10 // work arounds (centos)
13 #define INT64_MAX 9223372036854775807LL
15 #define MAX_RETRY 1000
18 #include "bccmodels.h"
20 #include "fileffmpeg.h"
23 #include "indexfile.h"
26 #include "mainerror.h"
31 #define VIDEO_INBUF_SIZE 0x10000
32 #define AUDIO_INBUF_SIZE 0x10000
33 #define VIDEO_REFILL_THRESH 0
34 #define AUDIO_REFILL_THRESH 0x1000
36 Mutex FFMPEG::fflock("FFMPEG::fflock");
38 static void ff_err(int ret, const char *fmt, ...)
43 vsnprintf(msg, sizeof(msg), fmt, ap);
45 char errmsg[BCSTRLEN];
46 av_strerror(ret, errmsg, sizeof(errmsg));
47 fprintf(stderr,_("%s err: %s\n"),msg, errmsg);
63 pkt.data = 0; pkt.size = 0;
66 FFrame::FFrame(FFStream *fst)
69 frm = av_frame_alloc();
70 init = fst->init_frame(frm);
78 void FFrame::queue(int64_t pos)
84 void FFrame::dequeue()
89 int FFAudioStream::read(float *fp, long len)
97 while( --k >= 0 ) *fp++ = *op++;
98 if( op >= lmt ) op = bfr;
103 void FFAudioStream::realloc(long nsz, int nch, long len)
105 long bsz = nsz * nch;
106 float *np = new float[bsz];
107 inp = np + read(np, len) * nch;
112 delete [] bfr; bfr = np;
115 void FFAudioStream::realloc(long nsz, int nch)
117 if( nsz > sz || this->nch != nch ) {
118 long len = this->nch != nch ? 0 : hpos;
119 if( len > sz ) len = sz;
121 realloc(nsz, nch, len);
125 void FFAudioStream::reserve(long nsz, int nch)
127 long len = (inp - outp) / nch;
129 if( nsz > sz || this->nch != nch ) {
130 if( this->nch != nch ) len = 0;
131 realloc(nsz, nch, len);
134 if( (len*=nch) > 0 && bfr != outp )
135 memmove(bfr, outp, len*sizeof(*bfr));
140 long FFAudioStream::used()
142 long len = inp>=outp ? inp-outp : inp-bfr + lmt-outp;
145 long FFAudioStream::avail()
148 if( in1 >= lmt ) in1 = bfr;
149 long len = outp >= in1 ? outp-in1 : outp-bfr + lmt-in1;
152 void FFAudioStream::reset_history()
158 void FFAudioStream::iseek(int64_t ofs)
160 outp = inp - ofs*nch;
161 if( outp < bfr ) outp += sz*nch;
164 float *FFAudioStream::get_outp(int ofs)
171 int64_t FFAudioStream::put_inp(int ofs)
174 return (inp-outp) / nch;
177 int FFAudioStream::write(const float *fp, long len)
185 while( --k >= 0 ) *ip++ = *fp++;
186 if( ip >= lmt ) ip = bfr;
193 int FFAudioStream::zero(long len)
201 while( --k >= 0 ) *ip++ = 0;
202 if( ip >= lmt ) ip = bfr;
209 // does not advance outp
210 int FFAudioStream::read(double *dp, long len, int ch)
213 float *op = outp + ch;
214 float *lmt1 = lmt + nch-1;
216 int k = (lmt1 - op) / nch;
219 while( --k >= 0 ) { *dp++ = *op; op += nch; }
220 if( op >= lmt ) op -= sz*nch;
225 // load linear buffer, no wrapping allowed, does not advance inp
226 int FFAudioStream::write(const double *dp, long len, int ch)
229 float *ip = inp + ch;
230 while( --n >= 0 ) { *ip = *dp++; ip += nch; }
235 FFStream::FFStream(FFMPEG *ffmpeg, AVStream *st, int fidx)
237 this->ffmpeg = ffmpeg;
240 frm_lock = new Mutex("FFStream::frm_lock");
246 nudge = AV_NOPTS_VALUE;
247 seek_pos = curr_pos = 0;
250 reading = writing = 0;
256 FFStream::~FFStream()
258 if( reading > 0 || writing > 0 ) avcodec_close(st->codec);
259 if( fmt_ctx ) avformat_close_input(&fmt_ctx);
260 while( frms.first ) frms.remove(frms.first);
261 if( filter_graph ) avfilter_graph_free(&filter_graph);
262 if( frame ) av_frame_free(&frame);
263 if( fframe ) av_frame_free(&fframe);
264 bsfilter.remove_all_objects();
268 void FFStream::ff_lock(const char *cp)
270 FFMPEG::fflock.lock(cp);
273 void FFStream::ff_unlock()
275 FFMPEG::fflock.unlock();
278 void FFStream::queue(FFrame *frm)
280 frm_lock->lock("FFStream::queue");
284 ffmpeg->mux_lock->unlock();
287 void FFStream::dequeue(FFrame *frm)
289 frm_lock->lock("FFStream::dequeue");
291 frms.remove_pointer(frm);
295 int FFStream::encode_activate()
298 writing = ffmpeg->encode_activate();
302 int FFStream::decode_activate()
304 if( reading < 0 && (reading=ffmpeg->decode_activate()) > 0 ) {
305 ff_lock("FFStream::decode_activate");
307 AVDictionary *copts = 0;
308 av_dict_copy(&copts, ffmpeg->opts, 0);
310 // this should be avformat_copy_context(), but no copy avail
311 ret = avformat_open_input(&fmt_ctx, ffmpeg->fmt_ctx->filename, NULL, &copts);
313 ret = avformat_find_stream_info(fmt_ctx, 0);
314 st = fmt_ctx->streams[fidx];
318 AVCodecID codec_id = st->codec->codec_id;
319 AVCodec *decoder = avcodec_find_decoder(codec_id);
320 ret = avcodec_open2(st->codec, decoder, &copts);
324 eprintf("FFStream::decode_activate: open decoder failed\n");
327 eprintf("FFStream::decode_activate: can't clone input file\n");
328 av_dict_free(&copts);
334 int FFStream::read_packet()
336 av_packet_unref(ipkt);
337 int ret = av_read_frame(fmt_ctx, ipkt);
340 if( ret == AVERROR_EOF ) {
341 ipkt->stream_index = st->index;
344 ff_err(ret, "FFStream::read_packet: av_read_frame failed\n");
351 int FFStream::decode(AVFrame *frame)
354 int retries = MAX_RETRY;
357 while( ret >= 0 && !flushed && --retries >= 0 && !got_frame ) {
360 if( (ret=read_packet()) < 0 ) break;
362 if( ipkt->stream_index == st->index ) {
363 while( (ipkt->size > 0 || !ipkt->data) && !got_frame ) {
364 ret = decode_frame(ipkt, frame, got_frame);
365 if( ret <= 0 || !ipkt->data ) break;
378 fprintf(stderr, "FFStream::decode: Retry limit\n");
382 fprintf(stderr, "FFStream::decode: failed\n");
387 int FFStream::load_filter(AVFrame *frame)
389 int ret = av_buffersrc_add_frame_flags(buffersrc_ctx,
390 frame, AV_BUFFERSRC_FLAG_KEEP_REF);
392 av_frame_unref(frame);
393 eprintf("FFStream::load_filter: av_buffersrc_add_frame_flags failed\n");
398 int FFStream::read_filter(AVFrame *frame)
400 int ret = av_buffersink_get_frame(buffersink_ctx, frame);
402 if( ret == AVERROR(EAGAIN) ) return 0;
403 if( ret == AVERROR_EOF ) { st_eof(1); return -1; }
404 ff_err(ret, "FFStream::read_filter: av_buffersink_get_frame failed\n");
410 int FFStream::read_frame(AVFrame *frame)
412 if( !filter_graph || !buffersrc_ctx || !buffersink_ctx )
413 return decode(frame);
414 if( !fframe && !(fframe=av_frame_alloc()) ) {
415 fprintf(stderr, "FFStream::read_frame: av_frame_alloc failed\n");
419 while( !flushed && !(ret=read_filter(frame)) ) {
420 if( (ret=decode(fframe)) < 0 ) break;
421 if( ret > 0 && (ret=load_filter(fframe)) < 0 ) break;
426 int FFStream::write_packet(FFPacket &pkt)
429 av_packet_rescale_ts(pkt, st->codec->time_base, st->time_base);
430 pkt->stream_index = st->index;
431 return av_interleaved_write_frame(ffmpeg->fmt_ctx, pkt);
434 int FFStream::flush()
440 ret = encode_frame(pkt, 0, got_packet);
441 if( ret < 0 || !got_packet ) break;
442 ret = write_packet(pkt);
445 ff_err(ret, "FFStream::flush");
446 return ret >= 0 ? 0 : 1;
449 int FFStream::seek(int64_t no, double rate)
452 // default ffmpeg native seek
454 int64_t pos = no, plmt = -1;
455 if( index_markers && index_markers->size() > 1 ) {
456 IndexMarks &marks = *index_markers;
457 int i = marks.find(pos);
458 int64_t n = i < 0 ? (i=0) : marks[i].no;
459 // if indexed seek point not too far away (<30 secs), use index
460 if( no-n < 30*rate ) {
463 if( ++i < marks.size() ) plmt = marks[i].pos;
467 double secs = pos / rate;
468 int64_t pkt_ts, tstmp = secs * st->time_base.den / st->time_base.num;
469 if( nudge != AV_NOPTS_VALUE ) tstmp += nudge;
470 int ret = avformat_seek_file(fmt_ctx, st->index,
471 -INT64_MAX, tstmp, INT64_MAX, AVSEEK_FLAG_ANY);
473 avcodec_flush_buffers(st->codec);
474 need_packet = 0; flushed = 0;
475 seeked = 1; st_eof(0);
476 // read up to retry packets, limited to npkts in stream, and not past pkt.pos plmt
477 for( int retry=MAX_RETRY; ret>=0 && --retry>=0; ) {
478 if( read_packet() <= 0 ) { ret = -1; break; }
479 if( plmt >= 0 && ipkt->pos >= plmt ) break;
480 if( ipkt->stream_index != st->index ) continue;
481 if( --npkts <= 0 ) break;
482 if( (pkt_ts=ipkt->dts) == AV_NOPTS_VALUE &&
483 (pkt_ts=ipkt->pts) == AV_NOPTS_VALUE ) continue;
484 if( pkt_ts >= tstmp ) break;
488 //printf("** seek fail %ld, %ld\n", pos, tstmp);
489 seeked = need_packet = 0;
493 //printf("seeked pos = %ld, %ld\n", pos, tstmp);
494 seek_pos = curr_pos = pos;
498 FFAudioStream::FFAudioStream(FFMPEG *ffmpeg, AVStream *strm, int idx, int fidx)
499 : FFStream(ffmpeg, strm, fidx)
502 channel0 = channels = 0;
506 resample_context = 0;
515 bfr = new float[bsz];
520 FFAudioStream::~FFAudioStream()
522 if( resample_context ) swr_free(&resample_context);
527 int FFAudioStream::get_samples(float *&samples, uint8_t **data, int len)
529 samples = *(float **)data;
530 if( resample_context ) {
531 if( len > aud_bfr_sz ) {
537 aud_bfr = new float[aud_bfr_sz*channels];
539 int ret = swr_convert(resample_context,
540 (uint8_t**)&aud_bfr, aud_bfr_sz, (const uint8_t**)data, len);
542 ff_err(ret, "FFAudioStream::get_samples: swr_convert failed\n");
551 int FFAudioStream::load_history(uint8_t **data, int len)
554 len = get_samples(samples, data, len);
556 // biggest user bfr since seek + frame
557 realloc(mbsz + len + 1, channels);
563 int FFAudioStream::decode_frame(AVPacket *pkt, AVFrame *frame, int &got_frame)
565 int first_frame = seeked; seeked = 0;
566 int ret = avcodec_decode_audio4(st->codec, frame, &got_frame, pkt);
568 if( first_frame ) return 0;
569 ff_err(ret, "FFAudioStream::decode_frame: Could not read audio frame\n");
573 int64_t pkt_ts = av_frame_get_best_effort_timestamp(frame);
574 if( pkt_ts != AV_NOPTS_VALUE )
575 curr_pos = ffmpeg->to_secs(pkt_ts - nudge, st->time_base) * sample_rate + 0.5;
580 int FFAudioStream::encode_activate()
582 if( writing >= 0 ) return writing;
583 AVCodecContext *ctx = st->codec;
584 frame_sz = ctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE ?
