| Message ID | 4eb46df4bb84da00560c6c757cd661a1d00e76fb.1671071730.git.ming.qian@nxp.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | media: imx-jpeg: Add support for 12 bit extended | expand |
On 20/12/2022 04:11, Ming Qian wrote: > Y312 is a YUV format with 12-bits per component like YUV24, > expanded to 16bits. > Data in the 12 high bits, zeros in the 4 low bits, > arranged in little endian order. > > Signed-off-by: Ming Qian <ming.qian@nxp.com> > --- > .../media/v4l/pixfmt-packed-yuv.rst | 28 +++++++++++++++++++ > drivers/media/v4l2-core/v4l2-common.c | 1 + > drivers/media/v4l2-core/v4l2-ioctl.c | 1 + > include/uapi/linux/videodev2.h | 1 + > 4 files changed, 31 insertions(+) > > diff --git a/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst b/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst > index 39ded0b1e65c..a91c30ba6b73 100644 > --- a/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst > +++ b/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst > @@ -257,6 +257,34 @@ the second byte and Y'\ :sub:`7-0` in the third byte. > - The padding bits contain undefined values that must be ignored by all > applications and drivers. > > +The next lists the packed YUV 4:4:4 formats with more than 8 bits per component. > +expand the bits per component to 16 bits, data in the high bits, zeros in the low bits, > +arranged in little endian order. storing 1 pixels in 6 bytes. > + > +.. flat-table:: Packed YUV 4:4:4 Image Formats (more than 8bpc) > + :header-rows: 1 > + :stub-columns: 0 > + > + * - Identifier > + - Code > + - Byte 1-0 > + - Byte 3-2 > + - Byte 5-4 > + - Byte 7-6 > + - Byte 9-8 > + - Byte 11-10 > + > + * .. _V4L2-PIX-FMT-Y312: > + > + - ``V4L2_PIX_FMT_Y312`` > + - 'Y312' > + > + - Y'\ :sub:`0` > + - Cb\ :sub:`0` > + - Cr\ :sub:`0` > + - Y'\ :sub:`1` > + - Cb\ :sub:`1` > + - Cr\ :sub:`1` > > 4:2:2 Subsampling > ================= > diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c > index 21ace56fac04..332d4b11bc1b 100644 > --- a/drivers/media/v4l2-core/v4l2-common.c > +++ b/drivers/media/v4l2-core/v4l2-common.c > @@ -259,6 +259,7 @@ const struct v4l2_format_info *v4l2_format_info(u32 format) > { .format = V4L2_PIX_FMT_UYVY, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 2, .vdiv = 1 }, > { .format = V4L2_PIX_FMT_VYUY, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 2, .vdiv = 1 }, > { .format = V4L2_PIX_FMT_Y212, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 2, .vdiv = 1 }, > + { .format = V4L2_PIX_FMT_Y312, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 6, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 }, > > /* YUV planar formats */ > { .format = V4L2_PIX_FMT_NV12, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 1, 2, 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 4d5f722b674a..5b97d7e5dbbf 100644 > --- a/drivers/media/v4l2-core/v4l2-ioctl.c > +++ b/drivers/media/v4l2-core/v4l2-ioctl.c > @@ -1343,6 +1343,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) > case V4L2_PIX_FMT_HI240: descr = "8-bit Dithered RGB (BTTV)"; break; > case V4L2_PIX_FMT_M420: descr = "YUV 4:2:0 (M420)"; break; > case V4L2_PIX_FMT_Y212: descr = "12-bit Depth YUYV 4:2:2"; break; > + case V4L2_PIX_FMT_Y312: descr = "12-bit Depth YUV 4:4:4"; break; > case V4L2_PIX_FMT_NV12: descr = "Y/UV 4:2:0"; break; > case V4L2_PIX_FMT_NV21: descr = "Y/VU 4:2:0"; break; > case V4L2_PIX_FMT_NV16: descr = "Y/UV 4:2:2"; break; > diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h > index b8a501dccfa4..3475331737af 100644 > --- a/include/uapi/linux/videodev2.h > +++ b/include/uapi/linux/videodev2.h > @@ -619,6 +619,7 @@ 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 */ > #define V4L2_PIX_FMT_Y212 v4l2_fourcc('Y', '2', '1', '2') /* 32 YUYV 12-bit per component */ > +#define V4L2_PIX_FMT_Y312 v4l2_fourcc('Y', '3', '1', '2') /* 48 YUV 4:4:4 12-bit per component */ YUV24_12 would work, I think. Y312 suggests a greyscale format, so that's definitely wrong. Regards, Hans > > /* 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 */
