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| author | Nicolas Gaullier <nicolas.gaullier@cji.paris> | 2020-03-05 09:17:21 +0100 |
|---|---|---|
| committer | Anton Khirnov <anton@khirnov.net> | 2020-03-20 09:16:05 +0100 |
| commit | eb88ccb92e05018b1060cf8126b30eeeff551d3b (patch) | |
| tree | ad22339ee2a2311b4107b69bfa4c839abbcc3370 | |
| parent | fa41be5743374b5044c7d89a5eaddf4e7e8d3caf (diff) | |
| download | ffmpeg-eb88ccb92e05018b1060cf8126b30eeeff551d3b.tar.gz | |
avcodec/mpeg12dec: Do not alter avctx->rc_buffer_size
Signed-off-by: Anton Khirnov <anton@khirnov.net>
| -rw-r--r-- | libavcodec/mpeg12dec.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/libavcodec/mpeg12dec.c b/libavcodec/mpeg12dec.c index 3927200e74..d553da45bc 100644 --- a/libavcodec/mpeg12dec.c +++ b/libavcodec/mpeg12dec.c @@ -64,6 +64,7 @@ typedef struct Mpeg1Context { int slice_count; AVRational save_aspect; int save_width, save_height, save_progressive_seq; + int rc_buffer_size; AVRational frame_rate_ext; /* MPEG-2 specific framerate modificator */ int sync; /* Did we reach a sync point like a GOP/SEQ/KEYFrame? */ int tmpgexs; @@ -1417,7 +1418,7 @@ static void mpeg_decode_sequence_extension(Mpeg1Context *s1) bit_rate_ext = get_bits(&s->gb, 12); /* XXX: handle it */ s->bit_rate += (bit_rate_ext << 18) * 400LL; check_marker(s->avctx, &s->gb, "after bit rate extension"); - s->avctx->rc_buffer_size += get_bits(&s->gb, 8) * 1024 * 16 << 10; + s1->rc_buffer_size += get_bits(&s->gb, 8) * 1024 * 16 << 10; s->low_delay = get_bits1(&s->gb); if (s->avctx->flags & AV_CODEC_FLAG_LOW_DELAY) @@ -1433,7 +1434,7 @@ static void mpeg_decode_sequence_extension(Mpeg1Context *s1) av_log(s->avctx, AV_LOG_DEBUG, "profile: %d, level: %d ps: %d cf:%d vbv buffer: %d, bitrate:%"PRId64"\n", s->avctx->profile, s->avctx->level, s->progressive_sequence, s->chroma_format, - s->avctx->rc_buffer_size, s->bit_rate); + s1->rc_buffer_size, s->bit_rate); } static void mpeg_decode_sequence_display_extension(Mpeg1Context *s1) @@ -2118,7 +2119,7 @@ static int mpeg1_decode_sequence(AVCodecContext *avctx, return AVERROR_INVALIDDATA; } - s->avctx->rc_buffer_size = get_bits(&s->gb, 10) * 1024 * 16; + s1->rc_buffer_size = get_bits(&s->gb, 10) * 1024 * 16; skip_bits(&s->gb, 1); /* get matrix */ @@ -2167,7 +2168,7 @@ static int mpeg1_decode_sequence(AVCodecContext *avctx, if (s->avctx->debug & FF_DEBUG_PICT_INFO) av_log(s->avctx, AV_LOG_DEBUG, "vbv buffer: %d, bitrate:%"PRId64", aspect_ratio_info: %d \n", - s->avctx->rc_buffer_size, s->bit_rate, s->aspect_ratio_info); + s1->rc_buffer_size, s->bit_rate, s->aspect_ratio_info); return 0; } |