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adx: check for unsupported ADX formats

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This commit is contained in:
Justin Ruggles 2011-11-20 17:07:59 -05:00
parent 994238536a
commit d1745619db
1 changed files with 6 additions and 0 deletions
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6
libavcodec/adxdec.c
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@ -89,6 +89,12 @@ static int adx_decode_header(AVCodecContext *avctx, const uint8_t *buf,
if (bufsize < offset || memcmp(buf + offset - 6, "(c)CRI", 6))
return AVERROR_INVALIDDATA;
/* check for encoding=3 block_size=18, sample_size=4 */
if (buf[4] != 3 || buf[5] != 18 || buf[6] != 4) {
av_log_ask_for_sample(avctx, "unsupported ADX format\n");
return AVERROR_PATCHWELCOME;
}
c->channels = avctx->channels = buf[7];
if (avctx->channels > 2)
return AVERROR_INVALIDDATA;