Hi Romain,

in case you dont know it yet:

I have made good experiences with eyeD3 for writing mp3 tags.
it supports ID3 up to version v2.4.

BR, Peter


Am 21.08.2011 20:46, schrieb Romain Beauxis:
> 2011/8/21 David Baelde<[email protected]>:
>> On Sun, Aug 21, 2011 at 3:14 PM, Peter Retep<[email protected]>  wrote:
>>> i have updated our production system with using the %wav parameter with 
>>> duration=3600.0 .
>>> When I checked recorded WAV files , I found out that duration is 40 or 80 
>>> milliseconds longer than expected:
>> Hi Peter,
>>
>> Unfortunately, this was to be expected... I was surprised in the first
>> place that such a simple solution was sufficient. I suggest we start
>> thinking about a more robust solution, like finding a clean way to
>> call an external program to write the duration of the recorded WAV. An
>> obvious possibility is to add an on_close param to output.file(). I'd
>> like to avoid it if existing mechanisms allow it already. It seems
>> that on_start/stop won't be enough here... Anybody sees the beginning
>> of another solution?
>>
>> I don't have time to code right now, but let's try to get this moving.
> Actually, an on_close hook would also be ideal to write proper
> metadata for mp3 files using the existing taglib support -- I found
> another lib that could do that inline but I'm reluctant to add yet
> another binding/dependency.
>
> Also, some file formats like ma4/mp4 or flac really need these kind of
> operations.
>
> But, I agree with you, its better to find a generic solution than
> adding another hook..
>
> Romain
>


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