Download individual stream files
ffmpeg -i <input-file> -c <codec> <output-file>
Start with the ffmpeg command
-i = input file
<input-file> either a stream url or local file
-c = codec to be used
<codec>\= I always use copy to use the same codec as the stream, or you can specify any other codec you want
<output-file> = the filename you want to save
Trim the parts you don't want
ffmpeg -ss <hh:mm:ss> -i <input-file> -to <hh:mm:ss> -c <codec> <output-file>
Start with the ffmpeg command
-ss = start time of the video to trim
<hh:mm:ss> = must be in the format of hours:minutes:seconds
-i = input file
<input-file> either a stream url or local file
-to = total length of clip time, this can be confusing at first because you need to calculate the elapsed time of the clip. e.g. If you want to trim a clip that begins at 01:23:33 (one hour, 23 minutes, 33 seconds) and you want the video trimmed to 01:23:55 (one hour, 23 minutes, 55 seconds), the value of to would be 00:00:22 (22 seconds elapsed time)
-c = codec to be used
<codec>\= I always use copy to use the same codec as the stream, or you can specify any other codec you want
<output-file> = the filename you want to save, make sure you create a copy and don't overwrite the original file you are trimming
Save all your files with a consistent naming pattern to easily collect them for future use
for f in <pattern>; do echo "file '$f'" >> <output-file>; done
let's write a bash script to easily create a playlist of the files you want to concat
for <variable> in is a bash loop to find all instances of the pattern given
f is a variable name for "file", it could be anything
<pattern> is a regex pattern of the filename e.g. *title-mm-dd-yy*
do begins the looping process
echo "file '$f'" tells bash to write the text "file <filename>" from the variable f to stdout (the terminal)
>> is a direction operator in Linux to write a file. When two arrows are present, it signifies append to the existing file
<output-file> should be a text file e.g. files.txt
<semi-colon> is used to end the previous command
we need to finish with a done command to finish the loop
This will create a files.txt with a playlist of the matching files
file 'game-01-01-23_1.mp4'
file 'game-01-01-23_2.mp4'
file 'game-01-01-23_3.mp4'
file 'game-01-01-23_4.mp4'
Concat your files
ffmpeg -f concat -i <input-file> -safe 0 -c <codec> <output-file>
Start with the ffmpeg command
-f\= indicates to ffmpeg to list each file for concatenation
concat = concatenate command
-i = input file
<input-file> either a stream url or local file
-safe 0 = dictates unsafe file names should be ignored, this is mainly used to allow relative paths
-c = codec to be used
<codec>\= I always use copy to use the same codec as the stream, or you can specify any other codec you want
<output-file> = the filename you want to save, make sure you create a copy and don't overwrite the original files you are using to create the final version