 0;
3173                 for( int i=0; i<ffaudio.size(); ++i ) {  // earliest audio
3174                         FFStream *fst = ffaudio[i];
3175                         if( fst->frm_count < 3 ) { demand = 1; flow_on(); }
3176                         FFrame *frm = fst->frms.first;
3177                         if( !frm ) { if( !done ) return; continue; }
3178                         double tm = to_secs(frm->position, fst->avctx->time_base);
3179                         if( atm < 0 || tm < atm ) { atm = tm;  afrm = frm; }
3180                 }
3181                 for( int i=0; i<ffvideo.size(); ++i ) {  // earliest video
3182                         FFStream *fst = ffvideo[i];
3183                         if( fst->frm_count < 2 ) { demand = 1; flow_on(); }
3184                         FFrame *frm = fst->frms.first;
3185                         if( !frm ) { if( !done ) return; continue; }
3186                         double tm = to_secs(frm->position, fst->avctx->time_base);
3187                         if( vtm < 0 || tm < vtm ) { vtm = tm;  vfrm = frm; }
3188                 }
3189                 if( !demand ) flow_off();
3190                 if( !afrm && !vfrm ) break;
3191                 int v = !afrm ? -1 : !vfrm ? 1 : av_compare_ts(
3192                         vfrm->position, vfrm->fst->avctx->time_base,
3193                         afrm->position, afrm->fst->avctx->time_base);
3194                 FFrame *frm = v <= 0 ? vfrm : afrm;
3195                 if( frm == afrm ) mux_audio(frm);
3196                 if( frm == vfrm ) mux_video(frm);
3197                 frm->dequeue();
3198                 delete frm;
3199         }
3200 }
3201
3202 void FFMPEG::run()
3203 {
3204         while( !done ) {
3205                 mux_lock->lock("FFMPEG::run");
3206                 if( !done ) mux();
3207         }
3208         for( int i=0; i<ffaudio.size(); ++i )
3209                 ffaudio[i]->drain();
3210         for( int i=0; i<ffvideo.size(); ++i )
3211                 ffvideo[i]->drain();
3212         mux();
3213         for( int i=0; i<ffaudio.size(); ++i )
3214                 ffaudio[i]->flush();
3215         for( int i=0; i<ffvideo.size(); ++i )
3216                 ffvideo[i]->flush();
3217 }
3218
3219
3220 int FFMPEG::ff_total_audio_channels()
3221 {
3222         return astrm_index.size();
3223 }
3224
3225 int FFMPEG::ff_total_astreams()
3226 {
3227         return ffaudio.size();
3228 }
3229
3230 int FFMPEG::ff_audio_channels(int stream)
3231 {
3232         return ffaudio[stream]->channels;
3233 }
3234
3235 int FFMPEG::ff_sample_rate(int stream)
3236 {
3237         return ffaudio[stream]->sample_rate;
3238 }
3239
3240 const char* FFMPEG::ff_audio_format(int stream)
3241 {
3242         AVStream *st = ffaudio[stream]->st;
3243         AVCodecID id = st->codecpar->codec_id;
3244         const AVCodecDescriptor *desc = avcodec_descriptor_get(id);
3245         return desc ? desc->name : _("Unknown");
3246 }
3247
3248 int FFMPEG::ff_audio_pid(int stream)
3249 {
3250         return ffaudio[stream]->st->id;
3251 }
3252
3253 int64_t FFMPEG::ff_audio_samples(int stream)
3254 {
3255         return ffaudio[stream]->length;
3256 }
3257
3258 // find audio astream/channels with this program,
3259 //   or all program audio channels (astream=-1)
3260 int FFMPEG::ff_audio_for_video(int vstream, int astream, int64_t &channel_mask)
3261 {
3262         channel_mask = 0;
3263         int pidx = -1;
3264         int vidx = ffvideo[vstream]->fidx;
3265         // find first program with this video stream
3266         for( int i=0; pidx<0 && i<(int)fmt_ctx->nb_programs; ++i ) {
3267                 AVProgram *pgrm = fmt_ctx->programs[i];
3268                 for( int j=0;  pidx<0 && j<(int)pgrm->nb_stream_indexes; ++j ) {
3269                         int st_idx = pgrm->stream_index[j];
3270                         AVStream *st = fmt_ctx->streams[st_idx];
3271                         if( st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO ) continue;
