12 // work arounds (centos)
15 #define INT64_MAX 9223372036854775807LL
17 #define MAX_RETRY 1000
18 // max pts/curr_pos drift allowed before correction (in seconds)
19 #define AUDIO_PTS_TOLERANCE 0.04
22 #include "bccmodels.h"
25 #include "edlsession.h"
27 #include "fileffmpeg.h"
28 #include "filesystem.h"
30 #include "indexfile.h"
31 #include "interlacemodes.h"
34 #include "mainerror.h"
36 #include "preferences.h"
42 #define av_register_all(s)
43 #define avfilter_register_all(s)
46 #define VIDEO_INBUF_SIZE 0x10000
47 #define AUDIO_INBUF_SIZE 0x10000
48 #define VIDEO_REFILL_THRESH 0
49 #define AUDIO_REFILL_THRESH 0x1000
50 #define AUDIO_MIN_FRAME_SZ 128
52 #define FF_ESTM_TIMES 0x0001
53 #define FF_BAD_TIMES 0x0002
55 Mutex FFMPEG::fflock("FFMPEG::fflock");
57 static void ff_err(int ret, const char *fmt, ...)
62 vsnprintf(msg, sizeof(msg), fmt, ap);
64 char errmsg[BCSTRLEN];
65 av_strerror(ret, errmsg, sizeof(errmsg));
66 fprintf(stderr,_("%s err: %s\n"),msg, errmsg);
72 pkt.data = 0; pkt.size = 0;
74 void FFPacket::finit()
76 av_packet_unref(&pkt);
79 FFrame::FFrame(FFStream *fst)
82 frm = av_frame_alloc();
83 init = fst->init_frame(frm);
91 void FFrame::queue(int64_t pos)
97 void FFrame::dequeue()
102 void FFrame::set_hw_frame(AVFrame *frame)
108 int FFAudioStream::read(float *fp, long len)
116 while( --k >= 0 ) *fp++ = *op++;
117 if( op >= lmt ) op = bfr;
122 void FFAudioStream::realloc(long nsz, int nch, long len)
124 long bsz = nsz * nch;
125 float *np = new float[bsz];
126 inp = np + read(np, len) * nch;
131 delete [] bfr; bfr = np;
134 void FFAudioStream::realloc(long nsz, int nch)
136 if( nsz > sz || this->nch != nch ) {
137 long len = this->nch != nch ? 0 : hpos;
138 if( len > sz ) len = sz;
140 realloc(nsz, nch, len);
144 void FFAudioStream::reserve(long nsz, int nch)
146 long len = (inp - outp) / nch;
148 if( nsz > sz || this->nch != nch ) {
149 if( this->nch != nch ) len = 0;
150 realloc(nsz, nch, len);
153 if( (len*=nch) > 0 && bfr != outp )
154 memmove(bfr, outp, len*sizeof(*bfr));
159 long FFAudioStream::used()
161 long len = inp>=outp ? inp-outp : inp-bfr + lmt-outp;
164 long FFAudioStream::avail()
167 if( in1 >= lmt ) in1 = bfr;
168 long len = outp >= in1 ? outp-in1 : outp-bfr + lmt-in1;
171 void FFAudioStream::reset_history()
175 memset(bfr, 0, lmt-bfr);
178 void FFAudioStream::iseek(int64_t ofs)
180 if( ofs > hpos ) ofs = hpos;
181 if( ofs > sz ) ofs = sz;
182 outp = inp - ofs*nch;
183 if( outp < bfr ) outp += sz*nch;
186 float *FFAudioStream::get_outp(int ofs)
193 int64_t FFAudioStream::put_inp(int ofs)
196 return (inp-outp) / nch;
199 int FFAudioStream::write(const float *fp, long len)
207 while( --k >= 0 ) *ip++ = *fp++;
208 if( ip >= lmt ) ip = bfr;
215 int FFAudioStream::zero(long len)
223 while( --k >= 0 ) *ip++ = 0;
224 if( ip >= lmt ) ip = bfr;
231 // does not advance outp
232 int FFAudioStream::read(double *dp, long len, int ch)
235 float *op = outp + ch;
236 float *lmt1 = lmt + nch-1;
238 int k = (lmt1 - op) / nch;
241 while( --k >= 0 ) { *dp++ = *op; op += nch; }
242 if( op >= lmt ) op -= sz*nch;
247 // load linear buffer, no wrapping allowed, does not advance inp
248 int FFAudioStream::write(const double *dp, long len, int ch)
251 float *ip = inp + ch;
252 while( --n >= 0 ) { *ip = *dp++; ip += nch; }
257 FFStream::FFStream(FFMPEG *ffmpeg, AVStream *st, int fidx)
259 this->ffmpeg = ffmpeg;
262 frm_lock = new Mutex("FFStream::frm_lock");
269 nudge = AV_NOPTS_VALUE;
270 seek_pos = curr_pos = 0;
272 reading = writing = 0;
273 hw_pixfmt = AV_PIX_FMT_NONE;
285 FFStream::~FFStream()
287 if( reading > 0 || writing > 0 ) avcodec_close(avctx);
288 if( avctx ) avcodec_free_context(&avctx);
289 if( fmt_ctx ) avformat_close_input(&fmt_ctx);
290 if( hw_device_ctx ) av_buffer_unref(&hw_device_ctx);
291 if( bsfc ) av_bsf_free(&bsfc);
292 while( frms.first ) frms.remove(frms.first);
293 if( filter_graph ) avfilter_graph_free(&filter_graph);
294 if( frame ) av_frame_free(&frame);
295 if( fframe ) av_frame_free(&fframe);
297 if( stats_fp ) fclose(stats_fp);
298 if( stats_in ) av_freep(&stats_in);
299 delete [] stats_filename;
302 void FFStream::ff_lock(const char *cp)
304 FFMPEG::fflock.lock(cp);
307 void FFStream::ff_unlock()
309 FFMPEG::fflock.unlock();
312 void FFStream::queue(FFrame *frm)
314 frm_lock->lock("FFStream::queue");
318 ffmpeg->mux_lock->unlock();
321 void FFStream::dequeue(FFrame *frm)
323 frm_lock->lock("FFStream::dequeue");
325 frms.remove_pointer(frm);
329 int FFStream::encode_activate()
332 writing = ffmpeg->encode_activate();
336 static AVPixelFormat hw_pix_fmt = AV_PIX_FMT_NONE; // protected by ff_lock
337 static enum AVPixelFormat get_hw_format(AVCodecContext *ctx,
338 const enum AVPixelFormat *pix_fmts)
340 for( const enum AVPixelFormat *p=pix_fmts; *p!=AV_PIX_FMT_NONE; ++p )
341 if( *p == hw_pix_fmt ) return *p;
342 fprintf(stderr, "Failed to get HW surface format.\n");
343 return hw_pix_fmt = AV_PIX_FMT_NONE;
347 AVHWDeviceType FFStream::decode_hw_activate()
349 return AV_HWDEVICE_TYPE_NONE;
352 int FFStream::decode_hw_format(AVCodec *decoder, AVHWDeviceType type)
357 int FFStream::decode_activate()
359 if( reading < 0 && (reading=ffmpeg->decode_activate()) > 0 ) {
360 ff_lock("FFStream::decode_activate");
362 AVDictionary *copts = 0;
363 av_dict_copy(&copts, ffmpeg->opts, 0);
365 AVHWDeviceType hw_type = decode_hw_activate();
367 // this should be avformat_copy_context(), but no copy avail
368 ret = avformat_open_input(&fmt_ctx,
369 ffmpeg->fmt_ctx->url, ffmpeg->fmt_ctx->iformat, &copts);
371 ret = avformat_find_stream_info(fmt_ctx, 0);
372 st = fmt_ctx->streams[fidx];
375 while( ret >= 0 && st != 0 && !reading ) {
376 AVCodecID codec_id = st->codecpar->codec_id;
377 AVCodec *decoder = 0;
379 if( ffmpeg->opt_video_decoder )
380 decoder = avcodec_find_decoder_by_name(ffmpeg->opt_video_decoder);
382 ffmpeg->video_codec_remaps.update(codec_id, decoder);
384 else if( is_audio() ) {
385 if( ffmpeg->opt_audio_decoder )
386 decoder = avcodec_find_decoder_by_name(ffmpeg->opt_audio_decoder);
388 ffmpeg->audio_codec_remaps.update(codec_id, decoder);
391 decoder = avcodec_find_decoder(codec_id);
392 avctx = avcodec_alloc_context3(decoder);
394 eprintf(_("cant allocate codec context\n"));
395 ret = AVERROR(ENOMEM);
397 if( ret >= 0 && hw_type != AV_HWDEVICE_TYPE_NONE ) {
398 ret = decode_hw_format(decoder, hw_type);
399 if( !ret ) hw_type = AV_HWDEVICE_TYPE_NONE;
402 avcodec_parameters_to_context(avctx, st->codecpar);
403 if( !av_dict_get(copts, "threads", NULL, 0) )
404 avctx->thread_count = ffmpeg->ff_cpus();
405 ret = avcodec_open2(avctx, decoder, &copts);
407 if( ret >= 0 && hw_type != AV_HWDEVICE_TYPE_NONE ) {
413 AVPacket *pkt = (AVPacket*)ipkt;
414 ret = avcodec_send_packet(avctx, pkt);
415 if( ret < 0 || hw_pix_fmt == AV_PIX_FMT_NONE ) {
416 ff_err(ret, "HW device init failed, using SW decode.\nfile:%s\n",
417 ffmpeg->fmt_ctx->url);
418 avcodec_close(avctx);
419 avcodec_free_context(&avctx);
420 av_buffer_unref(&hw_device_ctx);
422 hw_type = AV_HWDEVICE_TYPE_NONE;
423 int flags = AVSEEK_FLAG_BACKWARD | AVSEEK_FLAG_ANY;
425 av_seek_frame(fmt_ctx, idx, INT64_MIN, flags);
426 need_packet = 1; flushed = 0;
427 seeked = 1; st_eof(0);
437 eprintf(_("open decoder failed\n"));
440 eprintf(_("can't open input file: %s\n"), ffmpeg->fmt_ctx->url);
441 av_dict_free(&copts);
447 int FFStream::read_packet()
449 av_packet_unref(ipkt);
450 int ret = av_read_frame(fmt_ctx, ipkt);
453 if( ret == AVERROR_EOF ) return 0;
454 ff_err(ret, "FFStream::read_packet: av_read_frame failed\n");
461 int FFStream::decode(AVFrame *frame)
464 int retries = MAX_RETRY;
466 while( ret >= 0 && !flushed && --retries >= 0 ) {
468 if( (ret=read_packet()) < 0 ) break;
469 AVPacket *pkt = ret > 0 ? (AVPacket*)ipkt : 0;
471 if( pkt->stream_index != st->index ) continue;
472 if( !pkt->data || !pkt->size ) continue;
474 if( (ret=avcodec_send_packet(avctx, pkt)) < 0 ) {
475 ff_err(ret, "FFStream::decode: avcodec_send_packet failed.\nfile:%s\n",
476 ffmpeg->fmt_ctx->url);
482 if( (ret=decode_frame(frame)) > 0 ) break;
490 fprintf(stderr, "FFStream::decode: Retry limit\n");
494 fprintf(stderr, "FFStream::decode: failed\n");
498 int FFStream::load_filter(AVFrame *frame)
500 int ret = av_buffersrc_add_frame_flags(buffersrc_ctx, frame, 0);
502 eprintf(_("av_buffersrc_add_frame_flags failed\n"));
506 int FFStream::read_filter(AVFrame *frame)
508 int ret = av_buffersink_get_frame(buffersink_ctx, frame);
510 if( ret == AVERROR(EAGAIN) ) return 0;
511 if( ret == AVERROR_EOF ) { st_eof(1); return -1; }
512 ff_err(ret, "FFStream::read_filter: av_buffersink_get_frame failed\n");
518 int FFStream::read_frame(AVFrame *frame)
520 av_frame_unref(frame);
521 if( !filter_graph || !buffersrc_ctx || !buffersink_ctx )
522 return decode(frame);
523 if( !fframe && !(fframe=av_frame_alloc()) ) {
524 fprintf(stderr, "FFStream::read_frame: av_frame_alloc failed\n");
528 while( !flushed && !(ret=read_filter(frame)) ) {
529 if( (ret=decode(fframe)) < 0 ) break;
530 if( ret > 0 && (ret=load_filter(fframe)) < 0 ) break;
535 int FFStream::write_packet(FFPacket &pkt)
539 av_packet_rescale_ts(pkt, avctx->time_base, st->time_base);
540 pkt->stream_index = st->index;
541 ret = av_interleaved_write_frame(ffmpeg->fmt_ctx, pkt);
544 ret = av_bsf_send_packet(bsfc, pkt);
547 if( (ret=av_bsf_receive_packet(bsfc, bs)) < 0 ) {
548 if( ret == AVERROR(EAGAIN) ) return 0;
549 if( ret == AVERROR_EOF ) return -1;
552 av_packet_rescale_ts(bs, avctx->time_base, st->time_base);
553 bs->stream_index = st->index;
554 ret = av_interleaved_write_frame(ffmpeg->fmt_ctx, bs);
558 ff_err(ret, "FFStream::write_packet: write packet failed.\nfile:%s\n",
559 ffmpeg->fmt_ctx->url);
563 int FFStream::encode_frame(AVFrame *frame)
565 int pkts = 0, ret = 0;
566 for( int retry=MAX_RETRY; --retry>=0; ) {
568 ret = avcodec_send_frame(avctx, frame);
569 if( !ret && frame ) return pkts;
570 if( ret < 0 && ret != AVERROR(EAGAIN) ) break;
572 ret = avcodec_receive_packet(avctx, opkt);
573 if( !frame && ret == AVERROR_EOF ) return pkts;
575 ret = write_packet(opkt);
578 if( frame && stats_fp ) {
579 ret = write_stats_file();
583 ff_err(ret, "FFStream::encode_frame: encode failed.\nfile: %s\n",
584 ffmpeg->fmt_ctx->url);
588 int FFStream::flush()
592 int ret = encode_frame(0);
593 if( ret >= 0 && stats_fp ) {
594 ret = write_stats_file();
598 ff_err(ret, "FFStream::flush failed\n:file:%s\n",
599 ffmpeg->fmt_ctx->url);
600 return ret >= 0 ? 0 : 1;
604 int FFStream::open_stats_file()
606 stats_fp = fopen(stats_filename,"w");
607 return stats_fp ? 0 : AVERROR(errno);
610 int FFStream::close_stats_file()
613 fclose(stats_fp); stats_fp = 0;
618 int FFStream::read_stats_file()
620 int64_t len = 0; struct stat stats_st;
621 int fd = open(stats_filename, O_RDONLY);
622 int ret = fd >= 0 ? 0: ENOENT;
623 if( !ret && fstat(fd, &stats_st) )
626 len = stats_st.st_size;
627 stats_in = (char *)av_malloc(len+1);
631 if( !ret && read(fd, stats_in, len+1) != len )
635 avctx->stats_in = stats_in;
639 return !ret ? 0 : AVERROR(ret);
642 int FFStream::write_stats_file()
645 if( avctx->stats_out && (ret=strlen(avctx->stats_out)) > 0 ) {
646 int len = fwrite(avctx->stats_out, 1, ret, stats_fp);
648 ff_err(ret = AVERROR(errno), "FFStream::write_stats_file.\n%file:%s\n",
649 ffmpeg->fmt_ctx->url);
654 int FFStream::init_stats_file()
657 if( (pass & 2) && (ret = read_stats_file()) < 0 )
658 ff_err(ret, "stat file read: %s", stats_filename);
659 if( (pass & 1) && (ret=open_stats_file()) < 0 )
660 ff_err(ret, "stat file open: %s", stats_filename);
661 return ret >= 0 ? 0 : ret;
664 int FFStream::seek(int64_t no, double rate)
666 // default ffmpeg native seek
668 int64_t pos = no, pkt_pos = -1;
669 IndexMarks *index_markers = get_markers();
670 if( index_markers && index_markers->size() > 1 ) {
671 IndexMarks &marks = *index_markers;
672 int i = marks.find(pos);
673 int64_t n = i < 0 ? (i=0) : marks[i].no;
674 // if indexed seek point not too far away (<30 secs), use index
675 if( no-n < 30*rate ) {
678 if( i < marks.size() ) pkt_pos = marks[i].pos;
682 if( pos == curr_pos ) return 0;
683 double secs = pos < 0 ? 0. : pos / rate;
684 AVRational time_base = st->time_base;
685 int64_t tstmp = time_base.num > 0 ? secs * time_base.den/time_base.num : 0;
687 if( st->nb_index_entries > 0 ) tstmp = st->index_entries[0].timestamp;
688 else if( st->start_time != AV_NOPTS_VALUE ) tstmp = st->start_time;
689 else if( st->first_dts != AV_NOPTS_VALUE ) tstmp = st->first_dts;
690 else tstmp = INT64_MIN+1;
692 else if( nudge != AV_NOPTS_VALUE ) tstmp += nudge;
695 // seek all streams using the default timebase.
