From 4c11561fe36280a2b99c08a13fb528457d534f77 Mon Sep 17 00:00:00 2001
From: Jean-Baptiste Mardelle <jb@kdenlive.org>
Date: Tue, 5 Jun 2012 19:00:22 +0200
Subject: [PATCH] Disable blackmagic support if no card found

---
 src/kdenlivesettings.kcfg | 5 +++++
 src/renderer.cpp          | 4 ++++
 2 files changed, 9 insertions(+)

diff --git a/src/kdenlivesettings.kcfg b/src/kdenlivesettings.kcfg
index 92c47373..7c68c51f 100644
--- a/src/kdenlivesettings.kcfg
+++ b/src/kdenlivesettings.kcfg
@@ -496,6 +496,11 @@
       <label>Additionnal dvgrab parameters.</label>
       <default></default>
     </entry>
+
+    <entry name="decklink_device_found" type="Bool">
+      <label>Enable Blackmagic decklink support.</label>
+      <default>true</default>
+    </entry>
     
     <entry name="decklink_capturedevice" type="UInt">
       <label>default HDMI capture device.</label>
diff --git a/src/renderer.cpp b/src/renderer.cpp
index f4075c16..3f423aea 100644
--- a/src/renderer.cpp
+++ b/src/renderer.cpp
@@ -4404,6 +4404,7 @@ const QString Render::activeClipId()
 //static 
 bool Render::getBlackMagicDeviceList(KComboBox *devicelist)
 {
+    if (!KdenliveSettings::decklink_device_found()) return false;
     Mlt::Profile profile;
     Mlt::Producer bm(profile, "decklink");
     int found_devices = 0;
@@ -4411,6 +4412,7 @@ bool Render::getBlackMagicDeviceList(KComboBox *devicelist)
 	bm.set("list_devices", 1);
 	found_devices = bm.get_int("devices");
     }
+    else KdenliveSettings::setDecklink_device_found(false);
     if (found_devices <= 0) {
 	devicelist->setEnabled(false);
 	return false;
@@ -4425,6 +4427,7 @@ bool Render::getBlackMagicDeviceList(KComboBox *devicelist)
 
 bool Render::getBlackMagicOutputDeviceList(KComboBox *devicelist)
 {
+    if (!KdenliveSettings::decklink_device_found()) return false;
     Mlt::Profile profile;
     Mlt::Consumer bm(profile, "decklink");
     int found_devices = 0;
@@ -4432,6 +4435,7 @@ bool Render::getBlackMagicOutputDeviceList(KComboBox *devicelist)
 	bm.set("list_devices", 1);
 	found_devices = bm.get_int("devices");
     }
+    else KdenliveSettings::setDecklink_device_found(false);
     if (found_devices <= 0) {
 	devicelist->setEnabled(false);
 	return false;
-- 
2.39.2