Techniek dingen

Tech things. In English. For Google. Disclaimer applies.

Merge/join video files, GoPro, Git2 etc. without encoding

Dear peoples, here is a batch script to merge(concatenate) your action cam video files into one file without going through the process of re-encoding the whole thing.

This especially usefull for actioncam footage, like GoPro, Gitup Git2, SJCam, etc.

The script makes use of FFmpeg, so make sure you download it first:

set path2exe="C:\Program Files\ffmpeg-20160813-6612d04-win64-static\bin\ffmpeg.exe"
(for %%i in (*.mp4) do @echo file '%%i') > list.txt
%path2exe% -f concat -i list.txt -c copy output.mp4
del list.txt

  1. Paste this code in Notepad
  2. Change the path2exe parameter to the path where your ffmpeg.exe file is
  3. Change .mp4 to the filetype that you ant to merge
  4. Save the script as xxxxx.bat, and place it next to the files you want te merge.
  5. Make sure theat there is enough free space on your hard drive to save the file
  6. Double click the .bat file and wait :-)

Hope this is usefull!

Credits for the script go to  0012012, see his original post here.


Batch Rename in Mac OS X, using Automator

Batch rename in Mac OS X

Basically, I made a stand-alone app, that renames items you have selected. So you can either drop the items onto the app in your dock, or select the items and then run the app. There’ll probably be a lot of people out there who did the same and posted about it on the web, but probably slightly different.

Here is a download to the Batch file.

If you don’t like downing small app’s from small unknown bloggies, here’s how you can create your own batch rename in Mac OS X. In 5 minutes. Continue reading Batch Rename in Mac OS X, using Automator

MacBook DVD drive fix guide

Macbook DVD drive fix

The optical drive in my MacBook Pro has been malfunctioning for a very long time. Starting with errors when burning dvd’s, then failing to burn cd’s and eventually failing to do quite anything but spit out discs after I insert them. When I wanted to install Windows 7 as dual-boot option, I found that it was highly inconvenient to lack a working optical drive. I’d have to get a disk image from the dvd, restore it to a partition on my mac, try to boot from there, only to find out that that won’t work for reasons with bootsectors and other stuff.

No, I just needed a working optical drive. Continue reading MacBook DVD drive fix guide

MagSafe Plug repair guide

In this MagSafe Plug repair guide I’ll, obviously, tell you how to fix a T-shaped MagSafe plug. :-) Note that you have to be carefull. With another(3rd party mac PSU) I managed to break my left I/O board(at least, the charge controller on it).

Lets start of with the plug:

Magsafe plug - Magsafe plug repair guide

You see the cable broke off just next to the block. To fix this, we’ll have to open up the plug. Open it up? Yes, you’ll be surprised how much electronics is in there. Continue reading MagSafe Plug repair guide

Reset Macbook Pro LED backlight: solve dark bands on the screen

Reset Macbook Pro LED backlight

Here is the magic key command to reset Macbook Pro Led Backlight:


You can use this key command to (temporary) fix the problem of dark bands showing on the screen.  Note that the screen will go black, just press any key to wake it up again.

I had this problem, and it took me a while to find out I didn’t have to replace the led inverter board, but could just hit this key command every now and then when the problem’s there.

Here’s a link to the official Apple page.