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lavf/au: check bits per coded sample. 

Without that, it would repeatedly produce empty packets
if the codec if forced to something invalid.

Fix trac ticket #1652.
This commit is contained in:
Nicolas George 2012-08-18 14:12:41 +02:00
parent 7f46f042d1
commit 92b8c9d89e
1 changed files with 4 additions and 1 deletions
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5
libavformat/au.c
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@ -181,10 +181,13 @@ static int au_read_packet(AVFormatContext *s,
AVPacket *pkt)
{
int ret;
int bpcs = av_get_bits_per_sample(s->streams[0]->codec->codec_id);
if (!bpcs)
return AVERROR(EINVAL);
ret= av_get_packet(s->pb, pkt, BLOCK_SIZE *
s->streams[0]->codec->channels *
av_get_bits_per_sample(s->streams[0]->codec->codec_id) >> 3);
bpcs >> 3);
if (ret < 0)
return ret;
pkt->flags &= ~AV_PKT_FLAG_CORRUPT;