version update, Features5 update, proxy tweak
[goodguy/history.git] / 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
19 #include "asset.h"
20 #include "bccmodels.h"
21 #include "bchash.h"
22 #include "edl.h"
23 #include "edlsession.h"
24 #include "file.h"
25 #include "fileffmpeg.h"
26 #include "filesystem.h"
27 #include "ffmpeg.h"
28 #include "indexfile.h"
29 #include "interlacemodes.h"
30 #include "libdv.h"
31 #include "libmjpeg.h"
32 #include "mainerror.h"
33 #include "mwindow.h"
34 #include "vframe.h"
35
36 #ifdef FFMPEG3
37 #define url filename
38 #else
39 #define av_register_all(s)
40 #define avfilter_register_all(s)
41 #endif
42
43 #define VIDEO_INBUF_SIZE 0x10000
44 #define AUDIO_INBUF_SIZE 0x10000
45 #define VIDEO_REFILL_THRESH 0
46 #define AUDIO_REFILL_THRESH 0x1000
47 #define AUDIO_MIN_FRAME_SZ 128
48
49 Mutex FFMPEG::fflock("FFMPEG::fflock");
50
51 static void ff_err(int ret, const char *fmt, ...)
52 {
53         char msg[BCTEXTLEN];
54         va_list ap;
55         va_start(ap, fmt);
56         vsnprintf(msg, sizeof(msg), fmt, ap);
57         va_end(ap);
58         char errmsg[BCSTRLEN];
59         av_strerror(ret, errmsg, sizeof(errmsg));
60         fprintf(stderr,_("%s  err: %s\n"),msg, errmsg);
61 }
62
63 void FFPacket::init()
64 {
65         av_init_packet(&pkt);
66         pkt.data = 0; pkt.size = 0;
67 }
68 void FFPacket::finit()
69 {
70         av_packet_unref(&pkt);
71 }
72
73 FFrame::FFrame(FFStream *fst)
74 {
75         this->fst = fst;
76         frm = av_frame_alloc();
77         init = fst->init_frame(frm);
78 }
79
80 FFrame::~FFrame()
81 {
82         av_frame_free(&frm);
83 }
84
85 void FFrame::queue(int64_t pos)
86 {
87         position = pos;
88         fst->queue(this);
89 }
90
91 void FFrame::dequeue()
92 {
93         fst->dequeue(this);
94 }
95
96 int FFAudioStream::read(float *fp, long len)
97 {
98         long n = len * nch;
99         float *op = outp;
100         while( n > 0 ) {
101                 int k = lmt - op;
102                 if( k > n ) k = n;
103                 n -= k;
104                 while( --k >= 0 ) *fp++ = *op++;
105                 if( op >= lmt ) op = bfr;
106         }
107         return len;
108 }
109
110 void FFAudioStream::realloc(long nsz, int nch, long len)
111 {
112         long bsz = nsz * nch;
113         float *np = new float[bsz];
114         inp = np + read(np, len) * nch;
115         outp = np;
116         lmt = np + bsz;
117         this->nch = nch;
118         sz = nsz;
119         delete [] bfr;  bfr = np;
120 }
121
122 void FFAudioStream::realloc(long nsz, int nch)
123 {
124         if( nsz > sz || this->nch != nch ) {
125                 long len = this->nch != nch ? 0 : hpos;
126                 if( len > sz ) len = sz;
127                 iseek(len);
128                 realloc(nsz, nch, len);
129         }
130 }
131
132 void FFAudioStream::reserve(long nsz, int nch)
133 {
134         long len = (inp - outp) / nch;
135         nsz += len;
136         if( nsz > sz || this->nch != nch ) {
137                 if( this->nch != nch ) len = 0;
138                 realloc(nsz, nch, len);
139                 return;
140         }
141         if( (len*=nch) > 0 && bfr != outp )
142                 memmove(bfr, outp, len*sizeof(*bfr));
143         outp = bfr;
144         inp = bfr + len;
145 }
146
147 long FFAudioStream::used()
148 {
149         long len = inp>=outp ? inp-outp : inp-bfr + lmt-outp;
150         return len / nch;
151 }
152 long FFAudioStream::avail()
153 {
154         float *in1 = inp+1;
155         if( in1 >= lmt ) in1 = bfr;
156         long len = outp >= in1 ? outp-in1 : outp-bfr + lmt-in1;
157         return len / nch;
158 }
159 void FFAudioStream::reset_history()
160 {
161         inp = outp = bfr;
162         hpos = 0;
163         memset(bfr, 0, lmt-bfr);
164 }
165
166 void FFAudioStream::iseek(int64_t ofs)
167 {
168         if( ofs > hpos ) ofs = hpos;
169         if( ofs > sz ) ofs = sz;
170         outp = inp - ofs*nch;
171         if( outp < bfr ) outp += sz*nch;
172 }
173
174 float *FFAudioStream::get_outp(int ofs)
175 {
176         float *ret = outp;
177         outp += ofs*nch;
178         return ret;
179 }
180
181 int64_t FFAudioStream::put_inp(int ofs)
182 {
183         inp += ofs*nch;
184         return (inp-outp) / nch;
185 }
186
187 int FFAudioStream::write(const float *fp, long len)
188 {
189         long n = len * nch;
190         float *ip = inp;
191         while( n > 0 ) {
192                 int k = lmt - ip;
193                 if( k > n ) k = n;
194                 n -= k;
195                 while( --k >= 0 ) *ip++ = *fp++;
196                 if( ip >= lmt ) ip = bfr;
197         }
198         inp = ip;
199         hpos += len;
200         return len;
201 }
202
203 int FFAudioStream::zero(long len)
204 {
205         long n = len * nch;
206         float *ip = inp;
207         while( n > 0 ) {
208                 int k = lmt - ip;
209                 if( k > n ) k = n;
210                 n -= k;
211                 while( --k >= 0 ) *ip++ = 0;
212                 if( ip >= lmt ) ip = bfr;
213         }
214         inp = ip;
215         hpos += len;
216         return len;
217 }
218
219 // does not advance outp
220 int FFAudioStream::read(double *dp, long len, int ch)
221 {
222         long n = len;
223         float *op = outp + ch;
224         float *lmt1 = lmt + nch-1;
225         while( n > 0 ) {
226                 int k = (lmt1 - op) / nch;
227                 if( k > n ) k = n;
228                 n -= k;
229                 while( --k >= 0 ) { *dp++ = *op;  op += nch; }
230                 if( op >= lmt ) op -= sz*nch;
231         }
232         return len;
233 }
234
235 // load linear buffer, no wrapping allowed, does not advance inp
236 int FFAudioStream::write(const double *dp, long len, int ch)
237 {
238         long n = len;
239         float *ip = inp + ch;
240         while( --n >= 0 ) { *ip = *dp++;  ip += nch; }
241         return len;
242 }
243
244
245 FFStream::FFStream(FFMPEG *ffmpeg, AVStream *st, int fidx)
246 {
247         this->ffmpeg = ffmpeg;
248         this->st = st;
249         this->fidx = fidx;
250         frm_lock = new Mutex("FFStream::frm_lock");
251         fmt_ctx = 0;
252         avctx = 0;
253         filter_graph = 0;
254         buffersrc_ctx = 0;
255         buffersink_ctx = 0;
256         frm_count = 0;
257         nudge = AV_NOPTS_VALUE;
258         seek_pos = curr_pos = 0;
259         seeked = 1;  eof = 0;
260         reading = writing = 0;
261         flushed = 0;
262         need_packet = 1;
263         frame = fframe = 0;
264         bsfc = 0;
265         stats_fp = 0;
266         stats_filename = 0;
267         stats_in = 0;
268         pass = 0;
269 }
270
271 FFStream::~FFStream()
272 {
273         if( reading > 0 || writing > 0 ) avcodec_close(avctx);
274         if( avctx ) avcodec_free_context(&avctx);
275         if( fmt_ctx ) avformat_close_input(&fmt_ctx);
276         if( bsfc ) av_bsf_free(&bsfc);
277         while( frms.first ) frms.remove(frms.first);
278         if( filter_graph ) avfilter_graph_free(&filter_graph);
279         if( frame ) av_frame_free(&frame);
280         if( fframe ) av_frame_free(&fframe);
281         delete frm_lock;
282         if( stats_fp ) fclose(stats_fp);
283         if( stats_in ) av_freep(&stats_in);
284         delete [] stats_filename;
285 }
286
287 void FFStream::ff_lock(const char *cp)
288 {
289         FFMPEG::fflock.lock(cp);
290 }
291
292 void FFStream::ff_unlock()
293 {
294         FFMPEG::fflock.unlock();
295 }
296
297 void FFStream::queue(FFrame *frm)
298 {
299         frm_lock->lock("FFStream::queue");
300         frms.append(frm);
301         ++frm_count;
302         frm_lock->unlock();
303         ffmpeg->mux_lock->unlock();
304 }
305
306 void FFStream::dequeue(FFrame *frm)
307 {
308         frm_lock->lock("FFStream::dequeue");
309         --frm_count;
310         frms.remove_pointer(frm);
311         frm_lock->unlock();
312 }
313
314 int FFStream::encode_activate()
315 {
316         if( writing < 0 )
317                 writing = ffmpeg->encode_activate();
318         return writing;
319 }
320
321 int FFStream::decode_activate()
322 {
323         if( reading < 0 && (reading=ffmpeg->decode_activate()) > 0 ) {
324                 ff_lock("FFStream::decode_activate");
325                 reading = 0;
326                 AVDictionary *copts = 0;
327                 av_dict_copy(&copts, ffmpeg->opts, 0);
328                 int ret = 0;
329                 // this should be avformat_copy_context(), but no copy avail
330                 ret = avformat_open_input(&fmt_ctx,
331                         ffmpeg->fmt_ctx->url, ffmpeg->fmt_ctx->iformat, &copts);
332                 if( ret >= 0 ) {
333                         ret = avformat_find_stream_info(fmt_ctx, 0);
334                         st = fmt_ctx->streams[fidx];
335                         load_markers();
336                 }
337                 if( ret >= 0 && st != 0 ) {
338                         AVCodecID codec_id = st->codecpar->codec_id;
339                         AVCodec *decoder = avcodec_find_decoder(codec_id);
340                         avctx = avcodec_alloc_context3(decoder);
341                         if( !avctx ) {
342                                 eprintf(_("cant allocate codec context\n"));
343                                 ret = AVERROR(ENOMEM);
344                         }
345                         if( ret >= 0 ) {
346                                 avcodec_parameters_to_context(avctx, st->codecpar);
347                                 if( !av_dict_get(copts, "threads", NULL, 0) )
348                                         avctx->thread_count = ffmpeg->ff_cpus();
349                                 ret = avcodec_open2(avctx, decoder, &copts);
350                         }
351                         if( ret >= 0 ) {
352                                 reading = 1;
353                         }
354                         else
355                                 eprintf(_("open decoder failed\n"));
356                 }
357                 else
358                         eprintf(_("can't clone input file\n"));
359                 av_dict_free(&copts);
360                 ff_unlock();
361         }
362         return reading;
363 }
364
365 int FFStream::read_packet()
366 {
367         av_packet_unref(ipkt);
368         int ret = av_read_frame(fmt_ctx, ipkt);
369         if( ret < 0 ) {
370                 st_eof(1);
371                 if( ret == AVERROR_EOF ) return 0;
372                 ff_err(ret, "FFStream::read_packet: av_read_frame failed\n");
373                 flushed = 1;
374                 return -1;
375         }
376         return 1;
377 }
378
379 int FFStream::decode(AVFrame *frame)
380 {
381         int ret = 0;
382         int retries = MAX_RETRY;
383
384         while( ret >= 0 && !flushed && --retries >= 0 ) {
385                 if( need_packet ) {
386                         if( (ret=read_packet()) < 0 ) break;
387                         AVPacket *pkt = ret > 0 ? (AVPacket*)ipkt : 0;
388                         if( pkt ) {
389                                 if( pkt->stream_index != st->index ) continue;
390                                 if( !pkt->data | !pkt->size ) continue;
391                         }
392                         if( (ret=avcodec_send_packet(avctx, pkt)) < 0 ) {
393                                 ff_err(ret, "FFStream::decode: avcodec_send_packet failed\n");
394                                 break;
395                         }
396                         need_packet = 0;
397                         retries = MAX_RETRY;
398                 }
399                 if( (ret=decode_frame(frame)) > 0 ) break;
400                 if( !ret ) {
401                         need_packet = 1;
402                         flushed = st_eof();
403                 }
404         }
405
406         if( retries < 0 ) {
407                 fprintf(stderr, "FFStream::decode: Retry limit\n");
408                 ret = 0;
409         }
410         if( ret < 0 )
411                 fprintf(stderr, "FFStream::decode: failed\n");
412         return ret;
413 }
414
415 int FFStream::load_filter(AVFrame *frame)
416 {
417         int ret = av_buffersrc_add_frame_flags(buffersrc_ctx, frame, 0);
418         if( ret < 0 )
419                 eprintf(_("av_buffersrc_add_frame_flags failed\n"));
420         return ret;
421 }
422
423 int FFStream::read_filter(AVFrame *frame)
424 {
425         int ret = av_buffersink_get_frame(buffersink_ctx, frame);
426         if( ret < 0 ) {
427                 if( ret == AVERROR(EAGAIN) ) return 0;
428                 if( ret == AVERROR_EOF ) { st_eof(1); return -1; }
429                 ff_err(ret, "FFStream::read_filter: av_buffersink_get_frame failed\n");
430                 return ret;
431         }
432         return 1;
433 }
434
435 int FFStream::read_frame(AVFrame *frame)
436 {
437         av_frame_unref(frame);
438         if( !filter_graph || !buffersrc_ctx || !buffersink_ctx )
439                 return decode(frame);
440         if( !fframe && !(fframe=av_frame_alloc()) ) {
441                 fprintf(stderr, "FFStream::read_frame: av_frame_alloc failed\n");
442                 return -1;
443         }
444         int ret = -1;
445         while( !flushed && !(ret=read_filter(frame)) ) {
446                 if( (ret=decode(fframe)) < 0 ) break;
447                 if( ret > 0 && (ret=load_filter(fframe)) < 0 ) break;
448         }
449         return ret;
450 }
451
452 int FFStream::write_packet(FFPacket &pkt)
453 {
454         int ret = 0;
455         if( !bsfc ) {
456                 av_packet_rescale_ts(pkt, avctx->time_base, st->time_base);
457                 pkt->stream_index = st->index;
458                 ret = av_interleaved_write_frame(ffmpeg->fmt_ctx, pkt);
459         }
460         else {
461                 ret = av_bsf_send_packet(bsfc, pkt);
462                 while( ret >= 0 ) {
463                         FFPacket bs;
464                         if( (ret=av_bsf_receive_packet(bsfc, bs)) < 0 ) {
465                                 if( ret == AVERROR(EAGAIN) ) return 0;
466                                 if( ret == AVERROR_EOF ) return -1;
467                                 break;
468                         }
469                         av_packet_rescale_ts(bs, avctx->time_base, st->time_base);
470                         bs->stream_index = st->index;
471                         ret = av_interleaved_write_frame(ffmpeg->fmt_ctx, bs);
472                 }
473         }
474         if( ret < 0 )
475                 ff_err(ret, "FFStream::write_packet: write packet failed\n");
476         return ret;
477 }
478
479 int FFStream::encode_frame(AVFrame *frame)
480 {
481         int pkts = 0, ret = 0;
482         for( int retry=100; --retry>=0; ) {
483                 if( frame || !pkts )
484                         ret = avcodec_send_frame(avctx, frame);
485                 if( !ret && frame ) return pkts;
486                 if( ret < 0 && ret != AVERROR(EAGAIN) ) break;
487                 FFPacket opkt;
488                 ret = avcodec_receive_packet(avctx, opkt);
489                 if( !frame && ret == AVERROR_EOF ) return pkts;
490                 if( ret < 0 ) break;
491                 ret = write_packet(opkt);
492                 if( ret < 0 ) break;
493                 ++pkts;
494                 if( frame && stats_fp ) {
495                         ret = write_stats_file();
496                         if( ret < 0 ) break;
497                 }
498         }
499         ff_err(ret, "FFStream::encode_frame: encode failed\n");
500         return -1;
501 }
502
503 int FFStream::flush()
504 {
505         if( writing < 0 )
506                 return -1;
507         int ret = encode_frame(0);
508         if( ret >= 0 && stats_fp ) {
509                 ret = write_stats_file();
510                 close_stats_file();
511         }
512         if( ret < 0 )
513                 ff_err(ret, "FFStream::flush");
514         return ret >= 0 ? 0 : 1;
515 }
516
517
518 int FFStream::open_stats_file()
519 {
520         stats_fp = fopen(stats_filename,"w");
521         return stats_fp ? 0 : AVERROR(errno);
522 }
523
524 int FFStream::close_stats_file()
525 {
526         if( stats_fp ) {
527                 fclose(stats_fp);  stats_fp = 0;
528         }
529         return 0;
530 }
531
532 int FFStream::read_stats_file()
533 {
534         int64_t len = 0;  struct stat stats_st;
535         int fd = open(stats_filename, O_RDONLY);
536         int ret = fd >= 0 ? 0: ENOENT;
537         if( !ret && fstat(fd, &stats_st) )
538                 ret = EINVAL;
539         if( !ret ) {
540                 len = stats_st.st_size;
541                 stats_in = (char *)av_malloc(len+1);
542                 if( !stats_in )
543                         ret = ENOMEM;
544         }
545         if( !ret && read(fd, stats_in, len+1) != len )
546                 ret = EIO;
547         if( !ret ) {
548                 stats_in[len] = 0;
549                 avctx->stats_in = stats_in;
550         }
551         if( fd >= 0 )
552                 close(fd);
553         return !ret ? 0 : AVERROR(ret);
554 }
555
556 int FFStream::write_stats_file()
557 {
558         int ret = 0;
559         if( avctx->stats_out && (ret=strlen(avctx->stats_out)) > 0 ) {
560                 int len = fwrite(avctx->stats_out, 1, ret, stats_fp);
561                 if( ret != len )
562                         ff_err(ret = AVERROR(errno), "FFStream::write_stats_file");
563         }
564         return ret;
565 }
566
567 int FFStream::init_stats_file()
568 {
569         int ret = 0;
570         if( (pass & 2) && (ret = read_stats_file()) < 0 )
571                 ff_err(ret, "stat file read: %s", stats_filename);
572         if( (pass & 1) && (ret=open_stats_file()) < 0 )
573                 ff_err(ret, "stat file open: %s", stats_filename);
574         return ret >= 0 ? 0 : ret;
575 }
576
577 int FFStream::seek(int64_t no, double rate)
578 {
579 // default ffmpeg native seek
580         int npkts = 1;
581         int64_t pos = no, pkt_pos = -1;
582         IndexMarks *index_markers = get_markers();
583         if( index_markers && index_markers->size() > 1 ) {
584                 IndexMarks &marks = *index_markers;
585                 int i = marks.find(pos);
586                 int64_t n = i < 0 ? (i=0) : marks[i].no;
587 // if indexed seek point not too far away (<30 secs), use index
588                 if( no-n < 30*rate ) {
589                         if( n < 0 ) n = 0;
590                         pos = n;
591                         if( i < marks.size() ) pkt_pos = marks[i].pos;
592                         npkts = MAX_RETRY;
593                 }
594         }
595         if( pos == curr_pos ) return 0;
596         double secs = pos < 0 ? 0. : pos / rate;
597         AVRational time_base = st->time_base;
598         int64_t tstmp = time_base.num > 0 ? secs * time_base.den/time_base.num : 0;
599         if( !tstmp ) {
600                 if( st->nb_index_entries > 0 ) tstmp = st->index_entries[0].timestamp;
601                 else if( st->start_time != AV_NOPTS_VALUE ) tstmp = st->start_time;
602                 else if( st->first_dts != AV_NOPTS_VALUE ) tstmp = st->first_dts;
603                 else tstmp = INT64_MIN+1;
604         }
605         else if( nudge != AV_NOPTS_VALUE ) tstmp += nudge;
606         int idx = st->index;
607 #if 0
608 // seek all streams using the default timebase.
