Hari_Mohan wrote: > -----Original Message----- > From: linux-dvb-bounces@xxxxxxxxxxx [mailto:linux-dvb-bounces@xxxxxxxxxxx] > On Behalf Of Manu Abraham > Sent: Wednesday, February 16, 2005 2:11 PM > To: Hari_Mohan > Cc: linux-dvb > Subject: Re: [linux-dvb] [RFC] > > Hari_Mohan wrote: > >>I don't know much about this but I have seen this in a dvb demodulator >>output and ASI convertors. These lines were termed DVALID and these used > > to > >>stay high whenever there is valid data in the transport stream >>bus-8bit/serial. This line stays low when there are some special > > characters > >>coming in the bus. I think this flag is related to that. Even error line >>also is similar - ie whenever there were some uncorrectable errors this is >>supposed to stay low - depends on your configuration >> > > What i was wondering was that, whether this information could help in > the upper space DVB API/driver in any manner, in terms of error > correction and or other aspects. > ------------------------ > According to my knowledge mpeg decoder chips will clock in the data based on > the state of these lines. I don't know whether any hardware mechanism is So is this information more reliable than the 13818-1 Discontinuity flag.. ? such that this information can be used to identify cases where we have problems in the TS.. ? since under the Linux DVB API, we don't have an exact solution for discontinuity, and TS errors to a 100% effectiveness, would these flags be useful for solving that problem ? For a particular DVB card, i can get these signals out from the frontend to the card and the driver.. So, considering that aspect if i get these flags out, i was wondering whether it would be possible to have a solution for the latter errors.. That was the query that i had in my mind.. > there to store these values and use for upper layer applications. Because > stv299 may have separate APIs to calculate BER and signal quality. > > Hari > --------------------------------- > > > > >>Hari >> >>-----Original Message----- >>From: linux-dvb-bounces@xxxxxxxxxxx [mailto:linux-dvb-bounces@xxxxxxxxxxx] >>On Behalf Of Manu Abraham >>Sent: Wednesday, February 16, 2005 12:27 AM >>To: linux-dvb >>Subject: [linux-dvb] [RFC] >> >>Hi, >> >>Is there any advantage in getting the following flags out from the tuner >>(STV0299 based).. such that it might be of some help.. ? >> >>(1) data valid >>(2) error >> >> > > Manu
