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 03/15] media:Add v4l2 buf flag codec data.
Date: Tue, 7 Sep 2021 17:49:10 +0800 [thread overview]
Message-ID: <7ef1840137417c33f5ef7ca611c90fc274926851.1631002447.git.ming.qian@nxp.com> (raw)
In-Reply-To: <cover.1631002447.git.ming.qian@nxp.com>
In some decoing scenarios, application may queue a buffer
that only contains codec config data, and the driver needs to
know whether is it a frame or not.
So we add a buf flag to tell this case.
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>
---
Documentation/userspace-api/media/v4l/buffer.rst | 7 +++++++
include/uapi/linux/videodev2.h | 1 +
2 files changed, 8 insertions(+)
diff --git a/Documentation/userspace-api/media/v4l/buffer.rst b/Documentation/userspace-api/media/v4l/buffer.rst
index e991ba73d873..11013bcf8a41 100644
--- a/Documentation/userspace-api/media/v4l/buffer.rst
+++ b/Documentation/userspace-api/media/v4l/buffer.rst
@@ -607,6 +607,13 @@ Buffer Flags
the format. Any subsequent call to the
:ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl will not block anymore,
but return an ``EPIPE`` error code.
+ * .. _`V4L2-BUF-FLAG-CODECCONFIG`:
+
+ - ``V4L2_BUF_FLAG_CODECCONFIG``
+ - 0x00200000
+ - The buffer only contains codec config data, eg. sps and pps.
+ Applications can set this bit when ``type`` refers to an output
+ stream, this flag is usually used by v4l2 decoder.
* .. _`V4L2-BUF-FLAG-REQUEST-FD`:
- ``V4L2_BUF_FLAG_REQUEST_FD``
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 167c0e40ec06..5bb0682b4a23 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1119,6 +1119,7 @@ static inline __u64 v4l2_timeval_to_ns(const struct timeval *tv)
#define V4L2_BUF_FLAG_TSTAMP_SRC_SOE 0x00010000
/* mem2mem encoder/decoder */
#define V4L2_BUF_FLAG_LAST 0x00100000
+#define V4L2_BUF_FLAG_CODECCONFIG 0x00200000
/* request_fd is valid */
#define V4L2_BUF_FLAG_REQUEST_FD 0x00800000
--
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 ` Ming Qian [this message]
2021-09-08 13:14 ` [PATCH v8 03/15] media:Add v4l2 buf flag codec data 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 ` [PATCH v8 04/15] media:Add v4l2 event codec_error and skip Ming Qian
2021-09-08 13:32 ` 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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