Displaying 7 results from an estimated 7 matches for "aofil".
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aofile
2004 Dec 03
3
trying to encode from dvd using mplayer
Hello. I'm trying to encode an Ogg Theora file from an unencrypted
dvd using mplayer and encoder_example.
I set up named pipes stream.wav and stream.yuv.
I then run:
mplayer -ao pcm -aofile stream.wav -vo null /dev/dvd &
mplayer -vo yuv4mpeg -ao null -nosound /dev/dvd &
encoder_example -v1 -a 1 stream.wav stream.yuv > lec1.ogg
but I get the following error:
File stream.wav is 16 bit 2 channel 48000 Hz RIFF WAV audio.
File stream.yuv is 720x480 29.97 fps YUV12 video.
Comp...
2002 Sep 27
2
Using Theora Micro-HOWTO
...t yet also handle the audio
from a fifo, though this may be possible in the (near?) future. In the
meantime, the simplest workaround is to dump the audio, separately, to a
standard .wav file (which can be rather large, but still MUCH smaller than
the video dump file would be...):
mplayer -ao pcm -aofile stream.wav -vo null file_to_be_encoded.avi
Finally, to encode the Ogg Theora file from the original:
mplayer -ao null -nosound -vo yuv4mpeg file_to_be_encoded.avi &
(and then - I do this in a separate terminal window, but as far as I know
it can be done in the same window, albeit messily as...
2004 Sep 12
1
using theora
Having built libtheora-1.0alpha3, I tried it out on a 46 second long,
161 MByte raw dv format video clip.
First, I copied these lines from ogg-theora-microhowto.html
<snip>
mplayer -ao pcm -aofile stream.wav -vo null file_to_be_encoded.avi &
mplayer -vo yuv4mpeg -ao null -nosound file_to_be_encoded.avi &
encoder_example -v 1 -a 1 stream.wav stream.yuv > theora_file.ogg
</snip>
into a file named "encode", substituted "file_to_be_encoded" and "theor...
2002 Sep 30
0
Bug(?) in the example encoder (details re: audio from fifo)
...be hanging after determining
the audio stream type but before finishing opening the video stream.
The behavior appears different depending on the type of source file,
for some bizarre reason...
The relevant command lines I'm using are:
(in one terminal window):
mplayer -vo yuv4mpeg -ao pcm -aofile stream.wav -aop list=resample:fout=44100
-vop scale=640:480 -sws 2 test.mpg
(in another):
strace encoder_example -a 1 -v 1 stream.wav stream.yuv > movie.ogg 2>enc.err
In this case, enc.err shows that it's unable(?) to open the stream:
-------------------------------------------------...
2004 Jun 30
12
New addition to FAQ
Greetings,
I was on IRC about 7 hours ago and suggested that the FAQ be updated slightly.
Rather than sit on my ass and complain I figured I'd ask a few people, and see
if the idea was worth the time.
Here's what Ive started with:
http://www.dimension.net.nz/theora.html
I'll be adding to it over the next 24 hours - mostly in the area of Playback
and Encoding.
Just threw it together
2002 Oct 02
2
Audio from fifo
...olution I can think of would be to run 2 mplayer
processes, one for video and one for audio.
Based on your (emaillist@dogphilosophy.net) example, something like this:
(in one terminal window):
mplayer -vo yuv4mpeg -ao null -vop scale=640:480 -sws 2 test.mpg
(in another):
mplayer -vo null -ao pcm -aofile stream.wav -aop list=resample:fout=44100
(in another):
strace encoder_example -a 1 -v 1 stream.wav stream.yuv > movie.ogg 2>enc.err
<p>That's a bit wasteful, but I think it will work.
I haven't tried it.
--
Caspian Maclean
--- >8 ----
List archives: http://www.xiph.org...
2005 Mar 05
2
A/V sync strategies
I tried to encode some video from a DVD with encoder_example and
ffmpeg2theora, and it looked great, except that with both encoders the
A/V sync would drift noticeably after about 10 minutes, and by the end
of a two hour movie it would be a couple seconds off. So instead of just
whining about this and waiting for someone else to fix it, I decided to
try to learn about what's causing the