My_vid_stream = ffmpeg.output(my_vid_stream,output_file) # now generate the output node and write it to an output file. My_vid_stream = ffmpeg.filter(my_vid_stream, 'crop', h='iw*9/16') # finally apply the crop filter to it's upstream node and assign the output stream back to the same variable. # next to the upstream node create a new filter which does the boxblur operation per your specs. # first filter you wanted to apply is 'scale' filter. # ffmpeg.filter() takes the upstream node followed by the name of the filter, followed by the configuration of the filter assign the video stream to a new variable, we will be creating filters to only video stream, as indicated by in ffmpeg command line. This stream base_object has two properties, audio and video. # The input() returns a stream object has what is called 'base_object' which represents the outgoing edge of an upstream node and can be used to create more downstream nodes. My_vid_stream = ffmpeg.input(input_file, 'lavfi') So you'd represent this in ffmpeg-python terms as # create a stream object, Note that any supplied kwargs are passed to ffmpeg verbatim reading it tells me that you want to scale the video and then apply the boxblur filter followed by crop. This function returns the stream downstream to the filter node you just created.įor example: In the example ffmpeg command line from the question. This is followed by all the filter conditions. Tip2: In general, ffmpeg.filter() takes the filter name as first param. Understanding the ffmpeg command line syntax. Tip1: A pre-requisite for using the library to 'encode any filter' is but here's an approach that worked for me.

Ffmpeg filter scale