585 10000 : ctx->frame_size;
586 return FFStream::encode_activate();
589 int FFAudioStream::nb_samples()
591 AVCodecContext *ctx = st->codec;
592 return ctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE ?
593 10000 : ctx->frame_size;
596 int64_t FFAudioStream::load_buffer(double ** const sp, int len)
598 reserve(len+1, st->codec->channels);
599 for( int ch=0; ch<nch; ++ch )
600 write(sp[ch], len, ch);
604 int FFAudioStream::in_history(int64_t pos)
606 if( pos > curr_pos ) return 0;
608 if( len > sz ) len = sz;
609 if( pos < curr_pos - len ) return 0;
614 int FFAudioStream::init_frame(AVFrame *frame)
616 AVCodecContext *ctx = st->codec;
617 frame->nb_samples = frame_sz;
618 frame->format = ctx->sample_fmt;
619 frame->channel_layout = ctx->channel_layout;
620 frame->sample_rate = ctx->sample_rate;
621 int ret = av_frame_get_buffer(frame, 0);
623 ff_err(ret, "FFAudioStream::init_frame: av_frame_get_buffer failed\n");
627 int FFAudioStream::load(int64_t pos, int len)
629 if( audio_seek(pos) < 0 ) return -1;
630 if( !frame && !(frame=av_frame_alloc()) ) {
631 fprintf(stderr, "FFAudioStream::load: av_frame_alloc failed\n");
634 if( mbsz < len ) mbsz = len;
635 int64_t end_pos = pos + len;
637 for( int i=0; ret>=0 && !flushed && curr_pos<end_pos && i<MAX_RETRY; ++i ) {
638 ret = read_frame(frame);
640 load_history(&frame->extended_data[0], frame->nb_samples);
641 curr_pos += frame->nb_samples;
644 if( end_pos > curr_pos ) {
645 zero(end_pos - curr_pos);
648 len = curr_pos - pos;
653 int FFAudioStream::audio_seek(int64_t pos)
655 if( decode_activate() < 0 ) return -1;
656 if( !st->codec || !st->codec->codec ) return -1;
657 if( in_history(pos) ) return 0;
658 if( pos == curr_pos ) return 0;
659 reset_history(); mbsz = 0;
660 // guarentee preload > 1sec samples
661 if( seek(pos-sample_rate, sample_rate) < 0 ) return -1;
665 int FFAudioStream::encode(double **samples, int len)
667 if( encode_activate() <= 0 ) return -1;
670 int64_t count = load_buffer(samples, len);
673 while( ret >= 0 && count >= frame_sz ) {
674 frm = new FFrame(this);
675 if( (ret=frm->initted()) < 0 ) break;
676 AVFrame *frame = *frm;
677 float *bfrp = get_outp(frame_sz);
678 ret = swr_convert(resample_context,
679 (uint8_t **)frame->extended_data, frame_sz,
680 (const uint8_t **)&bfrp, frame_sz);
682 ff_err(ret, "FFAudioStream::encode: swr_convert failed\n");
685 frm->queue(curr_pos);
687 curr_pos += frame_sz;
692 return ret >= 0 ? 0 : 1;
695 int FFAudioStream::encode_frame(AVPacket *pkt, AVFrame *frame, int &got_packet)
697 int ret = avcodec_encode_audio2(st->codec, pkt, frame, &got_packet);
699 ff_err(ret, "FFAudioStream::encode_frame: encode audio failed\n");
705 void FFAudioStream::load_markers()
707 IndexState *index_state = ffmpeg->file_base->asset->index_state;
708 if( !index_state || idx >= index_state->audio_markers.size() ) return;
709 FFStream::load_markers(*index_state->audio_markers[idx], sample_rate);
712 FFVideoStream::FFVideoStream(FFMPEG *ffmpeg, AVStream *strm, int idx, int fidx)
713 : FFStream(ffmpeg, strm, fidx)
722 FFVideoStream::~FFVideoStream()
726 int FFVideoStream::decode_frame(AVPacket *pkt, AVFrame *frame, int &got_frame)
728 int first_frame = seeked; seeked = 0;
729 int ret = avcodec_decode_video2(st->codec, frame, &got_frame, pkt);
731 if( first_frame ) return 0;
732 ff_err(ret, "FFVideoStream::decode_frame: Could not read video frame\n");
736 int64_t pkt_ts = av_frame_get_best_effort_timestamp(frame);
737 if( pkt_ts != AV_NOPTS_VALUE )
738 curr_pos = ffmpeg->to_secs(pkt_ts - nudge, st->time_base) * frame_rate + 0.5;
743 int FFVideoStream::load(VFrame *vframe, int64_t pos)
745 int ret = video_seek(pos);
746 if( ret < 0 ) return -1;
747 if( !frame && !(frame=av_frame_alloc()) ) {
748 fprintf(stderr, "FFVideoStream::load: av_frame_alloc failed\n");
751 for( int i=0; ret>=0 && !flushed && curr_pos<=pos && i<MAX_RETRY; ++i ) {
752 ret = read_frame(frame);
753 if( ret > 0 ) ++curr_pos;
756 AVCodecContext *ctx = st->codec;
757 ret = convert_cmodel(vframe, (AVPicture *)frame,
758 ctx->pix_fmt, ctx->width, ctx->height);
760 ret = ret > 0 ? 1 : ret < 0 ? -1 : 0;
764 int FFVideoStream::video_seek(int64_t pos)
766 if( decode_activate() < 0 ) return -1;
767 if( !st->codec || !st->codec->codec ) return -1;
768 if( pos == curr_pos-1 && !seeked ) return 0;
769 // if close enough, just read up to current
770 int gop = st->codec->gop_size;
771 if( gop < 4 ) gop = 4;
772 if( gop > 64 ) gop = 64;
773 int read_limit = curr_pos + 3*gop;
774 if( pos >= curr_pos && pos <= read_limit ) return 0;
775 // guarentee preload more than 2*gop frames
776 if( seek(pos - 3*gop, frame_rate) < 0 ) return -1;
780 int FFVideoStream::init_frame(AVFrame *picture)
782 AVCodecContext *ctx = st->codec;
783 picture->format = ctx->pix_fmt;
784 picture->width = ctx->width;
785 picture->height = ctx->height;
786 int ret = av_frame_get_buffer(picture, 32);
790 int FFVideoStream::encode(VFrame *vframe)
792 if( encode_activate() <= 0 ) return -1;
794 FFrame *picture = new FFrame(this);
795 int ret = picture->initted();
797 AVFrame *frame = *picture;
798 frame->pts = curr_pos;
799 AVCodecContext *ctx = st->codec;
800 ret = convert_pixfmt(vframe, (AVPicture*)frame,
801 ctx->pix_fmt, ctx->width, ctx->height);
804 picture->queue(curr_pos);
808 fprintf(stderr, "FFVideoStream::encode: encode failed\n");
811 return ret >= 0 ? 0 : 1;
814 int FFVideoStream::encode_frame(AVPacket *pkt, AVFrame *frame, int &got_packet)
816 int ret = avcodec_encode_video2(st->codec, pkt, frame, &got_packet);
818 ff_err(ret, "FFVideoStream::encode_frame: encode video failed\n");
824 PixelFormat FFVideoConvert::color_model_to_pix_fmt(int color_model)
826 switch( color_model ) {
827 case BC_YUV422: return AV_PIX_FMT_YUYV422;
828 case BC_RGB888: return AV_PIX_FMT_RGB24;
829 case BC_RGBA8888: return AV_PIX_FMT_RGBA;
830 case BC_BGR8888: return AV_PIX_FMT_BGR0;
831 case BC_BGR888: return AV_PIX_FMT_BGR24;
832 case BC_YUV420P: return AV_PIX_FMT_YUV420P;
833 case BC_YUV422P: return AV_PIX_FMT_YUV422P;
834 case BC_YUV444P: return AV_PIX_FMT_YUV444P;
835 case BC_YUV411P: return AV_PIX_FMT_YUV411P;
836 case BC_RGB565: return AV_PIX_FMT_RGB565;
837 case BC_RGB161616: return AV_PIX_FMT_RGB48LE;
838 case BC_RGBA16161616: return AV_PIX_FMT_RGBA64LE;
842 return AV_PIX_FMT_NB;
845 int FFVideoConvert::pix_fmt_to_color_model(PixelFormat pix_fmt)
848 case AV_PIX_FMT_YUYV422: return BC_YUV422;
849 case AV_PIX_FMT_RGB24: return BC_RGB888;
850 case AV_PIX_FMT_RGBA: return BC_RGBA8888;
851 case AV_PIX_FMT_BGR0: return BC_BGR8888;
852 case AV_PIX_FMT_BGR24: return BC_BGR888;
853 case AV_PIX_FMT_YUV420P: return BC_YUV420P;
854 case AV_PIX_FMT_YUV422P: return BC_YUV422P;
855 case AV_PIX_FMT_YUV444P: return BC_YUV444P;
856 case AV_PIX_FMT_YUV411P: return BC_YUV411P;
857 case AV_PIX_FMT_RGB565: return BC_RGB565;
858 case AV_PIX_FMT_RGB48LE: return BC_RGB161616;
859 case AV_PIX_FMT_RGBA64LE: return BC_RGBA16161616;
863 return BC_TRANSPARENCY;
866 int FFVideoConvert::convert_picture_vframe(VFrame *frame,
867 AVPicture *ip, PixelFormat ifmt, int iw, int ih)
870 int cmodel = frame->get_color_model();
871 PixelFormat ofmt = color_model_to_pix_fmt(cmodel);
872 if( ofmt == AV_PIX_FMT_NB ) return -1;
