About Products Support FAQ Blog

How to edit MP4 file on Mac



  By Olga Krovyakova - March, 29 2019

SolveigMM Video Splitter for macOS is a powerful video editor that helps to losslessly edit MP4 files on macOS. In this article we will show you how easily to edit your MP4 file with this video editor.


TRY Video Splitter for MAC


Basic Terms

Understanding of some basic terms used in this guide will help you to start using SolveigMM Video Splitter in most comfortable way.

Marker is a constituent part of a fragment consisted of two markers: start and end. Markers can be added or deleted. Such operations as deleting and positioning are applied to the selected markers only.
Video Splitter has two types of markers, the Beginning Marker of Begining and End Marker

Below you will find the table with the view of the Marker of Beginning and Marker of End in the selected and not selected state.
The blue color means that the marker is selected. If marker is not selected it has the white color.

Selected state
Not selected state
Beginning Marker End Marker  Beginning Marker End Marker 
marker1 marker2 marker3 marker4

Fragment is a part of video (or audio) file limited by two markers to be removed or kept in a final movie, e.g. commercial block you want to cut off.

Video Splitter has two modes of editing: "Cut" and "Keep".
By default there is "Cut" mode used. It means that the selected by user fragements will be cutted out. 
The cutted out fragment is usually highlighted with the gray color.

You can change the "mode" of editing to save fragments by selecting the accordinary menu in the combobox list. 


You can see sample kept and cutted out fragments in the selected and not selected state below.

Examples of fragments are provided in table below:

Selected state
Not selected state
Keept fragment Cut out fragment Keept fragment Cut out fragment
fragment1 1 fragment2 1 fragment3 1 fragment4 1

Control Panel contains main tools for file processing.


Description of window elements is provided in table below.

Window Element Description Shortcut Key
begin marker
Add Begin Marker: Add a new start marker to the current slider cursor position.
end marker
Add End Marker: Add a new end marker to the current slider cursor position.
Set audio silence: allows to set audio silence for the chosen fragment
save btn

Save: Start trimming or batch processing (if there are any tasks in the batch queue) 

Ctrl + T
browse out

Browse output file

left marker
Left marker cursor time position. You can edit this value manually
right marker
Right marker cursor time position. You can edit this value manually 
Zoom: Increase or Decrease  the slider timeline resolution to make editing neighbouring markers more comfortable  (*)

NumPad +

NumPad -

story board on-ff

Story board Off/On: turn off/on the story board

sound on-ff
Audio waveform On/Off: turn off/on the audio waveform  

Get screenshot: allows to make the screenshot of the chosen video frame

Browse screenshot: allows to open folder with the created screenshot

Cut\Keep: Allows selecting the mode of editing. "Cut"  - to delete unnecessary fragments, e.g. marking commercials for removing, "Keep" - to select desired fragements for saving.

(*) - To view timeline areas after Zoom In you can use a scroll bar (below a timeline slider) and "Alt + Left arrow" and "Alt + Right Arrow" hot keys.

Cutting out the fragments

By default there is the "Cut" mode selected in Video Splitter.

Assume that we would like to delete two fragments from the input original file (e.g. to remove unwanted scenes) in one pass and in frame accurate mode.

1. Open our input file in Video Splitter. There are several ways to do this: you can drag-drop the selected file from any folder to "Media" list, click on the "Add Media Files" button of the "Media" list window, click the "+" button of "Media" or right mouse click on the "Media" area and select "Add Files" button.

2. In the opened standard dialog window select file for editing.

3. Then click the "Open" button.


Figure 1

Select now the fragments to be deleted in the final movie. At first you should mark this fragments using Begin and End Markers of Video Splitter. 

4. Set the fragments Begin: find the beginning of the first fragment using Video slider or Ctrl + right and Ctrl + left hot keys.

For easy selecting of the right fragment you can change the scale of Video Splitter's visial timeline using this control: reset-zoom.

To change the scale of the timeline move the slider of "Zoom" button and choose the desired scale or simply click on the "Zoom" control and select the mode in the list. The scale of the visial timeline will be enlarged and so you can find easily the needed frame of the fragment. To change the scale of the timeline you can also rotate the mouse wheel.

Navigate with help of bar to find the frame of beginning the scene you would like to be deleted.


Figure 2

5. Add the Begin Marker by clicking the "Add Begin Marker" button on the splitting controls bar.


Figure 3

6. Add the End marker of the fragment using video slider and "Add End Marker" button.


Figure 4

Note: to delete the marker select it and press the "Delete" hot key. 

7. Repeat steps 5, 6 to select other fragments to be cutted out.


Figure 5

8. To start editing progress click the "Save" button. In the opened "Save" dialog window select the folder for saving, change the name for output file if necessary and click the "Save" button.


Figure 6

In Video Splitter window you will see the current progress of file processing. Finally, you will get the file without two fragments that were selected as "cut off". 


Click the "Browse output file" button (browse out) to open the folder with the output file.


To save the desired fragments

1. Open the video file in Video Splitter the same way as it was described at the point#1 of the previous section.

2. To save only some fragments from the video file switch the editing mode to "Keep".


Figure 7

3. Set the beginning and end of the first fragment using "Add Begin Marker" and "Add End Marker" buttons.


Figure 8


Figure 9

4. Repeat step 3 if you wish to save more fragments from the video file.


Figure 10

5. Click the "Save" button to start the editing. In the opened "Save" dialog window choose the output folder for saving, type in the name for the output file and click the "Save" button.


Figure 11

The progress window will be shown. Now you can view the output file - just click the "Browse output file" button (browse out) to see the resulted file in the selected folder.

Good luck with your video editing projects!


TRY Video Splitter for MAC



 About the author

imageOlga Krovyakova is the Technical Support Manager in Solveig Multimedia since 2010.

She is the author of many text and video guidelines of company's products: Video Splitter, HyperCam, WMP Trimmer Plugin, AVI Trimmer+ and TriMP4.

She works with programs every day and therefore knows very well how they work. Сontact Olga via support@solveigmm.com if you have any questions. She will gladly assist you!