Пример #1
0
        public void Play(string path, IMainWindowServices mainWindow)
        {
            Stream          stream = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read, Constants.BufferSize);
            AudioFileReader reader = null;

            try
            {
                reader = new WAVReader(stream);
            }
            catch (FormatException)
            {
                try
                {
                    stream.Seek(0, SeekOrigin.Begin);
                    reader = new AIFFReader(stream);
                }
                catch (FormatException)
                {
                    MessageBox.Show("File is not a recognized AIFF or WAV file.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    return;
                }
            }

            const double BufferDuration = 2;

#if true // prevents "Add New Data Source..." from working
            state = AudioFilePlayGeneratorParams <OutputDeviceDestination, OutputDeviceArguments> .Do(
                mainWindow.DisplayName,
                OutputDeviceEnumerator.OutputDeviceGetDestination,
                OutputDeviceEnumerator.CreateOutputDeviceDestinationHandler,
                new OutputDeviceArguments(BufferDuration),
                AudioFilePlayGeneratorParams <OutputDeviceDestination, OutputDeviceArguments> .MainLoop,
                generatorParams = new AudioFilePlayGeneratorParams <OutputDeviceDestination, OutputDeviceArguments>(
                    reader),
                AudioFilePlayGeneratorParams <OutputDeviceDestination, OutputDeviceArguments> .Completion,
                mainWindow,
                reader.NumChannels,
                reader.NumBits,
                reader.SamplingRate,
                1 /*oversampling*/,
                true /*showProgressWindow*/,
                true /*modal*/);
#endif
        }
Пример #2
0
        private void buttonPlay_Click(object sender, EventArgs e)
        {
            MainWindow.DoAutosaveGlobally();

            if (!mainWindow.MakeUpToDate())
            {
                return;
            }

            Synthesizer.EffectSpecListRec effectSpec;
            if (!BuildThis(out effectSpec))
            {
                return;
            }

            const double BufferDuration = 2f;

#if false
            if (state != null)
            {
                state.stopper.Stop();
            }
            state = null;
#endif

            Stream          stream = new FileStream(textBoxAudioFilePath.Text, FileMode.Open, FileAccess.Read, FileShare.Read, Constants.BufferSize);
            AudioFileReader reader = null;
            try
            {
                reader = new WAVReader(stream);
            }
            catch (FormatException)
            {
                try
                {
                    stream.Seek(0, SeekOrigin.Begin);
                    reader = new AIFFReader(stream);
                }
                catch (FormatException)
                {
                    MessageBox.Show("File is not a recognized AIFF or WAV file.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    return;
                }
            }

#if true // prevents "Add New Data Source..." from working
#if false
            state =
#endif
            PlayFileWithEffectsGeneratorParams <OutputDeviceDestination, OutputDeviceArguments> .Do(
                Path.GetFileNameWithoutExtension(textBoxAudioFilePath.Text),
                OutputDeviceEnumerator.OutputDeviceGetDestination,
                OutputDeviceEnumerator.CreateOutputDeviceDestinationHandler,
                new OutputDeviceArguments(BufferDuration),
                PlayFileWithEffectsGeneratorParams <OutputDeviceDestination, OutputDeviceArguments> .MainLoop,
#if false
                generatorParams =
#endif
                new PlayFileWithEffectsGeneratorParams <OutputDeviceDestination, OutputDeviceArguments>(
                    stream,
                    reader,
                    effectSpec,
                    mainWindow),
                PlayFileWithEffectsGeneratorParams <OutputDeviceDestination, OutputDeviceArguments> .Completion,
                mainWindow,
                reader.NumChannels,
                reader.NumBits,
                reader.SamplingRate,
                1 /*oversampling*/,
                true /*showProgressWindow*/,
                true /*modal*/);
#endif
        }
Пример #3
0
        /* this routine asks for a file and tries to import the contents of that */
        /* file as a WAV sample.  it reports any errors to the user. */
        public static bool ImportWAVSample(
            Registration registration,
            IMainWindowServices mainWindow,
            out int index)
        {
            index = -1;

            string path;

            using (OpenFileDialog dialog = new OpenFileDialog())
            {
                dialog.Title  = "Import WAV Sample";
                dialog.Filter = "WAV Audio File (.wav)|*.wav|Any File Type (*)|*";
                DialogResult result = dialog.ShowDialog();
                if (result != DialogResult.OK)
                {
                    return(false);
                }
                path = dialog.FileName;
            }

            using (Stream input = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read, Constants.BufferSize))
            {
                try
                {
                    using (AudioFileReader reader = new WAVReader(input, true /*allowTruncated*/))
                    {
                        NumBitsType     numBits      = reader.NumBits;
                        NumChannelsType numChannels  = reader.NumChannels;
                        int             numFrames    = reader.NumFrames;
                        int             samplingRate = reader.SamplingRate;

                        float[] sampleData;
                        try
                        {
                            sampleData = new float[(numFrames + 1) * reader.PointsPerFrame];
                        }
                        catch (OutOfMemoryException)
                        {
                            throw new AudioFileReaderException(AudioFileReaderErrors.OutOfMemory);
                        }

                        reader.ReadPoints(sampleData, 0, numFrames * reader.PointsPerFrame);

                        if (reader.Truncated)
                        {
                            const string ErrorTooShort = "The file appears to be incomplete. Appending silence to end of sample data.";
                            MessageBox.Show(ErrorTooShort, "Import Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                        }

                        SampleObjectRec ReturnedSampleObject = new SampleObjectRec(
                            mainWindow.Document,
                            sampleData,
                            numFrames,
                            numBits,
                            numChannels,
                            0,
                            0,
                            0,
                            0,
                            0,
                            0,
                            0,
                            samplingRate,
                            Constants.MIDDLEC);
                        ReturnedSampleObject.Name = Path.GetFileName(path);

                        index = mainWindow.Document.SampleList.Count;
                        mainWindow.Document.SampleList.Add(ReturnedSampleObject);

                        new SampleWindow(registration, ReturnedSampleObject, mainWindow).Show();

                        return(true);
                    }
                }
                catch (AudioFileReaderException exception)
                {
                    MessageBox.Show(AudioFileReaderException.MessageFromError(exception.Error), "Import Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                }
            }

            return(false);
        }