The timeline allows you to control what frame in a sequence or movie is
It can be toggled on and off by using the F3 hotkey.
The slider allows you to easily jump around the video sequence being
displayed. When in EDL mode (see EDL), the timeline will also
display each movie sequence as a video segment. The current
segment will be highlited.
When displaying sequences, the cache for the sequence is displayed as a green bar below the timeline.
/ Frame Display
button refers to the current frame being displayed. Clicking
it will toggle between displaying the timeline and frame information as
either frames, time or timecode.
The playback controls function very similarly to those in your VCR or
Stereo. They allow you to, from left to right: go to the
beginning of the movie, play the movie backwards, go back a single
frame, pause the playback, go forwards one frame, play the movie
forwards and go to the end of the movie.
Unlike your VCR, there is no fast-forward or rewinding controls.
That functionality can be obtained by changing the frame rate
then playing the movie.
If you play a sequence of images, playback will not be smooth at first.
mrViewer will first try to cache all the images in memory
playback. The images cached are displayed with a green line below the sequence frames. If you run out of memory or you start swapping, you
might not be able to play back the sequence smoothly.
Smooth reverse playback of movie files is largely dependant on
the codec used in the movie file and movies without audio or with audio turned off work much better.
In addition to the play controls, mrViewer supports scrubbing (or moving quickly from one frame to the next in any direction). This was activated by using SHIFT+Mouse Movement Left and Right. However since windows 8 came along, this was changed to SHIFT, then Mouse Movement Left and Right and CTRL to exit. If you have some old preferences you might need to toggle of the Shift button in the Hotkeys Preference to get the new behavior.
The FPS (Frames per Second) control allows you to adjust the speed of
playback. This allows you to play the sequence in slow
at several times its normal speed.
The audio control can be used to switch between different audio tracks
by clicking on the A button.
In addition, the audio volume can be controlled with the
next to it. Note that, depending on your platform, changing
volume may effect all other applications that use sound. On Linux, you can have more control using a mixer utility like kmix or pavucontrol.
Finally, the S
and E inputs
allow you to change the start and end of the timeline. This
no effect on changing the actual length of the movie or image sequence,
and is only provided for playback looping and display purposes.