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Date: Thu, 14 Jun 2018 17:13:02 +0900
From: Keiichi Watanabe <keiichiw@...omium.org>
To: Stanimir Varbanov <stanimir.varbanov@...aro.org>
Cc: "list@....net:IOMMU DRIVERS <iommu@...ts.linux-foundation.org>, Joerg
Roedel <joro@...tes.org>," <linux-arm-kernel@...ts.infradead.org>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Tiffany Lin <tiffany.lin@...iatek.com>,
Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
Matthias Brugger <matthias.bgg@...il.com>,
Kyungmin Park <kyungmin.park@...sung.com>,
Kamil Debski <kamil@...as.org>,
Jeongtae Park <jtp.park@...sung.com>,
Andrzej Hajda <a.hajda@...sung.com>,
Hans Verkuil <hverkuil@...all.nl>,
Jonathan Corbet <corbet@....net>,
Sakari Ailus <sakari.ailus@...ux.intel.com>,
Smitha T Murthy <smitha.t@...sung.com>,
Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>,
Tomasz Figa <tfiga@...omium.org>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Linux Media Mailing List <linux-media@...r.kernel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
linux-mediatek@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
Sylwester Nawrocki <s.nawrocki@...sung.com>
Subject: Re: [PATCH v3 1/3] media: v4l2-ctrl: Change control for VP8 profile
to menu control
Thanks, Stanimir
On Thu, Jun 14, 2018 at 5:04 PM, Stanimir Varbanov
<stanimir.varbanov@...aro.org> wrote:
> Hi Keiichi,
>
> On 06/14/2018 10:46 AM, Keiichi Watanabe wrote:
>> 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 a 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 contorol 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@...omium.org>
>> ---
>> .../media/uapi/v4l/extended-controls.rst | 27 ++++++++++++++++---
>> drivers/media/platform/qcom/venus/core.h | 2 +-
>> .../media/platform/qcom/venus/hfi_helper.h | 12 ++++-----
>> .../media/platform/qcom/venus/vdec_ctrls.c | 10 ++++---
>> drivers/media/platform/qcom/venus/venc.c | 14 +++++-----
>> .../media/platform/qcom/venus/venc_ctrls.c | 12 +++++----
>> drivers/media/platform/s5p-mfc/s5p_mfc_enc.c | 15 +++++------
>> drivers/media/v4l2-core/v4l2-ctrls.c | 12 ++++++++-
>> include/uapi/linux/v4l2-controls.h | 11 +++++++-
>> 9 files changed, 79 insertions(+), 36 deletions(-)
>>
>> diff --git a/Documentation/media/uapi/v4l/extended-controls.rst b/Documentation/media/uapi/v4l/extended-controls.rst
>> index 03931f9b1285..de99eafb0872 100644
>> --- a/Documentation/media/uapi/v4l/extended-controls.rst
>> +++ b/Documentation/media/uapi/v4l/extended-controls.rst
>> @@ -1955,9 +1955,30 @@ 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 to select 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
>> diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
>> index 0360d295f4c8..f242e7f9f6a2 100644
>> --- a/drivers/media/platform/qcom/venus/core.h
>> +++ b/drivers/media/platform/qcom/venus/core.h
>> @@ -159,7 +159,7 @@ struct venc_controls {
>> struct {
>> u32 mpeg4;
>> u32 h264;
>> - u32 vpx;
>> + u32 vp8;
>> } profile;
>> struct {
>> u32 mpeg4;
>> diff --git a/drivers/media/platform/qcom/venus/hfi_helper.h b/drivers/media/platform/qcom/venus/hfi_helper.h
>> index 55d8eb21403a..07bf49dd2ec6 100644
>> --- a/drivers/media/platform/qcom/venus/hfi_helper.h
>> +++ b/drivers/media/platform/qcom/venus/hfi_helper.h
>> @@ -333,12 +333,12 @@
>> #define HFI_VC1_LEVEL_3 0x00000040
>> #define HFI_VC1_LEVEL_4 0x00000080
>>
>> -#define HFI_VPX_PROFILE_SIMPLE 0x00000001
>> -#define HFI_VPX_PROFILE_ADVANCED 0x00000002
>> -#define HFI_VPX_PROFILE_VERSION_0 0x00000004
>> -#define HFI_VPX_PROFILE_VERSION_1 0x00000008
>> -#define HFI_VPX_PROFILE_VERSION_2 0x00000010
>> -#define HFI_VPX_PROFILE_VERSION_3 0x00000020
>> +#define HFI_VP8_PROFILE_SIMPLE 0x00000001
>> +#define HFI_VP8_PROFILE_ADVANCED 0x00000002
>> +#define HFI_VP8_PROFILE_VERSION_0 0x00000004
>> +#define HFI_VP8_PROFILE_VERSION_1 0x00000008
>> +#define HFI_VP8_PROFILE_VERSION_2 0x00000010
>> +#define HFI_VP8_PROFILE_VERSION_3 0x00000020
>
> Please do not rename these driver internal defines, just leave VPX as it
> is now.
>
I got it. I'll fix it in the next revision of the patch.
Best regards,
Keiichi
>
> --
> regards,
> Stan
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