873 int size = avpicture_fill(&opic, frame->get_data(), ofmt,
874 frame->get_w(), frame->get_h());
875 if( size < 0 ) return -1;
877 // transfer line sizes must match also
878 int planar = BC_CModels::is_planar(cmodel);
879 int packed_width = !planar ? frame->get_bytes_per_line() :
880 BC_CModels::calculate_pixelsize(cmodel) * frame->get_w();
881 if( packed_width != opic.linesize[0] ) return -1;
884 // override avpicture_fill() for planar types
885 opic.data[0] = frame->get_y();
886 opic.data[1] = frame->get_u();
887 opic.data[2] = frame->get_v();
890 convert_ctx = sws_getCachedContext(convert_ctx, iw, ih, ifmt,
891 frame->get_w(), frame->get_h(), ofmt, SWS_BICUBIC, NULL, NULL, NULL);
893 fprintf(stderr, "FFVideoConvert::convert_picture_frame:"
894 " sws_getCachedContext() failed\n");
897 int ret = sws_scale(convert_ctx, ip->data, ip->linesize, 0, ih,
898 opic.data, opic.linesize);
900 ff_err(ret, "FFVideoConvert::convert_picture_frame: sws_scale() failed\n");
906 int FFVideoConvert::convert_cmodel(VFrame *frame,
907 AVPicture *ip, PixelFormat ifmt, int iw, int ih)
909 // try direct transfer
910 if( !convert_picture_vframe(frame, ip, ifmt, iw, ih) ) return 1;
911 // use indirect transfer
912 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(ifmt);
914 for( int i = 0; i <desc->nb_components; ++i ) {
915 int bits = desc->comp[i].depth_minus1 + 1;
916 if( bits > max_bits ) max_bits = bits;
918 // from libavcodec/pixdesc.c
919 #define pixdesc_has_alpha(pixdesc) ((pixdesc)->nb_components == 2 || \
920 (pixdesc)->nb_components == 4 || (pixdesc)->flags & AV_PIX_FMT_FLAG_PAL)
921 int icolor_model = pixdesc_has_alpha(desc) ?
922 (max_bits > 8 ? BC_RGBA16161616 : BC_RGBA8888) :
923 (max_bits > 8 ? BC_RGB161616 : BC_RGB888) ;
924 VFrame vframe(iw, ih, icolor_model);
925 if( convert_picture_vframe(&vframe, ip, ifmt, iw, ih) ) return -1;
926 frame->transfer_from(&vframe);
930 int FFVideoConvert::transfer_cmodel(VFrame *frame,
931 AVFrame *ifp, PixelFormat ifmt, int iw, int ih)
933 int ret = convert_cmodel(frame, (AVPicture *)ifp, ifmt, iw, ih);
935 const AVDictionary *src = av_frame_get_metadata(ifp);
936 AVDictionaryEntry *t = NULL;
937 BC_Hash *hp = frame->get_params();
939 while( (t=av_dict_get(src, "", t, AV_DICT_IGNORE_SUFFIX)) )
940 hp->update(t->key, t->value);
945 int FFVideoConvert::convert_vframe_picture(VFrame *frame,
946 AVPicture *op, PixelFormat ofmt, int ow, int oh)
949 int cmodel = frame->get_color_model();
950 PixelFormat ifmt = color_model_to_pix_fmt(cmodel);
951 if( ifmt == AV_PIX_FMT_NB ) return -1;
952 int size = avpicture_fill(&opic, frame->get_data(), ifmt,
953 frame->get_w(), frame->get_h());
954 if( size < 0 ) return -1;
956 // transfer line sizes must match also
957 int planar = BC_CModels::is_planar(cmodel);
958 int packed_width = !planar ? frame->get_bytes_per_line() :
959 BC_CModels::calculate_pixelsize(cmodel) * frame->get_w();
960 if( packed_width != opic.linesize[0] ) return -1;
963 // override avpicture_fill() for planar types
964 opic.data[0] = frame->get_y();
965 opic.data[1] = frame->get_u();
966 opic.data[2] = frame->get_v();
969 convert_ctx = sws_getCachedContext(convert_ctx, frame->get_w(), frame->get_h(), ifmt,
970 ow, oh, ofmt, SWS_BICUBIC, NULL, NULL, NULL);
972 fprintf(stderr, "FFVideoConvert::convert_frame_picture:"
973 " sws_getCachedContext() failed\n");
976 int ret = sws_scale(convert_ctx, opic.data, opic.linesize, 0, frame->get_h(),
977 op->data, op->linesize);
979 ff_err(ret, "FFVideoConvert::convert_frame_picture: sws_scale() failed\n");
985 int FFVideoConvert::convert_pixfmt(VFrame *frame,
986 AVPicture *op, PixelFormat ofmt, int ow, int oh)
988 // try direct transfer
989 if( !convert_vframe_picture(frame, op, ofmt, ow, oh) ) return 1;
990 // use indirect transfer
991 int colormodel = frame->get_color_model();
992 int bits = BC_CModels::calculate_pixelsize(colormodel) * 8;
993 bits /= BC_CModels::components(colormodel);
994 int icolor_model = BC_CModels::has_alpha(colormodel) ?
995 (bits > 8 ? BC_RGBA16161616 : BC_RGBA8888) :
996 (bits > 8 ? BC_RGB161616: BC_RGB888) ;
997 VFrame vframe(frame->get_w(), frame->get_h(), icolor_model);
998 vframe.transfer_from(frame);
999 if( !convert_vframe_picture(&vframe, op, ofmt, ow, oh) ) return 1;
1003 int FFVideoConvert::transfer_pixfmt(VFrame *frame,
1004 AVFrame *ofp, PixelFormat ofmt, int ow, int oh)
1006 int ret = convert_pixfmt(frame, (AVPicture *)ofp, ofmt, ow, oh);
1008 BC_Hash *hp = frame->get_params();
1009 AVDictionary **dict = avpriv_frame_get_metadatap(ofp);
1010 //av_dict_free(dict);
1011 for( int i=0; i<hp->size(); ++i ) {
1012 char *key = hp->get_key(i), *val = hp->get_value(i);
1013 av_dict_set(dict, key, val, 0);
1019 void FFVideoStream::load_markers()
1021 IndexState *index_state = ffmpeg->file_base->asset->index_state;
1022 if( idx >= index_state->video_markers.size() ) return;
1023 FFStream::load_markers(*index_state->video_markers[idx], frame_rate);
1027 FFMPEG::FFMPEG(FileBase *file_base)
1030 this->file_base = file_base;
1031 memset(file_format,0,sizeof(file_format));
1032 mux_lock = new Condition(0,"FFMPEG::mux_lock",0);
1033 flow_lock = new Condition(1,"FFStream::flow_lock",0);
1036 decoding = encoding = 0;
1037 has_audio = has_video = 0;
1040 opt_video_filter = 0;
1041 opt_audio_filter = 0;
1042 char option_path[BCTEXTLEN];
1043 set_option_path(option_path, "%s", "ffmpeg.opts");
1044 read_options(option_path, opts);
1049 ff_lock("FFMPEG::~FFMPEG()");
1051 ffaudio.remove_all_objects();
1052 ffvideo.remove_all_objects();
1053 if( fmt_ctx ) avformat_close_input(&fmt_ctx);
1057 av_dict_free(&opts);
1058 delete [] opt_video_filter;
1059 delete [] opt_audio_filter;
1062 int FFMPEG::check_sample_rate(AVCodec *codec, int sample_rate)
1064 const int *p = codec->supported_samplerates;
1065 if( !p ) return sample_rate;
1067 if( *p == sample_rate ) return *p;
1073 static inline AVRational std_frame_rate(int i)
1075 static const int m1 = 1001*12, m2 = 1000*12;
1076 static const int freqs[] = {
1077 40*m1, 48*m1, 50*m1, 60*m1, 80*m1,120*m1, 240*m1,
1078 24*m2, 30*m2, 60*m2, 12*m2, 15*m2, 48*m2, 0,
1080 int freq = i<30*12 ? (i+1)*1001 : freqs[i-30*12];
1081 return (AVRational) { freq, 1001*12 };
1084 AVRational FFMPEG::check_frame_rate(AVCodec *codec, double frame_rate)
1086 const AVRational *p = codec->supported_framerates;
1087 AVRational rate, best_rate = (AVRational) { 0, 0 };
1088 double max_err = 1.; int i = 0;
1089 while( ((p ? (rate=*p++) : (rate=std_frame_rate(i++))), rate.num) != 0 ) {
1090 double framerate = (double) rate.num / rate.den;
1091 double err = fabs(frame_rate/framerate - 1.);
1092 if( err >= max_err ) continue;
1096 return max_err < 0.0001 ? best_rate : (AVRational) { 0, 0 };
1099 AVRational FFMPEG::to_sample_aspect_ratio(Asset *asset)
1102 double display_aspect = asset->width / (double)asset->height;
1103 double sample_aspect = asset->aspect_ratio / display_aspect;
1104 int width = 1000000, height = width * sample_aspect + 0.5;
1106 MWindow::create_aspect_ratio(w, h, width, height);
1107 return (AVRational){(int)h, (int)w};
1110 return (AVRational){1, 1};
1114 AVRational FFMPEG::to_time_base(int sample_rate)
1116 return (AVRational){1, sample_rate};
1119 void FFMPEG::set_option_path(char *path, const char *fmt, ...)
