f07e572f64
bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G bcm2710: boot tested on RPi 3B v1.2 bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
51 lines
2.1 KiB
Diff
51 lines
2.1 KiB
Diff
From 662256810630f6ac6d06ee0cdc5f4660b25f7e98 Mon Sep 17 00:00:00 2001
|
|
From: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
|
|
Date: Tue, 22 Oct 2019 12:26:53 -0300
|
|
Subject: [PATCH] media: pixfmt: Document the HEVC slice pixel format
|
|
|
|
Commit de06f289283298e2938445019999cec46435375c upstream.
|
|
|
|
Document the current state of the HEVC slice pixel format.
|
|
The format will need to evolve in the future, which is why it is
|
|
not part of the public API.
|
|
|
|
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
|
|
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
|
|
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
|
|
---
|
|
.../media/uapi/v4l/pixfmt-compressed.rst | 23 +++++++++++++++++++
|
|
1 file changed, 23 insertions(+)
|
|
|
|
--- a/Documentation/media/uapi/v4l/pixfmt-compressed.rst
|
|
+++ b/Documentation/media/uapi/v4l/pixfmt-compressed.rst
|
|
@@ -188,6 +188,29 @@ Compressed Formats
|
|
If :ref:`VIDIOC_ENUM_FMT` reports ``V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM``
|
|
then the decoder has no requirements since it can parse all the
|
|
information from the raw bytestream.
|
|
+ * .. _V4L2-PIX-FMT-HEVC-SLICE:
|
|
+
|
|
+ - ``V4L2_PIX_FMT_HEVC_SLICE``
|
|
+ - 'S265'
|
|
+ - HEVC parsed slice data, as extracted from the HEVC bitstream.
|
|
+ This format is adapted for stateless video decoders that implement a
|
|
+ HEVC pipeline (using the :ref:`mem2mem` and :ref:`media-request-api`).
|
|
+ This pixelformat has two modifiers that must be set at least once
|
|
+ through the ``V4L2_CID_MPEG_VIDEO_HEVC_DECODE_MODE``
|
|
+ and ``V4L2_CID_MPEG_VIDEO_HEVC_START_CODE`` controls.
|
|
+ Metadata associated with the frame to decode is required to be passed
|
|
+ through the following controls :
|
|
+ * ``V4L2_CID_MPEG_VIDEO_HEVC_SPS``
|
|
+ * ``V4L2_CID_MPEG_VIDEO_HEVC_PPS``
|
|
+ * ``V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS``
|
|
+ See the :ref:`associated Codec Control IDs <v4l2-mpeg-hevc>`.
|
|
+ Buffers associated with this pixel format must contain the appropriate
|
|
+ number of macroblocks to decode a full corresponding frame.
|
|
+
|
|
+ .. note::
|
|
+
|
|
+ This format is not yet part of the public kernel API and it
|
|
+ is expected to change.
|
|
* .. _V4L2-PIX-FMT-FWHT:
|
|
|
|
- ``V4L2_PIX_FMT_FWHT``
|