609 //   this is how ffmpeg and ffplay work.  stream seeks are less tested.
610         tstmp = av_rescale_q(tstmp, time_base, AV_TIME_BASE_Q);
611         idx = -1;
612 #endif
613
614         avcodec_flush_buffers(avctx);
615         avformat_flush(fmt_ctx);
616 #if 0
617         int64_t seek = tstmp;
618         int flags = AVSEEK_FLAG_ANY;
619         if( !(fmt_ctx->iformat->flags & AVFMT_NO_BYTE_SEEK) && pkt_pos >= 0 ) {
620                 seek = pkt_pos;
621                 flags = AVSEEK_FLAG_BYTE;
622         }
623         int ret = avformat_seek_file(fmt_ctx, st->index, -INT64_MAX, seek, INT64_MAX, flags);
624 #else
625 // finds the first index frame below the target time
626         int flags = AVSEEK_FLAG_BACKWARD | AVSEEK_FLAG_ANY;
627         int ret = av_seek_frame(fmt_ctx, idx, tstmp, flags);
628 #endif
629         int retry = MAX_RETRY;
630         while( ret >= 0 ) {
631                 need_packet = 0;  flushed = 0;
632                 seeked = 1;  st_eof(0);
633 // read up to retry packets, limited to npkts in stream, and not pkt.pos past pkt_pos
634                 while( --retry >= 0 ) {
635                         if( read_packet() <= 0 ) { ret = -1;  break; }
636                         if( ipkt->stream_index != st->index ) continue;
637                         if( !ipkt->data || !ipkt->size ) continue;
638                         if( pkt_pos >= 0 && ipkt->pos >= pkt_pos ) break;
639                         if( --npkts <= 0 ) break;
640                         int64_t pkt_ts = ipkt->dts != AV_NOPTS_VALUE ? ipkt->dts : ipkt->pts;
641                         if( pkt_ts == AV_NOPTS_VALUE ) continue;
642                         if( pkt_ts >= tstmp ) break;
643                 }
644                 if( retry < 0 ) {
645                         fprintf(stderr,"FFStream::seek: retry limit, pos=%jd tstmp=%jd\n",pos,tstmp);
646                         ret = -1;
647                 }
648                 if( ret < 0 ) break;
649                 ret = avcodec_send_packet(avctx, ipkt);
650                 if( !ret ) break;
651 //some codecs need more than one pkt to resync
652                 if( ret == AVERROR_INVALIDDATA ) ret = 0;
653                 if( ret < 0 ) {
654                         ff_err(ret, "FFStream::avcodec_send_packet failed\n");
655                         break;
656                 }
657         }
658         if( ret < 0 ) {
659 printf("** seek fail %jd, %jd\n", pos, tstmp);
660                 seeked = need_packet = 0;
661                 st_eof(flushed=1);
662                 return -1;
663         }
664 //printf("seeked pos = %ld, %ld\n", pos, tstmp);
665         seek_pos = curr_pos = pos;
666         return 0;
667 }
668
669 FFAudioStream::FFAudioStream(FFMPEG *ffmpeg, AVStream *strm, int idx, int fidx)
670  : FFStream(ffmpeg, strm, fidx)
671 {
672         this->idx = idx;
673         channel0 = channels = 0;
674         sample_rate = 0;
675         mbsz = 0;
676         frame_sz = AUDIO_MIN_FRAME_SZ;
677         length = 0;
678         resample_context = 0;
679         swr_ichs = swr_ifmt = swr_irate = 0;
680
681         aud_bfr_sz = 0;
682         aud_bfr = 0;
683
684 // history buffer
685         nch = 2;
686         sz = 0x10000;
687         long bsz = sz * nch;
688         bfr = new float[bsz];
689         lmt = bfr + bsz;
690         reset_history();
691 }
692
693 FFAudioStream::~FFAudioStream()
694 {
695         if( resample_context ) swr_free(&resample_context);
696         delete [] aud_bfr;
697         delete [] bfr;
698 }
699
700 void FFAudioStream::init_swr(int ichs, int ifmt, int irate)
701 {
702         if( resample_context ) {
703                 if( swr_ichs == ichs && swr_ifmt == ifmt && swr_irate == irate )
704                         return;
705                 swr_free(&resample_context);
706         }
707         swr_ichs = ichs;  swr_ifmt = ifmt;  swr_irate = irate;
708         if( ichs == channels && ifmt == AV_SAMPLE_FMT_FLT && irate == sample_rate )
709                 return;
710         uint64_t ilayout = av_get_default_channel_layout(ichs);
711         if( !ilayout ) ilayout = ((uint64_t)1<<ichs) - 1;
712         uint64_t olayout = av_get_default_channel_layout(channels);
713         if( !olayout ) olayout = ((uint64_t)1<<channels) - 1;
714         resample_context = swr_alloc_set_opts(NULL,
715                 olayout, AV_SAMPLE_FMT_FLT, sample_rate,
716                 ilayout, (AVSampleFormat)ifmt, irate,
717                 0, NULL);
718         if( resample_context )
719                 swr_init(resample_context);
720 }
721
722 int FFAudioStream::get_samples(float *&samples, uint8_t **data, int len)
723 {
724         samples = *(float **)data;
725         if( resample_context ) {
726                 if( len > aud_bfr_sz ) {
727                         delete [] aud_bfr;
728                         aud_bfr = 0;
729                 }
730                 if( !aud_bfr ) {
731                         aud_bfr_sz = len;
732                         aud_bfr = new float[aud_bfr_sz*channels];
733                 }
734                 int ret = swr_convert(resample_context,
735                         (uint8_t**)&aud_bfr, aud_bfr_sz, (const uint8_t**)data, len);
736                 if( ret < 0 ) {
737                         ff_err(ret, "FFAudioStream::get_samples: swr_convert failed\n");
738                         return -1;
739                 }
740                 samples = aud_bfr;
741                 len = ret;
742         }
743         return len;
744 }
745
746 int FFAudioStream::load_history(uint8_t **data, int len)
747 {
748         float *samples;
749         len = get_samples(samples, data, len);
750         if( len > 0 ) {
751                 // biggest user bfr since seek + frame
752                 realloc(mbsz + len + 1, channels);
753                 write(samples, len);
754         }
755         return len;
756 }
757
758 int FFAudioStream::decode_frame(AVFrame *frame)
759 {
760         int first_frame = seeked;  seeked = 0;
761         int ret = avcodec_receive_frame(avctx, frame);
762         if( ret < 0 ) {
763                 if( first_frame || ret == AVERROR(EAGAIN) ) return 0;
764                 if( ret == AVERROR_EOF ) { st_eof(1); return 0; }
765                 ff_err(ret, "FFAudioStream::decode_frame: Could not read audio frame\n");
766                 return -1;
767         }
768         int64_t pkt_ts = frame->best_effort_timestamp;
769         if( pkt_ts != AV_NOPTS_VALUE )
770                 curr_pos = ffmpeg->to_secs(pkt_ts - nudge, st->time_base) * sample_rate + 0.5;
771         return 1;
772 }
773
774 int FFAudioStream::encode_activate()
775 {
776         if( writing >= 0 ) return writing;
777         if( !avctx->codec ) return writing = 0;
778         frame_sz = avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE ?
779                 10000 : avctx->frame_size;
780         return FFStream::encode_activate();
781 }
782
783 int64_t FFAudioStream::load_buffer(double ** const sp, int len)
784 {
785         reserve(len+1, st->codecpar->channels);
786         for( int ch=0; ch<nch; ++ch )
787                 write(sp[ch], len, ch);
788         return put_inp(len);
789 }
790
791 int FFAudioStream::in_history(int64_t pos)
792 {
793         if( pos > curr_pos ) return 0;
794         int64_t len = hpos;
795         if( len > sz ) len = sz;
796         if( pos < curr_pos - len ) return 0;
797         return 1;
798 }
799
800
801 int FFAudioStream::init_frame(AVFrame *frame)
802 {
803         frame->nb_samples = frame_sz;
804         frame->format = avctx->sample_fmt;
805         frame->channel_layout = avctx->channel_layout;
806         frame->sample_rate = avctx->sample_rate;
807         int ret = av_frame_get_buffer(frame, 0);
808         if (ret < 0)
809                 ff_err(ret, "FFAudioStream::init_frame: av_frame_get_buffer failed\n");
810         return ret;
811 }
812
813 int FFAudioStream::load(int64_t pos, int len)
814 {
815         if( audio_seek(pos) < 0 ) return -1;
816         if( !frame && !(frame=av_frame_alloc()) ) {
817                 fprintf(stderr, "FFAudioStream::load: av_frame_alloc failed\n");
818                 return -1;
819         }
820         if( mbsz < len ) mbsz = len;
821         int64_t end_pos = pos + len;
822         int ret = 0, i = len / frame_sz + MAX_RETRY;
823         while( ret>=0 && !flushed && curr_pos<end_pos && --i>=0 ) {
824                 ret = read_frame(frame);
825                 if( ret > 0 && frame->nb_samples > 0 ) {
826                         init_swr(frame->channels, frame->format, frame->sample_rate);
827                         load_history(&frame->extended_data[0], frame->nb_samples);
828                         curr_pos += frame->nb_samples;
829                 }
830         }
831         if( end_pos > curr_pos ) {
832                 zero(end_pos - curr_pos);
833                 curr_pos = end_pos;
834         }
835         len = curr_pos - pos;
836         iseek(len);
837         return len;
838 }
839
840 int FFAudioStream::audio_seek(int64_t pos)
841 {
842         if( decode_activate() <= 0 ) return -1;
843         if( !st->codecpar ) return -1;
844         if( in_history(pos) ) return 0;
845         if( pos == curr_pos ) return 0;
846         reset_history();  mbsz = 0;
847 // guarentee preload > 1sec samples
848         if( seek(pos-sample_rate, sample_rate) < 0 ) return -1;
849         return 1;
850 }
851
852 int FFAudioStream::encode(double **samples, int len)
853 {
854         if( encode_activate() <= 0 ) return -1;
855         ffmpeg->flow_ctl();
856         int ret = 0;
857         int64_t count = samples ? load_buffer(samples, len) : used();
858         int frame_sz1 = samples ? frame_sz-1 : 0;
859         FFrame *frm = 0;
860
861         while( ret >= 0 && count > frame_sz1 ) {
862                 frm = new FFrame(this);
863                 if( (ret=frm->initted()) < 0 ) break;
864                 AVFrame *frame = *frm;
865                 len = count >= frame_sz ? frame_sz : count;
866                 float *bfrp = get_outp(len);
867                 ret =  swr_convert(resample_context,
868                         (uint8_t **)frame->extended_data, len,
869                         (const uint8_t **)&bfrp, len);
870                 if( ret < 0 ) {
871                         ff_err(ret, "FFAudioStream::encode: swr_convert failed\n");
872                         break;
873                 }
874                 frame->nb_samples = len;
875                 frm->queue(curr_pos);
876                 frm = 0;
877                 curr_pos += len;
878                 count -= len;
879         }
880
881         delete frm;
882         return ret >= 0 ? 0 : 1;
883 }
884
885 int FFAudioStream::drain()
886 {
887         return encode(0,0);
888 }
889
890 int FFAudioStream::encode_frame(AVFrame *frame)
891 {
892         return FFStream::encode_frame(frame);
893 }
894
895 int FFAudioStream::write_packet(FFPacket &pkt)
896 {
897         return FFStream::write_packet(pkt);
898 }
899
900 void FFAudioStream::load_markers()
901 {
902         IndexState *index_state = ffmpeg->file_base->asset->index_state;
903         if( !index_state || idx >= index_state->audio_markers.size() ) return;
904         if( index_state->marker_status == MARKERS_NOTTESTED ) return;
905         FFStream::load_markers(*index_state->audio_markers[idx], sample_rate);
906 }
907
908 IndexMarks *FFAudioStream::get_markers()
909 {
910         IndexState *index_state = ffmpeg->file_base->asset->index_state;
911         if( !index_state || idx >= index_state->audio_markers.size() ) return 0;
912         return index_state->audio_markers[idx];
913 }
914
915 FFVideoStream::FFVideoStream(FFMPEG *ffmpeg, AVStream *strm, int idx, int fidx)
916  : FFStream(ffmpeg, strm, fidx)
917 {
918         this->idx = idx;
919         width = height = 0;
920         frame_rate = 0;
921         aspect_ratio = 0;
922         length = 0;
923         interlaced = 0;
924         top_field_first = 0;
925 }
926
927 FFVideoStream::~FFVideoStream()
928 {
929 }
930
931 int FFVideoStream::decode_frame(AVFrame *frame)
932 {
933         int first_frame = seeked;  seeked = 0;
934         int ret = avcodec_receive_frame(avctx, frame);
935         if( ret < 0 ) {
936                 if( first_frame || ret == AVERROR(EAGAIN) ) return 0;
937                 if( ret == AVERROR(EAGAIN) ) return 0;
938                 if( ret == AVERROR_EOF ) { st_eof(1); return 0; }
939                 ff_err(ret, "FFVideoStream::decode_frame: Could not read video frame\n");
940                 return -1;
941         }
942         int64_t pkt_ts = frame->best_effort_timestamp;
943         if( pkt_ts != AV_NOPTS_VALUE )
944                 curr_pos = ffmpeg->to_secs(pkt_ts - nudge, st->time_base) * frame_rate + 0.5;
945         return 1;
946 }
947
948 int FFVideoStream::load(VFrame *vframe, int64_t pos)
949 {
950         int ret = video_seek(pos);
951         if( ret < 0 ) return -1;
952         if( !frame && !(frame=av_frame_alloc()) ) {
953                 fprintf(stderr, "FFVideoStream::load: av_frame_alloc failed\n");
954                 return -1;
955         }
956         int i = MAX_RETRY + pos - curr_pos;
