In article , Andy Burns
wrote:
Jim Lesurf wrote:

Eiron wrote:

Is there any way to record the stream?

There probably will be various ways to do so. In fact, that's what I'm
trying to sort out at tghe moment! :-) The snag for me is that I want
to record what *arrives*. Not what may get though a browser and any OS
'mixers'. etc.

It just seems to fetch a sequence of ~200kB files

https://vs-dash-ww-rd-live.bbcfmt.hs.llnwd.net/al/lossless/A1/388436085.m4s
https://vs-dash-ww-rd-live.bbcfmt.hs.llnwd.net/al/lossless/A1/388436086.m4s
https://vs-dash-ww-rd-live.bbcfmt.hs.llnwd.net/al/lossless/A1/388436087.m4s

with each one containing 3-4 seconds of audio, whether or not you could
use wget/curl/etc to grab and concatenate the segments, then play the
result with vlc or some other ffmpeg based app, I don't know ...

How do you find the first 'time chunk' value when starting the process?

Given the above, it should be possible to loop and fetch successive blocks
and cat them together into a file. Personally I'm *not* trying to play the
results 'live'. But if I can record enough of the stream I can start to
analyse it.

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics https://www.st-andrews.ac.uk/~www_pa...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html

Jim Lesurf wrote:

Andy Burns wrote:

https://vs-dash-ww-rd-live.bbcfmt.hs.llnwd.net/al/lossless/A1/388436087.m4s

How do you find the first 'time chunk' value when starting the process?

I just watched the http requests from within firefox using

Tools WebDeveloper Network

When pressing play, the first requests it does are

https://vs-dash-ww-rd-live.bbcfmt.hs.llnwd.net/al/lossless/client_manifest.mpd

and

https://vs-dash-ww-rd-live.bbcfmt.hs.llnwd.net/al/lossless/A1/IS.mp4

So maybe one of those contains the hint of the current block number?

Given the above, it should be possible to loop and fetch successive blocks
and cat them together into a file. Personally I'm *not* trying to play the
results 'live'. But if I can record enough of the stream I can start to
analyse it.

In article , Andy Burns
wrote:
Jim Lesurf wrote:

Andy Burns wrote:

https://vs-dash-ww-rd-live.bbcfmt.hs.llnwd.net/al/lossless/A1/388436087.m4s

How do you find the first 'time chunk' value when starting the process?

I just watched the http requests from within firefox using

Tools WebDeveloper Network

When pressing play, the first requests it does are

https://vs-dash-ww-rd-live.bbcfmt.hs.llnwd.net/al/lossless/client_manifest.mpd

Yes. That seems to give a 'recipy' but as yet I've not been able to work
out the required 'chunk number' to start from.

and

https://vs-dash-ww-rd-live.bbcfmt.hs.llnwd.net/al/lossless/A1/IS.mp4

My *guess* is that is a 'header' of some kind for the stream. But beyond
that guess I've not really been able to work out what it says.

I'll keep puzzling.

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics https://www.st-andrews.ac.uk/~www_pa...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html

Jim Lesurf wrote:

I'll keep puzzling.

I tried streaming the .mpd URL with VLC 3.0 nightly as it's supposed to
support DASH, it knew enough to get some metadata such as the name
"radio 3 lossless" from the manifest, but didn't play any audio,
sometimes it showed a timestamp into the thousands of
hours:minutes:seconds, other times it just showed 0:0:0