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我發現了很多關於如何加入mp3或wav文件的文章,但是我沒有發現關於如何加入不同類型的音頻文件的任何內容。我想要播放wav文件,然後播放一個接一個的mp3文件。 我試圖通過使用將wav文件轉換爲mp3。如何使用naudio連接mp3和wav文件到字節緩衝區c#MVC?
private static MemoryStream ConvertWavToMp3(string path)
{
if (File.Exists(path))
{
MemoryStream stream = new MemoryStream();
using (WaveFileReader rdr = new WaveFileReader(path))
using (LameMP3FileWriter wtr = new LameMP3FileWriter(stream, rdr.WaveFormat, 320))
{
rdr.CopyTo(wtr);
return stream;
}
}
else
{
return null;
}
}
}
我通過以下代碼從mp3文件中獲取字節。
private static MemoryStream GetBytesFromMp3(string path)
{
string storageName = path.Substring(path.IndexOf("\\\\") + 2, path.IndexOf("\\", 3) - path.IndexOf("\\\\") - 2);
string networkShare = path.Substring(0, path.LastIndexOf("\\"));
NetworkCredential credentials = new NetworkCredential(ConfigurationManager.AppSettings[storageName + "_User"], ConfigurationManager.AppSettings[storageName + "_Pass"]);
using (new NetworkConnection(networkShare, credentials))
{
if (File.Exists(path))
{
using (Mp3FileReader rdr = new Mp3FileReader(path,FileMode.OpenOrCreate))
{
byte[] result = new byte[rdr.Length];
rdr.Read(result, 0, result.Length);
int a = result.Max();
MemoryStream stream = new MemoryStream(result);
return stream;
}
}
else
{
return null;
}
}
}
,並再由
public static byte[] JoinFiles(List<FileWeb> files)
{
MemoryStream output = new MemoryStream();
int offset = 0;
foreach (FileWeb file in files)
{
MemoryStream mp3Data;
string fullPath = file.FilePath + "\\" + file.FileName;
if (file.FileName.EndsWith("wav"))
{
mp3Data = ConvertWavToMp3(fullPath);
}
else
{
mp3Data = GetBytesFromMp3(fullPath);
}
if (mp3Data != null)
{
byte[] buffer = mp3Data.ToArray();
output.Write(buffer, offset, buffer.Length - offset);
offset = 4;
}
}
return output.ToArray();
}
合併它們 但事與願違work.It只播放第一part.If我用這個代碼。
public static void Combine(string[] inputFiles, Stream output)
{
foreach (string file in inputFiles)
{
Mp3FileReader reader = new Mp3FileReader(stream);
if ((output.Position == 0) && (reader.Id3v2Tag != null))
{
output.Write(reader.Id3v2Tag.RawData, 0, reader.Id3v2Tag.RawData.Length);
}
Mp3Frame frame;
while ((frame = reader.ReadNextFrame()) != null)
{
output.Write(frame.RawData, 0, frame.RawData.Length);
}
}
}
在Mp3FileReader reader = new Mp3FileReader(stream)
我得到錯誤沒有找到mp3頭。