10 // work arounds (centos)
13 #define INT64_MAX 9223372036854775807LL
17 #include "bccmodels.h"
18 #include "fileffmpeg.h"
21 #include "mainerror.h"
26 #define VIDEO_INBUF_SIZE 0x10000
27 #define AUDIO_INBUF_SIZE 0x10000
28 #define VIDEO_REFILL_THRESH 0
29 #define AUDIO_REFILL_THRESH 0x1000
31 Mutex FFMPEG::fflock("FFMPEG::fflock");
33 static void ff_err(int ret, const char *fmt, ...)
38 vsnprintf(msg, sizeof(msg), fmt, ap);
40 char errmsg[BCSTRLEN];
41 av_strerror(ret, errmsg, sizeof(errmsg));
42 fprintf(stderr,_("%s err: %s\n"),msg, errmsg);
58 pkt.data = 0; pkt.size = 0;
61 FFrame::FFrame(FFStream *fst)
64 frm = av_frame_alloc();
65 init = fst->init_frame(frm);
73 void FFrame::queue(int64_t pos)
79 void FFrame::dequeue()
84 int FFAudioStream::read(float *fp, long len)
92 while( --k >= 0 ) *fp++ = *op++;
93 if( op >= lmt ) op = bfr;
98 void FFAudioStream::realloc(long sz, int nch, long len)
101 float *np = new float[bsz];
102 inp = np + read(np, len) * nch;
107 delete [] bfr; bfr = np;
110 void FFAudioStream::realloc(long sz, int nch)
112 if( sz > this->sz || this->nch != nch ) {
113 long len = this->nch != nch ? 0 : curr_pos - seek_pos;
114 if( len > this->sz ) len = this->sz;
116 realloc(sz, nch, len);
120 void FFAudioStream::reserve(long sz, int nch)
122 long len = (inp - outp) / nch;
124 if( sz > this->sz || this->nch != nch ) {
125 if( this->nch != nch ) len = 0;
126 realloc(sz, nch, len);
129 if( (len*=nch) > 0 && bfr != outp )
130 memmove(bfr, outp, len*sizeof(*bfr));
135 long FFAudioStream::used()
137 long len = inp>=outp ? inp-outp : inp-bfr + lmt-outp;
140 long FFAudioStream::avail()
143 if( in1 >= lmt ) in1 = bfr;
144 long len = outp >= in1 ? outp-in1 : outp-bfr + lmt-in1;
147 void FFAudioStream::reset() // clear bfr
152 void FFAudioStream::iseek(int64_t ofs)
154 outp = inp - ofs*nch;
155 if( outp < bfr ) outp += sz*nch;
158 float *FFAudioStream::get_outp(int ofs)
165 int64_t FFAudioStream::put_inp(int ofs)
168 return (inp-outp) / nch;
171 int FFAudioStream::write(const float *fp, long len)
179 while( --k >= 0 ) *ip++ = *fp++;
180 if( ip >= lmt ) ip = bfr;
186 int FFAudioStream::zero(long len)
194 while( --k >= 0 ) *ip++ = 0;
195 if( ip >= lmt ) ip = bfr;
201 // does not advance outp
202 int FFAudioStream::read(double *dp, long len, int ch)
205 float *op = outp + ch;
206 float *lmt1 = lmt + nch-1;
208 int k = (lmt1 - op) / nch;
211 while( --k >= 0 ) { *dp++ = *op; op += nch; }
212 if( op >= lmt ) op -= sz*nch;
217 // load linear buffer, no wrapping allowed, does not advance inp
218 int FFAudioStream::write(const double *dp, long len, int ch)
221 float *ip = inp + ch;
222 while( --n >= 0 ) { *ip = *dp++; ip += nch; }
227 FFStream::FFStream(FFMPEG *ffmpeg, AVStream *st, int idx)
229 this->ffmpeg = ffmpeg;
232 frm_lock = new Mutex("FFStream::frm_lock");
238 nudge = AV_NOPTS_VALUE;
240 reading = writing = 0;
246 FFStream::~FFStream()
248 if( reading > 0 || writing > 0 ) avcodec_close(st->codec);
249 if( fmt_ctx ) avformat_close_input(&fmt_ctx);
250 while( frms.first ) frms.remove(frms.first);
251 if( filter_graph ) avfilter_graph_free(&filter_graph);
252 if( frame ) av_frame_free(&frame);
253 if( fframe ) av_frame_free(&fframe);
254 bsfilter.remove_all_objects();
258 void FFStream::ff_lock(const char *cp)
260 FFMPEG::fflock.lock(cp);
263 void FFStream::ff_unlock()
265 FFMPEG::fflock.unlock();
268 void FFStream::queue(FFrame *frm)
270 frm_lock->lock("FFStream::queue");
274 ffmpeg->mux_lock->unlock();
277 void FFStream::dequeue(FFrame *frm)
279 frm_lock->lock("FFStream::dequeue");
281 frms.remove_pointer(frm);
285 int FFStream::encode_activate()
288 writing = ffmpeg->encode_activate();
292 int FFStream::decode_activate()
294 if( reading < 0 && (reading=ffmpeg->decode_activate()) > 0 ) {
295 ff_lock("FFStream::decode_activate");
297 AVDictionary *copts = 0;
298 av_dict_copy(&copts, ffmpeg->opts, 0);
300 // this should be avformat_copy_context(), but no copy avail
301 ret = avformat_open_input(&fmt_ctx, ffmpeg->fmt_ctx->filename, NULL, &copts);
303 ret = avformat_find_stream_info(fmt_ctx, 0);
304 st = fmt_ctx->streams[idx];
307 AVCodecID codec_id = st->codec->codec_id;
308 AVCodec *decoder = avcodec_find_decoder(codec_id);
309 ret = avcodec_open2(st->codec, decoder, &copts);
313 eprintf("FFStream::decode_activate: open decoder failed\n");
316 eprintf("FFStream::decode_activate: can't clone input file\n");
317 av_dict_free(&copts);
323 int FFStream::read_packet()
325 av_packet_unref(ipkt);
326 int ret = av_read_frame(fmt_ctx, ipkt);
327 if( ret >= 0 ) return 1;
329 if( ret == AVERROR_EOF ) return 0;
330 ff_err(ret, "FFStream::read_packet: av_read_frame failed\n");
335 int FFStream::decode(AVFrame *frame)
341 while( ret >= 0 && !flushed && --retries >= 0 && !got_frame ) {
346 if( !ret ) ipkt->stream_index = st->index;
348 if( ipkt->stream_index == st->index ) {
349 while( (ipkt->size > 0 || !ipkt->data) && !got_frame ) {
350 ret = decode_frame(frame, got_frame);
351 if( ret < 0 || !ipkt->data ) break;
364 fprintf(stderr, "FFStream::decode: Retry limit\n");
368 fprintf(stderr, "FFStream::decode: failed\n");
373 int FFStream::load_filter(AVFrame *frame)
375 int ret = av_buffersrc_add_frame_flags(buffersrc_ctx,
376 frame, AV_BUFFERSRC_FLAG_KEEP_REF);
378 av_frame_unref(frame);
379 eprintf("FFStream::load_filter: av_buffersrc_add_frame_flags failed\n");
384 int FFStream::read_filter(AVFrame *frame)
386 int ret = av_buffersink_get_frame(buffersink_ctx, frame);
388 if( ret == AVERROR(EAGAIN) ) return 0;
389 if( ret == AVERROR_EOF ) { st_eof(1); return -1; }
390 ff_err(ret, "FFStream::read_filter: av_buffersink_get_frame failed\n");
396 int FFStream::read_frame(AVFrame *frame)
398 if( !filter_graph || !buffersrc_ctx || !buffersink_ctx )
399 return decode(frame);
400 if( !fframe && !(fframe=av_frame_alloc()) ) {
401 fprintf(stderr, "FFStream::read_frame: av_frame_alloc failed\n");
405 while( !flushed && !(ret=read_filter(frame)) ) {
406 if( (ret=decode(fframe)) < 0 ) break;
407 if( ret > 0 && (ret=load_filter(fframe)) < 0 ) break;
412 int FFStream::write_packet(FFPacket &pkt)
415 av_packet_rescale_ts(pkt, st->codec->time_base, st->time_base);
416 pkt->stream_index = st->index;
417 return av_interleaved_write_frame(ffmpeg->fmt_ctx, pkt);
420 int FFStream::flush()
426 ret = encode_frame(pkt, 0, got_packet);
427 if( ret < 0 || !got_packet ) break;
428 ret = write_packet(pkt);
431 ff_err(ret, "FFStream::flush");
432 return ret >= 0 ? 0 : 1;
435 FFAudioStream::FFAudioStream(FFMPEG *ffmpeg, AVStream *strm, int idx)
436 : FFStream(ffmpeg, strm, idx)
438 channel0 = channels = 0;
441 seek_pos = curr_pos = 0;
443 resample_context = 0;
452 bfr = new float[bsz];
457 FFAudioStream::~FFAudioStream()
459 if( resample_context ) swr_free(&resample_context);
464 int FFAudioStream::load_history(uint8_t **data, int len)
466 float *samples = *(float **)data;
467 if( resample_context ) {
468 if( len > aud_bfr_sz ) {
474 aud_bfr = new float[aud_bfr_sz*channels];
476 int ret = swr_convert(resample_context,
477 (uint8_t**)&aud_bfr, aud_bfr_sz, (const uint8_t**)data, len);
479 ff_err(ret, "FFAudioStream::load_history: swr_convert failed\n");
485 // biggest user bfr since seek + frame
486 realloc(mbsz + len + 1, channels);
491 int FFAudioStream::decode_frame(AVFrame *frame, int &got_frame)
493 int ret = avcodec_decode_audio4(st->codec, frame, &got_frame, ipkt);
495 ff_err(ret, "FFAudioStream::decode_frame: Could not read audio frame\n");
501 int FFAudioStream::encode_activate()
503 if( writing >= 0 ) return writing;
504 AVCodecContext *ctx = st->codec;
505 frame_sz = ctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE ?
