Usage :
Simple guide for video compression :
import pImage
input_video_path = r"foo/myfoovideo.seq"
output_video_path = r"bar/myconvertedfoovideo.avi"
converter = pImage.Standard_Converter(input_video_path, output_video_path)
converter.start()Implement progressbar for files of over 100 frames.
Once finished, the script will display Done in console
Under the hood :
It automatically selects a reader and a writer depending on the extension of your input and output video pathes, and performs reading and writing on different processes to maximize speed in case reading and writing are done on different hard drives. (for multi-core processors) With optionnal arguments, one can also make the converter execute any function provided to it inbetween the reader and writer to modify the images as wished. (rotation, scale, LUT ,image enhancement, CLAHE, etc..)
The writer is a class that will generate the file and work variables only at first writer.write(frame) call. That way, it avoids anticipatory declarations of width, height, data type etc at instanciation, an will still work as long as you keep feeding consistant data to the object.
Reduce RAM usage intensity for mosaics of snapped and resized videos, by using https://pythonspeed.com/articles/mmap-vs-zarr-hdf5/ ZARR instead of numpy memmaps (numpy memmaps rely on OS APIs and are not well tuneable (at least on windows) + not efficient timewise + proved to not even be usefull regarding ram as memaps starts to discharge from ram only when ram is completely saturated, making the computer practically unuseable in the background, a shame for a main station running analysis while working on something else....)