the imx8 jpeg codec support ISO/IEC 10918-1 Standard Baseline and
Extended Sequential DCT modes.
it can support 8-bit and 12-bit per color samples.
Currently we only enable the 8-bit jpeg,
and we can enable the 12-bit extended jpeg
with the new defined 12 bit pixel format.
v2
- correct the new 12-bit format naming according to Hans's comments
Ming Qian (10):
media: Add P012 and P012M video format
media: Add Y012 video format
media: Add YUYV_12 video format
media: Add YUV24_12 video format
media: Add BGR24_12 video format
media: Add ABGR32_12 video format
media: imx-jpeg: Refine the function mxc_jpeg_find_format
media: imx-jpeg: Clear slot next desc ptr if config error
media: imx-jpeg: Decoder add support for 12bit jpeg
media: imx-jpeg: Encoder add support for 12bit jpeg
.../media/v4l/pixfmt-packed-yuv.rst | 70 ++++
.../userspace-api/media/v4l/pixfmt-rgb.rst | 44 +++
.../media/v4l/pixfmt-yuv-luma.rst | 11 +
.../media/v4l/pixfmt-yuv-planar.rst | 94 +++++
.../media/platform/nxp/imx-jpeg/mxc-jpeg-hw.c | 19 +-
.../media/platform/nxp/imx-jpeg/mxc-jpeg-hw.h | 5 +-
.../media/platform/nxp/imx-jpeg/mxc-jpeg.c | 326 ++++++++++++++++--
drivers/media/v4l2-core/v4l2-common.c | 6 +
drivers/media/v4l2-core/v4l2-ioctl.c | 7 +
include/uapi/linux/videodev2.h | 9 +
10 files changed, 565 insertions(+), 26 deletions(-)
--
2.38.1
P012 is a YUV format with 12-bits per component with interleaved UV,
like NV12, expanded to 16 bits.
Data in the 12 high bits, zeros in the 4 low bits,
arranged in little endian order.
And P012M has two non contiguous planes.
Signed-off-by: Ming Qian <[email protected]>
---
.../media/v4l/pixfmt-yuv-planar.rst | 94 +++++++++++++++++++
drivers/media/v4l2-core/v4l2-common.c | 2 +
drivers/media/v4l2-core/v4l2-ioctl.c | 2 +
include/uapi/linux/videodev2.h | 2 +
4 files changed, 100 insertions(+)
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst b/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
index f1d5bb7b806d..aa37c3de8808 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
@@ -123,6 +123,20 @@ All components are stored with the same number of bits per component.
- Cb, Cr
- Yes
- 4x4 tiles
+ * - V4L2_PIX_FMT_P012
+ - 'P012'
+ - 12
+ - 4:2:0
+ - Cb, Cr
+ - Yes
+ - Linear
+ * - V4L2_PIX_FMT_P012M
+ - 'PM12'
+ - 12
+ - 4:2:0
+ - Cb, Cr
+ - Yes
+ - Linear
* - V4L2_PIX_FMT_NV16
- 'NV16'
- 8
@@ -586,6 +600,86 @@ Data in the 10 high bits, zeros in the 6 low bits, arranged in little endian ord
- Cb\ :sub:`11`
- Cr\ :sub:`11`
+.. _V4L2-PIX-FMT-P012:
+.. _V4L2-PIX-FMT-P012M:
+
+P012 and P012M
+--------------
+
+P012 is like NV12 with 12 bits per component, expanded to 16 bits.
+Data in the 12 high bits, zeros in the 4 low bits, arranged in little endian order.
+
+.. flat-table:: Sample 4x4 P012 Image
+ :header-rows: 0
+ :stub-columns: 0
+
+ * - start + 0:
+ - Y'\ :sub:`00`
+ - Y'\ :sub:`01`
+ - Y'\ :sub:`02`
+ - Y'\ :sub:`03`
+ * - start + 8:
+ - Y'\ :sub:`10`
+ - Y'\ :sub:`11`
+ - Y'\ :sub:`12`
+ - Y'\ :sub:`13`
+ * - start + 16:
+ - Y'\ :sub:`20`
+ - Y'\ :sub:`21`
+ - Y'\ :sub:`22`
+ - Y'\ :sub:`23`
+ * - start + 24:
+ - Y'\ :sub:`30`
+ - Y'\ :sub:`31`
+ - Y'\ :sub:`32`
+ - Y'\ :sub:`33`
+ * - start + 32:
+ - Cb\ :sub:`00`
+ - Cr\ :sub:`00`
+ - Cb\ :sub:`01`
+ - Cr\ :sub:`01`
+ * - start + 40:
+ - Cb\ :sub:`10`
+ - Cr\ :sub:`10`
+ - Cb\ :sub:`11`
+ - Cr\ :sub:`11`
+
+.. flat-table:: Sample 4x4 P012M Image
+ :header-rows: 0
+ :stub-columns: 0
+
+ * - start0 + 0:
+ - Y'\ :sub:`00`
+ - Y'\ :sub:`01`
+ - Y'\ :sub:`02`
+ - Y'\ :sub:`03`
+ * - start0 + 8:
+ - Y'\ :sub:`10`
+ - Y'\ :sub:`11`
+ - Y'\ :sub:`12`
+ - Y'\ :sub:`13`
+ * - start0 + 16:
+ - Y'\ :sub:`20`
+ - Y'\ :sub:`21`
+ - Y'\ :sub:`22`
+ - Y'\ :sub:`23`
+ * - start0 + 24:
+ - Y'\ :sub:`30`
+ - Y'\ :sub:`31`
+ - Y'\ :sub:`32`
+ - Y'\ :sub:`33`
+ * -
+ * - start1 + 0:
+ - Cb\ :sub:`00`
+ - Cr\ :sub:`00`
+ - Cb\ :sub:`01`
+ - Cr\ :sub:`01`
+ * - start1 + 8:
+ - Cb\ :sub:`10`
+ - Cr\ :sub:`10`
+ - Cb\ :sub:`11`
+ - Cr\ :sub:`11`
+
Fully Planar YUV Formats
========================
diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
index 40f56e044640..a5e8ba370d33 100644
--- a/drivers/media/v4l2-core/v4l2-common.c
+++ b/drivers/media/v4l2-core/v4l2-common.c
@@ -267,6 +267,7 @@ const struct v4l2_format_info *v4l2_format_info(u32 format)
{ .format = V4L2_PIX_FMT_NV24, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 1, 2, 0, 0 }, .hdiv = 1, .vdiv = 1 },
{ .format = V4L2_PIX_FMT_NV42, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 1, 2, 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, 2, 0, 0 }, .hdiv = 2, .vdiv = 1 },
+ { .format = V4L2_PIX_FMT_P012, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 2, 4, 0, 0 }, .hdiv = 2, .vdiv = 2 },
{ .format = V4L2_PIX_FMT_YUV410, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 3, .bpp = { 1, 1, 1, 0 }, .hdiv = 4, .vdiv = 4 },
{ .format = V4L2_PIX_FMT_YVU410, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 3, .bpp = { 1, 1, 1, 0 }, .hdiv = 4, .vdiv = 4 },
@@ -292,6 +293,7 @@ const struct v4l2_format_info *v4l2_format_info(u32 format)
{ .format = V4L2_PIX_FMT_NV21M, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 2, .comp_planes = 2, .bpp = { 1, 2, 0, 0 }, .hdiv = 2, .vdiv = 2 },
{ .format = V4L2_PIX_FMT_NV16M, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 2, .comp_planes = 2, .bpp = { 1, 2, 0, 0 }, .hdiv = 2, .vdiv = 1 },
{ .format = V4L2_PIX_FMT_NV61M, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 2, .comp_planes = 2, .bpp = { 1, 2, 0, 0 }, .hdiv = 2, .vdiv = 1 },
+ { .format = V4L2_PIX_FMT_P012M, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 2, .comp_planes = 2, .bpp = { 2, 4, 0, 0 }, .hdiv = 2, .vdiv = 2 },
/* Bayer RGB formats */
{ .format = V4L2_PIX_FMT_SBGGR8, .pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 1, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 8e0a0ff62a70..067dbdd0a9ef 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1348,6 +1348,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_PIX_FMT_NV24: descr = "Y/UV 4:4:4"; break;
case V4L2_PIX_FMT_NV42: descr = "Y/VU 4:4:4"; break;
case V4L2_PIX_FMT_P010: descr = "10-bit Y/UV 4:2:0"; break;
+ case V4L2_PIX_FMT_P012: descr = "12-bit Y/UV 4:2:0"; break;
case V4L2_PIX_FMT_NV12_4L4: descr = "Y/UV 4:2:0 (4x4 Linear)"; break;
case V4L2_PIX_FMT_NV12_16L16: descr = "Y/UV 4:2:0 (16x16 Linear)"; break;
case V4L2_PIX_FMT_NV12_32L32: descr = "Y/UV 4:2:0 (32x32 Linear)"; break;
@@ -1358,6 +1359,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_PIX_FMT_NV61M: descr = "Y/VU 4:2:2 (N-C)"; break;
case V4L2_PIX_FMT_NV12MT: descr = "Y/UV 4:2:0 (64x32 MB, N-C)"; break;
case V4L2_PIX_FMT_NV12MT_16X16: descr = "Y/UV 4:2:0 (16x16 MB, N-C)"; break;
+ case V4L2_PIX_FMT_P012M: descr = "12-bit Y/UV 4:2:0 (N-C)"; break;
case V4L2_PIX_FMT_YUV420M: descr = "Planar YUV 4:2:0 (N-C)"; break;
case V4L2_PIX_FMT_YVU420M: descr = "Planar YVU 4:2:0 (N-C)"; break;
case V4L2_PIX_FMT_YUV422M: descr = "Planar YUV 4:2:2 (N-C)"; break;
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 1befd181a4cc..5448aa3b7858 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -626,12 +626,14 @@ struct v4l2_pix_format {
#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_P010 v4l2_fourcc('P', '0', '1', '0') /* 24 Y/CbCr 4:2:0 10-bit per component */
+#define V4L2_PIX_FMT_P012 v4l2_fourcc('P', '0', '1', '2') /* 24 Y/CbCr 4:2:0 12-bit per component */
/* 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 */
#define V4L2_PIX_FMT_NV21M v4l2_fourcc('N', 'M', '2', '1') /* 21 Y/CrCb 4:2:0 */
#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_P012M v4l2_fourcc('P', 'M', '1', '2') /* 24 Y/CbCr 4:2:0 12-bit per component */
/* three planes - Y Cb, Cr */
#define V4L2_PIX_FMT_YUV410 v4l2_fourcc('Y', 'U', 'V', '9') /* 9 YUV 4:1:0 */
--
2.38.1
Y012 is a luma-only formats with 12-bits per pixel,
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 <[email protected]>
---
.../userspace-api/media/v4l/pixfmt-yuv-luma.rst | 11 +++++++++++
drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
include/uapi/linux/videodev2.h | 1 +
3 files changed, 13 insertions(+)
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
index 6a387f9df3ba..3ffa29000238 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
@@ -103,6 +103,17 @@ are often referred to as greyscale formats.
