public static AudioClip DncodeAdpcmData(byte[] adpcmData)
{
if (adpcmData == null || adpcmData.Length < 8)
{
return(null);
}
try {
//channels
byte[] bytes = new byte[4];
Buffer.BlockCopy(adpcmData, 0, bytes, 0, bytes.Length);
int channels = (int)BitConverter.ToUInt32(bytes, 0);
//frequency
bytes = new byte[4];
Buffer.BlockCopy(adpcmData, 4, bytes, 0, bytes.Length);
int frequency = (int)BitConverter.ToUInt32(bytes, 0);
//adpcmData
bytes = new byte[adpcmData.Length - 8];
Buffer.BlockCopy(adpcmData, 8, bytes, 0, bytes.Length);
short[] data = adpcm.Decode(bytes);
return(RTMAudioManager.ShortsToAudioClip(data, channels, frequency, false, 1.0f));
} catch (Exception ex) {
Debug.LogWarning(ex);
}
return(null);
}
private AudioClip GetAudioClip()
{
lock (self_locker) {
if (this._clipRecord == null)
{
return(null);
}
short[] data = RTMAudioManager.AudioClipToShorts(this._clipRecord, 1.0f);
return(RTMAudioManager.ShortsToAudioClip(data, this._clipRecord.channels, this._clipRecord.frequency, false, 1.0f));
}
}
public static byte[] EncodeAudioClip(AudioClip clip)
{
byte[] bytes;
short[] data;
int channels = 1;
int frequency = RTMMicrophone.SAMPLE_RATE;
if (clip == null)
{
return(null);
}
channels = clip.channels;
frequency = clip.frequency;
try {
data = RTMAudioManager.AudioClipToShorts(clip, 1.0f);
if (data == null)
{
return(null);
}
byte[] adpcmData = adpcm.Encode(data);
if (adpcmData == null || adpcmData.Length == 0)
{
return(null);
}
using (MemoryStream stream = new MemoryStream()) {
//channels
bytes = BitConverter.GetBytes(channels);
stream.Write(bytes, 0, bytes.Length);
//frequency
bytes = BitConverter.GetBytes(frequency);
stream.Write(bytes, 0, bytes.Length);
//adpcmData
stream.Write(adpcmData, 0, adpcmData.Length);
bytes = stream.ToArray();
}
return(bytes);
} catch (Exception ex) {
Debug.LogWarning(ex);
}
return(null);
}
