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9750a3b396
The lavf AV1 CBS implementation disables metadata, tile lists and padding,
but movenccenc.c sees the default AV1RawOBU definition. On 32-bit MinGW,
the metadata member raises the union alignment from four to eight bytes,
placing obu at offset 16 in the caller instead of offset 12 in CBS.
Consequently AV1 CENC reads the wrong fields and fails to write tiles.
Move the feature definitions into the common lavf CBS header so that the
parser and its callers use the same AV1RawOBU layout. Keep the reduced
set of parsed OBU types.
Add a FATE encryption/decryption test using the existing nonuniform-tile
AV1 sample. The test fails before this change with GCC -m32 -malign-double
(which reproduces the relevant MinGW layout) and passes afterwards with
the same reference on that configuration and AArch64.
Fixes #23069.
Assisted-by: Fairy
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 05bd55ff6e)