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lavc/videotoolbox_vp9: fix vpcC flags offset

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Write the 24-bit vpcC flags field at the current cursor position after
the version byte. The previous code wrote to p+1 instead of p, leaving
one byte uninitialized between version and flags and shifting all
subsequent fields (profile, level, bitdepth, etc.) by one byte.

Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
(cherry picked from commit 19c4bcae68a16ea893b0558d720dd4a2ecd58f0f)
This commit is contained in:
Jun Zhao
2026-04-12 22:25:44 +08:00
parent 0fa756d03d
commit 7f5c90f77e
1 changed files with 1 additions and 1 deletions
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libavcodec/videotoolbox_vp9.c
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@@ -83,7 +83,7 @@ CFDataRef ff_videotoolbox_vpcc_extradata_create(AVCodecContext *avctx)
p = vt_extradata; p = vt_extradata;
*p++ = 1; /* version */ *p++ = 1; /* version */
AV_WB24(p + 1, 0); /* flags */ AV_WB24(p, 0); /* flags */
p += 3; p += 3;
*p++ = h->h.profile; *p++ = h->h.profile;