gstreamer-vaapi
VA-API support to GStreamer
- Copyright (C) 2010 Splitted-Desktop Systems
+ Copyright (C) 2010-2011 Splitted-Desktop Systems
+ Copyright (C) 2011-2014 Intel Corporation
+ Copyright (C) 2011 Collabora Ltd.
License
-------
-gstreamer-vaapi helper libraries are available under the terms of the
-GNU Lesser General Public License v2.1+.
-
-gstreamer-vaapi plugin elements are available under the terms of the
-GNU General Public License v2+.
+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.
+ * `vaapidecode' is used to decode JPEG, MPEG-2, MPEG-4:2, H.264 AVC,
+ H.264 MVC, VP8, VC-1, WMV3 videos to VA surfaces, depending on the
+ underlying hardware capabilities. This plugin is also able to
+ implicitly download the decoded surface to raw YUV buffers.
+
+ * `vaapiencode_<CODEC>' is used to encode into MPEG-2, H.264 AVC,
+ H.264 MVC videos, depending on the actual value of <CODEC> (mpeg2,
+ h264, etc.). By default, raw format bitstreams are generated, so
+ the result may be piped to a muxer. e.g. qtmux for MP4 containers.
- * `vaapiconvert' is used to convert from video/x-raw-yuv pixels to
- video/x-vaapi-surface surfaces.
+ * `vaapipostproc' is used to filter VA surfaces, for e.g. scaling,
+ deinterlacing (bob, motion-adaptive, motion-compensated), noise
+ reduction or sharpening. This plugin is also used to upload raw
+ YUV pixels into VA surfaces.
- * `vaapisink' is used to display video/x-vaapi-surface surfaces to
- screen.
+ * `vaapisink' is used to render VA surfaces to an X11 or Wayland
+ display. This plugin also features a "headless" mode (DRM) more
+ suited to remote transcode scenarios, with faster throughput.
Features
--------
- * VA-API support from 0.29 to 0.31
+ * VA-API support from 0.29 to 0.35
+ * JPEG, MPEG-2, MPEG-4, H.264 AVC, H.264 MVC, VP8 and VC-1 ad-hoc decoders
+ * MPEG-2, H.264 AVC and H.264 MVC ad-hoc encoders
* 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 HW video encoding on Intel HD Graphics hardware
+ * 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
- * libgstreamer0.10-dev >= 0.10.0
- * libgstreamer-plugins-base0.10-dev >= 0.10.0
- * libva-dev >= 0.31.0-1+sds9 (VA/GLX)
- * libavcodec-dev >= 0.6 or with <libavcodec/vaapi.h>
+ * GStreamer 0.10.x [DEPRECATED]:
+ 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
+
+ Note: support for GStreamer 0.10 APIs is deprecated and will be
+ removed in a future release.
+
+ * GStreamer 1.0.x (up to including GStreamer 1.4):
+ 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 Poulsbo (US15W)
* Intel Eaglelake (G45)
- * Intel Ironlake (HD Graphics)
+ * Intel Ironlake, Sandybridge, Ivybridge and Haswell (HD Graphics)
+ * Intel Poulsbo (US15W)
+ * Intel Medfield or Cedar Trail
* NVIDIA platforms with PureVideo (VDPAU supported)
Usage
-----
-The GStreamer pipeline currently has to be built manually.
-i.e. neither decodebin{,2} nor playbin{,2} would select the VA-API
-elements automatically.
+ 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-0.10 -v filesrc location=/path/to/video.mp4 ! \
+ $ 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
+
+ * Encode a 1080p stream in raw I420 format into H.264
+ $ gst-launch-1.0 -v filesrc location=/path/to/raw_video.yuv ! \
+ videoparse format=i420 width=1920 height=1080 framerate=30/1 ! \
+ vaapiencode_h264 rate-control=cbr tune=high-compression ! \
+ qtmux ! filesink location=/path/to/encoded_video.mp4
+
-Caveats
+Sources
-------
- * No ad-hoc parser, vaapidecoder currently relies on FFmpeg
- * MPEG-4 Part-2 (DivX) has decoding bugs
+ gstreamer-vaapi is Open Source software, so updates to this
+ framework are really easy to get.
+
+ Stable source code releases can be found at:
+ <http://www.freedesktop.org/software/vaapi/releases/gstreamer-vaapi/>
+
+ Git repository for work-in-progress changes is available at:
+ <http://gitorious.org/vaapi/gstreamer-vaapi>
+
+
+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.
projects / platform / upstream / gstreamer-vaapi.git / blobdiff