Xvid conversion

[rbautch]

Never converted an Xvid before, and some strange things happening. I extract the audio to wav using Virtualdub, no problems. When I frameserve the video to Tmpgenc, it creates a m2v with 3 times as many frames as the original avi. The extra frames are just a duplicate of the last frame of the actual video. Tried encoding directly from Tmpgenc without frameserving, and it does the same. I'm not changing framerate, and I downloaded the latest Xvid codec. Any ideas?

[celtic_druid]

Try frameserving with AVISynth, using the trim() function if you have to.

[reboot]

What's the framerate of the original? What's your desired output framerate (PAL, NTSC)?
You might have better luck letting vdub re-encode with no compression first (if you have the room), or divx at it's highest bitrate.

[rbautch]

Original is 25fps and I'm keeping it there for an NTSC DVD. I've got plenty of hard drive space. Would saving as an AVI first make a difference over frameserving?

[mats.hogberg]

Original is 25fps and I'm keeping it there for an NTSC DVD

PAL is 25 fps. Not NTSC. Not that it should matter in this case - sounds more like a VBR audio issue... Are you sure you have a true WAV (not original (mp3?) audio in a wav wrapper, like you get if you don't set audio to full processing, no compression)?

/Mats

[rbautch]

I thought 25fps was also NTSC film, and I had planned to add pulldown flags so my player would play at 29.9fps. Audio on the original avi was VBR mp3. I may have extracted it incorrectly, but I don't think it's affecting the video, is it?

[rbautch]

Nevermind. I forgot it's 23.9fps that's NTSC film. Should be banished to the Newbie forum for that. I'm off to read up on PAL-NTSC conversion. Let me know if you know of a good guide using Vdub and Tmpgenc.

[mats.hogberg]

I don't think it's affecting the video, is it?

Yes, indeed it does, when encoding with TMPGEnc, and results in exactly the symptoms you describe.
If you have a true <edit>WAV</edit>, you should be looking at a WAV at about 1 GB for a 1.5 hrs movie.

/Mats

[celtic_druid]

If you frameserve with AVISynth then the audio is decoded on the fly. AVISynth does the decoding and TMPGEnc just gets raw PCM. You can even try the frame rate conversion with AVISynth if you want by say using assumefps(23.976) and timestreching the audio to match.