DVB radio demultiplexing

[funkybro_uk]

Hi all.

Sub has said before he has no current interest in providing much support for DVB radio. However, I can still get successful manual recordings from these channels.

The problem is playing them back. The recordings still appear as mpeg files, but Winamp and media player don't like them. The only way I have found to extract the audio successfully is to use the "simple demux" function in TMPGEnc. This leaves me with a nice .mp2 audio file of the recording.

I would like to be able to extract this programmatically (e.g. in a post-recording batch file, detect that a .mpeg has no video, demux automatically to .mp2, then perhaps use LAME to cross-convert to .mp3), but there seems to be no way to do so.

Ideally I'd open the .mpeg in GraphEdit and connect the "audio" pin to a file sink, but GraphEdit rejects the file when you try to open it.

Does anyone have any ideas about this? And Sub, is it a huge amount of work to just record any channel with a 0 Video PID as .mp2 audio only?

funkybro

[sub]

I do now intend to do DVB radio, but it wont be in the next release.

[funkybro_uk]

Hiya

I do now intend to do DVB radio, but it wont be in the next release.

Sub, my life would be complete if I could listen to live DVB radio easily through my MVP, and record straight to MP2 without having to demultiplex. Any update on the status of this?

Thanks
funkybro

[sub]

Sorry, it wont be the next release either. I'm busy with other things at the moment.

[johnnygal]

funkybro,

you could use bbdmux to extract the audio stream from the command line, so you can automate it from a batch file.

e.g. "bbdmux recording.mpg 0xc0 recording.mp2".

Not sure though how you'd tell if a recorded mpg is a radio recording or not though. Perhaps from filesize?

You can get bbdmux as part of the bbtools download

John

[deen]

I currently use pvastrumento and besweet manually to get mp3s from dvb-t radio typically to use with a portable mp3 player, seems quite succesful so far.
Careful which rev of pva you use, I could not get some of the some of the later ones to work, I use pvas21012.
The included gui also allows you to set up a batch job if many large files need to be converted.