public static int PlaySound(string fileName, float volume = 1.0f)
{
if (volume * seBalance <= 0f)
{
return(0);
}
//don't play more than X sound effects in one frame
if (soundIndex == playedSounds.Length)
{
return(0);
}
//don't play more than one instance of the same sound in one frame
for (int ii = 0; ii < soundIndex; ii++)
{
if (fileName == playedSounds[ii])
{
return(0);
}
}
playedSounds[soundIndex] = fileName;
soundIndex++;
IntPtr stbVorbisData = FAudio.stb_vorbis_open_filename(fileName, out int error, IntPtr.Zero);
FAudio.stb_vorbis_info fileInfo = FAudio.stb_vorbis_get_info(stbVorbisData);
long total_samples = FAudio.stb_vorbis_stream_length_in_samples(stbVorbisData);
long total_frames = total_samples * 60 / fileInfo.sample_rate;
float[] chunk = new float[fileInfo.channels * total_samples];
int framesRead = FAudio.stb_vorbis_get_samples_float_interleaved(stbVorbisData, fileInfo.channels, chunk, fileInfo.channels * (int)total_samples);
FAudio.stb_vorbis_close(stbVorbisData);
DynamicSoundEffectInstance soundStream = new DynamicSoundEffectInstance(
(int)fileInfo.sample_rate,
(fileInfo.channels == 1) ? AudioChannels.Mono : AudioChannels.Stereo
);
soundStream.Volume = volume * seBalance;
soundStream.SubmitFloatBufferEXT(chunk, 0, framesRead * fileInfo.channels);
soundStream.Play();
return((int)total_frames);
}
public LoopedSong(string fileName)
{
stbVorbisData = FAudio.stb_vorbis_open_filename(fileName, out int error, IntPtr.Zero);
FAudio.stb_vorbis_info fileInfo = FAudio.stb_vorbis_get_info(stbVorbisData);
Channels = fileInfo.channels;
SampleRate = (int)fileInfo.sample_rate;
Name = Path.GetFileNameWithoutExtension(fileName);
long total_samples = FAudio.stb_vorbis_stream_length_in_samples(stbVorbisData);
FAudio.stb_vorbis_comment comments = FAudio.stb_vorbis_get_comment(stbVorbisData);
loopStart = 0;
loopEnd = (int)total_samples;
int loopLength = 0;
Tags = new Dictionary <string, string>();
for (int ii = 0; ii < comments.comment_list_length; ii++)
{
IntPtr ptr = new IntPtr(comments.comment_list.ToInt64() + IntPtr.Size * ii);
IntPtr strPtr = (IntPtr)Marshal.PtrToStructure(ptr, typeof(IntPtr));
string comment = Marshal.PtrToStringUTF8(strPtr);
string[] split = comment.Split('=', 2);
string label = split.Length > 0 ? split[0] : "";
string val = split.Length > 1 ? split[1] : "";
if (label != "")
{
Tags.Add(label, val);
}
if (label == "LOOPSTART")
{
loopStart = Convert.ToInt32(val);
}
else if (label == "LOOPLENGTH")
{
loopLength = Convert.ToInt32(val);
}
}
if (loopStart > -1)
{
if (loopLength > 0)
{
loopEnd = loopStart + loopLength;
}
}
pcmPosition = 0;
soundStream = new DynamicSoundEffectInstance(
SampleRate,
(Channels == 1) ? AudioChannels.Mono : AudioChannels.Stereo
);
chunk = new float[chunkSize];
}
