/// <summary>
/// Инициализация и первоначальная загрузка аудио данных
/// </summary>
/// <param name="parLinkedOpenTkSound">Аудио данные OpenTK</param>
public void InitAudioData(AssetDataOpenTkWaveSound parLinkedOpenTkSound)
{
OggPlayerInstance = new OggPlayerFBN(); // создаем проигрыватель
Console.WriteLine($"Setting file path {parLinkedOpenTkSound.ActualAssetMetadata.FilePath}");
OggPlayerInstance.SetCurrentFile(parLinkedOpenTkSound.ActualAssetMetadata.FilePath);
}
/// <summary>
/// На паузе ли сейчас воспроизведение?
/// </summary>
/// <param name="parWaveSound">Аудио ассет OpenTK</param>
public bool IsPaused(AssetDataOpenTkWaveSound parWaveSound)
{
return(parWaveSound.AudioFormatProvider.IsPaused());
}
/// <summary>
/// Инициализация и первоначальная загрузка аудио данных
/// </summary>
/// <param name="parLinkedOpenTkSound">Аудио данные OpenTK</param>
public void InitAudioData(AssetDataOpenTkWaveSound parOpenTkWaveSound)
{
_linkedAssetData = parOpenTkWaveSound;
AlBuffer = AL.GenBuffer();
AlSource = AL.GenSource();
OpenAlManager.CheckForError("AL loading not ready...");
using (MemoryStream ms = new MemoryStream(AudioBinaryData))
{
using (BinaryReader br = new BinaryReader(ms))
{
// проверка заголовка RIFF
string signature = new string(br.ReadChars(4));
if (signature != "RIFF")
{
throw new NotSupportedException("Specified stream is not a wave file.");
}
int riffChunckSize = br.ReadInt32();
string format = new string(br.ReadChars(4));
if (format != "WAVE")
{
throw new NotSupportedException("Specified stream is not a wave file.");
}
// проверка заголовка WAVE
string formatSignature = new string(br.ReadChars(4));
if (formatSignature != "fmt ")
{
throw new NotSupportedException("Specified wave file is not supported.");
}
int formatChunkSize = br.ReadInt32();
int audioFormat = br.ReadInt16();
int numChannels = br.ReadInt16();
int sampleRate = br.ReadInt32();
int byteRate = br.ReadInt32();
int blockAlign = br.ReadInt16();
int bitsPerSample = br.ReadInt16();
string dataSignature = new string(br.ReadChars(4));
if (dataSignature != "data")
{
throw new NotSupportedException("Specified wave file is not supported.");
}
int dataChunkSize = br.ReadInt32();
Channels = numChannels;
BitsPerSample = bitsPerSample;
SampleRate = sampleRate;
AudioBinaryData = br.ReadBytes((int)dataChunkSize);
}
}
Console.WriteLine(
$"Binary data length: {AudioBinaryData.Length}, Sample rate: {SampleRate}, {Environment.NewLine}BitsPerSample: {BitsPerSample}");
AL.BufferData(AlBuffer, GetSoundFormat(Channels, BitsPerSample), AudioBinaryData, AudioBinaryData.Length,
SampleRate);
if (!OpenAlManager.CheckForError($"Loading error: {_linkedAssetData.ActualAssetMetadata.FilePath}"))
{
}
AL.Source(AlSource, ALSourcei.Buffer, AlBuffer);
if (!OpenAlManager.CheckForError($"Loading error: {_linkedAssetData.ActualAssetMetadata.FilePath}"))
{
Console.WriteLine($"AL: Audio data {AlSource}:{AlBuffer} created in memory");
}
}
/// <summary>
/// Сбросить и перемотать воспроизведение
/// </summary>
/// <param name="parWaveSound">Аудио ассет OpenTK</param>
public void Rewind(AssetDataOpenTkWaveSound parWaveSound)
{
parWaveSound.AudioFormatProvider.Reset();
}
/// <summary>
/// Остановить воспроизведение
/// </summary>
/// <param name="parWaveSound">Аудио ассет OpenTK</param>
public void Stop(AssetDataOpenTkWaveSound parWaveSound)
{
parWaveSound.AudioFormatProvider.Stop();
}
/// <summary>
/// Приостановить воспроизведение
/// </summary>
/// <param name="parWaveSound">Аудио ассет OpenTK</param>
public void Pause(AssetDataOpenTkWaveSound parWaveSound)
{
parWaveSound.AudioFormatProvider.Pause();
}
/// <summary>
/// Воспроизвести
/// </summary>
/// <param name="parWaveSound">Аудио ассет OpenTK</param>
/// <param name="parIsLooped">Зациклить воспроизведение?</param>
public void Play(AssetDataOpenTkWaveSound parWaveSound, bool parIsLooped = false)
{
parWaveSound.AudioFormatProvider.Play(parIsLooped);
}
/// <summary>
/// Установить флаг-признак зацикливания воспроизведения
/// </summary>
/// <param name="parWaveSound">Аудио ассет OpenTK</param>
/// <param name="parIsLooped">Значение признака зацикливания воспроизведения</param>
public void SetIsLooped(AssetDataOpenTkWaveSound parWaveSound, bool parIsLooped)
{
parWaveSound.AudioFormatProvider.SetIsLooped(parIsLooped);
}
