[FFmpeg-user] ffplay on second monitor

[mark at leman.net]

Quoting mark at leman.net:

> Quoting Carl Zwanzig <cpz at tuunq.com>:
>
>> On 1/15/2019 4:49 PM, Mark Leman wrote:
>>> Is there a way to specify which screen the window appears on? (OS  
>>> is Windows 10)
>>
>> I don't offhand know if the 'dshow' device supports positioning but  
>> it ought to... a trip through code may be in order*; I do know the  
>> gdigrab device supports "-offset_x 1920 -offset_y 0 -video_size  
>> 800x600" which gets the second monitor on my setup.
>>
>> *If I'm inspired tomorrow, I'll take a look; there's a 6 hour  
>> flight in the near future :).
>
> Thanks for the help.
>
> I am not an expert at this, but I though the dshow device was the  
> input device? I am taking the input from vmix over this and that is  
> working well, I get the correct video input and scale and crop it  
> fine....
>
> The problem is I want to specify where the *output* goes to, so that  
> the output is displayed on my second monitor which will be replaced  
> by the video wall (fed by HDMI). Once I use the -noborder option you  
> can drag the window any more, and actually dragging it is not ideal,  
> a command line option would be preferable :-)
>
> I followed a suggestion from another user and looked at mpv player,  
> this has an option to '--screen=n' to tell it which monitor to show  
> the output on. Unfortunately I don't think mpv player can take the  
> dshow input, so I am back to ffplay as the closest option.
>
> Regards,
> Mark Leman

Apologies for not proof reading my email before hitting send, should  
have said:

The problem is I want to specify where the *output* goes to, so that  
the output is displayed on my second monitor which will be replaced by  
the video wall (fed by HDMI). Once I use the -noborder option you  
*can't* drag the window any more, and actually dragging it is not  
ideal, a command line option would be preferable :-)

Regards,
Mark Leman