Hlp! TMPGEnc wont read MP2 in AVI

[Capt.Video]

I have several Divx files with MPA/MP2 audio in them. They play perfectly fine on my PC (and also on Philips 642). However, when I load them into TMPGEnc 2.5 and encode to DVD (using wizard), I only get the first 200ms of audio, then nothing.

Ive fiddled with the VFAPI settings and priorities, not knowing if that would work or not, with no positive results. Still same problem.

Heres the GSpot on the audio:
Codec: 0x0050(MPEG (MP1/MP2), ISO/IEC) MPEG-1 Layer 2
Info: 48000Hz 192 kb/s total (2 chnls) (CBR)
Stat: Codec(s) Installed

Oddly, if I use TMPGenc and open the MPA, write to Wav and then encode to MP3, and mux it all with VirtualDubMod, then TMPGEnc can open it and encodes it fine with MP3 audio. Im baffled. Id just assume keep the MP2/MPA audio of the Divx as that eliminates a lot of transcoding, etc.. I am converting a LOT of Tivo MPEGs to Divx. I am wanting to enode so that I can generate a DVD from the file later if the need arises.

Anyone have any suggestions?
Andrew

[mats.hogberg]

Demux the audio from AVI with VirtualDubMod.
Reencode video only.
Author as DVD with demuxed audio, reencoded video.
The audio is already DVD compliant (at least for most players), or you could reencode to AC3 with ffmpeggui

/Mats

[pchan]

Use VirtualDubMod and frameserve to TMPGEnc. Open your Divx with VirtualDubMod and go to File and select Start Frame Server.. Save "filename.vdr" to any location and start TMPGEnc and click Video source Browse(set filetype to All Files in order to see the .vdr file). Hit Start button... you all set.

[Capt.Video]

But, it used to work before. I just wanted it to work the same again. Im also not interested in having to demux and mux anything when it used to function.

Any other ideas?

[Sartori]

I seem to recall getting something like this problem with TMPenc when I used the wizard , for some reason it wouldnt accept various audio inputs from avis - dont know why (ie probably a bug in it) . My workaround was not to use the wizard (and load the file from the front end) as all my settings were standard anyway it didnt really take much more time anyway and it accepted more audio input formats . Id suggest a reinstall of it as well .

[Capt.Video]

TMPGEnc, Options, VFAPI, set DirectShow to highest priority allowed me to open from the FRONT END the AVI and it accepted the MP2 audio. Before that, I would get an error saying "Audio type not recognized or supported" when I tried to open.

Also, it does appear the Wizard is kinda buggy, Ill be using the front end from here out.

HOWEVER, its back to the original problem, only about the first 200ms of audio plays, then nothing.



When I frame serve with VDM, I get NO audio, I suspect I may get similar with the VFAPI priorities adjusted.

Im still at a loss, this USED to work, but doesnt now.

Anyone else?
Andrew

[mats.hogberg]

Used to work with this file before? Just because a conversion method works for one AVI, doesn't make it work for any AVI by default.
Chanses are, there's something wrong with the audio stream in this AVI, something a DVD player might be able to negotiate - that's why I suggest you author the DVD with the audio stream unprocessed.
If you're not "interested in" trying different approaches for different source material, I'm afraid you wont get very far.

/Mats

[Sartori]

If it used to work (and assuming as Mats points out above that the files are exactly the same) , then 2 state the obvious - something has broken , I would delete and reinstall TMPGenc and also the relevant codecs if I were you , that the first 200msec plays is misleading and deflecting from the problem , a pain in the arse , yes , but if you want to start fault finding then you`ll need to start ticking off the boxes . Do them one at a time , and reinstall them one at a time and retry , so if it comes again , you`ll know which one is was .

The other thing is , have you changed anything like the audio recoder to an external one ?

Dabbling with the priorities never brought me anything but woe (on a massive scale).

[Capt.Video]

I also tried my TMPGEnc 2.0.2 and it does the same, appears its not in the TMPGEnc its self, but XP's CODEC stack somewhere. Ive examined it in the control panel, but dont see anything thats out of place. Then again, Im not a Windows audio CODEC expert either.

Since an AVI with MP3 audio loads into TMPGEnc perfectly fine and encodes without a hitch, I am going to just transcode the MP2 to MP3 and mux when encoding the future Divx files with VirtualDubMod. The filesize will be noticable smaller too, so theres no loss in the effort.

Thanks for everyones help. The next FDISK I do, Ill post back with any changes. HAHA!

Andrew

[Capt.Video]

For fun, I tried bbMPEG too.... Boy, that was old school! Anyway, it also could not load AVI file with MP2 audio. Supporting my assumption its in XP's OS rather than the actual program thats doing the encoding. Strange, very strange.

Andrew

[Capt.Video]

Somewhere, I located the MPEG2 filter for TMPGEnc, and it loads MPEG1 and MPEG2 (muxed video and audiorogram streams) perfectly fine.

HTH,
Andrew