3272                         if( st_idx == vidx ) pidx = i;
3273                 }
3274         }
3275         if( pidx < 0 ) return -1;
3276         int ret = -1;
3277         int64_t channels = 0;
3278         AVProgram *pgrm = fmt_ctx->programs[pidx];
3279         for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
3280                 int aidx = pgrm->stream_index[j];
3281                 AVStream *st = fmt_ctx->streams[aidx];
3282                 if( st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO ) continue;
3283                 if( astream > 0 ) { --astream;  continue; }
3284                 int astrm = -1;
3285                 for( int i=0; astrm<0 && i<ffaudio.size(); ++i )
3286                         if( ffaudio[i]->fidx == aidx ) astrm = i;
3287                 if( astrm >= 0 ) {
3288                         if( ret < 0 ) ret = astrm;
3289                         int64_t mask = (1 << ffaudio[astrm]->channels) - 1;
3290                         channels |= mask << ffaudio[astrm]->channel0;
3291                 }
3292                 if( !astream ) break;
3293         }
3294         channel_mask = channels;
3295         return ret;
3296 }
3297
3298
3299 int FFMPEG::ff_total_video_layers()
3300 {
3301         return vstrm_index.size();
3302 }
3303
3304 int FFMPEG::ff_total_vstreams()
3305 {
3306         return ffvideo.size();
3307 }
3308
3309 int FFMPEG::ff_video_width(int stream)
3310 {
3311         return ffvideo[stream]->width;
3312 }
3313
3314 int FFMPEG::ff_video_height(int stream)
3315 {
3316         return ffvideo[stream]->height;
3317 }
3318
3319 int FFMPEG::ff_set_video_width(int stream, int width)
3320 {
3321         int w = ffvideo[stream]->width;
3322         ffvideo[stream]->width = width;
3323         return w;
3324 }
3325
3326 int FFMPEG::ff_set_video_height(int stream, int height)
3327 {
3328         int h = ffvideo[stream]->height;
3329         ffvideo[stream]->height = height;
3330         return h;
3331 }
3332
3333 int FFMPEG::ff_coded_width(int stream)
3334 {
3335         return ffvideo[stream]->avctx->coded_width;
3336 }
3337
3338 int FFMPEG::ff_coded_height(int stream)
3339 {
3340         return ffvideo[stream]->avctx->coded_height;
3341 }
3342
3343 float FFMPEG::ff_aspect_ratio(int stream)
3344 {
3345         return ffvideo[stream]->aspect_ratio;
3346 }
3347
3348 const char* FFMPEG::ff_video_codec(int stream)
3349 {
3350         AVStream *st = ffvideo[stream]->st;
3351         AVCodecID id = st->codecpar->codec_id;
3352         const AVCodecDescriptor *desc = avcodec_descriptor_get(id);
3353         return desc ? desc->name : _("Unknown");
3354 }
3355
3356 int FFMPEG::ff_color_range(int stream)
3357 {
3358         return ffvideo[stream]->color_range;
3359 }
3360
3361 int FFMPEG::ff_color_space(int stream)
3362 {
3363         return ffvideo[stream]->color_space;
3364 }
3365
3366 double FFMPEG::ff_frame_rate(int stream)
3367 {
3368         return ffvideo[stream]->frame_rate;
3369 }
3370
3371 int64_t FFMPEG::ff_video_frames(int stream)
3372 {
3373         return ffvideo[stream]->length;
3374 }
3375
3376 int FFMPEG::ff_video_pid(int stream)
3377 {
3378         return ffvideo[stream]->st->id;
3379 }
3380
3381 int FFMPEG::ff_video_mpeg_color_range(int stream)
3382 {
3383         return ffvideo[stream]->st->codecpar->color_range == AVCOL_RANGE_MPEG ? 1 : 0;
3384 }
3385
3386 int FFMPEG::ff_cpus()
3387 {
3388         return file_base->file->cpus;
3389 }
3390
3391 const char *FFMPEG::ff_hw_dev()
3392 {
3393         return &file_base->file->preferences->use_hw_dev[0];
3394 }
3395
3396 Preferences *FFMPEG::ff_prefs()
3397 {
3398         return !file_base ? 0 : file_base->file->preferences;
3399 }
3400
3401 int FFVideoStream::create_filter(const char *filter_spec, AVCodecParameters *avpar)
3402 {
3403         avfilter_register_all();
3404         const char *sp = filter_spec;
3405         char filter_name[BCSTRLEN], *np = filter_name;
3406         int i = sizeof(filter_name);
