ffmpeg do not convert the ac3-stream

[Doc Boese]

That's what I've done:

1.) I ripped a dvd into the elementary streams. I got an m2v-file and a ac3-file

2.) I put the m2v-file into the input and added the audio-stream into the add-window (I don't know how to call it else).

3.) I used the presettings from major to built an svcd

4.) The video-file is no problem. The picture-quality is cool. But in that moment, the audio-file should be converted I get an error-message like this ...

YUV4MPEG stream header written. FPS is 25
++ WARN: [mpeg2enc] Generating dummy SVCD scan-data offsets to be filled in by "vcdimager"
++ WARN: [mpeg2enc] If you're not using vcdimager you may wish to turn this off using -d
frame=219176 q= 0 size=88767778kB time=8767.0 bitrate=82945.4kbits/s
Input #0, mpegvideo, from '/Volumes/MYHARDDISK/H/H/H.M2V':
Stream #0.0: Video: mpegvideo, 720x576, 25.00 fps, 7500 kb/s
No audio or video streams available
INFO: [mplex] mplex version 2.2.1 ($Date: 2002/04/20 19:08:30 $)
INFO: [mplex] File /Users/MYNAME/Desktop/P/P.m2v looks like an MPEG Video stream.
**ERROR: [mplex] Unable to open file /Users/MYNAME/Desktop/P/P.mp2 for reading.
Encoding complete!

So I need a little advice
Thanks for helping me

[AntnyMD]

You'll need a multiplexed (audio and video together) to achieve the results you want from ffmpegX. When you rip, rip as PROGRAM STREAM, not elemetary stream ... this way you'll end up with a .VOB file that contains your audio and video ... and your output will contain audio and video (not just video).

[Doc Boese]

Okay, that's what I've done before I tried this "experiment". Thanks for this hint.

Is it possible to use the m2v I already have and to mux it with a seperated converted audio-file or do I have to start over with a newly ripped programm stream?

I tried to convert the audio-file from ac3 to mpeg 1 layer 2 with the Missing Mpeg Tools, but this gui doesn't work on my mac - the devil knows why ...

So I tried the ffmpeg-tool to convert the ac3-stream but only with an error-result.

[AntnyMD]

Is your end result to be SVCD, or DVD? I use ffmpegX to create DVD, so I must end up with elementary streams. As such, I rip as elementary streams, use the .M2V file as my source, and ignore the mplex error when the encoding is finished.

If your goal is SVCD and you no longer have the original DVD from which to re-rip as Program Stream, I think MpegMissingTools will multiplex an .AC3 onto an .M2V, but with a bunch of errors. It may still be a useful file for ffmpegX, however.