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README: update for GStreamer >= 1.0.x and VPP features.

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Gwenole Beauchesne 2013-11-22 06:45:22 +01:00
parent c516311a1a
commit 370354e418
1 changed files with 10 additions and 5 deletions
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15
README
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@ -31,7 +31,7 @@ GStreamer and helper libraries.
surfaces to video/x-raw-yuv pixels.
* `vaapipostproc' is used to postprocess video/x-vaapi-surface
surfaces, for e.g. deinterlacing.
surfaces, for e.g. deinterlacing, denoising and sharpening.
* `vaapisink' is used to display video/x-vaapi-surface surfaces to
screen.
@ -87,17 +87,22 @@ Usage
-----
VA elements are automatically plugged into GStreamer pipelines. So,
using playbin2 should work as is. However, here are a few alternate
pipelines constructed manually.
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-0.10 -v filesrc location=/path/to/mpeg2.bits ! \
$ 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
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