[vdr] How To use DeviceStillPicture ?
md001 at gmx.de
Sun Jan 6 14:13:51 CET 2008
I have seen that plugins use this in a different way.
For example in this order:
So the next action to display a new Stillimage would start with DevicePlay
Others call neither Freeze nor Play. The dvd-Plugin calls DeviceClear and
DevicePlay before DeviceStillPicture.
I remember that Klaus once stated that DeviceStillPicture could be seen as a
trickmode, so that always a Play has to follow to resume from trickmode. But
is it necessary to Freeze the Stillpicture before?
And I wonder: How should a device plugin handle the StillPicture function? Is
it necessary that StillPicture also calls a Clear() to clear the internal
decoder buffers? It looks like that vdr is not doing this in dvbdevice.c,
although I am not sure if the av7110 ioctl VIDEO_STILLPICTURE does
internally clear the buffers.
I noticed problems when both plugins (that one that uses DeviceStillPicture
and the device plugin) do a Clear() at the same time.
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