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 FFAudioStream::FFAudioStream(FFMPEG *ffmpeg, AVStream *strm, int idx)
413 : FFStream(ffmpeg, strm, idx)
415 channel0 = channels = 0;
418 seek_pos = curr_pos = 0;
420 resample_context = 0;
429 bfr = new float[bsz];
434 FFAudioStream::~FFAudioStream()
436 if( resample_context ) swr_free(&resample_context);
441 int FFAudioStream::load_history(uint8_t **data, int len)
443 float *samples = *(float **)data;
444 if( resample_context ) {
445 if( len > aud_bfr_sz ) {
451 aud_bfr = new float[aud_bfr_sz*channels];
453 int ret = swr_convert(resample_context,
454 (uint8_t**)&aud_bfr, aud_bfr_sz, (const uint8_t**)data, len);
456 ff_err(ret, "FFAudioStream::load_history: swr_convert failed\n");
462 // biggest user bfr since seek + frame
463 realloc(mbsz + len + 1, channels);
468 int FFAudioStream::decode_frame(AVFrame *frame, int &got_frame)
470 int ret = avcodec_decode_audio4(st->codec, frame, &got_frame, ipkt);
472 ff_err(ret, "FFAudioStream::decode_frame: Could not read audio frame\n");
478 int FFAudioStream::encode_activate()
480 if( writing >= 0 ) return writing;
481 AVCodecContext *ctx = st->codec;
482 frame_sz = ctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE ?
483 10000 : ctx->frame_size;
484 return FFStream::encode_activate();
487 int FFAudioStream::nb_samples()
489 AVCodecContext *ctx = st->codec;
490 return ctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE ?
491 10000 : ctx->frame_size;
494 int64_t FFAudioStream::load_buffer(double ** const sp, int len)
496 reserve(len+1, st->codec->channels);
497 for( int ch=0; ch<nch; ++ch )
498 write(sp[ch], len, ch);
502 int FFAudioStream::in_history(int64_t pos)
504 if( pos > curr_pos ) return 0;
505 int64_t len = curr_pos - seek_pos;
506 if( len > sz ) len = sz;
507 if( pos < curr_pos - len ) return 0;
512 int FFAudioStream::init_frame(AVFrame *frame)
514 AVCodecContext *ctx = st->codec;
515 frame->nb_samples = frame_sz;
516 frame->format = ctx->sample_fmt;
517 frame->channel_layout = ctx->channel_layout;
518 frame->sample_rate = ctx->sample_rate;
519 int ret = av_frame_get_buffer(frame, 0);
521 ff_err(ret, "FFAudioStream::init_frame: av_frame_get_buffer failed\n");
525 int FFAudioStream::load(int64_t pos, int len)
527 if( audio_seek(pos) < 0 ) return -1;
528 if( mbsz < len ) mbsz = len;
530 int64_t end_pos = pos + len;
531 if( !frame && !(frame=av_frame_alloc()) ) {
532 fprintf(stderr, "FFAudioStream::load: av_frame_alloc failed\n");
535 for( int i=0; ret>=0 && !flushed && curr_pos<end_pos && i<1000; ++i ) {
536 ret = read_frame(frame);
538 load_history(&frame->extended_data[0], frame->nb_samples);
539 curr_pos += frame->nb_samples;
542 if( end_pos > curr_pos ) {
543 zero(end_pos - curr_pos);
546 return curr_pos - pos;
549 int FFAudioStream::audio_seek(int64_t pos)
551 if( decode_activate() < 0 ) return -1;
552 if( in_history(pos) ) {
553 iseek(curr_pos - pos);
556 if( pos == curr_pos ) return 0;
557 if( !st->codec || !st->codec->codec ) return -1;
558 avcodec_flush_buffers(st->codec);
559 double secs = (double)pos / sample_rate;
560 int64_t tstmp = secs * st->time_base.den / st->time_base.num;
561 if( nudge != AV_NOPTS_VALUE ) tstmp += nudge;
562 avformat_seek_file(fmt_ctx, st->index, -INT64_MAX, tstmp, INT64_MAX, 0);
563 seek_pos = curr_pos = pos;
565 mbsz = 0; flushed = 0; need_packet = 1;
569 int FFAudioStream::encode(double **samples, int len)
571 if( encode_activate() <= 0 ) return -1;
574 int64_t count = load_buffer(samples, len);
577 while( ret >= 0 && count >= frame_sz ) {
578 frm = new FFrame(this);
579 if( (ret=frm->initted()) < 0 ) break;
580 AVFrame *frame = *frm;
581 float *bfrp = get_outp(frame_sz);
582 ret = swr_convert(resample_context,
583 (uint8_t **)frame->extended_data, frame_sz,
584 (const uint8_t **)&bfrp, frame_sz);
586 ff_err(ret, "FFAudioStream::encode: swr_convert failed\n");
589 frm->queue(curr_pos);
591 curr_pos += frame_sz;
596 return ret >= 0 ? 0 : 1;
599 FFVideoStream::FFVideoStream(FFMPEG *ffmpeg, AVStream *strm, int idx)
600 : FFStream(ffmpeg, strm, idx)
605 seek_pos = curr_pos = 0;
610 FFVideoStream::~FFVideoStream()
612 if( convert_ctx ) sws_freeContext(convert_ctx);
615 int FFVideoStream::decode_frame(AVFrame *frame, int &got_frame)
617 int ret = avcodec_decode_video2(st->codec, frame, &got_frame, ipkt);
619 ff_err(ret, "FFVideoStream::decode_frame: Could not read video frame\n");
627 int FFVideoStream::load(VFrame *vframe, int64_t pos)
629 if( video_seek(pos) < 0 ) return -1;
630 if( !frame && !(frame=av_frame_alloc()) ) {
631 fprintf(stderr, "FFVideoStream::load: av_frame_alloc failed\n");
635 for( int i=0; ret>=0 && !flushed && curr_pos<=pos && i<1000; ++i ) {
636 ret = read_frame(frame);
639 AVCodecContext *ctx = st->codec;
640 ret = convert_cmodel(vframe, (AVPicture *)frame,
641 ctx->pix_fmt, ctx->width, ctx->height);
643 ret = ret > 0 ? 1 : ret < 0 ? -1 : 0;
647 int FFVideoStream::video_seek(int64_t pos)
649 if( decode_activate() < 0 ) return -1;
650 // if close enough, just read up to current
651 // 3*gop_size seems excessive, but less causes tears
652 int gop = 3*st->codec->gop_size;
653 if( gop < 4 ) gop = 4;
654 if( gop > 64 ) gop = 64;
655 if( pos >= curr_pos && pos <= curr_pos + gop ) return 0;
656 if( pos == curr_pos-1 && curr_pos > seek_pos ) return 0;
657 if( !st->codec || !st->codec->codec ) return -1;
658 avcodec_flush_buffers(st->codec);
659 // back up a few frames to read up to current to help repair damages
660 if( (pos-=gop) < 0 ) pos = 0;
661 double secs = (double)pos / frame_rate;
662 int64_t tstmp = secs * st->time_base.den / st->time_base.num;
663 if( nudge != AV_NOPTS_VALUE ) tstmp += nudge;
664 avformat_seek_file(fmt_ctx, st->index, -INT64_MAX, tstmp, INT64_MAX, 0);
665 seek_pos = curr_pos = pos;
667 flushed = 0; need_packet = 1;
671 int FFVideoStream::init_frame(AVFrame *picture)
