2009/9/10 Lou Otway <lotway@xxxxxxxxxxxxx>: > Eduard Huguet wrote: >> >> 2009/9/10 Lou Otway <lotway@xxxxxxxxxxxxx>: >>> >>> Eduard Huguet wrote: >>>> >>>> Lou Otway <lotway <at> nildram.co.uk> writes: >>>> >>>>> Hi, >>>>> >>>>> Does anyone have experience of using the Hauppuage Nova-T 500 with >>>>> DVB-T >>>>> broadcasts with h.264 and AAC audio? >>>>> >>>>> DTT in New Zealand uses these formats and I'm seeing poor performance >>>>> from the Nova-T card. My thinking is that it was probably not conceived >>>>> for >>>>> dealing with dual h264 streams. >>>>> >>>>> Has the PCIe HVR-2200 been tested with dual h.264? I was wondering if >>>>> this card might have better performance. >>>>> >>>>> Thanks, >>>>> >>>>> Lou >>>> >>>> Hi, AFAIK the card just tunes to the desired frequency, applies >>>> configured >>>> filters (to select the desired station through its PID number), and >>>> handles the >>>> received transport stream to the calling application. It's up to the >>>> lastest to >>>> properly decode it. Check that the software you are using is properly >>>> capable of >>>> decoding this kind of content. >>>> >>>> Best regards, Eduard Huguet >>> >>> Hi, >>> >>> the problem isn't to do with playback as I have another type of adapter >>> card >>> that creates a TS, from the same mux, that is played back with no >>> problem. >>> >>> It seems that the problem only happens when using the Nova-T card. >>> >>> DTT in NZ has services with 1080i video format, I'm not sure that there >>> are >>> many other places in the world where 1080i h.264 content is broadcast >>> using >>> DVB-T, hence I was thinking that this combination may not have been well >>> tested. >>> >>> Thanks, >>> >>> Lou >>> >> >> I don't know how this it works in NZ. Here in Spain there is at least >> one station (TVC's 3HD) emitting HD content through TDT, and it works >> flawlessly with a Nova-T 500 (as I have one). I'm not sure if contents >> are 1080 or 720, though. >> >> There were some problems watching these channels through MythTV, but >> they were definitely decoding related. With current MythTV trunk they >> are fine. >> >> Anyway, as I said before, theoretically a DVB card doesn't know what >> kind of streams contains the signal it tunes. Decoding & parsing is >> handled by the app. >> >> Best regards, >> Eduard Huguet >> -- > > I'm not using MythTV or any other type of Media playing application. > > In any case, I see very different performance between the two different > types of card, when presented with the same input. > > I'll gather some more data, if I can draw any new conclusions I'll update > the list. > > Best, > > Lou > > > Maybe it's a problem of tuner sensibility. Is the low noise amplifier (LNA) activated for the Nova-T card? regards Eduard -- 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
