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Subject: media: uapi: h264: clarify expected scaling_list_4x4/8x8 order Author: Jonas Karlman <[email protected]> Date: Tue Oct 29 01:00:51 2019 +0100 Clarify that the expected order of scaling lists should follow the order they are listed in the H264 standard. The expected scaling list order, for 4x4: Intra Y, Intra Cb, Intra Cr, Inter Y, Inter Cb, Inter Cr, for 8x8: Intra Y, Inter Y, Intra Cb, Inter Cb, Intra Cr, Inter Cr. Also clarify that the values in a scaling list should be in matrix order, the same value order that vaapi, vdpau and nvdec use. Signed-off-by: Jonas Karlman <[email protected]> Reviewed-by: Philipp Zabel <[email protected]> Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> Documentation/media/uapi/v4l/ext-ctrls-codec.rst | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) --- diff --git a/Documentation/media/uapi/v4l/ext-ctrls-codec.rst b/Documentation/media/uapi/v4l/ext-ctrls-codec.rst index a1209f68c5e8..28313c0f4e7c 100644 --- a/Documentation/media/uapi/v4l/ext-ctrls-codec.rst +++ b/Documentation/media/uapi/v4l/ext-ctrls-codec.rst @@ -1713,10 +1713,14 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type - * - __u8 - ``scaling_list_4x4[6][16]`` - - + - Scaling matrix after applying the inverse scanning process. + Expected list order is Intra Y, Intra Cb, Intra Cr, Inter Y, + Inter Cb, Inter Cr. * - __u8 - ``scaling_list_8x8[6][64]`` - - + - Scaling matrix after applying the inverse scanning process. + Expected list order is Intra Y, Inter Y, Intra Cb, Inter Cb, + Intra Cr, Inter Cr. ``V4L2_CID_MPEG_VIDEO_H264_SLICE_PARAMS (struct)`` Specifies the slice parameters (as extracted from the bitstream) _______________________________________________ linuxtv-commits mailing list [email protected] https://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
