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rawdec: add check on sample_rate

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Prevent error condition in case sample_rate is unset or set to a negative
value. In particular, fix divide-by-zero error occurring in ffmpeg due to
sample_rate set to 0 in output_packet(), in code:

                ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
                    ist->st->codec->sample_rate;

Fix trac ticket #324.
This commit is contained in:
Stefano Sabatini 2011-10-27 01:38:21 +02:00
parent 8dc90371b1
commit aa638b4600
1 changed files with 6 additions and 0 deletions
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6
libavformat/rawdec.c
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@ -56,6 +56,12 @@ int ff_raw_read_header(AVFormatContext *s, AVFormatParameters *ap)
if (s1 && s1->sample_rate)
st->codec->sample_rate = s1->sample_rate;
if (st->codec->sample_rate <= 0) {
av_log(s, AV_LOG_ERROR, "Invalid sample rate %d specified\n",
st->codec->sample_rate);
return AVERROR(EINVAL);
}
if (s1 && s1->channels)
st->codec->channels = s1->channels;