GStreamer multimedia framework
Find a file
Wind Yuan 009e4522bf decoder: h264: add support for constrained baseline profile.
Recognize streams marked as conforming to the "Constrained Baseline
Profile". If VA driver supports that as is, fine. Otherwise, fallback
to baseline, main or high profile.

Constrained Baseline Profile conveys coding tools that are common
to baseline profile and main profile.

https://bugzilla.gnome.org/show_bug.cgi?id=719947

[Added fallbacks to main and high profiles]
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
2013-12-09 13:11:56 +01:00
debian.upstream Fix detection and packaging of GStreamer 1.2.x builds. 2013-09-27 14:24:02 +02:00
docs surfaceproxy: add copy function. 2013-11-28 17:32:18 +01:00
ext codecparsers: update to gst-vaapi-branch commit 177c73b. 2013-12-09 12:07:28 +01:00
gst encoder: clean-ups and document public APIs. 2013-12-04 19:14:38 +01:00
gst-libs decoder: h264: add support for constrained baseline profile. 2013-12-09 13:11:56 +01:00
pkgconfig configure: rename GST_MAJORMINOR to GST_API_VERSION. 2013-03-20 11:44:10 +01:00
tests Fix build with GStreamer >= 1.3. 2013-11-27 15:08:40 +01:00
.gitignore codecparsers: jpeg: use submodule sources. 2012-10-11 14:19:38 +02:00
.gitmodules Add videoutils submodule for GstVideoDecoder APIs. 2012-12-21 16:01:16 +01:00
AUTHORS AUTHORS: update to match current authors. 2012-03-16 14:21:36 +01:00
autogen.sh Add videoutils submodule for GstVideoDecoder APIs. 2012-12-21 16:01:16 +01:00
configure.ac vaapiencode: add initial support for GStreamer 0.10. 2013-11-27 17:23:56 +01:00
COPYING.LIB Relicense gst-libs/ code to LGPL v2.1+. 2010-09-20 12:55:42 +02:00
Makefile.am debian: fix make dist for packaging. 2012-10-17 15:49:23 +02:00
NEWS 0.5.7. 2013-11-21 23:52:43 +01:00
README README: updates. 2013-11-22 06:59:51 +01:00

  gstreamer-vaapi
  VA-API support to GStreamer

  Copyright (C) 2010-2011 Splitted-Desktop Systems
  Copyright (C) 2011-2013 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, denoising and sharpening.

  * `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)
  * Support for VA Video Processing APIs (VA/VPP)
    - Scaling and color conversion
    - Image enhancement filters: Sharpening, Noise Reduction
    - Advanced deinterlacing: Motion-Adaptive, Motion-Compensated


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

  * GStreamer 1.0.x (including GStreamer 1.2):
      libglib2.0-dev (>= 2.28)
      libgstreamer1.0-dev (>= 1.0.0)
      libgstreamer-plugins-base1.0-dev (>= 1.0.0)
      libgstreamer-plugins-bad1.0-dev (>= 1.0.0)

  * 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 playbin (or playbin2 with GStreamer 0.10) should work as is.
  However, here are a few alternate pipelines that could be manually
  constructed.

  * Play an H.264 video with an MP4 container in fullscreen mode
  $ gst-launch-1.0 -v filesrc location=/path/to/video.mp4 ! \
      qtdemux ! vaapidecode ! vaapisink fullscreen=true

  * Play a raw MPEG-2 interlaced stream
  $ gst-launch-1.0 -v filesrc location=/path/to/mpeg2.bits ! \
      mpegvideoparse ! vaapidecode ! vaapipostproc ! vaapisink

  * Convert from one pixel format to another, while also downscaling
  $ gst-launch-1.0 -v filesrc location=/path/to/raw_video.yuv ! \
      videoparse format=yuy2 width=1280 height=720 ! \
      vaapipostproc format=nv12 height=480 ! vaapisink

Reporting Bugs
--------------

  Bugs can be reported in the GNOME Bugzilla system at:
  <https://bugzilla.gnome.org/enter_bug.cgi?product=gstreamer-vaapi>

  From the main page, new bugs can be reported through New -> Other ->
  gstreamer-vaapi product.