I promoted this question out of Staging Ground, because the question was clear and well-stated, and they included a GitHub repository link that included a minimal but functional reproducing case, along with the MP4 file that was required to run the test.
Moments after I promoted it, it had already gathered a downvote and a complaint that the code was not present in the post. I find this disingenuous. In order to run the test, you're going to have to fetch the GitHub repository anyway, and looking at the code in GitHub is no harder than looking at it in the post. The asker even included a test video, thus making a complete, runnable demonstration.
Does nitpicking really provide any value, when the asker has done so many things correctly?