media: allegro: add HEVC NAL unit generator

When encoding a video as HEVC, the allegro driver needs to generate the
Non-VCL NAL units for HEVC. Do the same as for H.264 and add a module
that takes C structs for the VPS/SPS/PPS and encodes the fields as RBPS
as specified by "ITU-T Rec. H.265 (02/2018) high efficiency video
coding".

[hverkuil: add missing static for nal_hevc_write/read_start_code_prefix]
[hverkuil: fix typo: pps -> vps in nal_hevc_write_vps]

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Michael Tretter 2020-12-03 12:00:51 +01:00 • committed by Mauro Carvalho Chehab
commit 7f8e438b90
3 changed files with 1175 additions and 1 deletions