On Wed, 2011-08-17 at 19:27 +0200, Josu Lazkano wrote: > 2011/8/17 Malcolm Priestley <tvbox...@gmail.com>: > > On Wed, 2011-08-17 at 01:23 +0200, Jose Alberto Reguero wrote: > >> On Martes, 16 de Agosto de 2011 22:57:24 Antti Palosaari escribió: > >> > On 08/16/2011 11:27 PM, Jose Alberto Reguero wrote: > >> > >> options dvb-usb force_pid_filter_usage=1 > >> > >> > >> > >> I change the signal timeout and tuning timeout and now it works > >> > >> perfect! > >> > >> > >> > >> I can watch two HD channels, thanks for your help. > >> > >> > >> > >> I really don't understand what force_pid_filter_usage do on the > >> > >> module, is there any documentation? > >> > >> > >> > >> Thanks and best regards. > >> > > > >> > > For usb devices with usb 2.0 when tunned to a channel there is enought > >> > > usb bandwith to deliver the whole transponder. With pid filters they > >> > > only deliver the pids needed for the channel. The only limit is that > >> > > the > >> > > pid filters is limited normaly to 32 pids. > >> > > >> > May I ask how wide DVB-T streams you have? Here in Finland it is about > >> > 22 Mbit/sec and I think two such streams should be too much for one USB > >> > bus. I suspect there is some other bug in back of this. > >> > > >> > regards > >> > Antti > >> > >> Here the transport stream is like yours. About 4 Mbit/sec by channel, and > >> about 5 channels by transport stream. The problem I have is that when I > >> have > >> the two tuners working I have a few packets lost, and I have some TS > >> discontinuitys. With pid filters the stream is perfect. Perhaps Josu have > >> another problem. > > > > I am certain it is the configuration of the second frontend that ripples > > through Afatech devices. > > > > I have only got a single AF9015 device so can't test the dual > > configuration. > > > > Does the same problems exist when running the second frontend solo or > > dual with the Windows driver? > > > > With the IT1937(aka AF9035) the second frontend appeared not to work at > > all in Windows in dual mode. > > > > tvboxspy > > > > > > Thanks Malcolm, sorry but I don't understand very good your post (my > poor english). > > On Microsoft Windows XP the dual device works great, I can watch two > different channels (different transponder). > > I want to know if there is an other command-line tool to test them, > because it will be MythTV playback problem. > > The most problem is that sometimes one adapter work, then no adapter > work and then both adapter work but there is no clear image (pixeled). > > How could I test if there is some packet drop? Looks like you need pid filtering on, but if you force the pid filter on, it won't work because there is no functions setup for it on the driver for the second frontend.
btw, you need to force the pid filter on at boot time, add a line in file. /etc/modules (or /etc/modules.preload) dvb_usb force_pid_filter_usage=1 Otherwise, it keeps going off. But, it will only work on the first frontend(adapter). It works fine on my single one. Regards Malcolm -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
