Le mercredi 14 février 2018 à 22:42 -0800, Satish Kumar Nagireddy a écrit :
> From: Jeffrey Mouroux <jmouroux@xxxxxxxxxx>
>
> The Xilinx Video Framebuffer DMA IP supports video memory formats
> that are not represented in the current V4L2 fourcc library. This
> patch adds those missing fourcc codes. This includes both new
> 8-bit and 10-bit pixel formats.
As Hyon spotted, this is missing Documentation/media/uapi/v4l/ doc.
But there is some comment here that can be improved, see next:
>
> Signed-off-by: Satish Kumar Nagireddy <satishna@xxxxxxxxxx>
> ---
> include/uapi/linux/videodev2.h | 11 +++++++++++
> 1 file changed, 11 insertions(+)
>
> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index 9827189..9fa4313c 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -509,7 +509,10 @@ struct v4l2_pix_format {
> #define V4L2_PIX_FMT_XBGR32 v4l2_fourcc('X', 'R', '2', '4') /* 32 BGRX-8-8-8-8 */
> #define V4L2_PIX_FMT_RGB32 v4l2_fourcc('R', 'G', 'B', '4') /* 32 RGB-8-8-8-8 */
> #define V4L2_PIX_FMT_ARGB32 v4l2_fourcc('B', 'A', '2', '4') /* 32 ARGB-8-8-8-8 */
> +#define V4L2_PIX_FMT_BGRA32 v4l2_fourcc('A', 'B', 'G', 'R') /* 32 ABGR-8-8-8-8 */
> #define V4L2_PIX_FMT_XRGB32 v4l2_fourcc('B', 'X', '2', '4') /* 32 XRGB-8-8-8-8 */
> +#define V4L2_PIX_FMT_BGRX32 v4l2_fourcc('X', 'B', 'G', 'R') /* 32 XBGR-8-8-8-8 */
> +#define V4L2_PIX_FMT_XBGR30 v4l2_fourcc('R', 'X', '3', '0') /* 32 XBGR-2-10-10-10 */
>
> /* Grey formats */
> #define V4L2_PIX_FMT_GREY v4l2_fourcc('G', 'R', 'E', 'Y') /* 8 Greyscale */
> @@ -537,12 +540,16 @@ struct v4l2_pix_format {
> #define V4L2_PIX_FMT_VYUY v4l2_fourcc('V', 'Y', 'U', 'Y') /* 16 YUV 4:2:2 */
> #define V4L2_PIX_FMT_Y41P v4l2_fourcc('Y', '4', '1', 'P') /* 12 YUV 4:1:1 */
> #define V4L2_PIX_FMT_YUV444 v4l2_fourcc('Y', '4', '4', '4') /* 16 xxxxyyyy uuuuvvvv */
> +#define V4L2_PIX_FMT_XVUY32 v4l2_fourcc('X', 'V', '3', '2') /* 32 XVUY 8:8:8:8 */
> +#define V4L2_PIX_FMT_AVUY32 v4l2_fourcc('A', 'V', '3', '2') /* 32 AVUY 8:8:8:8 */
> +#define V4L2_PIX_FMT_VUY24 v4l2_fourcc('V', 'U', '2', '4') /* 24 VUY 8:8:8 */
If you read the convention, X:Y:Z is used to illustrate the sub-
sampling. The three previous are representing the number of bits, so
should have a comment like:
XVUY-8-8-8-8
AVUY-8-8-8-8
VUY-8-8-8
> #define V4L2_PIX_FMT_YUV555 v4l2_fourcc('Y', 'U', 'V', 'O') /* 16 YUV-5-5-5 */
> #define V4L2_PIX_FMT_YUV565 v4l2_fourcc('Y', 'U', 'V', 'P') /* 16 YUV-5-6-5 */
> #define V4L2_PIX_FMT_YUV32 v4l2_fourcc('Y', 'U', 'V', '4') /* 32 YUV-8-8-8-8 */
> #define V4L2_PIX_FMT_HI240 v4l2_fourcc('H', 'I', '2', '4') /* 8 8-bit color */
> #define V4L2_PIX_FMT_HM12 v4l2_fourcc('H', 'M', '1', '2') /* 8 YUV 4:2:0 16x16 macroblocks */
> #define V4L2_PIX_FMT_M420 v4l2_fourcc('M', '4', '2', '0') /* 12 YUV 4:2:0 2 lines y, 1 line uv interleaved */
> +#define V4L2_PIX_FMT_XVUY10 v4l2_fourcc('X', 'Y', '1', '0') /* 32 XVUY 2-10-10-10 */
>
> /* two planes -- one Y, one Cr + Cb interleaved */
> #define V4L2_PIX_FMT_NV12 v4l2_fourcc('N', 'V', '1', '2') /* 12 Y/CbCr 4:2:0 */
> @@ -551,6 +558,8 @@ struct v4l2_pix_format {
> #define V4L2_PIX_FMT_NV61 v4l2_fourcc('N', 'V', '6', '1') /* 16 Y/CrCb 4:2:2 */
> #define V4L2_PIX_FMT_NV24 v4l2_fourcc('N', 'V', '2', '4') /* 24 Y/CbCr 4:4:4 */
> #define V4L2_PIX_FMT_NV42 v4l2_fourcc('N', 'V', '4', '2') /* 24 Y/CrCb 4:4:4 */
> +#define V4L2_PIX_FMT_XV20 v4l2_fourcc('X', 'V', '2', '0') /* 32 XY/UV 4:2:2 10-bit */
> +#define V4L2_PIX_FMT_XV15 v4l2_fourcc('X', 'V', '1', '5') /* 32 XY/UV 4:2:0 10-bit */
>
> /* two non contiguous planes - one Y, one Cr + Cb interleaved */
> #define V4L2_PIX_FMT_NV12M v4l2_fourcc('N', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 */
> @@ -558,6 +567,8 @@ struct v4l2_pix_format {
> #define V4L2_PIX_FMT_NV16M v4l2_fourcc('N', 'M', '1', '6') /* 16 Y/CbCr 4:2:2 */
> #define V4L2_PIX_FMT_NV61M v4l2_fourcc('N', 'M', '6', '1') /* 16 Y/CrCb 4:2:2 */
> #define V4L2_PIX_FMT_NV12MT v4l2_fourcc('T', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 64x32 macroblocks */
> +#define V4L2_PIX_FMT_XV20M v4l2_fourcc('X', 'M', '2', '0') /* 32 XY/UV 4:2:2 10-bit */
> +#define V4L2_PIX_FMT_XV15M v4l2_fourcc('X', 'M', '1', '5') /* 32 XY/UV 4:2:0 10-bit */
> #define V4L2_PIX_FMT_NV12MT_16X16 v4l2_fourcc('V', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 16x16 macroblocks */
>
> /* three planes - Y Cb, Cr */
> --
> 2.7.4
>
> This email and any attachments are intended for the sole use of the named recipient(s) and contain(s) confidential information that may be proprietary, privileged or copyrighted under applicable law. If you are not the intended recipient, do not read, copy, or forward this email message or any attachments. Delete this email message and any attachments immediately.Attachment:
signature.asc
Description: This is a digitally signed message part
