public Sound(string filename, float volume, bool looping)
{
ALFormat format;
int size;
int freq;
byte[] data;
Stream s;
try
{
s = File.OpenRead(filename);
}
catch (IOException e)
{
throw new Content.ContentLoadException("Could not load audio data", e);
}
data = AudioLoader.Load(s, out format, out size, out freq);
s.Close();
Initialize(data, format, size, freq, volume, looping);
}
private void PlatformLoadAudioStream(Stream s)
{
#if OPENAL && !(MONOMAC || IOS)
ALFormat format;
int size;
int freq;
var stream = s;
#if ANDROID
var needsDispose = false;
try
{
// If seek is not supported (usually an indicator of a stream opened into the AssetManager), then copy
// into a temporary MemoryStream.
if (!s.CanSeek)
{
needsDispose = true;
stream = new MemoryStream();
s.CopyTo(stream);
stream.Position = 0;
}
#endif
_data = AudioLoader.Load(stream, out format, out size, out freq);
#if ANDROID
}
finally
{
if (needsDispose)
{
stream.Dispose();
}
}
#endif
Format = format;
Size = size;
Rate = freq;
#endif
#if MONOMAC || IOS
var audiodata = new byte[s.Length];
s.Read(audiodata, 0, (int)s.Length);
using (AudioFileStream afs = new AudioFileStream(AudioFileType.WAVE))
{
afs.ParseBytes(audiodata, false);
Size = (int)afs.DataByteCount;
_data = new byte[afs.DataByteCount];
Array.Copy(audiodata, afs.DataOffset, _data, 0, afs.DataByteCount);
AudioStreamBasicDescription asbd = afs.DataFormat;
int channelsPerFrame = asbd.ChannelsPerFrame;
int bitsPerChannel = asbd.BitsPerChannel;
// There is a random chance that properties asbd.ChannelsPerFrame and asbd.BitsPerChannel are invalid because of a bug in Xamarin.iOS
// See: https://bugzilla.xamarin.com/show_bug.cgi?id=11074 (Failed to get buffer attributes error when playing sounds)
if (channelsPerFrame <= 0 || bitsPerChannel <= 0)
{
NSError err;
using (NSData nsData = NSData.FromArray(audiodata))
using (AVAudioPlayer player = AVAudioPlayer.FromData(nsData, out err))
{
channelsPerFrame = (int)player.NumberOfChannels;
bitsPerChannel = player.SoundSetting.LinearPcmBitDepth.GetValueOrDefault(16);
Rate = (float)player.SoundSetting.SampleRate;
_duration = TimeSpan.FromSeconds(player.Duration);
}
}
else
{
Rate = (float)asbd.SampleRate;
double duration = (Size / ((bitsPerChannel / 8) * channelsPerFrame)) / asbd.SampleRate;
_duration = TimeSpan.FromSeconds(duration);
}
if (channelsPerFrame == 1)
{
Format = (bitsPerChannel == 8) ? ALFormat.Mono8 : ALFormat.Mono16;
}
else
{
Format = (bitsPerChannel == 8) ? ALFormat.Stereo8 : ALFormat.Stereo16;
}
}
#endif
}
private void PlatformLoadAudioStream(Stream s, out TimeSpan duration)
{
byte[] buffer;
#if OPENAL && !(MONOMAC || IOS)
ALFormat format;
int size;
int freq;
var stream = s;
buffer = AudioLoader.Load(stream, out format, out size, out freq);
Format = format;
Size = size;
Rate = freq;
duration = TimeSpan.FromSeconds((float)size / freq);
#endif
#if MONOMAC || IOS
var audiodata = new byte[s.Length];
s.Read(audiodata, 0, (int)s.Length);
using (AudioFileStream afs = new AudioFileStream(AudioFileType.WAVE))
{
afs.ParseBytes(audiodata, false);
Size = (int)afs.DataByteCount;
buffer = new byte[afs.DataByteCount];
Array.Copy(audiodata, afs.DataOffset, buffer, 0, afs.DataByteCount);
AudioStreamBasicDescription asbd = afs.DataFormat;
int channelsPerFrame = asbd.ChannelsPerFrame;
int bitsPerChannel = asbd.BitsPerChannel;
// There is a random chance that properties asbd.ChannelsPerFrame and asbd.BitsPerChannel are invalid because of a bug in Xamarin.iOS
// See: https://bugzilla.xamarin.com/show_bug.cgi?id=11074 (Failed to get buffer attributes error when playing sounds)
if (channelsPerFrame <= 0 || bitsPerChannel <= 0)
{
NSError err;
using (NSData nsData = NSData.FromArray(audiodata))
using (AVAudioPlayer player = AVAudioPlayer.FromData(nsData, out err))
{
channelsPerFrame = (int)player.NumberOfChannels;
bitsPerChannel = player.SoundSetting.LinearPcmBitDepth.GetValueOrDefault(16);
Rate = (float)player.SoundSetting.SampleRate;
duration = TimeSpan.FromSeconds(player.Duration);
}
}
else
{
Rate = (float)asbd.SampleRate;
double durationSec = (Size / ((bitsPerChannel / 8) * channelsPerFrame)) / asbd.SampleRate;
duration = TimeSpan.FromSeconds(durationSec);
}
if (channelsPerFrame == 1)
{
Format = (bitsPerChannel == 8) ? ALFormat.Mono8 : ALFormat.Mono16;
}
else
{
Format = (bitsPerChannel == 8) ? ALFormat.Stereo8 : ALFormat.Stereo16;
}
}
#endif
// bind buffer
SoundBuffer = new OALSoundBuffer();
SoundBuffer.BindDataBuffer(buffer, Format, Size, (int)Rate);
}
private void PlatformLoadAudioStream(Stream s, out TimeSpan duration)
{
byte[] buffer;
#if OPENAL && !(MONOMAC || IOS)
ALFormat format;
int size;
int freq;
var stream = s;
buffer = AudioLoader.Load(stream, out format, out size, out freq);
Format = format;
Size = size;
Rate = freq;
var bytesPerSecond = freq;
if (format == ALFormat.Mono16 || format == ALFormat.Stereo8)
{
bytesPerSecond *= 2;
}
else if (format == ALFormat.Stereo16)
{
bytesPerSecond *= 4;
}
duration = TimeSpan.FromSeconds((float)size / bytesPerSecond);
#endif
#if MONOMAC || IOS
var audiodata = new byte[s.Length];
s.Read(audiodata, 0, (int)s.Length);
using (AudioFileStream afs = new AudioFileStream(AudioFileType.WAVE))
{
afs.ParseBytes(audiodata, false);
Size = (int)afs.DataByteCount;
buffer = new byte[afs.DataByteCount];
Array.Copy(audiodata, afs.DataOffset, buffer, 0, afs.DataByteCount);
AudioStreamBasicDescription asbd = afs.DataFormat;
int channelsPerFrame = asbd.ChannelsPerFrame;
int bitsPerChannel = asbd.BitsPerChannel;
Rate = (float)asbd.SampleRate;
double durationSec = (Size / ((bitsPerChannel / 8) * channelsPerFrame)) / asbd.SampleRate;
duration = TimeSpan.FromSeconds(durationSec);
if (channelsPerFrame == 1)
{
Format = (bitsPerChannel == 8) ? ALFormat.Mono8 : ALFormat.Mono16;
}
else
{
Format = (bitsPerChannel == 8) ? ALFormat.Stereo8 : ALFormat.Stereo16;
}
}
#endif
// bind buffer
SoundBuffer = new OALSoundBuffer();
SoundBuffer.BindDataBuffer(buffer, Format, Size, (int)Rate);
}
