从 c# 将音频流式传输到网页

Question

[WebMethod]
public void PlayAudio(int id)
{


    using (The_FactoryDBContext db = new The_FactoryDBContext())
    {
        if (db.Words.FirstOrDefault(word => word.wordID == id).engAudio != null)
        {
            byte[] bytes = db.Words.FirstOrDefault(word => word.wordID == id).engAudio;

            MemoryStream ms = new MemoryStream(bytes);
            System.Media.SoundPlayer myPlayer = new System.Media.SoundPlayer(ms);
            myPlayer.Play();
        }
    }



}

显然，在上面的代码中，实际播放音频的是通过 System.Media.SoundPlayer 对象的 C# 代码，而不是浏览器，这就是它无法在服务器上播放的原因。

谁能告诉我如何从 c# 将音频流式传输到网页，以便我可以使用 HTML5 音频标签将其连接到按钮

Answer 1

只需将流发送到客户端，浏览器将决定如何播放（您必须提供音频的 MIME 类型）：

public ActionResult PlayAudio(int id)
{
    MemoryStream ms = null;
    using (The_FactoryDBContext db = new The_FactoryDBContext())
    {
        if (db.Words.FirstOrDefault(word => word.wordID == id).engAudio != null)
        {
            byte[] bytes = db.Words.FirstOrDefault(word => word.wordID == id).engAudio;

            ms = new MemoryStream(bytes);
        }
    }
    return File(ms,"audio/mpeg");//if it's mp3
}

对于网络服务，试试这个：

[WebMethod]
public void PlayAudio(int id)
{
    byte[] bytes = new byte[0];
    using (The_FactoryDBContext db = new The_FactoryDBContext())
    {
        if (db.Words.FirstOrDefault(word => word.wordID == id).engAudio != null)
        {
            bytes = db.Words.FirstOrDefault(word => word.wordID == id).engAudio;

        }
    }
    Context.Response.Clear();
    Context.Response.ClearHeaders();
    Context.Response.ContentType = "audio/mpeg";
    Context.Response.AddHeader("Content-Length", bytes.Length.ToString());
    Context.Response.OutputStream.Write(bytes, 0, bytes.Length);
    Context.Response.End();
}