Re: [RFC 03/10] v4l: Add sunxi Video Engine pixel format

2016-11-14 Thread Hans Verkuil 
On 08/25/2016 11:39 AM, Florent Revest wrote:
> Add support for the allwinner's proprietary pixel format described in
> details here: http://linux-sunxi.org/File:Ve_tile_format_v1.pdf
> 
> This format is similar to V4L2_PIX_FMT_NV12M but the planes are divided
> in tiles of 32x32px.
> 
> Signed-off-by: Florent Revest 
> ---
>  include/uapi/linux/videodev2.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index 904c44c..96e034d 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -627,6 +627,7 @@ struct v4l2_pix_format {
>  #define V4L2_PIX_FMT_Y8I  v4l2_fourcc('Y', '8', 'I', ' ') /* Greyscale 
> 8-bit L/R interleaved */
>  #define V4L2_PIX_FMT_Y12I v4l2_fourcc('Y', '1', '2', 'I') /* Greyscale 
> 12-bit L/R interleaved */
>  #define V4L2_PIX_FMT_Z16  v4l2_fourcc('Z', '1', '6', ' ') /* Depth data 
> 16-bit */
> +#define V4L2_PIX_FMT_SUNXIv4l2_fourcc('S', 'X', 'I', 'Y') /* Sunxi VE's 
> 32x32 tiled NV12 */

This is very similar to V4L2_PIX_FMT_NV12MT_16X16. I think it can be added as
V4L2_PIX_FMT_NV12MT_32X32.

This needs to be documented in the V4L2 spec as well, of course.

Regards,

Hans

>  
>  /* SDR formats - used only for Software Defined Radio devices */
>  #define V4L2_SDR_FMT_CU8  v4l2_fourcc('C', 'U', '0', '8') /* IQ u8 */
>

Re: [RFC 03/10] v4l: Add sunxi Video Engine pixel format

2016-11-14 Thread Hans Verkuil 
On 08/25/2016 11:39 AM, Florent Revest wrote:
> Add support for the allwinner's proprietary pixel format described in
> details here: http://linux-sunxi.org/File:Ve_tile_format_v1.pdf
> 
> This format is similar to V4L2_PIX_FMT_NV12M but the planes are divided
> in tiles of 32x32px.
> 
> Signed-off-by: Florent Revest 
> ---
>  include/uapi/linux/videodev2.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index 904c44c..96e034d 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -627,6 +627,7 @@ struct v4l2_pix_format {
>  #define V4L2_PIX_FMT_Y8I  v4l2_fourcc('Y', '8', 'I', ' ') /* Greyscale 
> 8-bit L/R interleaved */
>  #define V4L2_PIX_FMT_Y12I v4l2_fourcc('Y', '1', '2', 'I') /* Greyscale 
> 12-bit L/R interleaved */
>  #define V4L2_PIX_FMT_Z16  v4l2_fourcc('Z', '1', '6', ' ') /* Depth data 
> 16-bit */
> +#define V4L2_PIX_FMT_SUNXIv4l2_fourcc('S', 'X', 'I', 'Y') /* Sunxi VE's 
> 32x32 tiled NV12 */

This is very similar to V4L2_PIX_FMT_NV12MT_16X16. I think it can be added as
V4L2_PIX_FMT_NV12MT_32X32.

This needs to be documented in the V4L2 spec as well, of course.

Regards,

Hans

>  
>  /* SDR formats - used only for Software Defined Radio devices */
>  #define V4L2_SDR_FMT_CU8  v4l2_fourcc('C', 'U', '0', '8') /* IQ u8 */
>

[RFC 03/10] v4l: Add sunxi Video Engine pixel format

2016-08-25 Thread Florent Revest 
Add support for the allwinner's proprietary pixel format described in
details here: http://linux-sunxi.org/File:Ve_tile_format_v1.pdf

This format is similar to V4L2_PIX_FMT_NV12M but the planes are divided
in tiles of 32x32px.

Signed-off-by: Florent Revest 
---
 include/uapi/linux/videodev2.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 904c44c..96e034d 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -627,6 +627,7 @@ struct v4l2_pix_format {
 #define V4L2_PIX_FMT_Y8I  v4l2_fourcc('Y', '8', 'I', ' ') /* Greyscale 
8-bit L/R interleaved */
 #define V4L2_PIX_FMT_Y12I v4l2_fourcc('Y', '1', '2', 'I') /* Greyscale 
12-bit L/R interleaved */
 #define V4L2_PIX_FMT_Z16  v4l2_fourcc('Z', '1', '6', ' ') /* Depth data 
16-bit */
+#define V4L2_PIX_FMT_SUNXIv4l2_fourcc('S', 'X', 'I', 'Y') /* Sunxi VE's 
32x32 tiled NV12 */
 
 /* SDR formats - used only for Software Defined Radio devices */
 #define V4L2_SDR_FMT_CU8  v4l2_fourcc('C', 'U', '0', '8') /* IQ u8 */
-- 
2.7.4

[RFC 03/10] v4l: Add sunxi Video Engine pixel format

2016-08-25 Thread Florent Revest 
Add support for the allwinner's proprietary pixel format described in
details here: http://linux-sunxi.org/File:Ve_tile_format_v1.pdf

This format is similar to V4L2_PIX_FMT_NV12M but the planes are divided
in tiles of 32x32px.

Signed-off-by: Florent Revest 
---
 include/uapi/linux/videodev2.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 904c44c..96e034d 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -627,6 +627,7 @@ struct v4l2_pix_format {
 #define V4L2_PIX_FMT_Y8I  v4l2_fourcc('Y', '8', 'I', ' ') /* Greyscale 
8-bit L/R interleaved */
 #define V4L2_PIX_FMT_Y12I v4l2_fourcc('Y', '1', '2', 'I') /* Greyscale 
12-bit L/R interleaved */
 #define V4L2_PIX_FMT_Z16  v4l2_fourcc('Z', '1', '6', ' ') /* Depth data 
16-bit */
+#define V4L2_PIX_FMT_SUNXIv4l2_fourcc('S', 'X', 'I', 'Y') /* Sunxi VE's 
32x32 tiled NV12 */
 
 /* SDR formats - used only for Software Defined Radio devices */
 #define V4L2_SDR_FMT_CU8  v4l2_fourcc('C', 'U', '0', '8') /* IQ u8 */
-- 
2.7.4