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[84.238.221.92]) by smtp.gmail.com with ESMTPSA id t19sm8239101eje.86.2020.11.30.01.09.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Nov 2020 01:09:27 -0800 (PST) From: Stanimir Varbanov To: 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 , Stanimir Varbanov Subject: [PATCH 1/4] media: v4l2-ctrls: Add random intra-refresh control Date: Mon, 30 Nov 2020 11:08:56 +0200 Message-Id: <20201130090859.25272-2-stanimir.varbanov@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201130090859.25272-1-stanimir.varbanov@linaro.org> References: <20201130090859.25272-1-stanimir.varbanov@linaro.org> Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org 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. + ``V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE (boolean)`` Frame level rate control enable. If this control is disabled then the quantization parameter for each frame type is constant and set diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c index ad47d00e28d6..5354547ed777 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -869,6 +869,7 @@ const char *v4l2_ctrl_get_name(u32 id) case V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE: return "Decoder Slice Interface"; case V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER: return "MPEG4 Loop Filter Enable"; case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB: return "Number of Intra Refresh MBs"; + case V4L2_CID_MPEG_VIDEO_RANDOM_INTRA_REFRESH_MB: return "Number of Random IR MBs"; case V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE: return "Frame Level Rate Control Enable"; case V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE: return "H264 MB Level Rate Control"; case V4L2_CID_MPEG_VIDEO_HEADER_MODE: return "Sequence Header Mode"; diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h index 7035f4fb182c..cc7676ffff67 100644 --- a/include/uapi/linux/v4l2-controls.h +++ b/include/uapi/linux/v4l2-controls.h @@ -421,6 +421,7 @@ enum v4l2_mpeg_video_multi_slice_mode { #define V4L2_CID_MPEG_VIDEO_MV_H_SEARCH_RANGE (V4L2_CID_MPEG_BASE+227) #define V4L2_CID_MPEG_VIDEO_MV_V_SEARCH_RANGE (V4L2_CID_MPEG_BASE+228) #define V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME (V4L2_CID_MPEG_BASE+229) +#define V4L2_CID_MPEG_VIDEO_RANDOM_INTRA_REFRESH_MB (V4L2_CID_MPEG_BASE+230) /* CIDs for the MPEG-2 Part 2 (H.262) codec */ #define V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL (V4L2_CID_MPEG_BASE+270)