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README: updates.

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Drop references to deprecated plugins (vaapiupload, vaapidownload),
mention that support for GStreamer 0.10 is deprecated, make overview
more descriptive in certain aspects.
This commit is contained in:
Gwenole Beauchesne 2014-07-03 22:34:35 +02:00
parent 9a3e4f9d3e
commit 5fe46af4d3
1 changed files with 22 additions and 21 deletions
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README
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@ -20,34 +20,32 @@ 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.
* `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 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 an actual muxer like qtmux for MP4 containers.
* `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.
* `vaapiupload' 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.
* `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.
* `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 0.34
* JPEG, MPEG-2, MPEG-4, H.264 and VC-1 ad-hoc decoders
* MPEG-2, H.264 ad-hoc encoders
* 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
@ -72,7 +70,10 @@ Software requirements
libgstreamer-plugins-bad0.10-dev (>= 0.10.22.1)
or with GstVideoContext, GstSurfaceBuffer, codecparsers
* GStreamer 1.0.x (including GStreamer 1.2, 1.3):
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)