696 // this is how ffmpeg and ffplay work. stream seeks are less tested.
697 tstmp = av_rescale_q(tstmp, time_base, AV_TIME_BASE_Q);
701 avcodec_flush_buffers(avctx);
702 avformat_flush(fmt_ctx);
704 int64_t seek = tstmp;
705 int flags = AVSEEK_FLAG_ANY;
706 if( !(fmt_ctx->iformat->flags & AVFMT_NO_BYTE_SEEK) && pkt_pos >= 0 ) {
708 flags = AVSEEK_FLAG_BYTE;
710 int ret = avformat_seek_file(fmt_ctx, st->index, -INT64_MAX, seek, INT64_MAX, flags);
712 // finds the first index frame below the target time
713 int flags = AVSEEK_FLAG_BACKWARD | AVSEEK_FLAG_ANY;
714 int ret = av_seek_frame(fmt_ctx, idx, tstmp, flags);
716 int retry = MAX_RETRY;
718 need_packet = 0; flushed = 0;
719 seeked = 1; st_eof(0);
720 // read up to retry packets, limited to npkts in stream, and not pkt.pos past pkt_pos
721 while( --retry >= 0 ) {
722 if( read_packet() <= 0 ) { ret = -1; break; }
723 if( ipkt->stream_index != st->index ) continue;
724 if( !ipkt->data || !ipkt->size ) continue;
725 if( pkt_pos >= 0 && ipkt->pos >= pkt_pos ) break;
726 if( --npkts <= 0 ) break;
727 int64_t pkt_ts = ipkt->dts != AV_NOPTS_VALUE ? ipkt->dts : ipkt->pts;
728 if( pkt_ts == AV_NOPTS_VALUE ) continue;
729 if( pkt_ts >= tstmp ) break;
732 fprintf(stderr,"FFStream::seek: retry limit, pos=%jd tstmp=%jd\n",pos,tstmp);
736 ret = avcodec_send_packet(avctx, ipkt);
738 //some codecs need more than one pkt to resync
739 if( ret == AVERROR_INVALIDDATA ) ret = 0;
741 ff_err(ret, "FFStream::avcodec_send_packet failed.\nseek:%s\n",
742 ffmpeg->fmt_ctx->url);
747 printf("** seek fail %jd, %jd\n", pos, tstmp);
748 seeked = need_packet = 0;
752 //printf("seeked pos = %ld, %ld\n", pos, tstmp);
753 seek_pos = curr_pos = pos;
757 FFAudioStream::FFAudioStream(FFMPEG *ffmpeg, AVStream *strm, int idx, int fidx)
758 : FFStream(ffmpeg, strm, fidx)
761 channel0 = channels = 0;
764 frame_sz = AUDIO_MIN_FRAME_SZ;
766 resample_context = 0;
767 swr_ichs = swr_ifmt = swr_irate = 0;
776 bfr = new float[bsz];
781 FFAudioStream::~FFAudioStream()
783 if( resample_context ) swr_free(&resample_context);
788 void FFAudioStream::init_swr(int ichs, int ifmt, int irate)
790 if( resample_context ) {
791 if( swr_ichs == ichs && swr_ifmt == ifmt && swr_irate == irate )
793 swr_free(&resample_context);
795 swr_ichs = ichs; swr_ifmt = ifmt; swr_irate = irate;
796 if( ichs == channels && ifmt == AV_SAMPLE_FMT_FLT && irate == sample_rate )
798 uint64_t ilayout = av_get_default_channel_layout(ichs);
799 if( !ilayout ) ilayout = ((uint64_t)1<<ichs) - 1;
800 uint64_t olayout = av_get_default_channel_layout(channels);
801 if( !olayout ) olayout = ((uint64_t)1<<channels) - 1;
802 resample_context = swr_alloc_set_opts(NULL,
803 olayout, AV_SAMPLE_FMT_FLT, sample_rate,
804 ilayout, (AVSampleFormat)ifmt, irate,
806 if( resample_context )
807 swr_init(resample_context);
810 int FFAudioStream::get_samples(float *&samples, uint8_t **data, int len)
812 samples = *(float **)data;
813 if( resample_context ) {
814 if( len > aud_bfr_sz ) {
820 aud_bfr = new float[aud_bfr_sz*channels];
822 int ret = swr_convert(resample_context,
823 (uint8_t**)&aud_bfr, aud_bfr_sz, (const uint8_t**)data, len);
825 ff_err(ret, "FFAudioStream::get_samples: swr_convert failed\n");
834 int FFAudioStream::load_history(uint8_t **data, int len)
837 len = get_samples(samples, data, len);
839 // biggest user bfr since seek + frame
840 realloc(mbsz + len + 1, channels);
846 int FFAudioStream::decode_frame(AVFrame *frame)
848 int first_frame = seeked; seeked = 0;
849 frame->best_effort_timestamp = AV_NOPTS_VALUE;
850 int ret = avcodec_receive_frame(avctx, frame);
852 if( first_frame ) return 0;
853 if( ret == AVERROR(EAGAIN) ) return 0;
854 if( ret == AVERROR_EOF ) { st_eof(1); return 0; }
855 ff_err(ret, "FFAudioStream::decode_frame: Could not read audio frame.\nfile:%s\n",
856 ffmpeg->fmt_ctx->url);
859 int64_t pkt_ts = frame->best_effort_timestamp;
860 if( pkt_ts != AV_NOPTS_VALUE ) {
861 double ts = ffmpeg->to_secs(pkt_ts - nudge, st->time_base);
862 double t = (double)curr_pos / sample_rate;
863 // some time_base clocks are very grainy, too grainy for audio (clicks, pops)
864 if( fabs(ts - t) > AUDIO_PTS_TOLERANCE )
865 curr_pos = ts * sample_rate + 0.5;
870 int FFAudioStream::encode_activate()
872 if( writing >= 0 ) return writing;
873 if( !avctx->codec ) return writing = 0;
874 frame_sz = avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE ?
875 10000 : avctx->frame_size;
876 return FFStream::encode_activate();
879 int64_t FFAudioStream::load_buffer(double ** const sp, int len)
881 reserve(len+1, st->codecpar->channels);
882 for( int ch=0; ch<nch; ++ch )
883 write(sp[ch], len, ch);
887 int FFAudioStream::in_history(int64_t pos)
889 if( pos > curr_pos ) return 0;
891 if( len > sz ) len = sz;
892 if( pos < curr_pos - len ) return 0;
897 int FFAudioStream::init_frame(AVFrame *frame)
899 frame->nb_samples = frame_sz;
900 frame->format = avctx->sample_fmt;
901 frame->channel_layout = avctx->channel_layout;
902 frame->sample_rate = avctx->sample_rate;
903 int ret = av_frame_get_buffer(frame, 0);
905 ff_err(ret, "FFAudioStream::init_frame: av_frame_get_buffer failed\n");
909 int FFAudioStream::load(int64_t pos, int len)
911 if( audio_seek(pos) < 0 ) return -1;
912 if( !frame && !(frame=av_frame_alloc()) ) {
913 fprintf(stderr, "FFAudioStream::load: av_frame_alloc failed\n");
916 if( mbsz < len ) mbsz = len;
917 int64_t end_pos = pos + len;
918 int ret = 0, i = len / frame_sz + MAX_RETRY;
919 while( ret>=0 && !flushed && curr_pos<end_pos && --i>=0 ) {
920 ret = read_frame(frame);
921 if( ret > 0 && frame->nb_samples > 0 ) {
922 init_swr(frame->channels, frame->format, frame->sample_rate);
923 load_history(&frame->extended_data[0], frame->nb_samples);
924 curr_pos += frame->nb_samples;
927 if( end_pos > curr_pos ) {
928 zero(end_pos - curr_pos);
931 len = curr_pos - pos;
936 int FFAudioStream::audio_seek(int64_t pos)
938 if( decode_activate() <= 0 ) return -1;
939 if( !st->codecpar ) return -1;
940 if( in_history(pos) ) return 0;
941 if( pos == curr_pos ) return 0;
942 reset_history(); mbsz = 0;
943 // guarentee preload > 1sec samples
944 if( (pos-=sample_rate) < 0 ) pos = 0;
945 if( seek(pos, sample_rate) < 0 ) return -1;
949 int FFAudioStream::encode(double **samples, int len)
951 if( encode_activate() <= 0 ) return -1;
954 int64_t count = samples ? load_buffer(samples, len) : used();
955 int frame_sz1 = samples ? frame_sz-1 : 0;
958 while( ret >= 0 && count > frame_sz1 ) {
959 frm = new FFrame(this);
960 if( (ret=frm->initted()) < 0 ) break;
961 AVFrame *frame = *frm;
962 len = count >= frame_sz ? frame_sz : count;
963 float *bfrp = get_outp(len);
964 ret = swr_convert(resample_context,
965 (uint8_t **)frame->extended_data, len,
966 (const uint8_t **)&bfrp, len);
968 ff_err(ret, "FFAudioStream::encode: swr_convert failed\n");
971 frame->nb_samples = len;
972 frm->queue(curr_pos);
979 return ret >= 0 ? 0 : 1;
982 int FFAudioStream::drain()
987 int FFAudioStream::encode_frame(AVFrame *frame)
989 return FFStream::encode_frame(frame);
992 int FFAudioStream::write_packet(FFPacket &pkt)
994 return FFStream::write_packet(pkt);
997 void FFAudioStream::load_markers()
999 IndexState *index_state = ffmpeg->file_base->asset->index_state;
1000 if( !index_state || idx >= index_state->audio_markers.size() ) return;
1001 if( index_state->marker_status == MARKERS_NOTTESTED ) return;
1002 FFStream::load_markers(*index_state->audio_markers[idx], sample_rate);
1005 IndexMarks *FFAudioStream::get_markers()
1007 IndexState *index_state = ffmpeg->file_base->asset->index_state;
1008 if( !index_state || idx >= index_state->audio_markers.size() ) return 0;
1009 return index_state->audio_markers[idx];
1012 FFVideoStream::FFVideoStream(FFMPEG *ffmpeg, AVStream *strm, int idx, int fidx)
1013 : FFStream(ffmpeg, strm, fidx)
1021 top_field_first = 0;
1024 FFVideoStream::~FFVideoStream()
1028 AVHWDeviceType FFVideoStream::decode_hw_activate()
1030 AVHWDeviceType type = AV_HWDEVICE_TYPE_NONE;
1031 const char *hw_dev = ffmpeg->opt_hw_dev;
1032 if( !hw_dev ) hw_dev = getenv("CIN_HW_DEV");
1033 if( !hw_dev ) hw_dev = ffmpeg->ff_hw_dev();
1034 if( hw_dev && *hw_dev && strcmp(_("none"), hw_dev) ) {
1035 type = av_hwdevice_find_type_by_name(hw_dev);
1036 if( type == AV_HWDEVICE_TYPE_NONE ) {
1037 fprintf(stderr, "Device type %s is not supported.\n", hw_dev);
1038 fprintf(stderr, "Available device types:");
1039 while( (type = av_hwdevice_iterate_types(type)) != AV_HWDEVICE_TYPE_NONE )
1040 fprintf(stderr, " %s", av_hwdevice_get_type_name(type));
1041 fprintf(stderr, "\n");
1047 int FFVideoStream::decode_hw_format(AVCodec *decoder, AVHWDeviceType type)
1050 hw_pix_fmt = AV_PIX_FMT_NONE;
1051 for( int i=0; ; ++i ) {
1052 const AVCodecHWConfig *config = avcodec_get_hw_config(decoder, i);
1054 fprintf(stderr, "Decoder %s does not support device type %s.\n",
1055 decoder->name, av_hwdevice_get_type_name(type));
1058 if( (config->methods & AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX) != 0 &&
1059 config->device_type == type ) {
1060 hw_pix_fmt = config->pix_fmt;
1064 if( hw_pix_fmt >= 0 ) {
1065 hw_pixfmt = hw_pix_fmt;
1066 avctx->get_format = get_hw_format;
1067 ret = av_hwdevice_ctx_create(&hw_device_ctx, type, 0, 0, 0);
1069 avctx->hw_device_ctx = av_buffer_ref(hw_device_ctx);
1073 ff_err(ret, "Failed HW device create.\ndev:%s\n",
1074 av_hwdevice_get_type_name(type));
1079 AVHWDeviceType FFVideoStream::encode_hw_activate(const char *hw_dev)
1081 AVBufferRef *hw_device_ctx = 0;
1082 AVBufferRef *hw_frames_ref = 0;
1083 AVHWDeviceType type = AV_HWDEVICE_TYPE_NONE;
1084 if( strcmp(_("none"), hw_dev) ) {
1085 type = av_hwdevice_find_type_by_name(hw_dev);
1086 if( type != AV_HWDEVICE_TYPE_VAAPI ) {
1087 fprintf(stderr, "currently, only vaapi hw encode is supported\n");
1088 type = AV_HWDEVICE_TYPE_NONE;
1091 if( type != AV_HWDEVICE_TYPE_NONE ) {
1092 int ret = av_hwdevice_ctx_create(&hw_device_ctx, AV_HWDEVICE_TYPE_VAAPI, 0, 0, 0);
1094 ff_err(ret, "Failed to create a HW device.\n");
1095 type = AV_HWDEVICE_TYPE_NONE;
1098 if( type != AV_HWDEVICE_TYPE_NONE ) {
1099 hw_frames_ref = av_hwframe_ctx_alloc(hw_device_ctx);
1100 if( !hw_frames_ref ) {
1101 fprintf(stderr, "Failed to create HW frame context.\n");
1102 type = AV_HWDEVICE_TYPE_NONE;
1105 if( type != AV_HWDEVICE_TYPE_NONE ) {
1106 AVHWFramesContext *frames_ctx = (AVHWFramesContext *)(hw_frames_ref->data);
1107 frames_ctx->format = AV_PIX_FMT_VAAPI;
1108 frames_ctx->sw_format = AV_PIX_FMT_NV12;
1109 frames_ctx->width = width;
1110 frames_ctx->height = height;
1111 frames_ctx->initial_pool_size = 0; // 200;
1112 int ret = av_hwframe_ctx_init(hw_frames_ref);
1114 avctx->hw_frames_ctx = av_buffer_ref(hw_frames_ref);
1115 if( !avctx->hw_frames_ctx ) ret = AVERROR(ENOMEM);
1118 ff_err(ret, "Failed to initialize HW frame context.\n");
1119 type = AV_HWDEVICE_TYPE_NONE;
1121 av_buffer_unref(&hw_frames_ref);
1126 int FFVideoStream::encode_hw_write(FFrame *picture)
1129 AVFrame *hw_frm = 0;
1130 switch( avctx->pix_fmt ) {
1131 case AV_PIX_FMT_VAAPI:
1132 hw_frm = av_frame_alloc();
1133 if( !hw_frm ) { ret = AVERROR(ENOMEM); break; }
