[mythtv] RE: Re: Musings On Standard File Formats
NYCE, GREG
greg.nyce at aei.com
Mon Apr 21 14:43:39 EDT 2003
What about MPEG4IP, at mpeg4ip.sourceforge.net?
I have no programming experience, and cannot judge whether this has any
relevance to MythTV at all, but I've used this package over the last few
days to build some MPEG-4 files for streaming over Apple's Darwin Streaming
Server (plus hinting, etc, and FFMPEG as well). They have an MP4 player
(command line and GTK+ version), as well as mp4live, which is supposed to
capture/stream from a /dev/video feed (I have not tried this).
Regards,
Greg
>Date: Mon, 21 Apr 2003 11:51:45 -0400
>From: Matt Zimmerman <mdz at debian.org>
>To: Development of mythtv <mythtv-dev at snowman.net>
>Subject: Re: [mythtv] Musings On Standard File Formats
>Message: 19
>
On Mon, Apr 21, 2003 at 12:47:22AM -0400, James Knight wrote:
>> The MPEG-4 standard container format (aka Quicktime container) should
>> do everything you want to do. I'm no expert on the NuppelVideo format,
>> so I'm not sure exactly what features you need, but the QT container
>> is
>> *extremely* extensible, and seems to have a lot of built-in features
>> already like text tracks for subtitles, etc. Since it's part of the
MPEG-4
>> standard, support for it should not be a problem.
>I'm not familiar with it either, though apparently there are technical
specifications >>available on the web, e.g.:
>
>http://developer.apple.com/techpubs/quicktime/qtdevdocs/QTFF/qtff.html
>
>I am unaware of any open source libraries for writing these files, so using
this format would >involve writing a significant amount of new code, which
would not add significant value to >MythTV itself.>
>
>> I don't see much advantage in changing containers at this point in
>> time (seems like a lot of work for not too much gain), but if a change
>> *were* to happen, I think it'd make the most sense to switch to the
>> standard MPEG-4 container rather than some half-baked container like
>> OGG or something really crappy like AVI.
>I wouldn't consider Ogg to be half-baked at all, only incomplete where
video is concerned. >For audio, it is the best thing going.
--
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greg.nyce at aei.com
970-407-6948
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