673 AVCodecContext *ctx = st->codec;
674 picture->format = ctx->pix_fmt;
675 picture->width = ctx->width;
676 picture->height = ctx->height;
677 int ret = av_frame_get_buffer(picture, 32);
681 int FFVideoStream::encode(VFrame *vframe)
683 if( encode_activate() <= 0 ) return -1;
685 FFrame *picture = new FFrame(this);
686 int ret = picture->initted();
688 AVFrame *frame = *picture;
689 frame->pts = curr_pos;
690 AVCodecContext *ctx = st->codec;
691 ret = convert_pixfmt(vframe, (AVPicture*)frame,
692 ctx->pix_fmt, ctx->width, ctx->height);
695 picture->queue(curr_pos);
699 fprintf(stderr, "FFVideoStream::encode: encode failed\n");
702 return ret >= 0 ? 0 : 1;
706 PixelFormat FFVideoStream::color_model_to_pix_fmt(int color_model)
708 switch( color_model ) {
709 case BC_YUV422: return AV_PIX_FMT_YUYV422;
710 case BC_RGB888: return AV_PIX_FMT_RGB24;
711 case BC_RGBA8888: return AV_PIX_FMT_RGBA;
712 case BC_BGR8888: return AV_PIX_FMT_BGR0;
713 case BC_BGR888: return AV_PIX_FMT_BGR24;
714 case BC_YUV420P: return AV_PIX_FMT_YUV420P;
715 case BC_YUV422P: return AV_PIX_FMT_YUV422P;
716 case BC_YUV444P: return AV_PIX_FMT_YUV444P;
717 case BC_YUV411P: return AV_PIX_FMT_YUV411P;
718 case BC_RGB565: return AV_PIX_FMT_RGB565;
719 case BC_RGB161616: return AV_PIX_FMT_RGB48LE;
720 case BC_RGBA16161616: return AV_PIX_FMT_RGBA64LE;
724 return AV_PIX_FMT_NB;
727 int FFVideoStream::pix_fmt_to_color_model(PixelFormat pix_fmt)
730 case AV_PIX_FMT_YUYV422: return BC_YUV422;
731 case AV_PIX_FMT_RGB24: return BC_RGB888;
732 case AV_PIX_FMT_RGBA: return BC_RGBA8888;
733 case AV_PIX_FMT_BGR0: return BC_BGR8888;
734 case AV_PIX_FMT_BGR24: return BC_BGR888;
735 case AV_PIX_FMT_YUV420P: return BC_YUV420P;
736 case AV_PIX_FMT_YUV422P: return BC_YUV422P;
737 case AV_PIX_FMT_YUV444P: return BC_YUV444P;
738 case AV_PIX_FMT_YUV411P: return BC_YUV411P;
739 case AV_PIX_FMT_RGB565: return BC_RGB565;
740 case AV_PIX_FMT_RGB48LE: return BC_RGB161616;
741 case AV_PIX_FMT_RGBA64LE: return BC_RGBA16161616;
745 return BC_TRANSPARENCY;
748 int FFVideoStream::convert_picture_vframe(VFrame *frame,
749 AVPicture *ip, PixelFormat ifmt, int iw, int ih)
752 int cmodel = frame->get_color_model();
753 PixelFormat ofmt = color_model_to_pix_fmt(cmodel);
754 if( ofmt == AV_PIX_FMT_NB ) return -1;
755 int size = avpicture_fill(&opic, frame->get_data(), ofmt,
756 frame->get_w(), frame->get_h());
757 if( size < 0 ) return -1;
759 // transfer line sizes must match also
760 int planar = BC_CModels::is_planar(cmodel);
761 int packed_width = !planar ? frame->get_bytes_per_line() :
762 BC_CModels::calculate_pixelsize(cmodel) * frame->get_w();
763 if( packed_width != opic.linesize[0] ) return -1;
766 // override avpicture_fill() for planar types
767 opic.data[0] = frame->get_y();
768 opic.data[1] = frame->get_u();
769 opic.data[2] = frame->get_v();
772 convert_ctx = sws_getCachedContext(convert_ctx, iw, ih, ifmt,
773 frame->get_w(), frame->get_h(), ofmt, SWS_BICUBIC, NULL, NULL, NULL);
775 fprintf(stderr, "FFVideoStream::convert_picture_frame:"
776 " sws_getCachedContext() failed\n");
779 int ret = sws_scale(convert_ctx, ip->data, ip->linesize, 0, ih,
780 opic.data, opic.linesize);
782 ff_err(ret, "FFVideoStream::convert_picture_frame: sws_scale() failed\n");
788 int FFVideoStream::convert_cmodel(VFrame *frame,
789 AVPicture *ip, PixelFormat ifmt, int iw, int ih)
791 // try direct transfer
792 if( !convert_picture_vframe(frame, ip, ifmt, iw, ih) ) return 1;
793 // use indirect transfer
794 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(ifmt);
796 for( int i = 0; i <desc->nb_components; ++i ) {
797 int bits = desc->comp[i].depth_minus1 + 1;
798 if( bits > max_bits ) max_bits = bits;
800 // from libavcodec/pixdesc.c
801 #define pixdesc_has_alpha(pixdesc) ((pixdesc)->nb_components == 2 || \
802 (pixdesc)->nb_components == 4 || (pixdesc)->flags & AV_PIX_FMT_FLAG_PAL)
803 int icolor_model = pixdesc_has_alpha(desc) ?
804 (max_bits > 8 ? BC_RGBA16161616 : BC_RGBA8888) :
805 (max_bits > 8 ? BC_RGB161616 : BC_RGB888) ;
806 VFrame vframe(iw, ih, icolor_model);
807 if( convert_picture_vframe(&vframe, ip, ifmt, iw, ih) ) return -1;
808 frame->transfer_from(&vframe);
812 int FFVideoStream::convert_vframe_picture(VFrame *frame,
813 AVPicture *op, PixelFormat ofmt, int ow, int oh)
816 int cmodel = frame->get_color_model();
817 PixelFormat ifmt = color_model_to_pix_fmt(cmodel);
818 if( ifmt == AV_PIX_FMT_NB ) return -1;
819 int size = avpicture_fill(&opic, frame->get_data(), ifmt,
820 frame->get_w(), frame->get_h());
821 if( size < 0 ) return -1;
823 // transfer line sizes must match also
824 int planar = BC_CModels::is_planar(cmodel);
825 int packed_width = !planar ? frame->get_bytes_per_line() :
826 BC_CModels::calculate_pixelsize(cmodel) * frame->get_w();
827 if( packed_width != opic.linesize[0] ) return -1;
830 // override avpicture_fill() for planar types
831 opic.data[0] = frame->get_y();
832 opic.data[1] = frame->get_u();
833 opic.data[2] = frame->get_v();
836 convert_ctx = sws_getCachedContext(convert_ctx, frame->get_w(), frame->get_h(), ifmt,
837 ow, oh, ofmt, SWS_BICUBIC, NULL, NULL, NULL);
839 fprintf(stderr, "FFVideoStream::convert_frame_picture:"
840 " sws_getCachedContext() failed\n");
843 int ret = sws_scale(convert_ctx, opic.data, opic.linesize, 0, frame->get_h(),
844 op->data, op->linesize);
846 ff_err(ret, "FFVideoStream::convert_frame_picture: sws_scale() failed\n");
852 int FFVideoStream::convert_pixfmt(VFrame *frame,
853 AVPicture *op, PixelFormat ofmt, int ow, int oh)
855 // try direct transfer
856 if( !convert_vframe_picture(frame, op, ofmt, ow, oh) ) return 0;
857 // use indirect transfer
858 int colormodel = frame->get_color_model();
859 int bits = BC_CModels::calculate_pixelsize(colormodel) * 8;
860 bits /= BC_CModels::components(colormodel);
861 int icolor_model = BC_CModels::has_alpha(colormodel) ?