1134 ret = av_hwframe_get_buffer(avctx->hw_frames_ctx, hw_frm, 0);
1135 if( ret < 0 ) break;
1136 ret = av_hwframe_transfer_data(hw_frm, *picture, 0);
1137 if( ret < 0 ) break;
1138 picture->set_hw_frame(hw_frm);
1143 av_frame_free(&hw_frm);
1144 ff_err(ret, "Error while transferring frame data to GPU.\n");
1148 int FFVideoStream::decode_frame(AVFrame *frame)
1150 int first_frame = seeked; seeked = 0;
1151 int ret = avcodec_receive_frame(avctx, frame);
1153 if( first_frame ) return 0;
1154 if( ret == AVERROR(EAGAIN) ) return 0;
1155 if( ret == AVERROR_EOF ) { st_eof(1); return 0; }
1156 ff_err(ret, "FFVideoStream::decode_frame: Could not read video frame.\nfile:%s\n,",
1157 ffmpeg->fmt_ctx->url);
1160 int64_t pkt_ts = frame->best_effort_timestamp;
1161 if( pkt_ts != AV_NOPTS_VALUE )
1162 curr_pos = ffmpeg->to_secs(pkt_ts - nudge, st->time_base) * frame_rate + 0.5;
1166 int FFVideoStream::load(VFrame *vframe, int64_t pos)
1168 int ret = video_seek(pos);
1169 if( ret < 0 ) return -1;
1170 if( !frame && !(frame=av_frame_alloc()) ) {
1171 fprintf(stderr, "FFVideoStream::load: av_frame_alloc failed\n");
1174 int i = MAX_RETRY + pos - curr_pos;
1175 while( ret>=0 && !flushed && curr_pos<=pos && --i>=0 ) {
1176 ret = read_frame(frame);
1177 if( ret > 0 ) ++curr_pos;
1179 if( frame->format == AV_PIX_FMT_NONE || frame->width <= 0 || frame->height <= 0 )
1182 ret = convert_cmodel(vframe, frame);
1184 ret = ret > 0 ? 1 : ret < 0 ? -1 : 0;
1188 int FFVideoStream::video_seek(int64_t pos)
1190 if( decode_activate() <= 0 ) return -1;
1191 if( !st->codecpar ) return -1;
1192 if( pos == curr_pos-1 && !seeked ) return 0;
1193 // if close enough, just read up to current
1194 int gop = avctx->gop_size;
1195 if( gop < 4 ) gop = 4;
1196 if( gop > 64 ) gop = 64;
1197 int read_limit = curr_pos + 3*gop;
1198 if( pos >= curr_pos && pos <= read_limit ) return 0;
1199 // guarentee preload more than 2*gop frames
1200 if( seek(pos - 3*gop, frame_rate) < 0 ) return -1;
1204 int FFVideoStream::init_frame(AVFrame *picture)
1206 switch( avctx->pix_fmt ) {
1207 case AV_PIX_FMT_VAAPI:
1208 picture->format = AV_PIX_FMT_NV12;
1211 picture->format = avctx->pix_fmt;
1214 picture->width = avctx->width;
1215 picture->height = avctx->height;
1216 int ret = av_frame_get_buffer(picture, 32);
1220 int FFVideoStream::encode(VFrame *vframe)
1222 if( encode_activate() <= 0 ) return -1;
1224 FFrame *picture = new FFrame(this);
1225 int ret = picture->initted();
1227 AVFrame *frame = *picture;
1228 frame->pts = curr_pos;
1229 ret = convert_pixfmt(vframe, frame);
1231 if( ret >= 0 && avctx->hw_frames_ctx )
1232 encode_hw_write(picture);
1234 picture->queue(curr_pos);
1238 fprintf(stderr, "FFVideoStream::encode: encode failed\n");
1241 return ret >= 0 ? 0 : 1;
1244 int FFVideoStream::drain()
1249 int FFVideoStream::encode_frame(AVFrame *frame)
1252 frame->interlaced_frame = interlaced;
1253 frame->top_field_first = top_field_first;
1255 if( frame && frame->format == AV_PIX_FMT_VAAPI ) { // ugly
1256 int ret = avcodec_send_frame(avctx, frame);
1257 for( int retry=MAX_RETRY; !ret && --retry>=0; ) {
1258 FFPacket pkt; av_init_packet(pkt);
1259 pkt->data = NULL; pkt->size = 0;
1260 if( (ret=avcodec_receive_packet(avctx, pkt)) < 0 ) {
1261 if( ret == AVERROR(EAGAIN) ) ret = 0; // weird
1264 ret = write_packet(pkt);
1265 pkt->stream_index = 0;
1266 av_packet_unref(pkt);
1269 ff_err(ret, "FFStream::encode_frame: vaapi encode failed.\nfile: %s\n",
1270 ffmpeg->fmt_ctx->url);
1275 return FFStream::encode_frame(frame);
1278 int FFVideoStream::write_packet(FFPacket &pkt)
1280 if( !(ffmpeg->fmt_ctx->oformat->flags & AVFMT_VARIABLE_FPS) )
1282 return FFStream::write_packet(pkt);
1285 AVPixelFormat FFVideoConvert::color_model_to_pix_fmt(int color_model)
1287 switch( color_model ) {
1288 case BC_YUV422: return AV_PIX_FMT_YUYV422;
1289 case BC_RGB888: return AV_PIX_FMT_RGB24;
1290 case BC_RGBA8888: return AV_PIX_FMT_RGBA;
1291 case BC_BGR8888: return AV_PIX_FMT_BGR0;
1292 case BC_BGR888: return AV_PIX_FMT_BGR24;
1293 case BC_ARGB8888: return AV_PIX_FMT_ARGB;
1294 case BC_ABGR8888: return AV_PIX_FMT_ABGR;
1295 case BC_RGB8: return AV_PIX_FMT_RGB8;
1296 case BC_YUV420P: return AV_PIX_FMT_YUV420P;
1297 case BC_YUV422P: return AV_PIX_FMT_YUV422P;
1298 case BC_YUV444P: return AV_PIX_FMT_YUV444P;
1299 case BC_YUV411P: return AV_PIX_FMT_YUV411P;
1300 case BC_RGB565: return AV_PIX_FMT_RGB565;
1301 case BC_RGB161616: return AV_PIX_FMT_RGB48LE;
1302 case BC_RGBA16161616: return AV_PIX_FMT_RGBA64LE;
1303 case BC_AYUV16161616: return AV_PIX_FMT_AYUV64LE;
1304 case BC_GBRP: return AV_PIX_FMT_GBRP;
1308 return AV_PIX_FMT_NB;
1311 int FFVideoConvert::pix_fmt_to_color_model(AVPixelFormat pix_fmt)
1314 case AV_PIX_FMT_YUYV422: return BC_YUV422;
1315 case AV_PIX_FMT_RGB24: return BC_RGB888;
1316 case AV_PIX_FMT_RGBA: return BC_RGBA8888;
1317 case AV_PIX_FMT_BGR0: return BC_BGR8888;
1318 case AV_PIX_FMT_BGR24: return BC_BGR888;
1319 case AV_PIX_FMT_ARGB: return BC_ARGB8888;
1320 case AV_PIX_FMT_ABGR: return BC_ABGR8888;
1321 case AV_PIX_FMT_RGB8: return BC_RGB8;
1322 case AV_PIX_FMT_YUV420P: return BC_YUV420P;
1323 case AV_PIX_FMT_YUV422P: return BC_YUV422P;
1324 case AV_PIX_FMT_YUV444P: return BC_YUV444P;
1325 case AV_PIX_FMT_YUV411P: return BC_YUV411P;
1326 case AV_PIX_FMT_RGB565: return BC_RGB565;
1327 case AV_PIX_FMT_RGB48LE: return BC_RGB161616;
1328 case AV_PIX_FMT_RGBA64LE: return BC_RGBA16161616;
1329 case AV_PIX_FMT_AYUV64LE: return BC_AYUV16161616;
1330 case AV_PIX_FMT_GBRP: return BC_GBRP;
1337 int FFVideoConvert::convert_picture_vframe(VFrame *frame, AVFrame *ip)
1339 AVFrame *ipic = av_frame_alloc();
1340 int ret = convert_picture_vframe(frame, ip, ipic);
1341 av_frame_free(&ipic);
1345 int FFVideoConvert::convert_picture_vframe(VFrame *frame, AVFrame *ip, AVFrame *ipic)
1347 int cmodel = frame->get_color_model();
1348 AVPixelFormat ofmt = color_model_to_pix_fmt(cmodel);
1349 if( ofmt == AV_PIX_FMT_NB ) return -1;
1350 int size = av_image_fill_arrays(ipic->data, ipic->linesize,
1351 frame->get_data(), ofmt, frame->get_w(), frame->get_h(), 1);
1352 if( size < 0 ) return -1;
1354 int bpp = BC_CModels::calculate_pixelsize(cmodel);
1355 int ysz = bpp * frame->get_w(), usz = ysz;
1365 // override av_image_fill_arrays() for planar types
1366 ipic->data[0] = frame->get_y(); ipic->linesize[0] = ysz;
1367 ipic->data[1] = frame->get_u(); ipic->linesize[1] = usz;
1368 ipic->data[2] = frame->get_v(); ipic->linesize[2] = usz;
1371 ipic->data[0] = frame->get_data();
1372 ipic->linesize[0] = frame->get_bytes_per_line();
1376 AVPixelFormat pix_fmt = (AVPixelFormat)ip->format;
1377 FFVideoStream *vid =(FFVideoStream *)this;
1378 if( pix_fmt == vid->hw_pixfmt ) {
1380 if( !sw_frame && !(sw_frame=av_frame_alloc()) )
1381 ret = AVERROR(ENOMEM);
1383 ret = av_hwframe_transfer_data(sw_frame, ip, 0);
1385 pix_fmt = (AVPixelFormat)ip->format;
1388 eprintf(_("Error retrieving data from GPU to CPU\nfile: %s\n"),
1389 vid->ffmpeg->fmt_ctx->url);
1393 convert_ctx = sws_getCachedContext(convert_ctx, ip->width, ip->height, pix_fmt,
1394 frame->get_w(), frame->get_h(), ofmt, SWS_POINT, NULL, NULL, NULL);
1395 if( !convert_ctx ) {
1396 fprintf(stderr, "FFVideoConvert::convert_picture_frame:"
1397 " sws_getCachedContext() failed\n");
1400 int ret = sws_scale(convert_ctx, ip->data, ip->linesize, 0, ip->height,
1401 ipic->data, ipic->linesize);
1403 ff_err(ret, "FFVideoConvert::convert_picture_frame: sws_scale() failed\nfile: %s\n",
1404 vid->ffmpeg->fmt_ctx->url);
1410 int FFVideoConvert::convert_cmodel(VFrame *frame, AVFrame *ip)
1412 // try direct transfer
1413 if( !convert_picture_vframe(frame, ip) ) return 1;
1414 // use indirect transfer
1415 AVPixelFormat ifmt = (AVPixelFormat)ip->format;
1416 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(ifmt);
1418 for( int i = 0; i <desc->nb_components; ++i ) {
1419 int bits = desc->comp[i].depth;
1420 if( bits > max_bits ) max_bits = bits;
1422 int imodel = pix_fmt_to_color_model(ifmt);
1423 int imodel_is_yuv = BC_CModels::is_yuv(imodel);
1424 int cmodel = frame->get_color_model();
1425 int cmodel_is_yuv = BC_CModels::is_yuv(cmodel);
1426 if( imodel < 0 || imodel_is_yuv != cmodel_is_yuv ) {
1427 imodel = cmodel_is_yuv ?
1428 (BC_CModels::has_alpha(cmodel) ?
1430 (max_bits > 8 ? BC_AYUV16161616 : BC_YUV444P)) :
1431 (BC_CModels::has_alpha(cmodel) ?
1432 (max_bits > 8 ? BC_RGBA16161616 : BC_RGBA8888) :
1433 (max_bits > 8 ? BC_RGB161616 : BC_RGB888)) ;
1435 VFrame vframe(ip->width, ip->height, imodel);
1436 if( convert_picture_vframe(&vframe, ip) ) return -1;
1437 frame->transfer_from(&vframe);
1441 int FFVideoConvert::transfer_cmodel(VFrame *frame, AVFrame *ifp)
1443 int ret = convert_cmodel(frame, ifp);
1445 const AVDictionary *src = ifp->metadata;
1446 AVDictionaryEntry *t = NULL;
1447 BC_Hash *hp = frame->get_params();
1449 while( (t=av_dict_get(src, "", t, AV_DICT_IGNORE_SUFFIX)) )
1450 hp->update(t->key, t->value);
1455 int FFVideoConvert::convert_vframe_picture(VFrame *frame, AVFrame *op)
1457 AVFrame *opic = av_frame_alloc();
1458 int ret = convert_vframe_picture(frame, op, opic);
1459 av_frame_free(&opic);
1463 int FFVideoConvert::convert_vframe_picture(VFrame *frame, AVFrame *op, AVFrame *opic)
1465 int cmodel = frame->get_color_model();
1466 AVPixelFormat ifmt = color_model_to_pix_fmt(cmodel);
1467 if( ifmt == AV_PIX_FMT_NB ) return -1;
1468 int size = av_image_fill_arrays(opic->data, opic->linesize,
1469 frame->get_data(), ifmt, frame->get_w(), frame->get_h(), 1);
1470 if( size < 0 ) return -1;
1472 int bpp = BC_CModels::calculate_pixelsize(cmodel);
1473 int ysz = bpp * frame->get_w(), usz = ysz;
1483 // override av_image_fill_arrays() for planar types
1484 opic->data[0] = frame->get_y(); opic->linesize[0] = ysz;
1485 opic->data[1] = frame->get_u(); opic->linesize[1] = usz;
1486 opic->data[2] = frame->get_v(); opic->linesize[2] = usz;
1489 opic->data[0] = frame->get_data();
1490 opic->linesize[0] = frame->get_bytes_per_line();
1494 AVPixelFormat ofmt = (AVPixelFormat)op->format;
1495 convert_ctx = sws_getCachedContext(convert_ctx, frame->get_w(), frame->get_h(),
1496 ifmt, op->width, op->height, ofmt, SWS_POINT, NULL, NULL, NULL);
1497 if( !convert_ctx ) {
1498 fprintf(stderr, "FFVideoConvert::convert_frame_picture:"
1499 " sws_getCachedContext() failed\n");
1502 int ret = sws_scale(convert_ctx, opic->data, opic->linesize, 0, frame->get_h(),
1503 op->data, op->linesize);
1505 ff_err(ret, "FFVideoConvert::convert_frame_picture: sws_scale() failed\n");
1511 int FFVideoConvert::convert_pixfmt(VFrame *frame, AVFrame *op)
1513 // try direct transfer
1514 if( !convert_vframe_picture(frame, op) ) return 1;
1515 // use indirect transfer
1516 int cmodel = frame->get_color_model();
1517 int max_bits = BC_CModels::calculate_pixelsize(cmodel) * 8;
1518 max_bits /= BC_CModels::components(cmodel);
1519 AVPixelFormat ofmt = (AVPixelFormat)op->format;
1520 int imodel = pix_fmt_to_color_model(ofmt);
1521 int imodel_is_yuv = BC_CModels::is_yuv(imodel);
1522 int cmodel_is_yuv = BC_CModels::is_yuv(cmodel);
1523 if( imodel < 0 || imodel_is_yuv != cmodel_is_yuv ) {
1524 imodel = cmodel_is_yuv ?
