Drivers for libva that act as a translation layer to VA-API from:
- VDPAU (default)
- ...
In a future more drivers could be added.
Refer to data/doc/flu-va-drivers/README.md.
mkdir builddir
meson builddir
ninja -C builddir
# or: meson compile -C builddirThis step can be omitted following the steps in on "How to use" section.
sudo ninja install
Refer to data/doc/flu-va-drivers/README.md.
The following decoders are supported:
- H264
The following profiles are supported:
- VAProfileH264ConstrainedBaseline
- VAProfileH264Main
- VAProfileH264High
The following chroma subsamplings are supported:
- VA_RT_FORMAT_YUV420
- First, ensure that Github Actions build workflow on last commit is on green status.
- Submit a PR with following changes: change version in meson.build to the desired one, e.g. 0.0.1
- Wait for that PR to be merged.
- Tag the resulting commit as the desired release version, e.g. 0.0.1
- Submit a PR with the following changes: change version in meson.build to the next desired version, suffixed by
-dev, e.g. 0.0.2-dev.
The way we're testing consist on try to decode using ffmpeg with this
driver and checking the libva trace and/or debugging it with gdb. Here is an
example script to do it:
#gdb="gdb --args"
url='https://www.itu.int/wftp3/av-arch/jvt-site/draft_conformance/AVCv1/CVWP1_TOSHIBA_E.zip'
test_file="CVWP1_TOSHIBA_E.264"
[ -f "$test_file" ] || wget "$url" -qO - | zcat > "$test_file"
rm -fv ./deleteme.out
rm -fv ./libva_ffmpeg*
DISPLAY=:0 \
LIBVA_TRACE=./libva_ffmpeg \
LIBVA_DRIVER_NAME=flu_va_drivers_vdpau \
LIBVA_DRIVERS_PATH=$PWD/builddir/src/ \
$gdb ffmpeg \
-hwaccel vaapi \
-threads 1 \
-init_hw_device "vaapi=vaapi0:,connection_type=x11" \
-i "$test_file" \
-vf format=pix_fmts=yuv420p \
-f rawvideo \
./deleteme.outRefer to data/doc/flu-va-drivers/README.md.