862 (bits > 8 ? BC_RGBA16161616 : BC_RGBA8888) :
863 (bits > 8 ? BC_RGB161616: BC_RGB888) ;
864 VFrame vframe(frame->get_w(), frame->get_h(), icolor_model);
865 vframe.transfer_from(frame);
866 if( convert_vframe_picture(&vframe, op, ofmt, ow, oh) ) return 1;
871 FFMPEG::FFMPEG(FileBase *file_base)
874 this->file_base = file_base;
875 memset(file_format,0,sizeof(file_format));
876 mux_lock = new Condition(0,"FFMPEG::mux_lock",0);
877 flow_lock = new Condition(1,"FFStream::flow_lock",0);
880 decoding = encoding = 0;
881 has_audio = has_video = 0;
884 opt_video_filter = 0;
885 opt_audio_filter = 0;
886 char option_path[BCTEXTLEN];
887 set_option_path(option_path, "%s", "ffmpeg.opts");
888 read_options(option_path, opts);
893 ff_lock("FFMPEG::~FFMPEG()");
895 ffaudio.remove_all_objects();
896 ffvideo.remove_all_objects();
897 if( encoding ) avformat_free_context(fmt_ctx);
902 delete opt_video_filter;
903 delete opt_audio_filter;
906 int FFMPEG::check_sample_rate(AVCodec *codec, int sample_rate)
908 const int *p = codec->supported_samplerates;
909 if( !p ) return sample_rate;
911 if( *p == sample_rate ) return *p;
917 static inline AVRational std_frame_rate(int i)
919 static const int m1 = 1001*12, m2 = 1000*12;
920 static const int freqs[] = {
921 40*m1, 48*m1, 50*m1, 60*m1, 80*m1,120*m1, 240*m1,
922 24*m2, 30*m2, 60*m2, 12*m2, 15*m2, 48*m2, 0,
924 int freq = i<30*12 ? (i+1)*1001 : freqs[i-30*12];
925 return (AVRational) { freq, 1001*12 };
928 AVRational FFMPEG::check_frame_rate(AVCodec *codec, double frame_rate)
930 const AVRational *p = codec->supported_framerates;
931 AVRational rate, best_rate = (AVRational) { 0, 0 };
932 double max_err = 1.; int i = 0;
933 while( ((p ? (rate=*p++) : (rate=std_frame_rate(i++))), rate.num) != 0 ) {
934 double framerate = (double) rate.num / rate.den;
935 double err = fabs(frame_rate/framerate - 1.);
936 if( err >= max_err ) continue;
940 return max_err < 0.0001 ? best_rate : (AVRational) { 0, 0 };
943 AVRational FFMPEG::to_sample_aspect_ratio(double aspect_ratio)
946 int height = 1000000, width = height * aspect_ratio;
948 MWindow::create_aspect_ratio(w, h, width, height);
949 return (AVRational){(int)w, (int)h};
952 return (AVRational){1, 1};
956 AVRational FFMPEG::to_time_base(int sample_rate)
958 return (AVRational){1, sample_rate};
961 extern void get_exe_path(char *result); // from main.C
963 void FFMPEG::set_option_path(char *path, const char *fmt, ...)
966 strcat(path, "/ffmpeg/");
967 path += strlen(path);
970 vsprintf(path, fmt, ap);
974 void FFMPEG::get_option_path(char *path, const char *type, const char *spec)
979 set_option_path(path, "%s/%s", type, spec);
982 int FFMPEG::get_format(char *format, const char *path, char *spec)
984 char option_path[BCTEXTLEN], line[BCTEXTLEN], codec[BCTEXTLEN];
985 get_option_path(option_path, path, spec);
986 FILE *fp = fopen(option_path,"r");
989 if( !fgets(line, sizeof(line), fp) ) ret = 1;
991 line[sizeof(line)-1] = 0;
992 ret = scan_option_line(line, format, codec);
998 int FFMPEG::get_file_format()
1001 char audio_format[BCSTRLEN], video_format[BCSTRLEN];
1002 file_format[0] = audio_format[0] = video_format[0] = 0;
1003 Asset *asset = file_base->asset;
1004 if( !ret && asset->audio_data )
1005 ret = get_format(audio_format, "audio", asset->acodec);
1006 if( !ret && asset->video_data )
1007 ret = get_format(video_format, "video", asset->vcodec);
1008 if( !ret && !audio_format[0] && !video_format[0] )
1010 if( !ret && audio_format[0] && video_format[0] &&
1011 strcmp(audio_format, video_format) ) ret = -1;
1013 strcpy(file_format, audio_format[0] ? audio_format : video_format);
1017 int FFMPEG::scan_option_line(char *cp, char *tag, char *val)
1019 while( *cp == ' ' || *cp == '\t' ) ++cp;
1021 while( *cp && *cp != ' ' && *cp != '\t' && *cp != '=' ) ++cp;
1023 if( !len || len > BCSTRLEN-1 ) return 1;
1024 while( bp < cp ) *tag++ = *bp++;
1026 while( *cp == ' ' || *cp == '\t' ) ++cp;
1027 if( *cp == '=' ) ++cp;
1028 while( *cp == ' ' || *cp == '\t' ) ++cp;
1030 while( *cp && *cp != '\n' ) ++cp;
1032 if( len > BCTEXTLEN-1 ) return 1;
1033 while( bp < cp ) *val++ = *bp++;
1038 int FFMPEG::get_encoder(const char *options,
1039 char *format, char *codec, char *bsfilter, char *bsargs)
1041 FILE *fp = fopen(options,"r");
1043 eprintf("FFMPEG::get_encoder: options open failed %s\n",options);
1046 if( get_encoder(fp, format, codec, bsfilter, bsargs) )
1047 eprintf(_("FFMPEG::get_encoder:"
1048 " err: format/codec not found %s\n"), options);
1053 int FFMPEG::get_encoder(FILE *fp,
1054 char *format, char *codec, char *bsfilter, char *bsargs)
1056 format[0] = codec[0] = bsfilter[0] = bsargs[0] = 0;
1057 char line[BCTEXTLEN];
1058 if( !fgets(line, sizeof(line), fp) ) return 1;
1059 line[sizeof(line)-1] = 0;
1060 if( scan_option_line(line, format, codec) ) return 1;
1062 while( *cp && *cp != '|' ) ++cp;
1063 if( !*cp ) return 0;
1064 if( scan_option_line(cp+1, bsfilter, bsargs) ) return 1;
1065 do { *cp-- = 0; } while( cp>=codec && (*cp==' ' || *cp == '\t' ) );
1069 int FFMPEG::read_options(const char *options, AVDictionary *&opts)
1071 FILE *fp = fopen(options,"r");
1073 int ret = read_options(fp, options, opts);
1078 int FFMPEG::scan_options(const char *options, AVDictionary *&opts)
1080 FILE *fp = fmemopen((void *)options,strlen(options),"r");
1082 int ret = read_options(fp, options, opts);
1087 int FFMPEG::read_options(FILE *fp, const char *options, AVDictionary *&opts)
1089 int ret = 0, no = 0;
1090 char line[BCTEXTLEN];
1091 while( !ret && fgets(line, sizeof(line), fp) ) {
1092 line[sizeof(line)-1] = 0;
1094 if( line[0] == '#' ) continue;
1095 if( line[0] == '\n' ) continue;
