[macintologist]

I'm having a problem with MacDivxCreator and FFMpegX (they both use the console to encode so they are the same in the context of this problem). When I click encode, the console launches and then gives me some crap that looks like this:

No accelerated IMDCT transform found

Seems that stream 0 comes from film source: 29.97->23.98
Input #0, mpeg, from '/Users/steve/Desktop/TITLE01-ANGLE1.VOB':
Stream #0.0: Video: mpegvideo, 720x480, 29.97 fps, q=0-0, 9800 kb/s
Stream #0.1: Video: , q=0-0
Stream #0.2: Audio: ac3, 48000 Hz, 5:1, 448 kb/s
Output #0, avi, to '/Users/steve/Desktop//dvdmovie.avi':
Stream #0.0: Video: mpeg4, 640x352, 23.98 fps, q=4-6, 734 kb/s
Stream #0.1: Audio: mp3, 44100 Hz, stereo, 112 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
Unsupported codec for input stream #0.1

How can I fix this problem? It does the exact same thing with all the Divx encoders and each codec supported. And why do they have to go to the console in the first place? Can't they encode divx just like any other program would encode mp3s? (iTunes doesn't go to the console to encode...)

-Steve

[lucylawless]

it means your VOB has multiple video tracks, maybe multiple angle scenes or something, but since the first video track is of a different format, it's probably something else (the first video stream is of an incompatible codec). You can try to rederive the VOB from wherever you got it, this time specifying only the largest video stream, but that might not work. I believe in ffmpegX, at least some verisons, you can dump the command line entry and edit it before executing it. You could look for the -map flag and specify 0.0:0.0 and 0.2:0.1. Or you could use bbDemux to extract the video and audio tracks from the VOB and encode them seperately in MDC or ffmpegX and then join the audio and video with aviTool from http://mediapipe.sf.net. In fact, while you're there you can download MediaPipe, which will let you encode divx without seeing the commandline part (all mac divx encoders are based on the linux/unix program, ffmpeg, which is a command-line program. The reason mp3 encoders are all better is because mp3 is a documented standard, and divx is a proprietary microsoft hack that has to be reverse engineered)