- ...
- ...
+ * .. _V4L2-PIX-FMT-Y012:
+
+ - ``V4L2_PIX_FMT_Y012``
+ - 'Y012'
+
+ - Y'\ :sub:`0`\ [3:0] `0000`
+ - Y'\ :sub:`0`\ [11:4]
+ - ...
+ - ...
+ - ...
+
* .. _V4L2-PIX-FMT-Y14:
- ``V4L2_PIX_FMT_Y14``
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 067dbdd0a9ef..0ee730aa6cc7 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1303,6 +1303,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
case V4L2_PIX_FMT_Y10: descr = "10-bit Greyscale"; break;
case V4L2_PIX_FMT_Y12: descr = "12-bit Greyscale"; break;
+ case V4L2_PIX_FMT_Y012: descr = "12-bit Greyscale"; break;
case V4L2_PIX_FMT_Y14: descr = "14-bit Greyscale"; break;
case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break;
case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE"; break;
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 5448aa3b7858..3d8f89bff33c 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -583,6 +583,7 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_Y6 v4l2_fourcc('Y', '0', '6', ' ') /* 6 Greyscale */
#define V4L2_PIX_FMT_Y10 v4l2_fourcc('Y', '1', '0', ' ') /* 10 Greyscale */
#define V4L2_PIX_FMT_Y12 v4l2_fourcc('Y', '1', '2', ' ') /* 12 Greyscale */
+#define V4L2_PIX_FMT_Y012 v4l2_fourcc('Y', '0', '1', '2') /* 12 Greyscale */
#define V4L2_PIX_FMT_Y14 v4l2_fourcc('Y', '1', '4', ' ') /* 14 Greyscale */
#define V4L2_PIX_FMT_Y16 v4l2_fourcc('Y', '1', '6', ' ') /* 16 Greyscale */
#define V4L2_PIX_FMT_Y16_BE v4l2_fourcc_be('Y', '1', '6', ' ') /* 16 Greyscale BE */
--
2.38.1
YUYV_12 is a YUV format with 12-bits per component like YUYV,
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 <[email protected]>
---
.../media/v4l/pixfmt-packed-yuv.rst | 42 +++++++++++++++++++
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, 45 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..bb7169b2cc8d 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst
@@ -341,6 +341,48 @@ components horizontally by 2, storing 2 pixels in 4 bytes.
\normalsize
+The next lists the packed YUV 4:2:2 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 2 pixels in 8 bytes.
+
+.. raw:: latex
+
+ \footnotesize
+
+.. 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 (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
+ - Byte 13-12
+ - Byte 15-14
+ * .. _V4L2-PIX-FMT-YUYV-12:
+
+ - ``V4L2_PIX_FMT_YUYV_12``
+ - 'Y212'
+
+ - Y'\ :sub:`0`
+ - Cb\ :sub:`0`
+ - Y'\ :sub:`1`
+ - Cr\ :sub:`0`
+ - Y'\ :sub:`2`
+ - Cb\ :sub:`2`
+ - Y'\ :sub:`3`
+ - Cr\ :sub:`2`
+
+.. raw:: latex
+
+ \normalsize
+
**Color Sample Location:**
Chroma samples are :ref:`interstitially sited<yuv-chroma-centered>`
horizontally.
diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
index a5e8ba370d33..3a882fb71227 100644
--- a/drivers/media/v4l2-core/v4l2-common.c
+++ b/drivers/media/v4l2-core/v4l2-common.c
@@ -258,6 +258,7 @@ const struct v4l2_format_info *v4l2_format_info(u32 format)
{ .format = V4L2_PIX_FMT_YVYU, .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_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_YUYV_12, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 2, .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 0ee730aa6cc7..928acb9d13ec 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1342,6 +1342,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_PIX_FMT_YUV420: descr = "Planar YUV 4:2:0"; break;
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_YUYV_12: descr = "12-bit Depth YUYV 4:2:2"; 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 3d8f89bff33c..01fd233ff681 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -618,6 +618,7 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_YUVA32 v4l2_fourcc('Y', 'U', 'V', 'A') /* 32 YUVA-8-8-8-8 */
#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_YUYV_12 v4l2_fourcc('Y', '2', '1', '2') /* 32 YUYV 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 */
--
2.38.1
YUV24_12 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 <[email protected]>
---
.../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 bb7169b2cc8d..a098c5e8e609 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-YUV24-12:
+
+ - ``V4L2_PIX_FMT_YUV24_12``
+ - '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 3a882fb71227..b3ad02f8cf11 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_YUYV_12, .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_YUV24_12, .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 928acb9d13ec..711d1b0a8184 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_YUYV_12: descr = "12-bit Depth YUYV 4:2:2"; break;
+ case V4L2_PIX_FMT_YUV24_12: 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 01fd233ff681..3eb188581b83 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_YUYV_12 v4l2_fourcc('Y', '2', '1', '2') /* 32 YUYV 12-bit per component */
+#define V4L2_PIX_FMT_YUV24_12 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 */
--
2.38.1
BGR24_12 is a reversed RGB format with 12 bits per component like BGR24,
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 <[email protected]>
---
.../userspace-api/media/v4l/pixfmt-rgb.rst | 35 +++++++++++++++++++
drivers/media/v4l2-core/v4l2-common.c | 1 +
drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
include/uapi/linux/videodev2.h | 3 ++
4 files changed, 40 insertions(+)
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst b/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst
index 30f51cd33f99..da29ba69c2d9 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst
@@ -763,6 +763,41 @@ nomenclature that instead use the order of components as seen in a 24- or
\normalsize
+More Than 8 Bits Per Component
+==============================
+
+These formats store an RGB triplet in six or eighth bytes, 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.
+
+.. raw:: latex
+
+ \small
+
+.. flat-table:: RGB Formats With More Than 8 Bits Per Component
+ :header-rows: 1
+ :stub-columns: 0
+
+ * - Identifier
+ - Code
+ - Byte 1-0
+ - Byte 3-2
+ - Byte 5-4
+ - Byte 7-6
+ * .. _V4L2-PIX-FMT-BGR24-12:
+
+ - ``V4L2_PIX_FMT_BGR24_12``
+ - 'B312'
+
+ - B\ :sub:`15-4`
+ - G\ :sub:`15-4`
+ - R\ :sub:`15-4`
+ -
+
+.. raw:: latex
+
+ \normalsize
+
Deprecated RGB Formats
======================
diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
index b3ad02f8cf11..024190f82cf1 100644
--- a/drivers/media/v4l2-core/v4l2-common.c
+++ b/drivers/media/v4l2-core/v4l2-common.c
@@ -252,6 +252,7 @@ const struct v4l2_format_info *v4l2_format_info(u32 format)
{ .format = V4L2_PIX_FMT_RGB565, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
{ .format = V4L2_PIX_FMT_RGB555, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
{ .format = V4L2_PIX_FMT_BGR666, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
+ { .format = V4L2_PIX_FMT_BGR24_12, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 6, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
/* YUV packed formats */
{ .format = V4L2_PIX_FMT_YUYV, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 2, .vdiv = 1 },
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 711d1b0a8184..329515786abb 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1298,6 +1298,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_PIX_FMT_BGRX32: descr = "32-bit XBGR 8-8-8-8"; break;
case V4L2_PIX_FMT_RGBA32: descr = "32-bit RGBA 8-8-8-8"; break;
case V4L2_PIX_FMT_RGBX32: descr = "32-bit RGBX 8-8-8-8"; break;
+ case V4L2_PIX_FMT_BGR24_12: descr = "12-bit Depth BGR"; break;
case V4L2_PIX_FMT_GREY: descr = "8-bit Greyscale"; break;
case V4L2_PIX_FMT_Y4: descr = "4-bit Greyscale"; break;
case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 3eb188581b83..ab52a605e6c0 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -577,6 +577,9 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_ARGB32 v4l2_fourcc('B', 'A', '2', '4') /* 32 ARGB-8-8-8-8 */
#define V4L2_PIX_FMT_XRGB32 v4l2_fourcc('B', 'X', '2', '4') /* 32 XRGB-8-8-8-8 */
+/* RGB formats (6 or 8 bytes per pixel) */
+#define V4L2_PIX_FMT_BGR24_12 v4l2_fourcc('B', '3', '1', '2') /* 48 BGR 12-bit per component */
+
/* Grey formats */
#define V4L2_PIX_FMT_GREY v4l2_fourcc('G', 'R', 'E', 'Y') /* 8 Greyscale */
#define V4L2_PIX_FMT_Y4 v4l2_fourcc('Y', '0', '4', ' ') /* 4 Greyscale */
--
2.38.1
ABGR32_12 is a reversed RGB format with alpha channel last,
12 bits per component like ABGR32,
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 <[email protected]>
---
Documentation/userspace-api/media/v4l/pixfmt-rgb.rst | 9 +++++++++
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, 12 insertions(+)
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst b/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst
index da29ba69c2d9..cb60ffe8f860 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst
@@ -793,6 +793,15 @@ arranged in little endian order.
- G\ :sub:`15-4`
- R\ :sub:`15-4`
-
+ * .. _V4L2-PIX-FMT-ABGR32-12:
+
+ - ``V4L2_PIX_FMT_ABGR32_12``
+ - 'B412'
+
+ - B\ :sub:`15-4`
+ - G\ :sub:`15-4`
+ - R\ :sub:`15-4`
+ - A\ :sub:`15-4`
.. raw:: latex
diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
index 024190f82cf1..4b3302a07f83 100644
--- a/drivers/media/v4l2-core/v4l2-common.c
+++ b/drivers/media/v4l2-core/v4l2-common.c
@@ -253,6 +253,7 @@ const struct v4l2_format_info *v4l2_format_info(u32 format)
{ .format = V4L2_PIX_FMT_RGB555, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
{ .format = V4L2_PIX_FMT_BGR666, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
{ .format = V4L2_PIX_FMT_BGR24_12, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 6, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
+ { .format = V4L2_PIX_FMT_ABGR32_12, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 8, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
/* YUV packed formats */
{ .format = V4L2_PIX_FMT_YUYV, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 2, .vdiv = 1 },
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 329515786abb..0f772e19890b 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1299,6 +1299,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_PIX_FMT_RGBA32: descr = "32-bit RGBA 8-8-8-8"; break;
case V4L2_PIX_FMT_RGBX32: descr = "32-bit RGBX 8-8-8-8"; break;
case V4L2_PIX_FMT_BGR24_12: descr = "12-bit Depth BGR"; break;
+ case V4L2_PIX_FMT_ABGR32_12: descr = "12-bit Depth BGRA"; break;
case V4L2_PIX_FMT_GREY: descr = "8-bit Greyscale"; break;
case V4L2_PIX_FMT_Y4: descr = "4-bit Greyscale"; break;
case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index ab52a605e6c0..757ab14e7a6e 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -579,6 +579,7 @@ struct v4l2_pix_format {
/* RGB formats (6 or 8 bytes per pixel) */
#define V4L2_PIX_FMT_BGR24_12 v4l2_fourcc('B', '3', '1', '2') /* 48 BGR 12-bit per component */
+#define V4L2_PIX_FMT_ABGR32_12 v4l2_fourcc('B', '4', '1', '2') /* 64 BGRA 12-bit per component */
/* Grey formats */
#define V4L2_PIX_FMT_GREY v4l2_fourcc('G', 'R', 'E', 'Y') /* 8 Greyscale */
--
2.38.1
clear slot next desc ptr if config error,
otherwise codec will report config error interrupt repeatedly,
it may led to system hang.