1096 char key[BCSTRLEN], val[BCTEXTLEN];
1097 if( scan_option_line(line, key, val) ) {
1098 eprintf(_("FFMPEG::read_options:"
1099 " err reading %s: line %d\n"), options, no);
1103 if( !strcmp(key, "duration") )
1104 opt_duration = strtod(val, 0);
1105 if( !strcmp(key, "video_filter") )
1106 opt_video_filter = cstrdup(val);
1107 if( !strcmp(key, "audio_filter") )
1108 opt_audio_filter = cstrdup(val);
1109 else if( !strcmp(key, "loglevel") )
1112 av_dict_set(&opts, key, val, 0);
1118 int FFMPEG::load_options(const char *options, AVDictionary *&opts)
1120 char option_path[BCTEXTLEN];
1121 set_option_path(option_path, "%s", options);
1122 return read_options(option_path, opts);
1125 int FFMPEG::load_options(const char *path, char *bfr, int len)
1128 FILE *fp = fopen(path, "r");
1130 fgets(bfr, len, fp); // skip hdr
1131 len = fread(bfr, 1, len-1, fp);
1132 if( len < 0 ) len = 0;
1138 void FFMPEG::set_loglevel(const char *ap)
1140 if( !ap || !*ap ) return;
1145 { "quiet" , AV_LOG_QUIET },
1146 { "panic" , AV_LOG_PANIC },
1147 { "fatal" , AV_LOG_FATAL },
1148 { "error" , AV_LOG_ERROR },
1149 { "warning", AV_LOG_WARNING },
1150 { "info" , AV_LOG_INFO },
1151 { "verbose", AV_LOG_VERBOSE },
1152 { "debug" , AV_LOG_DEBUG },
1154 for( int i=0; i<(int)(sizeof(log_levels)/sizeof(log_levels[0])); ++i ) {
1155 if( !strcmp(log_levels[i].name, ap) ) {
1156 av_log_set_level(log_levels[i].level);
1160 av_log_set_level(atoi(ap));
1163 double FFMPEG::to_secs(int64_t time, AVRational time_base)
1165 double base_time = time == AV_NOPTS_VALUE ? 0 :
1166 av_rescale_q(time, time_base, AV_TIME_BASE_Q);
1167 return base_time / AV_TIME_BASE;
1170 int FFMPEG::info(char *text, int len)
1172 if( len <= 0 ) return 0;
1173 #define report(s...) do { int n = snprintf(cp,len,s); cp += n; len -= n; } while(0)
1175 for( int i=0; i<(int)fmt_ctx->nb_streams; ++i ) {
1176 AVStream *st = fmt_ctx->streams[i];
1177 AVCodecContext *avctx = st->codec;
1178 report(_("stream %d, id 0x%06x:\n"), i, avctx->codec_id);
1179 const AVCodecDescriptor *desc = avcodec_descriptor_get(avctx->codec_id);
1180 if( avctx->codec_type == AVMEDIA_TYPE_VIDEO ) {
1181 AVRational framerate = av_guess_frame_rate(fmt_ctx, st, 0);
1182 double frame_rate = !framerate.den ? 0 : (double)framerate.num / framerate.den;
1183 report(" video %s",desc ? desc->name : " (unkn)");
1184 report(" %dx%d %5.2f", avctx->width, avctx->height, frame_rate);
1185 const char *pfn = av_get_pix_fmt_name(avctx->pix_fmt);
1186 report(" pix %s\n", pfn ? pfn : "(unkn)");
1187 double secs = to_secs(st->duration, st->time_base);
1188 int64_t length = secs * frame_rate + 0.5;
1189 report(" %jd frms %0.2f secs", length, secs);
1190 int hrs = secs/3600; secs -= hrs*3600;
1191 int mins = secs/60; secs -= mins*60;
1192 report(" %d:%02d:%05.2f\n", hrs, mins, secs);
1195 else if( avctx->codec_type == AVMEDIA_TYPE_AUDIO ) {
1196 int sample_rate = avctx->sample_rate;
1197 const char *fmt = av_get_sample_fmt_name(avctx->sample_fmt);
1198 report(" audio %s",desc ? desc->name : " (unkn)");
1199 report(" %dch %s %d",avctx->channels, fmt, sample_rate);
1200 int sample_bits = av_get_bits_per_sample(avctx->codec_id);
1201 report(" %dbits\n", sample_bits);
1202 double secs = to_secs(st->duration, st->time_base);
1203 int64_t length = secs * sample_rate + 0.5;
1204 report(" %jd smpl %0.2f secs", length, secs);
1205 int hrs = secs/3600; secs -= hrs*3600;
1206 int mins = secs/60; secs -= mins*60;
1207 report(" %d:%02d:%05.2f\n", hrs, mins, secs);
1210 report(_(" codec_type unknown\n"));
1213 for( int i=0; i<(int)fmt_ctx->nb_programs; ++i ) {
1214 report("program %d", i+1);
1215 AVProgram *pgrm = fmt_ctx->programs[i];
1216 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j )
1217 report(", %d", pgrm->stream_index[j]);
1221 AVDictionaryEntry *tag = 0;
1222 while ((tag = av_dict_get(fmt_ctx->metadata, "", tag, AV_DICT_IGNORE_SUFFIX)))
1223 report("%s=%s\n", tag->key, tag->value);
1232 int FFMPEG::init_decoder(const char *filename)
1234 ff_lock("FFMPEG::init_decoder");
1236 char file_opts[BCTEXTLEN];
1237 char *bp = strrchr(strcpy(file_opts, filename), '/');
1238 char *sp = strrchr(!bp ? file_opts : bp, '.');
1241 strcpy(sp, ".opts");
1242 fp = fopen(file_opts, "r");
1245 read_options(fp, file_opts, opts);
1249 load_options("decode.opts", opts);
1250 AVDictionary *fopts = 0;
1251 av_dict_copy(&fopts, opts, 0);
1252 int ret = avformat_open_input(&fmt_ctx, filename, NULL, &fopts);
1253 av_dict_free(&fopts);
1255 ret = avformat_find_stream_info(fmt_ctx, NULL);
1260 return !ret ? 0 : 1;
1263 int FFMPEG::open_decoder()
1266 if( stat(fmt_ctx->filename, &st) < 0 ) {
1267 eprintf("FFMPEG::open_decoder: can't stat file: %s\n",
1272 int64_t file_bits = 8 * st.st_size;
1273 if( !fmt_ctx->bit_rate && opt_duration > 0 )
1274 fmt_ctx->bit_rate = file_bits / opt_duration;
1277 if( fmt_ctx->bit_rate > 0 ) {
1278 for( int i=0; i<(int)fmt_ctx->nb_streams; ++i ) {
1279 AVStream *st = fmt_ctx->streams[i];
1280 if( st->duration != AV_NOPTS_VALUE ) continue;
1281 if( st->time_base.num > INT64_MAX / fmt_ctx->bit_rate ) continue;
1282 st->duration = av_rescale(file_bits, st->time_base.den,
1283 fmt_ctx->bit_rate * (int64_t) st->time_base.num);
1288 printf("FFMPEG::open_decoder: some stream times estimated\n");
1290 ff_lock("FFMPEG::open_decoder");
1292 for( int i=0; i<(int)fmt_ctx->nb_streams; ++i ) {
1293 AVStream *st = fmt_ctx->streams[i];
1294 if( st->duration == AV_NOPTS_VALUE ) bad_time = 1;
1295 AVCodecContext *avctx = st->codec;
1296 if( avctx->codec_type == AVMEDIA_TYPE_VIDEO ) {
1298 FFVideoStream *vid = new FFVideoStream(this, st, i);
1299 int vidx = ffvideo.size();
1300 vstrm_index.append(ffidx(vidx, 0));