3407         while( --i>=0 && *sp!=0 && !strchr(" \t:=,",*sp) ) *np++ = *sp++;
3408         *np = 0;
3409         const AVFilter *filter = !filter_name[0] ? 0 : avfilter_get_by_name(filter_name);
3410         if( !filter || avfilter_pad_get_type(filter->inputs,0) != AVMEDIA_TYPE_VIDEO ) {
3411                 ff_err(AVERROR(EINVAL), "FFVideoStream::create_filter: %s\n", filter_spec);
3412                 return -1;
3413         }
3414         filter_graph = avfilter_graph_alloc();
3415         const AVFilter *buffersrc = avfilter_get_by_name("buffer");
3416         const AVFilter *buffersink = avfilter_get_by_name("buffersink");
3417
3418         int ret = 0;  char args[BCTEXTLEN];
3419         AVPixelFormat pix_fmt = (AVPixelFormat)avpar->format;
3420         snprintf(args, sizeof(args),
3421                 "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
3422                 avpar->width, avpar->height, (int)pix_fmt,
3423                 st->time_base.num, st->time_base.den,
3424                 avpar->sample_aspect_ratio.num, avpar->sample_aspect_ratio.den);
3425         if( ret >= 0 )
3426                 ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
3427                         args, NULL, filter_graph);
3428         if( ret >= 0 )
3429                 ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
3430                         NULL, NULL, filter_graph);
3431         if( ret >= 0 )
3432                 ret = av_opt_set_bin(buffersink_ctx, "pix_fmts",
3433                         (uint8_t*)&pix_fmt, sizeof(pix_fmt),
3434                         AV_OPT_SEARCH_CHILDREN);
3435         if( ret < 0 )
3436                 ff_err(ret, "FFVideoStream::create_filter");
3437         else
3438                 ret = FFStream::create_filter(filter_spec);
3439         return ret >= 0 ? 0 : -1;
3440 }
3441
3442 int FFAudioStream::create_filter(const char *filter_spec, AVCodecParameters *avpar)
3443 {
3444         avfilter_register_all();
3445         const char *sp = filter_spec;
3446         char filter_name[BCSTRLEN], *np = filter_name;
3447         int i = sizeof(filter_name);
3448         while( --i>=0 && *sp!=0 && !strchr(" \t:=,",*sp) ) *np++ = *sp++;
3449         *np = 0;
3450         const AVFilter *filter = !filter_name[0] ? 0 : avfilter_get_by_name(filter_name);
3451         if( !filter || avfilter_pad_get_type(filter->inputs,0) != AVMEDIA_TYPE_AUDIO ) {
3452                 ff_err(AVERROR(EINVAL), "FFAudioStream::create_filter: %s\n", filter_spec);
3453                 return -1;
3454         }
3455         filter_graph = avfilter_graph_alloc();
3456         const AVFilter *buffersrc = avfilter_get_by_name("abuffer");
3457         const AVFilter *buffersink = avfilter_get_by_name("abuffersink");
3458         int ret = 0;  char args[BCTEXTLEN];
3459         AVSampleFormat sample_fmt = (AVSampleFormat)avpar->format;
3460         snprintf(args, sizeof(args),
3461                 "time_base=%d/%d:sample_rate=%d:sample_fmt=%s:channel_layout=0x%jx",
3462                 st->time_base.num, st->time_base.den, avpar->sample_rate,
3463                 av_get_sample_fmt_name(sample_fmt), avpar->channel_layout);
3464         if( ret >= 0 )
3465                 ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
3466                         args, NULL, filter_graph);
3467         if( ret >= 0 )
3468                 ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
3469                         NULL, NULL, filter_graph);
3470         if( ret >= 0 )
3471                 ret = av_opt_set_bin(buffersink_ctx, "sample_fmts",
3472                         (uint8_t*)&sample_fmt, sizeof(sample_fmt),
3473                         AV_OPT_SEARCH_CHILDREN);
3474         if( ret >= 0 )
3475                 ret = av_opt_set_bin(buffersink_ctx, "channel_layouts",
3476                         (uint8_t*)&avpar->channel_layout,
3477                         sizeof(avpar->channel_layout), AV_OPT_SEARCH_CHILDREN);
3478         if( ret >= 0 )
