Playback of FM Radio or MP3 through my TV

[-x-]

Dear all,

my wish:
I wish to get the MP3s from my music library and/or the currently received FM Radio program to be streamed to the PVR350. For the first iteration I would not mind the screen being black ;-) Second interation could create a video channel from algorithms like the itunes visualisation or the modules from winamp's AVS.
I'd love to do this as a plugin if that's not currently on the list for the next few months.

background:
What I did manage in GraphEdit so far was to create a temp mpeg file from a Fm radio reception (yes, image pitch-black) and at the same time start another instance of Graphedit playing back the same mpeg file (with the Hauppauge File Reader) to my TV. A little delay but it works.

A bit off wishlist topic:
I'd like to understand how I could get rid of the temp file but instead connect the two graphs in one instance of Graphedit?
Finding a set of files named like "livetv-5-1.mpg" indicates to me that there must be a file as buffer in between with the Hauppauge drivers. Trying to link the graphs directly gives me an "PIN incompatible" type of message. Which on a more general note always brings me down to the question: How do I know/find out whether PINS are compatible with each other and what media/stream they carry? I'm happy to email the graphs I am using (which is no rocket science at all) if one is interested.

Christoph

PS Details on the graphs
record graph:
[Hauppauge WinTV PVR PCI II Capture.Capture]-->
[Hauppauge WinTV File Writer.Input]
produces MPEGTemp.mpg

playback graph
[Hauppauge WinTV File Writer.Output]-->
[Hauppauge WinTV PCI II Decoder.Video/Muxed In]
reads MPEGTemp.mpg

So why not
[Hauppauge WinTV PVR PCI II Capture.Capture]-->
[Hauppauge WinTV PCI II Decoder.Video/Muxed In]
(maybe with some intermediate filters...)??

[sub]

The backing file is required because the recording and playback graphs are in different processes so its not possible to connect them directly.

You can already get your MP3 and FM radio working with your PVR350. Most people buy a loop back cable and connect the audio out of the PVR350 to the line-in on the their sound card (and unmute the input), then line-out to their TV or AMP. This allows for the seamless playback of Video/MP3s/FM Radio.

[nkh]

If the graph uses the hardware mpeg2 encoder on the pvr350, then it's wastly superior to the current radio function that requiers the user to install the lame mp3 encoder.

[sub]

The lame encoder is used to remain compatible with the MVP. To support the wide range of clients in GB-PVR, I have to build to the things they share in common.

[-x-]

Thanks for responding but you find me confused.
I'm afraid I was not clear on my description either.

Quote[/b] ]You can already get your MP3 and FM radio working with your PVR350. Most people buy a loop back cable and connect the audio out of the PVR350 to the line-in on the their sound card (and unmute the input), then line-out to their TV or AMP. This allows for the seamless playback of Video/MP3s/FM Radio.

I want to use the single cable I already have connected to my tv. So here I am with my TV in roomA and the PC with PVR in roomB. All I currently have in roomA is the TV which has excellent speakers. If I switch on FM Radio on the GB-PVR no sound is coming out of my TV.
I wish I could listen to the FM Radio simply over the TV's speakers. I do not want to watch my TV programm in parallel (even though that might be a cool combination for some parts).

Quote[/b] ]The backing file is required because the recording and playback graphs are in different processes so its not possible to connect them directly.

I assume (and verified in principle) that the PVR350's FM Radio can be streamed (using the buffer file) back to the PVR's TV output with a empty/black image (we'll work on those animations later on) using the mentioned buffer file (when running in two instances). I do understand and agree that the two graphs in two instances will not be able to be connected. But if I build the same sub-graphs in one instance of GraphEdit (presumed to be MPEGout-->MPEGin) I still cannot connect. If I includes some steps of demuxing and muxing into the pipeline all I get is a frozen system. I'm happy to provide such a graph as well on request.
If we could get this working with or without buffer file it would enable a flexible playback solution for audio as it currently seems to be available for video. As far as I understand the video can be rendered either onto the computer screen or to the PVR350.

Am I missing something?
cheers - X

[nkh]

Quote[/b] (sub @ Oct. 29 2004,04:32)]The lame encoder is used to remain compatible with the MVP. To support the wide range of clients in GB-PVR, I have to build to the things they share in common.

But all devices should be able to play an mpeg file with black video and sound.

[sub]

Quote[/b] ]Thanks for responding but you find me confused.
I'm afraid I was not clear on my description either.

Quote[/b] ]You can already get your MP3 and FM radio working with your PVR350. Most people buy a loop back cable and connect the audio out of the PVR350 to the line-in on the their sound card (and unmute the input), then line-out to their TV or AMP. This allows for the seamless playback of Video/MP3s/FM Radio.

I want to use the single cable I already have connected to my tv. So here I am with my TV in roomA and the PC with PVR in roomB. All I currently have in roomA is the TV which has excellent speakers. If I switch on FM Radio on the GB-PVR no sound is coming out of my TV.
I wish I could listen to the FM Radio simply over the TV's speakers. I do not want to watch my TV programm in parallel (even though that might be a cool combination for some parts).

I think you're missing the point of my reply. With using this loopback back cable to line-in, then line-out to TV, you only end up with one audio cable going to your TV and it allows you to watch video, listen to MP3s and listen to FM radio all on your TV. You dont need to do anything to switch inputs on your TV or anything painful like that.

[-x-]

Dear all,

my usual config is:
1) [SoundCard]--(LineOut)==>(LineIn)--[AV Monitor]
2) [VCR]--(Scart)==>(S-Video & LineIn)--[PVR350]--(A/V Connector)==>[TV]

Here's what I understand from Sub's suggestion for the loopback cable:
[SoundCard]--(LineOut)==>(LineIn)--[PVR350]--(A/V Connector)==>[TV]

I actually tried this setup but no sound reached the TV when switching to FM Radio or starting the Jukebox. I still had audio for my video recordings. When I switched the loopback cable back to my AV/Monitor I did get the sound from it I was waiting for on the TV...

My assumption is that LineIn is piped to the A/V Connector's Audio out only if you select the S-Video/Composite channel e.g for recording.

What I do not understand (as the underlying issue I assume): Grabbing and playback of the PVR350 are designed to be independent. Many applications allow to record and playback with it at the same time. I do not get why I could not connect them in one Filtergraph? Any Ideas along this thought?

Thank you for your time!

Kind Regards - Christoph

[sub]

[PVR350]--(A/V Connector)==>[SoundCard]--(LineIn), [SoundCard]--(LineOut)==>[TV]