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smacker: validate channels and sample format.

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(cherry picked from commit ff1f89de2da3472d133e2c95bf7c9ad2d88df33d)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Justin Ruggles 2011-09-21 11:49:33 -04:00 committed by Michael Niedermayer
parent e6b2255329
commit 800ab099e3
1 changed files with 8 additions and 0 deletions
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8
libavcodec/smacker.c
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@ -607,6 +607,14 @@ static int smka_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
av_log(avctx, AV_LOG_ERROR, "Frame is too large to fit in buffer\n"); av_log(avctx, AV_LOG_ERROR, "Frame is too large to fit in buffer\n");
return -1; return -1;
} }
if (stereo ^ (avctx->channels != 1)) {
av_log(avctx, AV_LOG_ERROR, "channels mismatch\n");
return AVERROR(EINVAL);
}
if (bits && avctx->sample_fmt == AV_SAMPLE_FMT_U8) {
av_log(avctx, AV_LOG_ERROR, "sample format mismatch\n");
return AVERROR(EINVAL);
}
memset(vlc, 0, sizeof(VLC) * 4); memset(vlc, 0, sizeof(VLC) * 4);
memset(h, 0, sizeof(HuffContext) * 4); memset(h, 0, sizeof(HuffContext) * 4);