.MOD files

[kaboekieman]

It would be great if VideoLAN could playback .MOD (MPEG-2) files directly. These files are created in lots of new flashed based/HDD camcorders. Now a work around is needed before you can see/hear it (rename the .MOD extension to .MPG). Can this be accomplished in the new version of VLC player, so .MOD files can played back directly, without first having to rename it?

Thanks a lot in advance,

Jeroen Wolf
from Amsterdam, the Netherlands

[VLC_help]

You have tried with nightlies?
http://nightlies.videolan.org/

[Jean-Baptiste Kempf]

Patches are welcome.
Samples too.

[kaboekieman]

Hi VLC_help & j-b, thanks a lot for your replies. I have tried nightlies, but it was exactly the same as the most recent (normal) VLC player... If I play the file, it doesn't work.

I have uploaded a 2 minute sample. This sample file is the raw .MOD file that was recorder onto my SD card (so without editing and/or renaming it). It was recorderd by me in Standard Definition (true wide screen (16:9) => 1024x576) on the new Canon FS100 camcorder and I set the recording quality on SP (standard play; 6000 Kbps). The sample is 116 MB, I've uploaded this as two .rar files (maximum upload of the Rapidshare website was 100 MB ).

The download location is:

http://rapidshare.com/files/121615234/M ... 1.rar.html
http://rapidshare.com/files/121624237/M ... 2.rar.html

VLC player can play this file, but only if you first rename it to .MPG. It would help me and lots of other users greatly if this file would be recognized by VLC player and that it will play directly. Lot of other camcorder now use the .MOD extension, not only Canon, but also for example Panasonic and JVC use it.

I hope this helps....
If you have any more questions, I'll be more then happy to give my support

Jeroen Wolf,
from Amsterdam, the Netherlands

[Arite]

The *.mod file extension is also used for synthesized MOD audio files which VLC can playback.

*.mod is one of the file extensions accepted for mod (i.e. the main one ):

Code: Select all

static const char* mod_ext[] = { "mod", "s3m", "xm", "it", "669", "amf", "ams", "dbm", "dmf", "dsm", "far", "mdl", "med", "mtm", "okt", "ptm", "stm", "ult", "umx", "mt2", "psm", NULL };

Presumably VLC assumes it is the MOD file format, tries to decode/demux it using the mod file demuxer and fails.

Arite.

[kaboekieman]

Hi Arite,
Ah, that explains a lot ... Also the +/- 8 sec of harsh sound I hear when playing back my 2 minute .MOD audio/video file that was recorded with my Canon FS100 camcorder. Is there a programmable work around for it (in the source code) so the VLC program can recognise the .MOD file as an audio/visual MPEG-2 file instead of the ' synthesized MOD audio file'?

I hope you can reply me. Not only me, but lots of other users who work with this new file format for camcorders will appriciate it.

Thanks in advance,

Jeroen Wolf
from Amsterdam, the Netherlands

[VLC_help]

Renaming is the only clean option that comes to my mind. Removing libmod_plugin.dll might also work, but it might be too scary option for many.

[kaboekieman]

Yeah I know that works. But if you or some other programmer can help me out with this? I'm so sure lots of people will be helped if this is automated. Especially if you have to rename lots of .MOD recordings to .MPG. I know someone (Sektionschef) made a small program named SDcopy.exe to make life a little less harder But if VLC player can do it, so many people are helped, it will make a huge difference.

I hope you will consider this. Perhaps you can suply me with a patch to make the adjustment.

Thanks again, Jeroen Wolf
from Amsterdam, the Netherlands

[Arite]

Modifying demux.c (~line 20) to include *.mpg/remove *.mod could work as dirty hack however you'd need to recompile VLC and no guarantees.

Arite.

[MetalheadGautham]

Modifying demux.c (~line 20) to include *.mpg/remove *.mod could work as dirty hack however you'd need to recompile VLC and no guarantees.

Arite.

talking about recompiling, what are the libraries needed to do it ? I am thinking of going for a compiled package instead of a readymade package of VLC on Sidux.

[Arite]

Have a read here:
http://wiki.videolan.org/UnixCompile

The preferred method is apparently (for Debian-based OSs):

Code: Select all

apt-get build-dep vlc;

Arite.

[Jean-Baptiste Kempf]

Modifying demux.c (~line 20) to include *.mpg/remove *.mod could work as dirty hack however you'd need to recompile VLC and no guarantees.

Arite.

Putting a higher priority to the mod demuxer could work too.

[kaboekieman]

ok thx, tomorrow I will try to manualy adjust some of the codes Hope it will work. I'm not a programmer, so I guess i will be at it for a while I will follow your discription though Arite and j-b. If you have any more input for me (perhaps an already adjusted file ) I will appriciate it a lot. But for now thanks for all your help.

Jeroen Wolf

[kaboekieman]

Hi VLC_help,
removing the 'libmod_plugin.dll' files seemed to work. I can now play back my .MOD files just if it was a media file. However deleting a 'large' file in order to get 1 file extension to work is rather a dangerous solution? Can you or someone else of the VLC moderators/programmers come up with a stable solution to get this fixed?

The problem lies in the fact that VLC recognise the .MOD extension as an synthesized MOD audio file instead of a MPEG-2 media file. Putting a higher priority sounds like a stable solution like j-b said. But I have no programming skills and to recompile... hmmm. I hope you can help me out with this. Perhaps you could give me the exact syntax of a certain file I have to change?

The best would be if I have an install program of the laterst VLC player that recognise the.MOD file as a MPEG-2 file instead of the synthesized MOD audio file.

thanks again for all your help, Jeroen

[Jean-Baptiste Kempf]

... Fill a bug request.

[VLC_help]

Hi VLC_help,
removing the 'libmod_plugin.dll' files seemed to work. I can now play back my .MOD files just if it was a media file. However deleting a 'large' file in order to get 1 file extension to work is rather a dangerous solution?

Removing that dll isn't dangerous at all but some people might think that because they always teach you to not to modify your software

[Jean-Baptiste Kempf]

The problem lies in the fact that VLC recognise the .MOD extension as an synthesized MOD audio file instead of a MPEG-2 media file. Putting a higher priority sounds like a stable solution like j-b said. But I have no programming skills and to recompile... hmmm. I hope you can help me out with this. Perhaps you could give me the exact syntax of a certain file I have to change?

No the problem lies in the fact that CASIO names MPEG-2 files as .MOD. Not that VLC makes incorrectly its job. Please don't mistake about that...

Moreover, I cannot download 100Mb for this. You have to give me the messages if you want it fixed.

[felix-nematt]

*bump*

No the problem lies in the fact that CASIO names MPEG-2 files as .MOD. Not that VLC makes incorrectly its job. Please don't mistake about that...

This still hasn't been fixed it seems. And seeing as how it's not just Casio but JVC and others also are doing it, it does seem a little bit like VLC is simply behind the times.

[VLC_help]

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http://mailman.videolan.org/pipermail/v ... 55692.html