1525 (BC_CModels::has_alpha(cmodel) ?
1527 (max_bits > 8 ? BC_AYUV16161616 : BC_YUV444P)) :
1528 (BC_CModels::has_alpha(cmodel) ?
1529 (max_bits > 8 ? BC_RGBA16161616 : BC_RGBA8888) :
1530 (max_bits > 8 ? BC_RGB161616 : BC_RGB888)) ;
1532 VFrame vframe(frame->get_w(), frame->get_h(), imodel);
1533 vframe.transfer_from(frame);
1534 if( !convert_vframe_picture(&vframe, op) ) return 1;
1538 int FFVideoConvert::transfer_pixfmt(VFrame *frame, AVFrame *ofp)
1540 int ret = convert_pixfmt(frame, ofp);
1542 BC_Hash *hp = frame->get_params();
1543 AVDictionary **dict = &ofp->metadata;
1544 //av_dict_free(dict);
1545 for( int i=0; i<hp->size(); ++i ) {
1546 char *key = hp->get_key(i), *val = hp->get_value(i);
1547 av_dict_set(dict, key, val, 0);
1553 void FFVideoStream::load_markers()
1555 IndexState *index_state = ffmpeg->file_base->asset->index_state;
1556 if( !index_state || idx >= index_state->video_markers.size() ) return;
1557 FFStream::load_markers(*index_state->video_markers[idx], frame_rate);
1560 IndexMarks *FFVideoStream::get_markers()
1562 IndexState *index_state = ffmpeg->file_base->asset->index_state;
1563 if( !index_state || idx >= index_state->video_markers.size() ) return 0;
1564 return !index_state ? 0 : index_state->video_markers[idx];
1568 FFMPEG::FFMPEG(FileBase *file_base)
1571 this->file_base = file_base;
1572 memset(file_format,0,sizeof(file_format));
1573 mux_lock = new Condition(0,"FFMPEG::mux_lock",0);
1574 flow_lock = new Condition(1,"FFStream::flow_lock",0);
1577 decoding = encoding = 0;
1578 has_audio = has_video = 0;
1581 opt_video_filter = 0;
1582 opt_audio_filter = 0;
1584 opt_video_decoder = 0;
1585 opt_audio_decoder = 0;
1587 char option_path[BCTEXTLEN];
1588 set_option_path(option_path, "%s", "ffmpeg.opts");
1589 read_options(option_path, opts);
1594 ff_lock("FFMPEG::~FFMPEG()");
1596 ffaudio.remove_all_objects();
1597 ffvideo.remove_all_objects();
1598 if( fmt_ctx ) avformat_close_input(&fmt_ctx);
1602 av_dict_free(&opts);
1603 delete [] opt_video_filter;
1604 delete [] opt_audio_filter;
1605 delete [] opt_hw_dev;
1608 int FFMPEG::check_sample_rate(AVCodec *codec, int sample_rate)
1610 const int *p = codec->supported_samplerates;
1611 if( !p ) return sample_rate;
1613 if( *p == sample_rate ) return *p;
1619 static inline AVRational std_frame_rate(int i)
1621 static const int m1 = 1001*12, m2 = 1000*12;
1622 static const int freqs[] = {
1623 40*m1, 48*m1, 50*m1, 60*m1, 80*m1,120*m1, 240*m1,
1624 24*m2, 30*m2, 60*m2, 12*m2, 15*m2, 48*m2, 0,
1626 int freq = i<30*12 ? (i+1)*1001 : freqs[i-30*12];
1627 return (AVRational) { freq, 1001*12 };
1630 AVRational FFMPEG::check_frame_rate(AVCodec *codec, double frame_rate)
1632 const AVRational *p = codec->supported_framerates;
1633 AVRational rate, best_rate = (AVRational) { 0, 0 };
1634 double max_err = 1.; int i = 0;
1635 while( ((p ? (rate=*p++) : (rate=std_frame_rate(i++))), rate.num) != 0 ) {
1636 double framerate = (double) rate.num / rate.den;
1637 double err = fabs(frame_rate/framerate - 1.);
1638 if( err >= max_err ) continue;
1642 return max_err < 0.0001 ? best_rate : (AVRational) { 0, 0 };
1645 AVRational FFMPEG::to_sample_aspect_ratio(Asset *asset)
1648 double display_aspect = asset->width / (double)asset->height;
1649 double sample_aspect = display_aspect / asset->aspect_ratio;
1650 int width = 1000000, height = width * sample_aspect + 0.5;
1652 MWindow::create_aspect_ratio(w, h, width, height);
1653 return (AVRational){(int)w, (int)h};
1656 return (AVRational){1, 1};
1660 AVRational FFMPEG::to_time_base(int sample_rate)
1662 return (AVRational){1, sample_rate};
1665 int FFMPEG::get_fmt_score(AVSampleFormat dst_fmt, AVSampleFormat src_fmt)
1668 int dst_planar = av_sample_fmt_is_planar(dst_fmt);
1669 int src_planar = av_sample_fmt_is_planar(src_fmt);
1670 if( dst_planar != src_planar ) ++score;
1671 int dst_bytes = av_get_bytes_per_sample(dst_fmt);
1672 int src_bytes = av_get_bytes_per_sample(src_fmt);
1673 score += (src_bytes > dst_bytes ? 100 : -10) * (src_bytes - dst_bytes);
1674 int src_packed = av_get_packed_sample_fmt(src_fmt);
1675 int dst_packed = av_get_packed_sample_fmt(dst_fmt);
1676 if( dst_packed == AV_SAMPLE_FMT_S32 && src_packed == AV_SAMPLE_FMT_FLT ) score += 20;
1677 if( dst_packed == AV_SAMPLE_FMT_FLT && src_packed == AV_SAMPLE_FMT_S32 ) score += 2;
1681 AVSampleFormat FFMPEG::find_best_sample_fmt_of_list(
1682 const AVSampleFormat *sample_fmts, AVSampleFormat src_fmt)
1684 AVSampleFormat best = AV_SAMPLE_FMT_NONE;
1685 int best_score = get_fmt_score(best, src_fmt);
1686 for( int i=0; sample_fmts[i] >= 0; ++i ) {
1687 AVSampleFormat sample_fmt = sample_fmts[i];
1688 int score = get_fmt_score(sample_fmt, src_fmt);
1689 if( score >= best_score ) continue;
1690 best = sample_fmt; best_score = score;
1696 void FFMPEG::set_option_path(char *path, const char *fmt, ...)
1698 char *ep = path + BCTEXTLEN-1;
1699 strncpy(path, File::get_cindat_path(), ep-path);
1700 strncat(path, "/ffmpeg/", ep-path);
1701 path += strlen(path);
1704 path += vsnprintf(path, ep-path, fmt, ap);
1709 void FFMPEG::get_option_path(char *path, const char *type, const char *spec)
1714 set_option_path(path, "%s/%s", type, spec);
1717 int FFMPEG::get_format(char *format, const char *path, const char *spec)
1719 char option_path[BCTEXTLEN], line[BCTEXTLEN], codec[BCTEXTLEN];
1720 get_option_path(option_path, path, spec);
1721 FILE *fp = fopen(option_path,"r");
1724 if( !fgets(line, sizeof(line), fp) ) ret = 1;
1726 line[sizeof(line)-1] = 0;
1727 ret = scan_option_line(line, format, codec);
1733 int FFMPEG::get_codec(char *codec, const char *path, const char *spec)
1735 char option_path[BCTEXTLEN], line[BCTEXTLEN], format[BCTEXTLEN];
1736 get_option_path(option_path, path, spec);
1737 FILE *fp = fopen(option_path,"r");
1740 if( !fgets(line, sizeof(line), fp) ) ret = 1;
1743 line[sizeof(line)-1] = 0;
1744 ret = scan_option_line(line, format, codec);
1747 char *vp = codec, *ep = vp+BCTEXTLEN-1;
1748 while( vp < ep && *vp && *vp != '|' ) ++vp;
1749 if( *vp == '|' ) --vp;
1750 while( vp > codec && (*vp==' ' || *vp=='\t') ) *vp-- = 0;
1755 int FFMPEG::get_file_format()
1757 char audio_muxer[BCSTRLEN], video_muxer[BCSTRLEN];
1758 char audio_format[BCSTRLEN], video_format[BCSTRLEN];
1759 audio_muxer[0] = audio_format[0] = 0;
1760 video_muxer[0] = video_format[0] = 0;
1761 Asset *asset = file_base->asset;
1762 int ret = asset ? 0 : 1;
1763 if( !ret && asset->audio_data ) {
1764 if( !(ret=get_format(audio_format, "audio", asset->acodec)) ) {
1765 if( get_format(audio_muxer, "format", audio_format) ) {
1766 strcpy(audio_muxer, audio_format);
1767 audio_format[0] = 0;
1771 if( !ret && asset->video_data ) {
1772 if( !(ret=get_format(video_format, "video", asset->vcodec)) ) {
1773 if( get_format(video_muxer, "format", video_format) ) {
1774 strcpy(video_muxer, video_format);
1775 video_format[0] = 0;
1779 if( !ret && !audio_muxer[0] && !video_muxer[0] )
1781 if( !ret && audio_muxer[0] && video_muxer[0] &&
1782 strcmp(audio_muxer, video_muxer) ) ret = -1;
1783 if( !ret && audio_format[0] && video_format[0] &&
1784 strcmp(audio_format, video_format) ) ret = -1;
1786 strcpy(file_format, !audio_format[0] && !video_format[0] ?
1787 (audio_muxer[0] ? audio_muxer : video_muxer) :
1788 (audio_format[0] ? audio_format : video_format));
1792 int FFMPEG::scan_option_line(const char *cp, char *tag, char *val)
1794 while( *cp == ' ' || *cp == '\t' ) ++cp;
1795 const char *bp = cp;
1796 while( *cp && *cp != ' ' && *cp != '\t' && *cp != '=' && *cp != '\n' ) ++cp;
1798 if( !len || len > BCSTRLEN-1 ) return 1;
1799 while( bp < cp ) *tag++ = *bp++;
1801 while( *cp == ' ' || *cp == '\t' ) ++cp;
1802 if( *cp == '=' ) ++cp;
1803 while( *cp == ' ' || *cp == '\t' ) ++cp;
1805 while( *cp && *cp != '\n' ) ++cp;
1807 if( len > BCTEXTLEN-1 ) return 1;
1808 while( bp < cp ) *val++ = *bp++;
1813 int FFMPEG::can_render(const char *fformat, const char *type)
1816 char option_path[BCTEXTLEN];
1817 FFMPEG::set_option_path(option_path, type);
1818 fs.update(option_path);
1819 int total_files = fs.total_files();
1820 for( int i=0; i<total_files; ++i ) {
1821 const char *name = fs.get_entry(i)->get_name();
1822 const char *ext = strrchr(name,'.');
1823 if( !ext ) continue;
1824 if( !strcmp(fformat, ++ext) ) return 1;
1829 int FFMPEG::get_ff_option(const char *nm, const char *options, char *value)
1831 for( const char *cp=options; *cp!=0; ) {
1832 char line[BCTEXTLEN], *bp = line, *ep = bp+sizeof(line)-1;
1833 while( bp < ep && *cp && *cp!='\n' ) *bp++ = *cp++;
1836 if( !line[0] || line[0] == '#' || line[0] == ';' ) continue;
1837 char key[BCSTRLEN], val[BCTEXTLEN];
1838 if( FFMPEG::scan_option_line(line, key, val) ) continue;
1839 if( !strcmp(key, nm) ) {
1840 strncpy(value, val, BCSTRLEN);
1847 void FFMPEG::scan_audio_options(Asset *asset, EDL *edl)
1849 char cin_sample_fmt[BCSTRLEN];
1850 int cin_fmt = AV_SAMPLE_FMT_NONE;
1851 const char *options = asset->ff_audio_options;
1852 if( !get_ff_option("cin_sample_fmt", options, cin_sample_fmt) )
1853 cin_fmt = (int)av_get_sample_fmt(cin_sample_fmt);
1855 char audio_codec[BCSTRLEN]; audio_codec[0] = 0;
1856 AVCodec *av_codec = !FFMPEG::get_codec(audio_codec, "audio", asset->acodec) ?
1857 avcodec_find_encoder_by_name(audio_codec) : 0;
1858 if( av_codec && av_codec->sample_fmts )
1859 cin_fmt = find_best_sample_fmt_of_list(av_codec->sample_fmts, AV_SAMPLE_FMT_FLT);
1861 if( cin_fmt < 0 ) cin_fmt = AV_SAMPLE_FMT_S16;
1862 const char *name = av_get_sample_fmt_name((AVSampleFormat)cin_fmt);
1863 if( !name ) name = _("None");
1864 strcpy(asset->ff_sample_format, name);
1866 char value[BCSTRLEN];
1867 if( !get_ff_option("cin_bitrate", options, value) )
1868 asset->ff_audio_bitrate = atoi(value);
1869 if( !get_ff_option("cin_quality", options, value) )
1870 asset->ff_audio_quality = atoi(value);
1873 void FFMPEG::load_audio_options(Asset *asset, EDL *edl)
1875 char options_path[BCTEXTLEN];
1876 set_option_path(options_path, "audio/%s", asset->acodec);
1877 if( !load_options(options_path,
1878 asset->ff_audio_options,
1879 sizeof(asset->ff_audio_options)) )
1880 scan_audio_options(asset, edl);
1883 void FFMPEG::scan_video_options(Asset *asset, EDL *edl)
1885 char cin_pix_fmt[BCSTRLEN];
1886 int cin_fmt = AV_PIX_FMT_NONE;
1887 const char *options = asset->ff_video_options;
1888 if( !get_ff_option("cin_pix_fmt", options, cin_pix_fmt) )
1889 cin_fmt = (int)av_get_pix_fmt(cin_pix_fmt);
1891 char video_codec[BCSTRLEN]; video_codec[0] = 0;
1892 AVCodec *av_codec = !get_codec(video_codec, "video", asset->vcodec) ?
1893 avcodec_find_encoder_by_name(video_codec) : 0;
1894 if( av_codec && av_codec->pix_fmts ) {
1895 if( 0 && edl ) { // frequently picks a bad answer
1896 int color_model = edl->session->color_model;
1897 int max_bits = BC_CModels::calculate_pixelsize(color_model) * 8;
1898 max_bits /= BC_CModels::components(color_model);
1899 cin_fmt = avcodec_find_best_pix_fmt_of_list(av_codec->pix_fmts,
1900 (BC_CModels::is_yuv(color_model) ?
