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[84.238.221.103]) by smtp.gmail.com with ESMTPSA id m7sm12627104edp.81.2021.03.23.06.35.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Mar 2021 06:35:33 -0700 (PDT) From: Stanimir Varbanov To: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org Cc: hverkuil-cisco@xs4all.nl, Stanimir Varbanov Subject: [PATCH v3 1/2] v4l2-ctrl: Add decoder conceal color control Date: Tue, 23 Mar 2021 15:35:19 +0200 Message-Id: <20210323133520.943317-2-stanimir.varbanov@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323133520.943317-1-stanimir.varbanov@linaro.org> References: <20210323133520.943317-1-stanimir.varbanov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add decoder v4l2 control to set conceal color. Signed-off-by: Stanimir Varbanov Reviewed-by: Hans Verkuil --- .../media/v4l/ext-ctrls-codec.rst | 33 +++++++++++++++++++ drivers/media/v4l2-core/v4l2-ctrls.c | 9 +++++ include/uapi/linux/v4l2-controls.h | 1 + 3 files changed, 43 insertions(+) -- 2.25.1 diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst index 9963c1c9a4d5..e11a734c43bd 100644 --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst @@ -674,6 +674,39 @@ enum v4l2_mpeg_video_frame_skip_mode - is currently displayed (decoded). This value is reset to 0 whenever the decoder is started. +``V4L2_CID_MPEG_VIDEO_DEC_CONCEAL_COLOR (integer64)`` + This control sets the conceal color in YUV color space. It describes + the client preference of the error conceal color in case of an error + where the reference frame is missing. The decoder should fill the + reference buffer with the preferred color and use it for future + decoding. The control is using 16 bits per channel. + Applicable to decoders. + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + + * - + - 8bit format + - 10bit format + - 12bit format + * - Y luminance + - Bit 0:7 + - Bit 0:9 + - Bit 0:11 + * - Cb chrominance + - Bit 16:23 + - Bit 16:25 + - Bit 16:27 + * - Cr chrominance + - Bit 32:39 + - Bit 32:41 + - Bit 32:43 + * - Must be zero + - Bit 48:63 + - Bit 48:63 + - Bit 48:63 + ``V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE (boolean)`` If enabled the decoder expects to receive a single slice per buffer, otherwise the decoder expects a single frame in per buffer. diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c index ca50e21e2838..c35c538c4aa4 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -948,6 +948,7 @@ const char *v4l2_ctrl_get_name(u32 id) case V4L2_CID_MPEG_VIDEO_VBV_SIZE: return "VBV Buffer Size"; case V4L2_CID_MPEG_VIDEO_DEC_PTS: return "Video Decoder PTS"; case V4L2_CID_MPEG_VIDEO_DEC_FRAME: return "Video Decoder Frame Count"; + case V4L2_CID_MPEG_VIDEO_DEC_CONCEAL_COLOR: return "Video Decoder Conceal Color"; case V4L2_CID_MPEG_VIDEO_VBV_DELAY: return "Initial Delay for VBV Control"; case V4L2_CID_MPEG_VIDEO_MV_H_SEARCH_RANGE: return "Horizontal MV Search Range"; case V4L2_CID_MPEG_VIDEO_MV_V_SEARCH_RANGE: return "Vertical MV Search Range"; @@ -1436,6 +1437,14 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, *max = 0x7fffffffffffffffLL; *step = 1; break; + case V4L2_CID_MPEG_VIDEO_DEC_CONCEAL_COLOR: + *type = V4L2_CTRL_TYPE_INTEGER64; + *min = 0; + /* default for 8 bit black, luma is 16, chroma is 128 */ + *def = 0x8000800010LL; + *max = 0xffffffffffffLL; + *step = 1; + break; case V4L2_CID_PIXEL_RATE: *type = V4L2_CTRL_TYPE_INTEGER64; *flags |= V4L2_CTRL_FLAG_READ_ONLY; diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h index 6f8c08507bf4..926877c0c653 100644 --- a/include/uapi/linux/v4l2-controls.h +++ b/include/uapi/linux/v4l2-controls.h @@ -429,6 +429,7 @@ enum v4l2_mpeg_video_multi_slice_mode { #define V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME (V4L2_CID_CODEC_BASE+229) #define V4L2_CID_MPEG_VIDEO_BASELAYER_PRIORITY_ID (V4L2_CID_CODEC_BASE+230) #define V4L2_CID_MPEG_VIDEO_AU_DELIMITER (V4L2_CID_CODEC_BASE+231) +#define V4L2_CID_MPEG_VIDEO_DEC_CONCEAL_COLOR (V4L2_CID_CODEC_BASE+232) /* CIDs for the MPEG-2 Part 2 (H.262) codec */ #define V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL (V4L2_CID_CODEC_BASE+270)