This is a standalone python package as well as a module which is used under the hood in the Blender Power Sequencer add-on to generate better proxies to be used in Blender.
It can be installed as a standalone command line utility via PiPy: pip install [--user] bpsproxy. Note that you have to have $HOME/.local/bin included in your $PATH environment variable (on unix) if you're going to install the utility locally (using --user when executing pip).
After installing the script, get help by writing bpsproxy -h:
usage: bpsproxy [-h] [-p {webm,mp4,nvenc}] [-s {25,50,100} [{25,50,100} ...]]
[-v] [--dry-run]
[working_directory]
Create proxies for Blender VSE using FFMPEG.
positional arguments:
working_directory The directory containing media to create proxies for
optional arguments:
-h, --help show this help message and exit
-p {webm,mp4,nvenc}, --preset {webm,mp4,nvenc}
a preset name for proxy encoding
-s {25,50,100} [{25,50,100} ...], --sizes {25,50,100} [{25,50,100} ...]
A list of sizes of the proxies to render, either 25,
50, or 100
-v, --verbose Increase verbosity level (eg. -vvv).
--dry-run Run the script without actual rendering or creating
files and folders. For DEBUGGING purposes
BPSProxy requires
ffmpegffprobe
to be available in the $PATH environment variable in order to work. In case BPSProxy will catch a missing dependency it will throw a message error similar to this:
ERROR:BPS:BPSProxy couldn't find external dependencies:
[X] ffmpeg: NOT FOUND
[X] ffprobe: NOT FOUND
Check if you have them properly installed and available in the PATH environemnt variable.
~ Exiting.