506 10000 : ctx->frame_size;
507 return FFStream::encode_activate();
510 int FFAudioStream::nb_samples()
512 AVCodecContext *ctx = st->codec;
513 return ctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE ?
514 10000 : ctx->frame_size;
517 int64_t FFAudioStream::load_buffer(double ** const sp, int len)
519 reserve(len+1, st->codec->channels);
520 for( int ch=0; ch<nch; ++ch )
521 write(sp[ch], len, ch);
525 int FFAudioStream::in_history(int64_t pos)
527 if( pos > curr_pos ) return 0;
528 int64_t len = curr_pos - seek_pos;
529 if( len > sz ) len = sz;
530 if( pos < curr_pos - len ) return 0;
535 int FFAudioStream::init_frame(AVFrame *frame)
537 AVCodecContext *ctx = st->codec;
538 frame->nb_samples = frame_sz;
539 frame->format = ctx->sample_fmt;
540 frame->channel_layout = ctx->channel_layout;
541 frame->sample_rate = ctx->sample_rate;
542 int ret = av_frame_get_buffer(frame, 0);
544 ff_err(ret, "FFAudioStream::init_frame: av_frame_get_buffer failed\n");
548 int FFAudioStream::load(int64_t pos, int len)
550 if( audio_seek(pos) < 0 ) return -1;
551 if( mbsz < len ) mbsz = len;
553 int64_t end_pos = pos + len;
554 if( !frame && !(frame=av_frame_alloc()) ) {
555 fprintf(stderr, "FFAudioStream::load: av_frame_alloc failed\n");
558 for( int i=0; ret>=0 && !flushed && curr_pos<end_pos && i<1000; ++i ) {
559 ret = read_frame(frame);
561 load_history(&frame->extended_data[0], frame->nb_samples);
562 curr_pos += frame->nb_samples;
565 if( end_pos > curr_pos ) {
566 zero(end_pos - curr_pos);
569 return curr_pos - pos;
572 int FFAudioStream::audio_seek(int64_t pos)
574 if( decode_activate() < 0 ) return -1;
575 if( in_history(pos) ) {
576 iseek(curr_pos - pos);
579 if( pos == curr_pos ) return 0;
580 if( !st->codec || !st->codec->codec ) return -1;
581 avcodec_flush_buffers(st->codec);
582 double secs = (double)pos / sample_rate;
583 int64_t tstmp = secs * st->time_base.den / st->time_base.num;
584 if( nudge != AV_NOPTS_VALUE ) tstmp += nudge;
585 avformat_seek_file(fmt_ctx, st->index, -INT64_MAX, tstmp, INT64_MAX, 0);
586 seek_pos = curr_pos = pos;
588 mbsz = 0; flushed = 0; need_packet = 1;
592 int FFAudioStream::encode(double **samples, int len)
594 if( encode_activate() <= 0 ) return -1;
597 int64_t count = load_buffer(samples, len);
600 while( ret >= 0 && count >= frame_sz ) {
601 frm = new FFrame(this);
602 if( (ret=frm->initted()) < 0 ) break;
603 AVFrame *frame = *frm;
604 float *bfrp = get_outp(frame_sz);
605 ret = swr_convert(resample_context,
606 (uint8_t **)frame->extended_data, frame_sz,
607 (const uint8_t **)&bfrp, frame_sz);
609 ff_err(ret, "FFAudioStream::encode: swr_convert failed\n");
612 frm->queue(curr_pos);
614 curr_pos += frame_sz;
619 return ret >= 0 ? 0 : 1;
622 int FFAudioStream::encode_frame(FFPacket &pkt, AVFrame *frame, int &got_packet)
624 int ret = avcodec_encode_audio2(st->codec, pkt, frame, &got_packet);
626 ff_err(ret, "FFAudioStream::encode_frame: encode audio failed\n");
632 FFVideoStream::FFVideoStream(FFMPEG *ffmpeg, AVStream *strm, int idx)
633 : FFStream(ffmpeg, strm, idx)
638 seek_pos = curr_pos = 0;
643 FFVideoStream::~FFVideoStream()
645 if( convert_ctx ) sws_freeContext(convert_ctx);
648 int FFVideoStream::decode_frame(AVFrame *frame, int &got_frame)
650 int ret = avcodec_decode_video2(st->codec, frame, &got_frame, ipkt);
652 ff_err(ret, "FFVideoStream::decode_frame: Could not read video frame\n");
660 int FFVideoStream::load(VFrame *vframe, int64_t pos)
662 int ret = video_seek(pos);
663 if( ret < 0 ) return -1;
664 if( !frame && !(frame=av_frame_alloc()) ) {
665 fprintf(stderr, "FFVideoStream::load: av_frame_alloc failed\n");
668 for( int i=0; ret>=0 && !flushed && curr_pos<=pos && i<1000; ++i ) {
669 ret = read_frame(frame);
672 AVCodecContext *ctx = st->codec;
673 ret = convert_cmodel(vframe, (AVPicture *)frame,
674 ctx->pix_fmt, ctx->width, ctx->height);
676 ret = ret > 0 ? 1 : ret < 0 ? -1 : 0;
680 int FFVideoStream::video_seek(int64_t pos)
682 if( decode_activate() < 0 ) return -1;
683 // if close enough, just read up to current
684 // 3*gop_size seems excessive, but less causes tears
685 int gop = 3*st->codec->gop_size;
686 if( gop < 4 ) gop = 4;
687 if( gop > 64 ) gop = 64;
688 if( pos >= curr_pos && pos <= curr_pos + gop ) return 0;
689 if( pos == curr_pos-1 && curr_pos > seek_pos ) return 1;
690 if( !st->codec || !st->codec->codec ) return -1;
691 avcodec_flush_buffers(st->codec);
692 // back up a few frames to read up to current to help repair damages
693 if( (pos-=gop) < 0 ) pos = 0;
694 double secs = (double)pos / frame_rate;
695 int64_t tstmp = secs * st->time_base.den / st->time_base.num;
696 if( nudge != AV_NOPTS_VALUE ) tstmp += nudge;
697 avformat_seek_file(fmt_ctx, st->index, -INT64_MAX, tstmp, INT64_MAX, 0);
698 seek_pos = curr_pos = pos;
700 flushed = 0; need_packet = 1;
704 int FFVideoStream::init_frame(AVFrame *picture)
706 AVCodecContext *ctx = st->codec;
707 picture->format = ctx->pix_fmt;
708 picture->width = ctx->width;
709 picture->height = ctx->height;
710 int ret = av_frame_get_buffer(picture, 32);
714 int FFVideoStream::encode(VFrame *vframe)
716 if( encode_activate() <= 0 ) return -1;
718 FFrame *picture = new FFrame(this);
719 int ret = picture->initted();
721 AVFrame *frame = *picture;
722 frame->pts = curr_pos;
723 AVCodecContext *ctx = st->codec;
724 ret = convert_pixfmt(vframe, (AVPicture*)frame,
725 ctx->pix_fmt, ctx->width, ctx->height);
728 picture->queue(curr_pos);
732 fprintf(stderr, "FFVideoStream::encode: encode failed\n");
735 return ret >= 0 ? 0 : 1;
738 int FFVideoStream::encode_frame(FFPacket &pkt, AVFrame *frame, int &got_packet)
740 int ret = avcodec_encode_video2(st->codec, pkt, frame, &got_packet);
742 ff_err(ret, "FFVideoStream::encode_frame: encode video failed\n");
748 PixelFormat FFVideoStream::color_model_to_pix_fmt(int color_model)
750 switch( color_model ) {
751 case BC_YUV422: return AV_PIX_FMT_YUYV422;
752 case BC_RGB888: return AV_PIX_FMT_RGB24;
753 case BC_RGBA8888: return AV_PIX_FMT_RGBA;
754 case BC_BGR8888: return AV_PIX_FMT_BGR0;
755 case BC_BGR888: return AV_PIX_FMT_BGR24;
756 case BC_YUV420P: return AV_PIX_FMT_YUV420P;
757 case BC_YUV422P: return AV_PIX_FMT_YUV422P;
758 case BC_YUV444P: return AV_PIX_FMT_YUV444P;
759 case BC_YUV411P: return AV_PIX_FMT_YUV411P;
760 case BC_RGB565: return AV_PIX_FMT_RGB565;
761 case BC_RGB161616: return AV_PIX_FMT_RGB48LE;
762 case BC_RGBA16161616: return AV_PIX_FMT_RGBA64LE;
766 return AV_PIX_FMT_NB;
769 int FFVideoStream::pix_fmt_to_color_model(PixelFormat pix_fmt)
772 case AV_PIX_FMT_YUYV422: return BC_YUV422;
773 case AV_PIX_FMT_RGB24: return BC_RGB888;
774 case AV_PIX_FMT_RGBA: return BC_RGBA8888;
