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shorten: check output buffer size before decoding

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Justin Ruggles 2011-09-16 18:01:28 -04:00 committed by Michael Niedermayer
parent e1ea35fb52
commit b08001e00a
1 changed files with 6 additions and 0 deletions
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6
libavcodec/shorten.c
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@ -481,6 +481,12 @@ static int shorten_decode_frame(AVCodecContext *avctx,
s->cur_chan++;
if (s->cur_chan == s->channels) {
int out_size = s->blocksize * s->channels *
av_get_bytes_per_sample(avctx->sample_fmt);
if (*data_size < out_size) {
av_log(avctx, AV_LOG_ERROR, "Output buffer is too small\n");
return AVERROR(EINVAL);
}
samples = interleave_buffer(samples, s->channels, s->blocksize, s->decoded);
s->cur_chan = 0;
goto frame_done;