Repository: youtube-dl
Issue: Site Support Request: Discoveryplus.nl 
Labels: site-support-request

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## Checklist

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Carefully read and work through this check list in order to prevent the most common mistakes and misuse of youtube-dl:
- First of, make sure you are using the latest version of youtube-dl. Run `youtube-dl --version` and ensure your version is 2021.06.06. If it's not, see https://yt-dl.org/update on how to update. Issues with outdated version will be REJECTED.
- Make sure that all provided video/audio/playlist URLs (if any) are alive and playable in a browser.
- Make sure that site you are requesting is not dedicated to copyright infringement, see https://yt-dl.org/copyright-infringement. youtube-dl does not support such sites. In order for site support request to be accepted all provided example URLs should not violate any copyrights.
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- [x] I'm reporting a new site support request
- [x] I've verified that I'm running youtube-dl version **2021.06.06**
- [x] I've checked that all provided URLs are alive and playable in a browser
- [x] I've checked that none of provided URLs violate any copyrights
- [x] I've searched the bugtracker for similar site support requests including closed ones


## Example URLs

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Provide all kinds of example URLs support for which should be included. Replace following example URLs by yours.
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- Playlist: https://www.discoveryplus.nl/programmas/deadliest-catch
- Playlist: https://dplaysouth-vod.akamaized.net/dplaydni/215991/0/hls/10180679004/playlist.m3u8?hdnts=st=1623261207~exp=1623347607~acl=/dplaydni/215991/0/hls/10180679004/*~hmac=3b40fe65985b45e9c623ac5802c4f10b5d3caec5fc4a303004a7f71fa7fb7168


## Description

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Links directly form discoveryplus.nl doesn't work.
When provide the m3u8 url to YTDL, then no subs are show:

```
PS D:\Downloads> .\youtube-dl.exe -i https://dplaysouth-vod.akamaized.net/dplaydni/215991/0/hls/10180679004/playlist.m3u8?hdnts=st=1623261207~exp=1623347607~acl=/dplaydni/215991/0/hls/10180679004/*~hmac=3b40fe65985b45e9c623ac5802c4f10b5d3caec5fc4a303004a7f71fa7fb7168 --list-subs
[generic] *~hmac=3b40fe65985b45e9c623ac5802c4f10b5d3caec5fc4a303004a7f71fa7fb7168: Requesting header
[generic] *~hmac=3b40fe65985b45e9c623ac5802c4f10b5d3caec5fc4a303004a7f71fa7fb7168: Downloading m3u8 information
*~hmac=3b40fe65985b45e9c623ac5802c4f10b5d3caec5fc4a303004a7f71fa7fb7168 has no subtitles
```

