Develop Reference

How to solve E/MediaRecorder: stop called in an invalid state: 4

I am trying to record the audio and store it. Problem is When I am recording the Audio its getting started but while stopping it I am getting the error :
E/MediaRecorder: stop called in an invalid state: 4
My code is :
public void RecordVoice(){
recordVoice.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(checkPermissionFromDevice()){
pathSave = Environment.getExternalStorageDirectory().getAbsolutePath() + " /" + UUID.randomUUID().toString() + "_audio_record.3gp";
setupMediaRecorder();
try {
mediaRecorder.prepare();
mediaRecorder.start();
} catch (IOException e) {
e.printStackTrace();
}
recordVoice.setVisibility(View.GONE);
recordVoiceStop.setVisibility(View.VISIBLE);
Toast.makeText(getApplicationContext(), "Recording..",Toast.LENGTH_SHORT).show();
} else {
requestPermissionForAudio();
}
}
});
recordVoiceStop.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(mediaRecorder != null){
mediaRecorder.stop();
mediaRecorder.release();
}
recordVoice.setVisibility(View.VISIBLE);
recordVoiceStop.setVisibility(View.GONE);
}
});
}
private void setupMediaRecorder() {
mediaRecorder = new MediaRecorder();
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mediaRecorder.setAudioEncoder(MediaRecorder.OutputFormat.AMR_NB);
mediaRecorder.setOutputFile(pathSave);
}
private void requestPermissionForAudio() {
ActivityCompat.requestPermissions(this, new String[]{ Manifest.permission.RECORD_AUDIO, Manifest.permission.WRITE_EXTERNAL_STORAGE }, REQUEST_RECORD_VOICE);
}
private boolean checkPermissionFromDevice() {
int writeExternalStorageDevice = ContextCompat.checkSelfPermission(this,Manifest.permission.WRITE_EXTERNAL_STORAGE);
int recordAudioResult = ContextCompat.checkSelfPermission(this,Manifest.permission.RECORD_AUDIO);
return writeExternalStorageDevice == PackageManager.PERMISSION_GRANTED && recordAudioResult == PackageManager.PERMISSION_GRANTED;
}
PS: I have given permission in manifect. Can anybody help me to solve this issue? Any suggestion is most welcome. Thanks in advance.

change that line
pathSave = Environment.getExternalStorageDirectory().getAbsolutePath() + " /" + UUID.randomUUID().toString() + "_audio_record.3gp";
To
pathSave = getExternalCacheDir().getAbsolutePath() + "/audiorecordtest.3gp";
and it will work

Do you know why mediaplayer runonuithread doesn't work?

I am trying to run Android's MediaPlayer using runOnUiThread. I did not caught any exception with setDataSource. But after that, nothing happens with MediaPlayer. It should give callback as surface changed and onPrepared.
It seems MediaPlayer doesn't support this way.
If it is true, are there any workarounds ?
I need this kind of logic because I need to get info with network query which is blocked. I need to run onSuccess from that.
What is your suggestion for this? Thanks very much!
onResume()
{
getInfo(xxx);
}
void getInfo(url, new DataListener() {
#Override
public void onDataSuccess(xxx) {
playVideoOnSuccess(xxx);
}
}
public void playVideoOnSuccess(xxx)
{
myBaseActivity.runOnUiThread(new Runnable() {
#Override
public void run() {
try {
mPlayerListener = new VideoPlayerListener(null, content);
// create new mediaplayer
mVideoPlayer = VideoPlayer.getInstance();
mVideoPlayer.setVideoPlayerListener(mPlayerListener);
// setDataSource
mVideoPlayer.consumeContent(content);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}

