[mythtv-commits] Ticket #2096: Mac OS X Plextor ConvertX USB Video Capture support

[MythTV]

#2096: Mac OS X Plextor ConvertX USB Video Capture support
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 Reporter:  awk at awkward.org  |        Owner:  ijr     
     Type:  patch            |       Status:  reopened
 Priority:  minor            |    Milestone:          
Component:  mythtv           |      Version:          
 Severity:  medium           |   Resolution:          
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Changes (by awk at awkward.org):

  * status:  closed => reopened
  * type:  task => patch
  * resolution:  invalid =>

Comment:

 In addition to the attached configure patch you need the tar archive of
 the patches and new files for libs/libmythtv required from :

 http://www.awkward.org/downloads/darwin-go7007.tar.gz

 This is quite a bit of new code - the patches to current source files are
 :

 NuppelVideoRecorder.cpp.diff
 cardutil.h.diff
 videodev2_myth.h.diff
 NuppelVideoRecorder.h.diff
 libmythtv.pro.diff
 videosource.cpp.diff
 cardutil.cpp.diff
 tv_rec.cpp.diff

 I can upload all these individually - but that seems overkill for trac,
 especially if I have to keep making changes.

 There are also a number of new files to support the hardware (including
 some firmware files from the original linux project that are copied to
 /usr/local/lib/mythtv/firmware)

 I've been using the patch for a while without any real problems, and I
 don't believe I've broken anything for Linux/V4L/GO7007 users, however
 it's possible that one of my ifdef's is misplaced.

 Some other notes on the patch - it's only been tested with the TV402
 device (with the tuner) it probably works with the 'non-tuner' version but
 it may well need some tweaks. It's feasible to make it work with other
 GO7007 based (non-Plextor) devices, but more work will probably be
 required (and I don't have anything else for testing).

 The implementation 'parallels' the V4L api's (reusing the same ioctls for
 example) - this isn't the cleanest approach but it does make the
 integration with myth simpler and 'more obvious'. In time I'd like to do
 away with that approach and move to something a little more
 straightforward and more 'C++' like. This code may also serve as a model
 for other people looking to integrate other hardware on the Mac for which
 V4L devices already exist.

 A final note for 'new Mac OS X Backend users' - you need to configure your
 viewing profiles for this device after you've added it to the list of
 devices on the backend. This stumped me for a bit until I realised that
 Linux is the same way !

-- 
Ticket URL: <http://svn.mythtv.org/trac/ticket/2096#comment:4>
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