Linux XRender 的硬件加速功能可以通过使用 VAAPI(Video Acceleration API)来实现。VAAPI 是一个开放的跨平台接口,专为支持硬件加速的视频编解码和处理任务而设计。以下是使用 VAAPI 的基本步骤:
sudo apt-get install autoconf automake debhelper ladspa-sdk libsoundio-dev libbluray-dev libbs2b-dev libcaca-dev libcdio-paranoia-dev libdvdnav-dev libdvdread-dev libegl1-mesa-dev libenca-dev libfontconfig1-dev libfreetype6-dev libfribidi-dev libgl1-mesa-dev libgbm-dev libgme-dev libgnutls28-dev libgsm1-dev libguess-dev libharfbuzz-dev libjack-jackd2-dev libjpeg-dev liblcms2-dev liblircclient-dev liblua5.3-dev libmodplug-dev libmp3lame-dev libnetcdf-dev libopenal-dev libopus-dev libopencore-amrnb-dev libopencore-amrwb-dev libpulse-dev librtmp-dev librubberband-dev libschroedinger-dev libsmbclient-dev libssh-dev libsoxr-dev libspeex-dev libtheora-dev libtool libtwolame-dev libuchardet-dev libv4l-dev libva-dev libvorbis-dev libvo-amrwbenc-dev libvpx-dev libwavpack-dev libx264-dev libx265-dev libx11-dev libxext-dev libxinerama-dev libxrandr-dev libxss-dev libxv-dev libxvidcore-dev pkg-config python python-docutils x11proto-core-dev yasm zlib1g-dev
cd ~
git clone https://github.com/01org/libva.git
cd libva
git checkout 1.7.3
./autogen.sh && ./configure && make && sudo make install
运行 vainfo
查看当前所支持硬解的视频压缩格式。
cd ~
git clone https://git.ffmpeg.org/ffmpeg.git
cd ffmpeg
./configure --disable-static --enable-shared --enable-gpl --enable-version3 --disable-debug --enable-vaapi && make && sudo make install
最后执行 ffmpeg -version
查看执行结果。
对于视频播放,可以使用 FFmpeg 结合 VAAPI 进行硬件加速解码。以下是一个简单的示例流程:
vaPutSurface
处理解码后的图像合成和渲染。请注意,具体的实现代码会根据不同的应用场景和需求有所不同。上述步骤提供了一个基本的框架,但在实际应用中,可能需要根据具体情况进行调整和优化。
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