X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=README;h=69c841358b141f80cdcf690d6a80b5b51b7b5e3a;hb=faefd62e9be3e36cc0465f5e66e1711d7b5d7a03;hp=a9243e395f3381b37d1ac76ce527b56d41a894c9;hpb=08e8f3e671f86f2191609bc6485e2dd75a1eff8b;p=platform%2Fupstream%2Fgstreamer-vaapi.git diff --git a/README b/README index a9243e3..69c8413 100644 --- a/README +++ b/README @@ -3,14 +3,16 @@ VA-API support to GStreamer Copyright (C) 2010-2011 Splitted-Desktop Systems - Copyright (C) 2011 Intel Corporation + Copyright (C) 2011-2014 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+ +gstreamer-vaapi helper libraries and plugin elements are available +under the terms of the GNU Lesser General Public License v2.1+ + Overview -------- @@ -18,13 +20,24 @@ 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 + * `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. - * `vaapiconvert' is used to convert from video/x-raw-yuv pixels to + * `vaapiencode_' is used to encode into MPEG-2, H.264 videos, + depending on the actual value of (mpeg2, h264, etc.). By + default, raw format bitstreams are generated, so the result may be + piped to an actual muxer like qtmux for MP4 containers. + + * `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. @@ -32,9 +45,18 @@ GStreamer and helper libraries. Features -------- - * VA-API support from 0.29 to 0.31 + * VA-API support from 0.29 to 0.34 + * JPEG, MPEG-2, MPEG-4, H.264 and VC-1 ad-hoc decoders + * MPEG-2, H.264 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 @@ -42,29 +64,82 @@ Requirements Software requirements - * libgstreamer0.10-dev >= 0.10.10 - * libgstreamer-plugins-base0.10-dev >= 0.10.16 - * libva-dev >= 0.31.0-1+sds9 (VA/GLX) - * libavcodec-dev >= 0.6 or with + * 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, 1.3): + 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 (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 ----- + 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 + gstreamer-vaapi is Open Source software, so updates to this + framework are really easy to get. + + Stable source code releases can be found at: + + + Git repository for work-in-progress changes is available at: + + + +Reporting Bugs +-------------- + + Bugs can be reported in the GNOME Bugzilla system at: + + + From the main page, new bugs can be reported through New -> Other -> + gstreamer-vaapi product.