775 case AV_PIX_FMT_BGR0: return BC_BGR8888;
776 case AV_PIX_FMT_BGR24: return BC_BGR888;
777 case AV_PIX_FMT_YUV420P: return BC_YUV420P;
778 case AV_PIX_FMT_YUV422P: return BC_YUV422P;
779 case AV_PIX_FMT_YUV444P: return BC_YUV444P;
780 case AV_PIX_FMT_YUV411P: return BC_YUV411P;
781 case AV_PIX_FMT_RGB565: return BC_RGB565;
782 case AV_PIX_FMT_RGB48LE: return BC_RGB161616;
783 case AV_PIX_FMT_RGBA64LE: return BC_RGBA16161616;
787 return BC_TRANSPARENCY;
790 int FFVideoStream::convert_picture_vframe(VFrame *frame,
791 AVPicture *ip, PixelFormat ifmt, int iw, int ih)
794 int cmodel = frame->get_color_model();
795 PixelFormat ofmt = color_model_to_pix_fmt(cmodel);
796 if( ofmt == AV_PIX_FMT_NB ) return -1;
797 int size = avpicture_fill(&opic, frame->get_data(), ofmt,
798 frame->get_w(), frame->get_h());
799 if( size < 0 ) return -1;
801 // transfer line sizes must match also
802 int planar = BC_CModels::is_planar(cmodel);
803 int packed_width = !planar ? frame->get_bytes_per_line() :
804 BC_CModels::calculate_pixelsize(cmodel) * frame->get_w();
805 if( packed_width != opic.linesize[0] ) return -1;
808 // override avpicture_fill() for planar types
809 opic.data[0] = frame->get_y();
810 opic.data[1] = frame->get_u();
811 opic.data[2] = frame->get_v();
814 convert_ctx = sws_getCachedContext(convert_ctx, iw, ih, ifmt,
815 frame->get_w(), frame->get_h(), ofmt, SWS_BICUBIC, NULL, NULL, NULL);
817 fprintf(stderr, "FFVideoStream::convert_picture_frame:"
818 " sws_getCachedContext() failed\n");
821 int ret = sws_scale(convert_ctx, ip->data, ip->linesize, 0, ih,
822 opic.data, opic.linesize);
824 ff_err(ret, "FFVideoStream::convert_picture_frame: sws_scale() failed\n");
830 int FFVideoStream::convert_cmodel(VFrame *frame,
831 AVPicture *ip, PixelFormat ifmt, int iw, int ih)
833 // try direct transfer
834 if( !convert_picture_vframe(frame, ip, ifmt, iw, ih) ) return 1;
835 // use indirect transfer
836 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(ifmt);
838 for( int i = 0; i <desc->nb_components; ++i ) {
839 int bits = desc->comp[i].depth_minus1 + 1;
840 if( bits > max_bits ) max_bits = bits;
842 // from libavcodec/pixdesc.c
843 #define pixdesc_has_alpha(pixdesc) ((pixdesc)->nb_components == 2 || \
844 (pixdesc)->nb_components == 4 || (pixdesc)->flags & AV_PIX_FMT_FLAG_PAL)
845 int icolor_model = pixdesc_has_alpha(desc) ?
846 (max_bits > 8 ? BC_RGBA16161616 : BC_RGBA8888) :
847 (max_bits > 8 ? BC_RGB161616 : BC_RGB888) ;
848 VFrame vframe(iw, ih, icolor_model);
849 if( convert_picture_vframe(&vframe, ip, ifmt, iw, ih) ) return -1;
850 frame->transfer_from(&vframe);
854 int FFVideoStream::convert_vframe_picture(VFrame *frame,
855 AVPicture *op, PixelFormat ofmt, int ow, int oh)
858 int cmodel = frame->get_color_model();
859 PixelFormat ifmt = color_model_to_pix_fmt(cmodel);
860 if( ifmt == AV_PIX_FMT_NB ) return -1;
861 int size = avpicture_fill(&opic, frame->get_data(), ifmt,
862 frame->get_w(), frame->get_h());
863 if( size < 0 ) return -1;
865 // transfer line sizes must match also
866 int planar = BC_CModels::is_planar(cmodel);
867 int packed_width = !planar ? frame->get_bytes_per_line() :
868 BC_CModels::calculate_pixelsize(cmodel) * frame->get_w();
869 if( packed_width != opic.linesize[0] ) return -1;
872 // override avpicture_fill() for planar types
873 opic.data[0] = frame->get_y();
874 opic.data[1] = frame->get_u();
875 opic.data[2] = frame->get_v();
878 convert_ctx = sws_getCachedContext(convert_ctx, frame->get_w(), frame->get_h(), ifmt,
879 ow, oh, ofmt, SWS_BICUBIC, NULL, NULL, NULL);
881 fprintf(stderr, "FFVideoStream::convert_frame_picture:"
882 " sws_getCachedContext() failed\n");
885 int ret = sws_scale(convert_ctx, opic.data, opic.linesize, 0, frame->get_h(),
886 op->data, op->linesize);
888 ff_err(ret, "FFVideoStream::convert_frame_picture: sws_scale() failed\n");
894 int FFVideoStream::convert_pixfmt(VFrame *frame,
895 AVPicture *op, PixelFormat ofmt, int ow, int oh)
897 // try direct transfer
898 if( !convert_vframe_picture(frame, op, ofmt, ow, oh) ) return 0;
899 // use indirect transfer
900 int colormodel = frame->get_color_model();
901 int bits = BC_CModels::calculate_pixelsize(colormodel) * 8;
902 bits /= BC_CModels::components(colormodel);
903 int icolor_model = BC_CModels::has_alpha(colormodel) ?
904 (bits > 8 ? BC_RGBA16161616 : BC_RGBA8888) :
905 (bits > 8 ? BC_RGB161616: BC_RGB888) ;
906 VFrame vframe(frame->get_w(), frame->get_h(), icolor_model);
907 vframe.transfer_from(frame);
908 if( convert_vframe_picture(&vframe, op, ofmt, ow, oh) ) return 1;
913 FFMPEG::FFMPEG(FileBase *file_base)
916 this->file_base = file_base;
917 memset(file_format,0,sizeof(file_format));
918 mux_lock = new Condition(0,"FFMPEG::mux_lock",0);
919 flow_lock = new Condition(1,"FFStream::flow_lock",0);
922 decoding = encoding = 0;
923 has_audio = has_video = 0;
926 opt_video_filter = 0;
927 opt_audio_filter = 0;
928 char option_path[BCTEXTLEN];
929 set_option_path(option_path, "%s", "ffmpeg.opts");
930 read_options(option_path, opts);
935 ff_lock("FFMPEG::~FFMPEG()");
937 ffaudio.remove_all_objects();
938 ffvideo.remove_all_objects();
939 if( encoding ) avformat_free_context(fmt_ctx);
944 delete [] opt_video_filter;
945 delete [] opt_audio_filter;
948 int FFMPEG::check_sample_rate(AVCodec *codec, int sample_rate)
950 const int *p = codec->supported_samplerates;
951 if( !p ) return sample_rate;
953 if( *p == sample_rate ) return *p;
959 static inline AVRational std_frame_rate(int i)
961 static const int m1 = 1001*12, m2 = 1000*12;
962 static const int freqs[] = {
963 40*m1, 48*m1, 50*m1, 60*m1, 80*m1,120*m1, 240*m1,
964 24*m2, 30*m2, 60*m2, 12*m2, 15*m2, 48*m2, 0,
966 int freq = i<30*12 ? (i+1)*1001 : freqs[i-30*12];
967 return (AVRational) { freq, 1001*12 };
970 AVRational FFMPEG::check_frame_rate(AVCodec *codec, double frame_rate)
972 const AVRational *p = codec->supported_framerates;
973 AVRational rate, best_rate = (AVRational) { 0, 0 };
974 double max_err = 1.; int i = 0;
975 while( ((p ? (rate=*p++) : (rate=std_frame_rate(i++))), rate.num) != 0 ) {
976 double framerate = (double) rate.num / rate.den;
977 double err = fabs(frame_rate/framerate - 1.);
978 if( err >= max_err ) continue;
982 return max_err < 0.0001 ? best_rate : (AVRational) { 0, 0 };
985 AVRational FFMPEG::to_sample_aspect_ratio(double aspect_ratio)
988 int height = 1000000, width = height * aspect_ratio;
990 MWindow::create_aspect_ratio(w, h, width, height);
991 return (AVRational){(int)w, (int)h};
994 return (AVRational){1, 1};
998 AVRational FFMPEG::to_time_base(int sample_rate)
1000 return (AVRational){1, sample_rate};
1003 void FFMPEG::set_option_path(char *path, const char *fmt, ...)
