(deprecated) cross platform tuner sharing, friendly user test

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Originally posted by liviurosioara
When you compile the vtunerd.mipsel for dm800 you do it with 'have_dmm_tuner' (vtuner-dmm-3.c)... but what i want to share is the second tuner, that is usb dvb-t (vtuner-dvb-3.c) attached to dm800. Could you build the vtunerd.mipsel in this way?

The usbtuner binary from Homey[GER] is using the DMM API extensions as well and it's known to work there. So I doubt that this is the reason.

Roland

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Originally posted by liviurosioara
rmie, thanks again, you were right, the version from 26.08 works fine, I use vtunerd on popcornhour nmt with attached usb dvb-t cinergy t2 and vtunerc on dm800.

What I would like to try next is to connect directly the usb tuner to dm800, and to run both vtunerd and vtunerc on the same dm800. But this would require a vtunerd version compiled for dvb tuner and dm800, like I said in the previous post. I suppose compile.sh should look like:

CC=/stuff/dm800/build/tmp/cross/bin/mipsel-linux-gcc
ARCH=mipsel
CFLAGS="-DHAVE_DVB_API_VERSION=3 "$DBGFLAGS
LDFLAGS="-lpthread -lrt"
$CC $CFLAGS -c -o vtuner-network.$ARCH.o vtuner-network.c
$CC $CFLAGS -c -o vtuner-dvb-3.$ARCH.o vtuner-dvb-3.c
$CC $CFLAGS $LDFLAGS -o vtunerd.$ARCH vtuner-network.$ARCH.o vtuner-dvb-3.$ARCH.o vtunerd.c
$CC $CFLAGS $LDFLAGS -o vtunerc-test.$ARCH vtuner-network.$ARCH.o vtuner-dvb-3.$ARCH.o vtunerc-test.c

Alles anzeigen

You should try the attached usbtuner, it's a Q&D hack of Homeys usbtuner.c with the following additions:
- discover attached tuner type (DVB-T/DVB-C/DVB-S) and set vtuner type according
- copy dvb_frontend_info from usb attached tuner to vtuner device

I haven't tested this, so it may be completely broken

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Originally posted by liviurosioara
I have tested usbtuner before, it's not working with dvb-t for the moment.

Because I don't have the toolchain to cross-compile vtunerd for dm800, I would need your help to build the vtunerd from 26.08 with dvb-api instead of dmm tuner. Then I will test it and provide with the details.

sorry, i was not precise enough. usbtuner.gz is a compressed mipsel binary.

Roland

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Originally posted by liviurosioara
I have read the thread about usbtuner some weeks ago and already tested the binary. Unfortunatelly, it works only for dvb-s tuners.

Yes, I know. I've added support for DVB-T and DVB-C in the attached version

that's the diff

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> #define VTUNER_SET_FE_INFO 6
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< 	int fe = open("/dev/dvb/adapter0/frontend0", O_RDWR);
---
> 	int fe = open("/dev/dvb/adapter1/frontend0", O_RDWR);
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>         struct dvb_frontend_info fe_info;
> 	if( ioctl(fe, FE_GET_INFO, &fe_info) ) {
> 		perror("vTuner: FE_GET_INFO failed\n");
> 		return 1;
> 	}
> 
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< 	if (ioctl(vtuner_control, VTUNER_SET_TYPE, "DVB-S2"))
---
> 	char type[8];
> 	switch(fe_info.type) {
> 		case FE_QPSK:	strcpy(type,"DVB-S2"); break;
> 		case FE_QAM:	strcpy(type,"DVB-C"); break;
> 		case FE_OFDM:	strcpy(type,"DVB-T"); break;
> 	}
> 	if (ioctl(vtuner_control, VTUNER_SET_TYPE, type)) 
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> 	if (ioctl(vtuner_control, VTUNER_SET_FE_INFO, &fe_info)) 
> 		perror("VTUNER_SET_FE_INFO");

Roland

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Originally posted by liviurosioara
Sounds great I'll test right now!

Later edit: it doesn't work. After restarting e2, there is an error message FE_SET_VOLTAGE failed - Invalid argument. And no tuning at all.

Another Patch:

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< 				require(ioctl(fe, FE_SET_VOLTAGE, msg.body.voltage) == 0, "FE_SET_VOLTAGE");
---
> 				if(fe_info.type == FE_QPSK) {
> 					require(ioctl(fe, FE_SET_VOLTAGE, msg.body.voltage) == 0, "FE_SET_VOLTAGE");
> 				}

Roland

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Originally posted by liviurosioara
What I saw it was wrong:

[1081 vtuner-dvb-3.c:91] warn: FE_GET_FRONTEND failed
[1081 vtunerd.c:290] debug: MSG_GET_FRONTEND
[1081 vtunerd.c:347] warn: vtuner call failed, type:-1 reason:-1 - Invalid argument

That's really strange, it's hard to understand why FE_GET_FRONTEND is failing.

I've wrote a simple test program to verify this. If tested this with most tuners available to me (dm800, dbox2, hauppauge pci card, PCTV 452e, B2C2 USB DVB-T) it works successful. Please try with your CinergyT2 if it fails there, I'd assume the driver to be broken.

Roland

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Originally posted by liviurosioara
Now, I can tell you why it's failing... It has nothing but a comment in the source file in the section where FE_GET_FRONTEND should be defined... So the driver is the problem.

Do you have your build env up and running?

A simple workaround would be to save the information set by FE_SET_FRONTEND and, if the call to FE_GET_FRONTEND fails, return this. Should be not more than 10 lines of code in usbtuner.c.

Roland

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Originally posted by liviurosioara
But do you think that the warning 'FE_GET_FRONTEND failed' is the cause for not having the stream displayed?

I'm not sure, but the suggested work around is easy. So it's worth trying.

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Originally posted by Conian
I'm interrested using Dbox2(DVB-S) as server, but is the 10MBit/s-ethernetconnection fast enough to watch programs with high datarates, like ARD,ZDF,...?

Yes, high data rate services are causing problems. RTL/VOX/SAT1/PRO7 are working flawless 99% of the time.

Roland

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Originally posted by liviurosioara

I got the toolchain working. But my knowledge in programming is still limited Could you indicate the steps needed, please?

This should work (as usual, totaly untested

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> 			struct dvb_frontend_parameters fe_params;
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> 				memcpy(&fe_params, &msg.body.dvb_frontend_parameters, sizeof(fe_params));
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< 				require(ioctl(fe, FE_GET_FRONTEND, &msg.body.dvb_frontend_parameters) == 0, "FE_GET_FRONTEND");
---
> 				if(ioctl(fe, FE_GET_FRONTEND, &msg.body.dvb_frontend_parameters)) {
> 					// workaround for broken CinergyT2 driver
> 					memcpy(&msg.body.dvb_frontend_parameters, &fe_params, sizeof(msg.body.dvb_frontend_parameters));
> 				}

Roland

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Originally posted by SrbastianM
would it be possible to use picture in picture on a dm800 (e.g. with a dm600 as second tuner server...)

ciao
Basti

no, only one decoder device is available