957         while( ret>=0 && !flushed && curr_pos<=pos && --i>=0 ) {
958                 ret = read_frame(frame);
959                 if( ret > 0 ) ++curr_pos;
960         }
961         if( frame->format == AV_PIX_FMT_NONE || frame->width <= 0 || frame->height <= 0 )
962                 ret = -1;
963         if( ret >= 0 ) {
964                 ret = convert_cmodel(vframe, frame);
965         }
966         ret = ret > 0 ? 1 : ret < 0 ? -1 : 0;
967         return ret;
968 }
969
970 int FFVideoStream::video_seek(int64_t pos)
971 {
972         if( decode_activate() <= 0 ) return -1;
973         if( !st->codecpar ) return -1;
974         if( pos == curr_pos-1 && !seeked ) return 0;
975 // if close enough, just read up to current
976         int gop = avctx->gop_size;
977         if( gop < 4 ) gop = 4;
978         if( gop > 64 ) gop = 64;
979         int read_limit = curr_pos + 3*gop;
980         if( pos >= curr_pos && pos <= read_limit ) return 0;
981 // guarentee preload more than 2*gop frames
982         if( seek(pos - 3*gop, frame_rate) < 0 ) return -1;
983         return 1;
984 }
985
986 int FFVideoStream::init_frame(AVFrame *picture)
987 {
988         picture->format = avctx->pix_fmt;
989         picture->width  = avctx->width;
990         picture->height = avctx->height;
991         int ret = av_frame_get_buffer(picture, 32);
992         return ret;
993 }
994
995 int FFVideoStream::encode(VFrame *vframe)
996 {
997         if( encode_activate() <= 0 ) return -1;
998         ffmpeg->flow_ctl();
999         FFrame *picture = new FFrame(this);
1000         int ret = picture->initted();
1001         if( ret >= 0 ) {
1002                 AVFrame *frame = *picture;
1003                 frame->pts = curr_pos;
1004                 ret = convert_pixfmt(vframe, frame);
1005         }
1006         if( ret >= 0 ) {
1007                 picture->queue(curr_pos);
1008                 ++curr_pos;
1009         }
1010         else {
1011                 fprintf(stderr, "FFVideoStream::encode: encode failed\n");
1012                 delete picture;
1013         }
1014         return ret >= 0 ? 0 : 1;
1015 }
1016
1017 int FFVideoStream::drain()
1018 {
1019         return 0;
1020 }
1021
1022 int FFVideoStream::encode_frame(AVFrame *frame)
1023 {
1024         if( frame ) {
1025                 frame->interlaced_frame = interlaced;
1026                 frame->top_field_first = top_field_first;
1027         }
1028         return FFStream::encode_frame(frame);
1029 }
1030
1031 int FFVideoStream::write_packet(FFPacket &pkt)
1032 {
1033         if( !(ffmpeg->fmt_ctx->oformat->flags & AVFMT_VARIABLE_FPS) )
1034                 pkt->duration = 1;
1035         return FFStream::write_packet(pkt);
1036 }
1037
1038 AVPixelFormat FFVideoConvert::color_model_to_pix_fmt(int color_model)
1039 {
1040         switch( color_model ) {
1041         case BC_YUV422:         return AV_PIX_FMT_YUYV422;
1042         case BC_RGB888:         return AV_PIX_FMT_RGB24;
1043         case BC_RGBA8888:       return AV_PIX_FMT_RGBA;
1044         case BC_BGR8888:        return AV_PIX_FMT_BGR0;
1045         case BC_BGR888:         return AV_PIX_FMT_BGR24;
1046         case BC_ARGB8888:       return AV_PIX_FMT_ARGB;
1047         case BC_ABGR8888:       return AV_PIX_FMT_ABGR;
1048         case BC_RGB8:           return AV_PIX_FMT_RGB8;
1049         case BC_YUV420P:        return AV_PIX_FMT_YUV420P;
1050         case BC_YUV422P:        return AV_PIX_FMT_YUV422P;
1051         case BC_YUV444P:        return AV_PIX_FMT_YUV444P;
1052         case BC_YUV411P:        return AV_PIX_FMT_YUV411P;
1053         case BC_RGB565:         return AV_PIX_FMT_RGB565;
1054         case BC_RGB161616:      return AV_PIX_FMT_RGB48LE;
1055         case BC_RGBA16161616:   return AV_PIX_FMT_RGBA64LE;
1056         case BC_AYUV16161616:   return AV_PIX_FMT_AYUV64LE;
1057         case BC_GBRP:           return AV_PIX_FMT_GBRP;
1058         default: break;
1059         }
1060
1061         return AV_PIX_FMT_NB;
1062 }
1063
1064 int FFVideoConvert::pix_fmt_to_color_model(AVPixelFormat pix_fmt)
1065 {
1066         switch (pix_fmt) {
1067         case AV_PIX_FMT_YUYV422:        return BC_YUV422;
1068         case AV_PIX_FMT_RGB24:          return BC_RGB888;
1069         case AV_PIX_FMT_RGBA:           return BC_RGBA8888;
1070         case AV_PIX_FMT_BGR0:           return BC_BGR8888;
1071         case AV_PIX_FMT_BGR24:          return BC_BGR888;
1072         case AV_PIX_FMT_ARGB:           return BC_ARGB8888;
1073         case AV_PIX_FMT_ABGR:           return BC_ABGR8888;
1074         case AV_PIX_FMT_RGB8:           return BC_RGB8;
1075         case AV_PIX_FMT_YUV420P:        return BC_YUV420P;
1076         case AV_PIX_FMT_YUV422P:        return BC_YUV422P;
1077         case AV_PIX_FMT_YUV444P:        return BC_YUV444P;
1078         case AV_PIX_FMT_YUV411P:        return BC_YUV411P;
1079         case AV_PIX_FMT_RGB565:         return BC_RGB565;
1080         case AV_PIX_FMT_RGB48LE:        return BC_RGB161616;
1081         case AV_PIX_FMT_RGBA64LE:       return BC_RGBA16161616;
1082         case AV_PIX_FMT_AYUV64LE:       return BC_AYUV16161616;
1083         case AV_PIX_FMT_GBRP:           return BC_GBRP;
1084         default: break;
1085         }
1086
1087         return -1;
1088 }
1089
1090 int FFVideoConvert::convert_picture_vframe(VFrame *frame, AVFrame *ip)
1091 {
1092         AVFrame *ipic = av_frame_alloc();
1093         int ret = convert_picture_vframe(frame, ip, ipic);
1094         av_frame_free(&ipic);
1095         return ret;
1096 }
1097
1098 int FFVideoConvert::convert_picture_vframe(VFrame *frame, AVFrame *ip, AVFrame *ipic)
1099 {
1100         int cmodel = frame->get_color_model();
1101         AVPixelFormat ofmt = color_model_to_pix_fmt(cmodel);
1102         if( ofmt == AV_PIX_FMT_NB ) return -1;
1103         int size = av_image_fill_arrays(ipic->data, ipic->linesize,
1104                 frame->get_data(), ofmt, frame->get_w(), frame->get_h(), 1);
1105         if( size < 0 ) return -1;
1106
1107         int bpp = BC_CModels::calculate_pixelsize(cmodel);
1108         int ysz = bpp * frame->get_w(), usz = ysz;
1109         switch( cmodel ) {
1110         case BC_YUV410P:
1111         case BC_YUV411P:
1112                 usz /= 2;
1113         case BC_YUV420P:
1114         case BC_YUV422P:
1115                 usz /= 2;
1116         case BC_YUV444P:
1117                 // override av_image_fill_arrays() for planar types
1118                 ipic->data[0] = frame->get_y();  ipic->linesize[0] = ysz;
1119                 ipic->data[1] = frame->get_u();  ipic->linesize[1] = usz;
1120                 ipic->data[2] = frame->get_v();  ipic->linesize[2] = usz;
1121                 break;
1122         default:
1123                 ipic->data[0] = frame->get_data();
1124                 ipic->linesize[0] = frame->get_bytes_per_line();
1125                 break;
1126         }
1127
1128         AVPixelFormat pix_fmt = (AVPixelFormat)ip->format;
1129         convert_ctx = sws_getCachedContext(convert_ctx, ip->width, ip->height, pix_fmt,
1130                 frame->get_w(), frame->get_h(), ofmt, SWS_POINT, NULL, NULL, NULL);
1131         if( !convert_ctx ) {
1132                 fprintf(stderr, "FFVideoConvert::convert_picture_frame:"
1133                                 " sws_getCachedContext() failed\n");
1134                 return -1;
1135         }
1136         int ret = sws_scale(convert_ctx, ip->data, ip->linesize, 0, ip->height,
1137             ipic->data, ipic->linesize);
1138         if( ret < 0 ) {
1139                 ff_err(ret, "FFVideoConvert::convert_picture_frame: sws_scale() failed\n");
1140                 return -1;
1141         }
1142         return 0;
1143 }
1144
1145 int FFVideoConvert::convert_cmodel(VFrame *frame, AVFrame *ip)
1146 {
1147         // try direct transfer
1148         if( !convert_picture_vframe(frame, ip) ) return 1;
1149         // use indirect transfer
1150         AVPixelFormat ifmt = (AVPixelFormat)ip->format;
1151         const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(ifmt);
1152         int max_bits = 0;
1153         for( int i = 0; i <desc->nb_components; ++i ) {
1154                 int bits = desc->comp[i].depth;
1155                 if( bits > max_bits ) max_bits = bits;
1156         }
1157         int imodel = pix_fmt_to_color_model(ifmt);
1158         int imodel_is_yuv = BC_CModels::is_yuv(imodel);
1159         int cmodel = frame->get_color_model();
1160         int cmodel_is_yuv = BC_CModels::is_yuv(cmodel);
1161         if( imodel < 0 || imodel_is_yuv != cmodel_is_yuv ) {
1162                 imodel = cmodel_is_yuv ?
1163                     (BC_CModels::has_alpha(cmodel) ?
1164                         BC_AYUV16161616 :
1165                         (max_bits > 8 ? BC_AYUV16161616 : BC_YUV444P)) :
1166                     (BC_CModels::has_alpha(cmodel) ?
1167                         (max_bits > 8 ? BC_RGBA16161616 : BC_RGBA8888) :
1168                         (max_bits > 8 ? BC_RGB161616 : BC_RGB888)) ;
1169         }
1170         VFrame vframe(ip->width, ip->height, imodel);
1171         if( convert_picture_vframe(&vframe, ip) ) return -1;
1172         frame->transfer_from(&vframe);
1173         return 1;
1174 }
1175
1176 int FFVideoConvert::transfer_cmodel(VFrame *frame, AVFrame *ifp)
1177 {
1178         int ret = convert_cmodel(frame, ifp);
1179         if( ret > 0 ) {
1180                 const AVDictionary *src = ifp->metadata;
1181                 AVDictionaryEntry *t = NULL;
1182                 BC_Hash *hp = frame->get_params();
1183                 //hp->clear();
1184                 while( (t=av_dict_get(src, "", t, AV_DICT_IGNORE_SUFFIX)) )
1185                         hp->update(t->key, t->value);
1186         }
1187         return ret;
1188 }
1189
1190 int FFVideoConvert::convert_vframe_picture(VFrame *frame, AVFrame *op)
1191 {
1192         AVFrame *opic = av_frame_alloc();
1193         int ret = convert_vframe_picture(frame, op, opic);
1194         av_frame_free(&opic);
1195         return ret;
1196 }
1197
1198 int FFVideoConvert::convert_vframe_picture(VFrame *frame, AVFrame *op, AVFrame *opic)
1199 {
1200         int cmodel = frame->get_color_model();
1201         AVPixelFormat ifmt = color_model_to_pix_fmt(cmodel);
1202         if( ifmt == AV_PIX_FMT_NB ) return -1;
1203         int size = av_image_fill_arrays(opic->data, opic->linesize,
1204                  frame->get_data(), ifmt, frame->get_w(), frame->get_h(), 1);
1205         if( size < 0 ) return -1;
1206
1207         int bpp = BC_CModels::calculate_pixelsize(cmodel);
1208         int ysz = bpp * frame->get_w(), usz = ysz;
1209         switch( cmodel ) {
1210         case BC_YUV410P:
1211         case BC_YUV411P:
1212                 usz /= 2;
1213         case BC_YUV420P:
1214         case BC_YUV422P:
1215                 usz /= 2;
1216         case BC_YUV444P:
1217                 // override av_image_fill_arrays() for planar types
1218                 opic->data[0] = frame->get_y();  opic->linesize[0] = ysz;
1219                 opic->data[1] = frame->get_u();  opic->linesize[1] = usz;
1220                 opic->data[2] = frame->get_v();  opic->linesize[2] = usz;
1221                 break;
1222         default:
1223                 opic->data[0] = frame->get_data();
1224                 opic->linesize[0] = frame->get_bytes_per_line();
1225                 break;
1226         }
1227
1228         AVPixelFormat ofmt = (AVPixelFormat)op->format;
1229         convert_ctx = sws_getCachedContext(convert_ctx, frame->get_w(), frame->get_h(),
1230                 ifmt, op->width, op->height, ofmt, SWS_POINT, NULL, NULL, NULL);
1231         if( !convert_ctx ) {
1232                 fprintf(stderr, "FFVideoConvert::convert_frame_picture:"
1233                                 " sws_getCachedContext() failed\n");
1234                 return -1;
1235         }
1236         int ret = sws_scale(convert_ctx, opic->data, opic->linesize, 0, frame->get_h(),
1237                         op->data, op->linesize);
1238         if( ret < 0 ) {
1239                 ff_err(ret, "FFVideoConvert::convert_frame_picture: sws_scale() failed\n");
1240                 return -1;
1241         }
1242         return 0;
1243 }
1244
1245 int FFVideoConvert::convert_pixfmt(VFrame *frame, AVFrame *op)
1246 {
1247         // try direct transfer
1248         if( !convert_vframe_picture(frame, op) ) return 1;
1249         // use indirect transfer
1250         int cmodel = frame->get_color_model();
1251         int max_bits = BC_CModels::calculate_pixelsize(cmodel) * 8;
1252         max_bits /= BC_CModels::components(cmodel);
1253         AVPixelFormat ofmt = (AVPixelFormat)op->format;
1254         int imodel = pix_fmt_to_color_model(ofmt);
1255         int imodel_is_yuv = BC_CModels::is_yuv(imodel);
1256         int cmodel_is_yuv = BC_CModels::is_yuv(cmodel);
1257         if( imodel < 0 || imodel_is_yuv != cmodel_is_yuv ) {
1258                 imodel = cmodel_is_yuv ?
1259                     (BC_CModels::has_alpha(cmodel) ?
1260                         BC_AYUV16161616 :
1261                         (max_bits > 8 ? BC_AYUV16161616 : BC_YUV444P)) :
1262                     (BC_CModels::has_alpha(cmodel) ?