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst b/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst index 39ded0b1e65c..a91c30ba6b73 100644 --- a/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst +++ b/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst @@ -257,6 +257,34 @@ the second byte and Y'\ :sub:`7-0` in the third byte. - The padding bits contain undefined values that must be ignored by all applications and drivers. +The next lists the packed YUV 4:4:4 formats with more than 8 bits per component. +expand the bits per component to 16 bits, data in the high bits, zeros in the low bits, +arranged in little endian order. storing 1 pixels in 6 bytes. + +.. flat-table:: Packed YUV 4:4:4 Image Formats (more than 8bpc) + :header-rows: 1 + :stub-columns: 0 + + * - Identifier + - Code + - Byte 1-0 + - Byte 3-2 + - Byte 5-4 + - Byte 7-6 + - Byte 9-8 + - Byte 11-10 + + * .. _V4L2-PIX-FMT-Y312: + + - ``V4L2_PIX_FMT_Y312`` + - 'Y312' + + - Y'\ :sub:`0` + - Cb\ :sub:`0` + - Cr\ :sub:`0` + - Y'\ :sub:`1` + - Cb\ :sub:`1` + - Cr\ :sub:`1` 4:2:2 Subsampling ================= diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c index 21ace56fac04..332d4b11bc1b 100644 --- a/drivers/media/v4l2-core/v4l2-common.c +++ b/drivers/media/v4l2-core/v4l2-common.c @@ -259,6 +259,7 @@ const struct v4l2_format_info *v4l2_format_info(u32 format) { .format = V4L2_PIX_FMT_UYVY, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 2, .vdiv = 1 }, { .format = V4L2_PIX_FMT_VYUY, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 2, .vdiv = 1 }, { .format = V4L2_PIX_FMT_Y212, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 2, .vdiv = 1 }, + { .format = V4L2_PIX_FMT_Y312, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 6, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 }, /* YUV planar formats */ { .format = V4L2_PIX_FMT_NV12, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 1, 2, 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 4d5f722b674a..5b97d7e5dbbf 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1343,6 +1343,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) case V4L2_PIX_FMT_HI240: descr = "8-bit Dithered RGB (BTTV)"; break; case V4L2_PIX_FMT_M420: descr = "YUV 4:2:0 (M420)"; break; case V4L2_PIX_FMT_Y212: descr = "12-bit Depth YUYV 4:2:2"; break; + case V4L2_PIX_FMT_Y312: descr = "12-bit Depth YUV 4:4:4"; break; case V4L2_PIX_FMT_NV12: descr = "Y/UV 4:2:0"; break; case V4L2_PIX_FMT_NV21: descr = "Y/VU 4:2:0"; break; case V4L2_PIX_FMT_NV16: descr = "Y/UV 4:2:2"; break; diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index b8a501dccfa4..3475331737af 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -619,6 +619,7 @@ 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 */ #define V4L2_PIX_FMT_Y212 v4l2_fourcc('Y', '2', '1', '2') /* 32 YUYV 12-bit per component */ +#define V4L2_PIX_FMT_Y312 v4l2_fourcc('Y', '3', '1', '2') /* 48 YUV 4:4:4 12-bit per component */ /* 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 */
Y312 is a YUV format with 12-bits per component like YUV24, expanded to 16bits. Data in the 12 high bits, zeros in the 4 low bits, arranged in little endian order. Signed-off-by: Ming Qian <ming.qian@nxp.com> --- .../media/v4l/pixfmt-packed-yuv.rst | 28 +++++++++++++++++++ drivers/media/v4l2-core/v4l2-common.c | 1 + drivers/media/v4l2-core/v4l2-ioctl.c | 1 + include/uapi/linux/videodev2.h | 1 + 4 files changed, 31 insertions(+)