Here is a sample code that i used to play video hope this might help you in some way
public class VideoViewDemo extends Activity {
private static final String TAG = "VideoViewDemo";
private String current;
/**
* TODO: Set the path variable to a streaming video URL or a local media
* file path.
*/
private String path = "http://www.boisestatefootball.com/sites/default/files/videos/original/01%20-%20coach%20pete%20bio_4.mp4";
private VideoView mVideoView;
#Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.videoview);
mVideoView = (VideoView) findViewById(R.id.surface_view);
runOnUiThread(new Runnable() {
public void run() {
playVideo();
}
});
}
private void playVideo() {
try {
// final String path = path;
Log.v(TAG, "path: " + path);
if (path == null || path.length() == 0) {
Toast.makeText(VideoViewDemo.this, "File URL/path is empty",
Toast.LENGTH_LONG).show();
} else {
// If the path has not changed, just start the media player
if (path.equals(current) && mVideoView != null) {
mVideoView.start();
mVideoView.requestFocus();
return;
}
current = path;
mVideoView.setVideoPath(getDataSource(path));
mVideoView.start();
mVideoView.setMediaController(new MediaController(this));
mVideoView.requestFocus();
}
} catch (Exception e) {
Log.e(TAG, "error: " + e.getMessage(), e);
if (mVideoView != null) {
mVideoView.stopPlayback();
}
}
}
private String getDataSource(String path) throws IOException {
if (!URLUtil.isNetworkUrl(path)) {
return path;
} else {
URL url = new URL(path);
URLConnection cn = url.openConnection();
cn.connect();
InputStream stream = cn.getInputStream();
if (stream == null)
throw new RuntimeException("stream is null");
File temp = File.createTempFile("mediaplayertmp", "dat");
temp.deleteOnExit();
String tempPath = temp.getAbsolutePath();
FileOutputStream out = new FileOutputStream(temp);
byte buf[] = new byte[128];
do {
int numread = stream.read(buf);
if (numread <= 0)
break;
out.write(buf, 0, numread);
} while (true);
try {
stream.close();
} catch (IOException ex) {
Log.e(TAG, "error: " + ex.getMessage(), ex);
}
return tempPath;
}
}
}
This work for me

Android: using VideoView and RtpStream

I'm working with VideoView to stream a video with rtsp. I want to obtain details about it so I want to use android.net.rtp. When I call any RtpStream class's method like getLocalPort() the application doesn't work. Here is the code:
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mVideoView = (VideoView) findViewById(R.id.surface_view);
mPath = (EditText) findViewById(R.id.edit_message);
text= "rtsp://192.168.1.37/sample_300kbit.mp4";
mPath.setText(text);
mPlay = (ImageButton) findViewById(R.id.play);
mPause = (ImageButton) findViewById(R.id.pause);
mReset = (ImageButton) findViewById(R.id.reset);
mStop = (ImageButton) findViewById(R.id.stop);
mPlay.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
reproducirVideo();
}
});
mPause.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
if (mVideoView != null) {
mVideoView.pause();
}
}
});
mReset.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
if (mVideoView != null) {
mVideoView.seekTo(0);
}
}
});
mStop.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
if (mVideoView != null) {
current = null;
mVideoView.stopPlayback();
}
}
});
runOnUiThread(new Runnable(){
public void run() {
reproducirVideo();
}
});
}
public void reproducirVideo() {
try {
final String path = mPath.getText().toString();
Log.v(TAG, "path: " + path);
if (path == null || path.length() == 0) {
Toast.makeText(MainActivity.this, "Campo URL vacío",
Toast.LENGTH_LONG).show();
} else {
if (path.equals(current) && mVideoView != null) {
mVideoView.start();
mVideoView.requestFocus();
return;
}
current = path;
mVideoView.setVideoPath(getDataSource(path));
mVideoView.start();
mVideoView.requestFocus();
TextView texto= (TextView) findViewById(R.id.mensaje);
InetAddress address = null;
mRtpStream.associate(InetAddress.getByAddress(new byte[] {(byte)192, (byte)168, (byte)1, (byte)37 }), 1220);
address=mRtpStream.getRemoteAddress();
String address_string = address.getHostAddress();
texto.setText(" La dirección local es "+(address_string)+" ");
}
} catch (Exception e) {
Log.e(TAG, "error: " + e.getMessage(), e);
if (mVideoView != null) {
mVideoView.stopPlayback();
}
}
}
private String getDataSource(String path) throws IOException {
if (!URLUtil.isNetworkUrl(path)) {
return path;
} else {
URL url = new URL(path);
URLConnection cn = url.openConnection();
cn.connect();
InputStream stream = cn.getInputStream();
if (stream == null)
throw new RuntimeException("stream is null");
File temp = File.createTempFile("mediaplayertmp", "dat");
temp.deleteOnExit();
String tempPath = temp.getAbsolutePath();
FileOutputStream out = new FileOutputStream(temp);
byte buf[] = new byte[128];
do {
int numread = stream.read(buf);
if (numread <= 0)
break;
out.write(buf, 0, numread);
} while (true);
try {
stream.close();
} catch (IOException ex) {
Log.e(TAG, "error: " + ex.getMessage(), ex);
}
return tempPath;
}
}
}