3479                 ret = av_opt_set_bin(buffersink_ctx, "sample_rates",
3480                         (uint8_t*)&sample_rate, sizeof(sample_rate),
3481                         AV_OPT_SEARCH_CHILDREN);
3482         if( ret < 0 )
3483                 ff_err(ret, "FFAudioStream::create_filter");
3484         else
3485                 ret = FFStream::create_filter(filter_spec);
3486         return ret >= 0 ? 0 : -1;
3487 }
3488
3489 int FFStream::create_filter(const char *filter_spec)
3490 {
3491         /* Endpoints for the filter graph. */
3492         AVFilterInOut *outputs = avfilter_inout_alloc();
3493         outputs->name = av_strdup("in");
3494         outputs->filter_ctx = buffersrc_ctx;
3495         outputs->pad_idx = 0;
3496         outputs->next = 0;
3497
3498         AVFilterInOut *inputs  = avfilter_inout_alloc();
3499         inputs->name = av_strdup("out");
3500         inputs->filter_ctx = buffersink_ctx;
3501         inputs->pad_idx = 0;
3502         inputs->next = 0;
3503
3504         int ret = !outputs->name || !inputs->name ? -1 : 0;
3505         if( ret >= 0 )
3506                 ret = avfilter_graph_parse_ptr(filter_graph, filter_spec,
3507                         &inputs, &outputs, NULL);
3508         if( ret >= 0 )
3509                 ret = avfilter_graph_config(filter_graph, NULL);
3510
3511         if( ret < 0 ) {
3512                 ff_err(ret, "FFStream::create_filter");
3513                 avfilter_graph_free(&filter_graph);
3514                 filter_graph = 0;
3515         }
3516         avfilter_inout_free(&inputs);
3517         avfilter_inout_free(&outputs);
3518         return ret;
3519 }
3520
3521 int FFMPEG::scan(IndexState *index_state, int64_t *scan_position, int *canceled)
3522 {
3523         AVPacket pkt;
3524         av_init_packet(&pkt);
3525         AVFrame *frame = av_frame_alloc();
3526         if( !frame ) {
3527                 fprintf(stderr,"FFMPEG::scan: ");
3528                 fprintf(stderr,_("av_frame_alloc failed\n"));
3529                 fprintf(stderr,"FFMPEG::scan:file=%s\n", file_base->asset->path);
3530                 return -1;
3531         }
3532
3533         index_state->add_video_markers(ffvideo.size());
3534         index_state->add_audio_markers(ffaudio.size());
3535
3536         for( int i=0; i<(int)fmt_ctx->nb_streams; ++i ) {
3537                 int ret = 0;
3538                 AVDictionary *copts = 0;
3539                 av_dict_copy(&copts, opts, 0);
3540                 AVStream *st = fmt_ctx->streams[i];
3541                 AVCodecID codec_id = st->codecpar->codec_id;
3542                 AVCodec *decoder = avcodec_find_decoder(codec_id);
3543                 AVCodecContext *avctx = avcodec_alloc_context3(decoder);
3544                 if( !avctx ) {
3545                         eprintf(_("cant allocate codec context\n"));
3546                         ret = AVERROR(ENOMEM);
3547                 }
3548                 if( ret >= 0 ) {
3549                         avcodec_parameters_to_context(avctx, st->codecpar);
3550                         if( !av_dict_get(copts, "threads", NULL, 0) )
3551                                 avctx->thread_count = ff_cpus();
3552                         ret = avcodec_open2(avctx, decoder, &copts);
3553                 }
3554                 av_dict_free(&copts);
3555                 if( ret >= 0 ) {
3556                         AVCodecParameters *avpar = st->codecpar;
3557                         switch( avpar->codec_type ) {
3558                         case AVMEDIA_TYPE_VIDEO: {
3559                                 int vidx = ffvideo.size();
3560                                 while( --vidx>=0 && ffvideo[vidx]->fidx != i );
3561                                 if( vidx < 0 ) break;
3562                                 ffvideo[vidx]->avctx = avctx;
3563                                 continue; }
3564                         case AVMEDIA_TYPE_AUDIO: {
3565                                 int aidx = ffaudio.size();
