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Re: Fedorability of dvbcut ?



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Matt Domsch schrieb:
> On Mon, Oct 29, 2007 at 12:07:01AM +1100, David Timms wrote:
>> I'm keen to repackage dvbcut for Fedora.
>> http://dvbcut.sourceforge.net/installation.html
>> The application can be used to trim up a mpeg2 transport stream for 
>> example recorded from a DVB tuner card, and output in mpeg2 program 
>> stream format.
>>
>> As packaged in packman, it warns:
>> - qt3 is needed by dvbcut-0.5.4-0.pm.0.i586
>> - libffmpeg0 is needed by dvbcut-0.5.4-0.pm.0.i586
>> It can also use mplayer, and finds this through name within your path, 
>> ie it is not actually required for the program to run.
>> With ffmpeg and mplayer installed, a rpm -Uvh --nodeps allows it to run 
>> fine.
>>
>> It's main function is the conversion from transport stream to program 
>> stream of given selections, however, it does recode frames at the start 
>> and end of each clip.
>>
>> So given the linking {I think} of ffmpeg, and the need for easiest use 
>> of having mplayer installed, am I correct in assuming this will be no go 
>> in FedoraPC ?
> 
> ffmpeg is patent-encumbered, thus no-go in Fedora.  If your
> application can use other codecs that are free and are included in
> Fedora (e.g. Ogg Theora), but may also use ffmpeg if present, then
> it could fit.
> 

As dvb is probably always mpeg2 there won't be a free codec, but I think
 it should not depend on a codec nor decode-library as videoplayers
don't do that too. At least it could work with 3rd party stuff.
If that does not fit fedoras needs (if distributed software must be
usable) you would have to try 3rd party repos.

>> And if that's the case, how does the included kernel module for 
>> controlling / receiving mpeg2 transport streams from my DVB card fit 
>> with Fedora ?
> 
> The hardware manufacturer will have a patent license that allows them
> to use mpeg2.  That same patent license most likely does not extend to you
> as an end user for use outside of their hardware.
> 

As far as I know there is no mpeg2 decoding done in a dvb driver (it
will probably come from videolinux rather then from the hw-mf.
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