1263                         (max_bits > 8 ? BC_RGBA16161616 : BC_RGBA8888) :
1264                         (max_bits > 8 ? BC_RGB161616 : BC_RGB888)) ;
1265         }
1266         VFrame vframe(frame->get_w(), frame->get_h(), imodel);
1267         vframe.transfer_from(frame);
1268         if( !convert_vframe_picture(&vframe, op) ) return 1;
1269         return -1;
1270 }
1271
1272 int FFVideoConvert::transfer_pixfmt(VFrame *frame, AVFrame *ofp)
1273 {
1274         int ret = convert_pixfmt(frame, ofp);
1275         if( ret > 0 ) {
1276                 BC_Hash *hp = frame->get_params();
1277                 AVDictionary **dict = &ofp->metadata;
1278                 //av_dict_free(dict);
1279                 for( int i=0; i<hp->size(); ++i ) {
1280                         char *key = hp->get_key(i), *val = hp->get_value(i);
1281                         av_dict_set(dict, key, val, 0);
1282                 }
1283         }
1284         return ret;
1285 }
1286
1287 void FFVideoStream::load_markers()
1288 {
1289         IndexState *index_state = ffmpeg->file_base->asset->index_state;
1290         if( !index_state || idx >= index_state->video_markers.size() ) return;
1291         FFStream::load_markers(*index_state->video_markers[idx], frame_rate);
1292 }
1293
1294 IndexMarks *FFVideoStream::get_markers()
1295 {
1296         IndexState *index_state = ffmpeg->file_base->asset->index_state;
1297         if( !index_state || idx >= index_state->video_markers.size() ) return 0;
1298         return !index_state ? 0 : index_state->video_markers[idx];
1299 }
1300
1301
1302 FFMPEG::FFMPEG(FileBase *file_base)
1303 {
1304         fmt_ctx = 0;
1305         this->file_base = file_base;
1306         memset(file_format,0,sizeof(file_format));
1307         mux_lock = new Condition(0,"FFMPEG::mux_lock",0);
1308         flow_lock = new Condition(1,"FFStream::flow_lock",0);
1309         done = -1;
1310         flow = 1;
1311         decoding = encoding = 0;
1312         has_audio = has_video = 0;
1313         opts = 0;
1314         opt_duration = -1;
1315         opt_video_filter = 0;
1316         opt_audio_filter = 0;
1317         char option_path[BCTEXTLEN];
1318         set_option_path(option_path, "%s", "ffmpeg.opts");
1319         read_options(option_path, opts);
1320 }
1321
1322 FFMPEG::~FFMPEG()
1323 {
1324         ff_lock("FFMPEG::~FFMPEG()");
1325         close_encoder();
1326         ffaudio.remove_all_objects();
1327         ffvideo.remove_all_objects();
1328         if( fmt_ctx ) avformat_close_input(&fmt_ctx);
1329         ff_unlock();
1330         delete flow_lock;
1331         delete mux_lock;
1332         av_dict_free(&opts);
1333         delete [] opt_video_filter;
1334         delete [] opt_audio_filter;
1335 }
1336
1337 int FFMPEG::check_sample_rate(AVCodec *codec, int sample_rate)
1338 {
1339         const int *p = codec->supported_samplerates;
1340         if( !p ) return sample_rate;
1341         while( *p != 0 ) {
1342                 if( *p == sample_rate ) return *p;
1343                 ++p;
1344         }
1345         return 0;
1346 }
1347
1348 static inline AVRational std_frame_rate(int i)
1349 {
1350         static const int m1 = 1001*12, m2 = 1000*12;
1351         static const int freqs[] = {
1352                 40*m1, 48*m1, 50*m1, 60*m1, 80*m1,120*m1, 240*m1,
1353                 24*m2, 30*m2, 60*m2, 12*m2, 15*m2, 48*m2, 0,
1354         };
1355         int freq = i<30*12 ? (i+1)*1001 : freqs[i-30*12];
1356         return (AVRational) { freq, 1001*12 };
1357 }
1358
1359 AVRational FFMPEG::check_frame_rate(AVCodec *codec, double frame_rate)
1360 {
1361         const AVRational *p = codec->supported_framerates;
1362         AVRational rate, best_rate = (AVRational) { 0, 0 };
1363         double max_err = 1.;  int i = 0;
1364         while( ((p ? (rate=*p++) : (rate=std_frame_rate(i++))), rate.num) != 0 ) {
1365                 double framerate = (double) rate.num / rate.den;
1366                 double err = fabs(frame_rate/framerate - 1.);
1367                 if( err >= max_err ) continue;
1368                 max_err = err;
1369                 best_rate = rate;
1370         }
1371         return max_err < 0.0001 ? best_rate : (AVRational) { 0, 0 };
1372 }
1373
1374 AVRational FFMPEG::to_sample_aspect_ratio(Asset *asset)
1375 {
1376 #if 1
1377         double display_aspect = asset->width / (double)asset->height;
1378         double sample_aspect = display_aspect / asset->aspect_ratio;
1379         int width = 1000000, height = width * sample_aspect + 0.5;
1380         float w, h;
1381         MWindow::create_aspect_ratio(w, h, width, height);
1382         return (AVRational){(int)w, (int)h};
1383 #else
1384 // square pixels
1385         return (AVRational){1, 1};
1386 #endif
1387 }
1388
1389 AVRational FFMPEG::to_time_base(int sample_rate)
1390 {
1391         return (AVRational){1, sample_rate};
1392 }
1393
1394 int FFMPEG::get_fmt_score(AVSampleFormat dst_fmt, AVSampleFormat src_fmt)
1395 {
1396         int score = 0;
1397         int dst_planar = av_sample_fmt_is_planar(dst_fmt);
1398         int src_planar = av_sample_fmt_is_planar(src_fmt);
1399         if( dst_planar != src_planar ) ++score;
1400         int dst_bytes = av_get_bytes_per_sample(dst_fmt);
1401         int src_bytes = av_get_bytes_per_sample(src_fmt);
1402         score += (src_bytes > dst_bytes ? 100 : -10) * (src_bytes - dst_bytes);
1403         int src_packed = av_get_packed_sample_fmt(src_fmt);
1404         int dst_packed = av_get_packed_sample_fmt(dst_fmt);
1405         if( dst_packed == AV_SAMPLE_FMT_S32 && src_packed == AV_SAMPLE_FMT_FLT ) score += 20;
1406         if( dst_packed == AV_SAMPLE_FMT_FLT && src_packed == AV_SAMPLE_FMT_S32 ) score += 2;
1407         return score;
1408 }
1409
1410 AVSampleFormat FFMPEG::find_best_sample_fmt_of_list(
1411                 const AVSampleFormat *sample_fmts, AVSampleFormat src_fmt)
1412 {
1413         AVSampleFormat best = AV_SAMPLE_FMT_NONE;
1414         int best_score = get_fmt_score(best, src_fmt);
1415         for( int i=0; sample_fmts[i] >= 0; ++i ) {
1416                 AVSampleFormat sample_fmt = sample_fmts[i];
1417                 int score = get_fmt_score(sample_fmt, src_fmt);
1418                 if( score >= best_score ) continue;
1419                 best = sample_fmt;  best_score = score;
1420         }
1421         return best;
1422 }
1423
1424
1425 void FFMPEG::set_option_path(char *path, const char *fmt, ...)
1426 {
1427         char *ep = path + BCTEXTLEN-1;
1428         strncpy(path, File::get_cindat_path(), ep-path);
1429         strncat(path, "/ffmpeg/", ep-path);
1430         path += strlen(path);
1431         va_list ap;
1432         va_start(ap, fmt);
1433         path += vsnprintf(path, ep-path, fmt, ap);
1434         va_end(ap);
1435         *path = 0;
1436 }
1437
1438 void FFMPEG::get_option_path(char *path, const char *type, const char *spec)
1439 {
1440         if( *spec == '/' )
1441                 strcpy(path, spec);
1442         else
1443                 set_option_path(path, "%s/%s", type, spec);
1444 }
1445
1446 int FFMPEG::get_format(char *format, const char *path, const char *spec)
1447 {
1448         char option_path[BCTEXTLEN], line[BCTEXTLEN], codec[BCTEXTLEN];
1449         get_option_path(option_path, path, spec);
1450         FILE *fp = fopen(option_path,"r");
1451         if( !fp ) return 1;
1452         int ret = 0;
1453         if( !fgets(line, sizeof(line), fp) ) ret = 1;
1454         if( !ret ) {
1455                 line[sizeof(line)-1] = 0;
1456                 ret = scan_option_line(line, format, codec);
1457         }
1458         fclose(fp);
1459         return ret;
1460 }
1461
1462 int FFMPEG::get_codec(char *codec, const char *path, const char *spec)
1463 {
1464         char option_path[BCTEXTLEN], line[BCTEXTLEN], format[BCTEXTLEN];
1465         get_option_path(option_path, path, spec);
1466         FILE *fp = fopen(option_path,"r");
1467         if( !fp ) return 1;
1468         int ret = 0;
1469         if( !fgets(line, sizeof(line), fp) ) ret = 1;
1470         fclose(fp);
1471         if( !ret ) {
1472                 line[sizeof(line)-1] = 0;
1473                 ret = scan_option_line(line, format, codec);
1474         }
1475         if( !ret ) {
1476                 char *vp = codec, *ep = vp+BCTEXTLEN-1;
1477                 while( vp < ep && *vp && *vp != '|' ) ++vp;
1478                 if( *vp == '|' ) --vp;
1479                 while( vp > codec && (*vp==' ' || *vp=='\t') ) *vp-- = 0;
1480         }
1481         return ret;
1482 }
1483
1484 int FFMPEG::get_file_format()
1485 {
1486         char audio_muxer[BCSTRLEN], video_muxer[BCSTRLEN];
1487         char audio_format[BCSTRLEN], video_format[BCSTRLEN];
1488         audio_muxer[0] = audio_format[0] = 0;
1489         video_muxer[0] = video_format[0] = 0;
1490         Asset *asset = file_base->asset;
1491         int ret = asset ? 0 : 1;
1492         if( !ret && asset->audio_data ) {
1493                 if( !(ret=get_format(audio_format, "audio", asset->acodec)) ) {
1494                         if( get_format(audio_muxer, "format", audio_format) ) {
1495                                 strcpy(audio_muxer, audio_format);
1496                                 audio_format[0] = 0;
1497                         }
1498                 }
1499         }
1500         if( !ret && asset->video_data ) {
1501                 if( !(ret=get_format(video_format, "video", asset->vcodec)) ) {
1502                         if( get_format(video_muxer, "format", video_format) ) {
1503                                 strcpy(video_muxer, video_format);
1504                                 video_format[0] = 0;
1505                         }
1506                 }
1507         }
1508         if( !ret && !audio_muxer[0] && !video_muxer[0] )
1509                 ret = 1;
1510         if( !ret && audio_muxer[0] && video_muxer[0] &&
1511             strcmp(audio_muxer, video_muxer) ) ret = -1;
1512         if( !ret && audio_format[0] && video_format[0] &&
1513             strcmp(audio_format, video_format) ) ret = -1;
1514         if( !ret )
1515                 strcpy(file_format, !audio_format[0] && !video_format[0] ?
1516                         (audio_muxer[0] ? audio_muxer : video_muxer) :
1517                         (audio_format[0] ? audio_format : video_format));
1518         return ret;
1519 }
1520
1521 int FFMPEG::scan_option_line(const char *cp, char *tag, char *val)
1522 {
1523         while( *cp == ' ' || *cp == '\t' ) ++cp;
1524         const char *bp = cp;
1525         while( *cp && *cp != ' ' && *cp != '\t' && *cp != '=' && *cp != '\n' ) ++cp;
1526         int len = cp - bp;
1527         if( !len || len > BCSTRLEN-1 ) return 1;
1528         while( bp < cp ) *tag++ = *bp++;
1529         *tag = 0;
1530         while( *cp == ' ' || *cp == '\t' ) ++cp;
1531         if( *cp == '=' ) ++cp;
1532         while( *cp == ' ' || *cp == '\t' ) ++cp;
1533         bp = cp;
1534         while( *cp && *cp != '\n' ) ++cp;
1535         len = cp - bp;
1536         if( len > BCTEXTLEN-1 ) return 1;
1537         while( bp < cp ) *val++ = *bp++;
1538         *val = 0;
1539         return 0;
1540 }
1541
1542 int FFMPEG::can_render(const char *fformat, const char *type)
1543 {
1544         FileSystem fs;
1545         char option_path[BCTEXTLEN];
1546         FFMPEG::set_option_path(option_path, type);
1547         fs.update(option_path);
1548         int total_files = fs.total_files();
1549         for( int i=0; i<total_files; ++i ) {
1550                 const char *name = fs.get_entry(i)->get_name();
1551                 const char *ext = strrchr(name,'.');
1552                 if( !ext ) continue;
1553                 if( !strcmp(fformat, ++ext) ) return 1;
1554         }
1555         return 0;
1556 }
1557
1558 int FFMPEG::get_ff_option(const char *nm, const char *options, char *value)
1559 {
1560         for( const char *cp=options; *cp!=0; ) {
1561                 char line[BCTEXTLEN], *bp = line, *ep = bp+sizeof(line)-1;
1562                 while( bp < ep && *cp && *cp!='\n' ) *bp++ = *cp++;
1563                 if( *cp ) ++cp;
1564                 *bp = 0;
1565                 if( !line[0] || line[0] == '#' || line[0] == ';' ) continue;
1566                 char key[BCSTRLEN], val[BCTEXTLEN];
1567                 if( FFMPEG::scan_option_line(line, key, val) ) continue;
1568                 if( !strcmp(key, nm) ) {
1569                         strncpy(value, val, BCSTRLEN);
1570                         return 0;
1571                 }
1572         }
1573         return 1;
1574 }
1575
1576 void FFMPEG::scan_audio_options(Asset *asset, EDL *edl)
1577 {
1578         char cin_sample_fmt[BCSTRLEN];
1579         int cin_fmt = AV_SAMPLE_FMT_NONE;
1580         const char *options = asset->ff_audio_options;
1581         if( !get_ff_option("cin_sample_fmt", options, cin_sample_fmt) )
1582                 cin_fmt = (int)av_get_sample_fmt(cin_sample_fmt);
1583         if( cin_fmt < 0 ) {
1584                 char audio_codec[BCSTRLEN]; audio_codec[0] = 0;
1585                 AVCodec *av_codec = !FFMPEG::get_codec(audio_codec, "audio", asset->acodec) ?
1586                         avcodec_find_encoder_by_name(audio_codec) : 0;
1587                 if( av_codec && av_codec->sample_fmts )
1588                         cin_fmt = find_best_sample_fmt_of_list(av_codec->sample_fmts, AV_SAMPLE_FMT_FLT);
1589         }
1590         if( cin_fmt < 0 ) cin_fmt = AV_SAMPLE_FMT_S16;
1591         const char *name = av_get_sample_fmt_name((AVSampleFormat)cin_fmt);
1592         if( !name ) name = _("None");
1593         strcpy(asset->ff_sample_format, name);
1594
1595         char value[BCSTRLEN];
1596         if( !get_ff_option("cin_bitrate", options, value) )
1597                 asset->ff_audio_bitrate = atoi(value);
1598         if( !get_ff_option("cin_quality", options, value) )
1599                 asset->ff_audio_quality = atoi(value);
1600 }
1601
1602 void FFMPEG::load_audio_options(Asset *asset, EDL *edl)
1603 {
1604         char options_path[BCTEXTLEN];
1605         set_option_path(options_path, "audio/%s", asset->acodec);
1606         if( !load_options(options_path,
1607                         asset->ff_audio_options,
1608                         sizeof(asset->ff_audio_options)) )
1609                 scan_audio_options(asset, edl);
1610 }
1611
1612 void FFMPEG::scan_video_options(Asset *asset, EDL *edl)
1613 {
1614         char cin_pix_fmt[BCSTRLEN];
1615         int cin_fmt = AV_PIX_FMT_NONE;
1616         const char *options = asset->ff_video_options;
1617         if( !get_ff_option("cin_pix_fmt", options, cin_pix_fmt) )
1618                         cin_fmt = (int)av_get_pix_fmt(cin_pix_fmt);
1619         if( cin_fmt < 0 ) {
1620                 char video_codec[BCSTRLEN];  video_codec[0] = 0;
1621                 AVCodec *av_codec = !get_codec(video_codec, "video", asset->vcodec) ?
1622                         avcodec_find_encoder_by_name(video_codec) : 0;
1623                 if( av_codec && av_codec->pix_fmts ) {
1624                         if( 0 && edl ) { // frequently picks a bad answer
1625                                 int color_model = edl->session->color_model;
1626                                 int max_bits = BC_CModels::calculate_pixelsize(color_model) * 8;
1627                                 max_bits /= BC_CModels::components(color_model);
1628                                 cin_fmt = avcodec_find_best_pix_fmt_of_list(av_codec->pix_fmts,
1629                                         (BC_CModels::is_yuv(color_model) ?
