Way to quickly spit MPEG to M2V and MP2/MP3??

[Garibaldi]

I have been using DVD Complete and importing my DVD MPEG-2 files. This splits them into the M2V and MP2 files that I need to import into cuttermaran. But is there any free program that just quickly seperates the MPEG? I KNOW TMPGENC can demultiplex a file but for some reasons when I have TMPGENC do it it screws up the audio so the mp2 file is just blank audio. Is there any other program?? Thanks.

[yoda313]

Hello,
Besweet can do vob to mp2. That might be worth a try.
Kevin
P.S. Just reread that you have mpgs, not sure if besweet does mpg to mp2 but give it a shot.

[trossin]

bbdmux. I created a version that is faster and easier to use from Brent Beyeler's code if you would like that. Also, the free version of TMPGEnc will demux video (my version of bbdmux is faster).

[Garibaldi]

Trossin: Where can I find bbdmux, its not on videohelp tools. Google gives me a download for it but its only command line. Is there a gui? I'm just not very good with command line. Thanks.

[trossin]

Sorry, it is command line only. This is actually a good thing because it allows you to create a batch file and let it run on a list of files while you enjoy content instead of waiting for your computer to ask you to click the buttons again.

Check out this exchange yesterday for how to use the tools. It is not as bad as you would think.

https://www.videohelp.com/forum/viewtopic.php?t=233231&highlight=

[Safesurfer]

How about Vobedit ?

[Garibaldi]

Trossin: Where can I get your version of bbdmux?

I could try vobedit edit but it makes an ac3 file for the audio, and that's if it would read mpeg-2 files. Cuttermaran only accepts mp2/mp3, and I would like to try to keep the converting to a minimum.

[Safesurfer]

Trossin: Where can I get your version of bbdmux?

I could try vobedit edit but it makes an ac3 file for the audio, and that's if it would read mpeg-2 files. Cuttermaran only accepts mp2/mp3, and I would like to try to keep the converting to a minimum.

Vobedit will read MPEG2 files, as far as I know it outputs whatever audio format is in the MPEG and handles AC3, LPCM, and MPA. Being in NTSC land, I don't have any MP2 files so can't test.

By the way, Cuttermaran WILL use AC3 files.

[Garibaldi]

Thanks alot Trossin. I used the "bbdmux myfile.mpg out" to get the parms and then execute them. This is not too bad. I had to figure out how to right my own config file for Pear Pc, a mac emulation program, so this is not too bad. Thanks again for the help.

[trossin]

Garibaldi: Glad to hear that you found bbdmux. Here is a link down to my web site for my version of bbdmux named demux. I included the Visual C++ V6.0 source as well as the executable in the tiny 45 Kbyte zip file. The command line program is down under Release.

http://www.geocities.com/ted_rossin/tools/Video/Video.html

Please feel free to look around the site for other tools.

I sent email to Brent Beyeler about messing with his source a month ago but got no reply. His web site said he posted the source to help the cause so hopefully, it is ok for me to post my modifications to his code. If I'm breaking the rules, someone let me know and I will remove it.

Is it possible to get this put into the tools section?

I can create a simple gui in the next few days (<1 hour job) if there is interest.

[Garibaldi]

Thanks alot Trossin for the link and help. You can post demux at:
https://www.videohelp.com/toolsedit.php?newtool=1
This will add it to the tools list. A gui could be nice but isn't necessary, like you said its easy to use the command line interface. Do you also know of a program to merge multiple mpeg files? When I capture my capture program splits the capture into 4 gb clips, and I can't disable this feature. I'd like to be able to merge all my clips into 1 and then demultiplex them with demux. I know that TMPGENC can merge files, but its a timely process. If you have any questions for me please ask. Thanks for all the help.

[Garibaldi]

Trossin: I checked the link:
http://www.geocities.com/ted_rossin/tools/Video/Video.html
and I don't see anywhere where you can download demux
Do you have it on another site?

[trossin]

I see it when I go to the link. Do a search on the page for demux.zip. It is the last word on the 2nd bullet item line under Source Code. You should be able to click the word and it will download for you. If it is not there maybe you need to have your browser refresh the page.

You should be able to see this line on the page.

