[linux-dvb] Re: VDR suggestion - record to TS?

[Dave Chapman <dave@dchapman.com>]

On Wednesday 02 May 2001  8:26 pm, you wrote:
> > Yesterday I tested this out on Pro-7, and successfully recorded all 3
> > streams into the same TS file - PIDs 255 (video), 256 (mpeg audio) and
> > 257 (ac3 audio).
>
> Can you please tell me exactly how you did this?
>
> I know how to set the video and audio PIDs in the new API, but don't
> know how to set the AC3 PID (maybe I'm just not seeing it... ;-)

You just set up another PES filter as follows:

pesFilterParams.pid     = pid;
pesFilterParams.input   = DMX_IN_FRONTEND;
pesFilterParams.output  = DMX_OUT_TS_TAP;
pesFilterParams.pesType = DMX_PES_OTHER;
pesFilterParams.flags   = DMX_IMMEDIATE_START;

The output field tells the driver to either send the stream to the decoder 
only (DMX_OUT_DECODER), the decoder and the demux device as a single PES 
stream (DMX_OUT_TAP)  or the decoder and the dvr device as part of a 
multiplexed TS sttream (DMX_OUT_TS_TAP).

The pesType field tells the decoder what to do with the PES stream:

DMX_PES_VIDEO - this stream should be processed by the decoder as VIDEO
DMX_PES_AUDIO - this stream should be processed by the decoder as AUDIO
DMX_PES_TELETEXT - this stream should be processed by the decoder as TELETEXT
DMX_PES_OTHER - this stream is something else - don't send it to the decoder

As you will see, the only way to tell the decoder not to try and process it 
is by setting the type to OTHER.

Hope this is clearer now,

Dave.


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