Em Tue, 1 Jan 2013 22:18:49 +0530 Manu Abraham <abraham.manu@xxxxxxxxx> escreveu: > On Tue, Jan 1, 2013 at 8:30 PM, Mauro Carvalho Chehab > <mchehab@xxxxxxxxxx> wrote: > > > [RFCv4] dvb: Add DVBv5 properties for quality parameters > > > > The DVBv3 quality parameters are limited on several ways: > > - Doesn't provide any way to indicate the used measure; > > - Userspace need to guess how to calculate the measure; > > - Only a limited set of stats are supported; > > - Doesn't provide QoS measure for the OFDM TPS/TMCC > > carriers, used to detect the network parameters for > > DVB-T/ISDB-T; > > - Can't be called in a way to require them to be filled > > all at once (atomic reads from the hardware), with may > > cause troubles on interpreting them on userspace; > > - On some OFDM delivery systems, the carriers can be > > independently modulated, having different properties. > > Currently, there's no way to report per-layer stats; > > per layer stats is a mythical bird, nothing of that sort does exist. Had you ever read or tried to get stats from an ISDB-T demod? If you had, you would see that it only provides per-layer stats. Btw, this is a requirement to follow the ARIB and ABNT ISDB specs. Cheers, Mauro -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
