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Eric Nelson authored
Qt-embedded can be used on multiple screens by using environment variables QWS_DISPLAY, QWS_MOUSE_PROTO, et cetera. The gstreamer element mfw_v4lsink used to accelerate media playback on i.MX devices can also be pointed at different displays through the 'device' property, but the current acceleration patch doesn't have a mechanism for setting the property, and always uses the compiled-in default. This patch allows userspace startup code to override the default through the use of the 'v4lsinkdev' environment variable. Please refer to the Qt4-embedded documentation for proper usage of the QWS_x environment variables and the Freescale Multimedia documentation for descriptions of the various gstreamer elements. A sequence of this for a secondary display might be this: export QWS_DISPLAY=linuxfb:/dev/fb2:1 export v4lsinkdev=/dev/video19 my-qt-app -qws Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
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