From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.kapsi.fi ([217.30.184.167]:49861 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750932Ab2HKAPJ (ORCPT ); Fri, 10 Aug 2012 20:15:09 -0400 Message-ID: <5025A3FD.8020001@iki.fi> Date: Sat, 11 Aug 2012 03:14:53 +0300 From: Antti Palosaari MIME-Version: 1.0 To: Mauro Carvalho Chehab CC: CrazyCat , "linux-media@vger.kernel.org" , Manu Abraham Subject: Re: [PATCH] DVB-S2 multistream support References: <59951342221302@web18g.yandex.ru> <50258758.8050902@redhat.com> In-Reply-To: <50258758.8050902@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: On 08/11/2012 01:12 AM, Mauro Carvalho Chehab wrote: > Em 13-07-2012 20:15, CrazyCat escreveu: >> #define DTV_ISDBS_TS_ID 42 >> >> #define DTV_DVBT2_PLP_ID 43 >> +#define DTV_DVBS2_MIS_ID 43 > > It would be better to define it as: > > #define DTV_DVBS2_MIS_ID DTV_DVBT2_PLP_ID > > Even better, we should instead find a better name that would cover both > DVB-T2 and DVB-S2 program ID fields, like: > > #define DTV_DVB_MULT 43 > #define DTV_DVBT2_PLP_ID DTV_DVB_MULT > > And use the new symbol for both DVB-S2 and DVB-T2, deprecating the > legacy symbol. Also DTV_ISDBS_TS_ID means same. All these three DTV_ISDBS_TS_ID, DTV_DVBT2_PLP_ID and DTV_DVBS2_MIS_ID are same thing - just named differently between standards. I vote for common name TS ID (I have said that already enough many times...). Research paper [1] ISDB-S says: " New technologies like the trellis-coded 8PSK (TC8PSK) modulation scheme were adopted for this section to improve transmission capacity as much as possible and to enable multiple transport streams (TSs) to be handled by one carrier. This channel coding system has consequently become a system standard known for its flexibility and extendibility. " " It enables multiple MPEG-TSs to be transmitted with one transponder, and because transmission systems can be switched for each TS signal, it enables TS signals produced by each broadcaster to be transmitted independently. " [1] http://www.tijbc.com/pruebas-7419/I0782925.pdf regards Antti -- http://palosaari.fi/