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avcodec/cbs_av1: add a range check to tg_end

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Section 6.10.1 of the AV1 spec states:

It is a requirement of bitstream conformance that the value of tg_start is
equal to the value of TileNum at the point that tile_group_obu is invoked.
It is a requirement of bitstream conformance that the value of tg_end is
greater than or equal to tg_start.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer
2020-10-27 18:25:06 -03:00
parent ddb0e4fecd
commit a876bc9c17
3 changed files with 8 additions and 2 deletions
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libavcodec/cbs_av1.c
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@@ -1205,6 +1205,7 @@ static void cbs_av1_flush(CodedBitstreamContext *ctx)
memset(priv->ref, 0, sizeof(priv->ref));
priv->operating_point_idc = 0;
priv->seen_frame_header = 0;
priv->tile_num = 0;
}
static void cbs_av1_close(CodedBitstreamContext *ctx)