[tumblr] Format extraction enhancement

[Hrxn]

• I've verified and I assure that I'm running youtube-dl 2017.11.15

• At least skimmed through the README, most notably the FAQ and BUGS sections

• Searched the bugtracker for similar issues including closed ones

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• Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

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Issue:

Format extraction for tumblr.com does not fetch all available formats, maybe some site change recently?
Regardless, youtube-dl only ever finds and extracts a 720p variant, even if a better resolution is available.

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Current format listing:

PS E:\Test> youtube-dl --verbose --ignore-config -F "https://burn-and-fade.tumblr.com/post/167509718448/1080p-mp4"
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--verbose', '--ignore-config', '-F', 'https://burn-and-fade.tumblr.com/post/167509718448/1080p-mp4']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2017.11.15
[debug] Python version 3.4.4 - Windows-10-10.0.16299
[debug] exe versions: ffmpeg 3.4, ffprobe 3.4
[debug] Proxy map: {}
[Tumblr] 167509718448: Downloading webpage
[Tumblr] 167509718448: Downloading iframe page
[info] Available formats for 167509718448:
format code  extension  resolution note
sd           mp4        480p
hd           mp4        720p       (best)
PS E:\Test>

Running youtube-dl and testing the result:

PS E:\Test> youtube-dl --ignore-config --verbose "https://burn-and-fade.tumblr.com/post/167509718448/1080p-mp4"
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--ignore-config', '--verbose', 'https://burn-and-fade.tumblr.com/post/167509718448/1080p-mp4']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2017.11.15
[debug] Python version 3.4.4 - Windows-10-10.0.16299
[debug] exe versions: ffmpeg 3.4, ffprobe 3.4
[debug] Proxy map: {}
[Tumblr] 167509718448: Downloading webpage
[Tumblr] 167509718448: Downloading iframe page
[debug] Default format spec: bestvideo+bestaudio/best
[debug] Invoking downloader on 'https://burn-and-fade.tumblr.com/video_file/t:eWCbaVg_WFLL8B-lObiI9w/167509718448/tumblr_ozg2nsWYTW1whd2ww/720'
[download] Burn and Fade — 1080p MP4-167509718448.mp4 has already been downloaded
[download] 100% of 221.72KiB
PS E:\Test> MediaInfo '.\Burn and Fade — 1080p MP4-167509718448.mp4' | sls "Width|Height"

Width                                    : 1 280 pixels
Height                                   : 720 pixels


PS E:\Test>

youtube-dl with -g

PS E:\Test> youtube-dl --ignore-config --verbose -g "https://burn-and-fade.tumblr.com/post/167509718448/1080p-mp4"
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--ignore-config', '--verbose', '-g', 'https://burn-and-fade.tumblr.com/post/167509718448/1080p-mp4']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2017.11.15
[debug] Python version 3.4.4 - Windows-10-10.0.16299
[debug] exe versions: ffmpeg 3.4, ffprobe 3.4
[debug] Proxy map: {}
[debug] Default format spec: bestvideo+bestaudio/best
https://burn-and-fade.tumblr.com/video_file/t:eWCbaVg_WFLL8B-lObiI9w/167509718448/tumblr_ozg2nsWYTW1whd2ww/720
PS E:\Test>

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Okay, now using this link returned with -g, you can see that it redirects to this (as can be observed within the browser):

https://vt.media.tumblr.com/tumblr_ozg2nsWYTW1whd2ww_720.mp4#_=_

This URL can be changed slightly, like this:

PS E:\Test> curl -L -O "https://vt.media.tumblr.com/tumblr_ozg2nsWYTW1whd2ww.mp4"
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  248k  100  248k    0     0   248k      0  0:00:01 --:--:--  0:00:01  758k
PS E:\Test> MediaInfo .\tumblr_ozg2nsWYTW1whd2ww.mp4 | sls "width|height"

Width                                    : 1 920 pixels
Height                                   : 1 080 pixels


PS E:\Test> ls tumblr_*


    Directory: E:\Test


Mode                LastWriteTime         Length Name
----                -------------         ------ ----
-a----       16.11.2017     04:29         254614 tumblr_ozg2nsWYTW1whd2ww.mp4
-a----       16.11.2017     04:27         227044 tumblr_ozg2nsWYTW1whd2ww_720.mp4


PS E:\Test>

We now have a full 1080p file.
Just as uploaded to Tumblr.