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Diffstat (limited to 'Software/Beignet')
| -rw-r--r-- | Software/Beignet/howto/libva-buffer-sharing-howto.mdwn | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Software/Beignet/howto/libva-buffer-sharing-howto.mdwn b/Software/Beignet/howto/libva-buffer-sharing-howto.mdwn index fe64d73a..0ee9cf31 100644 --- a/Software/Beignet/howto/libva-buffer-sharing-howto.mdwn +++ b/Software/Beignet/howto/libva-buffer-sharing-howto.mdwn @@ -48,20 +48,28 @@ Then create corresponding cl image objects from them. After using ocl to do a mi post-processing on this source surface, target VASurface is shown on screen by default. - Add option -DBUILD_EXAMPLES=ON to enable building examples when running cmake, such as: + `> mkdir build` + `> cd build` + `> cmake -DBUILD_EXAMPLES=ON ../` - Build source code: + `> make` - Run: + `> cd examples` + `> . ../utests/setenv.sh` + `> ./example-libva_buffer_sharing` In addition, you can choose to save the result as a nv12 file. You can use gst-launch-1.0 to see the result. Just install gstreamer1.0-plugins-base, gstreamer1.0-plugins-bad and gstreamer1.0-x by apt on Ubuntu. Then running the following command: + `> gst-launch-1.0 filesrc location=file_name ! videoparse format=nv12 width=xxx height=xxx \ ! imagefreeze ! videoconvert ! video/x-raw, format=BGRx ! ximagesink` |