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[linux-dvb] Re: Analog module



Michael Hunold wrote:

Hello Henrik,

> So the question is if it's possible hardware-wise to capture

from an analog source and watch the DVB source simulataneously. Of course you cannot receive the DVB stream since they are using the same tuner but you would like to see the menus and the decoded captured MPEG stream.

On your computer monitor? No, that's not possible. The av7110 DVB stuff is connected to the video port a of the saa7146, the analog TV stuff is connected to video port b of the saa7146.

In order to have the av7110 OSD on the analog output, the analog TV stuff should have to go through the av7110. But it does not. 8-(

There is no need to add OSD directly to the live analog TV picture. The analogTv plugin doesn't work like this. First the analog stream is captured from a V4L device (witch may come from the analog TV module). Then the audio and video is encoded in realtime with an MPEG1 encoder. And finally it's sent to the av7110 for decoding. So shouldn't it be possible to watch the decoded mpeg stream from the av7110 on the computer monitor while capturing video from the analog module even if it's not possible with the current driver?

/Henrik




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