Fixed Multi Threaded m3u8 Download and added check if file exists before DL

[dymattic]

made quite some changes to the multi threaded downloading of m3u8 playlists.
Heavily inspired by this project.

Requires ffmpeg for mergin downloaded parts now.

[dymattic]

Downloaded files without audio, needs more work

[dymattic]

OK Multi threaded m3u8 DLs work with audio and correct qualit now :D

[sdaqo]

@dymattic can we avoid using ffmpeg to merge the files, since it is an external program? I guess you used it for merging audio and video? How about we try someting like this its a python libary not using external programs.

[dymattic]

@dymattic can we avoid using ffmpeg to merge the files, since it is an external program? I guess you used it for merging audio and video? How about we try someting like this its a python libary not using external programs.

Yea you're right about that.
Isn't the ffmpeg method I use also a python library? Or is it just a wrapper for ffmpeg?

[sdaqo]

yea you're right about that.
Isn't the ffmpeg method I use also a python library? Or is it just a wrapper for ffmpeg?

Its just a wrapper and executes a process.
And the libary what I pointed out also uses ffmpeg, I got that wrong, but it installs it automatically, this is what it says on their page:

MoviePy depends on the software FFMPEG for video reading and writing. You don’t need to worry about that, as FFMPEG should be automatically downloaded/installed by ImageIO during your first use of MoviePy (it takes a few seconds). If you want to use a specific version of FFMPEG, you can set the FFMPEG_BINARY environment variable See moviepy/config_defaults.py for details.

I think we should prefer this methode over using the ffmpeg lib.

[dymattic]

yea you're right about that.
Isn't the ffmpeg method I use also a python library? Or is it just a wrapper for ffmpeg?

Its just a wrapper and executes a process. And the libary what I pointed out also uses ffmpeg, I got that wrong, but it installs it automatically, this is what it says on their page:

MoviePy depends on the software FFMPEG for video reading and writing. You don’t need to worry about that, as FFMPEG should be automatically downloaded/installed by ImageIO during your first use of MoviePy (it takes a few seconds). If you want to use a specific version of FFMPEG, you can set the FFMPEG_BINARY environment variable See moviepy/config_defaults.py for details.

I think we should prefer this methode over using the ffmpeg lib.

You are right, switched to using ffmpeg via moviepy now 👍

[sdaqo]

Ok, nice! Thanks for the PR.