[PATCH v2 2/2] media: v4l: Add H265 pixel format
James_Lin
Ping-lei.Lin at mediatek.com
Mon Apr 11 01:01:20 PDT 2022
Add H265 pixel format.
So driver can recognize external camera devices
whom use h265 to describe High Efficiency Video Coding method.
Signed-off-by: James_Lin <Ping-lei.Lin at mediatek.com>
---
.../userspace-api/media/v4l/pixfmt-compressed.rst | 10 ++++++++++
drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
include/uapi/linux/videodev2.h | 1 +
3 files changed, 12 insertions(+)
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
index 967fc803ef94..75292aafe2eb 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
@@ -36,6 +36,16 @@ Compressed Formats
- MPEG multiplexed stream. The actual format is determined by
extended control ``V4L2_CID_MPEG_STREAM_TYPE``, see
:ref:`mpeg-control-id`.
+ * .. _V4L2-PIX-FMT-H265:
+
+ - ``V4L2_PIX_FMT_H265``
+ - 'H265'
+ - H.265 Access Unit.
+ The decoder expects one Access Unit per buffer.
+ The encoder generates one Access Unit per buffer.
+ If :ref:`VIDIOC_ENUM_FMT` reports ``V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM``
+ then the decoder has no requirements since it can parse all the
+ information from the raw bytestream.
* .. _V4L2-PIX-FMT-H264:
- ``V4L2_PIX_FMT_H264``
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 96e307fe3aab..aeaeb29307a4 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1402,6 +1402,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_PIX_FMT_JPEG: descr = "JFIF JPEG"; break;
case V4L2_PIX_FMT_DV: descr = "1394"; break;
case V4L2_PIX_FMT_MPEG: descr = "MPEG-1/2/4"; break;
+ case V4L2_PIX_FMT_H265: descr = "H.265"; break;
case V4L2_PIX_FMT_H264: descr = "H.264"; break;
case V4L2_PIX_FMT_H264_NO_SC: descr = "H.264 (No Start Codes)"; break;
case V4L2_PIX_FMT_H264_MVC: descr = "H.264 MVC"; break;
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 3768a0a80830..636e4236bfb8 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -691,6 +691,7 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_JPEG v4l2_fourcc('J', 'P', 'E', 'G') /* JFIF JPEG */
#define V4L2_PIX_FMT_DV v4l2_fourcc('d', 'v', 's', 'd') /* 1394 */
#define V4L2_PIX_FMT_MPEG v4l2_fourcc('M', 'P', 'E', 'G') /* MPEG-1/2/4 Multiplexed */
+#define V4L2_PIX_FMT_H265 v4l2_fourcc('H', '2', '6', '5') /* H265 with start codes */
#define V4L2_PIX_FMT_H264 v4l2_fourcc('H', '2', '6', '4') /* H264 with start codes */
#define V4L2_PIX_FMT_H264_NO_SC v4l2_fourcc('A', 'V', 'C', '1') /* H264 without start codes */
#define V4L2_PIX_FMT_H264_MVC v4l2_fourcc('M', '2', '6', '4') /* H264 MVC */
--
2.18.0
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