1901 (max_bits > 8 ? AV_PIX_FMT_AYUV64LE : AV_PIX_FMT_YUV444P) :
1902 (max_bits > 8 ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB24)), 0, 0);
1905 cin_fmt = av_codec->pix_fmts[0];
1908 if( cin_fmt < 0 ) cin_fmt = AV_PIX_FMT_YUV420P;
1909 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get((AVPixelFormat)cin_fmt);
1910 const char *name = desc ? desc->name : _("None");
1911 strcpy(asset->ff_pixel_format, name);
1913 char value[BCSTRLEN];
1914 if( !get_ff_option("cin_bitrate", options, value) )
1915 asset->ff_video_bitrate = atoi(value);
1916 if( !get_ff_option("cin_quality", options, value) )
1917 asset->ff_video_quality = atoi(value);
1920 void FFMPEG::load_video_options(Asset *asset, EDL *edl)
1922 char options_path[BCTEXTLEN];
1923 set_option_path(options_path, "video/%s", asset->vcodec);
1924 if( !load_options(options_path,
1925 asset->ff_video_options,
1926 sizeof(asset->ff_video_options)) )
1927 scan_video_options(asset, edl);
1930 int FFMPEG::load_defaults(const char *path, const char *type,
1931 char *codec, char *codec_options, int len)
1933 char default_file[BCTEXTLEN];
1934 set_option_path(default_file, "%s/%s.dfl", path, type);
1935 FILE *fp = fopen(default_file,"r");
1937 fgets(codec, BCSTRLEN, fp);
1939 while( *cp && *cp!='\n' ) ++cp;
1941 while( len > 0 && fgets(codec_options, len, fp) ) {
1942 int n = strlen(codec_options);
1943 codec_options += n; len -= n;
1946 set_option_path(default_file, "%s/%s", path, codec);
1947 return load_options(default_file, codec_options, len);
1950 void FFMPEG::set_asset_format(Asset *asset, EDL *edl, const char *text)
1952 if( asset->format != FILE_FFMPEG ) return;
1953 if( text != asset->fformat )
1954 strcpy(asset->fformat, text);
1955 if( asset->audio_data && !asset->ff_audio_options[0] ) {
1956 if( !load_defaults("audio", text, asset->acodec,
1957 asset->ff_audio_options, sizeof(asset->ff_audio_options)) )
1958 scan_audio_options(asset, edl);
1960 asset->audio_data = 0;
1962 if( asset->video_data && !asset->ff_video_options[0] ) {
1963 if( !load_defaults("video", text, asset->vcodec,
1964 asset->ff_video_options, sizeof(asset->ff_video_options)) )
1965 scan_video_options(asset, edl);
1967 asset->video_data = 0;
1971 int FFMPEG::get_encoder(const char *options,
1972 char *format, char *codec, char *bsfilter)
1974 FILE *fp = fopen(options,"r");
1976 eprintf(_("options open failed %s\n"),options);
1979 char line[BCTEXTLEN];
1980 if( !fgets(line, sizeof(line), fp) ||
1981 scan_encoder(line, format, codec, bsfilter) )
1982 eprintf(_("format/codec not found %s\n"), options);
1987 int FFMPEG::scan_encoder(const char *line,
1988 char *format, char *codec, char *bsfilter)
1990 format[0] = codec[0] = bsfilter[0] = 0;
1991 if( scan_option_line(line, format, codec) ) return 1;
1993 while( *cp && *cp != '|' ) ++cp;
1994 if( !*cp ) return 0;
1996 do { *bp-- = 0; } while( bp>=codec && (*bp==' ' || *bp == '\t' ) );
1997 while( *++cp && (*cp==' ' || *cp == '\t') );
1999 for( int i=BCTEXTLEN; --i>0 && *cp; ) *bp++ = *cp++;
2004 int FFMPEG::read_options(const char *options, AVDictionary *&opts, int skip)
2006 FILE *fp = fopen(options,"r");
2009 while( !ret && --skip >= 0 ) {
2011 while( ch >= 0 && ch != '\n' ) ch = getc(fp);
2012 if( ch < 0 ) ret = 1;
2015 ret = read_options(fp, options, opts);
2020 int FFMPEG::scan_options(const char *options, AVDictionary *&opts, AVStream *st)
2022 FILE *fp = fmemopen((void *)options,strlen(options),"r");
2024 int ret = read_options(fp, options, opts);
2026 AVDictionaryEntry *tag = av_dict_get(opts, "id", NULL, 0);
2027 if( tag ) st->id = strtol(tag->value,0,0);
2031 FFCodecRemap::FFCodecRemap()
2036 FFCodecRemap::~FFCodecRemap()
2038 delete [] old_codec;
2039 delete [] new_codec;
2042 int FFCodecRemaps::add(const char *val)
2044 char old_codec[BCSTRLEN], new_codec[BCSTRLEN];
2045 if( sscanf(val, " %63[a-zA-z0-9_-] = %63[a-z0-9_-]",
2046 &old_codec[0], &new_codec[0]) != 2 ) return 1;
2047 FFCodecRemap &remap = append();
2048 remap.old_codec = cstrdup(old_codec);
2049 remap.new_codec = cstrdup(new_codec);
2054 int FFCodecRemaps::update(AVCodecID &codec_id, AVCodec *&decoder)
2056 AVCodec *codec = avcodec_find_decoder(codec_id);
2057 if( !codec ) return -1;
2058 const char *name = codec->name;
2059 FFCodecRemaps &map = *this;
2061 while( --k >= 0 && strcmp(map[k].old_codec, name) );
2062 if( k < 0 ) return 1;
2063 const char *new_codec = map[k].new_codec;
2064 codec = avcodec_find_decoder_by_name(new_codec);
2065 if( !codec ) return -1;
2070 int FFMPEG::read_options(FILE *fp, const char *options, AVDictionary *&opts)
2072 int ret = 0, no = 0;
2073 char line[BCTEXTLEN];
2074 while( !ret && fgets(line, sizeof(line), fp) ) {
2075 line[sizeof(line)-1] = 0;
2076 if( line[0] == '#' ) continue;
2077 if( line[0] == '\n' ) continue;
2078 char key[BCSTRLEN], val[BCTEXTLEN];
2079 if( scan_option_line(line, key, val) ) {
2080 eprintf(_("err reading %s: line %d\n"), options, no);
2084 if( !strcmp(key, "duration") )
2085 opt_duration = strtod(val, 0);
2086 else if( !strcmp(key, "video_decoder") )
2087 opt_video_decoder = cstrdup(val);
2088 else if( !strcmp(key, "audio_decoder") )
2089 opt_audio_decoder = cstrdup(val);
2090 else if( !strcmp(key, "remap_video_decoder") )
2091 video_codec_remaps.add(val);
2092 else if( !strcmp(key, "remap_audio_decoder") )
2093 audio_codec_remaps.add(val);
2094 else if( !strcmp(key, "video_filter") )
2095 opt_video_filter = cstrdup(val);
2096 else if( !strcmp(key, "audio_filter") )
2097 opt_audio_filter = cstrdup(val);
2098 else if( !strcmp(key, "cin_hw_dev") )
2099 opt_hw_dev = cstrdup(val);
2100 else if( !strcmp(key, "loglevel") )
2103 av_dict_set(&opts, key, val, 0);
2109 int FFMPEG::load_options(const char *options, AVDictionary *&opts)
2111 char option_path[BCTEXTLEN];
2112 set_option_path(option_path, "%s", options);
2113 return read_options(option_path, opts);
2116 int FFMPEG::load_options(const char *path, char *bfr, int len)
2119 FILE *fp = fopen(path, "r");
2121 fgets(bfr, len, fp); // skip hdr
2122 len = fread(bfr, 1, len-1, fp);
2123 if( len < 0 ) len = 0;
2129 void FFMPEG::set_loglevel(const char *ap)
2131 if( !ap || !*ap ) return;
2136 { "quiet" , AV_LOG_QUIET },
2137 { "panic" , AV_LOG_PANIC },
2138 { "fatal" , AV_LOG_FATAL },
2139 { "error" , AV_LOG_ERROR },
2140 { "warning", AV_LOG_WARNING },
2141 { "info" , AV_LOG_INFO },
2142 { "verbose", AV_LOG_VERBOSE },
2143 { "debug" , AV_LOG_DEBUG },
2145 for( int i=0; i<(int)(sizeof(log_levels)/sizeof(log_levels[0])); ++i ) {
2146 if( !strcmp(log_levels[i].name, ap) ) {
2147 av_log_set_level(log_levels[i].level);
2151 av_log_set_level(atoi(ap));
2154 double FFMPEG::to_secs(int64_t time, AVRational time_base)
2156 double base_time = time == AV_NOPTS_VALUE ? 0 :
2157 av_rescale_q(time, time_base, AV_TIME_BASE_Q);
2158 return base_time / AV_TIME_BASE;
2161 int FFMPEG::info(char *text, int len)
2163 if( len <= 0 ) return 0;
2165 #define report(s...) do { int n = snprintf(cp,len,s); cp += n; len -= n; } while(0)
2167 report("format: %s\n",fmt_ctx->iformat->name);
2168 if( ffvideo.size() > 0 )
2169 report("\n%d video stream%s\n",ffvideo.size(), ffvideo.size()!=1 ? "s" : "");
2170 for( int vidx=0; vidx<ffvideo.size(); ++vidx ) {
2171 FFVideoStream *vid = ffvideo[vidx];
2172 AVStream *st = vid->st;
2173 AVCodecID codec_id = st->codecpar->codec_id;
2174 report(_("vid%d (%d), id 0x%06x:\n"), vid->idx, vid->fidx, codec_id);
2175 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
2176 report(" video%d %s", vidx+1, desc ? desc->name : " (unkn)");
2177 report(" %dx%d %5.2f", vid->width, vid->height, vid->frame_rate);
2178 AVPixelFormat pix_fmt = (AVPixelFormat)st->codecpar->format;
2179 const char *pfn = av_get_pix_fmt_name(pix_fmt);
2180 report(" pix %s\n", pfn ? pfn : "(unkn)");
2181 double secs = to_secs(st->duration, st->time_base);
2182 int64_t length = secs * vid->frame_rate + 0.5;
2183 double ofs = to_secs((vid->nudge - st->start_time), st->time_base);
2184 int64_t nudge = ofs * vid->frame_rate;
2185 int ch = nudge >= 0 ? '+' : (nudge=-nudge, '-');
2186 report(" %jd%c%jd frms %0.2f secs", length,ch,nudge, secs);
2187 int hrs = secs/3600; secs -= hrs*3600;
2188 int mins = secs/60; secs -= mins*60;
2189 report(" %d:%02d:%05.2f\n", hrs, mins, secs);
2191 if( ffaudio.size() > 0 )
2192 report("\n%d audio stream%s\n",ffaudio.size(), ffaudio.size()!=1 ? "s" : "");
2193 for( int aidx=0; aidx<ffaudio.size(); ++aidx ) {
2194 FFAudioStream *aud = ffaudio[aidx];
2195 AVStream *st = aud->st;
2196 AVCodecID codec_id = st->codecpar->codec_id;
2197 report(_("aud%d (%d), id 0x%06x:\n"), aud->idx, aud->fidx, codec_id);
2198 const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
2199 int nch = aud->channels, ch0 = aud->channel0+1;
2200 report(" audio%d-%d %s", ch0, ch0+nch-1, desc ? desc->name : " (unkn)");
2201 AVSampleFormat sample_fmt = (AVSampleFormat)st->codecpar->format;
2202 const char *fmt = av_get_sample_fmt_name(sample_fmt);
2203 report(" %s %d", fmt, aud->sample_rate);
2204 int sample_bits = av_get_bits_per_sample(codec_id);
2205 report(" %dbits\n", sample_bits);
2206 double secs = to_secs(st->duration, st->time_base);
2207 int64_t length = secs * aud->sample_rate + 0.5;
2208 double ofs = to_secs((aud->nudge - st->start_time), st->time_base);
2209 int64_t nudge = ofs * aud->sample_rate;
2210 int ch = nudge >= 0 ? '+' : (nudge=-nudge, '-');
2211 report(" %jd%c%jd smpl %0.2f secs", length,ch,nudge, secs);
2212 int hrs = secs/3600; secs -= hrs*3600;
2213 int mins = secs/60; secs -= mins*60;
2214 report(" %d:%02d:%05.2f\n", hrs, mins, secs);
2216 if( fmt_ctx->nb_programs > 0 )
2217 report("\n%d program%s\n",fmt_ctx->nb_programs, fmt_ctx->nb_programs!=1 ? "s" : "");
2218 for( int i=0; i<(int)fmt_ctx->nb_programs; ++i ) {
2219 report("program %d", i+1);
2220 AVProgram *pgrm = fmt_ctx->programs[i];
2221 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
2222 int idx = pgrm->stream_index[j];
2223 int vidx = ffvideo.size();
2224 while( --vidx>=0 && ffvideo[vidx]->fidx != idx );
2226 report(", vid%d", vidx);
2229 int aidx = ffaudio.size();
2230 while( --aidx>=0 && ffaudio[aidx]->fidx != idx );
2232 report(", aud%d", aidx);
2235 report(", (%d)", pgrm->stream_index[j]);
2240 AVDictionaryEntry *tag = 0;
2241 while ((tag = av_dict_get(fmt_ctx->metadata, "", tag, AV_DICT_IGNORE_SUFFIX)))
2242 report("%s=%s\n", tag->key, tag->value);
2251 int FFMPEG::init_decoder(const char *filename)
2253 ff_lock("FFMPEG::init_decoder");
2255 char file_opts[BCTEXTLEN];
2256 strcpy(file_opts, filename);
2257 char *bp = strrchr(file_opts, '/');
2258 if( !bp ) bp = file_opts;
2259 char *sp = strrchr(bp, '.');
2260 if( !sp ) sp = bp + strlen(bp);
2262 AVInputFormat *ifmt = 0;
2264 strcpy(sp, ".opts");
2265 fp = fopen(file_opts, "r");
2268 read_options(fp, file_opts, opts);
2270 AVDictionaryEntry *tag;
2271 if( (tag=av_dict_get(opts, "format", NULL, 0)) != 0 ) {
2272 ifmt = av_find_input_format(tag->value);
2276 load_options("decode.opts", opts);
2277 AVDictionary *fopts = 0;
2278 av_dict_copy(&fopts, opts, 0);
2279 int ret = avformat_open_input(&fmt_ctx, filename, ifmt, &fopts);
2280 av_dict_free(&fopts);
2282 ret = avformat_find_stream_info(fmt_ctx, NULL);
2287 return !ret ? 0 : 1;
2290 int FFMPEG::open_decoder()
2293 if( stat(fmt_ctx->url, &st) < 0 ) {
2294 eprintf(_("can't stat file: %s\n"), fmt_ctx->url);
2298 int64_t file_bits = 8 * st.st_size;
2299 if( !fmt_ctx->bit_rate && opt_duration > 0 )
2300 fmt_ctx->bit_rate = file_bits / opt_duration;
2303 if( fmt_ctx->bit_rate > 0 ) {
2304 for( int i=0; i<(int)fmt_ctx->nb_streams; ++i ) {
2305 AVStream *st = fmt_ctx->streams[i];
2306 if( st->duration != AV_NOPTS_VALUE ) continue;
2307 if( st->time_base.num > INT64_MAX / fmt_ctx->bit_rate ) continue;
2308 st->duration = av_rescale(file_bits, st->time_base.den,
2309 fmt_ctx->bit_rate * (int64_t) st->time_base.num);
2313 if( estimated && !(fflags & FF_ESTM_TIMES) ) {
2314 fflags |= FF_ESTM_TIMES;
2315 printf("FFMPEG::open_decoder: some stream times estimated: %s\n",
2319 ff_lock("FFMPEG::open_decoder");
2320 int ret = 0, bad_time = 0;
2321 for( int i=0; !ret && i<(int)fmt_ctx->nb_streams; ++i ) {
2322 AVStream *st = fmt_ctx->streams[i];
2323 if( st->duration == AV_NOPTS_VALUE ) bad_time = 1;
2324 AVCodecParameters *avpar = st->codecpar;
2325 const AVCodecDescriptor *codec_desc = avcodec_descriptor_get(avpar->codec_id);
2326 if( !codec_desc ) continue;
