Re: [vdr] [PATCH] ATSC for VDR 1.7.4

2009-01-26 Thread Klaus Schmidinger 
On 25.01.2009 22:07, Alex Lasnier wrote:
 Hi all,
 
 This patch adds ATSC support to VDR 1.7.4.
 
 Klaus, would you consider adding this to VDR?

Am I right in understanding that ATSC is a subset of DVB-T?

How are ATSC transponders announced in the NIT?
Shouldn't there also be some code in cNitFilter::Process() for this?

Klaus

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Re: [vdr] [PATCH] ATSC for VDR 1.7.4

2009-01-26 Thread Alex Lasnier 
Klaus Schmidinger wrote:
 On 25.01.2009 22:07, Alex Lasnier wrote:
 Hi all,

 This patch adds ATSC support to VDR 1.7.4.

 Klaus, would you consider adding this to VDR?
 
 Am I right in understanding that ATSC is a subset of DVB-T?
 
 How are ATSC transponders announced in the NIT?
 Shouldn't there also be some code in cNitFilter::Process() for this?
 
 Klaus
 

Although ATSC and DVB-T share some similarities, they are fundamentally 
different. For instance, the ATSC standard does not even define a NIT. 
The patch simply allows VDR to tune and view ATSC channels, the various 
tables are parsed by a plugin.

Alex


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[vdr] [PATCH] ATSC for VDR 1.7.4

2009-01-25 Thread Alex Lasnier 

Hi all,

This patch adds ATSC support to VDR 1.7.4.

Klaus, would you consider adding this to VDR?


Regards,

Alex Lasnier
diff -u vdr-1.7.4.orig/dvbdevice.c vdr-1.7.4/dvbdevice.c
--- vdr-1.7.4.orig/dvbdevice.c  2009-01-10 05:07:33.0 -0500
+++ vdr-1.7.4/dvbdevice.c   2009-01-25 15:23:21.0 -0500
@@ -319,6 +319,16 @@
  tuneTimeout = DVBT_TUNE_TIMEOUT;
  lockTimeout = DVBT_LOCK_TIMEOUT;
  }
+  else if (frontendType == SYS_ATSC) {
+ // ATSC
+ SETCMD(DTV_DELIVERY_SYSTEM, frontendType);
+ SETCMD(DTV_FREQUENCY, FrequencyToHz(channel.Frequency()));
+ SETCMD(DTV_INVERSION, channel.Inversion());
+ SETCMD(DTV_MODULATION, channel.Modulation());
+ 
+ tuneTimeout = DVBT_TUNE_TIMEOUT;
+ lockTimeout = DVBT_LOCK_TIMEOUT; 
+ }
   else {
  esyslog(ERROR: attempt to set channel with unknown DVB frontend type);
  return false;
@@ -856,7 +866,7 @@
   return type == cSource::stNone
   || type == cSource::stCable  (frontendType == SYS_DVBC_ANNEX_AC || 
frontendType == SYS_DVBC_ANNEX_B)
   || type == cSource::stSat(frontendType == SYS_DVBS || frontendType 
== SYS_DVBS2)
-  || type == cSource::stTerr   (frontendType == SYS_DVBT);
+  || type == cSource::stTerr   (frontendType == SYS_DVBT || frontendType 
== SYS_ATSC);
 }
 
 bool cDvbDevice::ProvidesTransponder(const cChannel *Channel) const
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