public void c2demo()
{
Codec2 c2 = new Codec2(Codec2.Mode.b3200);
string filePath = "../../../../audioSamples/speech_orig_16k.raw";
byte[] buf;
byte[] bits;
buf = new byte[c2.samplesPerFrame * sizeof(short)];
bits = new byte[c2.bytesPerFrame];
FileStream readfile = File.OpenRead(filePath);
FileStream writeFile = File.OpenWrite("out3200");
while (readfile.Read(buf, 0, c2.samplesPerFrame * 2) == c2.samplesPerFrame * 2)
{
c2.encodeFrame(ref bits, buf);
c2.decodeFrame(ref buf, bits);
writeFile.Write(buf, 0, c2.samplesPerFrame * 2);
}
// TODO make assert
writeFile.Close();
readfile.Close();
}
void testDecodingOverload(Codec2.Mode mode)
{
// Assemble
Codec2 c2_1 = new Codec2(mode);
Codec2 c2_2 = new Codec2(mode);
Codec2 c2_3 = new Codec2(mode);
string filePath = "../../../../audioSamples/speech_orig_16k." + mode.ToString() + ".enc";
byte[] fileContent = File.ReadAllBytes(filePath);
// test
//encode everything at once
byte[] decodeAllBytes = c2_1.decodeAll(fileContent);
byte[] decodeAllBytes2 = c2_2.decodeAll(fileContent);
Assert.Equal(decodeAllBytes, decodeAllBytes2);
//encode the first frame
byte[] decodeFrameBytes = c2_2.decodeFrame(fileContent.Take(c2_2.bytesPerFrame).ToArray());
List <byte> decodeFrameList = new List <byte>();
byte[] buf = new byte[c2_3.samplesPerFrame * sizeof(short)];
byte[] bits = new byte[c2_3.bytesPerFrame];
FileStream readfile = File.OpenRead(filePath);
// read all content of the file.
while (readfile.Read(buf, 0, c2_3.bytesPerFrame) == c2_3.bytesPerFrame)
{
c2_3.decodeFrame(ref buf, bits);
decodeFrameList.AddRange(buf);
}
// assert
// TODO all tests fail, decoding seems have a random function somewhere
// the first frame of all the bytes and the single frame should be the same.
Assert.Equal(decodeAllBytes.Take(c2_1.samplesPerFrame * 2).ToArray(), decodeFrameBytes);
Assert.Equal(decodeFrameList.Take(c2_3.samplesPerFrame * 2).ToArray(), decodeFrameBytes);
// all the encodedframes added together and the encodedAll should have the same result.
Assert.Equal(decodeAllBytes, decodeFrameList.ToArray());
}