[FFmpeg-user] repeat first and last frame of a video

[Michael Koch]

>
>>
>>> Repeat the first frame of a video 100 times (with the same framerate as
>>> the video), then copy the video, then repeat the last frame 100 times?
>> If you mean to copy video without generally losing quality than 
>> answer is no.
>> Otherwise you can use loop video filter.
>
> The loop video filter requires the number of the first frame of the 
> loop. For the first frame that's 0, that's easy. But is there a way 
> for find out the number of the last frame in a video? I mean 
> automatically, because I want to run the command for several videos of 
> different length.
>

Related question:
Is it possible to give ffmpeg a video as input, and get the last frame 
of this video as output?

Thanks,
Michael