コード例 #1
0
		public static float[] DecodeUsingMplayer(string fileIn, int srate) {
			
			lock (_locker) {
				using (Process towav = new Process())
				{
					fileIn = Regex.Replace(fileIn, "%20", " ");
					DbgTimer t = new DbgTimer();
					t.Start();
					String curdir = System.Environment.CurrentDirectory;
					Dbg.WriteLine("Decoding: " + fileIn);
					String tempFile = System.IO.Path.GetTempFileName();
					String wav = tempFile + ".wav";
					Dbg.WriteLine("Temporary wav file: " + wav);
					
					towav.StartInfo.FileName = "./NativeLibraries\\mplayer\\mplayer.exe";
					towav.StartInfo.Arguments = " -quiet -ao pcm:fast:waveheader \""+fileIn+"\" -format floatle -af resample="+srate+":0:2,pan=1:0.5:0.5 -channels 1 -vo null -vc null -ao pcm:file=\\\""+wav+"\\\"";
					towav.StartInfo.UseShellExecute = false;
					towav.StartInfo.RedirectStandardOutput = true;
					towav.StartInfo.RedirectStandardError = true;
					towav.Start();
					towav.WaitForExit();
					
					int exitCode = towav.ExitCode;
					// 0 = succesfull
					// 1 = partially succesful
					// 2 = failed
					if (exitCode != 0) {
						string standardError = towav.StandardError.ReadToEnd();
						Console.Out.WriteLine(standardError);
						return null;
					}
					
					#if DEBUG
					string standardOutput = towav.StandardOutput.ReadToEnd();
					Console.Out.WriteLine(standardOutput);
					#endif
					
					RiffRead riff = new RiffRead(wav);
					riff.Process();
					float[] floatBuffer = riff.SoundData[0];
					try
					{
						File.Delete(tempFile);
						//File.Delete(wav);
					}
					catch (IOException io)
					{
						Console.WriteLine(io);
					}
					
					Dbg.WriteLine("Decoding Execution Time: " + t.Stop().TotalMilliseconds + " ms");
					return floatBuffer;
				}
			}
		}
コード例 #2
0
ファイル: sound_io.cs プロジェクト: remy22/AudioVSTToolbox
 public static double[][] ReadWaveFile(String wavfile, ref int channels, ref int samplecount, ref int samplerate)
 {
     RiffRead riffRead = new RiffRead(wavfile);
     riffRead.Process();
     channels = riffRead.Channels;
     samplecount = riffRead.SampleCount;
     samplerate = riffRead.SampleRate;
     return riffRead.SoundData;
 }