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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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118 lines
3.7 KiB
Text
118 lines
3.7 KiB
Text
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gstreamer-vaapi
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VA-API support to GStreamer
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Copyright (C) 2010-2011 Splitted-Desktop Systems
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Copyright (C) 2011-2013 Intel Corporation
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Copyright (C) 2011 Collabora Ltd.
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License
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-------
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gstreamer-vaapi helper libraries and plugin elements are available
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under the terms of the GNU Lesser General Public License v2.1+
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Overview
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--------
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gstreamer-vaapi consists in a collection of VA-API based plugins for
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GStreamer and helper libraries.
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* `vaapidecode' is used to decode JPEG, MPEG-2, MPEG-4, H.264, VC-1,
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WMV3 videos to video/x-vaapi-surfaces surfaces, depending on the
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underlying HW capabilities.
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* `vaapiupload' is used to convert from video/x-raw-yuv pixels to
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video/x-vaapi-surface surfaces.
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* `vaapidownload' is used to convert from video/x-vaapi-surface
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surfaces to video/x-raw-yuv pixels.
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* `vaapipostproc' is used to postprocess video/x-vaapi-surface
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surfaces, for e.g. deinterlacing, denoising and sharpening.
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* `vaapisink' is used to display video/x-vaapi-surface surfaces to
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screen.
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Features
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--------
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* VA-API support from 0.29 to 0.32
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* JPEG, MPEG-2, MPEG-4, H.264 and VC-1 ad-hoc decoders
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* OpenGL rendering through VA/GLX or GLX texture-from-pixmap + FBO
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* Support for the Wayland display server
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* Support for headless decode pipelines with VA/DRM
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* Support for major HW video decoding solutions on Linux (AMD, Intel, NVIDIA)
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* Support for VA Video Processing APIs (VA/VPP)
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- Scaling and color conversion
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- Image enhancement filters: Sharpening, Noise Reduction
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- Advanced deinterlacing: Motion-Adaptive, Motion-Compensated
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Requirements
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------------
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Software requirements
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* GStreamer 0.10.x:
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libglib2.0-dev (>= 2.28)
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libgstreamer0.10-dev (>= 0.10.36)
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or with GstBaseSink::query()
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libgstreamer-plugins-base0.10-dev (>= 0.10.36)
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libgstreamer-plugins-bad0.10-dev (>= 0.10.22.1)
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or with GstVideoContext, GstSurfaceBuffer, codecparsers
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* GStreamer 1.0.x (including GStreamer 1.2):
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libglib2.0-dev (>= 2.28)
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libgstreamer1.0-dev (>= 1.0.0)
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libgstreamer-plugins-base1.0-dev (>= 1.0.0)
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libgstreamer-plugins-bad1.0-dev (>= 1.0.0)
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* Renderers:
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DRM: libva-dev (>= 1.1.0), libdrm-dev, libudev-dev
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X11: libva-dev (>= 1.0.1)
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GLX: libva-dev (>= 1.0.3)
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Wayland: libva-dev (>= 1.1.0), libwayland-dev (>= 0.95.0)
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Hardware requirements
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* AMD platforms with UVD2 (XvBA supported)
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* Intel Eaglelake (G45)
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* Intel Ironlake, Sandy Bridge and Ivy Bridge (HD Graphics)
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* Intel Poulsbo (US15W)
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* Intel Medfield or Cedar Trail
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* NVIDIA platforms with PureVideo (VDPAU supported)
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Usage
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-----
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VA elements are automatically plugged into GStreamer pipelines. So,
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using playbin (or playbin2 with GStreamer 0.10) should work as is.
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However, here are a few alternate pipelines that could be manually
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constructed.
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* Play an H.264 video with an MP4 container in fullscreen mode
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$ gst-launch-1.0 -v filesrc location=/path/to/video.mp4 ! \
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qtdemux ! vaapidecode ! vaapisink fullscreen=true
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* Play a raw MPEG-2 interlaced stream
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$ gst-launch-1.0 -v filesrc location=/path/to/mpeg2.bits ! \
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mpegvideoparse ! vaapidecode ! vaapipostproc ! vaapisink
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* Convert from one pixel format to another, while also downscaling
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$ gst-launch-1.0 -v filesrc location=/path/to/raw_video.yuv ! \
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videoparse format=yuy2 width=1280 height=720 ! \
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vaapipostproc format=nv12 height=480 ! vaapisink
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Reporting Bugs
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--------------
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Bugs can be reported in the GNOME Bugzilla system at:
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<https://bugzilla.gnome.org/enter_bug.cgi?product=gstreamer-vaapi>
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From the main page, new bugs can be reported through New -> Other ->
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gstreamer-vaapi product.
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