2327 switch( avpar->codec_type ) {
2328 case AVMEDIA_TYPE_VIDEO: {
2329 if( avpar->width < 1 ) continue;
2330 if( avpar->height < 1 ) continue;
2331 AVRational framerate = av_guess_frame_rate(fmt_ctx, st, 0);
2332 if( framerate.num < 1 ) continue;
2334 int vidx = ffvideo.size();
2335 FFVideoStream *vid = new FFVideoStream(this, st, vidx, i);
2336 vstrm_index.append(ffidx(vidx, 0));
2337 ffvideo.append(vid);
2338 vid->width = avpar->width;
2339 vid->height = avpar->height;
2340 vid->frame_rate = !framerate.den ? 0 : (double)framerate.num / framerate.den;
2341 double secs = to_secs(st->duration, st->time_base);
2342 vid->length = secs * vid->frame_rate;
2343 vid->aspect_ratio = (double)st->sample_aspect_ratio.num / st->sample_aspect_ratio.den;
2344 vid->nudge = st->start_time;
2346 if( opt_video_filter )
2347 ret = vid->create_filter(opt_video_filter, avpar);
2349 case AVMEDIA_TYPE_AUDIO: {
2350 if( avpar->channels < 1 ) continue;
2351 if( avpar->sample_rate < 1 ) continue;
2353 int aidx = ffaudio.size();
2354 FFAudioStream *aud = new FFAudioStream(this, st, aidx, i);
2355 ffaudio.append(aud);
2356 aud->channel0 = astrm_index.size();
2357 aud->channels = avpar->channels;
2358 for( int ch=0; ch<aud->channels; ++ch )
2359 astrm_index.append(ffidx(aidx, ch));
2360 aud->sample_rate = avpar->sample_rate;
2361 double secs = to_secs(st->duration, st->time_base);
2362 aud->length = secs * aud->sample_rate;
2363 aud->init_swr(aud->channels, avpar->format, aud->sample_rate);
2364 aud->nudge = st->start_time;
2366 if( opt_audio_filter )
2367 ret = aud->create_filter(opt_audio_filter, avpar);
2372 if( bad_time && !(fflags & FF_BAD_TIMES) ) {
2373 fflags |= FF_BAD_TIMES;
2374 printf("FFMPEG::open_decoder: some stream have bad times: %s\n",
2378 return ret < 0 ? -1 : 0;
2382 int FFMPEG::init_encoder(const char *filename)
2384 // try access first for named pipes
2385 int ret = access(filename, W_OK);
2387 int fd = ::open(filename,O_WRONLY);
2388 if( fd < 0 ) fd = open(filename,O_WRONLY+O_CREAT,0666);
2389 if( fd >= 0 ) { close(fd); ret = 0; }
2392 eprintf(_("bad file path: %s\n"), filename);
2395 ret = get_file_format();
2397 eprintf(_("bad file format: %s\n"), filename);
2401 eprintf(_("mismatch audio/video file format: %s\n"), filename);
2404 ff_lock("FFMPEG::init_encoder");
2406 char format[BCSTRLEN];
2407 if( get_format(format, "format", file_format) )
2408 strcpy(format, file_format);
2409 avformat_alloc_output_context2(&fmt_ctx, 0, format, filename);
2411 eprintf(_("failed: %s\n"), filename);
2416 load_options("encode.opts", opts);
2422 int FFMPEG::open_encoder(const char *type, const char *spec)
2425 Asset *asset = file_base->asset;
2426 char *filename = asset->path;
2427 AVDictionary *sopts = 0;
2428 av_dict_copy(&sopts, opts, 0);
2429 char option_path[BCTEXTLEN];
2430 set_option_path(option_path, "%s/%s.opts", type, type);
2431 read_options(option_path, sopts);
2432 get_option_path(option_path, type, spec);
2433 char format_name[BCSTRLEN], codec_name[BCTEXTLEN], bsfilter[BCTEXTLEN];
2434 if( get_encoder(option_path, format_name, codec_name, bsfilter) ) {
2435 eprintf(_("get_encoder failed %s:%s\n"), option_path, filename);
2440 if( !strcmp(codec_name, CODEC_TAG_DVSD) ) strcpy(codec_name, "dv");
2442 else if( !strcmp(codec_name, CODEC_TAG_MJPEG) ) strcpy(codec_name, "mjpeg");
2443 else if( !strcmp(codec_name, CODEC_TAG_JPEG) ) strcpy(codec_name, "jpeg");
2446 ff_lock("FFMPEG::open_encoder");
2449 AVCodecContext *ctx = 0;
2451 const AVCodecDescriptor *codec_desc = 0;
2452 AVCodec *codec = avcodec_find_encoder_by_name(codec_name);
2454 eprintf(_("cant find codec %s:%s\n"), codec_name, filename);
2458 codec_desc = avcodec_descriptor_get(codec->id);
2460 eprintf(_("unknown codec %s:%s\n"), codec_name, filename);
2465 st = avformat_new_stream(fmt_ctx, 0);
2467 eprintf(_("cant create stream %s:%s\n"), codec_name, filename);
2472 switch( codec_desc->type ) {
2473 case AVMEDIA_TYPE_AUDIO: {
2475 eprintf(_("duplicate audio %s:%s\n"), codec_name, filename);
2479 if( scan_options(asset->ff_audio_options, sopts, st) ) {
2480 eprintf(_("bad audio options %s:%s\n"), codec_name, filename);
2485 ctx = avcodec_alloc_context3(codec);
2486 if( asset->ff_audio_bitrate > 0 ) {
2487 ctx->bit_rate = asset->ff_audio_bitrate;
2489 sprintf(arg, "%d", asset->ff_audio_bitrate);
2490 av_dict_set(&sopts, "b", arg, 0);
2492 else if( asset->ff_audio_quality >= 0 ) {
2493 ctx->global_quality = asset->ff_audio_quality * FF_QP2LAMBDA;
2494 ctx->qmin = ctx->qmax = asset->ff_audio_quality;
2495 ctx->mb_lmin = ctx->qmin * FF_QP2LAMBDA;
2496 ctx->mb_lmax = ctx->qmax * FF_QP2LAMBDA;
2497 ctx->flags |= AV_CODEC_FLAG_QSCALE;
2499 av_dict_set(&sopts, "flags", "+qscale", 0);
2500 sprintf(arg, "%d", asset->ff_audio_quality);
2501 av_dict_set(&sopts, "qscale", arg, 0);
2502 sprintf(arg, "%d", ctx->global_quality);
2503 av_dict_set(&sopts, "global_quality", arg, 0);
2505 int aidx = ffaudio.size();
2506 int fidx = aidx + ffvideo.size();
2507 FFAudioStream *aud = new FFAudioStream(this, st, aidx, fidx);
2508 aud->avctx = ctx; ffaudio.append(aud); fst = aud;
2509 aud->sample_rate = asset->sample_rate;
2510 ctx->channels = aud->channels = asset->channels;
2511 for( int ch=0; ch<aud->channels; ++ch )
2512 astrm_index.append(ffidx(aidx, ch));
2513 ctx->channel_layout = av_get_default_channel_layout(ctx->channels);
2514 ctx->sample_rate = check_sample_rate(codec, asset->sample_rate);
2515 if( !ctx->sample_rate ) {
2516 eprintf(_("check_sample_rate failed %s\n"), filename);
2520 ctx->time_base = st->time_base = (AVRational){1, aud->sample_rate};
2521 AVSampleFormat sample_fmt = av_get_sample_fmt(asset->ff_sample_format);
2522 if( sample_fmt == AV_SAMPLE_FMT_NONE )
2523 sample_fmt = codec->sample_fmts ? codec->sample_fmts[0] : AV_SAMPLE_FMT_S16;
2524 ctx->sample_fmt = sample_fmt;
2525 uint64_t layout = av_get_default_channel_layout(ctx->channels);
2526 aud->resample_context = swr_alloc_set_opts(NULL,
2527 layout, ctx->sample_fmt, aud->sample_rate,
2528 layout, AV_SAMPLE_FMT_FLT, ctx->sample_rate,
2530 swr_init(aud->resample_context);
2533 case AVMEDIA_TYPE_VIDEO: {
2535 eprintf(_("duplicate video %s:%s\n"), codec_name, filename);
2539 if( scan_options(asset->ff_video_options, sopts, st) ) {
2540 eprintf(_("bad video options %s:%s\n"), codec_name, filename);
2545 ctx = avcodec_alloc_context3(codec);
2546 if( asset->ff_video_bitrate > 0 ) {
2547 ctx->bit_rate = asset->ff_video_bitrate;
2549 sprintf(arg, "%d", asset->ff_video_bitrate);
2550 av_dict_set(&sopts, "b", arg, 0);
2552 else if( asset->ff_video_quality >= 0 ) {
2553 ctx->global_quality = asset->ff_video_quality * FF_QP2LAMBDA;
2554 ctx->qmin = ctx->qmax = asset->ff_video_quality;
2555 ctx->mb_lmin = ctx->qmin * FF_QP2LAMBDA;
2556 ctx->mb_lmax = ctx->qmax * FF_QP2LAMBDA;
2557 ctx->flags |= AV_CODEC_FLAG_QSCALE;
2559 av_dict_set(&sopts, "flags", "+qscale", 0);
2560 sprintf(arg, "%d", asset->ff_video_quality);
2561 av_dict_set(&sopts, "qscale", arg, 0);
2562 sprintf(arg, "%d", ctx->global_quality);
2563 av_dict_set(&sopts, "global_quality", arg, 0);
2565 int vidx = ffvideo.size();
2566 int fidx = vidx + ffaudio.size();
2567 FFVideoStream *vid = new FFVideoStream(this, st, vidx, fidx);
2568 vstrm_index.append(ffidx(vidx, 0));
2569 vid->avctx = ctx; ffvideo.append(vid); fst = vid;
2570 vid->width = asset->width;
2571 vid->height = asset->height;
2572 vid->frame_rate = asset->frame_rate;
2574 AVPixelFormat pix_fmt = av_get_pix_fmt(asset->ff_pixel_format);
2575 if( opt_hw_dev != 0 ) {
2576 AVHWDeviceType hw_type = vid->encode_hw_activate(opt_hw_dev);
2578 case AV_HWDEVICE_TYPE_VAAPI:
2579 pix_fmt = AV_PIX_FMT_VAAPI;
2581 case AV_HWDEVICE_TYPE_NONE:
2585 if( pix_fmt == AV_PIX_FMT_NONE )
2586 pix_fmt = codec->pix_fmts ? codec->pix_fmts[0] : AV_PIX_FMT_YUV420P;
2587 ctx->pix_fmt = pix_fmt;
2589 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
2590 int mask_w = (1<<desc->log2_chroma_w)-1;
2591 ctx->width = (vid->width+mask_w) & ~mask_w;
2592 int mask_h = (1<<desc->log2_chroma_h)-1;
2593 ctx->height = (vid->height+mask_h) & ~mask_h;
2594 ctx->sample_aspect_ratio = to_sample_aspect_ratio(asset);
2595 AVRational frame_rate = check_frame_rate(codec, vid->frame_rate);
2596 if( !frame_rate.num || !frame_rate.den ) {
2597 eprintf(_("check_frame_rate failed %s\n"), filename);
2601 av_reduce(&frame_rate.num, &frame_rate.den,
2602 frame_rate.num, frame_rate.den, INT_MAX);
2603 ctx->framerate = (AVRational) { frame_rate.num, frame_rate.den };
2604 ctx->time_base = (AVRational) { frame_rate.den, frame_rate.num };
2605 st->avg_frame_rate = frame_rate;
2606 st->time_base = ctx->time_base;
2608 vid->interlaced = asset->interlace_mode == ILACE_MODE_TOP_FIRST ||
2609 asset->interlace_mode == ILACE_MODE_BOTTOM_FIRST ? 1 : 0;
2610 vid->top_field_first = asset->interlace_mode == ILACE_MODE_TOP_FIRST ? 1 : 0;
2613 eprintf(_("not audio/video, %s:%s\n"), codec_name, filename);
2618 AVDictionaryEntry *tag;
2619 if( (tag=av_dict_get(sopts, "cin_stats_filename", NULL, 0)) != 0 ) {
2620 char suffix[BCSTRLEN]; sprintf(suffix,"-%d.log",fst->fidx);
2621 fst->stats_filename = cstrcat(2, tag->value, suffix);
2623 if( (tag=av_dict_get(sopts, "flags", NULL, 0)) != 0 ) {
2624 int pass = fst->pass;
2625 char *cp = tag->value;
2627 int ch = *cp++, pfx = ch=='-' ? -1 : ch=='+' ? 1 : 0;
2628 if( !isalnum(!pfx ? ch : (ch=*cp++)) ) continue;
2629 char id[BCSTRLEN], *bp = id, *ep = bp+sizeof(id)-1;
2630 for( *bp++=ch; isalnum(ch=*cp); ++cp )
2631 if( bp < ep ) *bp++ = ch;
2633 if( !strcmp(id, "pass1") ) {
2634 pass = pfx<0 ? (pass&~1) : pfx>0 ? (pass|1) : 1;
2636 else if( !strcmp(id, "pass2") ) {
2637 pass = pfx<0 ? (pass&~2) : pfx>0 ? (pass|2) : 2;
2640 if( (fst->pass=pass) ) {
2641 if( pass & 1 ) ctx->flags |= AV_CODEC_FLAG_PASS1;
2642 if( pass & 2 ) ctx->flags |= AV_CODEC_FLAG_PASS2;
2648 if( fmt_ctx->oformat->flags & AVFMT_GLOBALHEADER )
2649 ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
2650 if( fst->stats_filename && (ret=fst->init_stats_file()) )
2651 eprintf(_("error: stats file = %s\n"), fst->stats_filename);
2654 av_dict_set(&sopts, "cin_bitrate", 0, 0);
2655 av_dict_set(&sopts, "cin_quality", 0, 0);
2657 if( !av_dict_get(sopts, "threads", NULL, 0) )
2658 ctx->thread_count = ff_cpus();
2659 ret = avcodec_open2(ctx, codec, &sopts);
2661 ret = avcodec_parameters_from_context(st->codecpar, ctx);
2663 fprintf(stderr, "Could not copy the stream parameters\n");
2666 _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
2667 ret = avcodec_copy_context(st->codec, ctx);
2668 _Pragma("GCC diagnostic warning \"-Wdeprecated-declarations\"")
2670 fprintf(stderr, "Could not copy the stream context\n");
2673 ff_err(ret,"FFMPEG::open_encoder");
2674 eprintf(_("open failed %s:%s\n"), codec_name, filename);
2680 if( !ret && fst && bsfilter[0] ) {
2681 ret = av_bsf_list_parse_str(bsfilter, &fst->bsfc);
2683 ff_err(ret,"FFMPEG::open_encoder");
2684 eprintf(_("bitstream filter failed %s:\n%s\n"), filename, bsfilter);
2695 av_dict_free(&sopts);
2699 int FFMPEG::close_encoder()
2702 if( encoding > 0 ) {
2703 av_write_trailer(fmt_ctx);
2704 if( !(fmt_ctx->flags & AVFMT_NOFILE) )
2705 avio_closep(&fmt_ctx->pb);
2711 int FFMPEG::decode_activate()
2713 if( decoding < 0 ) {
2715 for( int vidx=0; vidx<ffvideo.size(); ++vidx )
2716 ffvideo[vidx]->nudge = AV_NOPTS_VALUE;
2717 for( int aidx=0; aidx<ffaudio.size(); ++aidx )
2718 ffaudio[aidx]->nudge = AV_NOPTS_VALUE;
2719 // set nudges for each program stream set
2720 const int64_t min_nudge = INT64_MIN+1;
2721 int npgrms = fmt_ctx->nb_programs;
2722 for( int i=0; i<npgrms; ++i ) {
2723 AVProgram *pgrm = fmt_ctx->programs[i];
2724 // first start time video stream
2725 int64_t vstart_time = min_nudge, astart_time = min_nudge;
2726 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
2727 int fidx = pgrm->stream_index[j];
2728 AVStream *st = fmt_ctx->streams[fidx];
2729 AVCodecParameters *avpar = st->codecpar;
2730 if( avpar->codec_type == AVMEDIA_TYPE_VIDEO ) {
2731 if( st->start_time == AV_NOPTS_VALUE ) continue;
2732 if( vstart_time < st->start_time )
2733 vstart_time = st->start_time;
2736 if( avpar->codec_type == AVMEDIA_TYPE_AUDIO ) {
2737 if( st->start_time == AV_NOPTS_VALUE ) continue;
2738 if( astart_time < st->start_time )
2739 astart_time = st->start_time;
2743 //since frame rate is much more grainy than sample rate, it is better to
2744 // align using video, so that total absolute error is minimized.
