[mythtv-commits] Ticket #6058: H264 HDTV channels with service type 0x11 not recognized

MythTV mythtv at cvs.mythtv.org
Fri Jan 2 23:09:41 UTC 2009


#6058: H264 HDTV channels with service type 0x11 not recognized
-------------------------------------+--------------------------------------
 Reporter:  klaas.de.waal at gmail.com  |       Owner:  ijr    
     Type:  patch                    |      Status:  new    
 Priority:  minor                    |   Milestone:  unknown
Component:  mythtv                   |     Version:  head   
 Severity:  medium                   |     Mlocked:  0      
-------------------------------------+--------------------------------------
 The mythtv-setup channelscan recognizes not all five HDTV channels on my
 DVB-C signal.
 It does recognize National Geographic Channel HD, Brava HD and History HD.
 It does NOT recognize Discovery HD and Eurosport HD as HDTV channels, but
 instead gives the following messages:

 Skipping Discovery HD on 29 - Data Only Channel (off-air?)

 Skipping Eurosport HD on 167 - Data Only Channel (off-air?)

 A bit of debugging in mythtv/libs/libmythtv/mpeg/dvbdescriptors.h shows
 that the HDTV channels that are recognized do have the service type value
 0x19 (enumerated as kServiceTypeHDTV = 0x19).
 The HDTV channels that are not recognized do have the service type value
 0x11. The value 0x11 is not present in the enumeration.

 I have made a fix for dvbdescriptors.h in which I have added 0x11 as a
 HDTV value in the enumeration. I have also changed the function "bool
 IsHDTV()" to test for both values.
 With this fix I can receive all five HDTV channels on my cable.
 This fix is tested with today's svn 19540.
 The patch for dvbdescriptors.h attached below.


 Results of some searching of what the 0x11 and 0x19 are all about:

 My rather old copy of ETSI EN 300 468 lists the values from 0x11 to 0x7F
 as "reserved for future use" in Table 75, "Service type coding", so that
 is no help.

 Searching in Google for "HDTV service 0x11 0x19" gives a pointer to

 www.dgtv.it/stat/Allegati/Allegato_3_Bollino_STB.pdf

 This document is about HDTV on DVB-T in Italy and here it says that 0x11
 and 0x19 are both service types for HDTV channels.

-- 
Ticket URL: <http://svn.mythtv.org/trac/ticket/6058>
MythTV <http://www.mythtv.org/>
MythTV


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