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GStreamer multimedia framework
8ebe4d63d5
Some VA drivers (e.g. EMGD) can have completely random values for initial display attributes. So, try to improve the discovery process to check the initial display attribute values actually fall within valid bounds. If not, try to reset those to some sensible values like the default value reported through vaQueryDisplayAttributes(). |
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gst | ||
gst-libs | ||
pkgconfig | ||
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AUTHORS | ||
autogen.sh | ||
configure.ac | ||
COPYING.LIB | ||
Makefile.am | ||
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README |
gstreamer-vaapi VA-API support to GStreamer Copyright (C) 2010-2011 Splitted-Desktop Systems Copyright (C) 2011-2012 Intel Corporation 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 -------- gstreamer-vaapi consists in a collection of VA-API based plugins for GStreamer and helper libraries. * `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 video/x-vaapi-surface surfaces. * `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. * `vaapisink' is used to display video/x-vaapi-surface surfaces to screen. Features -------- * VA-API support from 0.29 to 0.32 * MPEG-2, MPEG-4, H.264 and VC-1 ad-hoc decoders * OpenGL rendering through VA/GLX or GLX texture-from-pixmap + FBO * Support for major HW video decoding solutions on Linux (AMD, Intel, NVIDIA) Requirements ------------ Software requirements * libva-dev >= 1.0.3 (VA/GLX) * 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: * libavcodec-dev >= 0.6 or with <libavcodec/vaapi.h> Hardware requirements * AMD platforms with UVD2 (XvBA supported) * Intel Eaglelake (G45) * Intel Ironlake, Sandy Bridge and Ivy Bridge (HD Graphics) * Intel Poulsbo (US15W) * Intel Medfield or Cedar Trail * NVIDIA platforms with PureVideo (VDPAU supported) Usage ----- VA elements are automatically plugged into GStreamer pipelines. So, using playbin2 should work as is. However, here are a few alternate pipelines constructed manually. * 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 * Play a raw MPEG-2 interlaced stream $ gst-launch-0.10 -v filesrc location=/path/to/mpeg2.bits ! \ mpegvideoparse ! vaapidecode ! vaapipostproc ! vaapisink