The use of this SEI is for backward compatibility in HLG HDR systems:
older devices that cannot interpret the "arib-std-b67" transfer will
get the compatible transfer (usually bt709 or bt2020) from the VUI,
while newer devices that can interpret HDR will read the SEI and use
its value instead.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
The code was skipping the entire reported SEI message size regardless of
the amount of bits read.
While in theory safe for NALU where the picture timing SEI message is alone
or at the end as we're using the checked bitstream reader, it isn't in any
other situation, where every SEI message in the NALU after the picture
timing one would potentially fail to parse.
Change the function name to one more in line with the rest of file, and
remove the bogus "Skipped SEI" debug message while at it.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>
It doesn't depend on hevcdec anymore.
Reviewed-by: Hendrik Leppkes <h.leppkes@gmail.com>
Reviewed-by: Aaron Levinson <alevinsn@aracnet.com>
Signed-off-by: James Almer <jamrial@gmail.com>
Based on the H264 SEI implementation.
Reviewed-by: Hendrik Leppkes <h.leppkes@gmail.com>
Reviewed-by: Aaron Levinson <alevinsn@aracnet.com>
Signed-off-by: James Almer <jamrial@gmail.com>
* commit 'c359d624d3efc3fd1d83210d78c4152bd329b765':
hevcdec: move decoder-independent declarations into a separate header
Merged-by: James Almer <jamrial@gmail.com>
This way they can be reused by other code without including the whole
decoder-specific hevcdec.h
Also, add the HEVC_ prefix to them, since similarly named values exist
for H.264 as well and are sometimes used in the same code.
Add support for parsing SEI_TYPE_MASTERING_DISPLAY_INFO and propagate contents into
the AVMasteringDisplayMetadata side data. Primaries are ordered in RGB order and
the values are converted to rationals ([0,1] for CEI 1931 Chroma coords,
and cd/m^2 for luma).
Signed-off-by: Neil Birkbeck <neil.birkbeck@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
get_ue_golomb() cannot decode values larger than 8190 (the maximum
value that can be golomb encoded in 25 bits) and produces the error
"Invalid UE golomb code" if a larger value is encountered. Use
get_ue_golomb_long() instead (which supports 63 bits, up to 4294967294)
when valid h264/hevc values can exceed 8190.
This updates decoding of the following values: (maximum)
first_mb_in_slice 36863* for level 5.2
abs_diff_pic_num_minus1 131071
difference_of_pic_nums_minus1 131071
idr_pic_id 65535
recovery_frame_cnt 65535
frame_packing_arrangement_id 4294967294
frame_packing_arrangement_repetition_period 16384
display_orientation_repetition_period 16384
An alternative would be to modify get_ue_golomb() to handle encoded
values of up to 49 bits as was done for get_se_golomb() in a92816c.
In that case get_ue_golomb() could continue to be used for all of
these except frame_packing_arrangement_id.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Just realized my previous patch doesn't work quite right. I uploaded a better
sample file that actually has visible captions to /incoming/hevc_cc.ts. I
tested with that file doing hevc->x264 and it works.
This is basically an exact copy of the existing h264 logic.
Signed-off-by: Will Kelleher <wkelleher@gogoair.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* commit '979cb55103fa8e8274806e496901203742c686d1':
hevc: Split the sei parsing in 3 functions
Conflicts:
libavcodec/hevc_sei.c
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
* commit '043f46f5741e1a5caedf55d788e1a72aae3b7605':
hevc: Use switch instead of if-nests in decode_nal_sei_message
Conflicts:
libavcodec/hevc_sei.c
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
* commit '2cd841c0776535be56e4db67485fdd9509c9b9f4':
hevc: Use a proper enum for the SEI values
Conflicts:
libavcodec/hevc_sei.c
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
* qatar/master:
hevc: parse frame packing arrangement SEI messages and save relevant stereo3d information
Conflicts:
libavcodec/hevc.h
libavcodec/hevc_sei.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Initially written by Guillaume Martres <smarter@ubuntu.com> as a GSoC
project. Further contributions by the OpenHEVC project and other
developers, namely:
Mickaël Raulet <mraulet@insa-rennes.fr>
Seppo Tomperi <seppo.tomperi@vtt.fi>
Gildas Cocherel <gildas.cocherel@laposte.net>
Khaled Jerbi <khaled_jerbi@yahoo.fr>
Wassim Hamidouche <wassim.hamidouche@insa-rennes.fr>
Vittorio Giovara <vittorio.giovara@gmail.com>
Jan Ekström <jeebjp@gmail.com>
Anton Khirnov <anton@khirnov.net>
Martin Storsjö <martin@martin.st>
Luca Barbato <lu_zero@gentoo.org>
Yusuke Nakamura <muken.the.vfrmaniac@gmail.com>
Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Diego Biurrun <diego@biurrun.de>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
cherry picked from commit b971f2c8fdc60f8bab605a6e8060492eb548a53a
cherry picked from commit e57b0a2c915ce6b8a9d57b8292f6581f0680842e
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
