public static AudioDevice CreateDevice (string name) {
AudioDevice dev;
dev = TryAlsa (name);
/* if no option is found, return a silent device */
if (dev == null)
dev = new AudioDevice ();
return dev;
}
public abstract void Play (AudioDevice dev);
public override void Play (AudioDevice dev) {
int fragment_played = 0;
int total_data_played = 0;
int chunk_size = (int)dev.ChunkSize;
int count = data_len;
byte[] buffer = new byte [data_len];
byte[] chunk_to_play = new byte [chunk_size];
// Read only Au data, don't care about file header here !
stream.Position = 0; //(long)data_offset;
stream.Read (buffer, 0, data_len);
while (!IsStopped && count >= 0){
// Copy one chunk from buffer
Buffer.BlockCopy(buffer, total_data_played, chunk_to_play, 0, chunk_size);
// play that chunk, !!! the size pass to alsa the number of fragment, a fragment is a sample per channel !!!
fragment_played = dev.PlaySample (chunk_to_play, chunk_size / (frame_divider * channels));
// If alsa played something, inc the total data played and dec the data to be played
if (fragment_played > 0) {
total_data_played += (fragment_played * frame_divider * channels);
count -= (fragment_played * frame_divider * channels);
}
}
}
public virtual void Setup (AudioDevice dev) {
dev.SetFormat (Format, Channels, Rate);
}
public void Load ()
{
// can this be reused to load the same file again without re-setting the location?
if (load_completed)
return;
if (audiostream != null) {
LoadFromStream (audiostream);
} else {
LoadFromUri (sound_location);
}
// force recreate for new stream
adata = null;
adev = null;
load_completed = true;
AsyncCompletedEventArgs e = new AsyncCompletedEventArgs (null, false, this);
OnLoadCompleted (e);
if (LoadCompleted != null)
LoadCompleted (this, e);
if (use_win32_player) {
if (win32_player == null)
win32_player = new Win32SoundPlayer (mstream);
else
win32_player.Stream = mstream;
}
}
public void PlaySync ()
{
Start ();
if (mstream == null) {
SystemSounds.Beep.Play ();
return;
}
if (!use_win32_player) {
try {
if (adata == null)
adata = new WavData (mstream);
if (adev == null)
adev = AudioDevice.CreateDevice (null);
if (adata != null) {
adata.Setup (adev);
adata.Play (adev);
}
} catch {
}
} else {
win32_player.PlaySync ();
}
}
public override void Play(AudioDevice dev) {
int fragment_played = 0;
int total_data_played = 0;
int chunk_size = (int)dev.ChunkSize;
int count = data_len;
byte[] buffer = new byte[data_len];
byte[] chunk_to_play = new byte[chunk_size];
// Read only wave data, don't care about file header here !
stream.Position = data_offset;
stream.Read(buffer, 0, data_len);
while (!IsStopped && count >= 0) {
//Console.WriteLine(stream.Position + " - " + DateTime.Now.ToString());
// Copy one chunk from buffer
var readSize = buffer.Length - total_data_played < chunk_size ? buffer.Length - total_data_played : chunk_size;
if (readSize == 0) return;
Buffer.BlockCopy(buffer, total_data_played, chunk_to_play, 0, readSize);
// play that chunk, !!! the size pass to alsa the number of fragment, a fragment is a sample per channel !!!
fragment_played = dev.PlaySample(chunk_to_play, readSize / (frame_divider * channels));
// If alsa played something, inc the total data played and dec the data to be played
if (fragment_played > 0) {
total_data_played += (fragment_played * frame_divider * channels);
count -= (fragment_played * frame_divider * channels);
}
}
}
public override void Play (AudioDevice dev) {
int read;
int count = data_len;
byte[] buffer = new byte [buffer_size];
stream.Position = 0;
while (!IsStopped && count >= 0 && (read = stream.Read (buffer, 0, System.Math.Min (buffer.Length, count))) > 0) {
// FIXME: account for leftover bytes
dev.PlaySample (buffer, read/frame_divider);
count -= read;
}
}
public abstract void Play(AudioDevice dev);
public virtual void Setup(AudioDevice dev)
{
dev.SetFormat(Format, Channels, Rate);
}
public TAudioPlayer() {
adev = Mono.Audio.AudioDevice.CreateDevice(null);
th = new Thread(mainLoop);
th.Start();
}