"Source code and executable for a command line MPEG demultiplexer based on bbdmux by Brent Beyeler. demux.zip"

The layout sucks for this page. I wrote it in a hurry and I believe it is hard to find items. I will clean it up to match my other pages in the near future.

[trossin]

Ok. I did it. The web page has been updated to make it look like other pages on my site. I cleaned up the mess. I also changed the DirectShow player zip file to include the executable. Let me know if it does not work out.

[Garibaldi]

Thanks Trossin, I am now running demux. Its so much faster than bbdmux. Thanks alot.

[Garibaldi]

Trossin, I noticed that demux splits the file into m2v and pcm files. Is there anyway to make it output the audio in mp2 files?

[trossin]

Hey Garibaldi,

Demux just spits out all video and audio streams that it finds in the input file. If it is only generating PCM files, there is not an MP2 stream in the source file or I have a bug in my code. I use demux on files created with a PVR-250 capture card and I get a video (m2v) file and an audio (mp2) file. I have also used it on some AC3 audio VOBs and had no problems.

If there is only PCM in the source you can use BeSweet and BeSweetGui to convert to MP2. I have also used it to create AC3 files but some people claim that it does not work on their Pioneer DVD players. It worked fine on my Panasonic but I tend to use MP2 even though it is not supposed to be supported for NTSC.

I forgot to ask. Does TMPGen find an MP2 stream if you use it to demux?

[lordsmurf]

TMPGENC's MPEG TOOLS (under FILE) does this.

DVD format does not use MP3, BTW.

It uses MP2, AC3 or WAV.

[trossin]

Sorry, I should be more clear. I was asking if TMPGEnc finds an MP2 stream in your file. I have used TMPGEnc to extrac MP2 files from my MPEG2 files and it works great. It is just slower than demux when it comes to demuxing the audio and video (I timed it). I would guess it is because it does 2 passes through the source file.

I read some comments from the DVDLab author that doing 2 passes was faster for them in their demux code than one because it cut down on fragmenting the disk. I believe that this could be true if tiny RAM buffers were used when outputing the data. I recoded demux from bbdmux to use 1 megabyte buffers for each stream. This way I dump nice big chunks of data to disk only when a buffer fills up. It is a bunch faster. RAM is cheap. People have lots. A few temporary megabyte buffers is nothing these days.

[Garibaldi]

Trossin, I couldn't tell you for sure if TMPGENC splits it into mp2 because my TMPGENC mpg 2 trial ran out. I'm just looking for alternatives to buying TMPGENC. I would guess that it does though, because I am capturing mpeg 2 dvd compliant d1 video files. Take a look here:
https://www.videohelp.com/forum/viewtopic.php?p=1010794#1010794
I wonder what the problem is, because pcm shouldn't be in my capture.

[trossin]

I'm at a loss. PCM files should by like 10x larger than the corresponding MP2 file. Does the orignal bbdmux claim it has an MP2 file? Does DVD complete think that the file is PCM or MP2(you may have to change the file extension to fool it)? I looked at my changes to the code and don't see anything obvious that I messed up. I look at the stream and substream IDs to figure out an extenstion to name the file. I have never processed a PCM file as they waste too much bandwidth on audio.

By the spec, NTSC DVD does not support MP2 audio. I read the words from the vendor of your card and they never said what audio they support only words about NTSC MPEG2. In reading your other posts it does seem that you have seen MP2 audio. MP2 audio is usually around 224 Kbits/sec(28 Kbytes/sec). PCM is uncompressed 16-bit audio at 1536 Kbits/sec (192 Kbytes/sec) if I can do math. Someone help me out here. You should be able to do a rough calculation to see what you have. Record a 10 second clip and look at file sizes.

If you can post a tiny example of source (a 1 second clip) I can take a look and see what is inside. If you can keep it under 1 megabyte you could also email it to me. I use Ulead Movie Factory 2 and it tells me what a source MPEG 2 file has inside it as far as bit rates audio types image sizes and the like.

I would like to learn what is going wrong and fix the tool if possible. If is not the tool I am still interested as well.

[Garibaldi]

Trossin, let me try running the file through bbdemux and see what it creates.

