Thanks to fonsleenaars for information about Usher API and overall info about HLS and VODs

ttvldr is a CLI tool that uses Twitch API to download VODs from Twitch and ffmpeg to process downloaded chunks in a single file. So, that's why you should download FFMpeg explicitly.

I don't use any compression because this operation is very expensive in case of time and CPU usage even with -crf 25 option or ultrafast preset (or even both of them). Even with libx265 codec.

So if you want to compress file — you should do it by hand after downloading the VOD.

Source codes does not import any third party packages so you don't need to do an extra go get if you want to make changes in code.

Since that official Twitch API does not support most of API versions that used in ttvldr — they can be closed in any moment. Keep it in mind when you will download any VODs from Twitch.tv.

If you're continuing getting errors while connecting to the server — try to run ttvldr with -debug option — it may make more clear for you if something went wrong with Twitch API or it's just errors in ttvldr itself.

You can find the latest release here. There are versions for:

• Windows (binary tested)
• GNU/Linux
• macOS

If you are experiencing any problems with a binary for any listed OS — please, contact me.

Basic usage of ttvldr is next:

ttvldr <option> <link to VOD>

Examples of usage the tool:

ttvldr https://www.twitch.tv/videos/123456789 — download a full VOD
ttvldr -start 1h2m3s -end 1h5m33s twitch.tv/videos/123456789 — download a part a of given VOD

All options you can find under with ttvldr -help command.

If you are experienced user — you can make a CPU or MEM profiles. I don't know why but I given this opportunity:

ttvldr -cpuprofile cpu.out -memprofile mem.out twitch.tv/videos/123456789