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v4l1 compat wrapper version 0.2

DISCUSSION Hans de Goede 1 participant 1 message Jun 6, 2008 Media (V4L/DVB)

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Hi All,

Changes:
* When mmap gets passed an fd of -1 (anonymous map) don't look for it in our list of managed fds, as we use -1 to mark unused entries (fixes ekiga crashing). Also check for an fd of -1 in the other calls we intercept.
* In close() start with removing the fd from our list of managed fds, this must be done first, because as soon as we've done the actual close syscall, the fd maybe returned by an open in another thread and we don't want to intercept calls to this new fd.
* Make unknown v4l1 palette types a normal level log messages instead of an error.
* When an applicaiton changes the width / height through the CMCAPTURE ioctl remember the new width and height.
* If the devices initial v4l2 pixformat has no corresponding v4l1 palette, try setting a format which does (and which we emulate when necessary) so that applicactions which just query the current format (GPICT) and then take whatever they get will work (partially fixes camorama)
* Implement our own SWIN instead of using kernel compat layer, for more flexibility and better error checking

If you want to test please use this version, the previous version had a nasty bug in the mmap wrapping causing all kinda problems (brown paper bag bug).

New version attached.

Regards,

Hans

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