Take a look at :
http://stackoverflow.com/questions/2017843/fetch-frame-count-with-ffmpeg
在 2012-9-11，上午8:51， Rouhi Amirhossein2 写道：
> Hi
> I have a list of videos. how can i run a program, like ffmpeg (or any other
> program ) in a for loop to just get the size of the video frames ? like:
>
> for(i=0;i<MaxVideoNum;i++){
>
> FrameSize[i] =system(ffmpeg_path); //!!!?????
>
> }
> Cheers
> Amir
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