From: Ming Qian <ming.qian@nxp.com>
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 [thread overview]
Message-ID: <647f84c1e7c2a48d6492d38fa4f06586235500b8.1631002447.git.ming.qian@nxp.com> (raw)
In-Reply-To: <cover.1631002447.git.ming.qian@nxp.com>
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 <ming.qian@nxp.com>
Signed-off-by: Shijie Qin <shijie.qin@nxp.com>
Signed-off-by: Zhou Peng <eagle.zhou@nxp.com>
---
.../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
next prev parent reply other threads:[~2021-09-07 9:50 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-07 9:49 [PATCH v8 00/15] amphion video decoder/encoder driver Ming Qian
2021-09-07 9:49 ` [PATCH v8 01/15] dt-bindings: media: amphion: add amphion video codec bindings Ming Qian
2021-09-07 9:49 ` [PATCH v8 02/15] media:Add nt8 and nt10 video format Ming Qian
2021-09-07 9:49 ` [PATCH v8 03/15] media:Add v4l2 buf flag codec data Ming Qian
2021-09-08 13:14 ` Nicolas Dufresne
2021-09-09 2:20 ` [EXT] " Ming Qian
2021-09-09 19:40 ` Nicolas Dufresne
2021-09-10 1:33 ` Ming Qian
2021-09-07 9:49 ` Ming Qian [this message]
2021-09-08 13:32 ` [PATCH v8 04/15] media:Add v4l2 event codec_error and skip Nicolas Dufresne
2021-09-09 3:13 ` [EXT] " Ming Qian
2021-09-09 19:54 ` Nicolas Dufresne
2021-09-10 1:50 ` Ming Qian
2022-01-13 7:18 ` Ming Qian
2022-01-21 22:25 ` Nicolas Dufresne
2022-01-25 1:54 ` Ming Qian
2022-01-25 20:23 ` Nicolas Dufresne
2021-09-07 9:49 ` [PATCH v8 05/15] media: amphion: add amphion vpu device driver Ming Qian
2021-09-07 9:49 ` [PATCH v8 06/15] media: amphion: add vpu core driver Ming Qian
2021-09-07 9:49 ` [PATCH v8 07/15] media: amphion: implement vpu core communication based on mailbox Ming Qian
2021-09-07 9:49 ` [PATCH v8 08/15] media: amphion: add vpu v4l2 m2m support Ming Qian
2021-09-07 9:49 ` [PATCH v8 09/15] media: amphion: add v4l2 m2m vpu encoder stateful driver Ming Qian
2021-09-07 9:49 ` [PATCH v8 10/15] media: amphion: add v4l2 m2m vpu decoder " Ming Qian
2021-09-07 9:49 ` [PATCH v8 11/15] media: amphion: implement windsor encoder rpc interface Ming Qian
2021-09-07 9:49 ` [PATCH v8 12/15] media: amphion: implement malone decoder " Ming Qian
2021-09-07 9:49 ` [PATCH v8 13/15] ARM64: dts: freescale: imx8q: add imx vpu codec entries Ming Qian
2021-09-07 9:49 ` [PATCH v8 14/15] firmware: imx: scu-pd: imx8q: add vpu mu resources Ming Qian
2021-09-07 9:49 ` [PATCH v8 15/15] MAINTAINERS: add AMPHION VPU CODEC V4L2 driver entry Ming Qian
2021-09-07 14:35 ` [PATCH v8 00/15] amphion video decoder/encoder driver Nicolas Dufresne
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