[MEncoder-users] How can I decode a movie->image at a specified rate ?!

[Nico Sabbi]

Pierre PARENT wrote:

>>Pierre PARENT wrote:
>>
>>    
>>
>>>Hi everybody,
>>>
>>>I would like to know if there is a way to obtain PPM images from a video in stdout at the video frame rate.
>>>The goal is to show a video using amsn(or similar) by simulating a video device (/dev/video*) like it was a webcam.
>>>
>>>I have tried that :
>>>-> "mencoder -really-quiet my_movie.wmv -nosound -ovc raw -vf format=rgb24 -of rawvideo -o /dev/stdout"
>>> 
>>>
>>>      
>>>
>>-fps 25
>>    
>>
>I tried this option, but it doesn't have any impact on the decoding rate.
>  
>

maybe you want encoding at exactly real time? not faster and not slower 
than fps?

>>>      
>>>
>>stdout is seriously abused by mencoder. Don't rely on  it
>> 
>>    
>>
>yes, but it is the only way I have found to do that. If you have any suggestions to make it differently...
>  
>

mkfifo mypipe
mencoder -o mypipe ... &

yourpgm < mypipe
 
 
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