Signed-off-by: Ming Qian <[email protected]>
---
drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.c | 5 +++++
drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.h | 1 +
drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c | 1 +
3 files changed, 7 insertions(+)
diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.c b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.c
index ef28122a5ed4..bbd5d6a9fc86 100644
--- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.c
+++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.c
@@ -178,3 +178,8 @@ void mxc_jpeg_set_desc(u32 desc, void __iomem *reg, int slot)
writel(desc | MXC_NXT_DESCPT_EN,
reg + MXC_SLOT_OFFSET(slot, SLOT_NXT_DESCPT_PTR));
}
+
+void mxc_jpeg_clr_desc(void __iomem *reg, int slot)
+{
+ writel(0, reg + MXC_SLOT_OFFSET(slot, SLOT_NXT_DESCPT_PTR));
+}
diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.h b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.h
index ecf3b6562ba2..8b7cd6526efd 100644
--- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.h
+++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.h
@@ -137,6 +137,7 @@ void mxc_jpeg_set_bufsize(struct mxc_jpeg_desc *desc, u32 bufsize);
void mxc_jpeg_set_res(struct mxc_jpeg_desc *desc, u16 w, u16 h);
void mxc_jpeg_set_line_pitch(struct mxc_jpeg_desc *desc, u32 line_pitch);
void mxc_jpeg_set_desc(u32 desc, void __iomem *reg, int slot);
+void mxc_jpeg_clr_desc(void __iomem *reg, int slot);
void mxc_jpeg_set_regs_from_desc(struct mxc_jpeg_desc *desc,
void __iomem *reg);
#endif
diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
index 70b6eea733e7..3f1c9bc4b144 100644
--- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
+++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
@@ -692,6 +692,7 @@ static irqreturn_t mxc_jpeg_dec_irq(int irq, void *priv)
u32 ret = readl(reg + CAST_STATUS12);
dev_err(dev, "Encoder/decoder error, status=0x%08x", ret);
+ mxc_jpeg_clr_desc(reg, slot);
mxc_jpeg_sw_reset(reg);
buf_state = VB2_BUF_STATE_ERROR;
goto buffers_done;
--
2.38.1
enable decoding 12-bit extended jpeg
Signed-off-by: Ming Qian <[email protected]>
---
.../media/platform/nxp/imx-jpeg/mxc-jpeg.c | 136 +++++++++++++++++-
1 file changed, 134 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
index 3f1c9bc4b144..d493fddf114c 100644
--- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
+++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
@@ -87,6 +87,20 @@ static const struct mxc_jpeg_fmt mxc_formats[] = {
.precision = 8,
.is_rgb = 1,
},
+ {
+ .name = "BGR 12bit", /*12-bit BGR packed format*/
+ .fourcc = V4L2_PIX_FMT_BGR24_12,
+ .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_444,
+ .nc = 3,
+ .depth = 36,
+ .mem_planes = 1,
+ .comp_planes = 1,
+ .h_align = 3,
+ .v_align = 3,
+ .flags = MXC_JPEG_FMT_TYPE_RAW,
+ .precision = 12,
+ .is_rgb = 1,
+ },
{
.name = "ABGR", /* ABGR packed format */
.fourcc = V4L2_PIX_FMT_ABGR32,
@@ -101,6 +115,20 @@ static const struct mxc_jpeg_fmt mxc_formats[] = {
.precision = 8,
.is_rgb = 1,
},
+ {
+ .name = "ABGR 12bit", /* 12-bit ABGR packed format */
+ .fourcc = V4L2_PIX_FMT_ABGR32_12,
+ .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_444,
+ .nc = 4,
+ .depth = 48,
+ .mem_planes = 1,
+ .comp_planes = 1,
+ .h_align = 3,
+ .v_align = 3,
+ .flags = MXC_JPEG_FMT_TYPE_RAW,
+ .precision = 12,
+ .is_rgb = 1,
+ },
{
.name = "YUV420", /* 1st plane = Y, 2nd plane = UV */
.fourcc = V4L2_PIX_FMT_NV12M,
@@ -127,6 +155,32 @@ static const struct mxc_jpeg_fmt mxc_formats[] = {
.flags = MXC_JPEG_FMT_TYPE_RAW,
.precision = 8,
},
+ {
+ .name = "YUV420 12bit", /* 1st plane = Y, 2nd plane = UV */
+ .fourcc = V4L2_PIX_FMT_P012M,
+ .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_420,
+ .nc = 3,
+ .depth = 18, /* 6 x 12 bits (4Y + UV) for 4 pixels */
+ .mem_planes = 2,
+ .comp_planes = 2, /* 1 plane Y, 1 plane UV interleaved */
+ .h_align = 4,
+ .v_align = 4,
+ .flags = MXC_JPEG_FMT_TYPE_RAW,
+ .precision = 12,
+ },
+ {
+ .name = "YUV420 12bit", /* 1st plane = Y, 2nd plane = UV */
+ .fourcc = V4L2_PIX_FMT_P012,
+ .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_420,
+ .nc = 3,
+ .depth = 18, /* 6 x 12 bits (4Y + UV) for 4 pixels */
+ .mem_planes = 1,
+ .comp_planes = 2, /* 1 plane Y, 1 plane UV interleaved */
+ .h_align = 4,
+ .v_align = 4,
+ .flags = MXC_JPEG_FMT_TYPE_RAW,
+ .precision = 12,
+ },
{
.name = "YUV422", /* YUYV */
.fourcc = V4L2_PIX_FMT_YUYV,
@@ -140,6 +194,19 @@ static const struct mxc_jpeg_fmt mxc_formats[] = {
.flags = MXC_JPEG_FMT_TYPE_RAW,
.precision = 8,
},
+ {
+ .name = "YUV422 12bit", /* YUYV */
+ .fourcc = V4L2_PIX_FMT_YUYV_12,
+ .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_422,
+ .nc = 3,
+ .depth = 24,
+ .mem_planes = 1,
+ .comp_planes = 1,
+ .h_align = 4,
+ .v_align = 3,
+ .flags = MXC_JPEG_FMT_TYPE_RAW,
+ .precision = 12,
+ },
{
.name = "YUV444", /* YUVYUV */
.fourcc = V4L2_PIX_FMT_YUV24,
@@ -153,6 +220,19 @@ static const struct mxc_jpeg_fmt mxc_formats[] = {
.flags = MXC_JPEG_FMT_TYPE_RAW,
.precision = 8,
},
+ {
+ .name = "YUV444 12bit", /* YUVYUV */
+ .fourcc = V4L2_PIX_FMT_YUV24_12,
+ .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_444,
+ .nc = 3,
+ .depth = 36,
+ .mem_planes = 1,
+ .comp_planes = 1,
+ .h_align = 3,
+ .v_align = 3,
+ .flags = MXC_JPEG_FMT_TYPE_RAW,
+ .precision = 12,
+ },
{
.name = "Gray", /* Gray (Y8/Y12) or Single Comp */
.fourcc = V4L2_PIX_FMT_GREY,
@@ -166,6 +246,19 @@ static const struct mxc_jpeg_fmt mxc_formats[] = {
.flags = MXC_JPEG_FMT_TYPE_RAW,
.precision = 8,
},
+ {
+ .name = "Gray 12bit", /* Gray (Y8/Y12) or Single Comp */
+ .fourcc = V4L2_PIX_FMT_Y012,
+ .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY,
+ .nc = 1,
+ .depth = 12,
+ .mem_planes = 1,
+ .comp_planes = 1,
+ .h_align = 3,
+ .v_align = 3,
+ .flags = MXC_JPEG_FMT_TYPE_RAW,
+ .precision = 12,
+ },
};
#define MXC_JPEG_NUM_FORMATS ARRAY_SIZE(mxc_formats)
@@ -437,17 +530,24 @@ static enum mxc_jpeg_image_format mxc_jpeg_fourcc_to_imgfmt(u32 fourcc)
{
switch (fourcc) {
case V4L2_PIX_FMT_GREY:
+ case V4L2_PIX_FMT_Y012:
return MXC_JPEG_GRAY;
case V4L2_PIX_FMT_YUYV:
+ case V4L2_PIX_FMT_YUYV_12:
return MXC_JPEG_YUV422;
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV12M:
+ case V4L2_PIX_FMT_P012:
+ case V4L2_PIX_FMT_P012M:
return MXC_JPEG_YUV420;
case V4L2_PIX_FMT_YUV24:
+ case V4L2_PIX_FMT_YUV24_12:
return MXC_JPEG_YUV444;
case V4L2_PIX_FMT_BGR24:
+ case V4L2_PIX_FMT_BGR24_12:
return MXC_JPEG_BGR;
case V4L2_PIX_FMT_ABGR32:
+ case V4L2_PIX_FMT_ABGR32_12:
return MXC_JPEG_ABGR;
default:
return MXC_JPEG_INVALID;
@@ -483,6 +583,17 @@ static void mxc_jpeg_addrs(struct mxc_jpeg_desc *desc,
offset;
}
+static bool mxc_jpeg_is_extended_sequential(const struct mxc_jpeg_fmt *fmt)
+{
+ if (!fmt || !(fmt->flags & MXC_JPEG_FMT_TYPE_RAW))
+ return false;
+
+ if (fmt->precision > 8)
+ return true;
+
+ return false;
+}
+
static void notify_eos(struct mxc_jpeg_ctx *ctx)
{
const struct v4l2_event ev = {
@@ -767,24 +878,31 @@ static int mxc_jpeg_fixup_sof(struct mxc_jpeg_sof *sof,
switch (fourcc) {
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV12M:
+ case V4L2_PIX_FMT_P012:
+ case V4L2_PIX_FMT_P012M:
sof->components_no = 3;
sof->comp[0].v = 0x2;
sof->comp[0].h = 0x2;
break;
case V4L2_PIX_FMT_YUYV:
+ case V4L2_PIX_FMT_YUYV_12:
sof->components_no = 3;
sof->comp[0].v = 0x1;
sof->comp[0].h = 0x2;
break;
case V4L2_PIX_FMT_YUV24:
+ case V4L2_PIX_FMT_YUV24_12:
case V4L2_PIX_FMT_BGR24:
+ case V4L2_PIX_FMT_BGR24_12:
default:
sof->components_no = 3;
break;
case V4L2_PIX_FMT_ABGR32:
+ case V4L2_PIX_FMT_ABGR32_12:
sof->components_no = 4;
break;
case V4L2_PIX_FMT_GREY:
+ case V4L2_PIX_FMT_Y012:
sof->components_no = 1;
break;
}
@@ -804,20 +922,27 @@ static int mxc_jpeg_fixup_sos(struct mxc_jpeg_sos *sos,
switch (fourcc) {
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV12M:
+ case V4L2_PIX_FMT_P012:
+ case V4L2_PIX_FMT_P012M:
sos->components_no = 3;
break;
case V4L2_PIX_FMT_YUYV:
+ case V4L2_PIX_FMT_YUYV_12:
sos->components_no = 3;
break;
case V4L2_PIX_FMT_YUV24:
+ case V4L2_PIX_FMT_YUV24_12:
case V4L2_PIX_FMT_BGR24:
+ case V4L2_PIX_FMT_BGR24_12:
default:
sos->components_no = 3;
break;
case V4L2_PIX_FMT_ABGR32:
