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authorKeiichi Watanabe <keiichiw@chromium.org>2018-06-18 10:58:52 +0300
committerMauro Carvalho Chehab <mchehab+samsung@kernel.org>2018-07-04 16:28:38 +0300
commit5520b9467a39d5ec9ce9cd8a9ed01f826b817524 (patch)
tree839d333fe0f62b4803402392be1f5537a4a71f6c /Documentation/media
parent779680e2e793db349c37668099f26d9080801f53 (diff)
downloadlinux-5520b9467a39d5ec9ce9cd8a9ed01f826b817524.tar.xz
media: v4l2-ctrl: Change control for VP8 profile to menu control
Add a menu control V4L2_CID_MPEG_VIDEO_VP8_PROFILE for VP8 profile and make V4L2_CID_MPEG_VIDEO_VPX_PROFILE an alias of it. This new control is used to select the desired profile for VP8 encoder and query for supported profiles by VP8 encoder/decoder. Though we have originally a control V4L2_CID_MPEG_VIDEO_VPX_PROFILE and its name contains 'VPX', it works only for VP8 because supported profiles usually differ between VP8 and VP9. In addition, this control cannot be used for querying since it is not a menu control but an integer control, which cannot return an arbitrary set of supported profiles. The new control V4L2_CID_MPEG_VIDEO_VP8_PROFILE is a menu control as with controls for other codec profiles. (e.g. H264) In addition, this patch also fixes the use of V4L2_CID_MPEG_VIDEO_VPX_PROFILE in drivers of Qualcomm's venus and Samsung's s5p-mfc. Signed-off-by: Keiichi Watanabe <keiichiw@chromium.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'Documentation/media')
-rw-r--r--Documentation/media/uapi/v4l/extended-controls.rst25
1 files changed, 22 insertions, 3 deletions
diff --git a/Documentation/media/uapi/v4l/extended-controls.rst b/Documentation/media/uapi/v4l/extended-controls.rst
index 03931f9b1285..01ef31a934b4 100644
--- a/Documentation/media/uapi/v4l/extended-controls.rst
+++ b/Documentation/media/uapi/v4l/extended-controls.rst
@@ -1955,9 +1955,28 @@ enum v4l2_vp8_golden_frame_sel -
``V4L2_CID_MPEG_VIDEO_VPX_P_FRAME_QP (integer)``
Quantization parameter for a P frame for VP8.
-``V4L2_CID_MPEG_VIDEO_VPX_PROFILE (integer)``
- Select the desired profile for VPx encoder. Acceptable values are 0,
- 1, 2 and 3 corresponding to encoder profiles 0, 1, 2 and 3.
+.. _v4l2-mpeg-video-vp8-profile:
+
+``V4L2_CID_MPEG_VIDEO_VP8_PROFILE``
+ (enum)
+
+enum v4l2_mpeg_video_vp8_profile -
+ This control allows selecting the profile for VP8 encoder.
+ This is also used to enumerate supported profiles by VP8 encoder or decoder.
+ Possible values are:
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+
+ * - ``V4L2_MPEG_VIDEO_VP8_PROFILE_0``
+ - Profile 0
+ * - ``V4L2_MPEG_VIDEO_VP8_PROFILE_1``
+ - Profile 1
+ * - ``V4L2_MPEG_VIDEO_VP8_PROFILE_2``
+ - Profile 2
+ * - ``V4L2_MPEG_VIDEO_VP8_PROFILE_3``
+ - Profile 3
High Efficiency Video Coding (HEVC/H.265) Control Reference