1630                                                 (max_bits > 8 ? AV_PIX_FMT_AYUV64LE : AV_PIX_FMT_YUV444P) :
1631                                                 (max_bits > 8 ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB24)), 0, 0);
1632                         }
1633                         else
1634                                 cin_fmt = av_codec->pix_fmts[0];
1635                 }
1636         }
1637         if( cin_fmt < 0 ) cin_fmt = AV_PIX_FMT_YUV420P;
1638         const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get((AVPixelFormat)cin_fmt);
1639         const char *name = desc ? desc->name : _("None");
1640         strcpy(asset->ff_pixel_format, name);
1641
1642         char value[BCSTRLEN];
1643         if( !get_ff_option("cin_bitrate", options, value) )
1644                 asset->ff_video_bitrate = atoi(value);
1645         if( !get_ff_option("cin_quality", options, value) )
1646                 asset->ff_video_quality = atoi(value);
1647 }
1648
1649 void FFMPEG::load_video_options(Asset *asset, EDL *edl)
1650 {
1651         char options_path[BCTEXTLEN];
1652         set_option_path(options_path, "video/%s", asset->vcodec);
1653         if( !load_options(options_path,
1654                         asset->ff_video_options,
1655                         sizeof(asset->ff_video_options)) )
1656                 scan_video_options(asset, edl);
1657 }
1658
1659 int FFMPEG::load_defaults(const char *path, const char *type,
1660                  char *codec, char *codec_options, int len)
1661 {
1662         char default_file[BCTEXTLEN];
1663         set_option_path(default_file, "%s/%s.dfl", path, type);
1664         FILE *fp = fopen(default_file,"r");
1665         if( !fp ) return 1;
1666         fgets(codec, BCSTRLEN, fp);
1667         char *cp = codec;
1668         while( *cp && *cp!='\n' ) ++cp;
1669         *cp = 0;
1670         while( len > 0 && fgets(codec_options, len, fp) ) {
1671                 int n = strlen(codec_options);
1672                 codec_options += n;  len -= n;
1673         }
1674         fclose(fp);
1675         set_option_path(default_file, "%s/%s", path, codec);
1676         return load_options(default_file, codec_options, len);
1677 }
1678
1679 void FFMPEG::set_asset_format(Asset *asset, EDL *edl, const char *text)
1680 {
1681         if( asset->format != FILE_FFMPEG ) return;
1682         if( text != asset->fformat )
1683                 strcpy(asset->fformat, text);
1684         if( asset->audio_data && !asset->ff_audio_options[0] ) {
1685                 if( !load_defaults("audio", text, asset->acodec,
1686                                 asset->ff_audio_options, sizeof(asset->ff_audio_options)) )
1687                         scan_audio_options(asset, edl);
1688                 else
1689                         asset->audio_data = 0;
1690         }
1691         if( asset->video_data && !asset->ff_video_options[0] ) {
1692                 if( !load_defaults("video", text, asset->vcodec,
1693                                 asset->ff_video_options, sizeof(asset->ff_video_options)) )
1694                         scan_video_options(asset, edl);
1695                 else
1696                         asset->video_data = 0;
1697         }
1698 }
1699
1700 int FFMPEG::get_encoder(const char *options,
1701                 char *format, char *codec, char *bsfilter)
1702 {
1703         FILE *fp = fopen(options,"r");
1704         if( !fp ) {
1705                 eprintf(_("options open failed %s\n"),options);
1706                 return 1;
1707         }
1708         char line[BCTEXTLEN];
1709         if( !fgets(line, sizeof(line), fp) ||
1710             scan_encoder(line, format, codec, bsfilter) )
1711                 eprintf(_("format/codec not found %s\n"), options);
1712         fclose(fp);
1713         return 0;
1714 }
1715
1716 int FFMPEG::scan_encoder(const char *line,
1717                 char *format, char *codec, char *bsfilter)
1718 {
1719         format[0] = codec[0] = bsfilter[0] = 0;
1720         if( scan_option_line(line, format, codec) ) return 1;
1721         char *cp = codec;
1722         while( *cp && *cp != '|' ) ++cp;
1723         if( !*cp ) return 0;
1724         char *bp = cp;
1725         do { *bp-- = 0; } while( bp>=codec && (*bp==' ' || *bp == '\t' ) );
1726         while( *++cp && (*cp==' ' || *cp == '\t') );
1727         bp = bsfilter;
1728         for( int i=BCTEXTLEN; --i>0 && *cp; ) *bp++ = *cp++;
1729         *bp = 0;
1730         return 0;
1731 }
1732
1733 int FFMPEG::read_options(const char *options, AVDictionary *&opts, int skip)
1734 {
1735         FILE *fp = fopen(options,"r");
1736         if( !fp ) return 1;
1737         int ret = 0;
1738         while( !ret && --skip >= 0 ) {
1739                 int ch = getc(fp);
1740                 while( ch >= 0 && ch != '\n' ) ch = getc(fp);
1741                 if( ch < 0 ) ret = 1;
1742         }
1743         if( !ret )
1744                 ret = read_options(fp, options, opts);
1745         fclose(fp);
1746         return ret;
1747 }
1748
1749 int FFMPEG::scan_options(const char *options, AVDictionary *&opts, AVStream *st)
1750 {
1751         FILE *fp = fmemopen((void *)options,strlen(options),"r");
1752         if( !fp ) return 0;
1753         int ret = read_options(fp, options, opts);
1754         fclose(fp);
1755         AVDictionaryEntry *tag = av_dict_get(opts, "id", NULL, 0);
1756         if( tag ) st->id = strtol(tag->value,0,0);
1757         return ret;
1758 }
1759
1760 int FFMPEG::read_options(FILE *fp, const char *options, AVDictionary *&opts)
1761 {
1762         int ret = 0, no = 0;
1763         char line[BCTEXTLEN];
1764         while( !ret && fgets(line, sizeof(line), fp) ) {
1765                 line[sizeof(line)-1] = 0;
1766                 if( line[0] == '#' ) continue;
1767                 if( line[0] == '\n' ) continue;
1768                 char key[BCSTRLEN], val[BCTEXTLEN];
1769                 if( scan_option_line(line, key, val) ) {
1770                         eprintf(_("err reading %s: line %d\n"), options, no);
1771                         ret = 1;
1772                 }
1773                 if( !ret ) {
1774                         if( !strcmp(key, "duration") )
1775                                 opt_duration = strtod(val, 0);
1776                         else if( !strcmp(key, "video_filter") )
1777                                 opt_video_filter = cstrdup(val);
1778                         else if( !strcmp(key, "audio_filter") )
1779                                 opt_audio_filter = cstrdup(val);
1780                         else if( !strcmp(key, "loglevel") )
1781                                 set_loglevel(val);
1782                         else
1783                                 av_dict_set(&opts, key, val, 0);
1784                 }
1785         }
1786         return ret;
1787 }
1788
1789 int FFMPEG::load_options(const char *options, AVDictionary *&opts)
1790 {
1791         char option_path[BCTEXTLEN];
1792         set_option_path(option_path, "%s", options);
1793         return read_options(option_path, opts);
1794 }
1795
1796 int FFMPEG::load_options(const char *path, char *bfr, int len)
1797 {
1798         *bfr = 0;
1799         FILE *fp = fopen(path, "r");
1800         if( !fp ) return 1;
1801         fgets(bfr, len, fp); // skip hdr
1802         len = fread(bfr, 1, len-1, fp);
1803         if( len < 0 ) len = 0;
1804         bfr[len] = 0;
1805         fclose(fp);
1806         return 0;
1807 }
1808
1809 void FFMPEG::set_loglevel(const char *ap)
1810 {
1811         if( !ap || !*ap ) return;
1812         const struct {
1813                 const char *name;
1814                 int level;
1815         } log_levels[] = {
1816                 { "quiet"  , AV_LOG_QUIET   },
1817                 { "panic"  , AV_LOG_PANIC   },
1818                 { "fatal"  , AV_LOG_FATAL   },
1819                 { "error"  , AV_LOG_ERROR   },
1820                 { "warning", AV_LOG_WARNING },
1821                 { "info"   , AV_LOG_INFO    },
1822                 { "verbose", AV_LOG_VERBOSE },
1823                 { "debug"  , AV_LOG_DEBUG   },
1824         };
1825         for( int i=0; i<(int)(sizeof(log_levels)/sizeof(log_levels[0])); ++i ) {
1826                 if( !strcmp(log_levels[i].name, ap) ) {
1827                         av_log_set_level(log_levels[i].level);
1828                         return;
1829                 }
1830         }
1831         av_log_set_level(atoi(ap));
1832 }
1833
1834 double FFMPEG::to_secs(int64_t time, AVRational time_base)
1835 {
1836         double base_time = time == AV_NOPTS_VALUE ? 0 :
1837                 av_rescale_q(time, time_base, AV_TIME_BASE_Q);
1838         return base_time / AV_TIME_BASE;
1839 }
1840
1841 int FFMPEG::info(char *text, int len)
1842 {
1843         if( len <= 0 ) return 0;
1844         decode_activate();
1845 #define report(s...) do { int n = snprintf(cp,len,s); cp += n;  len -= n; } while(0)
1846         char *cp = text;
1847         report("format: %s\n",fmt_ctx->iformat->name);
1848         if( ffvideo.size() > 0 )
1849                 report("\n%d video stream%s\n",ffvideo.size(), ffvideo.size()!=1 ? "s" : "");
1850         for( int vidx=0; vidx<ffvideo.size(); ++vidx ) {
1851                 FFVideoStream *vid = ffvideo[vidx];
1852                 AVStream *st = vid->st;
1853                 AVCodecID codec_id = st->codecpar->codec_id;
1854                 report(_("vid%d (%d),  id 0x%06x:\n"), vid->idx, vid->fidx, codec_id);
1855                 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1856                 report("  video%d %s", vidx+1, desc ? desc->name : " (unkn)");
1857                 report(" %dx%d %5.2f", vid->width, vid->height, vid->frame_rate);
1858                 AVPixelFormat pix_fmt = (AVPixelFormat)st->codecpar->format;
1859                 const char *pfn = av_get_pix_fmt_name(pix_fmt);
1860                 report(" pix %s\n", pfn ? pfn : "(unkn)");
1861                 double secs = to_secs(st->duration, st->time_base);
1862                 int64_t length = secs * vid->frame_rate + 0.5;
1863                 double ofs = to_secs((vid->nudge - st->start_time), st->time_base);
1864                 int64_t nudge = ofs * vid->frame_rate;
1865                 int ch = nudge >= 0 ? '+' : (nudge=-nudge, '-');
1866                 report("    %jd%c%jd frms %0.2f secs", length,ch,nudge, secs);
1867                 int hrs = secs/3600;  secs -= hrs*3600;
1868                 int mins = secs/60;  secs -= mins*60;
1869                 report("  %d:%02d:%05.2f\n", hrs, mins, secs);
1870         }
1871         if( ffaudio.size() > 0 )
1872                 report("\n%d audio stream%s\n",ffaudio.size(), ffaudio.size()!=1 ? "s" : "");
1873         for( int aidx=0; aidx<ffaudio.size(); ++aidx ) {
1874                 FFAudioStream *aud = ffaudio[aidx];
1875                 AVStream *st = aud->st;
1876                 AVCodecID codec_id = st->codecpar->codec_id;
1877                 report(_("aud%d (%d),  id 0x%06x:\n"), aud->idx, aud->fidx, codec_id);
1878                 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
1879                 int nch = aud->channels, ch0 = aud->channel0+1;
1880                 report("  audio%d-%d %s", ch0, ch0+nch-1, desc ? desc->name : " (unkn)");
1881                 AVSampleFormat sample_fmt = (AVSampleFormat)st->codecpar->format;
1882                 const char *fmt = av_get_sample_fmt_name(sample_fmt);
1883                 report(" %s %d", fmt, aud->sample_rate);
1884                 int sample_bits = av_get_bits_per_sample(codec_id);
1885                 report(" %dbits\n", sample_bits);
1886                 double secs = to_secs(st->duration, st->time_base);
1887                 int64_t length = secs * aud->sample_rate + 0.5;
1888                 double ofs = to_secs((aud->nudge - st->start_time), st->time_base);
1889                 int64_t nudge = ofs * aud->sample_rate;
1890                 int ch = nudge >= 0 ? '+' : (nudge=-nudge, '-');
1891                 report("    %jd%c%jd smpl %0.2f secs", length,ch,nudge, secs);
1892                 int hrs = secs/3600;  secs -= hrs*3600;
1893                 int mins = secs/60;  secs -= mins*60;
1894                 report("  %d:%02d:%05.2f\n", hrs, mins, secs);
1895         }
1896         if( fmt_ctx->nb_programs > 0 )
1897                 report("\n%d program%s\n",fmt_ctx->nb_programs, fmt_ctx->nb_programs!=1 ? "s" : "");
1898         for( int i=0; i<(int)fmt_ctx->nb_programs; ++i ) {
1899                 report("program %d", i+1);
1900                 AVProgram *pgrm = fmt_ctx->programs[i];
1901                 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
1902                         int idx = pgrm->stream_index[j];
1903                         int vidx = ffvideo.size();
1904                         while( --vidx>=0 && ffvideo[vidx]->fidx != idx );
1905                         if( vidx >= 0 ) {
1906                                 report(", vid%d", vidx);
1907                                 continue;
1908                         }
1909                         int aidx = ffaudio.size();
1910                         while( --aidx>=0 && ffaudio[aidx]->fidx != idx );
1911                         if( aidx >= 0 ) {
1912                                 report(", aud%d", aidx);
1913                                 continue;
1914                         }
1915                         report(", (%d)", pgrm->stream_index[j]);
1916                 }
1917                 report("\n");
1918         }
1919         report("\n");
1920         AVDictionaryEntry *tag = 0;
1921         while ((tag = av_dict_get(fmt_ctx->metadata, "", tag, AV_DICT_IGNORE_SUFFIX)))
1922                 report("%s=%s\n", tag->key, tag->value);
1923
1924         if( !len ) --cp;
1925         *cp = 0;
1926         return cp - text;
1927 #undef report
1928 }
1929
1930
1931 int FFMPEG::init_decoder(const char *filename)
1932 {
1933         ff_lock("FFMPEG::init_decoder");
1934         av_register_all();
1935         char file_opts[BCTEXTLEN];
1936         char *bp = strrchr(strcpy(file_opts, filename), '/');
1937         char *sp = strrchr(!bp ? file_opts : bp, '.');
1938         if( !sp ) sp = bp + strlen(bp);
1939         FILE *fp = 0;
1940         AVInputFormat *ifmt = 0;
1941         if( sp ) {
1942                 strcpy(sp, ".opts");
1943                 fp = fopen(file_opts, "r");
1944         }
1945         if( fp ) {
1946                 read_options(fp, file_opts, opts);
1947                 fclose(fp);
1948                 AVDictionaryEntry *tag;
1949                 if( (tag=av_dict_get(opts, "format", NULL, 0)) != 0 ) {
1950                         ifmt = av_find_input_format(tag->value);
1951                 }
1952         }
1953         else
1954                 load_options("decode.opts", opts);
1955         AVDictionary *fopts = 0;
1956         av_dict_copy(&fopts, opts, 0);
1957         int ret = avformat_open_input(&fmt_ctx, filename, ifmt, &fopts);
1958         av_dict_free(&fopts);
1959         if( ret >= 0 )
1960                 ret = avformat_find_stream_info(fmt_ctx, NULL);
1961         if( !ret ) {
1962                 decoding = -1;
1963         }
1964         ff_unlock();
1965         return !ret ? 0 : 1;
1966 }
1967
1968 int FFMPEG::open_decoder()
1969 {
1970         struct stat st;
1971         if( stat(fmt_ctx->url, &st) < 0 ) {
1972                 eprintf(_("can't stat file: %s\n"), fmt_ctx->url);
1973                 return 1;
1974         }
1975
1976         int64_t file_bits = 8 * st.st_size;
1977         if( !fmt_ctx->bit_rate && opt_duration > 0 )
1978                 fmt_ctx->bit_rate = file_bits / opt_duration;
1979
1980         int estimated = 0;
1981         if( fmt_ctx->bit_rate > 0 ) {
1982                 for( int i=0; i<(int)fmt_ctx->nb_streams; ++i ) {
1983                         AVStream *st = fmt_ctx->streams[i];
1984                         if( st->duration != AV_NOPTS_VALUE ) continue;
1985                         if( st->time_base.num > INT64_MAX / fmt_ctx->bit_rate ) continue;
1986                         st->duration = av_rescale(file_bits, st->time_base.den,
1987                                 fmt_ctx->bit_rate * (int64_t) st->time_base.num);
1988                         estimated = 1;
1989                 }
1990         }
1991         static int notified = 0;
1992         if( !notified && estimated ) {
1993                 notified = 1;
1994                 printf("FFMPEG::open_decoder: some stream times estimated\n");
1995         }
1996
1997         ff_lock("FFMPEG::open_decoder");
1998         int ret = 0, bad_time = 0;
1999         for( int i=0; !ret && i<(int)fmt_ctx->nb_streams; ++i ) {
2000                 AVStream *st = fmt_ctx->streams[i];
2001                 if( st->duration == AV_NOPTS_VALUE ) bad_time = 1;
2002                 AVCodecParameters *avpar = st->codecpar;
2003                 const AVCodecDescriptor *codec_desc = avcodec_descriptor_get(avpar->codec_id);
2004                 if( !codec_desc ) continue;
2005                 switch( avpar->codec_type ) {
2006                 case AVMEDIA_TYPE_VIDEO: {
2007                         if( avpar->width < 1 ) continue;
2008                         if( avpar->height < 1 ) continue;
2009                         AVRational framerate = av_guess_frame_rate(fmt_ctx, st, 0);
2010                         if( framerate.num < 1 ) continue;
2011                         has_video = 1;
2012                         int vidx = ffvideo.size();
2013                         FFVideoStream *vid = new FFVideoStream(this, st, vidx, i);
2014                         vstrm_index.append(ffidx(vidx, 0));
2015                         ffvideo.append(vid);
2016                         vid->width = avpar->width;
2017                         vid->height = avpar->height;
2018                         vid->frame_rate = !framerate.den ? 0 : (double)framerate.num / framerate.den;
2019                         double secs = to_secs(st->duration, st->time_base);
2020                         vid->length = secs * vid->frame_rate;
2021                         vid->aspect_ratio = (double)st->sample_aspect_ratio.num / st->sample_aspect_ratio.den;
2022                         vid->nudge = st->start_time;
2023                         vid->reading = -1;
2024                         if( opt_video_filter )
2025                                 ret = vid->create_filter(opt_video_filter, avpar);
2026                         break; }
2027                 case AVMEDIA_TYPE_AUDIO: {
2028                         if( avpar->channels < 1 ) continue;
2029                         if( avpar->sample_rate < 1 ) continue;
2030                         has_audio = 1;
2031                         int aidx = ffaudio.size();
2032                         FFAudioStream *aud = new FFAudioStream(this, st, aidx, i);
2033                         ffaudio.append(aud);
2034                         aud->channel0 = astrm_index.size();
2035                         aud->channels = avpar->channels;
2036                         for( int ch=0; ch<aud->channels; ++ch )
2037                                 astrm_index.append(ffidx(aidx, ch));
2038                         aud->sample_rate = avpar->sample_rate;
2039                         double secs = to_secs(st->duration, st->time_base);
2040                         aud->length = secs * aud->sample_rate;
2041                         aud->init_swr(aud->channels, avpar->format, aud->sample_rate);
2042                         aud->nudge = st->start_time;
2043                         aud->reading = -1;
2044                         if( opt_audio_filter )
2045                                 ret = aud->create_filter(opt_audio_filter, avpar);
2046                         break; }