[Garibaldi]

Trossin, my running it through bbdmux was inconclusive. I did check up on the file sizes so maybe you can determine if the original capture was in pcm. The original mpeg capture was 73 mb. The split pcm audio file with demux is 33 mb. I hope this helps.

[trossin]

I would say for sure that you are capturing in PCM mode. 1/3 of the file for audio is why PCM is bad news for us compression geeks. If you are an audio purist or have a dual-layer recorder PCM is ok but for most AC3 or MP2 is the way to go.

See if your USB capture device has a setting that allows you to configure the audio that is captured. I would expect that it has knobs for video quality as it is an MPEG2 capture device. If there are no settings for the audio, I would guess that all it is capable of is PCM (uncompress) audio capture. In this case, you will still want to use demux but then you would like to use BeSweet to convert to MP2 audio as it it will shrink your file and allow you to up your video bits/second settings. This will allow you to improve the quality of your video. If it does have knobs make sure you are getting MP2 audio and mess around with the bit rates. You can go pretty low and it will still sound pretty good.

My first run in with DVD bummed me out completely as the tools I got with my recorder only supported PCM audio which allowed about an hour of video on a DVD. The audio data was eating all my disk space. I think my MP2 audio captures exploded by a factor of 1.5 when the tool converted to PCM. When I got DVD MovieFactory (which supports MP2) I found that 2 hours with nice looking video was possible on a single layer disk.

[Garibaldi]

Trossin: I checked my capture software and the only audio setting that can be changed is the sample rate. So it looks like your right and it can only capture pcm audio. I'll just use BeSweet to convert it. You may have without realizing it solved the big problem I was having over here:
https://www.videohelp.com/forum/viewtopic.php?p=1010794#1010794
with my captured video being too big. I was looking for 15 mb a minute for my capture and instead was turning up about 30. I bet this was caused by the pcm audio.

[Garibaldi]

I just tried besweet gui in wizard mode, got my pcm file in there with settings to output to mp2 and when I hit go nothing happened. It just opened a blank log file and that was it. Am I missing part of the program or something?

[trossin]

All I can sugguest is to use it in GUI mode.

1. Set the path to BeSweet by clicking the folder next to BeSweet.exe

2. Set the Input. I have never used this with a .pcm file but I would think that you could just rename the extension to .wav. You need to set the file type in the upper right hand corner of the file dialog box.

3. Select the output format by clicking on DSPguru_MP2_for_DVD in the BeSweet Profiles in the upper right hand corner.

4. Click the WAV to MP2 button (lower right corner).

I put all the BeSweet files into the same directory. I believe that there are guides available for this tool if this does not work.

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It sure sounds like you have to go through a lot of work to use your authoring software. I hate to sound like an advertisement but it might be worth your time to download an evaluation copy of Ulead's DVD MovieFactory 3. I bought version 2 for $40 bucks last year and I can just load an MPEG 2 file, author and burn. The menus are limited but it is able to reencode the video if you want so you could have it convert your PCM audio to MP2 without all these manual steps. You might be able to find a copy of version 2 very cheap on E-bay or some other E-store.

All this manual work is what turned me off to DVDLab. I was willing to put up with it so I was just about ready to send them 100 bucks when I found out that their tool could not handle multple video resolutions on the same disk. I had to convert my MP3 background music to MP2 before loading it into the tool as they supply no converters at all.

[Garibaldi]

Thanks Trossin, I actually got Besweet gui to accept pcm import and then converted it to mp2. It was about 2 mb, making my 3 minute clip only 40 mb, 5 mb less than I wanted! Thanks. I think I will look into alternate software too. I have been able to simplify my process to this:
DVXCEL Capture MPEG 2 CBR 4200 720x480
Demux MPEG 2 into M2V & PCM
BeSweet GUI PCM to MP2
Import & Use MPEG2Schnitt to edit out parts. Export new M2V & MP2
Import M2V & MP2 files into DVD Author Gui, author DVD and then create AUDIO_TS & VIDEO_TS
Use Record Now! And drag AUDIO_TS & VIDEO_TS folders on a data DVD and burn.
but it still needs a little tweaking. Its considerable better than before where I was rerendering my files.

[trossin]

Great to hear that you have a recipe that works!