discuss ogg theora techniques

[zoobie]

I like to discuss stuff before wasting time...

wmp definitely dislikes my ogg theora I've created with mediacoder even though I've the windows for ogg codecs installed. Even VLC couldn't play it.

However, I was able to simply convert a dv-avi to ogg with ffmpg2theora and VLC liked that.

What I'd like to do now is, since the only thing working on my box I can clearly see is ffmpg2theora, have some control over it with more parameters.

Being a command line tool, I need to resize, kbps, etc...or I'll be stuck resizing and goofing with the avi before it's converted

Any thoughts on this obscure format out there?

[zoobie]

I think I'm looking for this...

ffmpeg2theora.exe -o theora_test.ogg --croptop 82 --cropbottom 78 --cropleft 2 --cropright 2 -x 640 -y 256 -v 6 "c:\path to\vts_02_5.vob"main

options:
--output,-o: alternative output
--format,-f: specify input format
--width,-x: scale to given size
--height,-y: scale to given size
--crop[top|bottom|left|right]: crop input before resizing
--deinterlace,-d [off|on]: en/disable deinterlace (enabled by default right now)
--videoquality,-v [0 to 10]: encoding quality for video (variable bitrate/1pass - quality based/in my test -v 6 resulted in ~750kbps)
--audioquality,-a [-1 to 10]: encoding quality for audio
--samplerate,-H: set output samplerate in Hz
--nosound: disable the sound from input
--debug: output some more information during encoding

executed as a .bat
it's probably in the help file

anyone use vdub for this?
any tips?
Thx

[Ai Haibara]

Shouldn't that be .ogm, though? .ogg is for audio.

I don't know about VDub handling ogg/ogm; VDubMod does handle .ogm videos, but I'm not sure about .ogg.

[45tripp]

I think I'm looking for this...

probably.
yeah a bat. why not.
but, Super has ffmpeg2theora..
might be useful. (limited i guess)

anyone use vdub for this?
any tips?

you can't.
mediacoder probably not working due to a bug with vorbis with latest lavf, my guess.
so no point in suggesting avidemux.

Shouldn't that be .ogm, though? .ogg is for audio.

no it's ogg.
ogm is actually a Tobias hack.


gl

[zoobie]

I'm using ffmpeg2theora in XP and getting .ogv
yet another container?
I read an older version of mediacoder may be better...
Super "native" support

[Ai Haibara]

no it's ogg.
ogm is actually a Tobias hack.

Ugh. Well, only because the distinction makes it a little easier for me. I can set aside different players for the .ogm and .ogg extensions. Otherwise, it's a little like .mp4 or .asf, especially when I have Winamp or Media Player wanting to seize control of those extensions.

I've always just seen .ogm videos, though. Never one with the .ogg extension (but note that I'm not saying that means they're not out there.)

[zoobie]

This helped put it in perspective
http://en.wikipedia.org/wiki/Ogg_theora
with this on the same page...

Previous evaluations have found VP3 and Theora substantially lacking compared to contemporary video codecs.

...and little support for windows

next up for me...VLC

[zoobie]

the only type that plays correctly in my wmp with the codecs is .ogm
VLC plays this and all the other containers well
ogg is very strange, indeed, since it doesn't like the most popular OS
I should get another linux flavor right about now

[Ai Haibara]

I've never had any problems playing .ogg/.ogms under Windows - but then, I wouldn't use WMP to play them, anyway.

[zoobie]

you really like to play those, eh?
ever make one?

[Ai Haibara]

you really like to play those, eh?

Well, I wouldn't say that. I rarely encounter them, though.

ever make one?

Once or twice, using VDubMod. I guess you can say I've taken them apart more than I've put one together.

[zoobie]

I've made several that play fine in VLC...
WMP doesn't like them even with the illiminable codecs
I'm mess with VDubMod for a bit