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Tue, 7 Sep 2021 09:50:05 +0000 From: Ming Qian To: mchehab@kernel.org, shawnguo@kernel.org, robh+dt@kernel.org, s.hauer@pengutronix.de Cc: hverkuil-cisco@xs4all.nl, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, aisheng.dong@nxp.com, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v8 04/15] media:Add v4l2 event codec_error and skip Date: Tue, 7 Sep 2021 17:49:11 +0800 Message-Id: <647f84c1e7c2a48d6492d38fa4f06586235500b8.1631002447.git.ming.qian@nxp.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: References: Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SG2PR02CA0097.apcprd02.prod.outlook.com (2603:1096:4:92::13) To AM6PR04MB6341.eurprd04.prod.outlook.com (2603:10a6:20b:d8::14) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from lsv11149.swis.cn-sha01.nxp.com (119.31.174.70) by SG2PR02CA0097.apcprd02.prod.outlook.com (2603:1096:4:92::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4478.19 via Frontend Transport; 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The skip event can tell the client that there are a frame has been decoded, but it won't be outputed. Signed-off-by: Ming Qian Signed-off-by: Shijie Qin Signed-off-by: Zhou Peng --- .../userspace-api/media/v4l/vidioc-dqevent.rst | 12 ++++++++++++ include/uapi/linux/videodev2.h | 2 ++ 2 files changed, 14 insertions(+) diff --git a/Documentation/userspace-api/media/v4l/vidioc-dqevent.rst b/Documentation/userspace-api/media/v4l/vidioc-dqevent.rst index 6eb40073c906..87d40ad25604 100644 --- a/Documentation/userspace-api/media/v4l/vidioc-dqevent.rst +++ b/Documentation/userspace-api/media/v4l/vidioc-dqevent.rst @@ -182,6 +182,18 @@ call. the regions changes. This event has a struct :c:type:`v4l2_event_motion_det` associated with it. + * - ``V4L2_EVENT_CODEC_ERROR`` + - 7 + - This event is triggered when some error occurs inside the codec engine, + usually it can be replaced by a POLLERR event, but in some cases, the POLLERR + may cause the application to exit, but this event can allow the application to + handle the codec error without exiting. + * - ``V4L2_EVENT_SKIP`` + - 8 + - This event is triggered when one frame is decoded, but it won't be outputed + to the display. So the application can't get this frame, and the input frame count + is dismatch with the output frame count. And this evevt is telling the client to + handle this case. * - ``V4L2_EVENT_PRIVATE_START`` - 0x08000000 - Base event number for driver-private events. diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 5bb0682b4a23..c56640d42dc5 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -2369,6 +2369,8 @@ struct v4l2_streamparm { #define V4L2_EVENT_FRAME_SYNC 4 #define V4L2_EVENT_SOURCE_CHANGE 5 #define V4L2_EVENT_MOTION_DET 6 +#define V4L2_EVENT_CODEC_ERROR 7 +#define V4L2_EVENT_SKIP 8 #define V4L2_EVENT_PRIVATE_START 0x08000000 /* Payload for V4L2_EVENT_VSYNC */ -- 2.32.0 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,MSGID_FROM_MTA_HEADER,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 03FAEC433F5 for ; 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dkim=none (message not signed) header.d=none;kernel.org; dmarc=none action=none header.from=nxp.com; Received: from AM6PR04MB6341.eurprd04.prod.outlook.com (2603:10a6:20b:d8::14) by AS8PR04MB7767.eurprd04.prod.outlook.com (2603:10a6:20b:288::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4500.14; Tue, 7 Sep 2021 09:50:05 +0000 Received: from AM6PR04MB6341.eurprd04.prod.outlook.com ([fe80::998c:7f25:6d75:d5f4]) by AM6PR04MB6341.eurprd04.prod.outlook.com ([fe80::998c:7f25:6d75:d5f4%7]) with mapi id 15.20.4478.025; Tue, 7 Sep 2021 09:50:05 +0000 From: Ming Qian To: mchehab@kernel.org, shawnguo@kernel.org, robh+dt@kernel.org, s.hauer@pengutronix.de Cc: hverkuil-cisco@xs4all.nl, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, aisheng.dong@nxp.com, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v8 04/15] media:Add v4l2 event codec_error and skip Date: Tue, 7 Sep 2021 17:49:11 +0800 Message-Id: <647f84c1e7c2a48d6492d38fa4f06586235500b8.1631002447.git.ming.qian@nxp.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: References: X-ClientProxiedBy: SG2PR02CA0097.apcprd02.prod.outlook.com (2603:1096:4:92::13) To AM6PR04MB6341.eurprd04.prod.outlook.com (2603:10a6:20b:d8::14) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from lsv11149.swis.cn-sha01.nxp.com (119.31.174.70) by SG2PR02CA0097.apcprd02.prod.outlook.com (2603:1096:4:92::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4478.19 via Frontend Transport; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The codec_error event can tell client that there are some error occurs in the decoder engine. The skip event can tell the client that there are a frame has been decoded, but it won't be outputed. Signed-off-by: Ming Qian Signed-off-by: Shijie Qin Signed-off-by: Zhou Peng --- .../userspace-api/media/v4l/vidioc-dqevent.rst | 12 ++++++++++++ include/uapi/linux/videodev2.h | 2 ++ 2 files changed, 14 insertions(+) diff --git a/Documentation/userspace-api/media/v4l/vidioc-dqevent.rst b/Documentation/userspace-api/media/v4l/vidioc-dqevent.rst index 6eb40073c906..87d40ad25604 100644 --- a/Documentation/userspace-api/media/v4l/vidioc-dqevent.rst +++ b/Documentation/userspace-api/media/v4l/vidioc-dqevent.rst @@ -182,6 +182,18 @@ call. the regions changes. This event has a struct :c:type:`v4l2_event_motion_det` associated with it. + * - ``V4L2_EVENT_CODEC_ERROR`` + - 7 + - This event is triggered when some error occurs inside the codec engine, + usually it can be replaced by a POLLERR event, but in some cases, the POLLERR + may cause the application to exit, but this event can allow the application to + handle the codec error without exiting. + * - ``V4L2_EVENT_SKIP`` + - 8 + - This event is triggered when one frame is decoded, but it won't be outputed + to the display. So the application can't get this frame, and the input frame count + is dismatch with the output frame count. And this evevt is telling the client to + handle this case. * - ``V4L2_EVENT_PRIVATE_START`` - 0x08000000 - Base event number for driver-private events. diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 5bb0682b4a23..c56640d42dc5 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -2369,6 +2369,8 @@ struct v4l2_streamparm { #define V4L2_EVENT_FRAME_SYNC 4 #define V4L2_EVENT_SOURCE_CHANGE 5 #define V4L2_EVENT_MOTION_DET 6 +#define V4L2_EVENT_CODEC_ERROR 7 +#define V4L2_EVENT_SKIP 8 #define V4L2_EVENT_PRIVATE_START 0x08000000 /* Payload for V4L2_EVENT_VSYNC */ -- 2.32.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel