IRecordingSource Questions

[blackpaw]

Hi all, I'm experimenting with a IRecordingSource, IRecordingSourceConfiguration plugin. Have got a stub together that loads and doesn't crash

At the moment I'm not accessing any tuners, just supplying sample mpg files in response to recording requests. At the moment all testing is done with LiveTV (Live PreviewMode off)

Anyway - the questions:

Code:

IRecordingSourceConfiguration.getRecordingSource()

This gets called a lot - should it return an freshly created IRecordingSource or just the one created when my plugin loads.

Code:

IRecordingSource.startRecording
IRecordingSource.startNewFile

These appear to serve very similar purposes - startRecording is called when initially starting LiveTV, then startNewFile is called after switching channels. Should I be deleting the old recording filewhen startNewFile is called?

Code:

channel.analogChannelNumber

This appears to be the only indicator of which channel I'm meant to switch to and relates to the source channel number in the "Edit Recording Source" dialog. Would this be correct?

Thanks - Lindsay

[sub]

Hi all, I'm experimenting with a IRecordingSource, IRecordingSourceConfiguration plugin. Have got a stub together that loads and doesn't crash

At the moment I'm not accessing any tuners, just supplying sample mpg files in response to recording requests. At the moment all testing is done with LiveTV (Live PreviewMode off)

Anyway - the questions:

Code:

IRecordingSourceConfiguration.getRecordingSource()

This gets called a lot - should it return an freshly created IRecordingSource or just the one created when my plugin loads.

In my recording sources, I have one class that implements both IRecordingSource and IRecordingSourceConfiguration. So the call to 'IRecordingSourceConfiguration.getRecordingSource()' just does a "return this;". If you wanted them in separate classes, I'd probably just return the same instance, allocated at initialisation time.

Code:

IRecordingSource.startRecording
IRecordingSource.startNewFile

These appear to serve very similar purposes - startRecording is called when initially starting LiveTV, then startNewFile is called after switching channels. Should I be deleting the old recording filewhen startNewFile is called?

As you'd guess, startNewFile() is called when switching channels and creating a new file. This allows for a lower over-head implementation than requiring a StopRecording() followed by a StartRecording().

You dont need to delete the file. The app will do this when it is finished with it. The file would typically still be playing when this call is made.

Code:

channel.analogChannelNumber

This appears to be the only indicator of which channel I'm meant to switch to and relates to the source channel number in the "Edit Recording Source" dialog. Would this be correct?

This is the channel number form next to the channel in the capture source channel list. In the case of my analog recording source, it tells the tuner to tune to this channel number.

[blackpaw]

In my recording sources, I have one class that implements both IRecordingSource and IRecordingSourceConfiguration. So the call to 'IRecordingSourceConfiguration.getRecordingSource( )' just does a "return this;"

Great, that's exactly what I am doing.

This is working out a lot easier than I expected, of course I'm hard coding all my config at the moment and aren't actually tuning any real channels.

Thanks

[blackpaw]

Another question - the method "getFinalFileName()" - is that supplied to allow for the IRecordingSource to return a different file name to the one passed in startRecording/startNewFile?

[sub]

Another question - the method "getFinalFileName()" - is that supplied to allow for the IRecordingSource to return a different file name to the one passed in startRecording/startNewFile?

Yes.

[blackpaw]

One last question ...

Sub - do you use the DirectShow.Net library?

[sub]

No I dont.