ffmpegx occasionally creates 0kb files instead of encoding properly

digitalgeist · Member Joined: 09 Apr 2005 Location: USA

(I noticed I originally posted this in the wrong forum, so after deleting the original post, I'm reposting my query here)

I've run into this problem with a few versions of ffmpegx and given up on them before, but I just thought I'd ask here for the record:

Occasionally (and less often with 0.0.9x) when I'm converting .AVI or .VOB files to something else (it doesn't seem to matter which format), ffmpegx cops out and creates a file that is 0kb immediately at the start of encoding. Is there a fix for this? Am I just missing something that would fix this problem?

I don't think it would be my setup, as this has happened with different versions of the app on different computers (both intel and ppc).

Thanks for any help problem-solving!
_________________
Thanks.

Case · Explorer Joined: 04 Feb 2004 Location: Middle Earth

The Log may hold clues to why a conversion failed. You may access the Log by clicking the blue "i" in the ffmpegX Progress window.
Based on any error found in there, fellow users may be able to suggest a fix.

digitalgeist · Member Joined: 09 Apr 2005 Location: USA

Ah, ok - I was unaware of this function. I'll try it again and post what I come up with. Thanks a lot for your help!
_________________
Thanks.

fernblatt · Member Joined: 17 Sep 2007 Location: United States

I have a similar problem, but the progress window indicates it's been converted. Now I know where to look. With me it happens nearly *every* time I convert to a .mov file.

Thanks

Case · Explorer Joined: 04 Feb 2004 Location: Middle Earth

evl · Member Joined: 23 Oct 2007 Location: Sweden

Case · Explorer Joined: 04 Feb 2004 Location: Middle Earth

Your source file has the audio stream (#0.0) mapped before the video stream (#0.1). This is reverse from what the ffmpeg engine expects. You may fix this "Codec type mismatch for mapping"-error by indicating that the streams are reversed. To do so, check the "Invert mapping" checkbox in the audio tab.

dpayette · Member Joined: 19 Jun 2008 Location: United States

Thanks for the answer - totally fixed my problem.

kyokoy · Member Joined: 28 Jul 2009 Location: Canada

I also have creating zeroK file problem when trying to convert mov file to flv.

Here is the log. Any suggestion will be appreceiated.

FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
Mac OSX universal build for ffmpegX
libavutil version: 49.0.0
libavcodec version: 51.9.0
libavformat version: 50.4.0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x5597b8]negative ctts, ignoring
Tue Jul 28 18:20:12 EDT 2009
that stream 1 comes from film source: 2997.00 (2997/1) -> 29.97 (30000/1001)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Volumes/LaCie160-2/STABIAE/DemoOUTPUT/Stabiae_Demo99.mov':
Duration: 00:10:58.3, start: 0.000000, bitrate: 1261 kb/s
Stream #0.0(eng): Audio: aac, 48000 Hz, stereo
Stream #0.1(eng), 29.97 fps(r): Video: h264, yuv420p, 640x480
Codec type mismatch for mapping #0.0 -> #0.0

Ai Haibara · Posted: Jul 28, 2009 18:03

Have you tried the solution Case mentioned, above?