How to convert MP4's with the new AMVapp 3.0 beta

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How to convert MP4's with the new AMVapp 3.0 beta

Postby Daniel_BMS » Sun Apr 11, 2010 10:50 pm

Now that we are on AMVapp 3.0 beta how do we convert MP4's? I have collaborated with somebody in Japan to create clips with video game footage and the source footage is in the MP4 format. It looks like ffmpegsource and ffvideosource no longer works with the new AMVapp. What is the solution now?
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Re: How to convert MP4's with the new AMVapp 3.0 beta

Postby Kariudo » Sun Apr 11, 2010 10:57 pm

same as always (avisynth + vdub/mod)

redownload ffmpegsource
place in plugins folder
????
profit

and for reference, the amvapp v3 has been out of beta long enough to become obsolete itself
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Re: How to convert MP4's with the new AMVapp 3.0 beta

Postby Daniel_BMS » Mon Apr 12, 2010 1:03 am

OK I have uninstalled everything from the beta version of AMVapp 3 and installed everything except the Premier plugin from the final version of AMVapp 3. I also tried installing the latest ffmpegsource. I also downloaded the latest VirtualDubMod as backup. However Neither VirtualDub allows me to open up an MP4 with my convert MP4 avs script. ffvideosource works, but without audio it is impossible to time the clips properly. Why does ffmpegsource no longer work?
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Re: How to convert MP4's with the new AMVapp 3.0 beta

Postby Kariudo » Mon Apr 12, 2010 1:53 am

development continued on ffmpegsource, and I guess they changed it to ffmpegsource2()

that is if you have ffms2.dll

and if all else fails
video = ffvideosource()
audio = ffaudiosource()
audiodub(video,audio)
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Re: How to convert MP4's with the new AMVapp 3.0 beta

Postby Daniel_BMS » Mon Apr 12, 2010 2:20 am

ffmpegsource2 will open, but trying to play the video creates access violations. All else failed.

The second option intrigues me. How do I use the audiodub feature? I copied what you gave me and inputted my video's address with file name, but VirtualDub tells me it doesn't know what video means.

Edit: Looks like I need to extract the audio from my MP4. What is the best way to do that?
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Re: How to convert MP4's with the new AMVapp 3.0 beta

Postby Mister Hatt » Mon Apr 12, 2010 3:00 am

You're all wrong about ffms2 etymology. The only avisynth plugin for it uses ffvideosource, not ffmpegsource or ffmpegsource2. There is a wrapper script as well to link ffvideo and ffaudio but it's not really needed. I have no idea where you got your information from but the original FFMS was made obsolete almost 2 years ago and development on it was halted. http://code.google.com/p/ffmpegsource is the homepage for the latest version.
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Re: How to convert MP4's with the new AMVapp 3.0 beta

Postby Daniel_BMS » Mon Apr 12, 2010 9:37 am

So how can I edit an MP4 in VirtualDub with sound. I can easily convert the MP4 with DVD Copy 6, but I want to know how everybody else handles MP4's.
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Re: How to convert MP4's with the new AMVapp 3.0 beta

Postby Mister Hatt » Tue Apr 13, 2010 12:59 am

ffvideosource("file.mp4") and don't use audio in avisynth because it is remarkably stupid.
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Re: How to convert MP4's with the new AMVapp 3.0 beta

Postby Kariudo » Tue Apr 13, 2010 1:48 am

If you're going to tell someone to not do something one way, it is generally a good idea to tell them about an alternative (bonus points if you do it without sounding pompous).

Now, the normal user won't care if method A works slightly better than method B (nor about the minutiae of its operation) as long as method A gets the job done. So as far as that end is concerned, audio in avisynth is fine (read: good enough)
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Re: How to convert MP4's with the new AMVapp 3.0 beta

Postby Mister Hatt » Tue Apr 13, 2010 9:23 am

Audio in avisynth doesn't always work (it sucks with certain things on PCM which are common on bluray) and even when it does it is lossy. The best way to get audio cut properly is using a perlscript like split_aud.pl (google it) which reads trim points from an avs file and after taking a framerate argument uses mkvmerge to cut and rejoin stuff. You can splice with mkvmerge directly if you need to join multiple segments. There are plenty of good documents people can google about why audio in avisynth is bad and there is no reason I should need to explain when people are just too lazy to look it up themselves.
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Re: How to convert MP4's with the new AMVapp 3.0 beta

Postby Zarxrax » Tue Apr 13, 2010 10:01 am

Mister Hatt wrote:There are plenty of good documents people can google about why audio in avisynth is bad and there is no reason I should need to explain when people are just too lazy to look it up themselves.

I would be interested in seeing these documents, and I did not find them after a cursory google search.
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Re: How to convert MP4's with the new AMVapp 3.0 beta

Postby Kariudo » Tue Apr 13, 2010 10:46 am

Mister Hatt wrote:Audio in avisynth doesn't always work (it sucks with certain things on PCM which are common on bluray) and even when it does it is lossy.

You might have noticed that the op isn't dealing with blu-rays nor PCM audio here.

The best way to get audio cut properly is using a perlscript like split_aud.pl (google it) which reads trim points from an avs file and after taking a framerate argument uses mkvmerge to cut and rejoin stuff. You can splice with mkvmerge directly if you need to join multiple segments.

mod16.org is down D:
that, and perl isn't something an editor is likely to have (much less know how to use/install).

You'd do well to realize that the majority of people asking for help here:
-Are scared of command line
-Probably don't have any computer programming experience
-Aren't involved with developing avisynth
-Want the simplest solution (taking the least amount of steps/work/knowledge)
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Re: How to convert MP4's with the new AMVapp 3.0 beta

Postby Daniel_BMS » Tue Apr 13, 2010 11:30 am

I would like to consider the most difficult options, but the subject here is how is everybody editing MP4's in VirtualDubMod with sound? I have not yet moved onto ripping HD-DVDs and Blu-rays.
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Re: How to convert MP4's with the new AMVapp 3.0 beta

Postby mirkosp » Tue Apr 13, 2010 12:04 pm

Most people don't use virtualdubmod anymore since it's outdated, and the simple virtualdub is much better.
Anyway, what you need to do is just opening the MP4 in avisynth like so:
Code: Select all
audiodub(ffvideosource("your file.mp4"),directshowsource("your file.mp4"))

Then load the avs file into virtualdub and you'll be able to use the audio menu to your needs.
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Re: How to convert MP4's with the new AMVapp 3.0 beta

Postby Mister Hatt » Wed Apr 14, 2010 9:51 am

ffaudiosource k go? Or just demux in YAMB and convert to mp3 seeing as these people obviously have no need for quality. No wonder AMV editors generally have no idea what they're dong. CLI is good for you.
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