reddit videos downloading without audio

[kyleratti]

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• You will be asked some questions and requested to provide some information, please read them carefully and answer honestly
• Put an x into all the boxes [ ] relevant to your issue (like this: [x])
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Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2018.07.21

• I've verified and I assure that I'm running youtube-dl 2018.07.21

Before submitting an issue make sure you have:

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

What is the purpose of your issue?

• Question

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Full verbose output

System config: []
mirrorrequestscanner.ts:29
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'--dump-json', u'--format=mp4', u'--prefer-ffmpeg', u'--merge-output-format=mp4', u'--hls-prefer-ffmpeg', u'-v', u'https://v.redd.it/0rg5u4f2t3b11']
[debug] Encodings: locale US-ASCII, fs utf-8, out None, pref US-ASCII
[debug] youtube-dl version 2018.07.21
[debug] Python version 2.7.10 (CPython) - Darwin-17.6.0-x86_64-i386-64bit
[debug] exe versions: ffmpeg 4.0.1, ffprobe 4.0.1
[debug] Proxy map: {}
...
<end of log>

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Description of your issue, suggested solution and other information

I have also tried appending /DASHPlaylist.mpd to the v.redd.it URL as suggested in #13847 but still end up with a video that has no sound:

System config: []
mirrorrequestscanner.ts:29
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'--dump-json', u'--format=mp4', u'--prefer-ffmpeg', u'--merge-output-format=mp4', u'--hls-prefer-ffmpeg', u'-v', u'https://v.redd.it/0rg5u4f2t3b11/DASHPlaylist.mpd']
[debug] Encodings: locale US-ASCII, fs utf-8, out None, pref US-ASCII
[debug] youtube-dl version 2018.07.21
[debug] Python version 2.7.10 (CPython) - Darwin-17.6.0-x86_64-i386-64bit
[debug] exe versions: ffmpeg 4.0.1, ffprobe 4.0.1
[debug] Proxy map: {}

Not totally sure where I am going wrong here, but I'd love some help!

[dstftw]

You are requesting video only format. Don't touch --format if you have no idea what are you doing.

[kyleratti]

@dstftw A little rude, but I am confused because every other video service I've fed youtubedl so far seems to work fine except for v.redd.it.

[kyleratti]

Oh - is this due to reddit separating its audio and video streams?

[dstftw]

Reddit serves only audio-only and video-only files. As already said you are requesting video-only part without specifying audio and muxing.

[kyleratti]

I didn't mean that comment as in the library was malfunctioning, I was more-so asking if that's the reason I'm seeing the behavior I questioned above.

I'm sure you get a ton of stupid requests all day long and I'm sure that's overwhelming as a volunteer maintaining a large public project, but you're coming off overly-aggressive on this side of the screen. I read the documentation on --format but was not clear that only specifying a video format meant it would ignore audio completely. Sorry but thanks for all you do anyway.

[dstftw]

Well, sorry if this sounds too rude but this is the only effective way to force "copy-paste" users (wich is the majority) to use the defaults instead of some flawed broken command lines copied from some fancy blogs on the internet. The defaults work properly most of the time, if something does not work chances are your format selection is incorrect.