1301 ffvideo.append(vid);
1302 vid->width = avctx->width;
1303 vid->height = avctx->height;
1304 AVRational framerate = av_guess_frame_rate(fmt_ctx, st, 0);
1305 vid->frame_rate = !framerate.den ? 0 : (double)framerate.num / framerate.den;
1306 double secs = to_secs(st->duration, st->time_base);
1307 vid->length = secs * vid->frame_rate;
1308 vid->aspect_ratio = (double)st->sample_aspect_ratio.num / st->sample_aspect_ratio.den;
1309 vid->nudge = st->start_time;
1311 if( opt_video_filter )
1312 vid->create_filter(opt_video_filter, avctx,avctx);
1314 else if( avctx->codec_type == AVMEDIA_TYPE_AUDIO ) {
1316 FFAudioStream *aud = new FFAudioStream(this, st, i);
1317 int aidx = ffaudio.size();
1318 ffaudio.append(aud);
1319 aud->channel0 = astrm_index.size();
1320 aud->channels = avctx->channels;
1321 for( int ch=0; ch<aud->channels; ++ch )
1322 astrm_index.append(ffidx(aidx, ch));
1323 aud->sample_rate = avctx->sample_rate;
1324 double secs = to_secs(st->duration, st->time_base);
1325 aud->length = secs * aud->sample_rate;
1326 if( avctx->sample_fmt != AV_SAMPLE_FMT_FLT ) {
1327 uint64_t layout = av_get_default_channel_layout(avctx->channels);
1328 if( !layout ) layout = ((uint64_t)1<<aud->channels) - 1;
1329 aud->resample_context = swr_alloc_set_opts(NULL,
1330 layout, AV_SAMPLE_FMT_FLT, avctx->sample_rate,
1331 layout, avctx->sample_fmt, avctx->sample_rate,
1333 swr_init(aud->resample_context);
1335 aud->nudge = st->start_time;
1337 if( opt_audio_filter )
1338 aud->create_filter(opt_audio_filter, avctx,avctx);
1342 printf("FFMPEG::open_decoder: some stream have bad times\n");
1348 int FFMPEG::init_encoder(const char *filename)
1350 int fd = ::open(filename,O_WRONLY);
1351 if( fd < 0 ) fd = open(filename,O_WRONLY+O_CREAT,0666);
1353 eprintf("FFMPEG::init_encoder: bad file path: %s\n", filename);
1357 int ret = get_file_format();
1359 eprintf("FFMPEG::init_encoder: bad file format: %s\n", filename);
1363 eprintf("FFMPEG::init_encoder: mismatch audio/video file format: %s\n", filename);
1366 ff_lock("FFMPEG::init_encoder");
1368 avformat_alloc_output_context2(&fmt_ctx, 0, file_format, filename);
1370 eprintf("FFMPEG::init_encoder: failed: %s\n", filename);
1375 load_options("encode.opts", opts);
1382 int FFMPEG::open_encoder(const char *type, const char *spec)
1385 Asset *asset = file_base->asset;
1386 char *filename = asset->path;
1387 AVDictionary *sopts = 0;
1388 av_dict_copy(&sopts, opts, 0);
1389 char option_path[BCTEXTLEN];
1390 set_option_path(option_path, "%s/%s.opts", type, type);
1391 read_options(option_path, sopts);
1392 get_option_path(option_path, type, spec);
1393 char format_name[BCSTRLEN], codec_name[BCTEXTLEN];
1394 char bsfilter[BCSTRLEN], bsargs[BCTEXTLEN];
1395 if( get_encoder(option_path, format_name, codec_name, bsfilter, bsargs) ) {
1396 eprintf("FFMPEG::open_encoder: get_encoder failed %s:%s\n",
1397 option_path, filename);
1402 ff_lock("FFMPEG::open_encoder");
1406 const AVCodecDescriptor *codec_desc = 0;
1407 AVCodec *codec = avcodec_find_encoder_by_name(codec_name);
1409 eprintf("FFMPEG::open_encoder: cant find codec %s:%s\n",
1410 codec_name, filename);
1414 codec_desc = avcodec_descriptor_get(codec->id);
1416 eprintf("FFMPEG::open_encoder: unknown codec %s:%s\n",
1417 codec_name, filename);
1422 st = avformat_new_stream(fmt_ctx, 0);
1424 eprintf("FFMPEG::open_encoder: cant create stream %s:%s\n",
1425 codec_name, filename);
1430 AVCodecContext *ctx = st->codec;
1431 switch( codec_desc->type ) {
1432 case AVMEDIA_TYPE_AUDIO: {
1434 eprintf("FFMPEG::open_encoder: duplicate audio %s:%s\n",
1435 codec_name, filename);
1440 if( scan_options(asset->ff_audio_options, sopts) ) {
1441 eprintf("FFMPEG::open_encoder: bad audio options %s:%s\n",
1442 codec_name, filename);
1446 if( asset->ff_audio_bitrate > 0 ) {
1447 ctx->bit_rate = asset->ff_audio_bitrate;
1449 sprintf(arg, "%d", asset->ff_audio_bitrate);
1450 av_dict_set(&sopts, "b", arg, 0);
1452 int aidx = ffaudio.size();
1453 int idx = aidx + ffvideo.size();
1454 FFAudioStream *aud = new FFAudioStream(this, st, idx);
1455 ffaudio.append(aud); fst = aud;
1456 aud->sample_rate = asset->sample_rate;
1457 ctx->channels = aud->channels = asset->channels;
1458 for( int ch=0; ch<aud->channels; ++ch )
1459 astrm_index.append(ffidx(aidx, ch));
1460 ctx->channel_layout = av_get_default_channel_layout(ctx->channels);
1461 ctx->sample_rate = check_sample_rate(codec, asset->sample_rate);
1462 if( !ctx->sample_rate ) {
1463 eprintf("FFMPEG::open_audio_encode:"
1464 " check_sample_rate failed %s\n", filename);
1468 ctx->time_base = st->time_base = (AVRational){1, aud->sample_rate};
1469 ctx->sample_fmt = codec->sample_fmts[0];
1470 uint64_t layout = av_get_default_channel_layout(ctx->channels);
1471 aud->resample_context = swr_alloc_set_opts(NULL,
1472 layout, ctx->sample_fmt, aud->sample_rate,
1473 layout, AV_SAMPLE_FMT_FLT, ctx->sample_rate,
1475 swr_init(aud->resample_context);
1478 case AVMEDIA_TYPE_VIDEO: {
1480 eprintf("FFMPEG::open_encoder: duplicate video %s:%s\n",
1481 codec_name, filename);
1486 if( scan_options(asset->ff_video_options, sopts) ) {
1487 eprintf("FFMPEG::open_encoder: bad video options %s:%s\n",
1488 codec_name, filename);
1492 if( asset->ff_video_bitrate > 0 ) {
1493 ctx->bit_rate = asset->ff_video_bitrate;
1495 sprintf(arg, "%d", asset->ff_video_bitrate);
1496 av_dict_set(&sopts, "b", arg, 0);
1498 else if( asset->ff_video_quality > 0 ) {
1499 ctx->global_quality = asset->ff_video_quality * FF_QP2LAMBDA;
1500 ctx->qmin = ctx->qmax = asset->ff_video_quality;
1501 ctx->mb_lmin = ctx->qmin * FF_QP2LAMBDA;
1502 ctx->mb_lmax = ctx->qmax * FF_QP2LAMBDA;
1503 ctx->flags |= CODEC_FLAG_QSCALE;