1006 strcat(path, "/ffmpeg/");
1007 path += strlen(path);
1010 vsprintf(path, fmt, ap);
1014 void FFMPEG::get_option_path(char *path, const char *type, const char *spec)
1019 set_option_path(path, "%s/%s", type, spec);
1022 int FFMPEG::get_format(char *format, const char *path, char *spec)
1024 char option_path[BCTEXTLEN], line[BCTEXTLEN], codec[BCTEXTLEN];
1025 get_option_path(option_path, path, spec);
1026 FILE *fp = fopen(option_path,"r");
1029 if( !fgets(line, sizeof(line), fp) ) ret = 1;
1031 line[sizeof(line)-1] = 0;
1032 ret = scan_option_line(line, format, codec);
1038 int FFMPEG::get_file_format()
1041 char audio_format[BCSTRLEN], video_format[BCSTRLEN];
1042 file_format[0] = audio_format[0] = video_format[0] = 0;
1043 Asset *asset = file_base->asset;
1044 if( !ret && asset->audio_data )
1045 ret = get_format(audio_format, "audio", asset->acodec);
1046 if( !ret && asset->video_data )
1047 ret = get_format(video_format, "video", asset->vcodec);
1048 if( !ret && !audio_format[0] && !video_format[0] )
1050 if( !ret && audio_format[0] && video_format[0] &&
1051 strcmp(audio_format, video_format) ) ret = -1;
1053 strcpy(file_format, audio_format[0] ? audio_format : video_format);
1057 int FFMPEG::scan_option_line(char *cp, char *tag, char *val)
1059 while( *cp == ' ' || *cp == '\t' ) ++cp;
1061 while( *cp && *cp != ' ' && *cp != '\t' && *cp != '=' ) ++cp;
1063 if( !len || len > BCSTRLEN-1 ) return 1;
1064 while( bp < cp ) *tag++ = *bp++;
1066 while( *cp == ' ' || *cp == '\t' ) ++cp;
1067 if( *cp == '=' ) ++cp;
1068 while( *cp == ' ' || *cp == '\t' ) ++cp;
1070 while( *cp && *cp != '\n' ) ++cp;
1072 if( len > BCTEXTLEN-1 ) return 1;
1073 while( bp < cp ) *val++ = *bp++;
1078 int FFMPEG::get_encoder(const char *options,
1079 char *format, char *codec, char *bsfilter, char *bsargs)
1081 FILE *fp = fopen(options,"r");
1083 eprintf("FFMPEG::get_encoder: options open failed %s\n",options);
1086 if( get_encoder(fp, format, codec, bsfilter, bsargs) )
1087 eprintf(_("FFMPEG::get_encoder:"
1088 " err: format/codec not found %s\n"), options);
1093 int FFMPEG::get_encoder(FILE *fp,
1094 char *format, char *codec, char *bsfilter, char *bsargs)
1096 format[0] = codec[0] = bsfilter[0] = bsargs[0] = 0;
1097 char line[BCTEXTLEN];
1098 if( !fgets(line, sizeof(line), fp) ) return 1;
1099 line[sizeof(line)-1] = 0;
1100 if( scan_option_line(line, format, codec) ) return 1;
1102 while( *cp && *cp != '|' ) ++cp;
1103 if( !*cp ) return 0;
1104 if( scan_option_line(cp+1, bsfilter, bsargs) ) return 1;
1105 do { *cp-- = 0; } while( cp>=codec && (*cp==' ' || *cp == '\t' ) );
1109 int FFMPEG::read_options(const char *options, AVDictionary *&opts)
1111 FILE *fp = fopen(options,"r");
1113 int ret = read_options(fp, options, opts);
1118 int FFMPEG::scan_options(const char *options, AVDictionary *&opts, AVStream *st)
1120 FILE *fp = fmemopen((void *)options,strlen(options),"r");
1122 int ret = read_options(fp, options, opts);
1124 AVDictionaryEntry *tag = av_dict_get(opts, "id", NULL, 0);
1125 if( tag ) st->id = strtol(tag->value,0,0);
1129 int FFMPEG::read_options(FILE *fp, const char *options, AVDictionary *&opts)
1131 int ret = 0, no = 0;
1132 char line[BCTEXTLEN];
1133 while( !ret && fgets(line, sizeof(line), fp) ) {
1134 line[sizeof(line)-1] = 0;
1136 if( line[0] == '#' ) continue;
1137 if( line[0] == '\n' ) continue;
1138 char key[BCSTRLEN], val[BCTEXTLEN];
1139 if( scan_option_line(line, key, val) ) {
1140 eprintf(_("FFMPEG::read_options:"
1141 " err reading %s: line %d\n"), options, no);
1145 if( !strcmp(key, "duration") )
1146 opt_duration = strtod(val, 0);
1147 if( !strcmp(key, "video_filter") )
1148 opt_video_filter = cstrdup(val);
1149 if( !strcmp(key, "audio_filter") )
1150 opt_audio_filter = cstrdup(val);
1151 else if( !strcmp(key, "loglevel") )
1154 av_dict_set(&opts, key, val, 0);
1160 int FFMPEG::load_options(const char *options, AVDictionary *&opts)
1162 char option_path[BCTEXTLEN];
1163 set_option_path(option_path, "%s", options);
1164 return read_options(option_path, opts);
1167 int FFMPEG::load_options(const char *path, char *bfr, int len)
1170 FILE *fp = fopen(path, "r");
1172 fgets(bfr, len, fp); // skip hdr
1173 len = fread(bfr, 1, len-1, fp);
1174 if( len < 0 ) len = 0;
1180 void FFMPEG::set_loglevel(const char *ap)
1182 if( !ap || !*ap ) return;
1187 { "quiet" , AV_LOG_QUIET },
1188 { "panic" , AV_LOG_PANIC },
1189 { "fatal" , AV_LOG_FATAL },
1190 { "error" , AV_LOG_ERROR },
1191 { "warning", AV_LOG_WARNING },
1192 { "info" , AV_LOG_INFO },
1193 { "verbose", AV_LOG_VERBOSE },
1194 { "debug" , AV_LOG_DEBUG },
1196 for( int i=0; i<(int)(sizeof(log_levels)/sizeof(log_levels[0])); ++i ) {
1197 if( !strcmp(log_levels[i].name, ap) ) {
1198 av_log_set_level(log_levels[i].level);
1202 av_log_set_level(atoi(ap));
1205 double FFMPEG::to_secs(int64_t time, AVRational time_base)
1207 double base_time = time == AV_NOPTS_VALUE ? 0 :
1208 av_rescale_q(time, time_base, AV_TIME_BASE_Q);
1209 return base_time / AV_TIME_BASE;
1212 int FFMPEG::info(char *text, int len)
1214 if( len <= 0 ) return 0;
1215 #define report(s...) do { int n = snprintf(cp,len,s); cp += n; len -= n; } while(0)
1217 for( int i=0; i<(int)fmt_ctx->nb_streams; ++i ) {
1218 AVStream *st = fmt_ctx->streams[i];
1219 AVCodecContext *avctx = st->codec;
1220 report(_("stream %d, id 0x%06x:\n"), i, avctx->codec_id);
1221 const AVCodecDescriptor *desc = avcodec_descriptor_get(avctx->codec_id);
1222 if( avctx->codec_type == AVMEDIA_TYPE_VIDEO ) {
1223 AVRational framerate = av_guess_frame_rate(fmt_ctx, st, 0);
1224 double frame_rate = !framerate.den ? 0 : (double)framerate.num / framerate.den;
1225 report(" video %s",desc ? desc->name : " (unkn)");
1226 report(" %dx%d %5.2f", avctx->width, avctx->height, frame_rate);
1227 const char *pfn = av_get_pix_fmt_name(avctx->pix_fmt);
1228 report(" pix %s\n", pfn ? pfn : "(unkn)");
1229 double secs = to_secs(st->duration, st->time_base);
1230 int64_t length = secs * frame_rate + 0.5;
1231 report(" %jd frms %0.2f secs", length, secs);
1232 int hrs = secs/3600; secs -= hrs*3600;
1233 int mins = secs/60; secs -= mins*60;
1234 report(" %d:%02d:%05.2f\n", hrs, mins, secs);
1237 else if( avctx->codec_type == AVMEDIA_TYPE_AUDIO ) {
1238 int sample_rate = avctx->sample_rate;
1239 const char *fmt = av_get_sample_fmt_name(avctx->sample_fmt);
1240 report(" audio %s",desc ? desc->name : " (unkn)");
