[FFmpeg-user] FFplay questions

Christoph Gerstbauer christophgerstbauer at gmail.com
Tue Feb 9 15:04:33 CET 2016

How can I trigger FFplay to seek to another timeposition while the file 
is stil open?

I always have to reopen it and set a new -ss option. I want to do this 
while the file is playing, or in pause mode.
Like in MPV or SHOTCUT.
How can I do that?
I want the same behaviour when clicking into the picture (timeline = 
0-100 percent). It jumps automatically to a percentual time position. 
But how can I trigger that on the command line? While the file is 
playing, I have no possibility to type a new command into the timeline.

Best Regards

Am 05.02.2016 um 12:31 schrieb Paul B Mahol:
> On 2/5/16, Christoph Gerstbauer <christophgerstbauer at gmail.com> wrote:
>> Hi
>> 1.) The positioning with ffplay via the Videpicture clicking works very
>> fast.
>> I click into the picture and immediately I get to the percentual
>> position (100 percent= width of the video window) of the video.
>> When using the comando -ss It take longer as logn the file is.
>> Examples: 30min file -> very fast
>> 4h file (avi, huffyuv) -> 2 seconds waiting time.
>> It it possible to speed the seeking time via -ss up so that I get a
>> reaction time like via clicking into the videopicture?
>> 2.) Is there a shortcut to go one frame backward?
>> Only forward is possible by using the S key.
>> Backward would also be very helpfull.
>> I got the recommendation, that I should not use FFplay as VideoPlayer.
>> And is there a player alternative outside which can be used als
>> alternative to VLC, MPlayer oder FFplay?
>> Usecase: I want to play and seek frame by frame inside of video files
>> like AVI with huffyuv, or MXF with MPEG2.
>> And the seeking should work very fast, also with longer files (4h).
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