python-bestsource 1.1.0

Python helpers to manipulate video from vapoursynth

python-bestsource

A library helper for producing and manipulating videos with audio support in vapoursynth using bestsource

Current state

Version 1.1 fixes the bug occuring in last trimmed part that needed end clamping.Big thank to myrsloik !

Sound is working with vspreview as soon as Track1 is selected in the Playback sub panel hidden by default and play is triggered for a video that has sound. I provide a test video in test/ and two examples scripts

trim.vpy:

Shows how trim is handled with video that has sound - the player I used is a forked release of vspreview 0.7.1 is available here is for users using a still supported python 3.10 version as ubuntu 22.04 user, install it using the git way.

frame.vpy

Show frame props of a clip different ways. Under scite you can trigger vspreview with [F5] or compile - In test I let you the scite config file.

aegisub audio tests support in vapoursynth

This requires vapoursynth fork from Arch1t3cht and the use of peagisub for vapoursynth plugin dir configuration. Two subtitles files are provided (1+2) and a probe system (3):

(1) Open tests/VTS_01_1-trim100.ass then tests/VTS_01_1-trim100.vpy delivers video as channel 0 and audio as channel 1 this is not supported by current release that disable Open AUdio from Video feature.

As I did not find a way to know which type of channel audio or video is requested. I opened thus a Request for feature

(2) Open tests/VTS_01_1-trim100-video-audio.ass then tests/VTS_01_1-trim100-video.vpy delivers video as channel 0 then tests/VTS_01_1-trim100-audio.vpy delivers audio as channel 0 (separately in time)

this works if you ensure plays does not goes outside boundary ie frame 101 else you will be flooded by popups. Play and seeking work fine and did not stall in middle there is just a minor problem with the horizonthal zoom for audio

Installation

as local user

pip3 install -U python-bssource

for all

sudo pip3 install python-bssource

For those who want to bridge to arch1tech's aegisub fork, use my lua helper peagisub to get the path of the vapoursynth plugin needed by aegisub_vs.py.

History

1.1.0 - Trim with video that has audio works in both aegisub and vspreview! 1.0.0 - First release

Contributing

Feel free to add other object and fixes.

Development

Compile .whl

$ ./package.sh

Upload to PyPI

1. Create an API Token from the Web UI. (Edit your ~/.pypirc with the generated token.)
2. Install Twine

$ python3 -m pip install --user --upgrade twine

3. Build the wheel bundle (.egg no more recognized)

$ sudo rm -rf dist/&sudo rm -rf build&sudo python3 setup.py bdist_wheel

4. Upload the bundle

$ python3 -m twine upload dist/*

Note: The upload to PyPI is currently assured by GitHub Actions.

Release

1. Increase the version number in setup.py.
2. Commit and push.
3. Create a new tag in GitHub to trigger the CI pipeline.