lkml.org 
[lkml]   [2022]   [Feb]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: [RFC PATCH 2/8] media: Add P010 format
    From
    Date
    Le dimanche 27 février 2022 à 15:49 +0100, Jernej Skrabec a écrit :
    > Add P010 format, which is commonly used for 10-bit videos.

    There is a much more complete patch that was sent previously (with documentation
    and all):

    https://patchwork.kernel.org/project/linux-rockchip/patch/20210618131526.566762-5-benjamin.gaignard@collabora.com/

    regards,
    Nicolas

    >
    > Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
    > ---
    > drivers/media/v4l2-core/v4l2-common.c | 2 ++
    > drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
    > include/uapi/linux/videodev2.h | 1 +
    > 3 files changed, 4 insertions(+)
    >
    > diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
    > index 1db0020e08c0..4ede36546e9c 100644
    > --- a/drivers/media/v4l2-core/v4l2-common.c
    > +++ b/drivers/media/v4l2-core/v4l2-common.c
    > @@ -275,6 +275,8 @@ const struct v4l2_format_info *v4l2_format_info(u32 format)
    > { .format = V4L2_PIX_FMT_YUV422P, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 3, .bpp = { 1, 1, 1, 0 }, .hdiv = 2, .vdiv = 1 },
    > { .format = V4L2_PIX_FMT_GREY, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 1, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
    >
    > + { .format = V4L2_PIX_FMT_P010, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 2, 4, 0, 0 }, .hdiv = 2, .vdiv = 2 },
    > +
    > /* Tiled YUV formats */
    > { .format = V4L2_PIX_FMT_NV12_4L4, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 1, 2, 0, 0 }, .hdiv = 2, .vdiv = 2 },
    > { .format = V4L2_PIX_FMT_P010_4L4, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 2, 4, 0, 0 }, .hdiv = 2, .vdiv = 2 },
    > diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
    > index 048f326c57b9..a8d999e23e5b 100644
    > --- a/drivers/media/v4l2-core/v4l2-ioctl.c
    > +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
    > @@ -1295,6 +1295,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
    > case V4L2_PIX_FMT_M420: descr = "YUV 4:2:0 (M420)"; break;
    > case V4L2_PIX_FMT_NV12: descr = "Y/CbCr 4:2:0"; break;
    > case V4L2_PIX_FMT_NV21: descr = "Y/CrCb 4:2:0"; break;
    > + case V4L2_PIX_FMT_P010: descr = "10-bit Y/CbCr 4:2:0"; break;
    > case V4L2_PIX_FMT_NV16: descr = "Y/CbCr 4:2:2"; break;
    > case V4L2_PIX_FMT_NV61: descr = "Y/CrCb 4:2:2"; break;
    > case V4L2_PIX_FMT_NV24: descr = "Y/CbCr 4:4:4"; break;
    > diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
    > index 772dbadd1a24..211bc11a48cb 100644
    > --- a/include/uapi/linux/videodev2.h
    > +++ b/include/uapi/linux/videodev2.h
    > @@ -597,6 +597,7 @@ struct v4l2_pix_format {
    > /* 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 */
    > #define V4L2_PIX_FMT_NV21 v4l2_fourcc('N', 'V', '2', '1') /* 12 Y/CrCb 4:2:0 */
    > +#define V4L2_PIX_FMT_P010 v4l2_fourcc('P', '0', '1', '0') /* 24 Y/CbCr 4:2:0 10-bit */
    > #define V4L2_PIX_FMT_NV16 v4l2_fourcc('N', 'V', '1', '6') /* 16 Y/CbCr 4:2:2 */
    > #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 */

    \
     
     \ /
      Last update: 2022-02-28 13:49    [W:3.120 / U:2.256 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site