1505 av_dict_set(&sopts, "flags", "+qscale", 0);
1506 sprintf(arg, "%d", asset->ff_video_quality);
1507 av_dict_set(&sopts, "qscale", arg, 0);
1508 sprintf(arg, "%d", ctx->global_quality);
1509 av_dict_set(&sopts, "global_quality", arg, 0);
1511 int vidx = ffvideo.size();
1512 int idx = vidx + ffaudio.size();
1513 FFVideoStream *vid = new FFVideoStream(this, st, idx);
1514 vstrm_index.append(ffidx(vidx, 0));
1515 ffvideo.append(vid); fst = vid;
1516 vid->width = asset->width;
1517 ctx->width = (vid->width+3) & ~3;
1518 vid->height = asset->height;
1519 ctx->height = (vid->height+3) & ~3;
1520 vid->frame_rate = asset->frame_rate;
1521 ctx->sample_aspect_ratio = to_sample_aspect_ratio(asset->aspect_ratio);
1522 ctx->pix_fmt = codec->pix_fmts ? codec->pix_fmts[0] : AV_PIX_FMT_YUV420P;
1523 AVRational frame_rate = check_frame_rate(codec, vid->frame_rate);
1524 if( !frame_rate.num || !frame_rate.den ) {
1525 eprintf("FFMPEG::open_audio_encode:"
1526 " check_frame_rate failed %s\n", filename);
1530 ctx->time_base = (AVRational) { frame_rate.den, frame_rate.num };
1531 st->time_base = ctx->time_base;
1535 eprintf("FFMPEG::open_encoder: not audio/video, %s:%s\n",
1536 codec_name, filename);
1541 ret = avcodec_open2(st->codec, codec, &sopts);
1543 ff_err(ret,"FFMPEG::open_encoder");
1544 eprintf("FFMPEG::open_encoder: open failed %s:%s\n",
1545 codec_name, filename);
1552 if( fmt_ctx->oformat->flags & AVFMT_GLOBALHEADER )
1553 st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
1554 if( fst && bsfilter[0] )
1555 fst->add_bsfilter(bsfilter, !bsargs[0] ? 0 : bsargs);
1559 av_dict_free(&sopts);
1563 int FFMPEG::close_encoder()
1566 if( encoding > 0 ) {
1567 av_write_trailer(fmt_ctx);
1568 if( !(fmt_ctx->flags & AVFMT_NOFILE) )
1569 avio_closep(&fmt_ctx->pb);
1575 int FFMPEG::decode_activate()
1577 if( decoding < 0 ) {
1579 int npgrms = fmt_ctx->nb_programs;
1580 for( int i=0; i<npgrms; ++i ) {
1581 AVProgram *pgrm = fmt_ctx->programs[i];
1582 // first start time video stream
1583 int64_t vstart_time = -1;
1584 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
1585 int st_idx = pgrm->stream_index[j];
1586 AVStream *st = fmt_ctx->streams[st_idx];
1587 AVCodecContext *avctx = st->codec;
1588 if( avctx->codec_type == AVMEDIA_TYPE_VIDEO ) {
1589 if( st->start_time == AV_NOPTS_VALUE ) continue;
1590 vstart_time = st->start_time;
1594 // max start time audio stream
1595 int64_t astart_time = -1;
1596 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
1597 int st_idx = pgrm->stream_index[j];
1598 AVStream *st = fmt_ctx->streams[st_idx];
1599 AVCodecContext *avctx = st->codec;
1600 if( avctx->codec_type == AVMEDIA_TYPE_VIDEO ) {
1601 if( st->start_time == AV_NOPTS_VALUE ) continue;
1602 if( astart_time > st->start_time ) continue;
1603 astart_time = st->start_time;
1606 if( astart_time < 0 || vstart_time < 0 ) continue;
1607 // match program streams to max start_time
1608 int64_t nudge = vstart_time > astart_time ? vstart_time : astart_time;
1609 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
1610 int st_idx = pgrm->stream_index[j];
1611 AVStream *st = fmt_ctx->streams[st_idx];
1612 AVCodecContext *avctx = st->codec;
1613 if( avctx->codec_type == AVMEDIA_TYPE_AUDIO ) {
1614 for( int k=0; k<ffaudio.size(); ++k ) {
1615 if( ffaudio[k]->idx == st_idx )
1616 ffaudio[k]->nudge = nudge;
1619 else if( avctx->codec_type == AVMEDIA_TYPE_VIDEO ) {
1620 for( int k=0; k<ffvideo.size(); ++k ) {
1621 if( ffvideo[k]->idx == st_idx )
1622 ffvideo[k]->nudge = nudge;
1627 int64_t vstart_time = 0, astart_time = 0;
1628 int nstreams = fmt_ctx->nb_streams;
1629 for( int i=0; i<nstreams; ++i ) {
1630 AVStream *st = fmt_ctx->streams[i];
1631 AVCodecContext *avctx = st->codec;
1632 switch( avctx->codec_type ) {
1633 case AVMEDIA_TYPE_VIDEO:
1634 if( st->start_time == AV_NOPTS_VALUE ) continue;
1635 if( vstart_time >= st->start_time ) continue;
1636 vstart_time = st->start_time;
1638 case AVMEDIA_TYPE_AUDIO:
1639 if( st->start_time == AV_NOPTS_VALUE ) continue;
1640 if( astart_time >= st->start_time ) continue;
1641 astart_time = st->start_time;
1645 int64_t nudge = vstart_time > astart_time ? vstart_time : astart_time;
1646 for( int k=0; k<ffvideo.size(); ++k ) {
1647 if( ffvideo[k]->nudge != AV_NOPTS_VALUE ) continue;
1648 ffvideo[k]->nudge = nudge;
1650 for( int k=0; k<ffaudio.size(); ++k ) {
1651 if( ffaudio[k]->nudge != AV_NOPTS_VALUE ) continue;
1652 ffaudio[k]->nudge = nudge;
1659 int FFMPEG::encode_activate()
1662 if( encoding < 0 ) {
1664 if( !(fmt_ctx->flags & AVFMT_NOFILE) &&
1665 (ret=avio_open(&fmt_ctx->pb, fmt_ctx->filename, AVIO_FLAG_WRITE)) < 0 ) {
1666 ff_err(ret, "FFMPEG::encode_activate: err opening : %s\n",
1671 AVDictionary *fopts = 0;
1672 char option_path[BCTEXTLEN];
1673 set_option_path(option_path, "format/%s", file_format);
1674 read_options(option_path, fopts);
1675 ret = avformat_write_header(fmt_ctx, &fopts);
1676 av_dict_free(&fopts);
1678 ff_err(ret, "FFMPEG::encode_activate: write header failed %s\n",
1687 int FFMPEG::audio_seek(int stream, int64_t pos)
1689 int aidx = astrm_index[stream].st_idx;
1690 FFAudioStream *aud = ffaudio[aidx];
1691 aud->audio_seek(pos);
1692 aud->seek_pos = aud->curr_pos = pos;
1696 int FFMPEG::video_seek(int stream, int64_t pos)
1698 int vidx = vstrm_index[stream].st_idx;
1699 FFVideoStream *vid = ffvideo[vidx];
1700 vid->video_seek(pos);
1701 vid->seek_pos = vid->curr_pos = pos;
1706 int FFMPEG::decode(int chn, int64_t pos, double *samples, int len)
1708 if( !has_audio || chn >= astrm_index.size() ) return -1;
1709 int aidx = astrm_index[chn].st_idx;
1710 FFAudioStream *aud = ffaudio[aidx];
1711 if( aud->load(pos, len) < len ) return -1;
