Prevent stuttering audio when CPU is busy with other tasks

DeveloperToolsForUPnPTechnologies/UPNPAVCDSML/MediaObject.cs

@@ -1757,6 +1757,8 @@ out ArrayList proposedChildren
 				instantiateTheseForChildItems, 
 				instantiateTheseForChildContainers
 				);
+			if (String.IsNullOrEmpty(this.Title)) {
+				this.Title = "(no title found)";
 
 			this.ThrowExceptionIfBadTitle(this.Title);
 			this.ThrowExceptionIfBadClass(this.Class);	

SWYH Installer.iss

@@ -1,17 +1,22 @@
+; Script generated by the Inno Setup Script Wizard.
+; SEE THE DOCUMENTATION FOR DETAILS ON CREATING INNO SETUP SCRIPT FILES!
+
 #define MyAppName "Stream What You Hear (SWYH)"
+#define MyAppVersion "1.5"
 #define MyAppPublisher "Sebastien.warin.fr"
 #define MyAppURL "http://www.streamwhatyouhear.com"
 #define MyAppExeName "SWYH.exe"
 
-; Updated by the build server
-#define ShortVersion "1.0"
-#define FullVersion "1.0-dev"
+#define FullVersion "1.5.217.1"
 
 [Setup]
+; NOTE: The value of AppId uniquely identifies this application.
+; Do not use the same AppId value in installers for other applications.
+; (To generate a new GUID, click Tools | Generate GUID inside the IDE.)
 AppId={{5FBEA9D3-668E-4B88-BF6C-E1BCF441ECFD}
 AppName={#MyAppName}
-AppVersion={#ShortVersion}
-AppVerName={#MyAppName} {#FullVersion}
+AppVersion={#MyAppVersion}
+;AppVerName={#MyAppName} {#MyAppVersion}
 AppPublisher={#MyAppPublisher}
 AppPublisherURL={#MyAppURL}
 AppSupportURL={#MyAppURL}
@@ -24,6 +29,7 @@ OutputBaseFilename=SWYH_{#FullVersion}
 SetupIconFile=SWYH\Resources\Icons\swyh128.ico
 Compression=lzma
 SolidCompression=yes
+ArchitecturesInstallIn64BitMode=x64
 
 [Languages]
 Name: "english"; MessagesFile: "compiler:Default.isl"

SWYH.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 15
-VisualStudioVersion = 15.0.28307.645
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.29403.142
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SWYH", "SWYH\SWYH.csproj", "{9F7F5728-3DC1-4FA2-8D4B-F91AA3ABA754}"
 EndProject
@@ -63,8 +63,8 @@ Global
 		{584ED187-8F2A-4B58-A266-85F3F212B092}.Release|Any CPU.Build.0 = Release|Any CPU
 		{584ED187-8F2A-4B58-A266-85F3F212B092}.Release|Mixed Platforms.ActiveCfg = Release|Any CPU
 		{584ED187-8F2A-4B58-A266-85F3F212B092}.Release|Mixed Platforms.Build.0 = Release|Any CPU
-		{584ED187-8F2A-4B58-A266-85F3F212B092}.Release|x64.ActiveCfg = Release|x64
-		{584ED187-8F2A-4B58-A266-85F3F212B092}.Release|x64.Build.0 = Release|x64
+		{584ED187-8F2A-4B58-A266-85F3F212B092}.Release|x64.ActiveCfg = Release|Any CPU
+		{584ED187-8F2A-4B58-A266-85F3F212B092}.Release|x64.Build.0 = Release|Any CPU
 		{584ED187-8F2A-4B58-A266-85F3F212B092}.Release|x86.ActiveCfg = Release|Any CPU
 		{B2439738-5F46-4E59-95A1-92C3DF38696F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{B2439738-5F46-4E59-95A1-92C3DF38696F}.Debug|Any CPU.Build.0 = Debug|Any CPU
@@ -77,6 +77,7 @@ Global
 		{B2439738-5F46-4E59-95A1-92C3DF38696F}.Release|Mixed Platforms.ActiveCfg = Release|Any CPU
 		{B2439738-5F46-4E59-95A1-92C3DF38696F}.Release|Mixed Platforms.Build.0 = Release|Any CPU
 		{B2439738-5F46-4E59-95A1-92C3DF38696F}.Release|x64.ActiveCfg = Release|Any CPU
+		{B2439738-5F46-4E59-95A1-92C3DF38696F}.Release|x64.Build.0 = Release|Any CPU
 		{B2439738-5F46-4E59-95A1-92C3DF38696F}.Release|x86.ActiveCfg = Release|Any CPU
 		{E01B6019-ACC6-40A6-A511-48D285D51C40}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{E01B6019-ACC6-40A6-A511-48D285D51C40}.Debug|Any CPU.Build.0 = Debug|Any CPU
@@ -89,6 +90,7 @@ Global
 		{E01B6019-ACC6-40A6-A511-48D285D51C40}.Release|Mixed Platforms.ActiveCfg = Release|Any CPU
 		{E01B6019-ACC6-40A6-A511-48D285D51C40}.Release|Mixed Platforms.Build.0 = Release|Any CPU
 		{E01B6019-ACC6-40A6-A511-48D285D51C40}.Release|x64.ActiveCfg = Release|Any CPU
+		{E01B6019-ACC6-40A6-A511-48D285D51C40}.Release|x64.Build.0 = Release|Any CPU
 		{E01B6019-ACC6-40A6-A511-48D285D51C40}.Release|x86.ActiveCfg = Release|Any CPU
 		{8EA0E595-45EC-40C1-82CE-269F4FA9EBB3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{8EA0E595-45EC-40C1-82CE-269F4FA9EBB3}.Debug|Any CPU.Build.0 = Debug|Any CPU
@@ -101,6 +103,7 @@ Global
 		{8EA0E595-45EC-40C1-82CE-269F4FA9EBB3}.Release|Mixed Platforms.ActiveCfg = Release|Any CPU
 		{8EA0E595-45EC-40C1-82CE-269F4FA9EBB3}.Release|Mixed Platforms.Build.0 = Release|Any CPU
 		{8EA0E595-45EC-40C1-82CE-269F4FA9EBB3}.Release|x64.ActiveCfg = Release|Any CPU
+		{8EA0E595-45EC-40C1-82CE-269F4FA9EBB3}.Release|x64.Build.0 = Release|Any CPU
 		{8EA0E595-45EC-40C1-82CE-269F4FA9EBB3}.Release|x86.ActiveCfg = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
@@ -113,6 +116,6 @@ Global
 		{8EA0E595-45EC-40C1-82CE-269F4FA9EBB3} = {D1A9AE0B-AAC3-402B-A9BE-42F881FCC9B8}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
-		SolutionGuid = {2367C55F-27F9-4D0D-97E6-D66076184A94}
+		SolutionGuid = {FB58350D-0EA3-4C2B-9033-86B52E8BE09A}
 	EndGlobalSection
 EndGlobal