+ case V4L2_PIX_FMT_ABGR32_12:
sos->components_no = 4;
break;
case V4L2_PIX_FMT_GREY:
+ case V4L2_PIX_FMT_Y012:
sos->components_no = 1;
break;
}
@@ -847,12 +972,15 @@ static unsigned int mxc_jpeg_setup_cfg_stream(void *cfg_stream_vaddr,
u8 *cfg = (u8 *)cfg_stream_vaddr;
struct mxc_jpeg_sof *sof;
struct mxc_jpeg_sos *sos;
+ const struct mxc_jpeg_fmt *fmt = mxc_jpeg_find_format(fourcc);
+
+ if (!fmt)
+ return 0;
memcpy(cfg + offset, jpeg_soi, ARRAY_SIZE(jpeg_soi));
offset += ARRAY_SIZE(jpeg_soi);
- if (fourcc == V4L2_PIX_FMT_BGR24 ||
- fourcc == V4L2_PIX_FMT_ABGR32) {
+ if (fmt->is_rgb) {
memcpy(cfg + offset, jpeg_app14, sizeof(jpeg_app14));
offset += sizeof(jpeg_app14);
} else {
@@ -918,6 +1046,10 @@ static void mxc_jpeg_config_dec_desc(struct vb2_buffer *out_buf,
desc->stm_ctrl &= ~STM_CTRL_IMAGE_FORMAT(0xF); /* clear image format */
desc->stm_ctrl |= STM_CTRL_IMAGE_FORMAT(img_fmt);
desc->stm_ctrl |= STM_CTRL_BITBUF_PTR_CLR(1);
+ if (mxc_jpeg_is_extended_sequential(jpeg_src_buf->fmt))
+ desc->stm_ctrl |= STM_CTRL_PIXEL_PRECISION;
+ else
+ desc->stm_ctrl &= ~STM_CTRL_PIXEL_PRECISION;
desc->line_pitch = q_data_cap->bytesperline[0];
mxc_jpeg_addrs(desc, dst_buf, src_buf, 0);
mxc_jpeg_set_bufsize(desc, ALIGN(vb2_plane_size(src_buf, 0), 1024));
--
2.38.1
enable encoding 12-bit extended jpeg
Signed-off-by: Ming Qian <[email protected]>
---
.../media/platform/nxp/imx-jpeg/mxc-jpeg-hw.c | 14 +-
.../media/platform/nxp/imx-jpeg/mxc-jpeg-hw.h | 4 +-
.../media/platform/nxp/imx-jpeg/mxc-jpeg.c | 172 +++++++++++++++++-
3 files changed, 175 insertions(+), 15 deletions(-)
diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.c b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.c
index bbd5d6a9fc86..9a6e8b332e12 100644
--- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.c
+++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.c
@@ -97,25 +97,31 @@ void mxc_jpeg_sw_reset(void __iomem *reg)
writel(GLB_CTRL_SFT_RST, reg + GLB_CTRL);
}
-void mxc_jpeg_enc_mode_conf(struct device *dev, void __iomem *reg)
+void mxc_jpeg_enc_mode_conf(struct device *dev, void __iomem *reg, u8 extseq)
{
dev_dbg(dev, "CAST Encoder CONFIG...\n");
/*
* "Config_Mode" enabled, "Config_Mode auto clear enabled",
*/
- writel(0xa0, reg + CAST_MODE);
+ if (extseq)
+ writel(0xb0, reg + CAST_MODE);
+ else
+ writel(0xa0, reg + CAST_MODE);
/* all markers and segments */
writel(0x3ff, reg + CAST_CFG_MODE);
}
-void mxc_jpeg_enc_mode_go(struct device *dev, void __iomem *reg)
+void mxc_jpeg_enc_mode_go(struct device *dev, void __iomem *reg, u8 extseq)
{
dev_dbg(dev, "CAST Encoder GO...\n");
/*
* "GO" enabled, "GO bit auto clear" enabled
*/
- writel(0x140, reg + CAST_MODE);
+ if (extseq)
+ writel(0x150, reg + CAST_MODE);
+ else
+ writel(0x140, reg + CAST_MODE);
}
void mxc_jpeg_enc_set_quality(struct device *dev, void __iomem *reg, u8 quality)
diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.h b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.h
index 8b7cd6526efd..ed15ea348f97 100644
--- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.h
+++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.h
@@ -117,8 +117,8 @@ void print_wrapper_info(struct device *dev, void __iomem *reg);
void mxc_jpeg_sw_reset(void __iomem *reg);
int mxc_jpeg_enable(void __iomem *reg);
void wait_frmdone(struct device *dev, void __iomem *reg);
-void mxc_jpeg_enc_mode_conf(struct device *dev, void __iomem *reg);
-void mxc_jpeg_enc_mode_go(struct device *dev, void __iomem *reg);
+void mxc_jpeg_enc_mode_conf(struct device *dev, void __iomem *reg, u8 extseq);
+void mxc_jpeg_enc_mode_go(struct device *dev, void __iomem *reg, u8 extseq);
void mxc_jpeg_enc_set_quality(struct device *dev, void __iomem *reg, u8 quality);
void mxc_jpeg_dec_mode_go(struct device *dev, void __iomem *reg);
int mxc_jpeg_get_slot(void __iomem *reg);
diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
index d493fddf114c..289d8c62b61e 100644
--- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
+++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
@@ -322,6 +322,45 @@ static const unsigned char jpeg_dqt[] = {
0x63, 0x63, 0x63, 0x63, 0x63, 0x63
};
+static const unsigned char jpeg_dqt_extseq[] = {
+ 0xFF, 0xDB,
+ 0x01, 0x04,
+ 0x10,
+ 0x00, 0x80, 0x00, 0x58, 0x00, 0x60, 0x00, 0x70,
+ 0x00, 0x60, 0x00, 0x50, 0x00, 0x80, 0x00, 0x70,
+ 0x00, 0x68, 0x00, 0x70, 0x00, 0x90, 0x00, 0x88,
+ 0x00, 0x80, 0x00, 0x98, 0x00, 0xC0, 0x01, 0x40,
+ 0x00, 0xD0, 0x00, 0xC0, 0x00, 0xB0, 0x00, 0xB0,
+ 0x00, 0xC0, 0x01, 0x88, 0x01, 0x18, 0x01, 0x28,
+ 0x00, 0xE8, 0x01, 0x40, 0x01, 0xD0, 0x01, 0x98,
+ 0x01, 0xE8, 0x01, 0xE0, 0x01, 0xC8, 0x01, 0x98,
+ 0x01, 0xC0, 0x01, 0xB8, 0x02, 0x00, 0x02, 0x40,
+ 0x02, 0xE0, 0x02, 0x70, 0x02, 0x00, 0x02, 0x20,
+ 0x02, 0xB8, 0x02, 0x28, 0x01, 0xB8, 0x01, 0xC0,
+ 0x02, 0x80, 0x03, 0x68, 0x02, 0x88, 0x02, 0xB8,
+ 0x02, 0xF8, 0x03, 0x10, 0x03, 0x38, 0x03, 0x40,
+ 0x03, 0x38, 0x01, 0xF0, 0x02, 0x68, 0x03, 0x88,
+ 0x03, 0xC8, 0x03, 0x80, 0x03, 0x20, 0x03, 0xC0,
+ 0x02, 0xE0, 0x03, 0x28, 0x03, 0x38, 0x03, 0x18,
+ 0x11,
+ 0x00, 0x88, 0x00, 0x90, 0x00, 0x90, 0x00, 0xC0,
+ 0x00, 0xA8, 0x00, 0xC0, 0x01, 0x78, 0x00, 0xD0,
+ 0x00, 0xD0, 0x01, 0x78, 0x03, 0x18, 0x02, 0x10,
+ 0x01, 0xC0, 0x02, 0x10, 0x03, 0x18, 0x03, 0x18,
+ 0x03, 0x18, 0x03, 0x18, 0x03, 0x18, 0x03, 0x18,
+ 0x03, 0x18, 0x03, 0x18, 0x03, 0x18, 0x03, 0x18,
+ 0x03, 0x18, 0x03, 0x18, 0x03, 0x18, 0x03, 0x18,
+ 0x03, 0x18, 0x03, 0x18, 0x03, 0x18, 0x03, 0x18,
+ 0x03, 0x18, 0x03, 0x18, 0x03, 0x18, 0x03, 0x18,
+ 0x03, 0x18, 0x03, 0x18, 0x03, 0x18, 0x03, 0x18,
+ 0x03, 0x18, 0x03, 0x18, 0x03, 0x18, 0x03, 0x18,
+ 0x03, 0x18, 0x03, 0x18, 0x03, 0x18, 0x03, 0x18,
+ 0x03, 0x18, 0x03, 0x18, 0x03, 0x18, 0x03, 0x18,
+ 0x03, 0x18, 0x03, 0x18, 0x03, 0x18, 0x03, 0x18,
+ 0x03, 0x18, 0x03, 0x18, 0x03, 0x18, 0x03, 0x18,
+ 0x03, 0x18, 0x03, 0x18, 0x03, 0x18, 0x03, 0x18,
+};
+
static const unsigned char jpeg_sof_maximal[] = {
0xFF, 0xC0,
0x00, 0x14, 0x08, 0x00, 0x40, 0x00, 0x40,
@@ -329,6 +368,13 @@ static const unsigned char jpeg_sof_maximal[] = {
0x03, 0x11, 0x01, 0x04, 0x11, 0x01
};
+static const unsigned char jpeg_sof_extseq[] = {
+ 0xFF, 0xC1,
+ 0x00, 0x14, 0x08, 0x00, 0x40, 0x00, 0x40,
+ 0x04, 0x01, 0x11, 0x00, 0x02, 0x11, 0x01,
+ 0x03, 0x11, 0x01, 0x04, 0x11, 0x01
+};
+
static const unsigned char jpeg_dht[] = {
0xFF, 0xC4,
0x01, 0xA2, 0x00, 0x00, 0x01, 0x05, 0x01,
@@ -393,6 +439,90 @@ static const unsigned char jpeg_dht[] = {
0xF6, 0xF7, 0xF8, 0xF9, 0xFA
};
+static const unsigned char jpeg_dht_extseq[] = {
+ 0xFF, 0xC4,
+ 0x02, 0x2a, 0x00, 0x00, 0x01, 0x05, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01,
+ 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
+ 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+ 0x10, 0x00, 0x02, 0x01, 0x03, 0x03, 0x02,
+ 0x04, 0x03, 0x05, 0x05, 0x02, 0x03, 0x02,
+ 0x00, 0x00, 0xbf, 0x01, 0x02, 0x03, 0x00,
+ 0x04, 0x11, 0x05, 0x12, 0x21, 0x31, 0x41,
+ 0x06, 0x13, 0x51, 0x61, 0x07, 0x22, 0x71,
+ 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08, 0x23,
+ 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0,
+ 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a,
+ 0x16, 0x17, 0x18, 0x19, 0x1a, 0x25, 0x26,
+ 0x27, 0x28, 0x29, 0x2a, 0x34, 0x35, 0x36,
+ 0x37, 0x38, 0x39, 0x3a, 0x43, 0x44, 0x45,
+ 0x46, 0x47, 0x48, 0x49, 0x4a, 0x53, 0x54,
+ 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x63,
+ 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a,
+ 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79,
+ 0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88,
+ 0x89, 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96,
+ 0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, 0xa4,
+ 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2,
+ 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9,
+ 0xba, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
+ 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4, 0xd5,
+ 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2,
+ 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9,
+ 0xea, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6,
+ 0xf7, 0xf8, 0xf9, 0xfa, 0x0b, 0x0c, 0x0d,
+ 0x0e, 0x1b, 0x1c, 0x1d, 0x1e, 0x2b, 0x2c,
