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GStreamer multimedia framework
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Gwenole Beauchesne 91da4fcb18 mpeg2: fix memory leak of empty packets. 
Fix memory leakage of empty packets, i.e. packets that only contain
the start code prefix. In particular, free empty user-data packets.

Besides, the codec parser will already fail gracefully if the packet
to parse does not have the minimum required size. So, we can also
completely drop the block of code that used to handle packets of size 4
(including the start code).
2012-10-09 18:05:48 +02:00
debian.upstream debian: fix make dist for packaging. 2012-10-05 13:38:52 +02:00
docs docs: fix build for make dist. 2012-09-17 17:56:57 +02:00
gst vaapidecode: flush buffers when receiving EOS. 2012-10-09 14:01:15 +02:00
gst-libs mpeg2: fix memory leak of empty packets. 2012-10-09 18:05:48 +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 Bump version for development. 2012-10-01 09:21:03 +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 NEWS: updates. 2012-09-20 16:02:39 +02:00
README Fix and document build dependencies better. 2012-09-28 17:54:50 +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 JPEG, 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
  * JPEG, 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 the Wayland display server
  * Support for headless decode pipelines with VA/DRM
  * Support for major HW video decoding solutions on Linux (AMD, Intel, NVIDIA)


Requirements
------------

Software requirements

  * GStreamer 0.10.x:
      libglib2.0-dev (>= 2.28)
      libgstreamer0.10-dev (>= 0.10.36)
        or with GstBaseSink::query()
      libgstreamer-plugins-base0.10-dev (>= 0.10.36)
      libgstreamer-plugins-bad0.10-dev (>= 0.10.22.1)
        or with GstVideoContext, GstSurfaceBuffer, codecparsers

  * Renderers:
      DRM: libva-dev (>= 1.1.0), libdrm-dev, libudev-dev
      X11: libva-dev (>= 1.0.1)
      GLX: libva-dev (>= 1.0.3)
      Wayland: libva-dev (>= 1.1.0), libwayland-dev (>= 0.95.0)

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