1241 report(" %dch %s %d",avctx->channels, fmt, sample_rate);
1242 int sample_bits = av_get_bits_per_sample(avctx->codec_id);
1243 report(" %dbits\n", sample_bits);
1244 double secs = to_secs(st->duration, st->time_base);
1245 int64_t length = secs * sample_rate + 0.5;
1246 report(" %jd smpl %0.2f secs", length, secs);
1247 int hrs = secs/3600; secs -= hrs*3600;
1248 int mins = secs/60; secs -= mins*60;
1249 report(" %d:%02d:%05.2f\n", hrs, mins, secs);
1252 report(_(" codec_type unknown\n"));
1255 for( int i=0; i<(int)fmt_ctx->nb_programs; ++i ) {
1256 report("program %d", i+1);
1257 AVProgram *pgrm = fmt_ctx->programs[i];
1258 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j )
1259 report(", %d", pgrm->stream_index[j]);
1263 AVDictionaryEntry *tag = 0;
1264 while ((tag = av_dict_get(fmt_ctx->metadata, "", tag, AV_DICT_IGNORE_SUFFIX)))
1265 report("%s=%s\n", tag->key, tag->value);
1274 int FFMPEG::init_decoder(const char *filename)
1276 ff_lock("FFMPEG::init_decoder");
1278 char file_opts[BCTEXTLEN];
1279 char *bp = strrchr(strcpy(file_opts, filename), '/');
1280 char *sp = strrchr(!bp ? file_opts : bp, '.');
1283 strcpy(sp, ".opts");
1284 fp = fopen(file_opts, "r");
1287 read_options(fp, file_opts, opts);
1291 load_options("decode.opts", opts);
1292 AVDictionary *fopts = 0;
1293 av_dict_copy(&fopts, opts, 0);
1294 int ret = avformat_open_input(&fmt_ctx, filename, NULL, &fopts);
1295 av_dict_free(&fopts);
1297 ret = avformat_find_stream_info(fmt_ctx, NULL);
1302 return !ret ? 0 : 1;
1305 int FFMPEG::open_decoder()
1308 if( stat(fmt_ctx->filename, &st) < 0 ) {
1309 eprintf("FFMPEG::open_decoder: can't stat file: %s\n",
1314 int64_t file_bits = 8 * st.st_size;
1315 if( !fmt_ctx->bit_rate && opt_duration > 0 )
1316 fmt_ctx->bit_rate = file_bits / opt_duration;
1319 if( fmt_ctx->bit_rate > 0 ) {
1320 for( int i=0; i<(int)fmt_ctx->nb_streams; ++i ) {
1321 AVStream *st = fmt_ctx->streams[i];
1322 if( st->duration != AV_NOPTS_VALUE ) continue;
1323 if( st->time_base.num > INT64_MAX / fmt_ctx->bit_rate ) continue;
1324 st->duration = av_rescale(file_bits, st->time_base.den,
1325 fmt_ctx->bit_rate * (int64_t) st->time_base.num);
1330 printf("FFMPEG::open_decoder: some stream times estimated\n");
1332 ff_lock("FFMPEG::open_decoder");
1334 for( int i=0; i<(int)fmt_ctx->nb_streams; ++i ) {
1335 AVStream *st = fmt_ctx->streams[i];
1336 if( st->duration == AV_NOPTS_VALUE ) bad_time = 1;
1337 AVCodecContext *avctx = st->codec;
1338 if( avctx->codec_type == AVMEDIA_TYPE_VIDEO ) {
1340 FFVideoStream *vid = new FFVideoStream(this, st, i);
1341 int vidx = ffvideo.size();
1342 vstrm_index.append(ffidx(vidx, 0));
1343 ffvideo.append(vid);
1344 vid->width = avctx->width;
1345 vid->height = avctx->height;
1346 AVRational framerate = av_guess_frame_rate(fmt_ctx, st, 0);
1347 vid->frame_rate = !framerate.den ? 0 : (double)framerate.num / framerate.den;
1348 double secs = to_secs(st->duration, st->time_base);
1349 vid->length = secs * vid->frame_rate;
1350 vid->aspect_ratio = (double)st->sample_aspect_ratio.num / st->sample_aspect_ratio.den;
1351 vid->nudge = st->start_time;
1353 if( opt_video_filter )
1354 vid->create_filter(opt_video_filter, avctx,avctx);
1356 else if( avctx->codec_type == AVMEDIA_TYPE_AUDIO ) {
1358 FFAudioStream *aud = new FFAudioStream(this, st, i);
1359 int aidx = ffaudio.size();
1360 ffaudio.append(aud);
1361 aud->channel0 = astrm_index.size();
1362 aud->channels = avctx->channels;
1363 for( int ch=0; ch<aud->channels; ++ch )
1364 astrm_index.append(ffidx(aidx, ch));
1365 aud->sample_rate = avctx->sample_rate;
1366 double secs = to_secs(st->duration, st->time_base);
1367 aud->length = secs * aud->sample_rate;
1368 if( avctx->sample_fmt != AV_SAMPLE_FMT_FLT ) {
1369 uint64_t layout = av_get_default_channel_layout(avctx->channels);
1370 if( !layout ) layout = ((uint64_t)1<<aud->channels) - 1;
1371 aud->resample_context = swr_alloc_set_opts(NULL,
1372 layout, AV_SAMPLE_FMT_FLT, avctx->sample_rate,
1373 layout, avctx->sample_fmt, avctx->sample_rate,
1375 swr_init(aud->resample_context);
1377 aud->nudge = st->start_time;
1379 if( opt_audio_filter )
1380 aud->create_filter(opt_audio_filter, avctx,avctx);
1384 printf("FFMPEG::open_decoder: some stream have bad times\n");
1390 int FFMPEG::init_encoder(const char *filename)
1392 int fd = ::open(filename,O_WRONLY);
1393 if( fd < 0 ) fd = open(filename,O_WRONLY+O_CREAT,0666);
1395 eprintf("FFMPEG::init_encoder: bad file path: %s\n", filename);
1399 int ret = get_file_format();
1401 eprintf("FFMPEG::init_encoder: bad file format: %s\n", filename);
1405 eprintf("FFMPEG::init_encoder: mismatch audio/video file format: %s\n", filename);
1408 ff_lock("FFMPEG::init_encoder");
1410 avformat_alloc_output_context2(&fmt_ctx, 0, file_format, filename);
1412 eprintf("FFMPEG::init_encoder: failed: %s\n", filename);
1417 load_options("encode.opts", opts);
1424 int FFMPEG::open_encoder(const char *type, const char *spec)
1427 Asset *asset = file_base->asset;
1428 char *filename = asset->path;
1429 AVDictionary *sopts = 0;
1430 av_dict_copy(&sopts, opts, 0);
1431 char option_path[BCTEXTLEN];
1432 set_option_path(option_path, "%s/%s.opts", type, type);
1433 read_options(option_path, sopts);
1434 get_option_path(option_path, type, spec);
1435 char format_name[BCSTRLEN], codec_name[BCTEXTLEN];
1436 char bsfilter[BCSTRLEN], bsargs[BCTEXTLEN];
1437 if( get_encoder(option_path, format_name, codec_name, bsfilter, bsargs) ) {
1438 eprintf("FFMPEG::open_encoder: get_encoder failed %s:%s\n",
1439 option_path, filename);
1444 ff_lock("FFMPEG::open_encoder");
1448 const AVCodecDescriptor *codec_desc = 0;
1449 AVCodec *codec = avcodec_find_encoder_by_name(codec_name);
1451 eprintf("FFMPEG::open_encoder: cant find codec %s:%s\n",
1452 codec_name, filename);
1456 codec_desc = avcodec_descriptor_get(codec->id);
1458 eprintf("FFMPEG::open_encoder: unknown codec %s:%s\n",
1459 codec_name, filename);
1464 st = avformat_new_stream(fmt_ctx, 0);
1466 eprintf("FFMPEG::open_encoder: cant create stream %s:%s\n",
1467 codec_name, filename);
1472 AVCodecContext *ctx = st->codec;
1473 switch( codec_desc->type ) {
1474 case AVMEDIA_TYPE_AUDIO: {
1476 eprintf("FFMPEG::open_encoder: duplicate audio %s:%s\n",
1477 codec_name, filename);
1482 if( scan_options(asset->ff_audio_options, sopts, st) ) {
1483 eprintf("FFMPEG::open_encoder: bad audio options %s:%s\n",
