Note: this utility no longer works properly, as NRK changed their streaming methods a while back. I have no incentives to fix it yet, but leave it here for inspiration, along with some thoughts on how to get it working again.
Since the video source URLs are no longer directly present in the statically served HTML page for a video, one would need to apply a different strategy to extract them. For instance by parsing/executing the page using a headless browser engine and extracting the PSAPI metadata URL (psapi-.nrk.no) from the live DOM after "playback" has started. From the PSAPI metadata URL content (JSON), you can find the CDN M3U8 video stream URLs which ffmpeg is able to save.*
Command line utility to rip video streams from the Norwegian national broadcasting service NRK.no.
Video streams are saved as MP4 files, optionally with accompanying subtitles in SRT format.
- Recent-ish version of ffmpeg binary for best results, available in PATH
- Perl with modules
WWW::CurlandHTML::Parserinstalled.
It has only been tested on UNIX-like operating systems (Linux, OSX). I have no idea how it works on the Windows platform.
It is written in Perl more by coincidence than choice. Expect breakage whenever NRK changes things around significantly on the video publishing site.
Fetch a video in foreground, save to auto-generated file name:
$ nrkrip https://tv.nrk.no/serie/lille-loerdag/FKUN19001096/27-11-1996
Fetch a video in foreground, save to auto-generated parent directory and file:
$ nrkrip --dir https://tv.nrk.no/serie/lille-loerdag/FKUN19001096/27-11-1996
Fetch videos in parallel and wait for all rips to finish:
$ nrkrip --dir --wait --async https://tv.nrk.no/serie/lille-loerdag/FKUN19000696/30-10-1996 \
https://tv.nrk.no/serie/lille-loerdag/FKUN19001096/27-11-1996
This generates a common parent directory for the series and puts the episodes in that dir:
Lille Lørdag/Lille Lørdag - 30.10.1996 S01E06.mp4
Lille Lørdag/Lille Lørdag - 27.11.1996 S01E10.mp4
Use: nrkrip [opts] SOURCE [SOURCE ..]
SOURCE is typically a playback URL for an episode or program on
tv.nrk.no/tv.nrksuper.no. It can also be a file with list of such URLs.
Example:
$ nrkrip https://tv.nrk.no/serie/lille-loerdag/FKUN19001096/27-11-1996
You may alternativly provide direct HLS stream URLs, which will be ripped. This
may be used to rip from sources other than NRK.
By default, output files are saved to current directory, possibly with a
generated parent directory based on title.
--meta, -m
Only show extracted metadata from URL, do not actually rip video
stream or write any files. Can be used to test metadata extraction.
--async, -a
Enable async mode - stream rips are executed in parallel as background jobs.
--wait, -w
When using async mode, wait for all background jobs before exiting,
and report their status as they finish.
--out FILE, -o FILE
Optionally set output FILE. (Normally, a suitable file name is generated.)
This option is not compatible with multiple URLs.
--jobs, -j
Max number of simultaneous background jobs (integer >= 1).
Default is unlimited. Only applicable when using '--wait'.
--dir, -d
Always use a title-based directory as parent of output files, even
though it does not already exist (will be created on demand).
--subs, -s
Experimental: try to fetch and convert subtitles. If successful, the subtitles
will be saved in ".srt" format using the same basename as the output file.
--yes, -y
Always overwrite output files. Useful especially when running in async mode.
--progress LOGFILE|-, -p LOGFILE|-
Analyze ffmpeg progress based on contents of LOGFILE and print a numeric
percentage between 0.0 and 100.0, then exit. This can be used to periodically
check progress of async jobs. If LOGFILE is "-", then input is continually
read from STDIN and progress continually printed to STDOUT.
--version, -v
Show versions of script, Perl and ffmpeg.
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