[FLVTool2-users] question about modifying frame rate metadata

leolea poubou at videotron.ca
Fri Apr 20 10:34:41 EDT 2007



Do you mean that it is possible to change de keyframe interval in a FLV
using flvtool2 ?

If so, how ??



On 4/20/07 9:11 AM, "nojoke68 nokoke" <nojoker68 at yahoo.com> wrote:

> Brooks --
>   
>    First of all, thanks...
>   
>      I was using just flvtool2 -P, I did not realize I needed to do -PU.
>   
>  
>   
>    However it didn't work!
>   
>    When I ran flvtool2 -PU -framerate:5 file.flv
>   
>  
>   
>    it changed the framerate all right, but flvtool2 calculated other things
> like keyframe data and the videodatarate tag and added these to the metadata.
>   
>  
>   
>    I thought I was able to change the videodatarate from 2000.12 to 400 and
> slow the file down but I can't seem to replicate this success.
>   
>    
>   
>   question: does flvtool2 always add keyframe data?
>   
>   question: anyone have any success with slowing a file down this way?
>   
>   question: if it cant be done this way, what can I do to reencode it to slow
> it down and preserve the audio data too?
>   
>  
>   
> Johann
>   
>> Message: 8
>> Date: Wed, 18 Apr 2007 11:08:50 -0700 (PDT)
>> From: nojoke68 nokoke
>> Subject: [FLVTool2-users] question about modifying frame rate metadata
>> To: flvtool2-users at rubyforge.org
>> Message-ID: <598325.32781.qm at web32907.mail.mud.yahoo.com>
>> Content-Type: text/plain; charset="iso-8859-1"
>> 
>> Hi -- I have some FLV files that have an incorrect frame rate.
>> The frame rate is 20 but it should be 5.
>> 
>> Is it possible to inject new metadata into the FLV file to correct this?
>> 
>> Message: 9
>> Date: Wed, 18 Apr 2007 14:59:46 -0400
>> From: Brooks Andrus
>> Subject: Re: [FLVTool2-users] question about modifying frame rate
>> metadata
>> To: flvtool2-users at rubyforge.org
>> Message-ID: <46266AA2.9030104 at gmail.com>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>> 
>> http://www.brooksandrus.com/blog/2007/04/15/change-insert-flv-metadata-values
>> -timestamp-dimensions-with-flvtool2/
>> 
>> you should be able to overwrite the metadata values without issue,
>> although its unclear how that will impact the playback of the video.
>> 
>> Brooks
>> 
> 
>   
> 
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> 
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