gstreamer/README

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gstreamer-vaapi
VA-API support to GStreamer
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Copyright (C) 2010-2011 Splitted-Desktop Systems
Copyright (C) 2011-2012 Intel Corporation
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Copyright (C) 2011 Collabora Ltd.
License
-------
gstreamer-vaapi helper libraries and plugin elements are available
under the terms of the GNU Lesser General Public License v2.1+
Overview
--------
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gstreamer-vaapi consists in a collection of VA-API based plugins for
GStreamer and helper libraries.
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* `vaapidecode' is used to decode MPEG-2, MPEG-4, H.264, VC-1, WMV3
videos to video/x-vaapi-surfaces surfaces, depending on the
underlying HW capabilities.
* `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
surfaces to video/x-raw-yuv pixels.
* `vaapipostproc' is used to postprocess video/x-vaapi-surface
surfaces, for e.g. deinterlacing.
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* `vaapisink' is used to display video/x-vaapi-surface surfaces to
screen.
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Features
--------
* VA-API support from 0.29 to 0.32
* 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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Software requirements
* libva-dev >= 1.0.3 (VA/GLX)
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* libgstreamer0.10-dev >= 0.10.35.1
or with GstBaseSink::query()
* libgstreamer-plugins-base0.10-dev >= 0.10.35
* libgstreamer-plugins-bad0.10-dev >= 0.10.22.1
or with GstVideoContext, GstSurfaceBuffer, codecparsers
If codecparsers-based decoders are not used:
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* libavcodec-dev >= 0.6
or with <libavcodec/vaapi.h>
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Hardware requirements
* AMD platforms with UVD2 (XvBA supported)
* Intel Eaglelake (G45)
* Intel Ironlake, Sandy Bridge and Ivy Bridge (HD Graphics)
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* Intel Poulsbo (US15W)
* Intel Medfield or Cedar Trail
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* NVIDIA platforms with PureVideo (VDPAU supported)
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Usage
-----
* Play an H.264 video with an MP4 container in fullscreen mode
$ gst-launch-0.10 -v filesrc location=/path/to/video.mp4 ! \
qtdemux ! vaapidecode ! vaapisink fullscreen=true