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); } }