2047                 default: break;
2048                 }
2049         }
2050         if( bad_time )
2051                 printf("FFMPEG::open_decoder: some stream have bad times\n");
2052         ff_unlock();
2053         return ret < 0 ? -1 : 0;
2054 }
2055
2056
2057 int FFMPEG::init_encoder(const char *filename)
2058 {
2059 // try access first for named pipes
2060         int ret = access(filename, W_OK);
2061         if( ret ) {
2062                 int fd = ::open(filename,O_WRONLY);
2063                 if( fd < 0 ) fd = open(filename,O_WRONLY+O_CREAT,0666);
2064                 if( fd >= 0 ) { close(fd);  ret = 0; }
2065         }
2066         if( ret ) {
2067                 eprintf(_("bad file path: %s\n"), filename);
2068                 return 1;
2069         }
2070         ret = get_file_format();
2071         if( ret > 0 ) {
2072                 eprintf(_("bad file format: %s\n"), filename);
2073                 return 1;
2074         }
2075         if( ret < 0 ) {
2076                 eprintf(_("mismatch audio/video file format: %s\n"), filename);
2077                 return 1;
2078         }
2079         ff_lock("FFMPEG::init_encoder");
2080         av_register_all();
2081         char format[BCSTRLEN];
2082         if( get_format(format, "format", file_format) )
2083                 strcpy(format, file_format);
2084         avformat_alloc_output_context2(&fmt_ctx, 0, format, filename);
2085         if( !fmt_ctx ) {
2086                 eprintf(_("failed: %s\n"), filename);
2087                 ret = 1;
2088         }
2089         if( !ret ) {
2090                 encoding = -1;
2091                 load_options("encode.opts", opts);
2092         }
2093         ff_unlock();
2094         return ret;
2095 }
2096
2097 int FFMPEG::open_encoder(const char *type, const char *spec)
2098 {
2099
2100         Asset *asset = file_base->asset;
2101         char *filename = asset->path;
2102         AVDictionary *sopts = 0;
2103         av_dict_copy(&sopts, opts, 0);
2104         char option_path[BCTEXTLEN];
2105         set_option_path(option_path, "%s/%s.opts", type, type);
2106         read_options(option_path, sopts);
2107         get_option_path(option_path, type, spec);
2108         char format_name[BCSTRLEN], codec_name[BCTEXTLEN], bsfilter[BCTEXTLEN];
2109         if( get_encoder(option_path, format_name, codec_name, bsfilter) ) {
2110                 eprintf(_("get_encoder failed %s:%s\n"), option_path, filename);
2111                 return 1;
2112         }
2113
2114 #ifdef HAVE_DV
2115         if( !strcmp(codec_name, CODEC_TAG_DVSD) ) strcpy(codec_name, "dv");
2116 #endif
2117         else if( !strcmp(codec_name, CODEC_TAG_MJPEG) ) strcpy(codec_name, "mjpeg");
2118         else if( !strcmp(codec_name, CODEC_TAG_JPEG) ) strcpy(codec_name, "jpeg");
2119
2120         int ret = 0;
2121         ff_lock("FFMPEG::open_encoder");
2122         FFStream *fst = 0;
2123         AVStream *st = 0;
2124         AVCodecContext *ctx = 0;
2125
2126         const AVCodecDescriptor *codec_desc = 0;
2127         AVCodec *codec = avcodec_find_encoder_by_name(codec_name);
2128         if( !codec ) {
2129                 eprintf(_("cant find codec %s:%s\n"), codec_name, filename);
2130                 ret = 1;
2131         }
2132         if( !ret ) {
2133                 codec_desc = avcodec_descriptor_get(codec->id);
2134                 if( !codec_desc ) {
2135                         eprintf(_("unknown codec %s:%s\n"), codec_name, filename);
2136                         ret = 1;
2137                 }
2138         }
2139         if( !ret ) {
2140                 st = avformat_new_stream(fmt_ctx, 0);
2141                 if( !st ) {
2142                         eprintf(_("cant create stream %s:%s\n"), codec_name, filename);
2143                         ret = 1;
2144                 }
2145         }
2146         if( !ret ) {
2147                 switch( codec_desc->type ) {
2148                 case AVMEDIA_TYPE_AUDIO: {
2149                         if( has_audio ) {
2150                                 eprintf(_("duplicate audio %s:%s\n"), codec_name, filename);
2151                                 ret = 1;
2152                                 break;
2153                         }
2154                         if( scan_options(asset->ff_audio_options, sopts, st) ) {
2155                                 eprintf(_("bad audio options %s:%s\n"), codec_name, filename);
2156                                 ret = 1;
2157                                 break;
2158                         }
2159                         has_audio = 1;
2160                         ctx = avcodec_alloc_context3(codec);
2161                         if( asset->ff_audio_bitrate > 0 ) {
2162                                 ctx->bit_rate = asset->ff_audio_bitrate;
2163                                 char arg[BCSTRLEN];
2164                                 sprintf(arg, "%d", asset->ff_audio_bitrate);
2165                                 av_dict_set(&sopts, "b", arg, 0);
2166                         }
2167                         else if( asset->ff_audio_quality >= 0 ) {
2168                                 ctx->global_quality = asset->ff_audio_quality * FF_QP2LAMBDA;
2169                                 ctx->qmin    = ctx->qmax =  asset->ff_audio_quality;
2170                                 ctx->mb_lmin = ctx->qmin * FF_QP2LAMBDA;
2171                                 ctx->mb_lmax = ctx->qmax * FF_QP2LAMBDA;
2172                                 ctx->flags |= AV_CODEC_FLAG_QSCALE;
2173                                 char arg[BCSTRLEN];
2174                                 av_dict_set(&sopts, "flags", "+qscale", 0);
2175                                 sprintf(arg, "%d", asset->ff_audio_quality);
2176                                 av_dict_set(&sopts, "qscale", arg, 0);
2177                                 sprintf(arg, "%d", ctx->global_quality);
2178                                 av_dict_set(&sopts, "global_quality", arg, 0);
2179                         }
2180                         int aidx = ffaudio.size();
2181                         int fidx = aidx + ffvideo.size();
2182                         FFAudioStream *aud = new FFAudioStream(this, st, aidx, fidx);
2183                         aud->avctx = ctx;  ffaudio.append(aud);  fst = aud;
2184                         aud->sample_rate = asset->sample_rate;
2185                         ctx->channels = aud->channels = asset->channels;
2186                         for( int ch=0; ch<aud->channels; ++ch )
2187                                 astrm_index.append(ffidx(aidx, ch));
2188                         ctx->channel_layout =  av_get_default_channel_layout(ctx->channels);
2189                         ctx->sample_rate = check_sample_rate(codec, asset->sample_rate);
2190                         if( !ctx->sample_rate ) {
2191                                 eprintf(_("check_sample_rate failed %s\n"), filename);
2192                                 ret = 1;
2193                                 break;
2194                         }
2195                         ctx->time_base = st->time_base = (AVRational){1, aud->sample_rate};
2196                         AVSampleFormat sample_fmt = av_get_sample_fmt(asset->ff_sample_format);
2197                         if( sample_fmt == AV_SAMPLE_FMT_NONE )
2198                                 sample_fmt = codec->sample_fmts ? codec->sample_fmts[0] : AV_SAMPLE_FMT_S16;
2199                         ctx->sample_fmt = sample_fmt;
2200                         uint64_t layout = av_get_default_channel_layout(ctx->channels);
2201                         aud->resample_context = swr_alloc_set_opts(NULL,
2202                                 layout, ctx->sample_fmt, aud->sample_rate,
2203                                 layout, AV_SAMPLE_FMT_FLT, ctx->sample_rate,
2204                                 0, NULL);
2205                         swr_init(aud->resample_context);
2206                         aud->writing = -1;
2207                         break; }
2208                 case AVMEDIA_TYPE_VIDEO: {
2209                         if( has_video ) {
2210                                 eprintf(_("duplicate video %s:%s\n"), codec_name, filename);
2211                                 ret = 1;
2212                                 break;
2213                         }
2214                         if( scan_options(asset->ff_video_options, sopts, st) ) {
2215                                 eprintf(_("bad video options %s:%s\n"), codec_name, filename);
2216                                 ret = 1;
2217                                 break;
2218                         }
2219                         has_video = 1;
2220                         ctx = avcodec_alloc_context3(codec);
2221                         if( asset->ff_video_bitrate > 0 ) {
2222                                 ctx->bit_rate = asset->ff_video_bitrate;
2223                                 char arg[BCSTRLEN];
2224                                 sprintf(arg, "%d", asset->ff_video_bitrate);
2225                                 av_dict_set(&sopts, "b", arg, 0);
2226                         }
2227                         else if( asset->ff_video_quality >= 0 ) {
2228                                 ctx->global_quality = asset->ff_video_quality * FF_QP2LAMBDA;
2229                                 ctx->qmin    = ctx->qmax =  asset->ff_video_quality;
2230                                 ctx->mb_lmin = ctx->qmin * FF_QP2LAMBDA;
2231                                 ctx->mb_lmax = ctx->qmax * FF_QP2LAMBDA;
2232                                 ctx->flags |= AV_CODEC_FLAG_QSCALE;
2233                                 char arg[BCSTRLEN];
2234                                 av_dict_set(&sopts, "flags", "+qscale", 0);
2235                                 sprintf(arg, "%d", asset->ff_video_quality);
2236                                 av_dict_set(&sopts, "qscale", arg, 0);
2237                                 sprintf(arg, "%d", ctx->global_quality);
2238                                 av_dict_set(&sopts, "global_quality", arg, 0);
2239                         }
2240                         int vidx = ffvideo.size();
2241                         int fidx = vidx + ffaudio.size();
2242                         FFVideoStream *vid = new FFVideoStream(this, st, vidx, fidx);
2243                         vstrm_index.append(ffidx(vidx, 0));
2244                         vid->avctx = ctx;  ffvideo.append(vid);  fst = vid;
2245                         vid->width = asset->width;
2246                         vid->height = asset->height;
2247                         vid->frame_rate = asset->frame_rate;
2248
2249                         AVPixelFormat pix_fmt = av_get_pix_fmt(asset->ff_pixel_format);
2250                         if( pix_fmt == AV_PIX_FMT_NONE )
2251                                 pix_fmt = codec->pix_fmts ? codec->pix_fmts[0] : AV_PIX_FMT_YUV420P;
2252                         ctx->pix_fmt = pix_fmt;
2253                         const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
2254                         int mask_w = (1<<desc->log2_chroma_w)-1;
2255                         ctx->width = (vid->width+mask_w) & ~mask_w;
2256                         int mask_h = (1<<desc->log2_chroma_h)-1;
2257                         ctx->height = (vid->height+mask_h) & ~mask_h;
2258                         ctx->sample_aspect_ratio = to_sample_aspect_ratio(asset);
2259                         AVRational frame_rate = check_frame_rate(codec, vid->frame_rate);
2260                         if( !frame_rate.num || !frame_rate.den ) {
2261                                 eprintf(_("check_frame_rate failed %s\n"), filename);
2262                                 ret = 1;
2263                                 break;
2264                         }
2265                         av_reduce(&frame_rate.num, &frame_rate.den,
2266                                 frame_rate.num, frame_rate.den, INT_MAX);
2267                         ctx->framerate = (AVRational) { frame_rate.num, frame_rate.den };
2268                         ctx->time_base = (AVRational) { frame_rate.den, frame_rate.num };
2269                         st->avg_frame_rate = frame_rate;
2270                         st->time_base = ctx->time_base;
2271                         vid->writing = -1;
2272                         vid->interlaced = asset->interlace_mode == ILACE_MODE_TOP_FIRST ||
2273                                 asset->interlace_mode == ILACE_MODE_BOTTOM_FIRST ? 1 : 0;
2274                         vid->top_field_first = asset->interlace_mode == ILACE_MODE_TOP_FIRST ? 1 : 0;
2275                         break; }
2276                 default:
2277                         eprintf(_("not audio/video, %s:%s\n"), codec_name, filename);
2278                         ret = 1;
2279                 }
2280
2281                 if( ctx ) {
2282                         AVDictionaryEntry *tag;
2283                         if( (tag=av_dict_get(sopts, "cin_stats_filename", NULL, 0)) != 0 ) {
2284                                 char suffix[BCSTRLEN];  sprintf(suffix,"-%d.log",fst->fidx);
2285                                 fst->stats_filename = cstrcat(2, tag->value, suffix);
2286                         }
2287                         if( (tag=av_dict_get(sopts, "flags", NULL, 0)) != 0 ) {
2288                                 int pass = fst->pass;
2289                                 char *cp = tag->value;
2290                                 while( *cp ) {
2291                                         int ch = *cp++, pfx = ch=='-' ? -1 : ch=='+' ? 1 : 0;
2292                                         if( !isalnum(!pfx ? ch : (ch=*cp++)) ) continue;
2293                                         char id[BCSTRLEN], *bp = id, *ep = bp+sizeof(id)-1;
2294                                         for( *bp++=ch; isalnum(ch=*cp); ++cp )
2295                                                 if( bp < ep ) *bp++ = ch;
2296                                         *bp = 0;
2297                                         if( !strcmp(id, "pass1") ) {
2298                                                 pass = pfx<0 ? (pass&~1) : pfx>0 ? (pass|1) : 1;
2299                                         }
2300                                         else if( !strcmp(id, "pass2") ) {
2301                                                 pass = pfx<0 ? (pass&~2) : pfx>0 ? (pass|2) : 2;
2302                                         }
2303                                 }
2304                                 if( (fst->pass=pass) ) {
2305                                         if( pass & 1 ) ctx->flags |= AV_CODEC_FLAG_PASS1;
2306                                         if( pass & 2 ) ctx->flags |= AV_CODEC_FLAG_PASS2;
2307                                 }
2308                         }
2309                 }
2310         }
2311         if( !ret ) {
2312                 if( fmt_ctx->oformat->flags & AVFMT_GLOBALHEADER )
2313                         ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
2314                 if( fst->stats_filename && (ret=fst->init_stats_file()) )
2315                         eprintf(_("error: stats file = %s\n"), fst->stats_filename);
2316         }
2317         if( !ret ) {
2318                 av_dict_set(&sopts, "cin_bitrate", 0, 0);
2319                 av_dict_set(&sopts, "cin_quality", 0, 0);
2320
2321                 if( !av_dict_get(sopts, "threads", NULL, 0) )
2322                         ctx->thread_count = ff_cpus();
2323                 ret = avcodec_open2(ctx, codec, &sopts);
2324                 if( ret >= 0 ) {
2325                         ret = avcodec_parameters_from_context(st->codecpar, ctx);
2326                         if( ret < 0 )
2327                                 fprintf(stderr, "Could not copy the stream parameters\n");
2328                 }
2329                 if( ret >= 0 ) {
2330 _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
2331                         ret = avcodec_copy_context(st->codec, ctx);
2332 _Pragma("GCC diagnostic warning \"-Wdeprecated-declarations\"")
2333                         if( ret < 0 )
2334                                 fprintf(stderr, "Could not copy the stream context\n");
2335                 }
2336                 if( ret < 0 ) {
2337                         ff_err(ret,"FFMPEG::open_encoder");
2338                         eprintf(_("open failed %s:%s\n"), codec_name, filename);
2339                         ret = 1;
2340                 }
2341                 else
2342                         ret = 0;
2343         }
2344         if( !ret && fst && bsfilter[0] ) {
2345                 ret = av_bsf_list_parse_str(bsfilter, &fst->bsfc);
2346                 if( ret < 0 ) {
2347                         ff_err(ret,"FFMPEG::open_encoder");
2348                         eprintf(_("bitstream filter failed %s:\n%s\n"), filename, bsfilter);
2349                         ret = 1;
2350                 }
2351                 else
2352                         ret = 0;
2353         }
2354
2355         if( !ret )
2356                 start_muxer();
2357
2358         ff_unlock();
2359         av_dict_free(&sopts);
2360         return ret;
2361 }
2362
2363 int FFMPEG::close_encoder()
2364 {
2365         stop_muxer();
2366         if( encoding > 0 ) {
2367                 av_write_trailer(fmt_ctx);
2368                 if( !(fmt_ctx->flags & AVFMT_NOFILE) )
2369                         avio_closep(&fmt_ctx->pb);
2370         }
2371         encoding = 0;
2372         return 0;
2373 }
2374
2375 int FFMPEG::decode_activate()
2376 {
2377         if( decoding < 0 ) {
2378                 decoding = 0;
2379                 for( int vidx=0; vidx<ffvideo.size(); ++vidx )
2380                         ffvideo[vidx]->nudge = AV_NOPTS_VALUE;
2381                 for( int aidx=0; aidx<ffaudio.size(); ++aidx )
2382                         ffaudio[aidx]->nudge = AV_NOPTS_VALUE;
2383                 // set nudges for each program stream set
2384                 const int64_t min_nudge = INT64_MIN+1;
2385                 int npgrms = fmt_ctx->nb_programs;
2386                 for( int i=0; i<npgrms; ++i ) {
2387                         AVProgram *pgrm = fmt_ctx->programs[i];
2388                         // first start time video stream
2389                         int64_t vstart_time = min_nudge, astart_time = min_nudge;
2390                         for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
2391                                 int fidx = pgrm->stream_index[j];
2392                                 AVStream *st = fmt_ctx->streams[fidx];
2393                                 AVCodecParameters *avpar = st->codecpar;
2394                                 if( avpar->codec_type == AVMEDIA_TYPE_VIDEO ) {
2395                                         if( st->start_time == AV_NOPTS_VALUE ) continue;
2396                                         if( vstart_time < st->start_time )
2397                                                 vstart_time = st->start_time;
2398                                         continue;
2399                                 }
2400                                 if( avpar->codec_type == AVMEDIA_TYPE_AUDIO ) {
2401                                         if( st->start_time == AV_NOPTS_VALUE ) continue;
2402                                         if( astart_time < st->start_time )
2403                                                 astart_time = st->start_time;
2404                                         continue;
2405                                 }
2406                         }
2407                         //since frame rate is much more grainy than sample rate, it is better to
2408                         // align using video, so that total absolute error is minimized.
