static AudioTrack CreateProgressTone(Context context)
{
AssetFileDescriptor fd = context.Resources.OpenRawResourceFd(Resource.Raw.progress_tone);
int length = (int)fd.Length;
AudioTrack audioTrack = new AudioTrack(Stream.VoiceCall,
SAMPLE_RATE,
ChannelOut.Mono,
Encoding.Pcm16bit,
length,
AudioTrackMode.Static);
byte[] data = new byte[length];
ReadFileToBytes(fd, data);
audioTrack.Write(data, 0, data.Length);
audioTrack.SetLoopPoints(0, data.Length / 2, 30);
return(audioTrack);
}
private void createPlayInstance()
{
var encoding = sound.bitDepth == 16 ? Encoding.Pcm16bit : Encoding.Pcm8bit;
totalSamples = sound.data.Length;
if (sound.bitDepth == 16)
{
totalSamples /= 2;
}
if (sound.channels == 2)
{
totalSamples /= 2;
}
instance = new AudioTrack(Stream.Music, sound.sampleRate, sound.channels == 2 ? ChannelConfiguration.Stereo : ChannelConfiguration.Mono, encoding, sound.data.Length, AudioTrackMode.Static);
instance.Write(sound.data, 0, sound.data.Length);
if (looped)
{
instance.SetLoopPoints(0, totalSamples, -1);
}
}
public static AudioTrack GetAudioTrack(SoundBuffer soundBuffer, bool isLooped)
{
if (!isLooped && Mixer.EnableAudioTrackCaching && m_audioTracks.Count >= 16)
{
foreach (AudioTrackData audioTrack2 in m_audioTracks)
{
if (audioTrack2.IsAvailable && audioTrack2.SoundBuffer == soundBuffer)
{
audioTrack2.IsAvailable = false;
m_cacheHits++;
LogCacheStats();
return(audioTrack2.AudioTrack);
}
}
AudioTrackData audioTrackData = null;
foreach (AudioTrackData audioTrack3 in m_audioTracks)
{
if (audioTrack3.IsAvailable && audioTrack3.SoundBuffer.ChannelsCount == soundBuffer.ChannelsCount && audioTrack3.SoundBuffer.SamplingFrequency == soundBuffer.SamplingFrequency && audioTrack3.BytesCount >= soundBuffer.m_data.Length && (audioTrackData == null || audioTrack3.BytesCount <= audioTrackData.BytesCount))
{
audioTrackData = audioTrack3;
}
}
if (audioTrackData != null)
{
if (m_buffer == null || m_buffer.Length < audioTrackData.BytesCount)
{
m_buffer = new byte[audioTrackData.BytesCount];
}
Array.Copy(soundBuffer.m_data, 0, m_buffer, 0, soundBuffer.m_data.Length);
Array.Clear(m_buffer, soundBuffer.m_data.Length, audioTrackData.BytesCount - soundBuffer.m_data.Length);
audioTrackData.AudioTrack.Write(m_buffer, 0, audioTrackData.BytesCount);
audioTrackData.SoundBuffer = soundBuffer;
audioTrackData.IsAvailable = false;
m_cacheHitsWithWrite++;
LogCacheStats();
return(audioTrackData.AudioTrack);
}
bool flag = true;
foreach (AudioTrackData audioTrack4 in m_audioTracks)
{
if (audioTrack4.BytesCount < soundBuffer.m_data.Length)
{
flag = false;
break;
}
}
if (flag)
{
m_cacheFulls++;
Log.Warning("AudioTrackCache full, no audio tracks available.");
LogCacheStats();
return(null);
}
}
AudioTrack audioTrack = new AudioTrack(Stream.Music, soundBuffer.SamplingFrequency, (soundBuffer.ChannelsCount == 1) ? ChannelOut.FrontLeft : ChannelOut.Stereo, Encoding.Pcm16bit, soundBuffer.m_data.Length, AudioTrackMode.Static);
// AudioTrack audioTrack = new AudioTrack(new AudioAttributes.Builder().SetUsage(AudioUsageKind.Media).SetContentType(AudioContentType.Music).Build(),new AudioFormat(), soundBuffer.m_data.Length, AudioTrackMode.Static,0);
if (audioTrack.State != 0)
{
audioTrack.Write(soundBuffer.m_data, 0, soundBuffer.m_data.Length);
if (!isLooped)
{
m_audioTracks.Add(new AudioTrackData
{
AudioTrack = audioTrack,
SoundBuffer = soundBuffer,
BytesCount = soundBuffer.m_data.Length,
IsAvailable = false
});
}
else
{
Mixer.CheckTrackStatus(audioTrack.SetLoopPoints(0, soundBuffer.SamplesCount, -1));
}
}
else
{
audioTrack.Release();
audioTrack = null;
Log.Warning("Failed to create Cache AudioTrack.");
}
m_cacheMisses++;
if (Mixer.EnableAudioTrackCaching && m_cacheMisses > 200 && m_cacheMisses % 100 == 0)
{
Log.Warning("Over {0} AudioTrack objects created.", m_cacheMisses);
}
LogCacheStats();
return(audioTrack);
}