2745 int64_t nudge = vstart_time > min_nudge ? vstart_time :
2746 astart_time > min_nudge ? astart_time : AV_NOPTS_VALUE;
2747 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
2748 int fidx = pgrm->stream_index[j];
2749 AVStream *st = fmt_ctx->streams[fidx];
2750 AVCodecParameters *avpar = st->codecpar;
2751 if( avpar->codec_type == AVMEDIA_TYPE_VIDEO ) {
2752 for( int k=0; k<ffvideo.size(); ++k ) {
2753 if( ffvideo[k]->fidx != fidx ) continue;
2754 ffvideo[k]->nudge = nudge;
2758 if( avpar->codec_type == AVMEDIA_TYPE_AUDIO ) {
2759 for( int k=0; k<ffaudio.size(); ++k ) {
2760 if( ffaudio[k]->fidx != fidx ) continue;
2761 ffaudio[k]->nudge = nudge;
2767 // set nudges for any streams not yet set
2768 int64_t vstart_time = min_nudge, astart_time = min_nudge;
2769 int nstreams = fmt_ctx->nb_streams;
2770 for( int i=0; i<nstreams; ++i ) {
2771 AVStream *st = fmt_ctx->streams[i];
2772 AVCodecParameters *avpar = st->codecpar;
2773 switch( avpar->codec_type ) {
2774 case AVMEDIA_TYPE_VIDEO: {
2775 if( st->start_time == AV_NOPTS_VALUE ) continue;
2776 int vidx = ffvideo.size();
2777 while( --vidx >= 0 && ffvideo[vidx]->fidx != i );
2778 if( vidx < 0 ) continue;
2779 if( ffvideo[vidx]->nudge != AV_NOPTS_VALUE ) continue;
2780 if( vstart_time < st->start_time )
2781 vstart_time = st->start_time;
2783 case AVMEDIA_TYPE_AUDIO: {
2784 if( st->start_time == AV_NOPTS_VALUE ) continue;
2785 int aidx = ffaudio.size();
2786 while( --aidx >= 0 && ffaudio[aidx]->fidx != i );
2787 if( aidx < 0 ) continue;
2788 if( ffaudio[aidx]->frame_sz < avpar->frame_size )
2789 ffaudio[aidx]->frame_sz = avpar->frame_size;
2790 if( ffaudio[aidx]->nudge != AV_NOPTS_VALUE ) continue;
2791 if( astart_time < st->start_time )
2792 astart_time = st->start_time;
2797 int64_t nudge = vstart_time > min_nudge ? vstart_time :
2798 astart_time > min_nudge ? astart_time : 0;
2799 for( int vidx=0; vidx<ffvideo.size(); ++vidx ) {
2800 if( ffvideo[vidx]->nudge == AV_NOPTS_VALUE )
2801 ffvideo[vidx]->nudge = nudge;
2803 for( int aidx=0; aidx<ffaudio.size(); ++aidx ) {
2804 if( ffaudio[aidx]->nudge == AV_NOPTS_VALUE )
2805 ffaudio[aidx]->nudge = nudge;
2812 int FFMPEG::encode_activate()
2815 if( encoding < 0 ) {
2817 if( !(fmt_ctx->flags & AVFMT_NOFILE) &&
2818 (ret=avio_open(&fmt_ctx->pb, fmt_ctx->url, AVIO_FLAG_WRITE)) < 0 ) {
2819 ff_err(ret, "FFMPEG::encode_activate: err opening : %s\n",
2825 AVProgram *prog = av_new_program(fmt_ctx, prog_id);
2826 for( int i=0; i< ffvideo.size(); ++i )
2827 av_program_add_stream_index(fmt_ctx, prog_id, ffvideo[i]->fidx);
2828 for( int i=0; i< ffaudio.size(); ++i )
2829 av_program_add_stream_index(fmt_ctx, prog_id, ffaudio[i]->fidx);
2830 int pi = fmt_ctx->nb_programs;
2831 while( --pi >= 0 && fmt_ctx->programs[pi]->id != prog_id );
2832 AVDictionary **meta = &prog->metadata;
2833 av_dict_set(meta, "service_provider", "cin5", 0);
2834 const char *path = fmt_ctx->url, *bp = strrchr(path,'/');
2835 if( bp ) path = bp + 1;
2836 av_dict_set(meta, "title", path, 0);
2838 if( ffaudio.size() ) {
2839 const char *ep = getenv("CIN_AUDIO_LANG"), *lp = 0;
2840 if( !ep && (lp=getenv("LANG")) ) { // some are guesses
2841 static struct { const char lc[3], lng[4]; } lcode[] = {
2842 { "en", "eng" }, { "de", "ger" }, { "es", "spa" },
2843 { "eu", "bas" }, { "fr", "fre" }, { "el", "gre" },
2844 { "hi", "hin" }, { "it", "ita" }, { "ja", "jap" },
2845 { "ko", "kor" }, { "du", "dut" }, { "pl", "pol" },
2846 { "pt", "por" }, { "ru", "rus" }, { "sl", "slv" },
2847 { "uk", "ukr" }, { "vi", "vie" }, { "zh", "chi" },
2849 for( int i=sizeof(lcode)/sizeof(lcode[0]); --i>=0 && !ep; )
2850 if( !strncmp(lcode[i].lc,lp,2) ) ep = lcode[i].lng;
2852 if( !ep ) ep = "und";
2854 strncpy(lang,ep,3); lang[3] = 0;
2855 AVStream *st = ffaudio[0]->st;
2856 av_dict_set(&st->metadata,"language",lang,0);
2859 AVDictionary *fopts = 0;
2860 char option_path[BCTEXTLEN];
2861 set_option_path(option_path, "format/%s", file_format);
2862 read_options(option_path, fopts, 1);
2863 ret = avformat_write_header(fmt_ctx, &fopts);
2865 ff_err(ret, "FFMPEG::encode_activate: write header failed %s\n",
2869 av_dict_free(&fopts);
2876 int FFMPEG::audio_seek(int stream, int64_t pos)
2878 int aidx = astrm_index[stream].st_idx;
2879 FFAudioStream *aud = ffaudio[aidx];
2880 aud->audio_seek(pos);
2884 int FFMPEG::video_seek(int stream, int64_t pos)
2886 int vidx = vstrm_index[stream].st_idx;
2887 FFVideoStream *vid = ffvideo[vidx];
2888 vid->video_seek(pos);
2893 int FFMPEG::decode(int chn, int64_t pos, double *samples, int len)
2895 if( !has_audio || chn >= astrm_index.size() ) return -1;
2896 int aidx = astrm_index[chn].st_idx;
2897 FFAudioStream *aud = ffaudio[aidx];
2898 if( aud->load(pos, len) < len ) return -1;
2899 int ch = astrm_index[chn].st_ch;
2900 int ret = aud->read(samples,len,ch);
2904 int FFMPEG::decode(int layer, int64_t pos, VFrame *vframe)
2906 if( !has_video || layer >= vstrm_index.size() ) return -1;
2907 int vidx = vstrm_index[layer].st_idx;
2908 FFVideoStream *vid = ffvideo[vidx];
2909 return vid->load(vframe, pos);
2913 int FFMPEG::encode(int stream, double **samples, int len)
2915 FFAudioStream *aud = ffaudio[stream];
2916 return aud->encode(samples, len);
2920 int FFMPEG::encode(int stream, VFrame *frame)
2922 FFVideoStream *vid = ffvideo[stream];
2923 return vid->encode(frame);
2926 void FFMPEG::start_muxer()
2934 void FFMPEG::stop_muxer()
2943 void FFMPEG::flow_off()
2946 flow_lock->lock("FFMPEG::flow_off");
2950 void FFMPEG::flow_on()
2954 flow_lock->unlock();
2957 void FFMPEG::flow_ctl()
2960 flow_lock->lock("FFMPEG::flow_ctl");
2961 flow_lock->unlock();
2965 int FFMPEG::mux_audio(FFrame *frm)
2967 FFStream *fst = frm->fst;
2968 AVCodecContext *ctx = fst->avctx;
2969 AVFrame *frame = *frm;
2970 AVRational tick_rate = {1, ctx->sample_rate};
2971 frame->pts = av_rescale_q(frm->position, tick_rate, ctx->time_base);
2972 int ret = fst->encode_frame(frame);
2974 ff_err(ret, "FFMPEG::mux_audio");
2975 return ret >= 0 ? 0 : 1;
2978 int FFMPEG::mux_video(FFrame *frm)
2980 FFStream *fst = frm->fst;
2981 AVFrame *frame = *frm;
2982 frame->pts = frm->position;
2983 int ret = fst->encode_frame(frame);
2985 ff_err(ret, "FFMPEG::mux_video");
2986 return ret >= 0 ? 0 : 1;
2992 double atm = -1, vtm = -1;
2993 FFrame *afrm = 0, *vfrm = 0;
2995 for( int i=0; i<ffaudio.size(); ++i ) { // earliest audio
2996 FFStream *fst = ffaudio[i];
2997 if( fst->frm_count < 3 ) { demand = 1; flow_on(); }
2998 FFrame *frm = fst->frms.first;
2999 if( !frm ) { if( !done ) return; continue; }
3000 double tm = to_secs(frm->position, fst->avctx->time_base);
3001 if( atm < 0 || tm < atm ) { atm = tm; afrm = frm; }
3003 for( int i=0; i<ffvideo.size(); ++i ) { // earliest video
3004 FFStream *fst = ffvideo[i];
3005 if( fst->frm_count < 2 ) { demand = 1; flow_on(); }
3006 FFrame *frm = fst->frms.first;
3007 if( !frm ) { if( !done ) return; continue; }
3008 double tm = to_secs(frm->position, fst->avctx->time_base);
3009 if( vtm < 0 || tm < vtm ) { vtm = tm; vfrm = frm; }
3011 if( !demand ) flow_off();
3012 if( !afrm && !vfrm ) break;
3013 int v = !afrm ? -1 : !vfrm ? 1 : av_compare_ts(
3014 vfrm->position, vfrm->fst->avctx->time_base,
3015 afrm->position, afrm->fst->avctx->time_base);
3016 FFrame *frm = v <= 0 ? vfrm : afrm;
3017 if( frm == afrm ) mux_audio(frm);
3018 if( frm == vfrm ) mux_video(frm);
3027 mux_lock->lock("FFMPEG::run");
3030 for( int i=0; i<ffaudio.size(); ++i )
3031 ffaudio[i]->drain();
3032 for( int i=0; i<ffvideo.size(); ++i )
3033 ffvideo[i]->drain();
3035 for( int i=0; i<ffaudio.size(); ++i )
3036 ffaudio[i]->flush();
3037 for( int i=0; i<ffvideo.size(); ++i )
3038 ffvideo[i]->flush();
3042 int FFMPEG::ff_total_audio_channels()
3044 return astrm_index.size();
3047 int FFMPEG::ff_total_astreams()
3049 return ffaudio.size();
3052 int FFMPEG::ff_audio_channels(int stream)
3054 return ffaudio[stream]->channels;
3057 int FFMPEG::ff_sample_rate(int stream)
3059 return ffaudio[stream]->sample_rate;
3062 const char* FFMPEG::ff_audio_format(int stream)
3064 AVStream *st = ffaudio[stream]->st;
3065 AVCodecID id = st->codecpar->codec_id;
3066 const AVCodecDescriptor *desc = avcodec_descriptor_get(id);
3067 return desc ? desc->name : _("Unknown");
3070 int FFMPEG::ff_audio_pid(int stream)
3072 return ffaudio[stream]->st->id;
3075 int64_t FFMPEG::ff_audio_samples(int stream)
3077 return ffaudio[stream]->length;
3080 // find audio astream/channels with this program,
3081 // or all program audio channels (astream=-1)
3082 int FFMPEG::ff_audio_for_video(int vstream, int astream, int64_t &channel_mask)
3086 int vidx = ffvideo[vstream]->fidx;
3087 // find first program with this video stream
3088 for( int i=0; pidx<0 && i<(int)fmt_ctx->nb_programs; ++i ) {
3089 AVProgram *pgrm = fmt_ctx->programs[i];
3090 for( int j=0; pidx<0 && j<(int)pgrm->nb_stream_indexes; ++j ) {
3091 int st_idx = pgrm->stream_index[j];
3092 AVStream *st = fmt_ctx->streams[st_idx];
3093 if( st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO ) continue;
3094 if( st_idx == vidx ) pidx = i;
3097 if( pidx < 0 ) return -1;
3099 int64_t channels = 0;
3100 AVProgram *pgrm = fmt_ctx->programs[pidx];
3101 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
3102 int aidx = pgrm->stream_index[j];
3103 AVStream *st = fmt_ctx->streams[aidx];
3104 if( st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO ) continue;
3105 if( astream > 0 ) { --astream; continue; }
3107 for( int i=0; astrm<0 && i<ffaudio.size(); ++i )
3108 if( ffaudio[i]->fidx == aidx ) astrm = i;
3110 if( ret < 0 ) ret = astrm;
3111 int64_t mask = (1 << ffaudio[astrm]->channels) - 1;
3112 channels |= mask << ffaudio[astrm]->channel0;
3114 if( !astream ) break;
3116 channel_mask = channels;
3121 int FFMPEG::ff_total_video_layers()
3123 return vstrm_index.size();
3126 int FFMPEG::ff_total_vstreams()
3128 return ffvideo.size();
3131 int FFMPEG::ff_video_width(int stream)
3133 return ffvideo[stream]->width;
3136 int FFMPEG::ff_video_height(int stream)
3138 return ffvideo[stream]->height;
3141 int FFMPEG::ff_set_video_width(int stream, int width)
3143 int w = ffvideo[stream]->width;
3144 ffvideo[stream]->width = width;
3148 int FFMPEG::ff_set_video_height(int stream, int height)
3150 int h = ffvideo[stream]->height;
3151 ffvideo[stream]->height = height;
3155 int FFMPEG::ff_coded_width(int stream)
3157 return ffvideo[stream]->avctx->coded_width;
3160 int FFMPEG::ff_coded_height(int stream)
3162 return ffvideo[stream]->avctx->coded_height;
3165 float FFMPEG::ff_aspect_ratio(int stream)
3167 return ffvideo[stream]->aspect_ratio;
3170 const char* FFMPEG::ff_video_format(int stream)
3172 AVStream *st = ffvideo[stream]->st;
3173 AVCodecID id = st->codecpar->codec_id;
3174 const AVCodecDescriptor *desc = avcodec_descriptor_get(id);