1484 codec_name, filename);
1488 if( asset->ff_audio_bitrate > 0 ) {
1489 ctx->bit_rate = asset->ff_audio_bitrate;
1491 sprintf(arg, "%d", asset->ff_audio_bitrate);
1492 av_dict_set(&sopts, "b", arg, 0);
1494 int aidx = ffaudio.size();
1495 int idx = aidx + ffvideo.size();
1496 FFAudioStream *aud = new FFAudioStream(this, st, idx);
1497 ffaudio.append(aud); fst = aud;
1498 aud->sample_rate = asset->sample_rate;
1499 ctx->channels = aud->channels = asset->channels;
1500 for( int ch=0; ch<aud->channels; ++ch )
1501 astrm_index.append(ffidx(aidx, ch));
1502 ctx->channel_layout = av_get_default_channel_layout(ctx->channels);
1503 ctx->sample_rate = check_sample_rate(codec, asset->sample_rate);
1504 if( !ctx->sample_rate ) {
1505 eprintf("FFMPEG::open_audio_encode:"
1506 " check_sample_rate failed %s\n", filename);
1510 ctx->time_base = st->time_base = (AVRational){1, aud->sample_rate};
1511 ctx->sample_fmt = codec->sample_fmts[0];
1512 uint64_t layout = av_get_default_channel_layout(ctx->channels);
1513 aud->resample_context = swr_alloc_set_opts(NULL,
1514 layout, ctx->sample_fmt, aud->sample_rate,
1515 layout, AV_SAMPLE_FMT_FLT, ctx->sample_rate,
1517 swr_init(aud->resample_context);
1520 case AVMEDIA_TYPE_VIDEO: {
1522 eprintf("FFMPEG::open_encoder: duplicate video %s:%s\n",
1523 codec_name, filename);
1528 if( scan_options(asset->ff_video_options, sopts, st) ) {
1529 eprintf("FFMPEG::open_encoder: bad video options %s:%s\n",
1530 codec_name, filename);
1534 if( asset->ff_video_bitrate > 0 ) {
1535 ctx->bit_rate = asset->ff_video_bitrate;
1537 sprintf(arg, "%d", asset->ff_video_bitrate);
1538 av_dict_set(&sopts, "b", arg, 0);
1540 else if( asset->ff_video_quality > 0 ) {
1541 ctx->global_quality = asset->ff_video_quality * FF_QP2LAMBDA;
1542 ctx->qmin = ctx->qmax = asset->ff_video_quality;
1543 ctx->mb_lmin = ctx->qmin * FF_QP2LAMBDA;
1544 ctx->mb_lmax = ctx->qmax * FF_QP2LAMBDA;
1545 ctx->flags |= CODEC_FLAG_QSCALE;
1547 av_dict_set(&sopts, "flags", "+qscale", 0);
1548 sprintf(arg, "%d", asset->ff_video_quality);
1549 av_dict_set(&sopts, "qscale", arg, 0);
1550 sprintf(arg, "%d", ctx->global_quality);
1551 av_dict_set(&sopts, "global_quality", arg, 0);
1553 int vidx = ffvideo.size();
1554 int idx = vidx + ffaudio.size();
1555 FFVideoStream *vid = new FFVideoStream(this, st, idx);
1556 vstrm_index.append(ffidx(vidx, 0));
1557 ffvideo.append(vid); fst = vid;
1558 vid->width = asset->width;
1559 ctx->width = (vid->width+3) & ~3;
1560 vid->height = asset->height;
1561 ctx->height = (vid->height+3) & ~3;
1562 vid->frame_rate = asset->frame_rate;
1563 ctx->sample_aspect_ratio = to_sample_aspect_ratio(asset->aspect_ratio);
1564 ctx->pix_fmt = codec->pix_fmts ? codec->pix_fmts[0] : AV_PIX_FMT_YUV420P;
1565 AVRational frame_rate = check_frame_rate(codec, vid->frame_rate);
1566 if( !frame_rate.num || !frame_rate.den ) {
1567 eprintf("FFMPEG::open_audio_encode:"
1568 " check_frame_rate failed %s\n", filename);
1572 ctx->time_base = (AVRational) { frame_rate.den, frame_rate.num };
1573 st->time_base = ctx->time_base;
1577 eprintf("FFMPEG::open_encoder: not audio/video, %s:%s\n",
1578 codec_name, filename);
1583 if( fmt_ctx->oformat->flags & AVFMT_GLOBALHEADER )
1584 st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
1586 ret = avcodec_open2(st->codec, codec, &sopts);
1588 ff_err(ret,"FFMPEG::open_encoder");
1589 eprintf("FFMPEG::open_encoder: open failed %s:%s\n",
1590 codec_name, filename);
1597 if( fst && bsfilter[0] )
1598 fst->add_bsfilter(bsfilter, !bsargs[0] ? 0 : bsargs);
1602 av_dict_free(&sopts);
1606 int FFMPEG::close_encoder()
1609 if( encoding > 0 ) {
1610 av_write_trailer(fmt_ctx);
1611 if( !(fmt_ctx->flags & AVFMT_NOFILE) )
1612 avio_closep(&fmt_ctx->pb);
1618 int FFMPEG::decode_activate()
1620 if( decoding < 0 ) {
1622 int npgrms = fmt_ctx->nb_programs;
1623 for( int i=0; i<npgrms; ++i ) {
1624 AVProgram *pgrm = fmt_ctx->programs[i];
1625 // first start time video stream
1626 int64_t vstart_time = -1;
1627 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
1628 int st_idx = pgrm->stream_index[j];
1629 AVStream *st = fmt_ctx->streams[st_idx];
1630 AVCodecContext *avctx = st->codec;
1631 if( avctx->codec_type == AVMEDIA_TYPE_VIDEO ) {
1632 if( st->start_time == AV_NOPTS_VALUE ) continue;
1633 vstart_time = st->start_time;
1637 // max start time audio stream
1638 int64_t astart_time = -1;
1639 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
1640 int st_idx = pgrm->stream_index[j];
1641 AVStream *st = fmt_ctx->streams[st_idx];
1642 AVCodecContext *avctx = st->codec;
1643 if( avctx->codec_type == AVMEDIA_TYPE_VIDEO ) {
1644 if( st->start_time == AV_NOPTS_VALUE ) continue;
1645 if( astart_time > st->start_time ) continue;
1646 astart_time = st->start_time;
1649 if( astart_time < 0 || vstart_time < 0 ) continue;
1650 // match program streams to max start_time
1651 int64_t nudge = vstart_time > astart_time ? vstart_time : astart_time;
1652 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
1653 int st_idx = pgrm->stream_index[j];
1654 AVStream *st = fmt_ctx->streams[st_idx];
1655 AVCodecContext *avctx = st->codec;
1656 if( avctx->codec_type == AVMEDIA_TYPE_AUDIO ) {
1657 for( int k=0; k<ffaudio.size(); ++k ) {
1658 if( ffaudio[k]->idx == st_idx )
1659 ffaudio[k]->nudge = nudge;
1662 else if( avctx->codec_type == AVMEDIA_TYPE_VIDEO ) {
1663 for( int k=0; k<ffvideo.size(); ++k ) {
1664 if( ffvideo[k]->idx == st_idx )
1665 ffvideo[k]->nudge = nudge;
1670 int64_t vstart_time = 0, astart_time = 0;
1671 int nstreams = fmt_ctx->nb_streams;
1672 for( int i=0; i<nstreams; ++i ) {
1673 AVStream *st = fmt_ctx->streams[i];
1674 AVCodecContext *avctx = st->codec;
1675 switch( avctx->codec_type ) {
1676 case AVMEDIA_TYPE_VIDEO:
1677 if( st->start_time == AV_NOPTS_VALUE ) continue;
1678 if( vstart_time >= st->start_time ) continue;
1679 vstart_time = st->start_time;
1681 case AVMEDIA_TYPE_AUDIO:
1682 if( st->start_time == AV_NOPTS_VALUE ) continue;
1683 if( astart_time >= st->start_time ) continue;
1684 astart_time = st->start_time;
1688 int64_t nudge = vstart_time > astart_time ? vstart_time : astart_time;
1689 for( int k=0; k<ffvideo.size(); ++k ) {
1690 if( ffvideo[k]->nudge != AV_NOPTS_VALUE ) continue;
1691 ffvideo[k]->nudge = nudge;
1693 for( int k=0; k<ffaudio.size(); ++k ) {
1694 if( ffaudio[k]->nudge != AV_NOPTS_VALUE ) continue;
1695 ffaudio[k]->nudge = nudge;
