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The FlowVR Render distribution includes support for video playing. It relies on the MPlayer software modified to make it a FlowVR Render viewer. This viewer can be used for example to display movies on a display wall.
The Mplayer renderer relies ona patched version of Mplayer. It is automatically installed when compiling the FlowVR Suite (as long as all dependencies are satisfied): mplayer is downloaded from the web, patched and compiled.
The compilation automatically puts the MPlayer files in the modules/mplayer directory and places the XML description files in modules/desc.
An example using MPlayer is given in the examples/mplayer directory.
You first need to modify the examples/mplayer/net/mplayer.mml.xml file to put a correct video file name in the movieFileName template. Note the use of a video filter (-vf pp=fd) for video deinterlacing. This deinterlacing filter is required for MPlayer to work, but you can chose any other deinterlacing filter you may prefer (-vf pp=lb seems best if the video is not interlaced). You may also add in the args template any parameter you want to pass to MPlayer (such as -nosound if you do not want sound decoding).
Compiling the example is simply done by executing:
Executing the example is done by executing (a flowvr deamon must be running of course):
To make MPlayer a FlowVR Render viewer, we added a new video output to MPlayer. This video output driver simply retrieves at each frame a planar YUV image and sends the 3 component images as 3 textures. A dedicated shader is then used to render those textures into a quad taking care of the conversion between YUV and RGB.