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+ This will play two input videos side by side while also applying the temporal difference filter to them
+ffmpeg -i input01 -i input02 -filter_complex "[0:v:0]tblend=all_mode=difference128[a];[1:v:0]tblend=all_mode=difference128[b];[a][b]hstack[out]" -map [out] -f nut -c:v rawvideo - | ffplay -
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- ffmpeg
- starts the command +
- -i input01 -i input02
- Designates the files to use for inputs one and two respectively +
- -filter_complex
- Lets FFmpeg know we will be using a complex filter (this must be used for multiple inputs) +
- [0:v:0]tblend=all_mode=difference128[a]
- Applies the tblend filter (with the settings all_mode and difference128) to the first video stream from the first input and assigns the result to the output [a] +
- [1:v:0]tblend=all_mode=difference128[a]
- Applies the tblend filter (with the settings all_mode and difference128) to the first video stream from the second input and assigns the result to the output [b] +
- [a][b]hstack[out]
- Takes the outputs from the previous steps ([a] and [b] and uses the hstack (horizontal stack) filter on them to create the side by side output. This output is then named [out]) +
- -map [out]
- Maps the output of the filter chain +
- -f nut
- Sets the format for the output video stream to Nut +
- -c:v rawvideo
- Sets the video codec of the output video stream to raw video +
- -
- Tells FFmpeg that the output will be piped to a new command (as opposed to a file) +
- |
- Tells the system you will be piping the output of the previous command into a new command +
- ffplay -
- Starts FFplay and tells it to use the pipe from the previous command as its input. +
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+ Example of filter output
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