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exr: check version too 

Separate version from flags.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2013-02-20 10:32:22 +00:00
parent 8902f5b89c
commit 3456891291
1 changed files with 9 additions and 3 deletions
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12
libavcodec/exr.c
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@ -236,7 +236,7 @@ static int decode_frame(AVCodecContext *avctx,
AVFrame *const p = &s->picture;
uint8_t *ptr;
int i, x, y, stride, magic_number, version_flag, ret;
int i, x, y, stride, magic_number, version, flags, ret;
int w = 0;
int h = 0;
unsigned int xmin = ~0;
@ -271,8 +271,14 @@ static int decode_frame(AVCodecContext *avctx,
return AVERROR_INVALIDDATA;
}
version_flag = bytestream_get_le32(&buf);
if ((version_flag & 0x200) == 0x200) {
version = bytestream_get_byte(&buf);
if (version != 2) {
av_log(avctx, AV_LOG_ERROR, "Unsupported version %d\n", version);
return AVERROR_PATCHWELCOME;
}
flags = bytestream_get_le24(&buf);
if (flags & 0x2) {
av_log(avctx, AV_LOG_ERROR, "Tile based images are not supported\n");
return AVERROR_PATCHWELCOME;
}