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mlpdec: validate that the reported channel count matches the actual output

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channel count
(cherry picked from commit caa845851d)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Justin Ruggles 2011-10-12 22:30:44 -04:00 committed by Michael Niedermayer
parent 2c0cddf255
commit 7e95a12d51
1 changed files with 6 additions and 1 deletions
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7
libavcodec/mlpdec.c
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@ -950,7 +950,12 @@ static int output_data_internal(MLPDecodeContext *m, unsigned int substr,
int32_t *data_32 = (int32_t*) data;
int16_t *data_16 = (int16_t*) data;
if (*data_size < (s->max_channel + 1) * s->blockpos * (is32 ? 4 : 2))
if (m->avctx->channels != s->max_matrix_channel + 1) {
av_log(m->avctx, AV_LOG_ERROR, "channel count mismatch\n");
return AVERROR_INVALIDDATA;
}
if (*data_size < m->avctx->channels * s->blockpos * (is32 ? 4 : 2))
return -1;
for (i = 0; i < s->blockpos; i++) {