VirtualDub

[Gi-Ma-Mi]

ok, i'm using VirtualDub to encode an avi file (hardsubbing it)
but whenever i click Save avi as, it said something like Statsfile not found! and then Cannot start video compression: The operation is not supported. (error code -1), this only happen lately and only happen when i compress the Video file and i notice something weird too: i just realized that out of the blue, there are 2 Xvid MPEG-4 Codec When i chose Video->Compression, for the first Xvid MPEG, on the right, it said:

Video codec information:
Delta frames_______No
FOURCC code______'xvid'
Driver name_______xvidvfw.dll
Format restrictions:
No known restrictions.

When i chose Video->Compression, for the first Xvid MPEG, on the right, it said:

Video codec information:
Delta frames_______No
FOURCC code______'yv12'
Driver name_______xvidvfw.dll
Format restrictions:
No known restrictions.

i only saw one Xvid MPEG-4 Codec before

plz help

[kschang]

You set the XVID to 2-pass encoding. Set it to 1-pass and it'll work.

[jagabo]

If you want to use 2-pass VBR encoding you have to set up as "twopass, first pass", and save as AVI (there will be no picture in the resulting AVI file). Then go back to the Xvid configuration dialog and select "twopass, second pass" and Save as AVI again. This time there will be video. If you try to perform the second pass without first performing the first pass you get the statsfile error.

[Gi-Ma-Mi]

when i want to compress my audio, i have a problem, usually, if you click to one of the audio codec on the left, there must be lots of choices appear on the right box (ex: when you click AC-3 ACM Codec, on the right there must be something like 32 kBit/s, 32000 Hz, Mono 4kb/s)
but now whenever i click MPEG Layer-3, nothing appears on the right (before, it does), i tried to search for 'MPEG Layer-3' or 'MPEG Layer-3 codec' on google, download and install it but nothing happens, does anyone knows why?


btw: can i ask what is the different between 2pass and first pass?

[jagabo]

During the first pass the codec is only examining the video and creating a file with statistics about each frame. During the second pass the codec uses the information from the first pass to decide how to best allocate the bitrate.

Regarding the audio, if you have some oddball sampling frequency you may need to use VirtualDub's Audio -> Conversion function to change it to something the audio codec will like.

[Gi-Ma-Mi]

ok i get the first part but the audio's part sorry, i don't get it

[Gi-Ma-Mi]

is there anyway to make that MPEG Layer-3 work again?
'cause i'm converting an rmvb file to avi, the original audio is in MPEG Layer-3, before, when that MPEG Layer-3 still worked, the final avi file is fine but now, since that MPEG Layer-3 doesn't work anymore, my final file always has problem (the audio goes before or after the motion)

[jagabo]

Put VirtaulDub into Audio -> Direct Stream Copy mode. That way it will just copy the audio stream without reencoding it.

I'm not sure why your mp3 codec isn't working any more. You could try to install Lame MP3 codec instead. That's what I use.

[Gi-Ma-Mi]

if i use Direct Stream Copy mode, my video file will end up alot bigger, the reason why i didn't use Direct Stream copy mode earlier was because i wanted to compress the file as small as possible

anyway, thanks alot for helping me

[manono]

if i use Direct Stream Copy mode, my video file will end up alot bigger,

No it won't. Not if you Direct Stream Copy both the video and the audio.

[Gi-Ma-Mi]

i tried and it does, i compared one of the previous files i had convert when my MPEG layer-3 still worked (~150mb) while the one i just converted (using the same original file) is ~460mb

[manono]

You probably managed to convert the MP3 audio to PCM (i.e., you didn't Direct Stream it). Open it in GSpot and have a look.

[Gi-Ma-Mi]

how come? i did choose Audio-->Direct Stream copy

[jagabo]

Open your source and output files with AVICodec or GSpot. Those programs will tell you the codecs and bitrates of both the audio and video. Then you can tell exactly why your file got larger. I find AVI codec a little easier to read but GSpot gives more detailed information.

[manono]

So, it had been converted to PCM audio (against your will)? I don't know why (but I'll bet someone else does), as I don't use VDub. Anyway, demux the MP3 audio from the original file, and remux it into the new AVI with the hardcoded subs, replacing the WAV audio.

[jagabo]

VirtualDub MPEG2 and VirtualDUbMod will convert MP2 and MP3 audio from MPEG files to uncompressed PCM -- even if when Direct Stream Copy is selected. In that case you have to recompress. I'm not sure what process he's using with RMVB files but something similar may be happening. Your suggestion of demuxing the MP3 audio from the source, and muxing it with the AVI video may work.

[manono]

Oh, so the same thing happens with the other Dubs too? I never encode with the audio still in the AVI anyway, so I've never seen that problem myself. I guess it's better to either kill it in the AviSynth script file, or just remove it from the AVI completely before doing whatever you're going to do. Save out the original audio and then mux it back in afterwards.

[jagabo]

Oh, so the same thing happens with the other Dubs too?

It doesn't happen with AVI files, only MPEG.

[manono]

OK, got it. Thanks, jagabo.

[sarmin]

can i convert the audio to mp3 vbr in vdub-mpeag2?

and i got a mpeag file and i'm going to convert it to xvid can i make a direct stream copy and not get pcm audio? the audio format is mpeag layer 2 on the movie

[jagabo]

can i convert the audio to mp3 vbr in vdub-mpeag2?

Of course, just enable Audio -> Full Processing Mode, select an MP3 codec, and set it up for VBR encoding.

and i got a mpeag file and i'm going to convert it to xvid can i make a direct stream copy and not get pcm audio? the audio format is mpeag layer 2 on the movie

I already told you, VirtualDubMod and VirtualDubMPEG 2 always convert the source audio to uncompressed when reading MPEG files.

If you want to use the original audio, use an MPEG file demuxer to demux the audio (I use the dumux tools of TMPGEnc Plus), then use VirtualDubMod's ability to mux a separate audio stream.