private WaveFileForwardOnlyReader(Stream inputStream, bool ownInput, bool storeAllChunks)
{
this.waveStream = inputStream;
var chunkReader = new WaveFileChunkForwardOnlyReader(storeAllChunks);
try
{
chunkReader.ReadWaveHeader(inputStream);
this.waveFormat = chunkReader.WaveFormat;
this.dataChunkLength = chunkReader.DataChunkLength;
this.Chunks = chunkReader.RiffChunks;
}
catch
{
if (ownInput)
{
inputStream.Dispose();
}
throw;
}
this.ownInput = ownInput;
}
public void TestEmptyFile()
{
// arrange
var fileContents = new byte[]
{
0x52, 0x49, 0x46, 0x46, // "RIFF"
0x26, 0x00, 0x00, 0x00, // ChunkSize = 38
0x57, 0x41, 0x56, 0x45, // "WAVE"
0x66, 0x6d, 0x74, 0x20, // "fmt "
0x12, 0x00, 0x00, 0x00, // Subchunk1Size = 18
0x07, 0x00, 0x02, 0x00, // AudioFormat = 7, NumChannels = 2
0x40, 0x1f, 0x00, 0x00, // SampleRate = 8000
0x80, 0x3e, 0x00, 0x00, // ByteRate = 16000
0x02, 0x00, 0x08, 0x00, // BlockAlign = 2, BitsPerSample = 8
0x00, 0x00, // ExtraParamSize = 0
0x64, 0x61, 0x74, 0x61, // "data"
0x00, 0x00, 0x00, 0x00, // Subchunk2Size = 0
};
using (var inputStream = new MemoryStream(fileContents))
{
// act
var chunks = new List<RiffChunkData>();
var chunkReader = new WaveFileChunkForwardOnlyReader(true);
chunkReader.ReadWaveHeader(inputStream);
// assert
Assert.AreEqual(16000, chunkReader.WaveFormat.AverageBytesPerSecond);
Assert.AreEqual(8, chunkReader.WaveFormat.BitsPerSample);
Assert.AreEqual(2, chunkReader.WaveFormat.Channels);
Assert.AreEqual(8000, chunkReader.WaveFormat.SampleRate);
Assert.AreEqual(46, inputStream.Position);
Assert.AreEqual(0, chunkReader.DataChunkLength);
Assert.AreEqual(0, chunks.Count);
}
}
