From 8d4d7f2b626226a543e09651772d43e7313ebbf5 Mon Sep 17 00:00:00 2001
From: Klaus Schmidinger <vdr@tvdr.de>
Date: Sun, 9 Mar 2003 14:10:12 +0100
Subject: [PATCH] Trying harder to find a primary device

---
 HISTORY  |  5 +++++
 device.c | 21 +++++++++++++--------
 vdr.c    | 12 +++++++++++-
 3 files changed, 29 insertions(+), 9 deletions(-)

diff --git a/HISTORY b/HISTORY
index f5d7d095..f345f65f 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1975,3 +1975,8 @@ Video Disk Recorder Revision History
 
 - Removed signal handling and usleep(5000) from cDvbOsd::Cmd() (apparently this
   is no longer necessary with DVB driver 1.0.0pre2 or later).
+- If the primary device (as defined in setup.conf) doesn't have an MPEG decoder
+  (and thus can't be used as a primary device) VDR now scans all devices at
+  startup and uses the first one (if any) that actually has an MPEG decoder.
+  That way this will also work automatically if the primary device is implemented
+  by a plugin.
diff --git a/device.c b/device.c
index 15628cd3..0f99e13b 100644
--- a/device.c
+++ b/device.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: device.c 1.36 2003/01/03 15:41:14 kls Exp $
+ * $Id: device.c 1.37 2003/03/09 14:05:23 kls Exp $
  */
 
 #include "device.h"
@@ -106,14 +106,19 @@ bool cDevice::SetPrimaryDevice(int n)
 {
   n--;
   if (0 <= n && n < numDevices && device[n]) {
-     isyslog("setting primary device to %d", n + 1);
-     if (primaryDevice)
-        primaryDevice->MakePrimaryDevice(false);
-     primaryDevice = device[n];
-     primaryDevice->MakePrimaryDevice(true);
-     return true;
+     if (device[n]->HasDecoder()) {
+        isyslog("setting primary device to %d", n + 1);
+        if (primaryDevice)
+           primaryDevice->MakePrimaryDevice(false);
+        primaryDevice = device[n];
+        primaryDevice->MakePrimaryDevice(true);
+        return true;
+        }
+     else
+        esyslog("ERROR: device number %d has no MPEG decoder", n + 1);
      }
-  esyslog("invalid primary device number: %d", n + 1);
+  else
+     esyslog("ERROR: invalid primary device number: %d", n + 1);
   return false;
 }
 
diff --git a/vdr.c b/vdr.c
index 3e6a9ed3..50b1a290 100644
--- a/vdr.c
+++ b/vdr.c
@@ -22,7 +22,7 @@
  *
  * The project's page is at http://www.cadsoft.de/people/kls/vdr
  *
- * $Id: vdr.c 1.145 2003/02/16 10:34:24 kls Exp $
+ * $Id: vdr.c 1.146 2003/03/09 14:07:46 kls Exp $
  */
 
 #include <getopt.h>
@@ -364,6 +364,16 @@ int main(int argc, char *argv[])
   // Primary device:
 
   cDevice::SetPrimaryDevice(Setup.PrimaryDVB);
+  if (!cDevice::PrimaryDevice()) {
+     for (int i = 0; i < cDevice::NumDevices(); i++) {
+         cDevice *d = cDevice::GetDevice(i);
+         if (d && d->HasDecoder()) {
+            isyslog("trying device number %d instead", i + 1);
+            if (cDevice::SetPrimaryDevice(i + 1))
+               Setup.PrimaryDVB = i + 1;
+            }
+         }
+     }
   if (!cDevice::PrimaryDevice()) {
      const char *msg = "no primary device found - giving up!";
      fprintf(stderr, "vdr: %s\n", msg);