[mythtv] Adding support for external ffmpeg-mt library

[Matthew Grant]

Janne,

Thanks!  i am getting my system moved to svn-trunk

On Sun, Jul 5, 2009 at 11:34 AM, Janne Grunau<janne-mythtv at grunau.be> wrote:
> Hej,
>
>> I will first do proof of concept against MythTV 0.21-fixes so that any
>> problems with the ffmpeg-mt libraries are obvious and easier to
>> resolve.
>
> this is much harder since -fixes has a much older libavcodec snapshot.
>
>> Second stage is to get this working in svn-trunk.  This is will be the
>> supported code  for the use of ffmpeg-mt.
>
> I'm preparing right now the next ffmpeg sync. current patch is
> http://www.grunau.be/mythtv_20788_ffmpeg_sync_19327.patch.bz2
>
> From there it's probably easy to patch the ffmpeg-mt changes on top of
> it. I'll try that next week.
>
>> PS: Both the UI fixup push and this are for moving svn-trunk forward
>> so that they are usable.
>
> trunk is pretty useable for me.
>
>> There are a lot of MythTV users in Norway
>> and NZ who want to use DVB-T whose needs are not being supported by
>> the current MythTV development community.
>
> That's not how open source development works. Developer support that
> they need and their time allows. I guess the biggest problem is missing
> LATM support. That is still not in ffmpeg proper and it's even unclear
> how to proceed there.

LATM is patched against current trunk ffmpeg and 0.21-fixes.  Jean
Yves Avenard made those, and the 0.21 patch is what I am using right
now.  There is a LATM code file, and a single patch to tie it into the
processing.  From my glance at it, it looks quite clean and easy to
do.  This will be the first thing I get going on trunk.

> And for decoding of HD H.264 streams ffmpeg-mt is not the only possible
> solution.

Wish my dual core AMD64 could run a recent Nvidia board - its only
AGP, and the cards that support VGPAU are all PCI/e Nvidia boards, and
my PCI slot has my Hauppauge HVR4000 board in it...

My wife is using the system quite often to watch DVDs and TV as
reception is better than Analogue TV ?-)
I need to make this work with little down time!  HD720p works without
too much stuttering on one 2.2GHz core.

Thanks Janne!

Matthew
> Janne
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