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WMAL: Do not try to read rawpcm coefficients if bits is invalid

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Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Michael Niedermayer 2012-04-13 07:40:53 -07:00 committed by Martin Storsjö
parent accea4d9d8
commit 680097cb6d
1 changed files with 5 additions and 0 deletions
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5
libavcodec/wmalosslessdec.c
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@ -936,6 +936,11 @@ static int decode_subframe(WmallDecodeCtx *s)
if (rawpcm_tile) {
int bits = s->bits_per_sample - padding_zeroes;
if (bits <= 0) {
av_log(s->avctx, AV_LOG_ERROR,
"Invalid number of padding bits in raw PCM tile\n");
return AVERROR_INVALIDDATA;
}
av_dlog(s->avctx, "RAWPCM %d bits per sample. "
"total %d bits, remain=%d\n", bits,
bits * s->num_channels * subframe_len, get_bits_count(&s->gb));