3566                                 while( --aidx>=0 && ffaudio[aidx]->fidx != i );
3567                                 if( aidx < 0 ) break;
3568                                 ffaudio[aidx]->avctx = avctx;
3569                                 continue; }
3570                         default: break;
3571                         }
3572                 }
3573                 fprintf(stderr,"FFMPEG::scan: ");
3574                 fprintf(stderr,_("codec open failed\n"));
3575                 fprintf(stderr,"FFMPEG::scan:file=%s\n", file_base->asset->path);
3576                 avcodec_free_context(&avctx);
3577         }
3578
3579         decode_activate();
3580         for( int i=0; i<(int)fmt_ctx->nb_streams; ++i ) {
3581                 AVStream *st = fmt_ctx->streams[i];
3582                 AVCodecParameters *avpar = st->codecpar;
3583                 if( avpar->codec_type != AVMEDIA_TYPE_AUDIO ) continue;
3584                 int64_t tstmp = st->start_time;
3585                 if( tstmp == AV_NOPTS_VALUE ) continue;
3586                 int aidx = ffaudio.size();
3587                 while( --aidx>=0 && ffaudio[aidx]->fidx != i );
3588                 if( aidx < 0 ) continue;
3589                 FFAudioStream *aud = ffaudio[aidx];
3590                 tstmp -= aud->nudge;
3591                 double secs = to_secs(tstmp, st->time_base);
3592                 aud->curr_pos = secs * aud->sample_rate + 0.5;
3593         }
3594
3595         int errs = 0;
3596         for( int64_t count=0; !*canceled; ++count ) {
3597                 av_packet_unref(&pkt);
3598                 pkt.data = 0; pkt.size = 0;
3599
3600                 int ret = av_read_frame(fmt_ctx, &pkt);
3601                 if( ret < 0 ) {
3602                         if( ret == AVERROR_EOF ) break;
3603                         if( ++errs > 100 ) {
3604                                 ff_err(ret,_("over 100 read_frame errs\n"));
3605                                 break;
3606                         }
3607                         continue;
3608                 }
3609                 if( !pkt.data ) continue;
3610                 int i = pkt.stream_index;
3611                 if( i < 0 || i >= (int)fmt_ctx->nb_streams ) continue;
3612                 AVStream *st = fmt_ctx->streams[i];
3613                 if( pkt.pos > *scan_position ) *scan_position = pkt.pos;
3614
3615                 AVCodecParameters *avpar = st->codecpar;
3616                 switch( avpar->codec_type ) {
3617                 case AVMEDIA_TYPE_VIDEO: {
3618                         int vidx = ffvideo.size();
3619                         while( --vidx>=0 && ffvideo[vidx]->fidx != i );
3620                         if( vidx < 0 ) break;
3621                         FFVideoStream *vid = ffvideo[vidx];
3622                         if( !vid->avctx ) break;
3623                         int64_t tstmp = pkt.dts;
3624                         if( tstmp == AV_NOPTS_VALUE ) tstmp = pkt.pts;
3625                         if( tstmp != AV_NOPTS_VALUE && (pkt.flags & AV_PKT_FLAG_KEY) && pkt.pos > 0 ) {
3626                                 if( vid->nudge != AV_NOPTS_VALUE ) tstmp -= vid->nudge;
3627                                 double secs = to_secs(tstmp, st->time_base);
3628                                 int64_t frm = secs * vid->frame_rate + 0.5;
3629                                 if( frm < 0 ) frm = 0;
3630                                 index_state->put_video_mark(vidx, frm, pkt.pos);
3631                         }
3632 #if 0
3633                         ret = avcodec_send_packet(vid->avctx, pkt);
3634                         if( ret < 0 ) break;
3635                         while( (ret=vid->decode_frame(frame)) > 0 ) {}
3636 #endif
3637                         break; }
3638                 case AVMEDIA_TYPE_AUDIO: {
3639                         int aidx = ffaudio.size();
3640                         while( --aidx>=0 && ffaudio[aidx]->fidx != i );
3641                         if( aidx < 0 ) break;