1702 int FFMPEG::encode_activate()
1705 if( encoding < 0 ) {
1707 if( !(fmt_ctx->flags & AVFMT_NOFILE) &&
1708 (ret=avio_open(&fmt_ctx->pb, fmt_ctx->filename, AVIO_FLAG_WRITE)) < 0 ) {
1709 ff_err(ret, "FFMPEG::encode_activate: err opening : %s\n",
1714 AVDictionary *fopts = 0;
1715 char option_path[BCTEXTLEN];
1716 set_option_path(option_path, "format/%s", file_format);
1717 read_options(option_path, fopts);
1718 ret = avformat_write_header(fmt_ctx, &fopts);
1719 av_dict_free(&fopts);
1721 ff_err(ret, "FFMPEG::encode_activate: write header failed %s\n",
1730 int FFMPEG::audio_seek(int stream, int64_t pos)
1732 int aidx = astrm_index[stream].st_idx;
1733 FFAudioStream *aud = ffaudio[aidx];
1734 aud->audio_seek(pos);
1735 aud->seek_pos = aud->curr_pos = pos;
1739 int FFMPEG::video_seek(int stream, int64_t pos)
1741 int vidx = vstrm_index[stream].st_idx;
1742 FFVideoStream *vid = ffvideo[vidx];
1743 vid->video_seek(pos);
1744 vid->seek_pos = vid->curr_pos = pos;
1749 int FFMPEG::decode(int chn, int64_t pos, double *samples, int len)
1751 if( !has_audio || chn >= astrm_index.size() ) return -1;
1752 int aidx = astrm_index[chn].st_idx;
1753 FFAudioStream *aud = ffaudio[aidx];
1754 if( aud->load(pos, len) < len ) return -1;
1755 int ch = astrm_index[chn].st_ch;
1756 return aud->read(samples,len,ch);
1759 int FFMPEG::decode(int layer, int64_t pos, VFrame *vframe)
1761 if( !has_video || layer >= vstrm_index.size() ) return -1;
1762 int vidx = vstrm_index[layer].st_idx;
1763 FFVideoStream *vid = ffvideo[vidx];
1764 return vid->load(vframe, pos);
1767 int FFMPEG::encode(int stream, double **samples, int len)
1769 FFAudioStream *aud = ffaudio[stream];
1770 return aud->encode(samples, len);
1774 int FFMPEG::encode(int stream, VFrame *frame)
1776 FFVideoStream *vid = ffvideo[stream];
1777 return vid->encode(frame);
1780 void FFMPEG::start_muxer()
1788 void FFMPEG::stop_muxer()
1797 void FFMPEG::flow_off()
1800 flow_lock->lock("FFMPEG::flow_off");
1804 void FFMPEG::flow_on()
1808 flow_lock->unlock();
1811 void FFMPEG::flow_ctl()
1814 flow_lock->lock("FFMPEG::flow_ctl");
1815 flow_lock->unlock();
1819 int FFMPEG::mux_audio(FFrame *frm)
1822 FFStream *fst = frm->fst;
1823 AVCodecContext *ctx = fst->st->codec;
1824 AVFrame *frame = *frm;
1825 AVRational tick_rate = {1, ctx->sample_rate};
1826 frame->pts = av_rescale_q(frm->position, tick_rate, ctx->time_base);
1828 int ret = fst->encode_frame(pkt, frame, got_packet);
1829 if( ret >= 0 && got_packet )
1830 ret = fst->write_packet(pkt);
1832 ff_err(ret, "FFMPEG::mux_audio");
1833 return ret >= 0 ? 0 : 1;
1836 int FFMPEG::mux_video(FFrame *frm)
1839 FFStream *fst = frm->fst;
1840 AVFrame *frame = *frm;
1841 frame->pts = frm->position;
1842 int ret = 1, got_packet = 0;
1843 if( fmt_ctx->oformat->flags & AVFMT_RAWPICTURE ) {
1844 /* a hack to avoid data copy with some raw video muxers */
1845 pkt->flags |= AV_PKT_FLAG_KEY;
1846 pkt->stream_index = fst->st->index;
1847 AVPicture *picture = (AVPicture *)frame;
1848 pkt->data = (uint8_t *)picture;
1849 pkt->size = sizeof(AVPicture);
1850 pkt->pts = pkt->dts = frame->pts;
1854 ret = fst->encode_frame(pkt, frame, got_packet);
1855 if( ret >= 0 && got_packet )
1856 ret = fst->write_packet(pkt);
1858 ff_err(ret, "FFMPEG::mux_video");
1859 return ret >= 0 ? 0 : 1;
1865 double atm = -1, vtm = -1;
1866 FFrame *afrm = 0, *vfrm = 0;
1868 for( int i=0; i<ffaudio.size(); ++i ) { // earliest audio
1869 FFStream *fst = ffaudio[i];
1870 if( fst->frm_count < 3 ) { demand = 1; flow_on(); }
1871 FFrame *frm = fst->frms.first;
1872 if( !frm ) { if( !done ) return; continue; }
1873 double tm = to_secs(frm->position, fst->st->codec->time_base);
1874 if( atm < 0 || tm < atm ) { atm = tm; afrm = frm; }
1876 for( int i=0; i<ffvideo.size(); ++i ) { // earliest video
1877 FFStream *fst = ffvideo[i];
1878 if( fst->frm_count < 2 ) { demand = 1; flow_on(); }
1879 FFrame *frm = fst->frms.first;
1880 if( !frm ) { if( !done ) return; continue; }
1881 double tm = to_secs(frm->position, fst->st->codec->time_base);
1882 if( vtm < 0 || tm < vtm ) { vtm = tm; vfrm = frm; }
1884 if( !demand ) flow_off();
1885 if( !afrm && !vfrm ) break;
1886 int v = !afrm ? -1 : !vfrm ? 1 : av_compare_ts(
1887 vfrm->position, vfrm->fst->st->codec->time_base,
1888 afrm->position, afrm->fst->st->codec->time_base);
1889 FFrame *frm = v <= 0 ? vfrm : afrm;
1890 if( frm == afrm ) mux_audio(frm);
1891 if( frm == vfrm ) mux_video(frm);
1900 mux_lock->lock("FFMPEG::run");
1904 for( int i=0; i<ffaudio.size(); ++i )
1905 ffaudio[i]->flush();
1906 for( int i=0; i<ffvideo.size(); ++i )
1907 ffvideo[i]->flush();
1911 int FFMPEG::ff_total_audio_channels()
1913 return astrm_index.size();
1916 int FFMPEG::ff_total_astreams()
1918 return ffaudio.size();
1921 int FFMPEG::ff_audio_channels(int stream)
1923 return ffaudio[stream]->channels;
1926 int FFMPEG::ff_sample_rate(int stream)
1928 return ffaudio[stream]->sample_rate;
1931 const char* FFMPEG::ff_audio_format(int stream)
1933 AVStream *st = ffaudio[stream]->st;
1934 AVCodecID id = st->codec->codec_id;
1935 const AVCodecDescriptor *desc = avcodec_descriptor_get(id);
1936 return desc ? desc->name : "Unknown";
1939 int FFMPEG::ff_audio_pid(int stream)
1941 return ffaudio[stream]->st->id;
1944 int64_t FFMPEG::ff_audio_samples(int stream)
1946 return ffaudio[stream]->length;
1949 // find audio astream/channels with this program,
1950 // or all program audio channels (astream=-1)
1951 int FFMPEG::ff_audio_for_video(int vstream, int astream, int64_t &channel_mask)
1955 int vidx = ffvideo[vstream]->idx;
1956 // find first program with this video stream
1957 for( int i=0; pidx<0 && i<(int)fmt_ctx->nb_programs; ++i ) {
1958 AVProgram *pgrm = fmt_ctx->programs[i];
1959 for( int j=0; pidx<0 && j<(int)pgrm->nb_stream_indexes; ++j ) {
1960 int st_idx = pgrm->stream_index[j];
1961 AVStream *st = fmt_ctx->streams[st_idx];
1962 if( st->codec->codec_type != AVMEDIA_TYPE_VIDEO ) continue;
1963 if( st_idx == vidx ) pidx = i;
1966 if( pidx < 0 ) return -1;
1968 int64_t channels = 0;
1969 AVProgram *pgrm = fmt_ctx->programs[pidx];
1970 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
1971 int aidx = pgrm->stream_index[j];
1972 AVStream *st = fmt_ctx->streams[aidx];
1973 if( st->codec->codec_type != AVMEDIA_TYPE_AUDIO ) continue;
1974 if( astream > 0 ) { --astream; continue; }
1976 for( int i=0; astrm<0 && i<ffaudio.size(); ++i )
