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Check NUV per-frame header for validity.

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Since it contains dimensions parsing an invalid one has rather
annoying effects.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
This commit is contained in:
Reimar Döffinger
2011-11-05 23:13:07 +01:00
parent 4e6413c67d
commit 6f3ebcc320
1 changed files with 2 additions and 2 deletions
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4
libavcodec/nuv.c
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@@ -184,8 +184,8 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
}
if (c->codec_frameheader) {
int w, h, q;
if (buf_size < 12) {
av_log(avctx, AV_LOG_ERROR, "invalid nuv video frame\n");
if (buf[0] != 'V' || buf_size < 12) {
av_log(avctx, AV_LOG_ERROR, "invalid nuv video frame (wrong codec_tag?)\n");
return -1;
}
w = AV_RL16(&buf[6]);