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