+ 0x2d, 0x2e, 0x3b, 0x3c, 0x3d, 0x3e, 0x4b,
+ 0x4c, 0x4d, 0x4e, 0x5b, 0x5c, 0x5d, 0x5e,
+ 0x6b, 0x6c, 0x6d, 0x6e, 0x7b, 0x7c, 0x7d,
+ 0x7e, 0x8b, 0x8c, 0x8d, 0x8e, 0x9b, 0x9c,
+ 0x9d, 0x9e, 0xab, 0xac, 0xad, 0xae, 0xbb,
+ 0xbc, 0xbd, 0xbe, 0xcb, 0xcc, 0xcd, 0xce,
+ 0xdb, 0xdc, 0xdd, 0xde, 0xeb, 0xec, 0xed,
+ 0xee, 0xfb, 0xfc, 0xfd, 0xfe, 0x01, 0x00,
+ 0x01, 0x05, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00,
+ 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05,
+ 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c,
+ 0x0d, 0x0e, 0x0f, 0x11, 0x00, 0x02, 0x01,
+ 0x03, 0x03, 0x02, 0x04, 0x03, 0x05, 0x05,
+ 0x02, 0x03, 0x02, 0x00, 0x00, 0xbf, 0x01,
+ 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12,
+ 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61,
+ 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91,
+ 0xa1, 0x08, 0x23, 0x42, 0xb1, 0xc1, 0x15,
+ 0x52, 0xd1, 0xf0, 0x24, 0x33, 0x62, 0x72,
+ 0x82, 0x09, 0x0a, 0x16, 0x17, 0x18, 0x19,
+ 0x1a, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a,
+ 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a,
+ 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49,
+ 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
+ 0x59, 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67,
+ 0x68, 0x69, 0x6a, 0x73, 0x74, 0x75, 0x76,
+ 0x77, 0x78, 0x79, 0x7a, 0x83, 0x84, 0x85,
+ 0x86, 0x87, 0x88, 0x89, 0x8a, 0x92, 0x93,
+ 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a,
+ 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8,
+ 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6,
+ 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4,
+ 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2,
+ 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9,
+ 0xda, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6,
+ 0xe7, 0xe8, 0xe9, 0xea, 0xf1, 0xf2, 0xf3,
+ 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa,
+ 0x0b, 0x0c, 0x0d, 0x0e, 0x1b, 0x1c, 0x1d,
+ 0x1e, 0x2b, 0x2c, 0x2d, 0x2e, 0x3b, 0x3c,
+ 0x3d, 0x3e, 0x4b, 0x4c, 0x4d, 0x4e, 0x5b,
+ 0x5c, 0x5d, 0x5e, 0x6b, 0x6c, 0x6d, 0x6e,
+ 0x7b, 0x7c, 0x7d, 0x7e, 0x8b, 0x8c, 0x8d,
+ 0x8e, 0x9b, 0x9c, 0x9d, 0x9e, 0xab, 0xac,
+ 0xad, 0xae, 0xbb, 0xbc, 0xbd, 0xbe, 0xcb,
+ 0xcc, 0xcd, 0xce, 0xdb, 0xdc, 0xdd, 0xde,
+ 0xeb, 0xec, 0xed, 0xee, 0xfb, 0xfc, 0xfd,
+ 0xfe,
+};
+
static const unsigned char jpeg_dri[] = {
0xFF, 0xDD,
0x00, 0x04, 0x00, 0x20
@@ -802,7 +932,8 @@ static irqreturn_t mxc_jpeg_dec_irq(int irq, void *priv)
if (dec_ret & SLOT_STATUS_ENC_CONFIG_ERR) {
u32 ret = readl(reg + CAST_STATUS12);
- dev_err(dev, "Encoder/decoder error, status=0x%08x", ret);
+ dev_err(dev, "Encoder/decoder error, dec_ret = 0x%08x, status=0x%08x",
+ dec_ret, ret);
mxc_jpeg_clr_desc(reg, slot);
mxc_jpeg_sw_reset(reg);
buf_state = VB2_BUF_STATE_ERROR;
@@ -814,10 +945,11 @@ static irqreturn_t mxc_jpeg_dec_irq(int irq, void *priv)
if (jpeg->mode == MXC_JPEG_ENCODE &&
ctx->enc_state == MXC_JPEG_ENC_CONF) {
+ q_data = mxc_jpeg_get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
ctx->enc_state = MXC_JPEG_ENCODING;
dev_dbg(dev, "Encoder config finished. Start encoding...\n");
mxc_jpeg_enc_set_quality(dev, reg, ctx->jpeg_quality);
- mxc_jpeg_enc_mode_go(dev, reg);
+ mxc_jpeg_enc_mode_go(dev, reg, mxc_jpeg_is_extended_sequential(q_data->fmt));
goto job_unlock;
}
if (jpeg->mode == MXC_JPEG_DECODE && jpeg_src_buf->dht_needed) {
@@ -868,8 +1000,12 @@ static int mxc_jpeg_fixup_sof(struct mxc_jpeg_sof *sof,
u16 w, u16 h)
{
int sof_length;
+ const struct mxc_jpeg_fmt *fmt = mxc_jpeg_find_format(fourcc);
- sof->precision = 8; /* TODO allow 8/12 bit precision*/
+ if (fmt)
+ sof->precision = fmt->precision;
+ else
+ sof->precision = 8; /* TODO allow 8/12 bit precision*/
sof->height = h;
_bswap16(&sof->height);
sof->width = w;
@@ -988,16 +1124,28 @@ static unsigned int mxc_jpeg_setup_cfg_stream(void *cfg_stream_vaddr,
offset += sizeof(jpeg_app0);
}
- memcpy(cfg + offset, jpeg_dqt, sizeof(jpeg_dqt));
- offset += sizeof(jpeg_dqt);
+ if (mxc_jpeg_is_extended_sequential(fmt)) {
+ memcpy(cfg + offset, jpeg_dqt_extseq, sizeof(jpeg_dqt_extseq));
+ offset += sizeof(jpeg_dqt_extseq);
+
+ memcpy(cfg + offset, jpeg_sof_extseq, sizeof(jpeg_sof_extseq));
+ } else {
+ memcpy(cfg + offset, jpeg_dqt, sizeof(jpeg_dqt));
+ offset += sizeof(jpeg_dqt);
- memcpy(cfg + offset, jpeg_sof_maximal, sizeof(jpeg_sof_maximal));
+ memcpy(cfg + offset, jpeg_sof_maximal, sizeof(jpeg_sof_maximal));
+ }
offset += 2; /* skip marker ID */
sof = (struct mxc_jpeg_sof *)(cfg + offset);
offset += mxc_jpeg_fixup_sof(sof, fourcc, w, h);
- memcpy(cfg + offset, jpeg_dht, sizeof(jpeg_dht));
- offset += sizeof(jpeg_dht);
+ if (mxc_jpeg_is_extended_sequential(fmt)) {
+ memcpy(cfg + offset, jpeg_dht_extseq, sizeof(jpeg_dht_extseq));
+ offset += sizeof(jpeg_dht_extseq);
+ } else {
+ memcpy(cfg + offset, jpeg_dht, sizeof(jpeg_dht));
+ offset += sizeof(jpeg_dht);
+ }
memcpy(cfg + offset, jpeg_dri, sizeof(jpeg_dri));
offset += sizeof(jpeg_dri);
@@ -1138,6 +1286,10 @@ static void mxc_jpeg_config_enc_desc(struct vb2_buffer *out_buf,
desc->stm_ctrl = STM_CTRL_CONFIG_MOD(0) |
STM_CTRL_IMAGE_FORMAT(img_fmt);
desc->stm_ctrl |= STM_CTRL_BITBUF_PTR_CLR(1);
+ if (mxc_jpeg_is_extended_sequential(q_data->fmt))
+ desc->stm_ctrl |= STM_CTRL_PIXEL_PRECISION;
+ else
+ desc->stm_ctrl &= ~STM_CTRL_PIXEL_PRECISION;
mxc_jpeg_addrs(desc, src_buf, dst_buf, 0);
dev_dbg(jpeg->dev, "cfg_desc:\n");
print_descriptor_info(jpeg->dev, cfg_desc);
@@ -1338,7 +1490,9 @@ static void mxc_jpeg_device_run(void *priv)
ctx->enc_state = MXC_JPEG_ENC_CONF;
mxc_jpeg_config_enc_desc(&dst_buf->vb2_buf, ctx,
&src_buf->vb2_buf, &dst_buf->vb2_buf);
- mxc_jpeg_enc_mode_conf(dev, reg); /* start config phase */
+ /* start config phase */
+ mxc_jpeg_enc_mode_conf(dev, reg,
+ mxc_jpeg_is_extended_sequential(q_data_out->fmt));
} else {
dev_dbg(dev, "Decoding on slot %d\n", ctx->slot);
print_mxc_buf(jpeg, &src_buf->vb2_buf, 0);
--
2.38.1
remove the unused parameter ctx
Signed-off-by: Ming Qian <[email protected]>
---
drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)
diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
index f085f14d676a..70b6eea733e7 100644
--- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
+++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
@@ -420,8 +420,7 @@ static int enum_fmt(const struct mxc_jpeg_fmt *mxc_formats, int n,
return 0;
}
-static const struct mxc_jpeg_fmt *mxc_jpeg_find_format(struct mxc_jpeg_ctx *ctx,
- u32 pixelformat)
+static const struct mxc_jpeg_fmt *mxc_jpeg_find_format(u32 pixelformat)
{
unsigned int k;
@@ -1562,7 +1561,7 @@ static int mxc_jpeg_parse(struct mxc_jpeg_ctx *ctx, struct vb2_buffer *vb)
if (fourcc == 0)
return -EINVAL;
- jpeg_src_buf->fmt = mxc_jpeg_find_format(ctx, fourcc);
+ jpeg_src_buf->fmt = mxc_jpeg_find_format(fourcc);
jpeg_src_buf->w = header.frame.width;
jpeg_src_buf->h = header.frame.height;
ctx->header_parsed = true;
@@ -1702,11 +1701,11 @@ static void mxc_jpeg_set_default_params(struct mxc_jpeg_ctx *ctx)
int i;
if (ctx->mxc_jpeg->mode == MXC_JPEG_ENCODE) {
- out_q->fmt = mxc_jpeg_find_format(ctx, MXC_JPEG_DEFAULT_PFMT);
- cap_q->fmt = mxc_jpeg_find_format(ctx, V4L2_PIX_FMT_JPEG);
+ out_q->fmt = mxc_jpeg_find_format(MXC_JPEG_DEFAULT_PFMT);
+ cap_q->fmt = mxc_jpeg_find_format(V4L2_PIX_FMT_JPEG);
} else {
- out_q->fmt = mxc_jpeg_find_format(ctx, V4L2_PIX_FMT_JPEG);
- cap_q->fmt = mxc_jpeg_find_format(ctx, MXC_JPEG_DEFAULT_PFMT);
+ out_q->fmt = mxc_jpeg_find_format(V4L2_PIX_FMT_JPEG);
+ cap_q->fmt = mxc_jpeg_find_format(MXC_JPEG_DEFAULT_PFMT);
}
for (i = 0; i < 2; i++) {
@@ -1950,7 +1949,7 @@ static int mxc_jpeg_try_fmt(struct v4l2_format *f,
pix_mp->height : MXC_JPEG_MAX_HEIGHT;
int i;
- fmt = mxc_jpeg_find_format(ctx, fourcc);
+ fmt = mxc_jpeg_find_format(fourcc);
if (!fmt || fmt->flags != mxc_jpeg_get_fmt_type(ctx, f->type)) {
dev_warn(ctx->mxc_jpeg->dev, "Format not supported: %c%c%c%c, use the default.\n",
(fourcc & 0xff),
@@ -1958,7 +1957,7 @@ static int mxc_jpeg_try_fmt(struct v4l2_format *f,
(fourcc >> 16) & 0xff,
(fourcc >> 24) & 0xff);
fourcc = mxc_jpeg_get_default_fourcc(ctx, f->type);
