[mythtv] [PATCH] DVB video and audio pid validation

[Michael Hutchinson]

After updating to the latest cvs and the latest DVB patch, 
(dvb-alpha-0.5.tar.bz2) I noticed that my system would no longer tune to 
certain channels. From the verbose output it appeared that some of the PIDs 
were not being past through to the card (Nebula DigiTV). Examination of the 
pid validation code in  dvbchannels.cpp and dvbrecorder.cpp shows that video 
and audio must PIDs be greater than 255 (0xFF) to be considered valid. 
However on my local transmitter, Winter Hill, there are a number of channels 
with pids less than this.  The patch changes the threshold to 100 (0x64) 
which fixes the problem for me.

diff -Naur mythtv-org/libs/libmythtv/dvbchannel.cpp 
mythtv/libs/libmythtv/dvbchannel.cpp
--- mythtv-org/libs/libmythtv/dvbchannel.cpp	2003-09-29 18:27:22.000000000 
+0100
+++ mythtv/libs/libmythtv/dvbchannel.cpp	2003-09-29 18:25:59.000000000 +0100
@@ -408,13 +408,13 @@
 
     for (unsigned int i=0; i<audio.size(); i++)
     {
-        if (audio[i].toInt() > 0xff)
+        if (audio[i].toInt() > 0x64)
             pids.audio.push_back(audio[i].toInt());
     }
 
     for (unsigned int i=0; i<video.size(); i++)
     {
-        if (video[i].toInt() > 0xff)
+        if (video[i].toInt() > 0x64)
             pids.video.push_back(video[i].toInt());
     }
 
diff -Naur mythtv-org/libs/libmythtv/dvbrecorder.cpp 
mythtv/libs/libmythtv/dvbrecorder.cpp
--- mythtv-org/libs/libmythtv/dvbrecorder.cpp	2003-09-28 22:35:52.000000000 
+0100
+++ mythtv/libs/libmythtv/dvbrecorder.cpp	2003-09-28 13:55:01.000000000 +0100
@@ -191,9 +191,9 @@
     {
         int this_pid = pids[i];
 
-        if (this_pid < 0x100 || this_pid > 0x1fff)
+        if (this_pid < 0x065 || this_pid > 0x1fff)
         {
-            ERR(QString("PID Value (%1) out of range 
(0xff-0x1fff).").arg(this_pid));
+            ERR(QString("PID Value (%1) out of range 
(0x64-0x1fff).").arg(this_pid));
             continue;
         }
 
I hope this helps !

                       Mike