How to Develop Android video streaming application with diffrent video qualities as in Youtube (Change Quality)

I would like to develop a android app with video player that renders diffrent qualities of same video just like in youtube change quality feature.
Proir to that i am curious to know whether the source should contain videos of all the qulity options provided to render them dynamically.
Any help is sincerly appreciated.
My code to dtream video from URL.
public class VideoViewDemo extends Activity {
private static final String TAG = "VideoViewDemo";
private VideoView mVideoView;
private EditText mPath;
private ImageButton mPlay;
private ImageButton mPause;
private ImageButton mReset;
private ImageButton mStop;
private String current;
#Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
mVideoView = (VideoView) findViewById(R.id.surface_view);
mPath = (EditText) findViewById(R.id.path);
mPath.setText("http://daily3gp.com/vids/747.3gp");
mPlay = (ImageButton) findViewById(R.id.play);
mPause = (ImageButton) findViewById(R.id.pause);
mReset = (ImageButton) findViewById(R.id.reset);
mStop = (ImageButton) findViewById(R.id.stop);
mPlay.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
playVideo();
}
});
mPause.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
if (mVideoView != null) {
mVideoView.pause();
}
}
});
mReset.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
if (mVideoView != null) {
mVideoView.seekTo(0);
}
}
});
mStop.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
if (mVideoView != null) {
current = null;
mVideoView.stopPlayback();
}
}
});
runOnUiThread(new Runnable(){
public void run() {
playVideo();
}
});
}
private void playVideo() {
try {
final String path = mPath.getText().toString();
Log.v(TAG, "path: " + path);
if (path == null || path.length() == 0) {
Toast.makeText(VideoViewDemo.this, "File URL/path is empty",
Toast.LENGTH_LONG).show();
} else {
// If the path has not changed, just start the media player
if (path.equals(current) && mVideoView != null) {
mVideoView.start();
mVideoView.requestFocus();
return;
}
current = path;
mVideoView.setVideoPath(getDataSource(path));
mVideoView.start();
mVideoView.requestFocus();
}
} catch (Exception e) {
Log.e(TAG, "error: " + e.getMessage(), e);
if (mVideoView != null) {
mVideoView.stopPlayback();
}
}
}
private String getDataSource(String path) throws IOException {
if (!URLUtil.isNetworkUrl(path)) {
return path;
} else {
URL url = new URL(path);
URLConnection cn = url.openConnection();
cn.connect();
InputStream stream = cn.getInputStream();
if (stream == null)
throw new RuntimeException("stream is null");
File temp = File.createTempFile("mediaplayertmp", "dat");
temp.deleteOnExit();
String tempPath = temp.getAbsolutePath();
FileOutputStream out = new FileOutputStream(temp);
byte buf[] = new byte[128];
do {
int numread = stream.read(buf);
if (numread <= 0)
break;
out.write(buf, 0, numread);
} while (true);
try {
stream.close();
} catch (IOException ex) {
Log.e(TAG, "error: " + ex.getMessage(), ex);
}
return tempPath;
}
}
}
Thanks,
Ajay

Hi got it solved by below methods on setOnClickListener event get the current postion of videow view and change the video source to HD and use SeekTo method with current position and then start HD video so that HD video cans tart from current postion of previous SD video.

