[linux-dvb] HVR-1800 checkin

Barry Quiel quielb at ecst.csuchico.edu
Thu Jan 17 23:48:42 CET 2008

mkrufky at linuxtv.org wrote:
> Barry Quiel wrote:
>> Michael Krufky wrote:
>>> On Jan 14, 2008 8:40 PM, Barry Quiel <quielb at ecst.csuchico.edu> wrote:
>>>> It looks like there was a checkin a few days ago that added some 
>>>> support
>>>> for the HVR-1800 NTSC tuner.  Excuse the stupid question but what is
>>>> basic preview NTSC support?
>>> by "basic preview NTSC support", we mean, "standard raw framegrabber"
>>> support -- as opposed to mpeg encoder support, which will be added
>>> soon.
>>> You can try out the mpeg encoder support by using the tree:
>>> http://linuxtv.org/hg/~stoth/cx23885-video/
>>> ...but I warn you -- this is a development repository that hasnt yet
>>> been merged into the master repository.....  If you hit any bugs,
>>> please report them.  The repository will most probably be deleted when
>>> it gets merged into master.
>>> Good Luck,
>>> Mike Krufky
>> I'd like to help test the analog portion of this card, but I have one 
>> concern.  Are the code changes from the current trunk merged into this 
>> branch?  I really don't want to lose the ATSC functionality.  I'm not 
>> asking for a guarantee but a "I'm pretty sure ATSC should be 
>> unaffected" will do.
> Barry,
> #1 Please don't top quote.
> #2 Please don't drop cc's to a mailing list if that is where the mail 
> originated, unless you have a question that is private in nature -- if 
> you're asking a question that somebody else might also want the answer 
> to, then you are dooming me to write more emails than are necessary...
> (cc added back to linux-dvb)
> Anyway, regardless of what code you're testing, so long as you keep the 
> tree that worked for you last time somewhere on the side, you can always 
> revert back to that tree.
> Analog video support added for the HVR1800 does _NOT_ break Digital 
> video support.  You can use digital and analog simultaneously.
> Be advised, however, that the cx23885 driver currently does not support 
> DMA audio for analog preview, but audio does work for mpeg encoder mode.
> However, don't use the master branch today -- the build system is broken 
> right now.  Instead, use:
> http://linuxtv.org/hg/~mkrufky/build-fix
> Please send future correspondence to the mailing list.  you may feel 
> free to cc me, but remember the mailing list is most important.
> Regards,
> Mike

First off let me apologize for the poor list etiquette.  I am by no 
means new to mailing lists ( just this one ), and I know better.  I was 
just in a hurry to send off the message and just simply wasn't paying 

My questions about functionality of the branch were directed towards the 
http://linuxtv.org/hg/~stoth/cx23885-video branch.  As far as I can tell 
the code that enables mpeg encoder support has not been merged into 
trunk.  The only commits I've seen for trunk is the preview support, 
which from my understanding enables basic framebuffer functionality.

Is there a commit that I'm not seeing for trunk that enables the mpeg 
encoding or is that still only in the ~stoth/cx23885-video banch?

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