1122 strcat(path, "/ffmpeg/");
1123 path += strlen(path);
1126 vsprintf(path, fmt, ap);
1130 void FFMPEG::get_option_path(char *path, const char *type, const char *spec)
1135 set_option_path(path, "%s/%s", type, spec);
1138 int FFMPEG::get_format(char *format, const char *path, char *spec)
1140 char option_path[BCTEXTLEN], line[BCTEXTLEN], codec[BCTEXTLEN];
1141 get_option_path(option_path, path, spec);
1142 FILE *fp = fopen(option_path,"r");
1145 if( !fgets(line, sizeof(line), fp) ) ret = 1;
1147 line[sizeof(line)-1] = 0;
1148 ret = scan_option_line(line, format, codec);
1154 int FFMPEG::get_file_format()
1157 char audio_format[BCSTRLEN], video_format[BCSTRLEN];
1158 file_format[0] = audio_format[0] = video_format[0] = 0;
1159 Asset *asset = file_base->asset;
1160 if( !ret && asset->audio_data )
1161 ret = get_format(audio_format, "audio", asset->acodec);
1162 if( !ret && asset->video_data )
1163 ret = get_format(video_format, "video", asset->vcodec);
1164 if( !ret && !audio_format[0] && !video_format[0] )
1166 if( !ret && audio_format[0] && video_format[0] &&
1167 strcmp(audio_format, video_format) ) ret = -1;
1169 strcpy(file_format, audio_format[0] ? audio_format : video_format);
1173 int FFMPEG::scan_option_line(char *cp, char *tag, char *val)
1175 while( *cp == ' ' || *cp == '\t' ) ++cp;
1177 while( *cp && *cp != ' ' && *cp != '\t' && *cp != '=' ) ++cp;
1179 if( !len || len > BCSTRLEN-1 ) return 1;
1180 while( bp < cp ) *tag++ = *bp++;
1182 while( *cp == ' ' || *cp == '\t' ) ++cp;
1183 if( *cp == '=' ) ++cp;
1184 while( *cp == ' ' || *cp == '\t' ) ++cp;
1186 while( *cp && *cp != '\n' ) ++cp;
1188 if( len > BCTEXTLEN-1 ) return 1;
1189 while( bp < cp ) *val++ = *bp++;
1194 int FFMPEG::get_encoder(const char *options,
1195 char *format, char *codec, char *bsfilter, char *bsargs)
1197 FILE *fp = fopen(options,"r");
1199 eprintf("FFMPEG::get_encoder: options open failed %s\n",options);
1202 if( get_encoder(fp, format, codec, bsfilter, bsargs) )
1203 eprintf(_("FFMPEG::get_encoder:"
1204 " err: format/codec not found %s\n"), options);
1209 int FFMPEG::get_encoder(FILE *fp,
1210 char *format, char *codec, char *bsfilter, char *bsargs)
1212 format[0] = codec[0] = bsfilter[0] = bsargs[0] = 0;
1213 char line[BCTEXTLEN];
1214 if( !fgets(line, sizeof(line), fp) ) return 1;
1215 line[sizeof(line)-1] = 0;
1216 if( scan_option_line(line, format, codec) ) return 1;
1218 while( *cp && *cp != '|' ) ++cp;
1219 if( !*cp ) return 0;
1220 if( scan_option_line(cp+1, bsfilter, bsargs) ) return 1;
1221 do { *cp-- = 0; } while( cp>=codec && (*cp==' ' || *cp == '\t' ) );
1225 int FFMPEG::read_options(const char *options, AVDictionary *&opts)
1227 FILE *fp = fopen(options,"r");
1229 int ret = read_options(fp, options, opts);
1234 int FFMPEG::scan_options(const char *options, AVDictionary *&opts, AVStream *st)
1236 FILE *fp = fmemopen((void *)options,strlen(options),"r");
1238 int ret = read_options(fp, options, opts);
1240 AVDictionaryEntry *tag = av_dict_get(opts, "id", NULL, 0);
1241 if( tag ) st->id = strtol(tag->value,0,0);
1245 int FFMPEG::read_options(FILE *fp, const char *options, AVDictionary *&opts)
1247 int ret = 0, no = 0;
1248 char line[BCTEXTLEN];
1249 while( !ret && fgets(line, sizeof(line), fp) ) {
1250 line[sizeof(line)-1] = 0;
1252 if( line[0] == '#' ) continue;
1253 if( line[0] == '\n' ) continue;
1254 char key[BCSTRLEN], val[BCTEXTLEN];
1255 if( scan_option_line(line, key, val) ) {
1256 eprintf(_("FFMPEG::read_options:"
1257 " err reading %s: line %d\n"), options, no);
1261 if( !strcmp(key, "duration") )
1262 opt_duration = strtod(val, 0);
1263 else if( !strcmp(key, "video_filter") )
1264 opt_video_filter = cstrdup(val);
1265 else if( !strcmp(key, "audio_filter") )
1266 opt_audio_filter = cstrdup(val);
1267 else if( !strcmp(key, "loglevel") )
1270 av_dict_set(&opts, key, val, 0);
1276 int FFMPEG::load_options(const char *options, AVDictionary *&opts)
1278 char option_path[BCTEXTLEN];
1279 set_option_path(option_path, "%s", options);
1280 return read_options(option_path, opts);
1283 int FFMPEG::load_options(const char *path, char *bfr, int len)
1286 FILE *fp = fopen(path, "r");
1288 fgets(bfr, len, fp); // skip hdr
1289 len = fread(bfr, 1, len-1, fp);
1290 if( len < 0 ) len = 0;
1296 void FFMPEG::set_loglevel(const char *ap)
1298 if( !ap || !*ap ) return;
1303 { "quiet" , AV_LOG_QUIET },
1304 { "panic" , AV_LOG_PANIC },
1305 { "fatal" , AV_LOG_FATAL },
1306 { "error" , AV_LOG_ERROR },
1307 { "warning", AV_LOG_WARNING },
1308 { "info" , AV_LOG_INFO },
1309 { "verbose", AV_LOG_VERBOSE },
1310 { "debug" , AV_LOG_DEBUG },
1312 for( int i=0; i<(int)(sizeof(log_levels)/sizeof(log_levels[0])); ++i ) {
1313 if( !strcmp(log_levels[i].name, ap) ) {
1314 av_log_set_level(log_levels[i].level);
1318 av_log_set_level(atoi(ap));
1321 double FFMPEG::to_secs(int64_t time, AVRational time_base)
1323 double base_time = time == AV_NOPTS_VALUE ? 0 :
1324 av_rescale_q(time, time_base, AV_TIME_BASE_Q);
1325 return base_time / AV_TIME_BASE;
1328 int FFMPEG::info(char *text, int len)
1330 if( len <= 0 ) return 0;
1332 #define report(s...) do { int n = snprintf(cp,len,s); cp += n; len -= n; } while(0)
1334 if( ffvideo.size() > 0 )
1335 report("\n%d video stream%s\n",ffvideo.size(), ffvideo.size()!=1 ? "s" : "");
1336 for( int vidx=0; vidx<ffvideo.size(); ++vidx ) {
1337 FFVideoStream *vid = ffvideo[vidx];
1338 AVStream *st = vid->st;
1339 AVCodecContext *avctx = st->codec;
1340 report(_("vid%d (%d), id 0x%06x:\n"), vid->idx, vid->fidx, avctx->codec_id);
1341 const AVCodecDescriptor *desc = avcodec_descriptor_get(avctx->codec_id);
1342 report(" video%d %s", vidx+1, desc ? desc->name : " (unkn)");
1343 report(" %dx%d %5.2f", vid->width, vid->height, vid->frame_rate);
1344 const char *pfn = av_get_pix_fmt_name(avctx->pix_fmt);
1345 report(" pix %s\n", pfn ? pfn : "(unkn)");
1346 double secs = to_secs(st->duration, st->time_base);
1347 int64_t length = secs * vid->frame_rate + 0.5;
1348 double ofs = to_secs((vid->nudge - st->start_time), st->time_base);
1349 int64_t nudge = ofs * vid->frame_rate;
1350 int ch = nudge >= 0 ? '+' : (nudge=-nudge, '-');
1351 report(" %jd%c%jd frms %0.2f secs", length,ch,nudge, secs);
1352 int hrs = secs/3600; secs -= hrs*3600;
1353 int mins = secs/60; secs -= mins*60;
1354 report(" %d:%02d:%05.2f\n", hrs, mins, secs);
1356 if( ffaudio.size() > 0 )
1357 report("\n%d audio stream%s\n",ffaudio.size(), ffaudio.size()!=1 ? "s" : "");
1358 for( int aidx=0; aidx<ffaudio.size(); ++aidx ) {
1359 FFAudioStream *aud = ffaudio[aidx];
1360 AVStream *st = aud->st;
1361 AVCodecContext *avctx = st->codec;
1362 report(_("aud%d (%d), id 0x%06x:\n"), aud->idx, aud->fidx, avctx->codec_id);
1363 const AVCodecDescriptor *desc = avcodec_descriptor_get(avctx->codec_id);
1364 int nch = aud->channels, ch0 = aud->channel0+1;
1365 report(" audio%d-%d %s", ch0, ch0+nch-1, desc ? desc->name : " (unkn)");
1366 const char *fmt = av_get_sample_fmt_name(avctx->sample_fmt);
1367 report(" %s %d", fmt, aud->sample_rate);
1368 int sample_bits = av_get_bits_per_sample(avctx->codec_id);
1369 report(" %dbits\n", sample_bits);
1370 double secs = to_secs(st->duration, st->time_base);
1371 int64_t length = secs * aud->sample_rate + 0.5;
1372 double ofs = to_secs((aud->nudge - st->start_time), st->time_base);
1373 int64_t nudge = ofs * aud->sample_rate;
1374 int ch = nudge >= 0 ? '+' : (nudge=-nudge, '-');
1375 report(" %jd%c%jd smpl %0.2f secs", length,ch,nudge, secs);
1376 int hrs = secs/3600; secs -= hrs*3600;
1377 int mins = secs/60; secs -= mins*60;
1378 report(" %d:%02d:%05.2f\n", hrs, mins, secs);
1380 if( fmt_ctx->nb_programs > 0 )
