GStreamer multimedia framework
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Hyunjun Ko b41d72b7c5 libs: encoder/context: query region of interest support
Queries if the driver supports "Region of Interest" (ROI) during the config
creation.

  This attribute conveys whether the driver supports region-of-interest (ROI)
  encoding, based on user provided ROI rectangles.  The attribute value is
  partitioned into fields as defined in the VAConfigAttribValEncROI union.

  If ROI encoding is supported, the ROI information is passed to the driver
  using VAEncMiscParameterTypeROI.

https://bugzilla.gnome.org/show_bug.cgi?id=768248

Signed-off-by: Víctor Manuel Jáquez Leal <vjaquez@igalia.com>
2017-05-12 11:12:56 +02:00
common@48a5d85ebf Automatic update of common submodule 2017-04-24 20:30:30 +01:00
docs docs: document environment variables 2016-10-27 13:09:21 +02:00
gst Revert "vaapidecodebin: fix element's classification" 2017-05-04 11:49:33 +02:00
gst-libs libs: encoder/context: query region of interest support 2017-05-12 11:12:56 +02:00
m4 build: handle git ignore in m4 directory 2016-03-09 20:28:21 +01:00
tests test: elements: fix compilation flags 2017-04-25 12:58:44 +02:00
.gitmodules common: use https protocol for common submodule 2016-11-26 11:27:28 +00:00
AUTHORS AUTHORS: Update 2015-12-07 12:47:04 +02:00
autogen.sh use gst-common submodule 2016-02-03 20:03:47 +01:00
ChangeLog Release 1.12.0 2017-05-04 15:46:03 +03:00
configure.ac Back to development 2017-05-04 18:59:31 +03:00
COPYING.LIB Relicense gst-libs/ code to LGPL v2.1+. 2010-09-20 12:55:42 +02:00
git.mk build: update git.mk 2016-05-06 12:16:44 +02:00
gstreamer-vaapi.doap Release 1.12.0 2017-05-04 15:46:03 +03:00
Makefile.am meson: dist meson build files 2017-02-15 00:26:21 +00:00
meson.build Back to development 2017-05-04 18:59:31 +03:00
meson_options.txt vaapi: add meson build 2017-02-09 11:27:44 +01:00
NEWS Release 1.12.0 2017-05-04 15:46:03 +03:00
README README: fix "Sources" section 2017-03-14 16:07:08 +01:00

  gstreamer-vaapi
  VA-API support to GStreamer

  Copyright (C) 2010-2011 Splitted-Desktop Systems
  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+


Overview
--------

gstreamer-vaapi consists in a collection of VA-API based plugins for
GStreamer and helper libraries.

  * `vaapi<CODEC>dec' is used to decode JPEG, MPEG-2, MPEG-4:2, H.264
    AVC, H.264 MVC, VP8, VC-1, WMV3, HEVC videos to VA surfaces,
    depending on the actual value of <CODEC> and the underlying
    hardware capabilities.  This plugin is also able to implicitly
    download the decoded surface to raw YUV buffers.

  * `vaapi<CODEC>enc' is used to encode into MPEG-2, H.264 AVC, H.264
    MVC, JPEG, VP8, HEVC videos, depending on the actual value of
    <CODEC> (mpeg2, h264, etc.) and the hardware capabilities. By
    default, raw format bitstreams are generated, so the result may be
    piped to a muxer, e.g. qtmux for MP4 containers.

  * `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 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 0.38
  * JPEG, MPEG-2, MPEG-4, H.264 AVC, H.264 MVC, VP8, VC-1, HEVC and
    VP9 ad-hoc decoders
  * MPEG-2, H.264 AVC,H.264 MVC, JPEG, VP8 and HEVC ad-hoc encoders
  * OpenGL rendering through VA/GLX or GLX texture-from-pixmap + FBO
  * Support for EGL backend
  * 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 Reductio, Color
      Balance, Skin-Tone-Enhancement
    - Advanced deinterlacing: Motion-Adaptive, Motion-Compensated


Requirements
------------

Software requirements

  * GStreamer 1.9.x:
      libgstreamer1.0-dev (>= 1.9.x)
      libgstreamer-plugins-base1.0-dev (>= 1.9.x)
      libgstreamer-plugins-bad1.0-dev (>= 1.9.0)

  * 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 (>= 1.0.2)

Hardware requirements

  * Intel Eaglelake (G45)
  * Intel Ironlake, Sandybridge, Ivybridge, Haswell, Broadwell,
    Skylake, etc. (HD Graphics)
  * Intel BayTrail, Braswell
  * Intel Poulsbo (US15W)
  * Intel Medfield or Cedar Trail
  * Hardware supported by Mesa VA gallium state-tracker


Usage
-----

  VA elements are automatically plugged into GStreamer pipelines. So,
  using playbin 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 ! vaapidecodebin ! vaapisink fullscreen=true

  * Play a raw MPEG-2 interlaced stream
  $ gst-launch-1.0 -v filesrc location=/path/to/mpeg2.bits ! \
      mpegvideoparse ! vaapimpeg2dec ! 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 ! \
      vaapih264enc rate-control=cbr tune=high-compression ! \
      qtmux ! filesink location=/path/to/encoded_video.mp4


Sources
-------

  gstreamer-vaapi is Open Source software, so updates to this
  framework are really easy to get.

  Stable source code releases can be found at:
  <https://gstreamer.freedesktop.org/src/gstreamer-vaapi/>

  Git repository for work-in-progress changes is available at:
  <https://cgit.freedesktop.org/gstreamer/gstreamer-vaapi>


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

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