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shorten: Fix signedness of comparission
Fixes out of array accessed Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -349,7 +349,7 @@ static int read_header(ShortenContext *s)
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int skip_bytes, blocksize;
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blocksize = get_uint(s, av_log2(DEFAULT_BLOCK_SIZE));
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if (!blocksize || blocksize > MAX_BLOCKSIZE) {
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if (!blocksize || blocksize > (unsigned)MAX_BLOCKSIZE) {
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av_log(s->avctx, AV_LOG_ERROR, "invalid or unsupported block size: %d\n",
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blocksize);
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return AVERROR(EINVAL);
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@ -499,7 +499,7 @@ static int shorten_decode_frame(AVCodecContext *avctx, void *data,
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av_log(avctx, AV_LOG_ERROR, "Increasing block size is not supported\n");
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return AVERROR_PATCHWELCOME;
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}
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if (!blocksize || blocksize > MAX_BLOCKSIZE) {
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if (!blocksize || blocksize > (unsigned)MAX_BLOCKSIZE) {
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av_log(avctx, AV_LOG_ERROR, "invalid or unsupported "
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"block size: %d\n", blocksize);
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return AVERROR(EINVAL);
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