Thanks a lot for such a great example of flask and yt-dlp. I am a Flutter developer. I was thinking to make a downloader app with the help of yt-dlp. The problem is yt-dlp is a python program and you can not run it in flutter. Moreover you can not run its executable file in Android or ios. So someone on internet mentioned that you can create yt-dlp api on your cloud-platform using flask and then you can make get and post requests to that api and get a working downloader for Android, iOS, Windows, Linux and MacOS (Flutter supports all these platforms). But here comes major problems.

1. If I send a url to yt-dlp api from my app. YT-DLP will start downloading file on my cloud platform and not on my mobile app.
2. I just want that yt-dlp provide my direct download url of video in json response. So that I directly download the video file on my local mobile app instead of cloud.
3. Also I do not know the workflow of yt-dlp. How a video's audio and video track is downloaded. is it same url or different url.
4. How I will convert the downloaded file to mp4.

It would be great if you guide me.

• [x] Users can know the size of the file 0c4b53099b88ff8f6cfd33ae84efccf64841e789 5461e49ff5222bab1d430489f5f5a3d53fe22d37
• [x] Users can know whether audio is available or not 478c524c3f2fe686b3b9cd70f582b921eefa9cc0