2409                         int64_t nudge = vstart_time > min_nudge ? vstart_time :
2410                                 astart_time > min_nudge ? astart_time : AV_NOPTS_VALUE;
2411                         for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
2412                                 int fidx = pgrm->stream_index[j];
2413                                 AVStream *st = fmt_ctx->streams[fidx];
2414                                 AVCodecParameters *avpar = st->codecpar;
2415                                 if( avpar->codec_type == AVMEDIA_TYPE_VIDEO ) {
2416                                         for( int k=0; k<ffvideo.size(); ++k ) {
2417                                                 if( ffvideo[k]->fidx != fidx ) continue;
2418                                                 ffvideo[k]->nudge = nudge;
2419                                         }
2420                                         continue;
2421                                 }
2422                                 if( avpar->codec_type == AVMEDIA_TYPE_AUDIO ) {
2423                                         for( int k=0; k<ffaudio.size(); ++k ) {
2424                                                 if( ffaudio[k]->fidx != fidx ) continue;
2425                                                 ffaudio[k]->nudge = nudge;
2426                                         }
2427                                         continue;
2428                                 }
2429                         }
2430                 }
2431                 // set nudges for any streams not yet set
2432                 int64_t vstart_time = min_nudge, astart_time = min_nudge;
2433                 int nstreams = fmt_ctx->nb_streams;
2434                 for( int i=0; i<nstreams; ++i ) {
2435                         AVStream *st = fmt_ctx->streams[i];
2436                         AVCodecParameters *avpar = st->codecpar;
2437                         switch( avpar->codec_type ) {
2438                         case AVMEDIA_TYPE_VIDEO: {
2439                                 if( st->start_time == AV_NOPTS_VALUE ) continue;
2440                                 int vidx = ffvideo.size();
2441                                 while( --vidx >= 0 && ffvideo[vidx]->fidx != i );
2442                                 if( vidx < 0 ) continue;
2443                                 if( ffvideo[vidx]->nudge != AV_NOPTS_VALUE ) continue;
2444                                 if( vstart_time < st->start_time )
2445                                         vstart_time = st->start_time;
2446                                 break; }
2447                         case AVMEDIA_TYPE_AUDIO: {
2448                                 if( st->start_time == AV_NOPTS_VALUE ) continue;
2449                                 int aidx = ffaudio.size();
2450                                 while( --aidx >= 0 && ffaudio[aidx]->fidx != i );
2451                                 if( aidx < 0 ) continue;
2452                                 if( ffaudio[aidx]->frame_sz < avpar->frame_size )
2453                                         ffaudio[aidx]->frame_sz = avpar->frame_size;
2454                                 if( ffaudio[aidx]->nudge != AV_NOPTS_VALUE ) continue;
2455                                 if( astart_time < st->start_time )
2456                                         astart_time = st->start_time;
2457                                 break; }
2458                         default: break;
2459                         }
2460                 }
2461                 int64_t nudge = vstart_time > min_nudge ? vstart_time :
2462                         astart_time > min_nudge ? astart_time : 0;
2463                 for( int vidx=0; vidx<ffvideo.size(); ++vidx ) {
2464                         if( ffvideo[vidx]->nudge == AV_NOPTS_VALUE )
2465                                 ffvideo[vidx]->nudge = nudge;
2466                 }
2467                 for( int aidx=0; aidx<ffaudio.size(); ++aidx ) {
2468                         if( ffaudio[aidx]->nudge == AV_NOPTS_VALUE )
2469                                 ffaudio[aidx]->nudge = nudge;
2470                 }
2471                 decoding = 1;
2472         }
2473         return decoding;
2474 }
2475
2476 int FFMPEG::encode_activate()
2477 {
2478         int ret = 0;
2479         if( encoding < 0 ) {
2480                 encoding = 0;
2481                 if( !(fmt_ctx->flags & AVFMT_NOFILE) &&
2482                     (ret=avio_open(&fmt_ctx->pb, fmt_ctx->url, AVIO_FLAG_WRITE)) < 0 ) {
2483                         ff_err(ret, "FFMPEG::encode_activate: err opening : %s\n",
2484                                 fmt_ctx->url);
2485                         return -1;
2486                 }
2487
2488                 int prog_id = 1;
2489                 AVProgram *prog = av_new_program(fmt_ctx, prog_id);
2490                 for( int i=0; i< ffvideo.size(); ++i )
2491                         av_program_add_stream_index(fmt_ctx, prog_id, ffvideo[i]->fidx);
2492                 for( int i=0; i< ffaudio.size(); ++i )
2493                         av_program_add_stream_index(fmt_ctx, prog_id, ffaudio[i]->fidx);
2494                 int pi = fmt_ctx->nb_programs;
2495                 while(  --pi >= 0 && fmt_ctx->programs[pi]->id != prog_id );
2496                 AVDictionary **meta = &prog->metadata;
2497                 av_dict_set(meta, "service_provider", "cin5", 0);
2498                 const char *path = fmt_ctx->url, *bp = strrchr(path,'/');
2499                 if( bp ) path = bp + 1;
2500                 av_dict_set(meta, "title", path, 0);
2501
2502                 if( ffaudio.size() ) {
2503                         const char *ep = getenv("CIN_AUDIO_LANG"), *lp = 0;
2504                         if( !ep && (lp=getenv("LANG")) ) { // some are guesses
2505                                 static struct { const char lc[3], lng[4]; } lcode[] = {
2506                                         { "en", "eng" }, { "de", "ger" }, { "es", "spa" },
2507                                         { "eu", "bas" }, { "fr", "fre" }, { "el", "gre" },
2508                                         { "hi", "hin" }, { "it", "ita" }, { "ja", "jap" },
2509                                         { "ko", "kor" }, { "du", "dut" }, { "pl", "pol" },
2510                                         { "pt", "por" }, { "ru", "rus" }, { "sl", "slv" },
2511                                         { "uk", "ukr" }, { "vi", "vie" }, { "zh", "chi" },
2512                                 };
2513                                 for( int i=sizeof(lcode)/sizeof(lcode[0]); --i>=0 && !ep; )
2514                                         if( !strncmp(lcode[i].lc,lp,2) ) ep = lcode[i].lng;
2515                         }
2516                         if( !ep ) ep = "und";
2517                         char lang[5];
2518                         strncpy(lang,ep,3);  lang[3] = 0;
2519                         AVStream *st = ffaudio[0]->st;
2520                         av_dict_set(&st->metadata,"language",lang,0);
2521                 }
2522
2523                 AVDictionary *fopts = 0;
2524                 char option_path[BCTEXTLEN];
2525                 set_option_path(option_path, "format/%s", file_format);
2526                 read_options(option_path, fopts, 1);
2527                 ret = avformat_write_header(fmt_ctx, &fopts);
2528                 if( ret < 0 ) {
2529                         ff_err(ret, "FFMPEG::encode_activate: write header failed %s\n",
2530                                 fmt_ctx->url);
2531                         return -1;
2532                 }
2533                 av_dict_free(&fopts);
2534                 encoding = 1;
2535         }
2536         return encoding;
2537 }
2538
2539
2540 int FFMPEG::audio_seek(int stream, int64_t pos)
2541 {
2542         int aidx = astrm_index[stream].st_idx;
2543         FFAudioStream *aud = ffaudio[aidx];
2544         aud->audio_seek(pos);
2545         return 0;
2546 }
2547
2548 int FFMPEG::video_seek(int stream, int64_t pos)
2549 {
2550         int vidx = vstrm_index[stream].st_idx;
2551         FFVideoStream *vid = ffvideo[vidx];
2552         vid->video_seek(pos);
2553         return 0;
2554 }
2555
2556
2557 int FFMPEG::decode(int chn, int64_t pos, double *samples, int len)
2558 {
2559         if( !has_audio || chn >= astrm_index.size() ) return -1;
2560         int aidx = astrm_index[chn].st_idx;
2561         FFAudioStream *aud = ffaudio[aidx];
2562         if( aud->load(pos, len) < len ) return -1;
2563         int ch = astrm_index[chn].st_ch;
2564         int ret = aud->read(samples,len,ch);
2565         return ret;
2566 }
2567
2568 int FFMPEG::decode(int layer, int64_t pos, VFrame *vframe)
2569 {
2570         if( !has_video || layer >= vstrm_index.size() ) return -1;
2571         int vidx = vstrm_index[layer].st_idx;
2572         FFVideoStream *vid = ffvideo[vidx];
2573         return vid->load(vframe, pos);
2574 }
2575
2576
2577 int FFMPEG::encode(int stream, double **samples, int len)
2578 {
2579         FFAudioStream *aud = ffaudio[stream];
2580         return aud->encode(samples, len);
2581 }
2582
2583
2584 int FFMPEG::encode(int stream, VFrame *frame)
2585 {
2586         FFVideoStream *vid = ffvideo[stream];
2587         return vid->encode(frame);
2588 }
2589
2590 void FFMPEG::start_muxer()
2591 {
2592         if( !running() ) {
2593                 done = 0;
2594                 start();
2595         }
2596 }
2597
2598 void FFMPEG::stop_muxer()
2599 {
2600         if( running() ) {
2601                 done = 1;
2602                 mux_lock->unlock();
2603         }
2604         join();
2605 }
2606
2607 void FFMPEG::flow_off()
2608 {
2609         if( !flow ) return;
2610         flow_lock->lock("FFMPEG::flow_off");
2611         flow = 0;
2612 }
2613
2614 void FFMPEG::flow_on()
2615 {
2616         if( flow ) return;
2617         flow = 1;
2618         flow_lock->unlock();
2619 }
2620
2621 void FFMPEG::flow_ctl()
2622 {
2623         while( !flow ) {
2624                 flow_lock->lock("FFMPEG::flow_ctl");
2625                 flow_lock->unlock();
2626         }
2627 }
2628
2629 int FFMPEG::mux_audio(FFrame *frm)
2630 {
2631         FFStream *fst = frm->fst;
2632         AVCodecContext *ctx = fst->avctx;
2633         AVFrame *frame = *frm;
2634         AVRational tick_rate = {1, ctx->sample_rate};
2635         frame->pts = av_rescale_q(frm->position, tick_rate, ctx->time_base);
2636         int ret = fst->encode_frame(frame);
2637         if( ret < 0 )
2638                 ff_err(ret, "FFMPEG::mux_audio");
2639         return ret >= 0 ? 0 : 1;
2640 }
2641
2642 int FFMPEG::mux_video(FFrame *frm)
2643 {
2644         FFStream *fst = frm->fst;
2645         AVFrame *frame = *frm;
2646         frame->pts = frm->position;
2647         int ret = fst->encode_frame(frame);
2648         if( ret < 0 )
2649                 ff_err(ret, "FFMPEG::mux_video");
2650         return ret >= 0 ? 0 : 1;
2651 }
2652
2653 void FFMPEG::mux()
2654 {
2655         for(;;) {
2656                 double atm = -1, vtm = -1;
2657                 FFrame *afrm = 0, *vfrm = 0;
2658                 int demand = 0;
2659                 for( int i=0; i<ffaudio.size(); ++i ) {  // earliest audio
2660                         FFStream *fst = ffaudio[i];
2661                         if( fst->frm_count < 3 ) { demand = 1; flow_on(); }
2662                         FFrame *frm = fst->frms.first;
2663                         if( !frm ) { if( !done ) return; continue; }
2664                         double tm = to_secs(frm->position, fst->avctx->time_base);
2665                         if( atm < 0 || tm < atm ) { atm = tm;  afrm = frm; }
2666                 }
2667                 for( int i=0; i<ffvideo.size(); ++i ) {  // earliest video
2668                         FFStream *fst = ffvideo[i];
2669                         if( fst->frm_count < 2 ) { demand = 1; flow_on(); }
2670                         FFrame *frm = fst->frms.first;
2671                         if( !frm ) { if( !done ) return; continue; }
2672                         double tm = to_secs(frm->position, fst->avctx->time_base);
2673                         if( vtm < 0 || tm < vtm ) { vtm = tm;  vfrm = frm; }
2674                 }
2675                 if( !demand ) flow_off();
2676                 if( !afrm && !vfrm ) break;
2677                 int v = !afrm ? -1 : !vfrm ? 1 : av_compare_ts(
2678                         vfrm->position, vfrm->fst->avctx->time_base,
2679                         afrm->position, afrm->fst->avctx->time_base);
2680                 FFrame *frm = v <= 0 ? vfrm : afrm;
2681                 if( frm == afrm ) mux_audio(frm);
2682                 if( frm == vfrm ) mux_video(frm);
2683                 frm->dequeue();
2684                 delete frm;
2685         }
2686 }
2687
2688 void FFMPEG::run()
2689 {
2690         while( !done ) {
2691                 mux_lock->lock("FFMPEG::run");
2692                 if( !done ) mux();
2693         }
2694         for( int i=0; i<ffaudio.size(); ++i )
2695                 ffaudio[i]->drain();
2696         for( int i=0; i<ffvideo.size(); ++i )
2697                 ffvideo[i]->drain();
2698         mux();
2699         for( int i=0; i<ffaudio.size(); ++i )
2700                 ffaudio[i]->flush();
2701         for( int i=0; i<ffvideo.size(); ++i )
2702                 ffvideo[i]->flush();
2703 }
2704
2705
2706 int FFMPEG::ff_total_audio_channels()
2707 {
2708         return astrm_index.size();
2709 }
2710
2711 int FFMPEG::ff_total_astreams()
2712 {
2713         return ffaudio.size();
2714 }
2715
2716 int FFMPEG::ff_audio_channels(int stream)
2717 {
2718         return ffaudio[stream]->channels;
2719 }
2720
2721 int FFMPEG::ff_sample_rate(int stream)
2722 {
2723         return ffaudio[stream]->sample_rate;
2724 }
2725
2726 const char* FFMPEG::ff_audio_format(int stream)
2727 {
2728         AVStream *st = ffaudio[stream]->st;
2729         AVCodecID id = st->codecpar->codec_id;
2730         const AVCodecDescriptor *desc = avcodec_descriptor_get(id);
2731         return desc ? desc->name : _("Unknown");
2732 }
2733
2734 int FFMPEG::ff_audio_pid(int stream)
2735 {
2736         return ffaudio[stream]->st->id;
2737 }
2738
2739 int64_t FFMPEG::ff_audio_samples(int stream)
2740 {
2741         return ffaudio[stream]->length;
2742 }