3175 return desc ? desc->name : _("Unknown");
3178 double FFMPEG::ff_frame_rate(int stream)
3180 return ffvideo[stream]->frame_rate;
3183 int64_t FFMPEG::ff_video_frames(int stream)
3185 return ffvideo[stream]->length;
3188 int FFMPEG::ff_video_pid(int stream)
3190 return ffvideo[stream]->st->id;
3193 int FFMPEG::ff_video_mpeg_color_range(int stream)
3195 return ffvideo[stream]->st->codecpar->color_range == AVCOL_RANGE_MPEG ? 1 : 0;
3198 int FFMPEG::ff_cpus()
3200 return file_base->file->cpus;
3203 const char *FFMPEG::ff_hw_dev()
3205 return &file_base->file->preferences->use_hw_dev[0];
3208 int FFVideoStream::create_filter(const char *filter_spec, AVCodecParameters *avpar)
3210 avfilter_register_all();
3211 const char *sp = filter_spec;
3212 char filter_name[BCSTRLEN], *np = filter_name;
3213 int i = sizeof(filter_name);
3214 while( --i>=0 && *sp!=0 && !strchr(" \t:=,",*sp) ) *np++ = *sp++;
3216 const AVFilter *filter = !filter_name[0] ? 0 : avfilter_get_by_name(filter_name);
3217 if( !filter || avfilter_pad_get_type(filter->inputs,0) != AVMEDIA_TYPE_VIDEO ) {
3218 ff_err(AVERROR(EINVAL), "FFVideoStream::create_filter: %s\n", filter_spec);
3221 filter_graph = avfilter_graph_alloc();
3222 const AVFilter *buffersrc = avfilter_get_by_name("buffer");
3223 const AVFilter *buffersink = avfilter_get_by_name("buffersink");
3225 int ret = 0; char args[BCTEXTLEN];
3226 AVPixelFormat pix_fmt = (AVPixelFormat)avpar->format;
3227 snprintf(args, sizeof(args),
3228 "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
3229 avpar->width, avpar->height, (int)pix_fmt,
3230 st->time_base.num, st->time_base.den,
3231 avpar->sample_aspect_ratio.num, avpar->sample_aspect_ratio.den);
3233 ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
3234 args, NULL, filter_graph);
3236 ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
3237 NULL, NULL, filter_graph);
3239 ret = av_opt_set_bin(buffersink_ctx, "pix_fmts",
3240 (uint8_t*)&pix_fmt, sizeof(pix_fmt),
3241 AV_OPT_SEARCH_CHILDREN);
3243 ff_err(ret, "FFVideoStream::create_filter");
3245 ret = FFStream::create_filter(filter_spec);
3246 return ret >= 0 ? 0 : -1;
3249 int FFAudioStream::create_filter(const char *filter_spec, AVCodecParameters *avpar)
3251 avfilter_register_all();
3252 const char *sp = filter_spec;
3253 char filter_name[BCSTRLEN], *np = filter_name;
3254 int i = sizeof(filter_name);
3255 while( --i>=0 && *sp!=0 && !strchr(" \t:=,",*sp) ) *np++ = *sp++;
3257 const AVFilter *filter = !filter_name[0] ? 0 : avfilter_get_by_name(filter_name);
3258 if( !filter || avfilter_pad_get_type(filter->inputs,0) != AVMEDIA_TYPE_AUDIO ) {
3259 ff_err(AVERROR(EINVAL), "FFAudioStream::create_filter: %s\n", filter_spec);
3262 filter_graph = avfilter_graph_alloc();
3263 const AVFilter *buffersrc = avfilter_get_by_name("abuffer");
3264 const AVFilter *buffersink = avfilter_get_by_name("abuffersink");
3265 int ret = 0; char args[BCTEXTLEN];
3266 AVSampleFormat sample_fmt = (AVSampleFormat)avpar->format;
3267 snprintf(args, sizeof(args),
3268 "time_base=%d/%d:sample_rate=%d:sample_fmt=%s:channel_layout=0x%jx",
3269 st->time_base.num, st->time_base.den, avpar->sample_rate,
3270 av_get_sample_fmt_name(sample_fmt), avpar->channel_layout);
3272 ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
3273 args, NULL, filter_graph);
3275 ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
3276 NULL, NULL, filter_graph);
3278 ret = av_opt_set_bin(buffersink_ctx, "sample_fmts",
3279 (uint8_t*)&sample_fmt, sizeof(sample_fmt),
3280 AV_OPT_SEARCH_CHILDREN);
3282 ret = av_opt_set_bin(buffersink_ctx, "channel_layouts",
3283 (uint8_t*)&avpar->channel_layout,
3284 sizeof(avpar->channel_layout), AV_OPT_SEARCH_CHILDREN);
3286 ret = av_opt_set_bin(buffersink_ctx, "sample_rates",
3287 (uint8_t*)&sample_rate, sizeof(sample_rate),
3288 AV_OPT_SEARCH_CHILDREN);
3290 ff_err(ret, "FFAudioStream::create_filter");
3292 ret = FFStream::create_filter(filter_spec);
3293 return ret >= 0 ? 0 : -1;
3296 int FFStream::create_filter(const char *filter_spec)
3298 /* Endpoints for the filter graph. */
3299 AVFilterInOut *outputs = avfilter_inout_alloc();
3300 outputs->name = av_strdup("in");
3301 outputs->filter_ctx = buffersrc_ctx;
3302 outputs->pad_idx = 0;
3305 AVFilterInOut *inputs = avfilter_inout_alloc();
3306 inputs->name = av_strdup("out");
3307 inputs->filter_ctx = buffersink_ctx;
3308 inputs->pad_idx = 0;
3311 int ret = !outputs->name || !inputs->name ? -1 : 0;
3313 ret = avfilter_graph_parse_ptr(filter_graph, filter_spec,
3314 &inputs, &outputs, NULL);
3316 ret = avfilter_graph_config(filter_graph, NULL);
3319 ff_err(ret, "FFStream::create_filter");
3320 avfilter_graph_free(&filter_graph);
3323 avfilter_inout_free(&inputs);
3324 avfilter_inout_free(&outputs);
3328 int FFMPEG::scan(IndexState *index_state, int64_t *scan_position, int *canceled)
3331 av_init_packet(&pkt);
3332 AVFrame *frame = av_frame_alloc();
3334 fprintf(stderr,"FFMPEG::scan: ");
3335 fprintf(stderr,_("av_frame_alloc failed\n"));
3336 fprintf(stderr,"FFMPEG::scan:file=%s\n", file_base->asset->path);
3340 index_state->add_video_markers(ffvideo.size());
3341 index_state->add_audio_markers(ffaudio.size());
3343 for( int i=0; i<(int)fmt_ctx->nb_streams; ++i ) {
3345 AVDictionary *copts = 0;
3346 av_dict_copy(&copts, opts, 0);
3347 AVStream *st = fmt_ctx->streams[i];
3348 AVCodecID codec_id = st->codecpar->codec_id;
3349 AVCodec *decoder = avcodec_find_decoder(codec_id);
3350 AVCodecContext *avctx = avcodec_alloc_context3(decoder);
3352 eprintf(_("cant allocate codec context\n"));
3353 ret = AVERROR(ENOMEM);
3356 avcodec_parameters_to_context(avctx, st->codecpar);
3357 if( !av_dict_get(copts, "threads", NULL, 0) )
3358 avctx->thread_count = ff_cpus();
3359 ret = avcodec_open2(avctx, decoder, &copts);
3361 av_dict_free(&copts);
3363 AVCodecParameters *avpar = st->codecpar;
3364 switch( avpar->codec_type ) {
3365 case AVMEDIA_TYPE_VIDEO: {
3366 int vidx = ffvideo.size();
3367 while( --vidx>=0 && ffvideo[vidx]->fidx != i );
3368 if( vidx < 0 ) break;
3369 ffvideo[vidx]->avctx = avctx;
3371 case AVMEDIA_TYPE_AUDIO: {
3372 int aidx = ffaudio.size();
3373 while( --aidx>=0 && ffaudio[aidx]->fidx != i );
3374 if( aidx < 0 ) break;
3375 ffaudio[aidx]->avctx = avctx;
3380 fprintf(stderr,"FFMPEG::scan: ");
3381 fprintf(stderr,_("codec open failed\n"));
3382 fprintf(stderr,"FFMPEG::scan:file=%s\n", file_base->asset->path);
3383 avcodec_free_context(&avctx);
3387 for( int i=0; i<(int)fmt_ctx->nb_streams; ++i ) {
3388 AVStream *st = fmt_ctx->streams[i];
3389 AVCodecParameters *avpar = st->codecpar;
3390 if( avpar->codec_type != AVMEDIA_TYPE_AUDIO ) continue;
3391 int64_t tstmp = st->start_time;
3392 if( tstmp == AV_NOPTS_VALUE ) continue;
3393 int aidx = ffaudio.size();
3394 while( --aidx>=0 && ffaudio[aidx]->fidx != i );
3395 if( aidx < 0 ) continue;
3396 FFAudioStream *aud = ffaudio[aidx];
3397 tstmp -= aud->nudge;
3398 double secs = to_secs(tstmp, st->time_base);
3399 aud->curr_pos = secs * aud->sample_rate + 0.5;
3403 for( int64_t count=0; !*canceled; ++count ) {
3404 av_packet_unref(&pkt);
3405 pkt.data = 0; pkt.size = 0;
3407 int ret = av_read_frame(fmt_ctx, &pkt);
3409 if( ret == AVERROR_EOF ) break;
3410 if( ++errs > 100 ) {
3411 ff_err(ret,_("over 100 read_frame errs\n"));
3416 if( !pkt.data ) continue;
3417 int i = pkt.stream_index;
3418 if( i < 0 || i >= (int)fmt_ctx->nb_streams ) continue;
3419 AVStream *st = fmt_ctx->streams[i];
3420 if( pkt.pos > *scan_position ) *scan_position = pkt.pos;
3422 AVCodecParameters *avpar = st->codecpar;
3423 switch( avpar->codec_type ) {
3424 case AVMEDIA_TYPE_VIDEO: {
3425 int vidx = ffvideo.size();
3426 while( --vidx>=0 && ffvideo[vidx]->fidx != i );
3427 if( vidx < 0 ) break;
3428 FFVideoStream *vid = ffvideo[vidx];
3429 if( !vid->avctx ) break;
3430 int64_t tstmp = pkt.dts;
3431 if( tstmp == AV_NOPTS_VALUE ) tstmp = pkt.pts;
3432 if( tstmp != AV_NOPTS_VALUE && (pkt.flags & AV_PKT_FLAG_KEY) && pkt.pos > 0 ) {
3433 if( vid->nudge != AV_NOPTS_VALUE ) tstmp -= vid->nudge;
3434 double secs = to_secs(tstmp, st->time_base);
3435 int64_t frm = secs * vid->frame_rate + 0.5;
3436 if( frm < 0 ) frm = 0;
3437 index_state->put_video_mark(vidx, frm, pkt.pos);
3440 ret = avcodec_send_packet(vid->avctx, pkt);
3441 if( ret < 0 ) break;
3442 while( (ret=vid->decode_frame(frame)) > 0 ) {}
3445 case AVMEDIA_TYPE_AUDIO: {
3446 int aidx = ffaudio.size();
3447 while( --aidx>=0 && ffaudio[aidx]->fidx != i );
3448 if( aidx < 0 ) break;
3449 FFAudioStream *aud = ffaudio[aidx];
3450 if( !aud->avctx ) break;
3451 int64_t tstmp = pkt.pts;
3452 if( tstmp == AV_NOPTS_VALUE ) tstmp = pkt.dts;
3453 if( tstmp != AV_NOPTS_VALUE && (pkt.flags & AV_PKT_FLAG_KEY) && pkt.pos > 0 ) {
3454 if( aud->nudge != AV_NOPTS_VALUE ) tstmp -= aud->nudge;
3455 double secs = to_secs(tstmp, st->time_base);
3456 int64_t sample = secs * aud->sample_rate + 0.5;
3458 index_state->put_audio_mark(aidx, sample, pkt.pos);
3460 ret = avcodec_send_packet(aud->avctx, &pkt);
3461 if( ret < 0 ) break;
3462 int ch = aud->channel0, nch = aud->channels;
3463 int64_t pos = index_state->pos(ch);
3464 if( pos != aud->curr_pos ) {
3465 if( abs(pos-aud->curr_pos) > 1 )
3466 printf("audio%d pad %jd %jd (%jd)\n", aud->idx, pos, aud->curr_pos, pos-aud->curr_pos);
3467 index_state->pad_data(ch, nch, aud->curr_pos);
3469 while( (ret=aud->decode_frame(frame)) > 0 ) {
3470 //if( frame->channels != nch ) break;
3471 aud->init_swr(frame->channels, frame->format, frame->sample_rate);
3473 int len = aud->get_samples(samples,
3474 &frame->extended_data[0], frame->nb_samples);
3475 pos = aud->curr_pos;
3476 if( (aud->curr_pos += len) >= 0 ) {
3478 samples += -pos * nch;
3479 len = aud->curr_pos;
3481 for( int i=0; i<nch; ++i )
3482 index_state->put_data(ch+i,nch,samples+i,len);
3489 av_frame_free(&frame);
3493 void FFStream::load_markers(IndexMarks &marks, double rate)
3496 int64_t sz = marks.size();
3497 int max_entries = fmt_ctx->max_index_size / sizeof(AVIndexEntry) - 1;
3498 int nb_ent = st->nb_index_entries;
3499 // some formats already have an index
3501 AVIndexEntry *ep = &st->index_entries[nb_ent-1];
3502 int64_t tstmp = ep->timestamp;
3503 if( nudge != AV_NOPTS_VALUE ) tstmp -= nudge;
3504 double secs = ffmpeg->to_secs(tstmp, st->time_base);
3505 int64_t no = secs * rate;
3506 while( in < sz && marks[in].no <= no ) ++in;
3508 int64_t len = sz - in;
3509 int64_t count = max_entries - nb_ent;
3510 if( count > len ) count = len;
3511 for( int i=0; i<count; ++i ) {
3512 int k = in + i * len / count;
3513 int64_t no = marks[k].no, pos = marks[k].pos;
3514 double secs = (double)no / rate;
3515 int64_t tstmp = secs * st->time_base.den / st->time_base.num;
3516 if( nudge != AV_NOPTS_VALUE ) tstmp += nudge;
3517 av_add_index_entry(st, pos, tstmp, 0, 0, AVINDEX_KEYFRAME);