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avconv: fix -frames for video encoders with delay.
Frames must be counted when they are passed to the encoder, not when they come out. Fixes Bug 202.
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parent
9e12002f11
commit
9993284793
20
avconv.c
20
avconv.c
@ -875,6 +875,19 @@ static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
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AVCodecContext *avctx = ost->st->codec;
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int ret;
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/*
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* Audio encoders may split the packets -- #frames in != #packets out.
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* But there is no reordering, so we can limit the number of output packets
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* by simply dropping them here.
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* Counting encoded video frames needs to be done separately because of
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* reordering, see do_video_out()
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*/
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if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
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if (ost->frame_number >= ost->max_frames)
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return;
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ost->frame_number++;
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}
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while (bsfc) {
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AVPacket new_pkt = *pkt;
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int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
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@ -902,7 +915,6 @@ static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
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print_error("av_interleaved_write_frame()", ret);
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exit_program(1);
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}
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ost->frame_number++;
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}
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static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
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@ -1450,6 +1462,12 @@ static void do_video_out(AVFormatContext *s,
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}
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}
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ost->sync_opts++;
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/*
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* For video, number of frames in == number of packets out.
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* But there may be reordering, so we can't throw away frames on encoder
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* flush, we need to limit them here, before they go into encoder.
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*/
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ost->frame_number++;
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}
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}
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