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[84.238.221.93]) by smtp.googlemail.com with ESMTPSA id b21sm1135840ejz.102.2020.12.02.04.15.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 02 Dec 2020 04:15:02 -0800 (PST) Subject: Re: [PATCH 1/4] media: v4l2-ctrls: Add random intra-refresh control To: Stanimir Varbanov , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org Cc: Ezequiel Garcia , Nicolas Dufresne , Maheshwar Ajja , Hans Verkuil References: <20201130090859.25272-1-stanimir.varbanov@linaro.org> <20201130090859.25272-2-stanimir.varbanov@linaro.org> From: Stanimir Varbanov Message-ID: <159cc27a-20a8-383c-025f-e3e32742c3f5@linaro.org> Date: Wed, 2 Dec 2020 14:15:01 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20201130090859.25272-2-stanimir.varbanov@linaro.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On 11/30/20 11:08 AM, Stanimir Varbanov wrote: > Add a control to configure number of macroblocks for random > intra-refresh mode. > > Signed-off-by: Stanimir Varbanov > --- > Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst | 6 ++++++ > drivers/media/v4l2-core/v4l2-ctrls.c | 1 + > include/uapi/linux/v4l2-controls.h | 1 + > 3 files changed, 8 insertions(+) > > diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst > index ce728c757eaf..59c5d3da4d95 100644 > --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst > +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst > @@ -1104,6 +1104,12 @@ enum v4l2_mpeg_video_h264_entropy_mode - > macroblocks is refreshed until the cycle completes and starts from > the top of the frame. Applicable to H264, H263 and MPEG4 encoder. > > +``V4L2_CID_MPEG_VIDEO_RANDOM_INTRA_REFRESH_MB (integer)`` > + Random intra macroblock refresh. This is the number of random > + macroblocks refreshed on every frame. Here the positions of > + macroblocks to be refreshed on every frame is random. Applicable > + to H264 and HEVC encoder. Please ignore this control. I'm going to change the semantics in next version of this series. -- regards, Stan