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>
Use AVCodecContext.compression_level rather than a private option,
replacing the H.264-specific quality option (which stays only for
compatibility).
This now works with the H.265 encoder in the i965 driver, as well as
the existing cases with the H.264 encoder.
Add comments to describe the sources of the constraint values expressed here,
and add some more related values which will be used in following patches.
Fix the incorrect values for SPS and PPS count (they are not the same as those
used for H.264), and remove HEVC_MAX_CU_SIZE because it is not used anywhere.
mov_finalize_stsd_codec() parses stream information from the ALAC extradata,
so run it after the extradata processing is completed in mov_read_stsd().
Fixes playback of 96kHz ALAC streams muxed by qaac or the reference alac encoder.
Adapted from an FFmpeg patch by Hendrik Leppkes <h.leppkes@gmail.com>
Bug-Id: 1072
Fixes an infinite loop when a demuxer fails to seek to the start of the input.
Signed-off-by: Peter Große <pegro@friiks.de>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Use the AVFrame.opaque_ref field. The original user's opaque_ref is
wrapped in the lavc struct and then unwrapped before the frame is
returned to the caller.
This new struct will be useful in the following commits.
Use the correct ctxIdxInc calculation for coded_block_flag.
Keep old behavior for old versions of x264 for backward compatibility.
CC: libav-stable@libav.org
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Do not use the one in the SEI directly as that is reset at certain
points.
Inspired by patches from Michael Niedermayer <michaelni@gmx.at> and
Anton Mitrofanov <BugMaster@narod.ru>.
CC: libav-stable@libav.org
Black isn't always just memset(ptr, 0, size). Limited YUV in particular
requires relatively non-obvious values, and filling a frame with
repeating 0 bytes is disallowed in some contexts. With component sizes
larger than 8 or packed YUV, this can become relatively complicated. So
having a generic function for this seems helpful.
In order to handle the complex cases in a generic way without destroying
performance, this code attempts to compute a black pixel, and then uses
that value to clear the image data quickly by using a function like
memset.
Common cases like yuv410p10 or rgba can't be handled with a simple
memset, so there is some code to fill memory with 2/4/8 byte patterns.
For the remaining cases, a generic slow fallback is used.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
The current qsv deinterlace module does not work at all because MSDK needs user to pass
extra parameters to enable hint functions,such as denoise,deinterlace,composition and so on.
Usage:-hwaccel qsv -r 25 -c:v h264_qsv -i in -vf deinterlace_qsv=bob -b 2M
-maxrate 3M -c:v h264_qsv -y out.h264
Signed-off-by: ChaoX A Liu <chaox.a.liu@gmail.com>
Signed-off-by: Zhengxu Huang <zhengxu.maxwell@gmail.com>
Signed-off-by: Andrew Zhang <huazh407@gmail.com>
Change-Id: I9e7ddcf884f2788c2820f6c98affacfb9d8f3287
Signed-off-by: Maxym Dmytrychenko <maxim.d33@gmail.com>
This mode apparently does not support decoding of HEVC Main (8 bit).
With D3D11 and Intel drivers on Windows 10 I get green corruption, while
using DXVA2_ModeHEVC_VLD_Main works.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Otherwise the first decoded frame will still be tagged with the
original transfer instead of the alternative one.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
glibc introduced _DEFAULT_SOURCE in version 2.19 to replace _BSD_SOURCE and
_SVID_SOURCE, which were deprecated in version 2.20. Add _DEFAULT_SOURCE
where the latter two are used to be forwards-compatible and avoid warnings
about the use of deprecated definitions.
Do not use skip_remaining() to fully wipe the cache, as this could do
a 64-bit shift of a 64-bit variable which is undefined behavior in C.
Instead set the related variables to zero directly.
Thanks to Uoti for pointing out the problem.
CC: libav-stable@libav.org
Avoid anonymously typedeffed structs and enums, drop an unused context member,
fix a small wording mishap, sizeof(type) ---> sizeof(*variable), drop a
needlessly verbose log message, use av_malloc_array() where appropriate.
Now it is possible to adjust compression speed vs R/D when needed
and also skip vintage player compatibility at will.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
version 2013-02-08 Rl
- fixes/optimization in multistrip encoding and codebook size choice,
quality/bitrate is now better than that of the binary proprietary encoder
version 2013-02-12 Rl
- separated codebook training sets, avoided the transfer of wasted bytes,
which yields both better quality and smaller files
- now using the correct colorspace (TODO: move conversion to libswscale)
version 2013-02-14 Rl "Valentine's Day" version:
- made strip division more robust
- minimized bruteforcing the number of strips,
(costs some R/D but speeds up compession a lot), the heuristic
assumption is that score as a function of the number of strips has
one wide minimum which moves slowly, of course not fully true
- simplified codebook generation,
the old code was meant for other optimizations than we actually do
- optimized the codebook generation / error estimation for MODE_MC
version 2013-04-28 Rl
- bugfixed codebook optimization logic
version 2014-01-20 Rl
- made the encoder compatible with vintage decoders
and added some yet unused code for possible future
incremental codebook updates
- fixed a small memory leak
version 2014-01-21 Rl
- believe it or not, now we get even smaller files, with better quality
(which means I missed an optimization earlier :)
Signed-off-by: Diego Biurrun <diego@biurrun.de>
Mark Thompson
Vittorio Giovara
Sean McGovern
Anton Khirnov
Peter Große
Anton Mitrofanov
Yogender Kumar Gupta
wm4
Huang, Zhengxu
Diego Biurrun
Luca Barbato
Alexandra Hájková
Timothy Gu
addr-see-the-website@aetey.se