Periscope / pscp.tv video doesn't download correctly

[grahammitchell]

Please follow the guide below

• I've verified and I assure that I'm running youtube-dl 2017.08.13
• At least skimmed through the README, most notably the FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones

What is the purpose of your issue?

• Bug report (encountered problems with youtube-dl)

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[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'https://www.pscp.tv/ringer/1ZkKzOpWZdvGv?t=28']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2017.08.13
[debug] Python version 2.7.13 - Linux-4.10.0-32-generic-x86_64-with-Ubuntu-17.04-zesty
[debug] exe versions: avconv 3.2.4-1build2, avprobe 3.2.4-1build2, ffmpeg 3.2.4-1build2, ffprobe 3.2.4-1build2, rtmpdump 2.4
[debug] Proxy map: {}
[periscope] 1ZkKzOpWZdvGv: Downloading JSON metadata
[periscope] 1ZkKzOpWZdvGv: Downloading JSON metadata
[debug] Default format spec: bestvideo+bestaudio/best
[debug] Invoking downloader on u'https://prod-video-us-west-1.periscope.tv/1LLYuLVOrPmck14MmAEOxtfUCA9hw9vwFqT9C69se3quKBxhWTmsHKA90j6CCKgCtLva-ElNu5aLkLyTaWCKYw/replay/us-west-1/periscope-replay-direct-prod-us-west-1-public/master_16944063927431659363.m3u8'
[hlsnative] Downloading m3u8 manifest
[hlsnative] Total fragments: 3
[download] Destination: The Ringer - #TalktheThrones Episode 5 - Breaking down 'Eastwatch'-1ZkKzOpWZdvGv.mp4
[download] 100% of 456.85KiB in 00:00
[debug] avconv command line: avprobe -show_streams 'file:The Ringer - #TalktheThrones Episode 5 - Breaking down '"'"'Eastwatch'"'"'-1ZkKzOpWZdvGv.mp4'
<end of log>

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If the purpose of this issue is a site support request please provide all kinds of example URLs support for which should be included (replace following example URLs by yours):

• Single video: https://www.pscp.tv/ringer/1ZkKzOpWZdvGv?t=28

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Description of your issue, suggested solution and other information

This ought to download the video, but it actually downloads an EXTM3U playlist and gives it an mp4 extension. The playlist contains references to 4638 chunks.

[grahammitchell]

Yay, thanks!