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Thu, 18 Jan 2024 11:00:01 +0000 (GMT) Received: from nasanex01b.na.qualcomm.com (nasanex01b.na.qualcomm.com [10.46.141.250]) by NASANPPMTA05.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 40IB00nK013139 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 18 Jan 2024 11:00:00 GMT Received: from hu-sachinku-hyd.qualcomm.com (10.80.80.8) by nasanex01b.na.qualcomm.com (10.46.141.250) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Thu, 18 Jan 2024 02:59:56 -0800 From: Sachin Kumar Garg To: , Mauro Carvalho Chehab , Stanimir Varbanov , Vikash Garodia , Andy Gross , Bjorn Andersson , Konrad Dybcio CC: Bryan O'Donoghue , , , Subject: [PATCH 1/2] media: v4l2-ctrls: add encoder maximum bitrate control Date: Thu, 18 Jan 2024 16:29:33 +0530 Message-ID: <20240118105934.137919-2-quic_sachinku@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240118105934.137919-1-quic_sachinku@quicinc.com> References: <20240118105934.137919-1-quic_sachinku@quicinc.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01b.na.qualcomm.com (10.46.141.250) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: aH8yp33KszO1w99GGEPufsd88lJu73yw X-Proofpoint-GUID: aH8yp33KszO1w99GGEPufsd88lJu73yw X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-18_06,2024-01-17_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 mlxlogscore=770 priorityscore=1501 lowpriorityscore=0 mlxscore=0 impostorscore=0 adultscore=0 bulkscore=0 malwarescore=0 spamscore=0 phishscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2401180079 Introduce V4L2_MPEG_VIDEO_BITRATE_MODE_MBR rate control to limit the frame level maximum bit rate. Encoder will choose appropriate quantization parameter and do the smart bit allocation to set the frame maximum bitrate level as per the Bitrate value configured. Signed-off-by: Sachin Kumar Garg --- Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst | 2 ++ drivers/media/v4l2-core/v4l2-ctrls-defs.c | 1 + include/uapi/linux/v4l2-controls.h | 1 + 3 files changed, 4 insertions(+) diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst index 2a165ae063fb..05ef4a70e3f5 100644 --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst @@ -576,6 +576,8 @@ enum v4l2_mpeg_video_bitrate_mode - - Constant bitrate * - ``V4L2_MPEG_VIDEO_BITRATE_MODE_CQ`` - Constant quality + * - ``V4L2_MPEG_VIDEO_BITRATE_MODE_MBR`` + - Maximum bitrate diff --git a/drivers/media/v4l2-core/v4l2-ctrls-defs.c b/drivers/media/v4l2-core/v4l2-ctrls-defs.c index 8696eb1cdd61..e0597b61ffb9 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls-defs.c +++ b/drivers/media/v4l2-core/v4l2-ctrls-defs.c @@ -154,6 +154,7 @@ const char * const *v4l2_ctrl_get_menu(u32 id) "Variable Bitrate", "Constant Bitrate", "Constant Quality", + "Maximum Bitrate", NULL }; static const char * const mpeg_stream_type[] = { diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h index 99c3f5e99da7..7c74d6c417d1 100644 --- a/include/uapi/linux/v4l2-controls.h +++ b/include/uapi/linux/v4l2-controls.h @@ -393,6 +393,7 @@ enum v4l2_mpeg_video_bitrate_mode { V4L2_MPEG_VIDEO_BITRATE_MODE_VBR = 0, V4L2_MPEG_VIDEO_BITRATE_MODE_CBR = 1, V4L2_MPEG_VIDEO_BITRATE_MODE_CQ = 2, + V4L2_MPEG_VIDEO_BITRATE_MODE_MBR = 3, }; #define V4L2_CID_MPEG_VIDEO_BITRATE (V4L2_CID_CODEC_BASE+207) #define V4L2_CID_MPEG_VIDEO_BITRATE_PEAK (V4L2_CID_CODEC_BASE+208)