This commit implements a standard, compliant, version 3 and version 4
FFv1 encoder, entirely in Vulkan. The encoder is written in standard
GLSL and requires a Vulkan 1.3 supporting GPU with the BDA extension.
The encoder can use any amount of slices, but nominally, should use
32x32 slices (1024 in total) to maximize parallelism.
All features are supported, as well as all pixel formats.
This includes:
- Rice
- Range coding with a custom quantization table
- PCM encoding
CRC calculation is also massively parallelized on the GPU.
Encoding of unaligned dimensions on subsampled data requires
version 4, or requires oversizing the image to 64-pixel alignment
and cropping out the padding via container flags.
Performance-wise, this makes 1080p real-time screen capture possible
at 60fps on even modest GPUs.
Reviewed-by: Anton Khirnov <anton@khirnov.net>
Reviewed-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: Peter Ross <pross@xvid.org>
This commit adds the first Vulkan hardware encoder.
Currently, P, and **B**-frames are supported. This marks the
first implementation to support both.
The encoder has feature-parity with VAAPI.
In order to avoid breaking older clients not yet using the new API, we
need to add backwards compatibility for codecs which have switched from
init_static() to get_supported_config().
This function can be removed entirely once the deprecated static fields
are removed.
This implementation is based on D3D12 Video Encoding Spec:
https://microsoft.github.io/DirectX-Specs/d3d/D3D12VideoEncoding.html
Sample command line for transcoding:
ffmpeg.exe -hwaccel d3d12va -hwaccel_output_format d3d12 -i input.mp4
-c:v hevc_d3d12va output.mp4
Signed-off-by: Tong Wu <tong1.wu@intel.com>
Add external encoder VVenC for H266/VVC encoding.
Register new encoder libvvenc.
Add libvvenc to wrap the vvenc interface.
libvvenc implements encoder option: preset,qp,qpa,period,
passlogfile,stats,vvenc-params,level,tier.
Enable encoder by adding --enable-libvvenc in configure step.
Co-authored-by: Christian Bartnik chris10317h5@gmail.com
Signed-off-by: Thomas Siedel <thomas.ff@spin-digital.com>
The LC3 audio codec is the default codec of Bluetooth LE audio.
This is a wrapper over the liblc3 library (https://github.com/google/liblc3).
Signed-off-by: Antoine Soulier <asoulier@google.com>
vvc decoder plug-in to avcodec.
split frames into slices/tiles and send them to vvc_thread for further decoding
reorder and wait for the frame decoding to be done and output the frame
Features:
+ Support I, P, B frames
+ Support 8/10/12 bits, chroma 400, 420, 422, and 444 and range extension
+ Support VVC new tools like MIP, CCLM, AFFINE, GPM, DMVR, PROF, BDOF, LMCS, ALF
+ 295 conformace clips passed
- Not support RPR, IBC, PALETTE, and other minor features yet
Performance:
C code FPS on an i7-12700K (x86):
BQTerrace_1920x1080_60_10_420_22_RA.vvc 93.0
Chimera_8bit_1080P_1000_frames.vvc 184.3
NovosobornayaSquare_1920x1080.bin 191.3
RitualDance_1920x1080_60_10_420_32_LD.266 150.7
RitualDance_1920x1080_60_10_420_37_RA.266 170.0
Tango2_3840x2160_60_10_420_27_LD.266 33.7
C code FPS on a M1 Mac Pro (ARM):
BQTerrace_1920x1080_60_10_420_22_RA.vvc 58.7
Chimera_8bit_1080P_1000_frames.vvc 153.3
NovosobornayaSquare_1920x1080.bin 150.3
RitualDance_1920x1080_60_10_420_32_LD.266 105.0
RitualDance_1920x1080_60_10_420_37_RA.266 133.0
Tango2_3840x2160_60_10_420_27_LD.266 21.7
Asm optimizations still working in progress. please check
https://github.com/ffvvc/FFmpeg/wiki#performance-data for the latest
Contributors (based on code merge order):
Nuo Mi <nuomi2021@gmail.com>
Xu Mu <toxumu@outlook.com>
Frank Plowman <post@frankplowman.com>
Shaun Loo <shaunloo10@gmail.com>
Wu Jianhua <toqsxw@outlook.com>
Thank you for reporting issues and providing performance reports:
Łukasz Czech <lukaszcz18@wp.pl>
Xu Fulong <839789740@qq.com>
Thank you for providing review comments:
Ronald S. Bultje <rsbultje@gmail.com>
James Almer <jamrial@gmail.com>
Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Co-authored-by: Xu Mu <toxumu@outlook.com>
Co-authored-by: Frank Plowman <post@frankplowman.com>
Co-authored-by: Shaun Loo <shaunloo10@gmail.com>
Co-authored-by: Wu Jianhua <toqsxw@outlook.com>
Partially fixes ticket #798
Reviewed-by: James Almer <jamrial@gmail.com>
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Peter Ross <pross@xvid.org>
This patch will add MPEG4 encoder using Android Mediacodec
Signed-off-by: Samuel Mira <samuel.mira@qt.io<mailto:samuel.mira@qt.io>>
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
The only encoders avaliable using mediacodec were h264 and hevc. This
patch adds the vp9 encoder.
Signed-off-by: Samuel Mira <samuel.mira@qt.io<mailto:samuel.mira@qt.io>>
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
This patch add another ARIB caption decoder using libaribcaption
external library.
Unlike libaribb24, it supports 3 types of subtitle outputs:
* text: plain text
* ass: ASS formatted text
* bitmap: bitmap image
Default subtitle type is ass as same as libaribb24.
Advantages compared with libaribb24 on ASS subtitle are:
* Subtitle positioning.
* Multi-rect subtitle: some captions are displayed at different
position at a time.
* More stability and reproducibility.
To compile with this feature:
* libaribcaption external library has to be pre-installed.
https://github.com/xqq/libaribcaption
* configure with `--enable-libaribcaption` option.
`--enable-libaribb24` and `--enable-libaribcaption` options are
not exclusive. If both enabled, libaribcaption precedes as
order listed in `libavcodec/allcodecs.c`.
Signed-off-by: rcombs <rcombs@rcombs.me>
Possible since 8d226fb9786f34760e80e0d6b403bd63e9ac4ddd.
Reviewed-by: James Zern <jzern-at-google.com@ffmpeg.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
The encoder seems to be trading blows with hevc_nvenc.
In terms of quality at low bitrate cbr settings, it seems to
outperform it even. It produces fewer artifacts and the ones it
does produce are less jarring to my perception.
At higher bitrates I had a hard time finding differences between
the two encoders in terms of subjective visual quality.
Using the 'slow' preset, av1_nvenc outperformed hevc_nvenc in terms
of encoding speed by 75% to 100% while performing above tests.
Needless to say, it always massively outperformed h264_nvenc in terms
of quality for a given bitrate, while also being slightly faster.
