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GStreamer multimedia framework
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gstreamer-vaapi.doap | ||
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RELEASE |
gstreamer-vaapi VA-API support to GStreamer Copyright (C) 2010-2011 Splitted-Desktop Systems Copyright (C) 2011-2020 Intel Corporation Copyright (C) 2011 Collabora Ltd. Copyright (C) 2015-2020 Igalia, S.L. License ------- gstreamer-vaapi helper libraries and plugin elements are available under the terms of the GNU Lesser General Public License v2.1+ Overview -------- gstreamer-vaapi consists in a collection of VA-API based plugins for GStreamer and helper libraries. * `vaapi<CODEC>dec' is used to decode JPEG, MPEG-2, MPEG-4:2, H.264 AVC, H.264 MVC, VP8, VP9, VC-1, WMV3, HEVC videos to VA surfaces, depending on the actual value of <CODEC> and the underlying hardware capabilities. This plugin is also able to implicitly download the decoded surface to raw YUV buffers. * `vaapi<CODEC>enc' is used to encode into MPEG-2, H.264 AVC, H.264 MVC, JPEG, VP8, VP9, HEVC videos, depending on the actual value of <CODEC> (mpeg2, h264, etc.) and the hardware capabilities. By default, raw format bitstreams are generated, so the result may be piped to a muxer, e.g. qtmux for MP4 containers. * `vaapipostproc' is used to filter VA surfaces, for e.g. scaling, deinterlacing (bob, motion-adaptive, motion-compensated), noise reduction or sharpening. This plugin is also used to upload raw YUV pixels into VA surfaces. * `vaapisink' is used to render VA surfaces to an X11 or Wayland display. This plugin also features a "headless" mode (DRM) more suited to remote transcode scenarios, with faster throughput. * `vaapioverlay` is a accelerated compositor that blends or composite different video streams. Features -------- * VA-API support from 0.39 * JPEG, MPEG-2, MPEG-4, H.264 AVC, H.264 MVC, VP8, VC-1, HEVC and VP9 ad-hoc decoders * MPEG-2, H.264 AVC,H.264 MVC, JPEG, VP8, VP9 and HEVC ad-hoc encoders * OpenGL rendering through VA/GLX or GLX texture-from-pixmap + FBO * Support for EGL backend * Support for the Wayland display server * Support for headless decode pipelines with VA/DRM * Support for major HW video decoding solutions on Linux (AMD, Intel, NVIDIA) * Support for HW video encoding on Intel HD Graphics hardware * Support for VA Video Processing APIs (VA/VPP) - Scaling and color conversion - Image enhancement filters: Sharpening, Noise Reductio, Color Balance, Skin-Tone-Enhancement - Advanced deinterlacing: Motion-Adaptive, Motion-Compensated Requirements ------------ Hardware requirements * Hardware supported by i965 driver or iHD, such as - Intel Ironlake, Sandybridge, Ivybridge, Haswell, Broadwell, Skylake, etc. (HD Graphics) - Intel BayTrail, Braswell - Intel Poulsbo (US15W) - Intel Medfield or Cedar Trail * Hardware supported by AMD Radeonsi driver, such as the list below - AMD Carrizo, Bristol Ridge, Raven Ridge, Picasso, Renoir - AMD Tonga, Fiji, Polaris XX, Vega XX, Navi 1X * Other hardware supported by Mesa VA gallium state-tracker Usage ----- VA elements are automatically plugged into GStreamer pipelines. So, using playbin should work as is. However, here are a few alternate pipelines that could be manually constructed. * Play an H.264 video with an MP4 container in fullscreen mode $ gst-launch-1.0 -v filesrc location=/path/to/video.mp4 ! \ qtdemux ! vaapidecodebin ! vaapisink fullscreen=true * Play a raw MPEG-2 interlaced stream $ gst-launch-1.0 -v filesrc location=/path/to/mpeg2.bits ! \ mpegvideoparse ! vaapimpeg2dec ! vaapipostproc ! vaapisink * Convert from one pixel format to another, while also downscaling $ gst-launch-1.0 -v filesrc location=/path/to/raw_video.yuv ! \ videoparse format=yuy2 width=1280 height=720 ! \ vaapipostproc format=nv12 height=480 ! vaapisink * Encode a 1080p stream in raw I420 format into H.264 $ gst-launch-1.0 -v filesrc location=/path/to/raw_video.yuv ! \ videoparse format=i420 width=1920 height=1080 framerate=30/1 ! \ vaapih264enc rate-control=cbr tune=high-compression ! \ qtmux ! filesink location=/path/to/encoded_video.mp4 Sources ------- gstreamer-vaapi is Open Source software, so updates to this framework are really easy to get. Stable source code releases can be found at: <https://gstreamer.freedesktop.org/src/gstreamer-vaapi/> GitLab repository for work-in-progress changes is available at: <https://gitlab.freedesktop.org/gstreamer/gstreamer-vaapi> Reporting Bugs -------------- Bugs can be reported in the GStreamer's GitLab system at: <https://gitlab.freedesktop.org/gstreamer/gstreamer-vaapi/issues>