Em Wed, 24 Sep 2014 21:06:43 +0900 Akihiro TSUKADA <tskd08@xxxxxxxxx> escreveu: > > And TMCC returns it as 0, 1, 2, 3, 4, instead of 0, 1, 2, 4, 8. > > According to ARIB STD B31 3.15.6.7 (table 3.30), > The value is encoded and depends on the "mode". > so demods have to encode/decode anyway. Ok, but see the definition at the API spec: http://linuxtv.org/downloads/v4l-dvb-apis/FE_GET_SET_PROPERTY.html#isdb-hierq-layers Basically, we use 0, 1, 2, 4 no matter what mode, e. g. DTV_ISDBT_LAYERA_TIME_INTERLEAVING 1 means: Interleave = 4 for mode 1 Interleave = 2 for mode 2 Interleave = 1 for mode 3 > > AFAIKT, that doesn't work in Sound Broadcast mode, as the demod won't > > be able to read the TMCC (at least on most demods - don't have any > > details about tc90522). > > I forgat ISDB-Tsb;P, as in Japan terrestrial digital sound broadcast > was cancelled in 2011 and it was unpopular. Ah, I wasn't aware that ISDB-Tsb was cancelled in Japan. Regards, 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
