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GStreamer multimedia framework
2940a74ea4
The previous fix was only valid to express the maximum size of the macroblock layer, i.e. without any headers. Now, also account for the slice headers and top picture header, but also any other header we might stuff into the VA coded buffer, e.g. sequence headers. |
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gst | ||
gst-libs | ||
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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) 2011-2013 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.