[FFmpeg-user] How to set preview of video?

[Gyan Doshi]

On 30-04-2020 12:09 pm, Michael Koch wrote:
> Am 30.04.2020 um 06:33 schrieb Gyan Doshi:
>>
>> Basic syntax is
>>
>> |ffmpeg -i file.mp4 -ss 15 -i file.mp4 -map 1:v:0 -map 0 \ 
>> -filter:v:0 scale=320:-1,trim=end_frame=1 -c copy -c:v:0 mjpeg 
>> -disposition:0 attached_pic out.mp4|
>
> What's the meaning of the "|" characters at the beginning and end?
> What's the meaning of the "\" character and how must this command line 
> be modified for a Windows batch file?

Sorry, it seems the line break wasn't preserved. Delete the \. Don't 
know how the | showed up.

Gyan