- fmt = mxc_jpeg_find_format(ctx, fourcc);
+ fmt = mxc_jpeg_find_format(fourcc);
if (!fmt)
return -EINVAL;
f->fmt.pix_mp.pixelformat = fourcc;
--
2.38.1
Le mercredi 01 février 2023 à 14:02 +0800, Ming Qian a écrit :
> Y012 is a luma-only formats with 12-bits per pixel,
> 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 <[email protected]>
> ---
> .../userspace-api/media/v4l/pixfmt-yuv-luma.rst | 11 +++++++++++
> drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
> include/uapi/linux/videodev2.h | 1 +
> 3 files changed, 13 insertions(+)
>
> diff --git a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
> index 6a387f9df3ba..3ffa29000238 100644
> --- a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
> +++ b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
> @@ -103,6 +103,17 @@ are often referred to as greyscale formats.
> - ...
> - ...
>
> + * .. _V4L2-PIX-FMT-Y012:
Why the 0, can't this be name Y12 (just like Y14) ?
> +
> + - ``V4L2_PIX_FMT_Y012``
> + - 'Y012'
> +
> + - Y'\ :sub:`0`\ [3:0] `0000`
> + - Y'\ :sub:`0`\ [11:4]
> + - ...
> + - ...
> + - ...
> +
> * .. _V4L2-PIX-FMT-Y14:
>
> - ``V4L2_PIX_FMT_Y14``
> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
> index 067dbdd0a9ef..0ee730aa6cc7 100644
> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
> @@ -1303,6 +1303,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
> case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
> case V4L2_PIX_FMT_Y10: descr = "10-bit Greyscale"; break;
> case V4L2_PIX_FMT_Y12: descr = "12-bit Greyscale"; break;
> + case V4L2_PIX_FMT_Y012: descr = "12-bit Greyscale"; break;
> case V4L2_PIX_FMT_Y14: descr = "14-bit Greyscale"; break;
> case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break;
> case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE"; break;
> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index 5448aa3b7858..3d8f89bff33c 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -583,6 +583,7 @@ struct v4l2_pix_format {
> #define V4L2_PIX_FMT_Y6 v4l2_fourcc('Y', '0', '6', ' ') /* 6 Greyscale */
> #define V4L2_PIX_FMT_Y10 v4l2_fourcc('Y', '1', '0', ' ') /* 10 Greyscale */
> #define V4L2_PIX_FMT_Y12 v4l2_fourcc('Y', '1', '2', ' ') /* 12 Greyscale */
> +#define V4L2_PIX_FMT_Y012 v4l2_fourcc('Y', '0', '1', '2') /* 12 Greyscale */
> #define V4L2_PIX_FMT_Y14 v4l2_fourcc('Y', '1', '4', ' ') /* 14 Greyscale */
> #define V4L2_PIX_FMT_Y16 v4l2_fourcc('Y', '1', '6', ' ') /* 16 Greyscale */
> #define V4L2_PIX_FMT_Y16_BE v4l2_fourcc_be('Y', '1', '6', ' ') /* 16 Greyscale BE */
Le mercredi 01 février 2023 à 14:02 +0800, Ming Qian a écrit :
> YUV24_12 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.
In YUV24, 24 is derived from 8x3, but here we have 16x3. So if naming is meant
to be accurate, shouldn't this be YUV48_12 ?
>
> Signed-off-by: Ming Qian <[email protected]>
> ---
> .../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 bb7169b2cc8d..a098c5e8e609 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-YUV24-12:
> +
> + - ``V4L2_PIX_FMT_YUV24_12``
> + - '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 3a882fb71227..b3ad02f8cf11 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_YUYV_12, .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_YUV24_12, .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 928acb9d13ec..711d1b0a8184 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_YUYV_12: descr = "12-bit Depth YUYV 4:2:2"; break;
> + case V4L2_PIX_FMT_YUV24_12: 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 01fd233ff681..3eb188581b83 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_YUYV_12 v4l2_fourcc('Y', '2', '1', '2') /* 32 YUYV 12-bit per component */
> +#define V4L2_PIX_FMT_YUV24_12 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 */
Le mercredi 01 février 2023 à 14:02 +0800, Ming Qian a écrit :
> YUYV_12 is a YUV format with 12-bits per component like YUYV,
> expanded to 16bits.
> Data in the 12 high bits, zeros in the 4 low bits,
> arranged in little endian order.
In following patches, you use a interesting naming convention:
<comp order><word size>_<depth>
I think for this type of format this method works well. So I would like to
suggest calling this one:
V4L2_PIX_FMT_YUYV64_12
Let me know what you think ?
>
> Signed-off-by: Ming Qian <[email protected]>
> ---
> .../media/v4l/pixfmt-packed-yuv.rst | 42 +++++++++++++++++++
> 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, 45 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..bb7169b2cc8d 100644
> --- a/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst
> +++ b/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst
> @@ -341,6 +341,48 @@ components horizontally by 2, storing 2 pixels in 4 bytes.
>
> \normalsize
>
> +The next lists the packed YUV 4:2:2 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 2 pixels in 8 bytes.
> +
> +.. raw:: latex
> +
> + \footnotesize
> +
> +.. 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 (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
> + - Byte 13-12
> + - Byte 15-14
> + * .. _V4L2-PIX-FMT-YUYV-12:
> +
> + - ``V4L2_PIX_FMT_YUYV_12``
> + - 'Y212'
> +
> + - Y'\ :sub:`0`
> + - Cb\ :sub:`0`
> + - Y'\ :sub:`1`
> + - Cr\ :sub:`0`
> + - Y'\ :sub:`2`
> + - Cb\ :sub:`2`
> + - Y'\ :sub:`3`
> + - Cr\ :sub:`2`
> +
> +.. raw:: latex
> +
> + \normalsize
> +
> **Color Sample Location:**
> Chroma samples are :ref:`interstitially sited<yuv-chroma-centered>`
> horizontally.
> diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
> index a5e8ba370d33..3a882fb71227 100644
> --- a/drivers/media/v4l2-core/v4l2-common.c
> +++ b/drivers/media/v4l2-core/v4l2-common.c
> @@ -258,6 +258,7 @@ const struct v4l2_format_info *v4l2_format_info(u32 format)
> { .format = V4L2_PIX_FMT_YVYU, .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_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_YUYV_12, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 2, .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 0ee730aa6cc7..928acb9d13ec 100644
> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
> @@ -1342,6 +1342,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
> case V4L2_PIX_FMT_YUV420: descr = "Planar YUV 4:2:0"; break;
> 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_YUYV_12: descr = "12-bit Depth YUYV 4:2:2"; 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 3d8f89bff33c..01fd233ff681 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -618,6 +618,7 @@ struct v4l2_pix_format {
> #define V4L2_PIX_FMT_YUVA32 v4l2_fourcc('Y', 'U', 'V', 'A') /* 32 YUVA-8-8-8-8 */
> #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_YUYV_12 v4l2_fourcc('Y', '2', '1', '2') /* 32 YUYV 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 */
Le mercredi 01 février 2023 à 14:02 +0800, Ming Qian a écrit :
> YUV24_12 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.
To be accurate, this should be named YUV48_12, since the word has 48bit, not 24.
>
> Signed-off-by: Ming Qian <[email protected]>
> ---
> .../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 bb7169b2cc8d..a098c5e8e609 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-YUV24-12:
> +
> + - ``V4L2_PIX_FMT_YUV24_12``
> + - '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 3a882fb71227..b3ad02f8cf11 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_YUYV_12, .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_YUV24_12, .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 928acb9d13ec..711d1b0a8184 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_YUYV_12: descr = "12-bit Depth YUYV 4:2:2"; break;
> + case V4L2_PIX_FMT_YUV24_12: 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 01fd233ff681..3eb188581b83 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_YUYV_12 v4l2_fourcc('Y', '2', '1', '2') /* 32 YUYV 12-bit per component */
> +#define V4L2_PIX_FMT_YUV24_12 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 */
Le mercredi 01 février 2023 à 14:02 +0800, Ming Qian a écrit :
> BGR24_12 is a reversed RGB format with 12 bits per component like BGR24,
> expanded to 16bits.
> Data in the 12 high bits, zeros in the 4 low bits,
> arranged in little endian order.
