| Message ID | 20221219140139.294245-3-tomi.valkeinen+renesas@ideasonboard.com (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | Kieran Bingham |
| Headers | show |
| Series | media/drm: renesas: Add new pixel formats | expand |
Hi Tomi, Thank you for the patch. On Mon, Dec 19, 2022 at 04:01:34PM +0200, Tomi Valkeinen wrote: > Add Y210, Y212 and Y216 formats. > > Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com> > --- > .../media/v4l/pixfmt-packed-yuv.rst | 44 +++++++++++++++++++ > drivers/media/v4l2-core/v4l2-ioctl.c | 3 ++ > include/uapi/linux/videodev2.h | 8 ++++ > 3 files changed, 55 insertions(+) > > diff --git a/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst b/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst > index bf283a1b5581..3f193e5fd5cb 100644 > --- a/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst > +++ b/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst > @@ -337,6 +337,50 @@ components horizontally by 2, storing 2 pixels in 4 bytes. I would patch the above sentence to mention that it applies to 8 bit formats. > - Y'\ :sub:`3` > - Cb\ :sub:`2` > > +The packed YUYV formats with more than 8 bits per component are stored as four > +16-bit little-endian words. Each word's most significat bits contain one s/significat/significant/ > +component, and the least significant bits are zero padding. > + > +.. tabularcolumns:: |p{3.4cm}|p{1.2cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}| > + > +.. flat-table:: Packed YUV 4:2:2 Formats in 64-bit container > + :header-rows: 1 > + :stub-columns: 0 > + > + * - Identifier > + - Code > + - Word 0 > + - Word 1 > + - Word 2 > + - Word 3 > + * .. _V4L2-PIX-FMT-Y210: > + > + - ``V4L2_PIX_FMT_Y210`` > + - 'Y210' > + > + - Y'\ :sub:`0` (bits 15-6) > + - Cb\ :sub:`0` (bits 15-6) > + - Y'\ :sub:`1` (bits 15-6) > + - Cr\ :sub:`0` (bits 15-6) > + * .. _V4L2-PIX-FMT-Y212: > + > + - ``V4L2_PIX_FMT_Y212`` > + - 'Y212' > + > + - Y'\ :sub:`0` (bits 15-4) > + - Cb\ :sub:`0` (bits 15-4) > + - Y'\ :sub:`1` (bits 15-4) > + - Cr\ :sub:`0` (bits 15-4) > + * .. _V4L2-PIX-FMT-Y216: > + > + - ``V4L2_PIX_FMT_Y216`` > + - 'Y216' > + > + - Y'\ :sub:`0` (bits 15-0) > + - Cb\ :sub:`0` (bits 15-0) > + - Y'\ :sub:`1` (bits 15-0) > + - Cr\ :sub:`0` (bits 15-0) > + > .. raw:: latex > > \normalsize > diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c > index 964300deaf62..ba95389a59b5 100644 > --- a/drivers/media/v4l2-core/v4l2-ioctl.c > +++ b/drivers/media/v4l2-core/v4l2-ioctl.c > @@ -1449,6 +1449,9 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) > case V4L2_META_FMT_RK_ISP1_STAT_3A: descr = "Rockchip ISP1 3A Statistics"; break; > case V4L2_PIX_FMT_NV12M_8L128: descr = "NV12M (8x128 Linear)"; break; > case V4L2_PIX_FMT_NV12M_10BE_8L128: descr = "10-bit NV12M (8x128 Linear, BE)"; break; > + case V4L2_PIX_FMT_Y210: descr = "10-bit YUYV Packed"; break; > + case V4L2_PIX_FMT_Y212: descr = "12-bit YUYV Packed"; break; > + case V4L2_PIX_FMT_Y216: descr = "16-bit YUYV Packed"; break; While the names will not play nicely with future formats that would swap the order of the Y, U and V components, they match the formats defined by DRM, which I think is more important. With the above small issues fixed, Conditionally-Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> > > default: > /* Compressed formats */ > diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h > index 877fd61693b8..15b640d2da8a 100644 > --- a/include/uapi/linux/videodev2.h > +++ b/include/uapi/linux/videodev2.h > @@ -621,6 +621,14 @@ struct v4l2_pix_format { > #define V4L2_PIX_FMT_YUVX32 v4l2_fourcc('Y', 'U', 'V', 'X') /* 32 YUVX-8-8-8-8 */ > #define V4L2_PIX_FMT_M420 v4l2_fourcc('M', '4', '2', '0') /* 12 YUV 4:2:0 2 lines y, 1 line uv interleaved */ > > +/* > + * YCbCr packed format. For each Y2xx format, xx bits of valid data occupy the MSBs > + * of the 16 bit components, and 16-xx bits of zero padding occupy the LSBs. > + */ > +#define V4L2_PIX_FMT_Y210 v4l2_fourcc('Y', '2', '1', '0') /* 32 YUYV 4:2:2 */ > +#define V4L2_PIX_FMT_Y212 v4l2_fourcc('Y', '2', '1', '2') /* 32 YUYV 4:2:2 */ > +#define V4L2_PIX_FMT_Y216 v4l2_fourcc('Y', '2', '1', '6') /* 32 YUYV 4:2:2 */ > + > /* 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 */
