DDL
The basic process:
- Copy the download link
- Put it in the stream button
You can't play videos from some sources like Google drive, Mega etc. For this example, we will use Tokyo Insider. You can get more good Direct Download websites here.
IRC
Read the full guide on IRC. When you start the download, a file will be created in the download destination. If you open the file while it is still downloading, you can play the downloaded sections. Technically, you are only able to play the parts that have been downloaded, so you cannot skip ahead and play the non-downloaded parts. This method works because the downloader downloads the file sequentially.
Torrent
You can use qBittorrent to stream a video you're currently downloading. For this, check the "Download in sequential order" and go to the containing folder. Now open the file and it will play as more chunks are downloaded.
TorrServer & WebTorrent can also be used to stream torrents.