1381 report("\n%d program%s\n",fmt_ctx->nb_programs, fmt_ctx->nb_programs!=1 ? "s" : "");
1382 for( int i=0; i<(int)fmt_ctx->nb_programs; ++i ) {
1383 report("program %d", i+1);
1384 AVProgram *pgrm = fmt_ctx->programs[i];
1385 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
1386 int idx = pgrm->stream_index[j];
1387 int vidx = ffvideo.size();
1388 while( --vidx>=0 && ffvideo[vidx]->fidx != idx );
1390 report(", vid%d", vidx);
1393 int aidx = ffaudio.size();
1394 while( --aidx>=0 && ffaudio[aidx]->fidx != idx );
1396 report(", aud%d", aidx);
1399 report(", (%d)", pgrm->stream_index[j]);
1404 AVDictionaryEntry *tag = 0;
1405 while ((tag = av_dict_get(fmt_ctx->metadata, "", tag, AV_DICT_IGNORE_SUFFIX)))
1406 report("%s=%s\n", tag->key, tag->value);
1415 int FFMPEG::init_decoder(const char *filename)
1417 ff_lock("FFMPEG::init_decoder");
1419 char file_opts[BCTEXTLEN];
1420 char *bp = strrchr(strcpy(file_opts, filename), '/');
1421 char *sp = strrchr(!bp ? file_opts : bp, '.');
1424 strcpy(sp, ".opts");
1425 fp = fopen(file_opts, "r");
1428 read_options(fp, file_opts, opts);
1432 load_options("decode.opts", opts);
1433 AVDictionary *fopts = 0;
1434 av_dict_copy(&fopts, opts, 0);
1435 int ret = avformat_open_input(&fmt_ctx, filename, NULL, &fopts);
1436 av_dict_free(&fopts);
1438 ret = avformat_find_stream_info(fmt_ctx, NULL);
1443 return !ret ? 0 : 1;
1446 int FFMPEG::open_decoder()
1449 if( stat(fmt_ctx->filename, &st) < 0 ) {
1450 eprintf("FFMPEG::open_decoder: can't stat file: %s\n",
1455 int64_t file_bits = 8 * st.st_size;
1456 if( !fmt_ctx->bit_rate && opt_duration > 0 )
1457 fmt_ctx->bit_rate = file_bits / opt_duration;
1460 if( fmt_ctx->bit_rate > 0 ) {
1461 for( int i=0; i<(int)fmt_ctx->nb_streams; ++i ) {
1462 AVStream *st = fmt_ctx->streams[i];
1463 if( st->duration != AV_NOPTS_VALUE ) continue;
1464 if( st->time_base.num > INT64_MAX / fmt_ctx->bit_rate ) continue;
1465 st->duration = av_rescale(file_bits, st->time_base.den,
1466 fmt_ctx->bit_rate * (int64_t) st->time_base.num);
1471 printf("FFMPEG::open_decoder: some stream times estimated\n");
1473 ff_lock("FFMPEG::open_decoder");
1475 for( int i=0; i<(int)fmt_ctx->nb_streams; ++i ) {
1476 AVStream *st = fmt_ctx->streams[i];
1477 if( st->duration == AV_NOPTS_VALUE ) bad_time = 1;
1478 AVCodecContext *avctx = st->codec;
1479 const AVCodecDescriptor *codec_desc = avcodec_descriptor_get(avctx->codec_id);
1480 if( !codec_desc ) continue;
1481 if( avctx->codec_type == AVMEDIA_TYPE_VIDEO ) {
1482 if( avctx->width < 1 ) continue;
1483 if( avctx->height < 1 ) continue;
1484 AVRational framerate = av_guess_frame_rate(fmt_ctx, st, 0);
1485 if( framerate.num < 1 ) continue;
1487 int vidx = ffvideo.size();
1488 FFVideoStream *vid = new FFVideoStream(this, st, vidx, i);
1489 vstrm_index.append(ffidx(vidx, 0));
1490 ffvideo.append(vid);
1491 vid->width = avctx->width;
1492 vid->height = avctx->height;
1493 vid->frame_rate = !framerate.den ? 0 : (double)framerate.num / framerate.den;
1494 double secs = to_secs(st->duration, st->time_base);
1495 vid->length = secs * vid->frame_rate;
1496 vid->aspect_ratio = (double)st->sample_aspect_ratio.num / st->sample_aspect_ratio.den;
1497 vid->nudge = st->start_time;
1499 if( opt_video_filter )
1500 vid->create_filter(opt_video_filter, avctx,avctx);
1502 else if( avctx->codec_type == AVMEDIA_TYPE_AUDIO ) {
1503 if( avctx->channels < 1 ) continue;
1504 if( avctx->sample_rate < 1 ) continue;
1506 int aidx = ffaudio.size();
1507 FFAudioStream *aud = new FFAudioStream(this, st, aidx, i);
1508 ffaudio.append(aud);
1509 aud->channel0 = astrm_index.size();
1510 aud->channels = avctx->channels;
1511 for( int ch=0; ch<aud->channels; ++ch )
1512 astrm_index.append(ffidx(aidx, ch));
1513 aud->sample_rate = avctx->sample_rate;
1514 double secs = to_secs(st->duration, st->time_base);
1515 aud->length = secs * aud->sample_rate;
1516 if( avctx->sample_fmt != AV_SAMPLE_FMT_FLT ) {
1517 uint64_t layout = av_get_default_channel_layout(avctx->channels);
1518 if( !layout ) layout = ((uint64_t)1<<aud->channels) - 1;
1519 aud->resample_context = swr_alloc_set_opts(NULL,
1520 layout, AV_SAMPLE_FMT_FLT, avctx->sample_rate,
1521 layout, avctx->sample_fmt, avctx->sample_rate,
1523 swr_init(aud->resample_context);
1525 aud->nudge = st->start_time;
1527 if( opt_audio_filter )
1528 aud->create_filter(opt_audio_filter, avctx,avctx);
1532 printf("FFMPEG::open_decoder: some stream have bad times\n");
1538 int FFMPEG::init_encoder(const char *filename)
1540 int fd = ::open(filename,O_WRONLY);
1541 if( fd < 0 ) fd = open(filename,O_WRONLY+O_CREAT,0666);
1543 eprintf("FFMPEG::init_encoder: bad file path: %s\n", filename);
1547 int ret = get_file_format();
1549 eprintf("FFMPEG::init_encoder: bad file format: %s\n", filename);
1553 eprintf("FFMPEG::init_encoder: mismatch audio/video file format: %s\n", filename);
1556 ff_lock("FFMPEG::init_encoder");
1558 avformat_alloc_output_context2(&fmt_ctx, 0, file_format, filename);
1560 eprintf("FFMPEG::init_encoder: failed: %s\n", filename);
1565 load_options("encode.opts", opts);
1572 int FFMPEG::open_encoder(const char *type, const char *spec)
1575 Asset *asset = file_base->asset;
1576 char *filename = asset->path;
1577 AVDictionary *sopts = 0;
1578 av_dict_copy(&sopts, opts, 0);
1579 char option_path[BCTEXTLEN];
1580 set_option_path(option_path, "%s/%s.opts", type, type);
1581 read_options(option_path, sopts);
1582 get_option_path(option_path, type, spec);
1583 char format_name[BCSTRLEN], codec_name[BCTEXTLEN];
1584 char bsfilter[BCSTRLEN], bsargs[BCTEXTLEN];
1585 if( get_encoder(option_path, format_name, codec_name, bsfilter, bsargs) ) {
1586 eprintf("FFMPEG::open_encoder: get_encoder failed %s:%s\n",
1587 option_path, filename);
1591 if( !strcmp(codec_name, CODEC_TAG_DVSD) ) strcpy(codec_name, "dv");
1592 else if( !strcmp(codec_name, CODEC_TAG_MJPEG) ) strcpy(codec_name, "mjpeg");
1593 else if( !strcmp(codec_name, CODEC_TAG_JPEG) ) strcpy(codec_name, "jpeg");
1596 ff_lock("FFMPEG::open_encoder");
1600 const AVCodecDescriptor *codec_desc = 0;
1601 AVCodec *codec = avcodec_find_encoder_by_name(codec_name);
1603 eprintf("FFMPEG::open_encoder: cant find codec %s:%s\n",
1604 codec_name, filename);
1608 codec_desc = avcodec_descriptor_get(codec->id);
1610 eprintf("FFMPEG::open_encoder: unknown codec %s:%s\n",
1611 codec_name, filename);
1616 st = avformat_new_stream(fmt_ctx, 0);
1618 eprintf("FFMPEG::open_encoder: cant create stream %s:%s\n",
1619 codec_name, filename);
1624 AVCodecContext *ctx = st->codec;
1625 switch( codec_desc->type ) {
1626 case AVMEDIA_TYPE_AUDIO: {
1628 eprintf("FFMPEG::open_encoder: duplicate audio %s:%s\n",
1629 codec_name, filename);
1634 if( scan_options(asset->ff_audio_options, sopts, st) ) {
1635 eprintf("FFMPEG::open_encoder: bad audio options %s:%s\n",
1636 codec_name, filename);
1640 if( asset->ff_audio_bitrate > 0 ) {
1641 ctx->bit_rate = asset->ff_audio_bitrate;
1643 sprintf(arg, "%d", asset->ff_audio_bitrate);
1644 av_dict_set(&sopts, "b", arg, 0);
1646 int aidx = ffaudio.size();
1647 int fidx = aidx + ffvideo.size();
1648 FFAudioStream *aud = new FFAudioStream(this, st, aidx, fidx);
1649 ffaudio.append(aud); fst = aud;
1650 aud->sample_rate = asset->sample_rate;
1651 ctx->channels = aud->channels = asset->channels;
1652 for( int ch=0; ch<aud->channels; ++ch )
1653 astrm_index.append(ffidx(aidx, ch));
1654 ctx->channel_layout = av_get_default_channel_layout(ctx->channels);
1655 ctx->sample_rate = check_sample_rate(codec, asset->sample_rate);
1656 if( !ctx->sample_rate ) {
1657 eprintf("FFMPEG::open_audio_encode:"
1658 " check_sample_rate failed %s\n", filename);
1662 ctx->time_base = st->time_base = (AVRational){1, aud->sample_rate};
