static bool CheckWav(string fileName)
{
WavHeader wh = null;
try
{
using (var br = new BinaryReader(File.Open(fileName, FileMode.Open)))
wh = WavHeader.WavHeaderFromBinaryReader(br);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
return(wh.ChunkId == "RIFF" && wh.Format == "WAVE" && wh.Subchunk11D == "fmt " && wh.Subchunk2ID == "data");
}
////////////////////////////////////////////////////////
// BONUS
////////////////////////////////////////////////////////
static void ReadHeader(string fileName)
{
if (!CheckWav(fileName))
{
Console.WriteLine("Ce fichier n'est pas un fichier .wav");
return;
}
WavHeader wh;
using (var br = new BinaryReader(File.Open(fileName, FileMode.Open)))
wh = WavHeader.WavHeaderFromBinaryReader(br);
foreach (var f in Assembly.GetExecutingAssembly().GetType(typeof(WavHeader).ToString()).GetFields())
{
Console.WriteLine(f.Name + " : " + f.GetValue(wh));
}
}
static void PrintInfos(string fileName)
{
if (!CheckWav(fileName))
{
Console.WriteLine("Ce fichier n'est pas un fichier .wav");
return;
}
WavHeader wh;
using (var br = new BinaryReader(File.Open(fileName, FileMode.Open)))
wh = WavHeader.WavHeaderFromBinaryReader(br);
Console.WriteLine("Nom : " + fileName);
Console.WriteLine("Taille : " + wh.ChunkSize);
Console.WriteLine("Compression : " + (wh.AudioFormat == 1 ? "Compressé" : "Non compressé"));
Console.WriteLine("Canaux : " + wh.NumChannels);
Console.WriteLine("Fréquence d'échantillonnage : " + wh.SampleRate);
}
public static WavHeader WavHeaderFromBinaryReader(BinaryReader br)
{
var waveHeader = new WavHeader
{
ChunkId = new string(br.ReadChars(4)),
ChunkSize = br.ReadInt32(),
Format = new string(br.ReadChars(4)),
Subchunk11D = new string(br.ReadChars(4)),
Subchunk1Size = br.ReadInt32(),
AudioFormat = br.ReadInt16(),
NumChannels = br.ReadInt16(),
ByteRate = br.ReadInt32(),
SampleRate = br.ReadInt32(),
BlockAlign = br.ReadInt16(),
BitsPerSample = br.ReadInt16(),
Subchunk2ID = new string(br.ReadChars(4)),
Subchunk2Size = br.ReadInt32()
};
return(waveHeader);
}
public static WavHeader WavHeaderFromBinaryReader(BinaryReader br)
{
var waveHeader = new WavHeader
{
ChunkId = new string(br.ReadChars(4)),
ChunkSize = br.ReadInt32(),
Format = new string(br.ReadChars(4)),
Subchunk11D = new string(br.ReadChars(4)),
Subchunk1Size = br.ReadInt32(),
AudioFormat = br.ReadInt16(),
NumChannels = br.ReadInt16(),
ByteRate = br.ReadInt32(),
SampleRate = br.ReadInt32(),
BlockAlign = br.ReadInt16(),
BitsPerSample = br.ReadInt16(),
Subchunk2ID = new string(br.ReadChars(4)),
Subchunk2Size = br.ReadInt32()
};
return waveHeader;
}