2743
2744 // find audio astream/channels with this program,
2745 //   or all program audio channels (astream=-1)
2746 int FFMPEG::ff_audio_for_video(int vstream, int astream, int64_t &channel_mask)
2747 {
2748         channel_mask = 0;
2749         int pidx = -1;
2750         int vidx = ffvideo[vstream]->fidx;
2751         // find first program with this video stream
2752         for( int i=0; pidx<0 && i<(int)fmt_ctx->nb_programs; ++i ) {
2753                 AVProgram *pgrm = fmt_ctx->programs[i];
2754                 for( int j=0;  pidx<0 && j<(int)pgrm->nb_stream_indexes; ++j ) {
2755                         int st_idx = pgrm->stream_index[j];
2756                         AVStream *st = fmt_ctx->streams[st_idx];
2757                         if( st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO ) continue;
2758                         if( st_idx == vidx ) pidx = i;
2759                 }
2760         }
2761         if( pidx < 0 ) return -1;
2762         int ret = -1;
2763         int64_t channels = 0;
2764         AVProgram *pgrm = fmt_ctx->programs[pidx];
2765         for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
2766                 int aidx = pgrm->stream_index[j];
2767                 AVStream *st = fmt_ctx->streams[aidx];
2768                 if( st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO ) continue;
2769                 if( astream > 0 ) { --astream;  continue; }
2770                 int astrm = -1;
2771                 for( int i=0; astrm<0 && i<ffaudio.size(); ++i )
2772                         if( ffaudio[i]->fidx == aidx ) astrm = i;
2773                 if( astrm >= 0 ) {
2774                         if( ret < 0 ) ret = astrm;
2775                         int64_t mask = (1 << ffaudio[astrm]->channels) - 1;
2776                         channels |= mask << ffaudio[astrm]->channel0;
2777                 }
2778                 if( !astream ) break;
2779         }
2780         channel_mask = channels;
2781         return ret;
2782 }
2783
2784
2785 int FFMPEG::ff_total_video_layers()
2786 {
2787         return vstrm_index.size();
2788 }
2789
2790 int FFMPEG::ff_total_vstreams()
2791 {
2792         return ffvideo.size();
2793 }
2794
2795 int FFMPEG::ff_video_width(int stream)
2796 {
2797         return ffvideo[stream]->width;
2798 }
2799
2800 int FFMPEG::ff_video_height(int stream)
2801 {
2802         return ffvideo[stream]->height;
2803 }
2804
2805 int FFMPEG::ff_set_video_width(int stream, int width)
2806 {
2807         int w = ffvideo[stream]->width;
2808         ffvideo[stream]->width = width;
2809         return w;
2810 }
2811
2812 int FFMPEG::ff_set_video_height(int stream, int height)
2813 {
2814         int h = ffvideo[stream]->height;
2815         ffvideo[stream]->height = height;
2816         return h;
2817 }
2818
2819 int FFMPEG::ff_coded_width(int stream)
2820 {
2821         return ffvideo[stream]->avctx->coded_width;
2822 }
2823
2824 int FFMPEG::ff_coded_height(int stream)
2825 {
2826         return ffvideo[stream]->avctx->coded_height;
2827 }
2828
2829 float FFMPEG::ff_aspect_ratio(int stream)
2830 {
2831         return ffvideo[stream]->aspect_ratio;
2832 }
2833
2834 const char* FFMPEG::ff_video_format(int stream)
2835 {
2836         AVStream *st = ffvideo[stream]->st;
2837         AVCodecID id = st->codecpar->codec_id;
2838         const AVCodecDescriptor *desc = avcodec_descriptor_get(id);
2839         return desc ? desc->name : _("Unknown");
2840 }
2841
2842 double FFMPEG::ff_frame_rate(int stream)
2843 {
2844         return ffvideo[stream]->frame_rate;
2845 }
2846
2847 int64_t FFMPEG::ff_video_frames(int stream)
2848 {
2849         return ffvideo[stream]->length;
2850 }
2851
2852 int FFMPEG::ff_video_pid(int stream)
2853 {
2854         return ffvideo[stream]->st->id;
2855 }
2856
2857 int FFMPEG::ff_video_mpeg_color_range(int stream)
2858 {
2859         return ffvideo[stream]->st->codecpar->color_range == AVCOL_RANGE_MPEG ? 1 : 0;
2860 }
2861
2862 int FFMPEG::ff_cpus()
2863 {
2864         return file_base->file->cpus;
2865 }
2866
2867 int FFVideoStream::create_filter(const char *filter_spec, AVCodecParameters *avpar)
2868 {
2869         avfilter_register_all();
2870         const char *sp = filter_spec;
2871         char filter_name[BCSTRLEN], *np = filter_name;
2872         int i = sizeof(filter_name);
2873         while( --i>=0 && *sp!=0 && !strchr(" \t:=,",*sp) ) *np++ = *sp++;
2874         *np = 0;
2875         const AVFilter *filter = !filter_name[0] ? 0 : avfilter_get_by_name(filter_name);
2876         if( !filter || avfilter_pad_get_type(filter->inputs,0) != AVMEDIA_TYPE_VIDEO ) {
2877                 ff_err(AVERROR(EINVAL), "FFVideoStream::create_filter: %s\n", filter_spec);
2878                 return -1;
2879         }
2880         filter_graph = avfilter_graph_alloc();
2881         const AVFilter *buffersrc = avfilter_get_by_name("buffer");
2882         const AVFilter *buffersink = avfilter_get_by_name("buffersink");
2883
2884         int ret = 0;  char args[BCTEXTLEN];
2885         AVPixelFormat pix_fmt = (AVPixelFormat)avpar->format;
2886         snprintf(args, sizeof(args),
2887                 "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
2888                 avpar->width, avpar->height, (int)pix_fmt,
2889                 st->time_base.num, st->time_base.den,
2890                 avpar->sample_aspect_ratio.num, avpar->sample_aspect_ratio.den);
2891         if( ret >= 0 )
2892                 ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
2893                         args, NULL, filter_graph);
2894         if( ret >= 0 )
2895                 ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
2896                         NULL, NULL, filter_graph);
2897         if( ret >= 0 )
2898                 ret = av_opt_set_bin(buffersink_ctx, "pix_fmts",
2899                         (uint8_t*)&pix_fmt, sizeof(pix_fmt),
2900                         AV_OPT_SEARCH_CHILDREN);
2901         if( ret < 0 )
2902                 ff_err(ret, "FFVideoStream::create_filter");
2903         else
2904                 ret = FFStream::create_filter(filter_spec);
2905         return ret >= 0 ? 0 : -1;
2906 }
2907
2908 int FFAudioStream::create_filter(const char *filter_spec, AVCodecParameters *avpar)
2909 {
2910         avfilter_register_all();
2911         const char *sp = filter_spec;
2912         char filter_name[BCSTRLEN], *np = filter_name;
2913         int i = sizeof(filter_name);
2914         while( --i>=0 && *sp!=0 && !strchr(" \t:=,",*sp) ) *np++ = *sp++;
2915         *np = 0;
2916         const AVFilter *filter = !filter_name[0] ? 0 : avfilter_get_by_name(filter_name);
2917         if( !filter || avfilter_pad_get_type(filter->inputs,0) != AVMEDIA_TYPE_AUDIO ) {
2918                 ff_err(AVERROR(EINVAL), "FFAudioStream::create_filter: %s\n", filter_spec);
2919                 return -1;
2920         }
2921         filter_graph = avfilter_graph_alloc();
2922         const AVFilter *buffersrc = avfilter_get_by_name("abuffer");
2923         const AVFilter *buffersink = avfilter_get_by_name("abuffersink");
2924         int ret = 0;  char args[BCTEXTLEN];
2925         AVSampleFormat sample_fmt = (AVSampleFormat)avpar->format;
2926         snprintf(args, sizeof(args),
2927                 "time_base=%d/%d:sample_rate=%d:sample_fmt=%s:channel_layout=0x%jx",
2928                 st->time_base.num, st->time_base.den, avpar->sample_rate,
2929                 av_get_sample_fmt_name(sample_fmt), avpar->channel_layout);
2930         if( ret >= 0 )
2931                 ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
2932                         args, NULL, filter_graph);
2933         if( ret >= 0 )
2934                 ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
2935                         NULL, NULL, filter_graph);
2936         if( ret >= 0 )
2937                 ret = av_opt_set_bin(buffersink_ctx, "sample_fmts",
2938                         (uint8_t*)&sample_fmt, sizeof(sample_fmt),
2939                         AV_OPT_SEARCH_CHILDREN);
2940         if( ret >= 0 )
2941                 ret = av_opt_set_bin(buffersink_ctx, "channel_layouts",
2942                         (uint8_t*)&avpar->channel_layout,
2943                         sizeof(avpar->channel_layout), AV_OPT_SEARCH_CHILDREN);
2944         if( ret >= 0 )
2945                 ret = av_opt_set_bin(buffersink_ctx, "sample_rates",
2946                         (uint8_t*)&sample_rate, sizeof(sample_rate),
2947                         AV_OPT_SEARCH_CHILDREN);
2948         if( ret < 0 )
2949                 ff_err(ret, "FFAudioStream::create_filter");
2950         else
2951                 ret = FFStream::create_filter(filter_spec);
2952         return ret >= 0 ? 0 : -1;
2953 }
2954
2955 int FFStream::create_filter(const char *filter_spec)
2956 {
2957         /* Endpoints for the filter graph. */
2958         AVFilterInOut *outputs = avfilter_inout_alloc();
2959         outputs->name = av_strdup("in");
2960         outputs->filter_ctx = buffersrc_ctx;
2961         outputs->pad_idx = 0;
2962         outputs->next = 0;
2963
2964         AVFilterInOut *inputs  = avfilter_inout_alloc();
2965         inputs->name = av_strdup("out");
2966         inputs->filter_ctx = buffersink_ctx;
2967         inputs->pad_idx = 0;
2968         inputs->next = 0;
2969
2970         int ret = !outputs->name || !inputs->name ? -1 : 0;
2971         if( ret >= 0 )
2972                 ret = avfilter_graph_parse_ptr(filter_graph, filter_spec,
2973                         &inputs, &outputs, NULL);
2974         if( ret >= 0 )
2975                 ret = avfilter_graph_config(filter_graph, NULL);
2976
2977         if( ret < 0 ) {
2978                 ff_err(ret, "FFStream::create_filter");
2979                 avfilter_graph_free(&filter_graph);
2980                 filter_graph = 0;
2981         }
2982         avfilter_inout_free(&inputs);
2983         avfilter_inout_free(&outputs);
2984         return ret;
2985 }
2986
2987 int FFMPEG::scan(IndexState *index_state, int64_t *scan_position, int *canceled)
2988 {
2989         AVPacket pkt;
2990         av_init_packet(&pkt);
2991         AVFrame *frame = av_frame_alloc();
2992         if( !frame ) {
2993                 fprintf(stderr,"FFMPEG::scan: ");
2994                 fprintf(stderr,_("av_frame_alloc failed\n"));
2995                 return -1;
2996         }
2997
2998         index_state->add_video_markers(ffvideo.size());
2999         index_state->add_audio_markers(ffaudio.size());
3000
3001         for( int i=0; i<(int)fmt_ctx->nb_streams; ++i ) {
3002                 int ret = 0;
3003                 AVDictionary *copts = 0;
3004                 av_dict_copy(&copts, opts, 0);
3005                 AVStream *st = fmt_ctx->streams[i];
3006                 AVCodecID codec_id = st->codecpar->codec_id;
3007                 AVCodec *decoder = avcodec_find_decoder(codec_id);
3008                 AVCodecContext *avctx = avcodec_alloc_context3(decoder);
3009                 if( !avctx ) {
3010                         eprintf(_("cant allocate codec context\n"));
3011                         ret = AVERROR(ENOMEM);
3012                 }
3013                 if( ret >= 0 ) {
3014                         avcodec_parameters_to_context(avctx, st->codecpar);
3015                         if( !av_dict_get(copts, "threads", NULL, 0) )
3016                                 avctx->thread_count = ff_cpus();
3017                         ret = avcodec_open2(avctx, decoder, &copts);
3018                 }
3019                 av_dict_free(&copts);
3020                 if( ret >= 0 ) {
3021                         AVCodecParameters *avpar = st->codecpar;
3022                         switch( avpar->codec_type ) {
3023                         case AVMEDIA_TYPE_VIDEO: {
3024                                 int vidx = ffvideo.size();
3025                                 while( --vidx>=0 && ffvideo[vidx]->fidx != i );
3026                                 if( vidx < 0 ) break;
3027                                 ffvideo[vidx]->avctx = avctx;
3028                                 continue; }
3029                         case AVMEDIA_TYPE_AUDIO: {
3030                                 int aidx = ffaudio.size();
3031                                 while( --aidx>=0 && ffaudio[aidx]->fidx != i );
3032                                 if( aidx < 0 ) break;
3033                                 ffaudio[aidx]->avctx = avctx;
3034                                 continue; }
3035                         default: break;
3036                         }
3037                 }
3038                 fprintf(stderr,"FFMPEG::scan: ");
3039                 fprintf(stderr,_("codec open failed\n"));
3040                 avcodec_free_context(&avctx);
3041         }
3042
3043         decode_activate();
3044         for( int i=0; i<(int)fmt_ctx->nb_streams; ++i ) {
3045                 AVStream *st = fmt_ctx->streams[i];
3046                 AVCodecParameters *avpar = st->codecpar;
3047                 if( avpar->codec_type != AVMEDIA_TYPE_AUDIO ) continue;
3048                 int64_t tstmp = st->start_time;
3049                 if( tstmp == AV_NOPTS_VALUE ) continue;
3050                 int aidx = ffaudio.size();
3051                 while( --aidx>=0 && ffaudio[aidx]->fidx != i );
3052                 if( aidx < 0 ) continue;
3053                 FFAudioStream *aud = ffaudio[aidx];
3054                 tstmp -= aud->nudge;
3055                 double secs = to_secs(tstmp, st->time_base);
3056                 aud->curr_pos = secs * aud->sample_rate + 0.5;
3057         }
3058
3059         int errs = 0;
3060         for( int64_t count=0; !*canceled; ++count ) {
3061                 av_packet_unref(&pkt);
3062                 pkt.data = 0; pkt.size = 0;
3063
3064                 int ret = av_read_frame(fmt_ctx, &pkt);
3065                 if( ret < 0 ) {
3066                         if( ret == AVERROR_EOF ) break;
3067                         if( ++errs > 100 ) {
3068                                 ff_err(ret,_("over 100 read_frame errs\n"));
3069                                 break;
3070                         }
3071                         continue;
3072                 }
3073                 if( !pkt.data ) continue;
3074                 int i = pkt.stream_index;
<