[mythtv] Re: Software AC3 decoding when watching TV
Marcus Metzler
mocm at mocm.de
Thu Dec 16 07:27:34 UTC 2004
>>>>> "Taylor" == Taylor Jacob <rtjacob at earthlink.net> writes:
>> Does it have to be replaced or can't we just record TS. That
>> would make many things easier. What is the problem with TS?
Taylor> I have done some thinking about this, and after some
Taylor> thought I agree that there is no reason why just recording
Taylor> a TS isn't the right thing to do..
Taylor> To make the pes requiring devices work ok a ts->pes
Taylor> transform would need to be done on the fly to the
Taylor> ringbuffer while its being served to the device.. This
Taylor> would also be mandatory for the pvr350 as far as I know..
Taylor> Recording ATSC AC3 will be broken without doing it this
Taylor> way.. Juha said he would have a MUCH easier time doing
Taylor> subtitles as well so I am completely sold.. Sorry if I
Taylor> shot from the hip earlier.. Do you have a quick patch that
Taylor> I could make to transform.c (since its your code) to make
Taylor> it dump an ATSC AC3 stream? None of ATSC channels ive
Taylor> watched have sound and I am pretty sure tranform just
Taylor> isn't putting them in the ringbuffer since its looking for
Taylor> a differnet header than PrivateStream..
It should work with ATSC, I tested it with some streams I got a while
ago. I have to see if there is a difference between the mythtv version
and the libdvb version though. I will have a look at it and get back
to you.
Taylor> The biggest issue right now is really time.. I want to get
Taylor> this code into myth-cvs as soon as I can and doing TS
Taylor> recording may not fit at first.. I have more than enough
Taylor> on my plate.. Its possible Jesper could do this, but I do
Taylor> not set his schedule.. I know both John and I have tons of
Taylor> work to do before this whole thing is ready..
I would like to help. I am not to much into the mechanics of mythtv
yet. So it might take a while to get started. If you have some
pointers on what I should start to get into it, please tell me.
I could change transform.c to make it fit better into mythtv and get
rid of the unneeded functions.
Marcus
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