[OT] Determining Video Formats

[Paul Lemmons]

-------- Original Message  --------
Subject: [OT] Determining Video Formats
From: "David G. Mackay" <mackay_d at bellsouth.net>
To: For users of Fedora <fedora-list at redhat.com>
Date: 03/27/2008 07:43 AM

> On Thu, 2008-03-27 at 10:05 -0430, Patrick O'Callaghan wrote:
>> On Thu, 2008-03-27 at 08:21 -0400, James Pifer wrote:
>>> On Wed, 2008-03-26 at 22:26 -0430, Patrick O'Callaghan wrote:
>>>> On Wed, 2008-03-26 at 16:16 -0700, Paul Lemmons wrote:
>>>>> I am looking for a way to look at an AVI file and see how it was encoded 
>>>>> with enough detail that I could reproduce the process using transcode or 
>>>>> mencoder. I have a media server (D-Link DSM520) that plays most videos 
>>>>> absolutely perfectly. Some, though, it has trouble keeping audio sync. I 
>>>>> would like to compare the videos that work without issue to those that 
>>>>> have issues to see if I can identify what the differentiator might be. I 
>>>>> should then be able to identify those with problems and re-transcode 
>>>>> them to look like the files without the problem. That is the goal, anyway.
>>>>>
>>>>> I suspect this is real easy but I am just not finding it and I am 
>>>>> completely Googled out. Any pointers in the right direction would be 
>>>>> much appreciated!
>>>> The tovid package ("yum install tovid") has a command called idvid,
>>>> which might be at least part of what you want.
>>>>
>>>> poc
>>>>
>>> I was/am in a similar situation trying to figure out a way to transcode
>>> videos for my son's Zune. So far the only tool that has worked is crappy
>>> MS Movie Maker. Anyway, I found this windows tool which I think is free:
>>> GSpot. Just google and it should be the first thing returned. 
>>>
>>> I will check out tovid as well!
>> Note that most Linux transcoders are simply frontends to parts of the
>> 'transcode' package, which has a zillion options and can almost
>> certainly do what you want if you can figure it out :-)
>>
>> ffmpeg is also useful and somewhat simpler.
> 
> transcode has tcprobe, which tries to get information about audio and
> video from a media source.  He also indicated that he might use
> mencoder, which implies that he might have mplayer as well.  Running
> mplayer in a console with the -v flag set gives you a ton of information
> about what's playing.
> 
> Dave
> 
> 
I really appreciate all of the responses so far. The one command that I 
have found that gives me most of what I need is:

mencoder -msglevel all=6 myfile.avi -o /dev/null

It errors out but before it does it drops a lot of information about the 
file.

I will try tcprobe when I get home. I don't have any of the problem 
avi's here at work.
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