[mythtv] Re: [mythtv-commits] Ticket #926: Radio channels for DVB-T

Steve Adeff adeffs at gmail.com
Tue Jan 3 13:23:53 UTC 2006

On Tuesday 03 January 2006 07:56, MythTV wrote:
> #926: Radio channels for DVB-T
> --------------------------------+------------------------------------------
>- Reporter:  dm at prolingua.co.uk  |       Owner:  danielk
>      Type:  enhancement         |      Status:  new
>  Priority:  minor               |   Milestone:
> Component:  mythtv              |     Version:
>  Severity:  medium              |
> --------------------------------+------------------------------------------
>- This patch adds the ability to record and play radio channels transmitted
> on DVB.  They can be recorded or played live just like the television
> channels.
>  It works by adapting the idea of the dummy dtv recorder to generate an
>  additional video stream to go along with the audio and locks the video by
>  setting the time stamps of the video packets to match the audio stream.
>  That means that all the frontend code that assumes that there is a video
>  stream works without any change.  The recording has the keyframes that are
>  needed for seeking.  The patches are all in the backend and almost
>  entirely to dvbrecorder apart from very minor changes to allow radio
>  channels to be included in the scan and EIT information.
>  It does increase the size of the recorded files compared to recording the
>  audio alone but not by an enormous amount since the dummy television
>  images are very small.
>  David Matthews

In the states, for digital TV we have MusicMatch audio stations, I've noticed 
at least for me they get broadcast in the clear, but the video channel for 
them is not linked like normal channels by the program ID, and when you find 
the video ID the video is more like a slide show where an image is sent out 
then nothing for some seconds then the next video image. Would something like 
this allow me to tune the audio PID and not worry about the video so I could 
at least listen to the station?


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