1663 ctx->sample_fmt = codec->sample_fmts[0];
1664 uint64_t layout = av_get_default_channel_layout(ctx->channels);
1665 aud->resample_context = swr_alloc_set_opts(NULL,
1666 layout, ctx->sample_fmt, aud->sample_rate,
1667 layout, AV_SAMPLE_FMT_FLT, ctx->sample_rate,
1669 swr_init(aud->resample_context);
1672 case AVMEDIA_TYPE_VIDEO: {
1674 eprintf("FFMPEG::open_encoder: duplicate video %s:%s\n",
1675 codec_name, filename);
1680 if( scan_options(asset->ff_video_options, sopts, st) ) {
1681 eprintf("FFMPEG::open_encoder: bad video options %s:%s\n",
1682 codec_name, filename);
1686 if( asset->ff_video_bitrate > 0 ) {
1687 ctx->bit_rate = asset->ff_video_bitrate;
1689 sprintf(arg, "%d", asset->ff_video_bitrate);
1690 av_dict_set(&sopts, "b", arg, 0);
1692 else if( asset->ff_video_quality > 0 ) {
1693 ctx->global_quality = asset->ff_video_quality * FF_QP2LAMBDA;
1694 ctx->qmin = ctx->qmax = asset->ff_video_quality;
1695 ctx->mb_lmin = ctx->qmin * FF_QP2LAMBDA;
1696 ctx->mb_lmax = ctx->qmax * FF_QP2LAMBDA;
1697 ctx->flags |= CODEC_FLAG_QSCALE;
1699 av_dict_set(&sopts, "flags", "+qscale", 0);
1700 sprintf(arg, "%d", asset->ff_video_quality);
1701 av_dict_set(&sopts, "qscale", arg, 0);
1702 sprintf(arg, "%d", ctx->global_quality);
1703 av_dict_set(&sopts, "global_quality", arg, 0);
1705 int vidx = ffvideo.size();
1706 int fidx = vidx + ffaudio.size();
1707 FFVideoStream *vid = new FFVideoStream(this, st, vidx, fidx);
1708 vstrm_index.append(ffidx(vidx, 0));
1709 ffvideo.append(vid); fst = vid;
1710 vid->width = asset->width;
1711 ctx->width = (vid->width+3) & ~3;
1712 vid->height = asset->height;
1713 ctx->height = (vid->height+3) & ~3;
1714 vid->frame_rate = asset->frame_rate;
1715 ctx->sample_aspect_ratio = to_sample_aspect_ratio(asset);
1716 ctx->pix_fmt = codec->pix_fmts ? codec->pix_fmts[0] : AV_PIX_FMT_YUV420P;
1717 AVRational frame_rate = check_frame_rate(codec, vid->frame_rate);
1718 if( !frame_rate.num || !frame_rate.den ) {
1719 eprintf("FFMPEG::open_audio_encode:"
1720 " check_frame_rate failed %s\n", filename);
1724 ctx->time_base = (AVRational) { frame_rate.den, frame_rate.num };
1725 st->time_base = ctx->time_base;
1729 eprintf("FFMPEG::open_encoder: not audio/video, %s:%s\n",
1730 codec_name, filename);
1735 if( fmt_ctx->oformat->flags & AVFMT_GLOBALHEADER )
1736 st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
1738 ret = avcodec_open2(st->codec, codec, &sopts);
1740 ff_err(ret,"FFMPEG::open_encoder");
1741 eprintf("FFMPEG::open_encoder: open failed %s:%s\n",
1742 codec_name, filename);
1749 if( fst && bsfilter[0] )
1750 fst->add_bsfilter(bsfilter, !bsargs[0] ? 0 : bsargs);
1754 av_dict_free(&sopts);
1758 int FFMPEG::close_encoder()
1761 if( encoding > 0 ) {
1762 av_write_trailer(fmt_ctx);
1763 if( !(fmt_ctx->flags & AVFMT_NOFILE) )
1764 avio_closep(&fmt_ctx->pb);
1770 int FFMPEG::decode_activate()
1772 if( decoding < 0 ) {
1774 for( int vidx=0; vidx<ffvideo.size(); ++vidx )
1775 ffvideo[vidx]->nudge = AV_NOPTS_VALUE;
1776 for( int aidx=0; aidx<ffaudio.size(); ++aidx )
1777 ffaudio[aidx]->nudge = AV_NOPTS_VALUE;
1778 // set nudges for each program stream set
1779 int npgrms = fmt_ctx->nb_programs;
1780 for( int i=0; i<npgrms; ++i ) {
1781 AVProgram *pgrm = fmt_ctx->programs[i];
1782 // first start time video stream
1783 int64_t vstart_time = -1, astart_time = -1;
1784 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
1785 int fidx = pgrm->stream_index[j];
1786 AVStream *st = fmt_ctx->streams[fidx];
1787 AVCodecContext *avctx = st->codec;
1788 if( avctx->codec_type == AVMEDIA_TYPE_VIDEO ) {
1789 if( st->start_time == AV_NOPTS_VALUE ) continue;
1790 if( vstart_time > st->start_time ) continue;
1791 vstart_time = st->start_time;
1794 if( avctx->codec_type == AVMEDIA_TYPE_VIDEO ) {
1795 if( st->start_time == AV_NOPTS_VALUE ) continue;
1796 if( astart_time > st->start_time ) continue;
1797 astart_time = st->start_time;
1801 // match program streams to max start_time
1802 int64_t nudge = vstart_time > astart_time ? vstart_time : astart_time;
1803 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
1804 int fidx = pgrm->stream_index[j];
1805 AVStream *st = fmt_ctx->streams[fidx];
1806 AVCodecContext *avctx = st->codec;
1807 if( avctx->codec_type == AVMEDIA_TYPE_VIDEO ) {
1808 for( int k=0; k<ffvideo.size(); ++k ) {
1809 if( ffvideo[k]->fidx != fidx ) continue;
1810 ffvideo[k]->nudge = nudge;
1814 if( avctx->codec_type == AVMEDIA_TYPE_AUDIO ) {
1815 for( int k=0; k<ffaudio.size(); ++k ) {
1816 if( ffaudio[k]->fidx != fidx ) continue;
1817 ffaudio[k]->nudge = nudge;
1823 // set nudges for any streams not yet set
1824 int64_t vstart_time = 0, astart_time = 0;
1825 int nstreams = fmt_ctx->nb_streams;
1826 for( int i=0; i<nstreams; ++i ) {
1827 AVStream *st = fmt_ctx->streams[i];
1828 AVCodecContext *avctx = st->codec;
1829 switch( avctx->codec_type ) {
1830 case AVMEDIA_TYPE_VIDEO: {
1831 if( st->start_time == AV_NOPTS_VALUE ) continue;
1832 int vidx = ffvideo.size();
1833 while( --vidx >= 0 && ffvideo[vidx]->fidx != i );
1834 if( vidx >= 0 && ffvideo[vidx]->nudge != AV_NOPTS_VALUE ) continue;
1835 if( vstart_time >= st->start_time ) continue;
1836 vstart_time = st->start_time;
1838 case AVMEDIA_TYPE_AUDIO: {
1839 if( st->start_time == AV_NOPTS_VALUE ) continue;
1840 int aidx = ffaudio.size();
1841 while( --aidx >= 0 && ffaudio[aidx]->fidx != i );
1842 if( aidx >= 0 && ffaudio[aidx]->nudge != AV_NOPTS_VALUE ) continue;
1843 if( astart_time >= st->start_time ) continue;
1844 astart_time = st->start_time;
1849 int64_t nudge = vstart_time > astart_time ? vstart_time : astart_time;
1850 for( int vidx=0; vidx<ffvideo.size(); ++vidx ) {
1851 if( ffvideo[vidx]->nudge != AV_NOPTS_VALUE ) continue;
1852 ffvideo[vidx]->nudge = nudge;
1854 for( int aidx=0; aidx<ffaudio.size(); ++aidx ) {
1855 if( ffaudio[aidx]->nudge != AV_NOPTS_VALUE ) continue;
1856 ffaudio[aidx]->nudge = nudge;
1863 int FFMPEG::encode_activate()
1866 if( encoding < 0 ) {
1868 if( !(fmt_ctx->flags & AVFMT_NOFILE) &&
1869 (ret=avio_open(&fmt_ctx->pb, fmt_ctx->filename, AVIO_FLAG_WRITE)) < 0 ) {
1870 ff_err(ret, "FFMPEG::encode_activate: err opening : %s\n",
1875 AVDictionary *fopts = 0;
1876 char option_path[BCTEXTLEN];
1877 set_option_path(option_path, "format/%s", file_format);
1878 read_options(option_path, fopts);
1879 ret = avformat_write_header(fmt_ctx, &fopts);
1880 av_dict_free(&fopts);
1882 ff_err(ret, "FFMPEG::encode_activate: write header failed %s\n",
1892 int FFMPEG::audio_seek(int stream, int64_t pos)
1894 int aidx = astrm_index[stream].st_idx;
1895 FFAudioStream *aud = ffaudio[aidx];
1896 aud->audio_seek(pos);
1900 int FFMPEG::video_seek(int stream, int64_t pos)
1902 int vidx = vstrm_index[stream].st_idx;
1903 FFVideoStream *vid = ffvideo[vidx];
1904 vid->video_seek(pos);
1909 int FFMPEG::decode(int chn, int64_t pos, double *samples, int len)
1911 if( !has_audio || chn >= astrm_index.size() ) return -1;
1912 int aidx = astrm_index[chn].st_idx;
1913 FFAudioStream *aud = ffaudio[aidx];
1914 if( aud->load(pos, len) < len ) return -1;
1915 int ch = astrm_index[chn].st_ch;
1916 int ret = aud->read(samples,len,ch);
1920 int FFMPEG::decode(int layer, int64_t pos, VFrame *vframe)
1922 if( !has_video || layer >= vstrm_index.size() ) return -1;
1923 int vidx = vstrm_index[layer].st_idx;
1924 FFVideoStream *vid = ffvideo[vidx];
1925 return vid->load(vframe, pos);
1929 int FFMPEG::encode(int stream, double **samples, int len)
1931 FFAudioStream *aud = ffaudio[stream];
1932 return aud->encode(samples, len);
1936 int FFMPEG::encode(int stream, VFrame *frame)
1938 FFVideoStream *vid = ffvideo[stream];
1939 return vid->encode(frame);
