Feature Request - Download all embedded videos when they're from multiple sources

[andonagio]

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• [ x] At least skimmed through the README, most notably the FAQ and BUGS sections
• [ x] Searched the bugtracker for similar issues including closed ones
• [ x] Checked that provided video/audio/playlist URLs (if any) are alive and playable in a browser

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I had submitted bug request #17265, which asked if I could download both an embedded YouTube video and an embedded Vimeo video at once from the same webpage. I was told this was not possible, so I'd like to make this a feature request. In fact, I'd like to be able to download all embedded videos at once from a single webpage regardless of how many different sources there are, so long as each source is supported by youtube-dl.

Please let me know if this would be possible. Thank you for your time!

[Psycho9999]

Would this feature enable me to download all the Limelight media from https://www.learningstrategies.com/auraseeingfest18/event?aff=4653 or should I make a separate issue for it? Currently, youtube-dl only gets me the first audio file.

$ youtube-dl -v 'https://www.learningstrategies.com/auraseeingfest18/event?aff=4653'
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'https://www.learningstrategies.com/auraseeingfest18/event?aff=4653']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2018.08.22
[debug] Python version 2.7.12 (CPython) - Linux-4.15.0-29-generic-x86_64-with-Ubuntu-16.04-xenial
[debug] exe versions: ffmpeg 2.8.14-0ubuntu0.16.04.1, ffprobe 2.8.14-0ubuntu0.16.04.1
[debug] Proxy map: {}
[generic] event?aff=4653: Requesting header
WARNING: Falling back on generic information extractor.
[generic] event?aff=4653: Downloading webpage
[generic] event?aff=4653: Extracting information
[download] Downloading playlist: Aura Seeing Fest18|Event
[generic] playlist Aura Seeing Fest18|Event: Collected 1 video ids (downloading 1 of them)
[download] Downloading video 1 of 1
[limelight] 9d0b5e7f88344f6b8fdf31e99a361584: Downloading PlaylistService getPlaylistByMediaId JSON
[limelight] 9d0b5e7f88344f6b8fdf31e99a361584: Downloading API properties JSON
[limelight] 9d0b5e7f88344f6b8fdf31e99a361584: Downloading PlaylistService getMobilePlaylistByMediaId JSON
[limelight] 9d0b5e7f88344f6b8fdf31e99a361584: Checking http URL
[limelight] 9d0b5e7f88344f6b8fdf31e99a361584: Checking http URL
[debug] Default format spec: bestvideo+bestaudio/best
[debug] Invoking downloader on u'http://s2.content.video.llnw.net/smedia/4151ef31c72249669b8e1da5cf8c3010/qP/h_XQ5z4jnomXoBl8cxJtxIMH3A84Y0tAJ6GxDTwSk/aura-seeing-2018-binge-control-how-to-use.mp3'
[download] How to Use the Aura Seeing Fest!-9d0b5e7f88344f6b8fdf31e99a361584.mp3 has already been downloaded
[download] 100% of 6.74MiB
[download] Finished downloading playlist: Aura Seeing Fest18|Event