capture-time-difference

$ $mpv Webcam_on_2014-10-02_torsdag_at_22\:22\:34.mp4
Playing: Webcam_on_2014-10-02_torsdag_at_22:22:34.mp4
[stream] Video (+) --vid=1 (*) (h264)
File tags:
 language: und
 handler_name: VideoHandler
 major_brand: isom
 minor_version: 512
 compatible_brands: isomiso2avc1mp41
 encoder: Lavf56.4.101
Audio: no audio
VO: [opengl] 1920x1080 => 1920x1080 yuv420p
V: 00:00:09 / 00:02:56 (5%) D: 8


Exiting... (Quit)
$mpv Screencast_on_2014-10-02_torsdag_at_22\:22\:34.mp4
Playing: Screencast_on_2014-10-02_torsdag_at_22:22:34.mp4
[stream] Video (+) --vid=1 (*) (h264)
File tags:
 language: und
 handler_name: VideoHandler
 major_brand: isom
 minor_version: 512
 compatible_brands: isomiso2avc1mp41
 encoder: Lavf56.4.101
Audio: no audio
VO: [opengl] 1920x1080 => 1920x1080 yuv420p
V: 00:00:07 / 00:02:55 (4%)


Exiting... (Quit)

$mpv Audio_on_2014-10-02_torsdag_at_22\:22\:35.wav
Playing: Audio_on_2014-10-02_torsdag_at_22:22:35.wav
[stream] Audio (+) --aid=1 (pcm_s16le)
File tags:
 encoder: Lavf56.4.101
Video: no video
AO: [alsa] 48000Hz stereo 2ch s16
A: 00:00:08 / 00:02:57 (4%)