[英]Android live streaming Video - Audio not working
Make an android app to stream live video/audio to a PC. 制作一个Android应用程序,将实时视频/音频流式传输到PC。 The files should not be saved anywhere.
文件不应保存在任何地方。 Atm im working in java on both ends (android / PC) due to the finds of the libraries libstreamer and vlcj.
由于库libstreamer和vlcj的发现,Atm我在java两端(android / PC)工作。
I got the video to work but it doesn't play the audio on the PC. 我让视频工作但它没有在PC上播放音频。 I tried different encoding for the audio.
我尝试了不同的音频编码。 When trying with AAC - VLC will give an error saying this is an unknown format.
尝试使用AAC时 - VLC会发出错误消息,说这是一种未知格式。 Aint getting same error using the format AMRNB, so some audio must be coming through or am i wrong about this?
Aint使用格式AMRNB得到相同的错误,所以有些音频必须通过或者我错了吗? I have tried several different RTPS testlinks from G33Ktricks Did not manage to find one not working with the PC vlcj.
我尝试过G33Ktricks的几个不同的RTPS测试链接 。没有设法找到一个不使用PC vlcj的测试链接。 A logcat for the startup after PC connects to android pastebin
PC连接到android pastebin后启动的logcat
What am i missing for the audio to work? 我错过了什么音频工作? If that cannot be answered, is it the android or PC side i should look at to have the most luck finding the missing line?
如果无法回答,那么我应该看看Android或PC方面是否有运气找到缺失线?
im using libstreamer and examples from Spydroid to get this working. 即时通讯使用libstreamer和Spydroid中的示例来实现这一点。 The code i startet with is found in the libstreamer pack example 1:
我发现的代码可以在libstreamer包示例1中找到:
public class MainActivity extends Activity {
private final static String TAG = "MainActivity";
private SurfaceView mSurfaceView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
mSurfaceView = (SurfaceView) findViewById(R.id.surface);
// Sets the port of the RTSP server to 1234
Editor editor = PreferenceManager.getDefaultSharedPreferences(this).edit();
editor.putString(RtspServer.KEY_PORT, String.valueOf(1234));
editor.commit();
// Configures the SessionBuilder
SessionBuilder builder = SessionBuilder.getInstance();
builder.setSurfaceView(mSurfaceView);
builder.setPreviewOrientation(90);
builder.setContext(getApplicationContext());
builder.setAudioEncoder(SessionBuilder.AUDIO_AMRNB);
builder.setAudioQuality(new AudioQuality(8000,16000));
builder.setVideoEncoder(SessionBuilder.VIDEO_H264);
builder.setVideoQuality(new VideoQuality(480,320,10,500000));
builder.setCamera(CameraInfo.CAMERA_FACING_FRONT);
builder.build();
// Starts the RTSP server
this.startService(new Intent(this,RtspServer.class));
}
}
Using VLCJ for the streaming. 使用VLCJ进行流式传输。 The code i startet with is found in the vlcj-master official pack - Example2:
我发现的代码可以在vlcj-master官方包中找到 - 例2:
public class Example2
{
private final JFrame frame;
private final EmbeddedMediaPlayerComponent mediaPlayerComponent;
public static void main( String[ ] args )
{
new NativeDiscovery().discover();
final String mrl = "rtsp://10.251.1.107:1234/trackID=0";
SwingUtilities.invokeLater( new Runnable() {
@Override
public void run( )
{
new Example2().start( mrl );
}
} );
}
public Example2( )
{
mediaPlayerComponent = new EmbeddedMediaPlayerComponent();
frame = new JFrame( "vlcj quickstart" );
frame.setLocation( 0, 0 );
frame.setSize( 1400, 800 );
frame.setContentPane( mediaPlayerComponent );
frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
frame.setVisible( true );
}
private void start( String mrl )
{
String[] options = {"--ffmpeg-threads=1"};
EmbeddedMediaPlayer p = mediaPlayerComponent.getMediaPlayer();
p.playMedia( mrl, options );
}
}
From the android side: 从android方面:
RTSP/1.0 200 OK
Server: MajorKernelPanic RTSP Server
Cseq: 3
Content-Length: 366
Content-Base: 10.251.1.107:1234/
Content-Type: application/sdp
v=0
o=- 0 0 IN IP4 10.251.1.107
s=Unnamed
i=N/A
c=IN IP4 10.251.1.125
t=0 0
a=recvonly
m=audio 5004 RTP/AVP 96
a=rtpmap:96 AMR/8000
a=fmtp:96 octet-align=1;
a=control:trackID=0
m=video 5006 RTP/AVP 96
a=rtpmap:96 H264/90000
a=fmtp:96 packetization-mode=1;profile-level-id=428015;sprop-parameter-sets=Z0KAFdoHgpoBtChNQA==,aM4G4g==;
a=control:trackID=1
SETUP 10.251.1.107:1234/trackID=0
Requested audio with 16kbps at 8kHz
I found the reason why... 我找到了原因......
The following code is from libstreaming net.majorkernelpanic.streaming.SessionBuilder.java 以下代码来自libstreaming net.majorkernelpanic.streaming.SessionBuilder.java
if (session.getVideoTrack()!=null) {
VideoStream video = session.getVideoTrack();
video.setFlashState(mFlash);
video.setVideoQuality(mVideoQuality);
video.setSurfaceView(mSurfaceView);
video.setPreviewOrientation(mOrientation);
video.setDestinationPorts(5006);
}
if (session.getAudioTrack()!=null) {
AudioStream audio = session.getAudioTrack();
audio.setAudioQuality(mAudioQuality);
audio.setDestinationPorts(5004); //Change this port to anything else fx 5010 worked for me
}
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