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| author |   Paul Kocialkowski <paul.kocialkowski@bootlin.com> | 2019-10-22 12:26:52 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-10-24 18:09:18 -0300 |
| commit | 256fa3920874b0f1f4cb79ad6766493a22187153 (patch) | |
| tree | 36a8bd6a9644a68eabdfde5cc1cab88174893ff7 /Documentation/media/uapi/v4l/biblio.rst | |
| parent | media: cedrus: Remove unnecessary parenthesis around DIV_ROUND_UP (diff) | |
| download | wireguard-linux-256fa3920874b0f1f4cb79ad6766493a22187153.tar.xz wireguard-linux-256fa3920874b0f1f4cb79ad6766493a22187153.zip | |
media: v4l: Add definitions for HEVC stateless decoding
This introduces the required definitions for HEVC decoding support with
stateless VPUs. The controls associated to the HEVC slice format provide
the required meta-data for decoding slices extracted from the bitstream.
They are not exported to the public V4L2 API since reworking this API
will likely be needed for covering various use-cases and new hardware.
Multi-slice decoding is exposed as a valid decoding mode to match current
H.264 support but it is not yet implemented.
The interface comes with the following limitations:
* No custom quantization matrices (scaling lists);
* Support for a single temporal layer only;
* No slice entry point offsets support;
* No conformance window support;
* No VUI parameters support;
* No support for SPS extensions: range, multilayer, 3d, scc, 4 bits;
* No support for PPS extensions: range, multilayer, 3d, scc, 4 bits.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
[hverkuil-cisco@xs4all.nl: use 1ULL in flags defines in hevc-ctrls.h]
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'Documentation/media/uapi/v4l/biblio.rst')
| -rw-r--r-- | Documentation/media/uapi/v4l/biblio.rst | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/media/uapi/v4l/biblio.rst b/Documentation/media/uapi/v4l/biblio.rst index ad2ff258afa8..8095f57d3d75 100644 --- a/Documentation/media/uapi/v4l/biblio.rst +++ b/Documentation/media/uapi/v4l/biblio.rst @@ -131,6 +131,15 @@ ITU-T Rec. H.264 Specification (04/2017 Edition) :author: International Telecommunication Union (http://www.itu.ch) +.. _hevc: + +ITU H.265/HEVC +============== + +:title: ITU-T Rec. H.265 | ISO/IEC 23008-2 "High Efficiency Video Coding" + +:author: International Telecommunication Union (http://www.itu.ch), International Organisation for Standardisation (http://www.iso.ch) + .. _jfif: JFIF |