Converting AVI files w/burned subtitles: progress finishes immediately?

[CatchFiveBats]

Hello,
I have been burning a lot of softsubs (.srt format) into AVI files recently using ffmpegx with no issues, and today a problem came up.

My first attempt to convert this file went normally, but after conversion I realized that the aspect ratio of the original file was off (512x480 as opposed to 640x480 like the rest of the episodes in this series). I attempted to reconvert the old file using the 4:3 aspect ratio (which autoset to 512x384) with all the exact same settings as the first time, but the progress finished immediately and the created file was zero kb. I retried this several times (one time with the aspect ratio set to 640x480), always with the same results. I also tried encoding the file again without changing the aspect ratio, and it still converts fine.

Settings info:

-Original File-
This is what ffmpegx tells me when I click the "Info" button on the upper right (next to play).
VIDEO: [XVID] 512x480 16kbpp 29.970 fps 1215.9 kbps (148.4 kbyte/s)
audiocodec: framecopy (format=55 chans=2 rate=44100 bits=0 B/s=16000 sample-1)

Of note: all other episodes in the series show [DX50] as opposed to [XVID] in the above information (as well as some differences in fps and kbps and such, but I don't think that's really relevant).

-Created File-
XviD [.AVI] (mencoder), 1215.9 kbit/s, 512x384, subtitles position set to 95. All other settings are kept at default.

Also of note: I used the "DivX 3 [.AVI] (mencoder)" codec for one of the conversions and still got the same results.

Log file:

Encoding started on Fri Feb 2 10:45:16 EST 2007
FIXME:Hardenabling SSE and SSE2 without detection
MEncoder dev-CVS-060307-04:23-4.0.1 (C) 2000-2006 MPlayer Team
Mac OSX static build for ffmpegX
CPU: Intel (Family: 6, Stepping: 8)
CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2
success: format: 0 data: 0x0 - 0x1c624c06
AVI file format detected.
VIDEO: [XVID] 512x480 16bpp 29.970 fps 1215.9 kbps (148.4 kbyte/s)
[V] filefmt:3 fourcc:0x44495658 size:512x480 fps:29.97 ftime:=0.0334
================================================== ========================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->176400)
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
================================================== ========================
SUB: Detected subtitle file format: subviewer
SUB: Read 660 subtitles.
SUB: Adjusted 505 subtitle(s).
xvid: using library version 1.2.-127 (build xvid-1.2.0-dev)
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
Opening video filter: [scale w=512 h=384]
================================================== ========================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
================================================== ========================
MP3 audio selected
VDec: vo config request - 512 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.

Hopefully this is enough information to get my problem solved...

[terryj]

hate to tell you this, but you want to post this in the ffmpegx
forum.....

[CatchFiveBats]

hate to tell you this, but you want to post this in the ffmpegx
forum.....

Ah, thank you. I had just signed up and couldn't post anywhere else, so I just stuck this on the newbie forum. Apologies for that.