public static short[] ADPCMToPCM16(byte[] data)
{
var decoder = new ADPCMDecoder(data);
short[] buffer = new short[(data.Length - 4) * 2];
for (int i = 0; i < buffer.Length; i++)
{
buffer[i] = decoder.GetSample();
}
return(buffer);
}
public AudioViewer(IDevice ADevice, IReadOnlyList <IService> services)
{
AllSamples = new List <short>();
Decoder = new ADPCMDecoder(32000 / 10);
Player = DependencyService.Get <IPCMAudio>();
BleDevice = ADevice;
InitUI();
service = services.First((s) => s.Id == GUID_SERVICE);
Decoder.PCMOutput += Decoder_PCMOutput;
Read();
}
public void StartPCM(SWAR.SWAV swav, int noteDuration)
{
Type = InstrumentType.PCM;
_dataOffset = 0;
_swav = swav;
if (swav.Format == SWAVFormat.ADPCM)
{
_adpcmDecoder = new ADPCMDecoder(swav.Samples);
}
BaseTimer = swav.Timer;
Start(noteDuration);
}
public bool StartPCM(SWD localswd, SWD masterswd, byte voice, int key, uint noteLength)
{
SWD.IProgramInfo programInfo = localswd.Programs.ProgramInfos[voice];
if (programInfo != null)
{
for (int i = 0; i < programInfo.SplitEntries.Length; i++)
{
SWD.ISplitEntry split = programInfo.SplitEntries[i];
if (key >= split.LowKey && key <= split.HighKey)
{
sample = masterswd.Samples[split.SampleId];
Key = (byte)key;
RootKey = split.SampleRootKey;
BaseTimer = (ushort)(NDS.Utils.ARM7_CLOCK / sample.WavInfo.SampleRate);
if (sample.WavInfo.SampleFormat == SampleFormat.ADPCM)
{
adpcmDecoder = new ADPCMDecoder(sample.Data);
}
//attackVolume = sample.WavInfo.AttackVolume == 0 ? split.AttackVolume : sample.WavInfo.AttackVolume;
//attack = sample.WavInfo.Attack == 0 ? split.Attack : sample.WavInfo.Attack;
//decay = sample.WavInfo.Decay == 0 ? split.Decay : sample.WavInfo.Decay;
//sustain = sample.WavInfo.Sustain == 0 ? split.Sustain : sample.WavInfo.Sustain;
//hold = sample.WavInfo.Hold == 0 ? split.Hold : sample.WavInfo.Hold;
//decay2 = sample.WavInfo.Decay2 == 0 ? split.Decay2 : sample.WavInfo.Decay2;
//release = sample.WavInfo.Release == 0 ? split.Release : sample.WavInfo.Release;
//attackVolume = split.AttackVolume == 0 ? sample.WavInfo.AttackVolume : split.AttackVolume;
//attack = split.Attack == 0 ? sample.WavInfo.Attack : split.Attack;
//decay = split.Decay == 0 ? sample.WavInfo.Decay : split.Decay;
//sustain = split.Sustain == 0 ? sample.WavInfo.Sustain : split.Sustain;
//hold = split.Hold == 0 ? sample.WavInfo.Hold : split.Hold;
//decay2 = split.Decay2 == 0 ? sample.WavInfo.Decay2 : split.Decay2;
//release = split.Release == 0 ? sample.WavInfo.Release : split.Release;
attackVolume = split.AttackVolume == 0 ? sample.WavInfo.AttackVolume == 0 ? (byte)0x7F : sample.WavInfo.AttackVolume : split.AttackVolume;
attack = split.Attack == 0 ? sample.WavInfo.Attack == 0 ? (byte)0x7F : sample.WavInfo.Attack : split.Attack;
decay = split.Decay == 0 ? sample.WavInfo.Decay == 0 ? (byte)0x7F : sample.WavInfo.Decay : split.Decay;
sustain = split.Sustain == 0 ? sample.WavInfo.Sustain == 0 ? (byte)0x7F : sample.WavInfo.Sustain : split.Sustain;
hold = split.Hold == 0 ? sample.WavInfo.Hold == 0 ? (byte)0x7F : sample.WavInfo.Hold : split.Hold;
decay2 = split.Decay2 == 0 ? sample.WavInfo.Decay2 == 0 ? (byte)0x7F : sample.WavInfo.Decay2 : split.Decay2;
release = split.Release == 0 ? sample.WavInfo.Release == 0 ? (byte)0x7F : sample.WavInfo.Release : split.Release;
DetermineEnvelopeStartingPoint();
pos = 0;
prevLeft = prevRight = 0;
NoteLength = noteLength;
return(true);
}
}
}
return(false);
}
public static byte[]? Decompress(bool shouldDecompress, ref string audioFormat, byte[]?input)
{
if (input == null)
{
return(null);
}
if (!shouldDecompress)
{
return(input);
}
if (audioFormat.Equals("ADPCM", StringComparison.OrdinalIgnoreCase))
{
using var archive = new FByteArchive("WhoDoesntLoveCats", input);
switch (ADPCMDecoder.GetAudioFormat(archive))
{
case EAudioFormat.WAVE_FORMAT_PCM:
audioFormat = "WAV";
return(input);
case EAudioFormat.WAVE_FORMAT_ADPCM:
return(input);
}
}
else if (audioFormat.Equals("OPUS", StringComparison.OrdinalIgnoreCase))
{
return(input);
}
else if (audioFormat.Equals("WEM", StringComparison.OrdinalIgnoreCase))
{
return(input);
}
else if (audioFormat.IndexOf("OGG", StringComparison.OrdinalIgnoreCase) > -1)
{
audioFormat = "OGG";
return(input);
}
return(null);
}