I would like to suggest BGR48_12
Nicolas
>
> Signed-off-by: Ming Qian <[email protected]>
> ---
> .../userspace-api/media/v4l/pixfmt-rgb.rst | 35 +++++++++++++++++++
> drivers/media/v4l2-core/v4l2-common.c | 1 +
> drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
> include/uapi/linux/videodev2.h | 3 ++
> 4 files changed, 40 insertions(+)
>
> diff --git a/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst b/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst
> index 30f51cd33f99..da29ba69c2d9 100644
> --- a/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst
> +++ b/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst
> @@ -763,6 +763,41 @@ nomenclature that instead use the order of components as seen in a 24- or
> \normalsize
>
>
> +More Than 8 Bits Per Component
> +==============================
> +
> +These formats store an RGB triplet in six or eighth bytes, 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.
> +
> +.. raw:: latex
> +
> + \small
> +
> +.. flat-table:: RGB Formats With More Than 8 Bits Per Component
> + :header-rows: 1
> + :stub-columns: 0
> +
> + * - Identifier
> + - Code
> + - Byte 1-0
> + - Byte 3-2
> + - Byte 5-4
> + - Byte 7-6
> + * .. _V4L2-PIX-FMT-BGR24-12:
> +
> + - ``V4L2_PIX_FMT_BGR24_12``
> + - 'B312'
> +
> + - B\ :sub:`15-4`
> + - G\ :sub:`15-4`
> + - R\ :sub:`15-4`
> + -
> +
> +.. raw:: latex
> +
> + \normalsize
> +
> Deprecated RGB Formats
> ======================
>
> diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
> index b3ad02f8cf11..024190f82cf1 100644
> --- a/drivers/media/v4l2-core/v4l2-common.c
> +++ b/drivers/media/v4l2-core/v4l2-common.c
> @@ -252,6 +252,7 @@ const struct v4l2_format_info *v4l2_format_info(u32 format)
> { .format = V4L2_PIX_FMT_RGB565, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
> { .format = V4L2_PIX_FMT_RGB555, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
> { .format = V4L2_PIX_FMT_BGR666, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
> + { .format = V4L2_PIX_FMT_BGR24_12, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 6, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
>
> /* YUV packed formats */
> { .format = V4L2_PIX_FMT_YUYV, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 2, .vdiv = 1 },
> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
> index 711d1b0a8184..329515786abb 100644
> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
> @@ -1298,6 +1298,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
> case V4L2_PIX_FMT_BGRX32: descr = "32-bit XBGR 8-8-8-8"; break;
> case V4L2_PIX_FMT_RGBA32: descr = "32-bit RGBA 8-8-8-8"; break;
> case V4L2_PIX_FMT_RGBX32: descr = "32-bit RGBX 8-8-8-8"; break;
> + case V4L2_PIX_FMT_BGR24_12: descr = "12-bit Depth BGR"; break;
> case V4L2_PIX_FMT_GREY: descr = "8-bit Greyscale"; break;
> case V4L2_PIX_FMT_Y4: descr = "4-bit Greyscale"; break;
> case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index 3eb188581b83..ab52a605e6c0 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -577,6 +577,9 @@ struct v4l2_pix_format {
> #define V4L2_PIX_FMT_ARGB32 v4l2_fourcc('B', 'A', '2', '4') /* 32 ARGB-8-8-8-8 */
> #define V4L2_PIX_FMT_XRGB32 v4l2_fourcc('B', 'X', '2', '4') /* 32 XRGB-8-8-8-8 */
>
> +/* RGB formats (6 or 8 bytes per pixel) */
> +#define V4L2_PIX_FMT_BGR24_12 v4l2_fourcc('B', '3', '1', '2') /* 48 BGR 12-bit per component */
> +
> /* Grey formats */
> #define V4L2_PIX_FMT_GREY v4l2_fourcc('G', 'R', 'E', 'Y') /* 8 Greyscale */
> #define V4L2_PIX_FMT_Y4 v4l2_fourcc('Y', '0', '4', ' ') /* 4 Greyscale */
Le mercredi 01 février 2023 à 14:02 +0800, Ming Qian a écrit :
> ABGR32_12 is a reversed RGB format with alpha channel last,
> 12 bits per component like ABGR32,
> expanded to 16bits.
> Data in the 12 high bits, zeros in the 4 low bits,
> arranged in little endian order.
I would like to suggest ABGR64_12
Nicolas
>
> Signed-off-by: Ming Qian <[email protected]>
> ---
> Documentation/userspace-api/media/v4l/pixfmt-rgb.rst | 9 +++++++++
> 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, 12 insertions(+)
>
> diff --git a/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst b/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst
> index da29ba69c2d9..cb60ffe8f860 100644
> --- a/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst
> +++ b/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst
> @@ -793,6 +793,15 @@ arranged in little endian order.
> - G\ :sub:`15-4`
> - R\ :sub:`15-4`
> -
> + * .. _V4L2-PIX-FMT-ABGR32-12:
> +
> + - ``V4L2_PIX_FMT_ABGR32_12``
> + - 'B412'
> +
> + - B\ :sub:`15-4`
> + - G\ :sub:`15-4`
> + - R\ :sub:`15-4`
> + - A\ :sub:`15-4`
>
> .. raw:: latex
>
> diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
> index 024190f82cf1..4b3302a07f83 100644
> --- a/drivers/media/v4l2-core/v4l2-common.c
> +++ b/drivers/media/v4l2-core/v4l2-common.c
> @@ -253,6 +253,7 @@ const struct v4l2_format_info *v4l2_format_info(u32 format)
> { .format = V4L2_PIX_FMT_RGB555, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
> { .format = V4L2_PIX_FMT_BGR666, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
> { .format = V4L2_PIX_FMT_BGR24_12, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 6, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
> + { .format = V4L2_PIX_FMT_ABGR32_12, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 8, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
>
> /* YUV packed formats */
> { .format = V4L2_PIX_FMT_YUYV, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 2, .vdiv = 1 },
> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
> index 329515786abb..0f772e19890b 100644
> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
> @@ -1299,6 +1299,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
> case V4L2_PIX_FMT_RGBA32: descr = "32-bit RGBA 8-8-8-8"; break;
> case V4L2_PIX_FMT_RGBX32: descr = "32-bit RGBX 8-8-8-8"; break;
> case V4L2_PIX_FMT_BGR24_12: descr = "12-bit Depth BGR"; break;
> + case V4L2_PIX_FMT_ABGR32_12: descr = "12-bit Depth BGRA"; break;
> case V4L2_PIX_FMT_GREY: descr = "8-bit Greyscale"; break;
> case V4L2_PIX_FMT_Y4: descr = "4-bit Greyscale"; break;
> case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index ab52a605e6c0..757ab14e7a6e 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -579,6 +579,7 @@ struct v4l2_pix_format {
>
> /* RGB formats (6 or 8 bytes per pixel) */
> #define V4L2_PIX_FMT_BGR24_12 v4l2_fourcc('B', '3', '1', '2') /* 48 BGR 12-bit per component */
> +#define V4L2_PIX_FMT_ABGR32_12 v4l2_fourcc('B', '4', '1', '2') /* 64 BGRA 12-bit per component */
>
> /* Grey formats */
> #define V4L2_PIX_FMT_GREY v4l2_fourcc('G', 'R', 'E', 'Y') /* 8 Greyscale */
>From: Nicolas Dufresne <[email protected]>
>Sent: 2023年2月10日 23:18
>To: Ming Qian <[email protected]>; [email protected]; Mirela Rabulea
>(OSS) <[email protected]>; [email protected]
>Cc: [email protected]; [email protected]; [email protected];
>[email protected]; X.H. Bao <[email protected]>; dl-linux-imx <linux-
>[email protected]>; [email protected]; [email protected];
>[email protected]; [email protected]
>Subject: [EXT] Re: [PATCH v2 02/10] media: Add Y012 video format
>
>Caution: EXT Email
>
>Le mercredi 01 février 2023 à 14:02 +0800, Ming Qian a écrit :
>> Y012 is a luma-only formats with 12-bits per pixel, 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 <[email protected]>
>> ---
>> .../userspace-api/media/v4l/pixfmt-yuv-luma.rst | 11 +++++++++++
>> drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
>> include/uapi/linux/videodev2.h | 1 +
>> 3 files changed, 13 insertions(+)
>>
>> diff --git a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
>> b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
>> index 6a387f9df3ba..3ffa29000238 100644
>> --- a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
>> +++ b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
>> @@ -103,6 +103,17 @@ are often referred to as greyscale formats.
>> - ...
>> - ...
>>
>> + * .. _V4L2-PIX-FMT-Y012:
>
>Why the 0, can't this be name Y12 (just like Y14) ?
>
Hi Nicolas,
As the V4L2_PIX_FMT_Y12 is defined, but it's data is in the 12 low bits, zeros in the high bits.
Here I want to place the 12 bits data in the high bits, with zeros in the 4 low bits.
So I add 0 before 12, I want to say that the low bits are padding data 0.
Or do you have a better suggestion?
Ming
>> +
>> + - ``V4L2_PIX_FMT_Y012``
>> + - 'Y012'
>> +
>> + - Y'\ :sub:`0`\ [3:0] `0000`
>> + - Y'\ :sub:`0`\ [11:4]
>> + - ...
>> + - ...
>> + - ...
>> +
>> * .. _V4L2-PIX-FMT-Y14:
>>
>> - ``V4L2_PIX_FMT_Y14``
>> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c
>> b/drivers/media/v4l2-core/v4l2-ioctl.c
>> index 067dbdd0a9ef..0ee730aa6cc7 100644
>> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
>> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
>> @@ -1303,6 +1303,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc
>*fmt)
>> case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
>> case V4L2_PIX_FMT_Y10: descr = "10-bit Greyscale"; break;
>> case V4L2_PIX_FMT_Y12: descr = "12-bit Greyscale"; break;
>> + case V4L2_PIX_FMT_Y012: descr = "12-bit Greyscale"; break;
>> case V4L2_PIX_FMT_Y14: descr = "14-bit Greyscale"; break;
>> case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break;
>> case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE"; break;
>> diff --git a/include/uapi/linux/videodev2.h
>> b/include/uapi/linux/videodev2.h index 5448aa3b7858..3d8f89bff33c
>> 100644
>> --- a/include/uapi/linux/videodev2.h
>> +++ b/include/uapi/linux/videodev2.h
>> @@ -583,6 +583,7 @@ struct v4l2_pix_format {
>> #define V4L2_PIX_FMT_Y6 v4l2_fourcc('Y', '0', '6', ' ') /* 6 Greyscale */
>> #define V4L2_PIX_FMT_Y10 v4l2_fourcc('Y', '1', '0', ' ') /* 10 Greyscale
>*/
>> #define V4L2_PIX_FMT_Y12 v4l2_fourcc('Y', '1', '2', ' ') /* 12 Greyscale
>*/
>> +#define V4L2_PIX_FMT_Y012 v4l2_fourcc('Y', '0', '1', '2') /* 12 Greyscale
>*/
>> #define V4L2_PIX_FMT_Y14 v4l2_fourcc('Y', '1', '4', ' ') /* 14 Greyscale
>*/
>> #define V4L2_PIX_FMT_Y16 v4l2_fourcc('Y', '1', '6', ' ') /* 16 Greyscale
>*/
>> #define V4L2_PIX_FMT_Y16_BE v4l2_fourcc_be('Y', '1', '6', ' ') /* 16
>> Greyscale BE */
Le lundi 13 février 2023 à 09:22 +0000, Ming Qian a écrit :
> > From: Nicolas Dufresne <[email protected]>
> > Sent: 2023年2月10日 23:18
> > To: Ming Qian <[email protected]>; [email protected]; Mirela Rabulea
> > (OSS) <[email protected]>; [email protected]
> > Cc: [email protected]; [email protected]; [email protected];
> > [email protected]; X.H. Bao <[email protected]>; dl-linux-imx <linux-
> > [email protected]>; [email protected]; [email protected];
> > [email protected]; [email protected]
> > Subject: [EXT] Re: [PATCH v2 02/10] media: Add Y012 video format
> >
> > Caution: EXT Email
> >
> > Le mercredi 01 février 2023 à 14:02 +0800, Ming Qian a écrit :
> > > Y012 is a luma-only formats with 12-bits per pixel, 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 <[email protected]>
> > > ---
> > > .../userspace-api/media/v4l/pixfmt-yuv-luma.rst | 11 +++++++++++
> > > drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
> > > include/uapi/linux/videodev2.h | 1 +
> > > 3 files changed, 13 insertions(+)
> > >
> > > diff --git a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
> > > b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
> > > index 6a387f9df3ba..3ffa29000238 100644
> > > --- a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
> > > +++ b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
> > > @@ -103,6 +103,17 @@ are often referred to as greyscale formats.