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst b/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst index bf283a1b5581..3f193e5fd5cb 100644 --- a/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst +++ b/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst @@ -337,6 +337,50 @@ components horizontally by 2, storing 2 pixels in 4 bytes. - Y'\ :sub:`3` - Cb\ :sub:`2` +The packed YUYV formats with more than 8 bits per component are stored as four +16-bit little-endian words. Each word's most significat bits contain one +component, and the least significant bits are zero padding. + +.. tabularcolumns:: |p{3.4cm}|p{1.2cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}| + +.. flat-table:: Packed YUV 4:2:2 Formats in 64-bit container + :header-rows: 1 + :stub-columns: 0 + + * - Identifier + - Code + - Word 0 + - Word 1 + - Word 2 + - Word 3 + * .. _V4L2-PIX-FMT-Y210: + + - ``V4L2_PIX_FMT_Y210`` + - 'Y210' + + - Y'\ :sub:`0` (bits 15-6) + - Cb\ :sub:`0` (bits 15-6) + - Y'\ :sub:`1` (bits 15-6) + - Cr\ :sub:`0` (bits 15-6) + * .. _V4L2-PIX-FMT-Y212: + + - ``V4L2_PIX_FMT_Y212`` + - 'Y212' + + - Y'\ :sub:`0` (bits 15-4) + - Cb\ :sub:`0` (bits 15-4) + - Y'\ :sub:`1` (bits 15-4) + - Cr\ :sub:`0` (bits 15-4) + * .. _V4L2-PIX-FMT-Y216: + + - ``V4L2_PIX_FMT_Y216`` + - 'Y216' + + - Y'\ :sub:`0` (bits 15-0) + - Cb\ :sub:`0` (bits 15-0) + - Y'\ :sub:`1` (bits 15-0) + - Cr\ :sub:`0` (bits 15-0) + .. raw:: latex \normalsize diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 964300deaf62..ba95389a59b5 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1449,6 +1449,9 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) case V4L2_META_FMT_RK_ISP1_STAT_3A: descr = "Rockchip ISP1 3A Statistics"; break; case V4L2_PIX_FMT_NV12M_8L128: descr = "NV12M (8x128 Linear)"; break; case V4L2_PIX_FMT_NV12M_10BE_8L128: descr = "10-bit NV12M (8x128 Linear, BE)"; break; + case V4L2_PIX_FMT_Y210: descr = "10-bit YUYV Packed"; break; + case V4L2_PIX_FMT_Y212: descr = "12-bit YUYV Packed"; break; + case V4L2_PIX_FMT_Y216: descr = "16-bit YUYV Packed"; break; default: /* Compressed formats */ diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 877fd61693b8..15b640d2da8a 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -621,6 +621,14 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_YUVX32 v4l2_fourcc('Y', 'U', 'V', 'X') /* 32 YUVX-8-8-8-8 */ #define V4L2_PIX_FMT_M420 v4l2_fourcc('M', '4', '2', '0') /* 12 YUV 4:2:0 2 lines y, 1 line uv interleaved */ +/* + * YCbCr packed format. For each Y2xx format, xx bits of valid data occupy the MSBs + * of the 16 bit components, and 16-xx bits of zero padding occupy the LSBs. + */ +#define V4L2_PIX_FMT_Y210 v4l2_fourcc('Y', '2', '1', '0') /* 32 YUYV 4:2:2 */ +#define V4L2_PIX_FMT_Y212 v4l2_fourcc('Y', '2', '1', '2') /* 32 YUYV 4:2:2 */ +#define V4L2_PIX_FMT_Y216 v4l2_fourcc('Y', '2', '1', '6') /* 32 YUYV 4:2:2 */ + /* 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 */
Add Y210, Y212 and Y216 formats. Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com> --- .../media/v4l/pixfmt-packed-yuv.rst | 44 +++++++++++++++++++ drivers/media/v4l2-core/v4l2-ioctl.c | 3 ++ include/uapi/linux/videodev2.h | 8 ++++ 3 files changed, 55 insertions(+)