gstreamer/subprojects/gstreamer-vaapi
Vivienne Watermeier 6c2f6c3bd4 all: Use new navigation interface and API
Use and implement the new navigation interface in all relevant sink elements,
and use API functions everywhere instead of directy accessing the event structure.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1633>
2022-03-23 13:14:52 +00:00
..
docs meson: Add explicit check: kwarg to all run_command() calls 2022-01-09 18:12:47 +05:30
gst all: Use new navigation interface and API 2022-03-23 13:14:52 +00:00
gst-libs codecs: av1: Fix state when we show existing keyframe 2022-03-19 11:56:33 +00:00
scripts Move files from gstreamer-vaapi into the "subprojects/gstreamer-vaapi/" subdir 2021-09-24 16:14:54 -03:00
tests all: Use new navigation interface and API 2022-03-23 13:14:52 +00:00
.gitignore Move files from gstreamer-vaapi into the "subprojects/gstreamer-vaapi/" subdir 2021-09-24 16:14:54 -03:00
AUTHORS Move files from gstreamer-vaapi into the "subprojects/gstreamer-vaapi/" subdir 2021-09-24 16:14:54 -03:00
ChangeLog Release 1.20.0 2022-02-03 20:03:15 +00:00
COPYING.LIB Move files from gstreamer-vaapi into the "subprojects/gstreamer-vaapi/" subdir 2021-09-24 16:14:54 -03:00
gstreamer-vaapi.doap Release 1.20.0 2022-02-03 20:03:15 +00:00
meson.build meson: Bump all meson requirements to 0.60 2022-03-18 22:49:16 +00:00
meson_options.txt vaapi: Use meson's features for option selection. 2022-02-14 09:46:01 +00:00
NEWS Release 1.20.0 2022-02-03 20:03:15 +00:00
README Move files from gstreamer-vaapi into the "subprojects/gstreamer-vaapi/" subdir 2021-09-24 16:14:54 -03:00
RELEASE Release 1.20.0 2022-02-03 20:03:15 +00:00

  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>