| 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> |