Yes I know what you mean. I had lots more time before I got married, bought an ageing home, got a stepdaughter and acquired three dogs.
Your image quality is better than my Iroad 3300. When I bought it two years ago, I decided to go with the one the lower specs because of money and having more video on my Sd cards.
This is where it gets interesting and the files you provided are very helpful.
There is a substantial image quality loss on the files created compared to the source files. I see that a little on my files but its obvious on the files you provided. I thought ffmpeg was simply extracting channels but it appears to be altering something. I will have to experiment with that line in the script file, its also possible I have a dated version of ffmpeg
Your files convert faster too
In a directory, I placed you two channel file with a file coming from my Iroad.
The script 160104_023909_E1.mp4 is my file, and 20151231_132934_E2.avi is yours
Ffmpeg has a command to determine bit rate and pixels, but I am too lazy to check that
I added a line in the script to get source file size when the log file is produced.
Code:
2016-25-21 22:25:06 - Starting script
2016-25-21 22:25:06 - starting to work on 160104_023909_E1.mp4 - 1 of 2
size of source file 160104_023909_E1.mp4 is 25989526
2016-25-21 22:25:06 - Starting front channel
2016-26-21 22:26:07 - Starting rear channel
2016-26-21 22:26:27 - Finished 160104_023909_E1.mp4 - 1 of 2
2016-26-21 22:26:28 - starting to work on 20151231_132934_E2.avi - 2 of 2
size of source file 20151231_132934_E2.avi is 69413212
2016-26-21 22:26:28 - Starting front channel
2016-26-21 22:26:45 - Starting rear channel
2016-26-21 22:26:54 - Finished 20151231_132934_E2.avi - 2 of 2
My source file is 25.9 mb and yours is 69.4 mb
My file is 30 seconds, your 29.
My file is 866 kb per second, yours 2.4 mb per second
However your source avi file extracts faster than my source mp4 file
It takes 81 seconds to extract both channels from my files and 26 seconds for your files, despite having a larger file with a better image quality.
Both types of files get "past duration xxxx too large" warnings