[googledrive] Add support for subtitles

[nyuszika7h]

Please follow the guide below

• 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 that [x])
• Use Preview tab to see how your issue will actually look like

---

Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2017.07.09. If it's not read this FAQ entry and update. Issues with outdated version will be rejected.

• I've verified and I assure that I'm running youtube-dl 2017.07.09

Before submitting an issue make sure you have:

• At least skimmed through README and most notably 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)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

---

The following sections concretize particular purposed issues, you can erase any section (the contents between triple ---) not applicable to your issue

---

If the purpose of this issue is a bug report, site support request or you are not completely sure provide the full verbose output as follows:

Add -v flag to your command line you run youtube-dl with, copy the whole output and insert it here. It should look similar to one below (replace it with your log inserted between triple ```):

[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', '--ignore-config', '--write-sub', 'https://drive.google.com/file/d/0B0Pcx5-LUToEblNxcXRPWmtmS00/view', '-o', 'Ha felhő lehetnék E20.%(ext)s']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2017.07.09
[debug] Python version 3.6.1+ - Linux-4.4.0-43-Microsoft-x86_64-with-Ubuntu-17.04-zesty
[debug] exe versions: ffmpeg 3.3.2-1, ffprobe 3.3.2-1, rtmpdump 2.4
[debug] Proxy map: {}
[GoogleDrive] 0B0Pcx5-LUToEblNxcXRPWmtmS00: Downloading webpage
[debug] Invoking downloader on 'https://r4---sn-c0q7lne6.c.docs.google.com/videoplayback?id=851eb6773c9a6ff5&itag=18&source=webdrive&requiressl=yes&mm=30&mn=sn-c0q7lne6&ms=nxu&mv=u&pl=21&sc=yes&ttl=transient&ei=nXZiWbLkKonFqgWjz4boDw&driveid=0B0Pcx5-LUToEblNxcXRPWmtmS00&mime=video/mp4&lmt=1499099742696479&mt=1499625042&ip=84.2.121.30&ipbits=0&expire=1499639517&cp=QVJOQUdfWFVPSFhNOkxoNkR2Tk5NTUhw&sparams=ip%2Cipbits%2Cexpire%2Cid%2Citag%2Csource%2Crequiressl%2Cmm%2Cmn%2Cms%2Cmv%2Cpl%2Csc%2Cttl%2Cei%2Cdriveid%2Cmime%2Clmt%2Ccp&signature=70F7ADDD5EF99714F7B845E73866DAEF28648FAB.13576CE76EE0231268989BFFEFB65B82469414A2&key=ck2&app=texmex'
[download] Ha felhő lehetnék E20.mp4 has already been downloaded
[download] 100% of 330.39MiB

---

Description of your issue, suggested solution and other information

This video has Hungarian subtitles, but youtube-dl doesn't recognize them.

Subtitle URL: https://drive.google.com/timedtext?authuser=0&id=0B0Pcx5-LUToEblNxcXRPWmtmS00&vid=851eb6773c9a6ff5&hl=en-US&v=0B0Pcx5-LUToEblNxcXRPWmtmS00&type=track&lang=hu&name&kind&fmt=1

[parmjitv]

Hi @nyuszika7h,

As @dstftw has noted, the extractor for Google Drive videos should be updated to include any available captions. I will give this one a shot if no one has any objections.

How did you deduce the URL for the Hungarian subtitles? I was not able to find a reference for this anywhere in the page source for this video.

Cheers,

Parmjit V.

[nyuszika7h]

I just loaded the page in Firefox and used the network request logger. There's a request to some captions.js before that, which may be helpful. I'll also take a closer look at it.

[parmjitv]

@nyuszika7h - Cool. I will look into that further as well. Basically I am looking for a generic URL that can be used to extract the caption data for a given video, Hungarian or otherwise. If such a URL exists we should be able to use it in the extractor to fetch the subtitle info.

@siddht1 - Thank you! Did you have to convert the XML file manually?

I believe youtube-dl supports both SRT and VTT file formats for captions - please correct me if I am mistaken?

[parmjitv]

@siddht1 - OK. I have figured out the URL schema for the captions and should have a new PR ready in the next day or so.

I am going to compose the subtitles as SRT files, using the example file you have provided as a template. There are some utilities already available in the codebase to help us out - if this does not work we can look at using the VTT format as you suggest instead.

[nyuszika7h]

youtube-dl already supports TTML (XML) subtitles, there is no need for additional conversion. Perhaps xml could be added to the file extension list, though.

[remitamine]

google already serve vtt and ttml subtitles, there is no need for any kind of conversion(for now).
automatic generated subtitles are also available.

[remitamine]

vtt subtitle: https://drive.google.com/timedtext?vid=851eb6773c9a6ff5&v=0B0Pcx5-LUToEblNxcXRPWmtmS00&type=track&lang=hu&name&kind&fmt=vtt
english generated vtt subtitle: https://drive.google.com/timedtext?vid=851eb6773c9a6ff5&v=0B0Pcx5-LUToEblNxcXRPWmtmS00&type=track&lang=hu&name&kind&fmt=vtt&tlang=en
ttml subtitle: https://drive.google.com/timedtext?vid=851eb6773c9a6ff5&v=0B0Pcx5-LUToEblNxcXRPWmtmS00&type=track&lang=hu&name&kind&fmt=ttml
french generated ttml subtitle: https://drive.google.com/timedtext?vid=851eb6773c9a6ff5&v=0B0Pcx5-LUToEblNxcXRPWmtmS00&type=track&lang=hu&name&kind&fmt=ttml&tlang=fr

[parmjitv]

Thanks for the info everyone! I will use the caption URLs already made available to us and see what happens.

What happened to @siddht1 - I no longer see his contributions in this thread?