3642                         FFAudioStream *aud = ffaudio[aidx];
3643                         if( !aud->avctx ) break;
3644                         int64_t tstmp = pkt.pts;
3645                         if( tstmp == AV_NOPTS_VALUE ) tstmp = pkt.dts;
3646                         if( tstmp != AV_NOPTS_VALUE && (pkt.flags & AV_PKT_FLAG_KEY) && pkt.pos > 0 ) {
3647                                 if( aud->nudge != AV_NOPTS_VALUE ) tstmp -= aud->nudge;
3648                                 double secs = to_secs(tstmp, st->time_base);
3649                                 int64_t sample = secs * aud->sample_rate + 0.5;
3650                                 if( sample >= 0 )
3651                                         index_state->put_audio_mark(aidx, sample, pkt.pos);
3652                         }
3653                         ret = avcodec_send_packet(aud->avctx, &pkt);
3654                         if( ret < 0 ) break;
3655                         int ch = aud->channel0,  nch = aud->channels;
3656                         int64_t pos = index_state->pos(ch);
3657                         if( pos != aud->curr_pos ) {
3658 if( abs(pos-aud->curr_pos) > 1 )
3659 printf("audio%d pad %jd %jd (%jd)\n", aud->idx, pos, aud->curr_pos, pos-aud->curr_pos);
3660                                 index_state->pad_data(ch, nch, aud->curr_pos);
3661                         }
3662                         while( (ret=aud->decode_frame(frame)) > 0 ) {
3663                                 //if( frame->channels != nch ) break;
3664                                 aud->init_swr(frame->channels, frame->format, frame->sample_rate);
3665                                 float *samples;
3666                                 int len = aud->get_samples(samples,
3667                                          &frame->extended_data[0], frame->nb_samples);
3668                                 pos = aud->curr_pos;
3669                                 if( (aud->curr_pos += len) >= 0 ) {
3670                                         if( pos < 0 ) {
3671                                                 samples += -pos * nch;
3672                                                 len = aud->curr_pos;
3673                                         }
3674                                         for( int i=0; i<nch; ++i )
3675                                                 index_state->put_data(ch+i,nch,samples+i,len);
3676                                 }
3677                         }
3678                         break; }
3679                 default: break;
3680                 }
3681         }
3682         av_frame_free(&frame);
3683         return 0;
3684 }
3685
3686 void FFStream::load_markers(IndexMarks &marks, double rate)
3687 {
3688         int in = 0;
3689         int64_t sz = marks.size();
3690         int max_entries = fmt_ctx->max_index_size / sizeof(AVIndexEntry) - 1;
3691         int nb_ent = st->nb_index_entries;
3692 // some formats already have an index
3693         if( nb_ent > 0 ) {
3694                 AVIndexEntry *ep = &st->index_entries[nb_ent-1];
3695                 int64_t tstmp = ep->timestamp;
3696                 if( nudge != AV_NOPTS_VALUE ) tstmp -= nudge;
3697                 double secs = ffmpeg->to_secs(tstmp, st->time_base);
3698                 int64_t no = secs * rate;
3699                 while( in < sz && marks[in].no <= no ) ++in;
3700         }
3701         int64_t len = sz - in;
3702         int64_t count = max_entries - nb_ent;
3703         if( count > len ) count = len;
3704         for( int i=0; i<count; ++i ) {
3705                 int k = in + i * len / count;
3706                 int64_t no = marks[k].no, pos = marks[k].pos;
3707                 double secs = (double)no / rate;
3708                 int64_t tstmp = secs * st->time_base.den / st->time_base.num;
3709                 if( nudge != AV_NOPTS_VALUE ) tstmp += nudge;
3710                 av_add_index_entry(st, pos, tstmp, 0, 0, AVINDEX_KEYFRAME);
3711         }
3712 }
3713