1977 if( ffaudio[i]->idx == aidx ) astrm = i;
1979 if( ret < 0 ) ret = astrm;
1980 int64_t mask = (1 << ffaudio[astrm]->channels) - 1;
1981 channels |= mask << ffaudio[astrm]->channel0;
1983 if( !astream ) break;
1985 channel_mask = channels;
1990 int FFMPEG::ff_total_video_layers()
1992 return vstrm_index.size();
1995 int FFMPEG::ff_total_vstreams()
1997 return ffvideo.size();
2000 int FFMPEG::ff_video_width(int stream)
2002 return ffvideo[stream]->width;
2005 int FFMPEG::ff_video_height(int stream)
2007 return ffvideo[stream]->height;
2010 int FFMPEG::ff_set_video_width(int stream, int width)
2012 int w = ffvideo[stream]->width;
2013 ffvideo[stream]->width = width;
2017 int FFMPEG::ff_set_video_height(int stream, int height)
2019 int h = ffvideo[stream]->height;
2020 ffvideo[stream]->height = height;
2024 int FFMPEG::ff_coded_width(int stream)
2026 AVStream *st = ffvideo[stream]->st;
2027 return st->codec->coded_width;
2030 int FFMPEG::ff_coded_height(int stream)
2032 AVStream *st = ffvideo[stream]->st;
2033 return st->codec->coded_height;
2036 float FFMPEG::ff_aspect_ratio(int stream)
2038 return ffvideo[stream]->aspect_ratio;
2041 const char* FFMPEG::ff_video_format(int stream)
2043 AVStream *st = ffvideo[stream]->st;
2044 AVCodecID id = st->codec->codec_id;
2045 const AVCodecDescriptor *desc = avcodec_descriptor_get(id);
2046 return desc ? desc->name : "Unknown";
2049 double FFMPEG::ff_frame_rate(int stream)
2051 return ffvideo[stream]->frame_rate;
2054 int64_t FFMPEG::ff_video_frames(int stream)
2056 return ffvideo[stream]->length;
2059 int FFMPEG::ff_video_pid(int stream)
2061 return ffvideo[stream]->st->id;
2065 int FFMPEG::ff_cpus()
2067 return file_base->file->cpus;
2070 int FFVideoStream::create_filter(const char *filter_spec,
2071 AVCodecContext *src_ctx, AVCodecContext *sink_ctx)
2073 avfilter_register_all();
2074 AVFilter *filter = avfilter_get_by_name(filter_spec);
2075 if( !filter || filter->inputs->type != AVMEDIA_TYPE_VIDEO ) {
2076 ff_err(AVERROR(EINVAL), "FFVideoStream::create_filter: %s\n", filter_spec);
2079 filter_graph = avfilter_graph_alloc();
2080 AVFilter *buffersrc = avfilter_get_by_name("buffer");
2081 AVFilter *buffersink = avfilter_get_by_name("buffersink");
2083 int ret = 0; char args[BCTEXTLEN];
2084 snprintf(args, sizeof(args),
2085 "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
2086 src_ctx->width, src_ctx->height, src_ctx->pix_fmt,
2087 st->time_base.num, st->time_base.den,
2088 src_ctx->sample_aspect_ratio.num, src_ctx->sample_aspect_ratio.den);
2090 ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
2091 args, NULL, filter_graph);
2093 ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
2094 NULL, NULL, filter_graph);
2096 ret = av_opt_set_bin(buffersink_ctx, "pix_fmts",
2097 (uint8_t*)&sink_ctx->pix_fmt, sizeof(sink_ctx->pix_fmt),
2098 AV_OPT_SEARCH_CHILDREN);
2100 ff_err(ret, "FFVideoStream::create_filter");
2102 ret = FFStream::create_filter(filter_spec);
2103 return ret >= 0 ? 0 : 1;
2106 int FFAudioStream::create_filter(const char *filter_spec,
2107 AVCodecContext *src_ctx, AVCodecContext *sink_ctx)
2109 avfilter_register_all();
2110 AVFilter *filter = avfilter_get_by_name(filter_spec);
2111 if( !filter || filter->inputs->type != AVMEDIA_TYPE_AUDIO ) {
2112 ff_err(AVERROR(EINVAL), "FFAudioStream::create_filter: %s\n", filter_spec);
2115 filter_graph = avfilter_graph_alloc();
2116 AVFilter *buffersrc = avfilter_get_by_name("abuffer");
2117 AVFilter *buffersink = avfilter_get_by_name("abuffersink");
2118 int ret = 0; char args[BCTEXTLEN];
2119 snprintf(args, sizeof(args),
2120 "time_base=%d/%d:sample_rate=%d:sample_fmt=%s:channel_layout=0x%jx",
2121 st->time_base.num, st->time_base.den, src_ctx->sample_rate,
2122 av_get_sample_fmt_name(src_ctx->sample_fmt), src_ctx->channel_layout);
2124 ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
2125 args, NULL, filter_graph);
2127 ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
2128 NULL, NULL, filter_graph);
2130 ret = av_opt_set_bin(buffersink_ctx, "sample_fmts",
2131 (uint8_t*)&sink_ctx->sample_fmt, sizeof(sink_ctx->sample_fmt),
2132 AV_OPT_SEARCH_CHILDREN);
2134 ret = av_opt_set_bin(buffersink_ctx, "channel_layouts",
2135 (uint8_t*)&sink_ctx->channel_layout,
2136 sizeof(sink_ctx->channel_layout), AV_OPT_SEARCH_CHILDREN);
2138 ret = av_opt_set_bin(buffersink_ctx, "sample_rates",
2139 (uint8_t*)&sink_ctx->sample_rate, sizeof(sink_ctx->sample_rate),
2140 AV_OPT_SEARCH_CHILDREN);
2142 ff_err(ret, "FFAudioStream::create_filter");
2144 ret = FFStream::create_filter(filter_spec);
2145 return ret >= 0 ? 0 : 1;
2148 int FFStream::create_filter(const char *filter_spec)
2150 /* Endpoints for the filter graph. */
2151 AVFilterInOut *outputs = avfilter_inout_alloc();
2152 outputs->name = av_strdup("in");
2153 outputs->filter_ctx = buffersrc_ctx;
2154 outputs->pad_idx = 0;
2157 AVFilterInOut *inputs = avfilter_inout_alloc();
2158 inputs->name = av_strdup("out");
2159 inputs->filter_ctx = buffersink_ctx;
2160 inputs->pad_idx = 0;
2163 int ret = !outputs->name || !inputs->name ? -1 : 0;
2165 ret = avfilter_graph_parse_ptr(filter_graph, filter_spec,
2166 &inputs, &outputs, NULL);
2168 ret = avfilter_graph_config(filter_graph, NULL);
2171 ff_err(ret, "FFStream::create_filter");
2172 avfilter_inout_free(&inputs);
2173 avfilter_inout_free(&outputs);
2177 void FFStream::add_bsfilter(const char *bsf, const char *ap)
2179 bsfilter.append(new BSFilter(bsf,ap));
2182 int FFStream::bs_filter(AVPacket *pkt)
2184 if( !bsfilter.size() ) return 0;
2185 av_packet_split_side_data(pkt);
2188 for( int i=0; i<bsfilter.size(); ++i ) {
2189 AVPacket bspkt = *pkt;
2190 ret = av_bitstream_filter_filter(bsfilter[i]->bsfc,
2191 st->codec, bsfilter[i]->args, &bspkt.data, &bspkt.size,
2192 pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY);
2193 if( ret < 0 ) break;
2194 int size = bspkt.size;
2195 uint8_t *data = bspkt.data;
2196 if( !ret && bspkt.data != pkt->data ) {
2198 data = (uint8_t *)av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
2199 if( !data ) { ret = AVERROR(ENOMEM); break; }
2200 memcpy(data, bspkt.data, size);
2201 memset(data+size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
2205 pkt->side_data = 0; pkt->side_data_elems = 0;
2206 av_free_packet(pkt);
2207 ret = av_packet_from_data(&bspkt, data, size);
2208 if( ret < 0 ) break;
2213 ff_err(ret,"FFStream::bs_filter");