But when looking into the M3U8 :

```
#EXTM3U
#EXT-X-VERSION:4
#EXT-X-INDEPENDENT-SEGMENTS
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="160000mp4a.40.2",LANGUAGE="eng",NAME="eng",AUTOSELECT=YES,DEFAULT=NO,CHANNELS="2",URI="exp=1623350715~acl=%2f*~data=hdntl~hmac=0f51804a00427893d2294503c4dfecd8c8b15c2c08a8855dc9b9e1e733bf56f0/1477160146-prog_index.m3u8?version_hash=569d7c64"
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="64000mp4a.40.2",LANGUAGE="eng",NAME="eng",AUTOSELECT=YES,DEFAULT=NO,CHANNELS="2",URI="exp=1623350715~acl=%2f*~data=hdntl~hmac=0f51804a00427893d2294503c4dfecd8c8b15c2c08a8855dc9b9e1e733bf56f0/1510100771-prog_index.m3u8?version_hash=569d7c64"
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="100wvtt.vtt",LANGUAGE="nl",NAME="nl",AUTOSELECT=YES,DEFAULT=NO,FORCED=NO,URI="exp=1623350715~acl=%2f*~data=hdntl~hmac=0f51804a00427893d2294503c4dfecd8c8b15c2c08a8855dc9b9e1e733bf56f0/1898817342-prog_index.m3u8?version_hash=569d7c64"
#EXT-X-STREAM-INF:BANDWIDTH=1752428,AVERAGE-BANDWIDTH=1752428,RESOLUTION=960x540,FRAME-RATE=25.000,VIDEO-RANGE=SDR,CODECS="avc1.4D401F,mp4a.40.2",AUDIO="160000mp4a.40.2",SUBTITLES="100wvtt.vtt"
exp=1623350715~acl=%2f*~data=hdntl~hmac=0f51804a00427893d2294503c4dfecd8c8b15c2c08a8855dc9b9e1e733bf56f0/520500154-prog_index.m3u8?version_hash=569d7c64
#EXT-X-STREAM-INF:BANDWIDTH=234324,AVERAGE-BANDWIDTH=234324,RESOLUTION=320x180,FRAME-RATE=25.000,VIDEO-RANGE=SDR,CODECS="avc1.42C015,mp4a.40.2",AUDIO="64000mp4a.40.2",SUBTITLES="100wvtt.vtt"
exp=1623350715~acl=%2f*~data=hdntl~hmac=0f51804a00427893d2294503c4dfecd8c8b15c2c08a8855dc9b9e1e733bf56f0/693032198-prog_index.m3u8?version_hash=569d7c64
#EXT-X-STREAM-INF:BANDWIDTH=464308,AVERAGE-BANDWIDTH=464308,RESOLUTION=480x270,FRAME-RATE=25.000,VIDEO-RANGE=SDR,CODECS="avc1.42C01E,mp4a.40.2",AUDIO="64000mp4a.40.2",SUBTITLES="100wvtt.vtt"
exp=1623350715~acl=%2f*~data=hdntl~hmac=0f51804a00427893d2294503c4dfecd8c8b15c2c08a8855dc9b9e1e733bf56f0/629141097-prog_index.m3u8?version_hash=569d7c64
#EXT-X-STREAM-INF:BANDWIDTH=861404,AVERAGE-BANDWIDTH=861404,RESOLUTION=640x360,FRAME-RATE=25.000,VIDEO-RANGE=SDR,CODECS="avc1.4D401F,mp4a.40.2",AUDIO="64000mp4a.40.2",SUBTITLES="100wvtt.vtt"
exp=1623350715~acl=%2f*~data=hdntl~hmac=0f51804a00427893d2294503c4dfecd8c8b15c2c08a8855dc9b9e1e733bf56f0/2095253500-prog_index.m3u8?version_hash=569d7c64
#EXT-X-STREAM-INF:BANDWIDTH=2354572,AVERAGE-BANDWIDTH=2354572,RESOLUTION=1024x576,FRAME-RATE=25.000,VIDEO-RANGE=SDR,CODECS="avc1.4D401F,mp4a.40.2",AUDIO="160000mp4a.40.2",SUBTITLES="100wvtt.vtt"
exp=1623350715~acl=%2f*~data=hdntl~hmac=0f51804a00427893d2294503c4dfecd8c8b15c2c08a8855dc9b9e1e733bf56f0/77335973-prog_index.m3u8?version_hash=569d7c64
#EXT-X-STREAM-INF:BANDWIDTH=64100,AVERAGE-BANDWIDTH=64100,CODECS="mp4a.40.2",AUDIO="64000mp4a.40.2",SUBTITLES="100wvtt.vtt"
exp=1623350715~acl=%2f*~data=hdntl~hmac=0f51804a00427893d2294503c4dfecd8c8b15c2c08a8855dc9b9e1e733bf56f0/1510100771-prog_index.m3u8?version_hash=569d7c64


#EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=21278,AVERAGE-BANDWIDTH=21278,RESOLUTION=320x180,VIDEO-RANGE=SDR,CODECS="avc1.42C015",URI="exp=1623350715~acl=%2f*~data=hdntl~hmac=0f51804a00427893d2294503c4dfecd8c8b15c2c08a8855dc9b9e1e733bf56f0/693032198-iframe.m3u8?version_hash=569d7c64"
#EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=50026,AVERAGE-BANDWIDTH=50026,RESOLUTION=480x270,VIDEO-RANGE=SDR,CODECS="avc1.42C01E",URI="exp=1623350715~acl=%2f*~data=hdntl~hmac=0f51804a00427893d2294503c4dfecd8c8b15c2c08a8855dc9b9e1e733bf56f0/629141097-iframe.m3u8?version_hash=569d7c64"
#EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=99663,AVERAGE-BANDWIDTH=99663,RESOLUTION=640x360,VIDEO-RANGE=SDR,CODECS="avc1.4D401F",URI="exp=1623350715~acl=%2f*~data=hdntl~hmac=0f51804a00427893d2294503c4dfecd8c8b15c2c08a8855dc9b9e1e733bf56f0/2095253500-iframe.m3u8?version_hash=569d7c64"
#EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=199041,AVERAGE-BANDWIDTH=199041,RESOLUTION=960x540,VIDEO-RANGE=SDR,CODECS="avc1.4D401F",URI="exp=1623350715~acl=%2f*~data=hdntl~hmac=0f51804a00427893d2294503c4dfecd8c8b15c2c08a8855dc9b9e1e733bf56f0/520500154-iframe.m3u8?version_hash=569d7c64"
#EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=274309,AVERAGE-BANDWIDTH=274309,RESOLUTION=1024x576,VIDEO-RANGE=SDR,CODECS="avc1.4D401F",URI="exp=1623350715~acl=%2f*~data=hdntl~hmac=0f51804a00427893d2294503c4dfecd8c8b15c2c08a8855dc9b9e1e733bf56f0/77335973-iframe.m3u8?version_hash=569d7c64"
```