1942 void FFMPEG::start_muxer()
1950 void FFMPEG::stop_muxer()
1959 void FFMPEG::flow_off()
1962 flow_lock->lock("FFMPEG::flow_off");
1966 void FFMPEG::flow_on()
1970 flow_lock->unlock();
1973 void FFMPEG::flow_ctl()
1976 flow_lock->lock("FFMPEG::flow_ctl");
1977 flow_lock->unlock();
1981 int FFMPEG::mux_audio(FFrame *frm)
1984 FFStream *fst = frm->fst;
1985 AVCodecContext *ctx = fst->st->codec;
1986 AVFrame *frame = *frm;
1987 AVRational tick_rate = {1, ctx->sample_rate};
1988 frame->pts = av_rescale_q(frm->position, tick_rate, ctx->time_base);
1990 int ret = fst->encode_frame(pkt, frame, got_packet);
1991 if( ret >= 0 && got_packet )
1992 ret = fst->write_packet(pkt);
1994 ff_err(ret, "FFMPEG::mux_audio");
1995 return ret >= 0 ? 0 : 1;
1998 int FFMPEG::mux_video(FFrame *frm)
2001 FFStream *fst = frm->fst;
2002 AVFrame *frame = *frm;
2003 frame->pts = frm->position;
2004 int ret = 1, got_packet = 0;
2005 if( fmt_ctx->oformat->flags & AVFMT_RAWPICTURE ) {
2006 /* a hack to avoid data copy with some raw video muxers */
2007 pkt->flags |= AV_PKT_FLAG_KEY;
2008 pkt->stream_index = fst->st->index;
2009 AVPicture *picture = (AVPicture *)frame;
2010 pkt->data = (uint8_t *)picture;
2011 pkt->size = sizeof(AVPicture);
2012 pkt->pts = pkt->dts = frame->pts;
2016 ret = fst->encode_frame(pkt, frame, got_packet);
2017 if( ret >= 0 && got_packet )
2018 ret = fst->write_packet(pkt);
2020 ff_err(ret, "FFMPEG::mux_video");
2021 return ret >= 0 ? 0 : 1;
2027 double atm = -1, vtm = -1;
2028 FFrame *afrm = 0, *vfrm = 0;
2030 for( int i=0; i<ffaudio.size(); ++i ) { // earliest audio
2031 FFStream *fst = ffaudio[i];
2032 if( fst->frm_count < 3 ) { demand = 1; flow_on(); }
2033 FFrame *frm = fst->frms.first;
2034 if( !frm ) { if( !done ) return; continue; }
2035 double tm = to_secs(frm->position, fst->st->codec->time_base);
2036 if( atm < 0 || tm < atm ) { atm = tm; afrm = frm; }
2038 for( int i=0; i<ffvideo.size(); ++i ) { // earliest video
2039 FFStream *fst = ffvideo[i];
2040 if( fst->frm_count < 2 ) { demand = 1; flow_on(); }
2041 FFrame *frm = fst->frms.first;
2042 if( !frm ) { if( !done ) return; continue; }
2043 double tm = to_secs(frm->position, fst->st->codec->time_base);
2044 if( vtm < 0 || tm < vtm ) { vtm = tm; vfrm = frm; }
2046 if( !demand ) flow_off();
2047 if( !afrm && !vfrm ) break;
2048 int v = !afrm ? -1 : !vfrm ? 1 : av_compare_ts(
2049 vfrm->position, vfrm->fst->st->codec->time_base,
2050 afrm->position, afrm->fst->st->codec->time_base);
2051 FFrame *frm = v <= 0 ? vfrm : afrm;
2052 if( frm == afrm ) mux_audio(frm);
2053 if( frm == vfrm ) mux_video(frm);
2062 mux_lock->lock("FFMPEG::run");
2066 for( int i=0; i<ffaudio.size(); ++i )
2067 ffaudio[i]->flush();
2068 for( int i=0; i<ffvideo.size(); ++i )
2069 ffvideo[i]->flush();
2073 int FFMPEG::ff_total_audio_channels()
2075 return astrm_index.size();
2078 int FFMPEG::ff_total_astreams()
2080 return ffaudio.size();
2083 int FFMPEG::ff_audio_channels(int stream)
2085 return ffaudio[stream]->channels;
2088 int FFMPEG::ff_sample_rate(int stream)
2090 return ffaudio[stream]->sample_rate;
2093 const char* FFMPEG::ff_audio_format(int stream)
2095 AVStream *st = ffaudio[stream]->st;
2096 AVCodecID id = st->codec->codec_id;
2097 const AVCodecDescriptor *desc = avcodec_descriptor_get(id);
2098 return desc ? desc->name : "Unknown";
2101 int FFMPEG::ff_audio_pid(int stream)
2103 return ffaudio[stream]->st->id;
2106 int64_t FFMPEG::ff_audio_samples(int stream)
2108 return ffaudio[stream]->length;
2111 // find audio astream/channels with this program,
2112 // or all program audio channels (astream=-1)
2113 int FFMPEG::ff_audio_for_video(int vstream, int astream, int64_t &channel_mask)
2117 int vidx = ffvideo[vstream]->fidx;
2118 // find first program with this video stream
2119 for( int i=0; pidx<0 && i<(int)fmt_ctx->nb_programs; ++i ) {
2120 AVProgram *pgrm = fmt_ctx->programs[i];
2121 for( int j=0; pidx<0 && j<(int)pgrm->nb_stream_indexes; ++j ) {
2122 int st_idx = pgrm->stream_index[j];
2123 AVStream *st = fmt_ctx->streams[st_idx];
2124 if( st->codec->codec_type != AVMEDIA_TYPE_VIDEO ) continue;
2125 if( st_idx == vidx ) pidx = i;
2128 if( pidx < 0 ) return -1;
2130 int64_t channels = 0;
2131 AVProgram *pgrm = fmt_ctx->programs[pidx];
2132 for( int j=0; j<(int)pgrm->nb_stream_indexes; ++j ) {
2133 int aidx = pgrm->stream_index[j];
2134 AVStream *st = fmt_ctx->streams[aidx];
2135 if( st->codec->codec_type != AVMEDIA_TYPE_AUDIO ) continue;
2136 if( astream > 0 ) { --astream; continue; }
2138 for( int i=0; astrm<0 && i<ffaudio.size(); ++i )
2139 if( ffaudio[i]->fidx == aidx ) astrm = i;
2141 if( ret < 0 ) ret = astrm;
2142 int64_t mask = (1 << ffaudio[astrm]->channels) - 1;
2143 channels |= mask << ffaudio[astrm]->channel0;
2145 if( !astream ) break;
2147 channel_mask = channels;
2152 int FFMPEG::ff_total_video_layers()
2154 return vstrm_index.size();
2157 int FFMPEG::ff_total_vstreams()
2159 return ffvideo.size();
2162 int FFMPEG::ff_video_width(int stream)
2164 return ffvideo[stream]->width;
2167 int FFMPEG::ff_video_height(int stream)
2169 return ffvideo[stream]->height;
2172 int FFMPEG::ff_set_video_width(int stream, int width)
2174 int w = ffvideo[stream]->width;
2175 ffvideo[stream]->width = width;
2179 int FFMPEG::ff_set_video_height(int stream, int height)
2181 int h = ffvideo[stream]->height;
2182 ffvideo[stream]->height = height;
2186 int FFMPEG::ff_coded_width(int stream)
2188 AVStream *st = ffvideo[stream]->st;
2189 return st->codec->coded_width;
2192 int FFMPEG::ff_coded_height(int stream)
2194 AVStream *st = ffvideo[stream]->st;
2195 return st->codec->coded_height;
2198 float FFMPEG::ff_aspect_ratio(int stream)
2200 return ffvideo[stream]->aspect_ratio;
2203 const char* FFMPEG::ff_video_format(int stream)
2205 AVStream *st = ffvideo[stream]->st;
2206 AVCodecID id = st->codec->codec_id;
2207 const AVCodecDescriptor *desc = avcodec_descriptor_get(id);
2208 return desc ? desc->name : "Unknown";
2211 double FFMPEG::ff_frame_rate(int stream)
2213 return ffvideo[stream]->frame_rate;
2216 int64_t FFMPEG::ff_video_frames(int stream)
2218 return ffvideo[stream]->length;
2221 int FFMPEG::ff_video_pid(int stream)
2223 return ffvideo[stream]->st->id;
2227 int FFMPEG::ff_cpus()
2229 return file_base->file->cpus;
2232 int FFVideoStream::create_filter(const char *filter_spec,
2233 AVCodecContext *src_ctx, AVCodecContext *sink_ctx)
2235 avfilter_register_all();
2236 AVFilter *filter = avfilter_get_by_name(filter_spec);
2237 if( !filter || filter->inputs->type != AVMEDIA_TYPE_VIDEO ) {
2238 ff_err(AVERROR(EINVAL), "FFVideoStream::create_filter: %s\n", filter_spec);
2241 filter_graph = avfilter_graph_alloc();
2242 AVFilter *buffersrc = avfilter_get_by_name("buffer");
2243 AVFilter *buffersink = avfilter_get_by_name("buffersink");
2245 int ret = 0; char args[BCTEXTLEN];
2246 snprintf(args, sizeof(args),
2247 "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
2248 src_ctx->width, src_ctx->height, src_ctx->pix_fmt,
2249 src_ctx->time_base.num, src_ctx->time_base.den,
2250 src_ctx->sample_aspect_ratio.num, src_ctx->sample_aspect_ratio.den);
2252 ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
2253 args, NULL, filter_graph);
2255 ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
2256 NULL, NULL, filter_graph);
2258 ret = av_opt_set_bin(buffersink_ctx, "pix_fmts",
2259 (uint8_t*)&sink_ctx->pix_fmt, sizeof(sink_ctx->pix_fmt),
2260 AV_OPT_SEARCH_CHILDREN);
2262 ff_err(ret, "FFVideoStream::create_filter");
2264 ret = FFStream::create_filter(filter_spec);
2265 return ret >= 0 ? 0 : 1;
2268 int FFAudioStream::create_filter(const char *filter_spec,
2269 AVCodecContext *src_ctx, AVCodecContext *sink_ctx)
