Ffmpegx suddenly stopped converting

[jamiegrind]

I've used ffmpegx a couple of times to covert VIDEO_TS files and VOB files but for some reason when I hit the encode button now it converts the file in litterally less than a second and the file it creates doesn't play as its a blank file. I have no idea what happened as I didn't change any settings. Please help...

[Case]

- Converting from, or to VIDEO_TS files and VOB files, to or from what format?
- Usually, the process log () holds some clues to what went wrong.

[jamiegrind]

converting from VIDEO_TS and VOB to ANY format (mpeg, avi etc)

the info log reads this:

Encoding started on Tue Jan 24 18:09:00 GMT 2006
MEncoder dev-CVS-051126-18:35-3.3 (C) 2000-2005 MPlayer Team
Mac OSX static build for ffmpegX
AltiVec found
CPU: PowerPC
libdvdread: Couldn't find device name.
Reading disc structure, please wait...
There are 2 titles on this DVD.
There are 1 chapters in this DVD title.
There are 1 angles in this DVD title.
DVD successfully opened.
success: format: 0 data: 0x0 - 0x1800
MPEG-PS file format detected.
MPEG: No audio stream found -> no sound.
VIDEO: MPEG2 720x480 (aspect 2) 29.970 fps 9000.0 kbps (1125.0 kbyte/s)
[V] filefmt:2 fourcc:0x10000002 size:720x480 fps:29.97 ftime:=0.0334
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
Opening video filter: [scale w=640 h=352]
================================================== ========================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
The selected video_out device is incompatible with this codec.
Also try adding the scale filter, e.g. -vf spp,scale instead of -vf spp.
VDec: vo config request - 720 x 480 (preferred colorspace: Mpeg PES)
VDecoder init failed
Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder libmpeg2-v0.4.0b
Selected video codec: [mpeg12] vfm: libmpeg2 (MPEG-1 or 2 (libmpeg2))
================================================== ========================
Forcing output fourcc to 58564944 [XVID]
VDec: vo config request - 720 x 480 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
SwScaler: FAST_BILINEAR scaler, from Planar YV12 to Planar YV12 using AltiVec
videocodec: libavcodec (640x352 fourcc=58564944 [XVID])
Flushing video frames
Writing AVI index...
Fixing AVI header...
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
Video stream: nan kbit/s (-2147483648 B/s) size: 0 bytes 0.000 secs 1 frames
Encoding completed on Tue Jan 24 18:09:01 GMT 2006

[Case]

There are 2 titles on this DVD.

Your VIDEO_TS folder has two DVD titles. Possibly the second is the one you want converted, but the first one gets tried unsuccesfully. Maybe the first title is a 1-frame title like a menu?

MPEG: No audio stream found -> no sound.
...
Video stream: nan kbit/s (-2147483648 B/s) size: 0 bytes 0.000 secs 1 frames

No sound and 1 frame seems to confirm that the wrong part of your source material gets processed here.

I would suggest to try MTR to get a (one) title-only extraction to feed to ffmpegX.