[FFmpeg-user] Getting a point in time as known by ffmpeg?

[Lou]

On Fri, 2 Mar 2012 11:31:41 -0800
Gary Taylor <squeaky at sdf.org> wrote:

> When I watch a video (in xine or gxine for example)I see a
> value displayed which is how long the video has been
> playing.  If I find a scene where I want to process the
> video starting at 00:00:40.000 as displayed in xine, in
> ffmpeg I have to experiment to find that same spot. It's not
> at 00:00:40.000, but instead 00:00:63.000.  
> 
> It's like the notion of time in ffmpeg is different than
> what is displayed by the players.  Is this user error, 
> should I be viewing them in something else, or is there a
> way to use ffplay to see display the time? 
> 
> fmpeg version N-37798-gcd1c12b Copyright (c) 2000-2012 the
> FFmpeg developers
>   built on Feb 11 2012 23:02:52 with gcc 4.4.3
> 
> 
> Thanks,
> Gary
> 

ffplay shows the current time in the last line:

$ ffplay input.mkv 
...
   3.05 A-V:  0.002 fd=   1 aq=  320KB vq= 5357KB sq=    0B f=0/0   f=0/0

In this example 3.05 seconds has elapsed.

Also note that the behavior of the -ss option can change depending if it
is used as an input or output option.