2271 avfilter_register_all();
2272 AVFilter *filter = avfilter_get_by_name(filter_spec);
2273 if( !filter || filter->inputs->type != AVMEDIA_TYPE_AUDIO ) {
2274 ff_err(AVERROR(EINVAL), "FFAudioStream::create_filter: %s\n", filter_spec);
2277 filter_graph = avfilter_graph_alloc();
2278 AVFilter *buffersrc = avfilter_get_by_name("abuffer");
2279 AVFilter *buffersink = avfilter_get_by_name("abuffersink");
2280 int ret = 0; char args[BCTEXTLEN];
2281 snprintf(args, sizeof(args),
2282 "time_base=%d/%d:sample_rate=%d:sample_fmt=%s:channel_layout=0x%jx",
2283 src_ctx->time_base.num, src_ctx->time_base.den, src_ctx->sample_rate,
2284 av_get_sample_fmt_name(src_ctx->sample_fmt), src_ctx->channel_layout);
2286 ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
2287 args, NULL, filter_graph);
2289 ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
2290 NULL, NULL, filter_graph);
2292 ret = av_opt_set_bin(buffersink_ctx, "sample_fmts",
2293 (uint8_t*)&sink_ctx->sample_fmt, sizeof(sink_ctx->sample_fmt),
2294 AV_OPT_SEARCH_CHILDREN);
2296 ret = av_opt_set_bin(buffersink_ctx, "channel_layouts",
2297 (uint8_t*)&sink_ctx->channel_layout,
2298 sizeof(sink_ctx->channel_layout), AV_OPT_SEARCH_CHILDREN);
2300 ret = av_opt_set_bin(buffersink_ctx, "sample_rates",
2301 (uint8_t*)&sink_ctx->sample_rate, sizeof(sink_ctx->sample_rate),
2302 AV_OPT_SEARCH_CHILDREN);
2304 ff_err(ret, "FFAudioStream::create_filter");
2306 ret = FFStream::create_filter(filter_spec);
2307 return ret >= 0 ? 0 : 1;
2310 int FFStream::create_filter(const char *filter_spec)
2312 /* Endpoints for the filter graph. */
2313 AVFilterInOut *outputs = avfilter_inout_alloc();
2314 outputs->name = av_strdup("in");
2315 outputs->filter_ctx = buffersrc_ctx;
2316 outputs->pad_idx = 0;
2319 AVFilterInOut *inputs = avfilter_inout_alloc();
2320 inputs->name = av_strdup("out");
2321 inputs->filter_ctx = buffersink_ctx;
2322 inputs->pad_idx = 0;
2325 int ret = !outputs->name || !inputs->name ? -1 : 0;
2327 ret = avfilter_graph_parse_ptr(filter_graph, filter_spec,
2328 &inputs, &outputs, NULL);
2330 ret = avfilter_graph_config(filter_graph, NULL);
2333 ff_err(ret, "FFStream::create_filter");
2334 avfilter_inout_free(&inputs);
2335 avfilter_inout_free(&outputs);
2339 void FFStream::add_bsfilter(const char *bsf, const char *ap)
2341 bsfilter.append(new BSFilter(bsf,ap));
2344 int FFStream::bs_filter(AVPacket *pkt)
2346 if( !bsfilter.size() ) return 0;
2347 av_packet_split_side_data(pkt);
2350 for( int i=0; i<bsfilter.size(); ++i ) {
2351 AVPacket bspkt = *pkt;
2352 ret = av_bitstream_filter_filter(bsfilter[i]->bsfc,
2353 st->codec, bsfilter[i]->args, &bspkt.data, &bspkt.size,
2354 pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY);
2355 if( ret < 0 ) break;
2356 int size = bspkt.size;
2357 uint8_t *data = bspkt.data;
2358 if( !ret && bspkt.data != pkt->data ) {
2360 data = (uint8_t *)av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
2361 if( !data ) { ret = AVERROR(ENOMEM); break; }
2362 memcpy(data, bspkt.data, size);
2363 memset(data+size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
2367 pkt->side_data = 0; pkt->side_data_elems = 0;
2368 av_free_packet(pkt);
2369 ret = av_packet_from_data(&bspkt, data, size);
2370 if( ret < 0 ) break;
2375 ff_err(ret,"FFStream::bs_filter");
2379 int FFMPEG::scan(IndexState *index_state, int64_t *scan_position, int *canceled)
2382 av_init_packet(&pkt);
2383 AVFrame *frame = av_frame_alloc();
2385 fprintf(stderr, "FFMPEG::scan: av_frame_alloc failed\n");
2389 index_state->add_video_markers(ffvideo.size());
2390 index_state->add_audio_markers(ffaudio.size());
2392 for( int i=0; i<(int)fmt_ctx->nb_streams; ++i ) {
2393 AVDictionary *copts = 0;
2394 av_dict_copy(&copts, opts, 0);
2395 AVStream *st = fmt_ctx->streams[i];
2396 AVCodecID codec_id = st->codec->codec_id;
2397 AVCodec *decoder = avcodec_find_decoder(codec_id);
2398 if( avcodec_open2(st->codec, decoder, &copts) < 0 )
2399 fprintf(stderr, "FFMPEG::scan: codec open failed\n");
2400 av_dict_free(&copts);
2403 for( int64_t count=0; !*canceled; ++count ) {
2404 av_packet_unref(&pkt);
2405 pkt.data = 0; pkt.size = 0;
2407 int ret = av_read_frame(fmt_ctx, &pkt);
2409 if( ret == AVERROR_EOF ) break;
2410 if( ++errs > 100 ) {
2411 ff_err(ret, "over 100 read_frame errs\n");
2416 if( !pkt.data ) continue;
2417 int i = pkt.stream_index;
2418 if( i < 0 || i >= (int)fmt_ctx->nb_streams ) continue;
2419 AVStream *st = fmt_ctx->streams[i];
2420 AVCodecContext *avctx = st->codec;
2421 if( pkt.pos > *scan_position ) *scan_position = pkt.pos;
2423 switch( avctx->codec_type ) {
2424 case AVMEDIA_TYPE_VIDEO: {
2425 int vidx = ffvideo.size();
2426 while( --vidx>=0 && ffvideo[vidx]->fidx != i );
2427 if( vidx < 0 ) break;
2428 FFVideoStream *vid = ffvideo[vidx];
2429 int64_t tstmp = pkt.dts;
2430 if( tstmp == AV_NOPTS_VALUE ) tstmp = pkt.pts;
2431 if( tstmp != AV_NOPTS_VALUE && (pkt.flags & AV_PKT_FLAG_KEY) && pkt.pos > 0 ) {
2432 if( vid->nudge != AV_NOPTS_VALUE ) tstmp -= vid->nudge;
2433 double secs = to_secs(tstmp, st->time_base);
2434 int64_t frm = secs * vid->frame_rate + 0.5;
2435 if( frm < 0 ) frm = 0;
2436 index_state->put_video_mark(vidx, frm, pkt.pos);
2439 while( pkt.size > 0 ) {
2440 av_frame_unref(frame);
2442 int ret = vid->decode_frame(&pkt, frame, got_frame);
2443 if( ret <= 0 ) break;
2444 // if( got_frame ) {}
2450 case AVMEDIA_TYPE_AUDIO: {
2451 int aidx = ffaudio.size();
2452 while( --aidx>=0 && ffaudio[aidx]->fidx != i );
2453 if( aidx < 0 ) break;
2454 FFAudioStream *aud = ffaudio[aidx];
2455 int64_t tstmp = pkt.pts;
2456 if( tstmp == AV_NOPTS_VALUE ) tstmp = pkt.dts;
2457 if( tstmp != AV_NOPTS_VALUE && (pkt.flags & AV_PKT_FLAG_KEY) && pkt.pos > 0 ) {
2458 if( aud->nudge != AV_NOPTS_VALUE ) tstmp -= aud->nudge;
2459 double secs = to_secs(tstmp, st->time_base);
2460 int64_t sample = secs * aud->sample_rate + 0.5;
2461 if( sample < 0 ) sample = 0;
2462 index_state->put_audio_mark(aidx, sample, pkt.pos);
2464 while( pkt.size > 0 ) {
2465 int ch = aud->channel0, nch = aud->channels;
2466 int64_t pos = index_state->pos(ch);
2467 if( pos != aud->curr_pos ) {
2468 if( abs(pos-aud->curr_pos) > 1 )
2469 printf("audio%d pad %ld %ld (%ld)\n", aud->idx, pos, aud->curr_pos, pos-aud->curr_pos);
2470 index_state->pad_data(ch, nch, aud->curr_pos);
2472 av_frame_unref(frame);
2474 int ret = aud->decode_frame(&pkt, frame, got_frame);
2475 if( ret <= 0 ) break;
2478 int len = aud->get_samples(samples,
2479 &frame->extended_data[0], frame->nb_samples);
2480 for( int i=0; i<nch; ++i )
2481 index_state->put_data(ch+i,nch,samples+i,len);
2482 aud->curr_pos += len;
2491 av_frame_free(&frame);
2495 void FFStream::load_markers(IndexMarks &marks, double rate)
2497 index_markers = &marks;
2499 int64_t sz = marks.size();
2500 int max_entries = fmt_ctx->max_index_size / sizeof(AVIndexEntry) - 1;
2501 int nb_ent = st->nb_index_entries;
2502 // some formats already have an index
2504 AVIndexEntry *ep = &st->index_entries[nb_ent-1];
2505 int64_t tstmp = ep->timestamp;
2506 if( nudge != AV_NOPTS_VALUE ) tstmp -= nudge;
2507 double secs = ffmpeg->to_secs(tstmp, st->time_base);
2508 int64_t no = secs * rate;
2509 while( in < sz && marks[in].no <= no ) ++in;
2511 int64_t len = sz - in;
2512 int64_t count = max_entries - nb_ent;
2513 if( count > len ) count = len;
2514 for( int i=0; i<count; ++i ) {
2515 int k = in + i * len / count;
2516 int64_t no = marks[k].no, pos = marks[k].pos;
2517 double secs = (double)no / rate;
2518 int64_t tstmp = secs * st->time_base.den / st->time_base.num;
2519 if( nudge != AV_NOPTS_VALUE ) tstmp += nudge;
2520 av_add_index_entry(st, pos, tstmp, 0, 0, AVINDEX_KEYFRAME);