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GStreamer multimedia framework
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Gwenole Beauchesne 9afe700005 vaapidecode: improve "no free surface" conditions. 
Previously, vaapidecode would wait up to one second until a free surface
is available, or it aborts decoding. Now, vaapidecode waits until the
last decoded surface was to be presented, plus one second. Besides, end
times are now expressed relative to the monotonic clock.
2012-09-11 17:08:47 +02:00
debian.upstream Add initial support for VA/DRM. 2012-08-01 16:40:17 +02:00
docs vaapisink: drop obsolete GstVaapiVideoSink interface. 2012-08-29 13:20:17 +02:00
gst vaapidecode: improve "no free surface" conditions. 2012-09-11 17:08:47 +02:00
gst-libs decoder: propagate buffer duration downstream. 2012-09-11 17:08:47 +02:00
pkgconfig pkgconfig: fix dependencies and slightly improve description. 2012-09-07 15:31:09 +02:00
tests tests: dump VA display properties. 2012-08-28 17:42:19 +02:00
.gitignore libs: use generic g_cclosure_marshal_VOID__VOID(). 2012-07-19 15:19:16 +02:00
AUTHORS AUTHORS: update to match current authors. 2012-03-16 14:21:36 +01:00
autogen.sh autogen: fix configure script generation when srcdir != builddir. 2012-08-27 10:25:18 +02:00
configure.ac configure: fix check for VA/DRM API. 2012-09-07 11:44:44 +02:00
COPYING.LIB Relicense gst-libs/ code to LGPL v2.1+. 2010-09-20 12:55:42 +02:00
Makefile.am configure: put m4 macros and autogenerated files into m4/ directory. 2012-07-19 13:07:20 +02:00
NEWS Add initial support for VA/DRM. 2012-08-01 16:40:17 +02:00
README Update introduction and changelog. 2012-04-02 11:38:44 +02:00

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