diff options
Diffstat (limited to 'libavcodec/utils.c')
| -rw-r--r-- | libavcodec/utils.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/libavcodec/utils.c b/libavcodec/utils.c index 965b6c6276..b3a578110b 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -1808,13 +1808,13 @@ static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba, /* calc from frame_bytes, channels, and bits_per_coded_sample */ switch (id) { case AV_CODEC_ID_PCM_DVD: - if(bps<4) + if(bps<4 || frame_bytes<3) return 0; - return 2 * (frame_bytes / ((bps * 2 / 8) * ch)); + return 2 * ((frame_bytes - 3) / ((bps * 2 / 8) * ch)); case AV_CODEC_ID_PCM_BLURAY: - if(bps<4) + if(bps<4 || frame_bytes<4) return 0; - return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8); + return (frame_bytes - 4) / ((FFALIGN(ch, 2) * bps) / 8); case AV_CODEC_ID_S302M: return 2 * (frame_bytes / ((bps + 4) / 4)) / ch; } |