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Added alternative ADPCM decoding algorithm

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This commit is contained in:
Michael Becker 2014-04-16 22:30:08 -04:00
parent 3490cfe5bb
commit a0b4722cb7
2 changed files with 9 additions and 2 deletions
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8
CSharp/Applications/UniversalEditor.UserInterface.WindowsForms.DesktopApplication/UniversalEditor.UserInterface.WindowsForms.DesktopApplication.csproj
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@ -109,11 +109,15 @@
<Compile Include="MainWindow.Designer.cs">
<DependentUpon>MainWindow.cs</DependentUpon>
</Compile>
<Compile Include="OptionPanels\ApplicationOptionPanel.cs" />
<Compile Include="OptionPanels\ApplicationOptionPanel.cs">
<SubType>UserControl</SubType>
</Compile>
<Compile Include="OptionPanels\ApplicationOptionPanel.Designer.cs">
<DependentUpon>ApplicationOptionPanel.cs</DependentUpon>
</Compile>
<Compile Include="OptionPanels\Application\DocumentsOptionPanel.cs" />
<Compile Include="OptionPanels\Application\DocumentsOptionPanel.cs">
<SubType>UserControl</SubType>
</Compile>
<Compile Include="OptionPanels\Application\DocumentsOptionPanel.Designer.cs">
<DependentUpon>DocumentsOptionPanel.cs</DependentUpon>
</Compile>

3
CSharp/Plugins/UniversalEditor.Plugins.OSLib/DataFormats/Multimedia/Audio/BGM/BGMDataFormat.cs
View File

@ -69,6 +69,9 @@ namespace UniversalEditor.DataFormats.Multimedia.Audio.BGM
private static int ima9_rescale(int step, uint code)
{
/* 0,1,2,3,4,5,6,9 */
// http://wiki.multimedia.cx/index.php?title=IMA_ADPCM
return (int)(((int)code + 0.5) * step / (double)4);
int diff = step >> 3;
if ((code & 1) != 0) diff += step >> 2;
if ((code & 2) != 0) diff += step >> 1;