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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 v7 03/14] media:Add v4l2 buf flag codec data.
Date: Tue, 31 Aug 2021 10:59:04 +0800	[thread overview]
Message-ID: <be578f1a32a47d24c03b9640c6a924b2a6507708.1630377507.git.ming.qian@nxp.com> (raw)
In-Reply-To: <cover.1630377507.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


  parent reply	other threads:[~2021-08-31  3:00 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-31  2:59 [PATCH v7 00/14] imx8q video decoder/encoder driver Ming Qian
2021-08-31  2:59 ` [PATCH v7 01/14] dt-bindings: media: imx8q: add imx video codec bindings Ming Qian
2021-08-31  2:59 ` [PATCH v7 02/14] media:Add nt8 and nt10 video format Ming Qian
2021-08-31  2:59 ` Ming Qian [this message]
2021-08-31  2:59 ` [PATCH v7 04/14] media: imx: imx8q: add imx8q vpu device driver Ming Qian
2021-08-31  2:59 ` [PATCH v7 05/14] media: imx: imx8q: add vpu core driver Ming Qian
2021-08-31  2:59 ` [PATCH v7 06/14] media: imx: imx8q: implement vpu core communication based on mailbox Ming Qian
2021-08-31  2:59 ` [PATCH v7 07/14] media: imx: imx8q: add vpu v4l2 m2m support Ming Qian
2021-08-31  2:59 ` [PATCH v7 08/14] media: imx: imx8q: add v4l2 m2m vpu encoder stateful driver Ming Qian
2021-08-31  2:59 ` [PATCH v7 09/14] media: imx: imx8q: add v4l2 m2m vpu decoder " Ming Qian
2021-08-31  2:59 ` [PATCH v7 10/14] media: imx: imx8q: implement windsor encoder rpc interface Ming Qian
2021-08-31  2:59 ` [PATCH v7 11/14] media: imx: imx8q: implement malone decoder " Ming Qian
2021-08-31  2:59 ` [PATCH v7 12/14] ARM64: dts: freescale: imx8q: add imx vpu codec entries Ming Qian
2021-08-31  2:59 ` [PATCH v7 13/14] firmware: imx: scu-pd: imx8q: add vpu mu resources Ming Qian
2021-08-31  2:59 ` [PATCH v7 14/14] MAINTAINERS: add NXP IMX8Q VPU CODEC V4L2 driver entry Ming Qian
2021-09-02 16:39 ` [PATCH v7 00/14] imx8q video decoder/encoder driver Ezequiel Garcia
2021-09-03  1:32   ` [EXT] " Ming Qian

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