> > > - ...
> > > - ...
> > >
> > > + * .. _V4L2-PIX-FMT-Y012:
> >
> > Why the 0, can't this be name Y12 (just like Y14) ?
> >
>
> Hi Nicolas,
> As the V4L2_PIX_FMT_Y12 is defined, but it's data is in the 12 low bits,
> zeros in the high bits.
> Here I want to place the 12 bits data in the high bits, with zeros in the
> 4 low bits.
> So I add 0 before 12, I want to say that the low bits are padding data 0.
>
> Or do you have a better suggestion?
I see, I had missed this aspect. I think in this context, it would be fair
naming. Maybe drop a note in the doc saying just that:
"In contrast to V4L2_PIX_FMT_Y12 format, which have its padding located in the
most significant bits of the 16 bit word".
Or something similar.,
Nicolas
>
> Ming
>
> > > +
> > > + - ``V4L2_PIX_FMT_Y012``
> > > + - 'Y012'
> > > +
> > > + - Y'\ :sub:`0`\ [3:0] `0000`
> > > + - Y'\ :sub:`0`\ [11:4]
> > > + - ...
> > > + - ...
> > > + - ...
> > > +
> > > * .. _V4L2-PIX-FMT-Y14:
> > >
> > > - ``V4L2_PIX_FMT_Y14``
> > > diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c
> > > b/drivers/media/v4l2-core/v4l2-ioctl.c
> > > index 067dbdd0a9ef..0ee730aa6cc7 100644
> > > --- a/drivers/media/v4l2-core/v4l2-ioctl.c
> > > +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
> > > @@ -1303,6 +1303,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc
> > *fmt)
> > > case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
> > > case V4L2_PIX_FMT_Y10: descr = "10-bit Greyscale"; break;
> > > case V4L2_PIX_FMT_Y12: descr = "12-bit Greyscale"; break;
> > > + case V4L2_PIX_FMT_Y012: descr = "12-bit Greyscale"; break;
> > > case V4L2_PIX_FMT_Y14: descr = "14-bit Greyscale"; break;
> > > case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break;
> > > case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE";
> > > break;
> > > diff --git a/include/uapi/linux/videodev2.h
> > > b/include/uapi/linux/videodev2.h index 5448aa3b7858..3d8f89bff33c
> > > 100644
> > > --- a/include/uapi/linux/videodev2.h
> > > +++ b/include/uapi/linux/videodev2.h
> > > @@ -583,6 +583,7 @@ struct v4l2_pix_format {
> > > #define V4L2_PIX_FMT_Y6 v4l2_fourcc('Y', '0', '6', ' ') /* 6
> > > Greyscale */
> > > #define V4L2_PIX_FMT_Y10 v4l2_fourcc('Y', '1', '0', ' ') /* 10
> > > Greyscale
> > */
> > > #define V4L2_PIX_FMT_Y12 v4l2_fourcc('Y', '1', '2', ' ') /* 12
> > > Greyscale
> > */
> > > +#define V4L2_PIX_FMT_Y012 v4l2_fourcc('Y', '0', '1', '2') /* 12
> > > Greyscale
> > */
> > > #define V4L2_PIX_FMT_Y14 v4l2_fourcc('Y', '1', '4', ' ') /* 14
> > > Greyscale
> > */
> > > #define V4L2_PIX_FMT_Y16 v4l2_fourcc('Y', '1', '6', ' ') /* 16
> > > Greyscale
> > */
> > > #define V4L2_PIX_FMT_Y16_BE v4l2_fourcc_be('Y', '1', '6', ' ') /* 16
> > > Greyscale BE */
>
>From: Nicolas Dufresne <[email protected]>
>Sent: 2023年2月14日 0:39
>To: Ming Qian <[email protected]>; [email protected]; Mirela Rabulea
>(OSS) <[email protected]>; [email protected]
>Cc: [email protected]; [email protected]; [email protected];
>[email protected]; X.H. Bao <[email protected]>; dl-linux-imx <linux-
>[email protected]>; [email protected]; [email protected];
>[email protected]; [email protected]
>Subject: Re: [EXT] Re: [PATCH v2 02/10] media: Add Y012 video format
>
>Caution: EXT Email
>
>Le lundi 13 février 2023 à 09:22 +0000, Ming Qian a écrit :
>> > From: Nicolas Dufresne <[email protected]>
>> > Sent: 2023年2月10日 23:18
>> > To: Ming Qian <[email protected]>; [email protected]; Mirela
>> > Rabulea
>> > (OSS) <[email protected]>; [email protected]
>> > Cc: [email protected]; [email protected];
>> > [email protected]; [email protected]; X.H. Bao
>> > <[email protected]>; dl-linux-imx <linux- [email protected]>;
>> > [email protected]; [email protected];
>> > [email protected]; [email protected]
>> > Subject: [EXT] Re: [PATCH v2 02/10] media: Add Y012 video format
>> >
>> > Caution: EXT Email
>> >
>> > Le mercredi 01 février 2023 à 14:02 +0800, Ming Qian a écrit :
>> > > Y012 is a luma-only formats with 12-bits per pixel, 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 <[email protected]>
>> > > ---
>> > > .../userspace-api/media/v4l/pixfmt-yuv-luma.rst | 11 +++++++++++
>> > > drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
>> > > include/uapi/linux/videodev2.h | 1 +
>> > > 3 files changed, 13 insertions(+)
>> > >
>> > > diff --git
>> > > a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
>> > > b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
>> > > index 6a387f9df3ba..3ffa29000238 100644
>> > > --- a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
>> > > +++ b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst
>> > > @@ -103,6 +103,17 @@ are often referred to as greyscale formats.
>> > > - ...
>> > > - ...
>> > >
>> > > + * .. _V4L2-PIX-FMT-Y012:
>> >
>> > Why the 0, can't this be name Y12 (just like Y14) ?
>> >
>>
>> Hi Nicolas,
>> As the V4L2_PIX_FMT_Y12 is defined, but it's data is in the 12 low
>> bits, zeros in the high bits.
>> Here I want to place the 12 bits data in the high bits, with zeros
>> in the
>> 4 low bits.
>> So I add 0 before 12, I want to say that the low bits are padding data 0.
>>
>> Or do you have a better suggestion?
>
>I see, I had missed this aspect. I think in this context, it would be fair naming.
>Maybe drop a note in the doc saying just that:
>
>"In contrast to V4L2_PIX_FMT_Y12 format, which have its padding located in
>the most significant bits of the 16 bit word".
>
>Or something similar.,
>Nicolas
Hi Nicolas,
Thanks very much, I'll include the description in v3 patch
>
>>
>> Ming
>>
>> > > +
>> > > + - ``V4L2_PIX_FMT_Y012``
>> > > + - 'Y012'
>> > > +
>> > > + - Y'\ :sub:`0`\ [3:0] `0000`
>> > > + - Y'\ :sub:`0`\ [11:4]
>> > > + - ...
>> > > + - ...
>> > > + - ...
>> > > +
>> > > * .. _V4L2-PIX-FMT-Y14:
>> > >
>> > > - ``V4L2_PIX_FMT_Y14``
>> > > diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c
>> > > b/drivers/media/v4l2-core/v4l2-ioctl.c
>> > > index 067dbdd0a9ef..0ee730aa6cc7 100644
>> > > --- a/drivers/media/v4l2-core/v4l2-ioctl.c
>> > > +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
>> > > @@ -1303,6 +1303,7 @@ static void v4l_fill_fmtdesc(struct
>> > > v4l2_fmtdesc
>> > *fmt)
>> > > case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
>> > > case V4L2_PIX_FMT_Y10: descr = "10-bit Greyscale"; break;
>> > > case V4L2_PIX_FMT_Y12: descr = "12-bit Greyscale"; break;
>> > > + case V4L2_PIX_FMT_Y012: descr = "12-bit Greyscale"; break;
>> > > case V4L2_PIX_FMT_Y14: descr = "14-bit Greyscale"; break;
>> > > case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break;
>> > > case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE";
>> > > break;
>> > > diff --git a/include/uapi/linux/videodev2.h
>> > > b/include/uapi/linux/videodev2.h index 5448aa3b7858..3d8f89bff33c
>> > > 100644
>> > > --- a/include/uapi/linux/videodev2.h
>> > > +++ b/include/uapi/linux/videodev2.h
>> > > @@ -583,6 +583,7 @@ struct v4l2_pix_format {
>> > > #define V4L2_PIX_FMT_Y6 v4l2_fourcc('Y', '0', '6', ' ') /* 6
>> > > Greyscale */
>> > > #define V4L2_PIX_FMT_Y10 v4l2_fourcc('Y', '1', '0', ' ') /* 10
>> > > Greyscale
>> > */
>> > > #define V4L2_PIX_FMT_Y12 v4l2_fourcc('Y', '1', '2', ' ') /* 12
>> > > Greyscale
>> > */
>> > > +#define V4L2_PIX_FMT_Y012 v4l2_fourcc('Y', '0', '1', '2') /* 12
>> > > Greyscale
>> > */
>> > > #define V4L2_PIX_FMT_Y14 v4l2_fourcc('Y', '1', '4', ' ') /* 14
>> > > Greyscale
>> > */
>> > > #define V4L2_PIX_FMT_Y16 v4l2_fourcc('Y', '1', '6', ' ') /* 16
>> > > Greyscale
>> > */
>> > > #define V4L2_PIX_FMT_Y16_BE v4l2_fourcc_be('Y', '1', '6', ' ')
>> > > /* 16 Greyscale BE */
>>