1712 int ch = astrm_index[chn].st_ch;
1713 return aud->read(samples,len,ch);
1716 int FFMPEG::decode(int layer, int64_t pos, VFrame *vframe)
1718 if( !has_video || layer >= vstrm_index.size() ) return -1;
1719 int vidx = vstrm_index[layer].st_idx;
1720 FFVideoStream *vid = ffvideo[vidx];
1721 return vid->load(vframe, pos);
1724 int FFMPEG::encode(int stream, double **samples, int len)
1726 FFAudioStream *aud = ffaudio[stream];
1727 return aud->encode(samples, len);
1731 int FFMPEG::encode(int stream, VFrame *frame)
1733 FFVideoStream *vid = ffvideo[stream];
1734 return vid->encode(frame);
1737 void FFMPEG::start_muxer()
1745 void FFMPEG::stop_muxer()
1754 void FFMPEG::flow_off()
1757 flow_lock->lock("FFMPEG::flow_off");
1761 void FFMPEG::flow_on()
1765 flow_lock->unlock();
1768 void FFMPEG::flow_ctl()
1771 flow_lock->lock("FFMPEG::flow_ctl");
1772 flow_lock->unlock();
1776 int FFMPEG::mux_audio(FFrame *frm)
1779 AVStream *st = frm->fst->st;
1780 AVCodecContext *ctx = st->codec;
1781 AVFrame *frame = *frm;
1782 AVRational tick_rate = {1, ctx->sample_rate};
1783 frame->pts = av_rescale_q(frm->position, tick_rate, ctx->time_base);
1785 int ret = avcodec_encode_audio2(ctx, pkt, frame, &got_packet);
1786 if( ret >= 0 && got_packet ) {
1787 frm->fst->bs_filter(pkt);
1788 av_packet_rescale_ts(pkt, ctx->time_base, st->time_base);
1789 pkt->stream_index = st->index;
1790 ret = av_interleaved_write_frame(fmt_ctx, pkt);
1793 ff_err(ret, "FFMPEG::mux_audio");
1794 return ret >= 0 ? 0 : 1;
1797 int FFMPEG::mux_video(FFrame *frm)
1800 AVStream *st = frm->fst->st;
1801 AVFrame *frame = *frm;
1802 frame->pts = frm->position;
1803 int ret = 1, got_packet = 0;
1804 if( fmt_ctx->oformat->flags & AVFMT_RAWPICTURE ) {
1805 /* a hack to avoid data copy with some raw video muxers */
1806 pkt->flags |= AV_PKT_FLAG_KEY;
1807 pkt->stream_index = st->index;
1808 AVPicture *picture = (AVPicture *)frame;
1809 pkt->data = (uint8_t *)picture;
1810 pkt->size = sizeof(AVPicture);
1811 pkt->pts = pkt->dts = frame->pts;
1815 ret = avcodec_encode_video2(st->codec, pkt, frame, &got_packet);
1816 if( ret >= 0 && got_packet ) {
1817 frm->fst->bs_filter(pkt);
1818 av_packet_rescale_ts(pkt, st->codec->time_base, st->time_base);
1819 pkt->stream_index = st->index;
1820 ret = av_interleaved_write_frame(fmt_ctx, pkt);
1823 ff_err(ret, "FFMPEG::mux_video");
1824 return ret >= 0 ? 0 : 1;
1830 double atm = -1, vtm = -1;
1831 FFrame *afrm = 0, *vfrm = 0;
1833 for( int i=0; i<ffaudio.size(); ++i ) { // earliest audio
1834 FFStream *fst = ffaudio[i];
1835 if( fst->frm_count < 3 ) { demand = 1; flow_on(); }
1836 FFrame *frm = fst->frms.first;
1837 if( !frm ) { if( !done ) return; continue; }
1838 double tm = to_secs(frm->position, fst->st->codec->time_base);
1839 if( atm < 0 || tm < atm ) { atm = tm; afrm = frm; }
1841 for( int i=0; i<ffvideo.size(); ++i ) { // earliest video
1842 FFStream *fst = ffvideo[i];
1843 if( fst->frm_count < 2 ) { demand = 1; flow_on(); }
1844 FFrame *frm = fst->frms.first;
1845 if( !frm ) { if( !done ) return; continue; }
1846 double tm = to_secs(frm->position, fst->st->codec->time_base);
1847 if( vtm < 0 || tm < vtm ) { vtm = tm; vfrm = frm; }
1849 if( !demand ) flow_off();
1850 if( !afrm && !vfrm ) break;
1851 int v = !afrm ? -1 : !vfrm ? 1 : av_compare_ts(
1852 vfrm->position, vfrm->fst->st->codec->time_base,
1853 afrm->position, afrm->fst->st->codec->time_base);
1854 FFrame *frm = v <= 0 ? vfrm : afrm;
1855 if( frm == afrm ) mux_audio(frm);
1856 if( frm == vfrm ) mux_video(frm);
1865 mux_lock->lock("FFMPEG::run");
1872 int FFMPEG::ff_total_audio_channels()
1874 return astrm_index.size();
1877 int FFMPEG::ff_total_astreams()
1879 return ffaudio.size();
1882 int FFMPEG::ff_audio_channels(int stream)
1884 return ffaudio[stream]->channels;
1887 int FFMPEG::ff_sample_rate(int stream)
1889 return ffaudio[stream]->sample_rate;
1892 const char* FFMPEG::ff_audio_format(int stream)
1894 AVStream *st = ffaudio[stream]->st;
1895 AVCodecID id = st->codec->codec_id;
1896 const AVCodecDescriptor *desc = avcodec_descriptor_get(id);
1897 return desc ? desc->name : "Unknown";
1900 int FFMPEG::ff_audio_pid(int stream)
1902 return ffaudio[stream]->st->id;
1905 int64_t FFMPEG::ff_audio_samples(int stream)
1907 return ffaudio[stream]->length;
1910 // find audio astream/channels with this program,
1911 // or all program audio channels (astream=-1)
1912 int FFMPEG::ff_audio_for_video(int vstream, int astream, int64_t &channel_mask)
1916 int vidx = ffvideo[vstream]->idx;
1917 // find first program with this video stream
1918 for( int i=0; pidx<0 && i<(int)fmt_ctx->nb_programs; ++i ) {
1919 AVProgram *pgrm = fmt_ctx->programs[i];
1920 for( int j=0; pidx<0 && j<(int)pgrm->nb_stream_indexes; ++j ) {
1921 int st_idx = pgrm->stream_index[j];
1922 AVStream *st = fmt_ctx->streams[st_idx];
1923 if( st->codec->codec_type != AVMEDIA_TYPE_VIDEO ) continue;
1924 if( st_idx == vidx ) pidx = i;
1927 if( pidx < 0 ) return -1;
1929 int64_t channels = 0;
1930 AVProgram *pgrm = fmt_ctx->programs[pidx];
1931 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
1932 int aidx = pgrm->stream_index[j];
1933 AVStream *st = fmt_ctx->streams[aidx];
1934 if( st->codec->codec_type != AVMEDIA_TYPE_AUDIO ) continue;
1935 if( astream > 0 ) { --astream; continue; }
1937 for( int i=0; astrm<0 && i<ffaudio.size(); ++i )
1938 if( ffaudio[i]->idx == aidx ) astrm = i;
1940 if( ret < 0 ) ret = astrm;
1941 int64_t mask = (1 << ffaudio[astrm]->channels) - 1;
1942 channels |= mask << ffaudio[astrm]->channel0;
1944 if( !astream ) break;
1946 channel_mask = channels;
1951 int FFMPEG::ff_total_video_layers()
1953 return vstrm_index.size();
