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88 lines
2.5 KiB
Text
88 lines
2.5 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) 2011-2012 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 MPEG-2, MPEG-4, H.264, VC-1, WMV3
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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.
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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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* 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 major HW video decoding solutions on Linux (AMD, Intel, NVIDIA)
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Requirements
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------------
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Software requirements
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* libva-dev >= 1.0.3 (VA/GLX)
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* libgstreamer0.10-dev >= 0.10.35.1
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or with GstBaseSink::query()
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* libgstreamer-plugins-base0.10-dev >= 0.10.35
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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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If codecparsers-based decoders are not used:
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* libavcodec-dev >= 0.6
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or with <libavcodec/vaapi.h>
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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 playbin2 should work as is. However, here are a few alternate
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pipelines constructed manually.
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* Play an H.264 video with an MP4 container in fullscreen mode
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$ gst-launch-0.10 -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-0.10 -v filesrc location=/path/to/mpeg2.bits ! \
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mpegvideoparse ! vaapidecode ! vaapipostproc ! vaapisink
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