Android-ICS 4.0中的MediaPlayer缓冲区大小

Question

final Socket client = (setup above)

// encrypted file input stream
final CipherInputStream inputStream = getInputStream(file);

// setup the socket output stream
final OutputStream output =  client.getOutputStream();

// Writing the header
final String httpHeader = buildHttpHeader(file.length());
final byte[] buffer = httpHeader.getBytes("UTF-8");
output.write(buffer, 0, buffer.length);

int writtenBytes = 0;
int readBytes;
final byte[] buff = new byte[1024 * 12]; // 12 KB

while (mIsRunning && (readBytes = inputStream.read(buff)) != -1) {
    output.write(buff, 0, readBytes);
    writtenBytes += readBytes;
}

output.flush();
output.close();

private String buildHttpHeader(final int contentLength) {
    final StringBuilder sb = new StringBuilder();

    sb.append("HTTP/1.1 200 OK\r\n");
    sb.append("Content-Length: ").append(contentLength).append("\r\n");
    sb.append("Accept-Ranges: bytes\r\n" );
    sb.append("Content-Type: audio/mpeg\r\n");
    sb.append("Connection: close\r\n" );
    sb.append("\r\n");

    return sb.toString();
}

mCurrentPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mCurrentPlayer.setDataSource(url);
mCurrentPlayer.prepareAsync();

虽然我认为这个API更改请求在我来之前就已经存在了，所以我不会建议任何人屏住呼吸。

Answer 1

是否可以看到您开始（）MediaPlayer的代码？

您使用的是stream_music音频流类型吗？

player.setAudioStreamType(AudioManager.STREAM_MUSIC);

您是否也在Player.PrepareAsync（）；和player.prepare（）；？

player.setAudioStreamType(AudioManager.STREAM_MUSIC); 
player.setDataSource(src); 
player.prepare(); 
player.start(); 
player.pause(); 
player.setOnPreparedListener(new OnPreparedListener() {     
@Override
                public void onPrepared(MediaPlayer mp) {
                    player.start();                
                }
          });