1956 int FFMPEG::ff_total_vstreams()
1958 return ffvideo.size();
1961 int FFMPEG::ff_video_width(int stream)
1963 return ffvideo[stream]->width;
1966 int FFMPEG::ff_video_height(int stream)
1968 return ffvideo[stream]->height;
1971 int FFMPEG::ff_set_video_width(int stream, int width)
1973 int w = ffvideo[stream]->width;
1974 ffvideo[stream]->width = width;
1978 int FFMPEG::ff_set_video_height(int stream, int height)
1980 int h = ffvideo[stream]->height;
1981 ffvideo[stream]->height = height;
1985 int FFMPEG::ff_coded_width(int stream)
1987 AVStream *st = ffvideo[stream]->st;
1988 return st->codec->coded_width;
1991 int FFMPEG::ff_coded_height(int stream)
1993 AVStream *st = ffvideo[stream]->st;
1994 return st->codec->coded_height;
1997 float FFMPEG::ff_aspect_ratio(int stream)
1999 return ffvideo[stream]->aspect_ratio;
2002 const char* FFMPEG::ff_video_format(int stream)
2004 AVStream *st = ffvideo[stream]->st;
2005 AVCodecID id = st->codec->codec_id;
2006 const AVCodecDescriptor *desc = avcodec_descriptor_get(id);
2007 return desc ? desc->name : "Unknown";
2010 double FFMPEG::ff_frame_rate(int stream)
2012 return ffvideo[stream]->frame_rate;
2015 int64_t FFMPEG::ff_video_frames(int stream)
2017 return ffvideo[stream]->length;
2020 int FFMPEG::ff_video_pid(int stream)
2022 return ffvideo[stream]->st->id;
2026 int FFMPEG::ff_cpus()
2028 return file_base->file->cpus;
2031 int FFVideoStream::create_filter(const char *filter_spec,
2032 AVCodecContext *src_ctx, AVCodecContext *sink_ctx)
2034 avfilter_register_all();
2035 filter_graph = avfilter_graph_alloc();
2036 AVFilter *buffersrc = avfilter_get_by_name("buffer");
2037 AVFilter *buffersink = avfilter_get_by_name("buffersink");
2039 int ret = 0; char args[BCTEXTLEN];
2040 snprintf(args, sizeof(args),
2041 "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
2042 src_ctx->width, src_ctx->height, src_ctx->pix_fmt,
2043 st->time_base.num, st->time_base.den,
2044 src_ctx->sample_aspect_ratio.num, src_ctx->sample_aspect_ratio.den);
2046 ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
2047 args, NULL, filter_graph);
2049 ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
2050 NULL, NULL, filter_graph);
2052 ret = av_opt_set_bin(buffersink_ctx, "pix_fmts",
2053 (uint8_t*)&sink_ctx->pix_fmt, sizeof(sink_ctx->pix_fmt),
2054 AV_OPT_SEARCH_CHILDREN);
2056 ff_err(ret, "FFVideoStream::create_filter");
2058 ret = FFStream::create_filter(filter_spec);
2059 return ret >= 0 ? 0 : 1;
2062 int FFAudioStream::create_filter(const char *filter_spec,
2063 AVCodecContext *src_ctx, AVCodecContext *sink_ctx)
2065 avfilter_register_all();
2066 filter_graph = avfilter_graph_alloc();
2067 AVFilter *buffersrc = avfilter_get_by_name("abuffer");
2068 AVFilter *buffersink = avfilter_get_by_name("abuffersink");
2069 int ret = 0; char args[BCTEXTLEN];
2070 snprintf(args, sizeof(args),
2071 "time_base=%d/%d:sample_rate=%d:sample_fmt=%s:channel_layout=0x%jx",
2072 st->time_base.num, st->time_base.den, src_ctx->sample_rate,
2073 av_get_sample_fmt_name(src_ctx->sample_fmt), src_ctx->channel_layout);
2075 ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
2076 args, NULL, filter_graph);
2078 ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
2079 NULL, NULL, filter_graph);
2081 ret = av_opt_set_bin(buffersink_ctx, "sample_fmts",
2082 (uint8_t*)&sink_ctx->sample_fmt, sizeof(sink_ctx->sample_fmt),
2083 AV_OPT_SEARCH_CHILDREN);
2085 ret = av_opt_set_bin(buffersink_ctx, "channel_layouts",
2086 (uint8_t*)&sink_ctx->channel_layout,
2087 sizeof(sink_ctx->channel_layout), AV_OPT_SEARCH_CHILDREN);
2089 ret = av_opt_set_bin(buffersink_ctx, "sample_rates",
2090 (uint8_t*)&sink_ctx->sample_rate, sizeof(sink_ctx->sample_rate),
2091 AV_OPT_SEARCH_CHILDREN);
2093 ff_err(ret, "FFAudioStream::create_filter");
2095 ret = FFStream::create_filter(filter_spec);
2096 return ret >= 0 ? 0 : 1;
2099 int FFStream::create_filter(const char *filter_spec)
2101 /* Endpoints for the filter graph. */
2102 AVFilterInOut *outputs = avfilter_inout_alloc();
2103 outputs->name = av_strdup("in");
2104 outputs->filter_ctx = buffersrc_ctx;
2105 outputs->pad_idx = 0;
2108 AVFilterInOut *inputs = avfilter_inout_alloc();
2109 inputs->name = av_strdup("out");
2110 inputs->filter_ctx = buffersink_ctx;
2111 inputs->pad_idx = 0;
2114 int ret = !outputs->name || !inputs->name ? -1 : 0;
2116 ret = avfilter_graph_parse_ptr(filter_graph, filter_spec,
2117 &inputs, &outputs, NULL);
2119 ret = avfilter_graph_config(filter_graph, NULL);
2122 ff_err(ret, "FFStream::create_filter");
2123 avfilter_inout_free(&inputs);
2124 avfilter_inout_free(&outputs);
2128 void FFStream::add_bsfilter(const char *bsf, const char *ap)
2130 bsfilter.append(new BSFilter(bsf,ap));
2133 int FFStream::bs_filter(AVPacket *pkt)
2135 if( !bsfilter.size() ) return 0;
2136 av_packet_split_side_data(pkt);
2139 for( int i=0; i<bsfilter.size(); ++i ) {
2140 AVPacket bspkt = *pkt;
2141 ret = av_bitstream_filter_filter(bsfilter[i]->bsfc,
2142 st->codec, bsfilter[i]->args, &bspkt.data, &bspkt.size,
2143 pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY);
2144 if( ret < 0 ) break;
2145 int size = bspkt.size;
2146 uint8_t *data = bspkt.data;
2147 if( !ret && bspkt.data != pkt->data ) {
2149 data = (uint8_t *)av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
2150 if( !data ) { ret = AVERROR(ENOMEM); break; }
2151 memcpy(data, bspkt.data, size);
2152 memset(data+size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
2156 pkt->side_data = 0; pkt->side_data_elems = 0;
2157 av_free_packet(pkt);
2158 ret = av_packet_from_data(&bspkt, data, size);
2159 if( ret < 0 ) break;
2164 ff_err(ret,"FFStream::bs_filter");