SWYH/App.xaml.cs

@@ -33,6 +33,7 @@ namespace SWYH
     using System.Linq;
     using System.Net;
     using System.Reflection;
+    using System.Runtime.InteropServices;
     using System.Text;
     using System.Threading;
     using System.Threading.Tasks;
@@ -61,6 +62,18 @@ public partial class App : Application
         private System.Windows.Forms.ToolStripMenuItem searchingItem = null;
         private bool directClose = false;   //Skip the statements in Application_Exit function.
 
+        private uint m_previousExecutionState;  // cf. SetThreadExecutionState
+
+        private static class NativeMethods
+        {
+            // Import SetThreadExecutionState Win32 API and necessary flags
+            [DllImport("kernel32.dll")]
+            public static extern uint SetThreadExecutionState(uint esFlags);
+            public const uint ES_CONTINUOUS = 0x80000000;
+            public const uint ES_SYSTEM_REQUIRED = 0x00000001;
+        }
+
+
         private void Application_Startup(object sender, StartupEventArgs e)
         {
             var startTest = 0;
@@ -112,6 +125,19 @@ private void Application_Startup(object sender, StartupEventArgs e)
                     notifyIcon.ShowBalloonTip(2000, "Stream What You Hear is running", "Right-click on this icon to show the menu !", System.Windows.Forms.ToolTipIcon.Info);
                 }
             }
+            // raise priority a bit above normal user tasks
+            using (Process p = Process.GetCurrentProcess())
+            {
+                p.PriorityClass = ProcessPriorityClass.AboveNormal;
+            }
+            // Set new state to prevent system sleep (note: still allows screen saver)
+            m_previousExecutionState = NativeMethods.SetThreadExecutionState(NativeMethods.ES_CONTINUOUS | NativeMethods.ES_SYSTEM_REQUIRED);
+            if (0 == m_previousExecutionState) {
+                System.Windows.Forms.MessageBox.Show("Call to SetThreadExecutionState failed unexpectedly.", "Stream What You hear");
+                // No way to recover; fail gracefully
+                this.Shutdown();
+            }
+
         }
 
         private void InitializeUI()
@@ -310,6 +336,11 @@ private void Application_Exit(object sender, ExitEventArgs e)
                     this.notifyIcon.Dispose();
                 }
             }
+            // Restore previous state
+            if (0 == NativeMethods.SetThreadExecutionState(m_previousExecutionState)) {
+                // No way to recover; already exiting
+            }
+
         }
     }
 }

SWYH/Properties/AssemblyInfo.cs

@@ -22,10 +22,14 @@
  */
 
 using System.Reflection;
+using System.Resources;
+using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using System.Windows;
 
-[assembly: Guid("2ecd245f-4268-48ee-b0f1-0706ead1ba42")]
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
 [assembly: AssemblyTitle("Stream What You Hear")]
 [assembly: AssemblyDescription("Stream What You Hear (SWYH) is a Windows application to stream the sound from your PC to an UPnP / DLNA device")]
 [assembly: AssemblyConfiguration("")]
@@ -34,8 +38,22 @@
 [assembly: AssemblyCopyright("Copyright © 2012-2019 Sebastien.warin.fr ans others")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
 [assembly: ComVisible(false)]
 
+//In order to begin building localizable applications, set 
+//<UICulture>CultureYouAreCodingWith</UICulture> in your .csproj file
+//inside a <PropertyGroup>.  For example, if you are using US english
+//in your source files, set the <UICulture> to en-US.  Then uncomment
+//the NeutralResourceLanguage attribute below.  Update the "en-US" in
+//the line below to match the UICulture setting in the project file.
+
+//[assembly: NeutralResourcesLanguage("en-US", UltimateResourceFallbackLocation.Satellite)]
+
+
 [assembly: ThemeInfo(
     ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
                                      //(used if a resource is not found in the page, 
@@ -45,7 +63,17 @@
                                               // app, or any theme specific resource dictionaries)
 )]
 
-// Version 10.0 for local development
-// Automatically update by the build pipeline with GitVersion
-[assembly: AssemblyVersion("10.0.0.0")]
-[assembly: AssemblyFileVersion("10.0.0.0")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.5.1.1")]
+[assembly: AssemblyFileVersion("1.5.217.1")] // MAJOR.minor.BuildDate.Release (Si Release impaire = BETA) || http://www.epochconverter.com/epoch/daynumbers.php
+[assembly: GuidAttribute("2ecd245f-4268-48ee-b0f1-0706ead1ba42")]