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[129.46.96.20]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2b170673bc0sm19157897eec.5.2026.01.13.12.33.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 Jan 2026 12:33:36 -0800 (PST) From: Deepa Guthyappa Madivalara Subject: [RFC PATCH 0/3] Implement Region of Interest(ROI) support. Date: Tue, 13 Jan 2026 12:33:31 -0800 Message-Id: <20260113-iris_enc_roi-v1-0-6c86eba38587@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIABusZmkC/x3MQQqAIBBA0avErBNyyNCuEiFhY81GY4QIpLsnL d/i/wqFhKnA3FUQurlwTg267yCcWzpI8d4MOOA0aI2KhYunFLxkVtY6G92GozERWnIJRX7+3bK +7wdss9gIXgAAAA== X-Change-ID: 20260112-iris_enc_roi-8898f9a2455f To: Mauro Carvalho Chehab , Vikash Garodia , Dikshita Agarwal , Abhinav Kumar , Bryan O'Donoghue Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Deepa Guthyappa Madivalara X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1768336416; l=2042; i=deepa.madivalara@oss.qualcomm.com; s=20250814; h=from:subject:message-id; bh=e9feMsTntwOvJE/f/yvVEy1Vi5yNGa1wmeIx2NZlt1Y=; b=qZseyZv2DRWXygM4GU/AMh081btlPHh3Knb3IxDtxqgxmcmXAh2nHRwNSuO8wX8qhbZuAn8Rh dw7cx4cim7dC9pFtAEjzRANDTLH+cdBEA8dgza19lxYrb28jCqVHKnV X-Developer-Key: i=deepa.madivalara@oss.qualcomm.com; a=ed25519; pk=MOEXgyokievn+bgpHdS6Ixh/KQYyS90z2mqIbQ822FQ= X-Proofpoint-ORIG-GUID: 42q753TyHjUD9P5dT18Bzv_pk_B9Yx32 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTEzMDE2OCBTYWx0ZWRfX1eKzBX1xcQq8 yE9SD6ZWoHAtU18wm4h3CyR3s8ay2F8kC/pDbuQ3hooanWdeADNIp1yX0k5uFXs/t9J/G8O/eHI oGOtktBEKCQu2QrK6Di5eFi6Gh2g8ZmOgyON9rRUiUMMy65yoR4ShSx8ltUOpSjmlAArwOyBlA0 cB+PXbkLngfqivAf/WplmGvVDDKt4P7jH7BQdaur4kdpZ3gkfCn+acMYfKGQPXbEL1yi63w8Hml wiPyAIVMQAzyWJ+MwhFhEa50LU2MG6EFOTVRTfAiY1/SVHNjqOZnFyAVGTEzTUItmlxvRN+NQ4p A12rm2jCY8tX4ZGWgBEPXUMeuXwmUemRDVgeSaS1L7lAWgI/OwaXOB4HxxSyxeVNNn5QvPwEydx wNRAiwiqDhCY6/LL/228L5m9acruAYPUDQNJW1Ug3KUxjfoEElDeJj7EA7+yPXS1hOhCxhj9mq6 70pQCtklyjC3+JZQgxA== X-Authority-Analysis: v=2.4 cv=TMlIilla c=1 sm=1 tr=0 ts=6966ac22 cx=c_pps a=PfFC4Oe2JQzmKTvty2cRDw==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=pCB003YKW07DD_LcUbsA:9 a=QEXdDO2ut3YA:10 a=6Ab_bkdmUrQuMsNx7PHu:22 X-Proofpoint-GUID: 42q753TyHjUD9P5dT18Bzv_pk_B9Yx32 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2026-01-13_04,2026-01-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 malwarescore=0 bulkscore=0 adultscore=0 phishscore=0 clxscore=1015 lowpriorityscore=0 spamscore=0 suspectscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2601130168 Hi all, This patch set implements region of interest(ROI) support for video encoder to be configured as a rectangular region, and corresponding delta QP parameter. A new compound control V4L2_CID_MPEG_VIDEO_ENC_ROI which maps to struct v4l2_ctrl_enc_roi_params is implemented to achieve this. I'm sharing this series as an RFC because adding support in the firmware and framework for testing, gstreamer testing is still in progress. I would appreciate early feedback on the design, implementation, and fixes before moving to a formal submission. v4l2-ctl -d /dev/video1 --list-ctrls .. hevc_b_frame_maximum_qp_value 0x00990b8c (int): min=1 max=51 step=1 default=51 value=51 flags=has-min-max video_encoder_roi_params 0x00990b92 (unknown): type=284 value=unsupported payload type flags=has-payload Thanks, Deepa Signed-off-by: Deepa Guthyappa Madivalara --- Deepa Guthyappa Madivalara (3): media: uapi: Introduce new control for video encoder ROI media: v4l2-core: Add support for video encoder ROI control media: iris: Add ROI support framework for video encoder .../userspace-api/media/v4l/ext-ctrls-codec.rst | 7 +++ drivers/media/platform/qcom/iris/iris_ctrls.c | 54 +++++++++++++++++++++- drivers/media/platform/qcom/iris/iris_ctrls.h | 1 + .../platform/qcom/iris/iris_platform_common.h | 4 ++ .../media/platform/qcom/iris/iris_platform_gen2.c | 8 ++++ drivers/media/v4l2-core/v4l2-ctrls-core.c | 14 +++++- drivers/media/v4l2-core/v4l2-ctrls-defs.c | 5 ++ include/media/v4l2-ctrls.h | 1 + include/uapi/linux/v4l2-controls.h | 1 + include/uapi/linux/videodev2.h | 17 +++++++ 10 files changed, 110 insertions(+), 2 deletions(-) --- base-commit: f417b7ffcbef7d76b0d8860518f50dae0e7e5eda change-id: 20260112-iris_enc_roi-8898f9a2455f Best regards, -- Deepa Guthyappa Madivalara