How to convert Youtube URL to RTSP URL?

In my project I want to dowload a Youtube URL and play it in media player but as far I have searched I got an idea that Youtube URLs can be played only if they are converted into a RTSP file. I don't have any idea of how to do that. It would be very helpful if you send me a sample project.
public class Video_Media_PlayerActivity extends Activity {
private static final String TAG = "VideoViewDemo";
private VideoView mVideoView;
private EditText mPath;
private ImageButton mPlay;
private ImageButton mPause;
private ImageButton mReset;
private ImageButton mStop;
private String current;
String tempPath;
private VideoMediaViewApplication appObj;
private int mVideoQuality = 80;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mVideoView = (VideoView) findViewById(R.id.surface_view);
mPath = (EditText) findViewById(R.id.path);
mPath.setText("http://daily3gp.com/vids/747.3gp");
mPlay = (ImageButton) findViewById(R.id.play);
mPause = (ImageButton) findViewById(R.id.pause);
mReset = (ImageButton) findViewById(R.id.reset);
mStop = (ImageButton) findViewById(R.id.stop);
mPlay.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
playVideo();
}
});
mPause.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
if (mVideoView != null) {
mVideoView.pause();
}
}
});
mReset.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
if (mVideoView != null) {
mVideoView.seekTo(0);
}
}
});
mStop.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
if (mVideoView != null) {
current = null;
mVideoView.stopPlayback();
}
}
});
runOnUiThread(new Runnable(){
public void run() {
playVideo();
}
});
}
private void playVideo() {
try {
final String path = mPath.getText().toString();
Log.v(TAG, "path: " + path);
if (path == null || path.length() == 0) {
Toast.makeText(Video_Media_PlayerActivity.this, "File URL/path is empty",
Toast.LENGTH_LONG).show();
} else {
// If the path has not changed, just start the media player
if (path.equals(current) && mVideoView != null) {
mVideoView.start();
mVideoView.requestFocus();
return;
}
current = path;
mVideoView.setVideoPath(getDataSource(path));
mVideoView.start();
mVideoView.requestFocus();
}
} catch (Exception e) {
Log.e(TAG, "error: " + e.getMessage(), e);
if (mVideoView != null) {
mVideoView.stopPlayback();
}
}
}
private String getDataSource(String path) throws IOException {
if (!URLUtil.isNetworkUrl(path)) {
return path;
} else {
URL url = new URL(path);
URLConnection cn = url.openConnection();
cn.connect();
InputStream stream = cn.getInputStream();
if (stream == null)
throw new RuntimeException("stream is null");
//prepareDirectory();
//File file1 = new File(path);
File file1 = File.createTempFile("mediaplayertmp", "dat");
file1.deleteOnExit();
tempPath = file1.getAbsolutePath();
FileOutputStream out = new FileOutputStream(file1);
byte buf[] = new byte[128];
do {
int numread = stream.read(buf);
if (numread <= 0)
break;
out.write(buf, 0, numread);
} while (true);
try {
stream.close();
} catch (IOException ex) {
Log.e(TAG, "error: " + ex.getMessage(), ex);
}
return tempPath;
}
}
}

Use http://gdata.youtube.com/feeds/mobile/videos/T9W4jgq9RfQ api
public class MainActivity extends Activity {
String video_id;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
try {
String link = "http://www.youtube.com/watch?v=T9W4jgq9RfQ&feature=related";
String pattern = "(?:videos\\/|v=)([\\w-]+)";
Pattern compiledPattern = Pattern.compile(pattern);
Matcher matcher = compiledPattern.matcher(link);
if(matcher.find()){
System.out.println(matcher.group().substring(2));
video_id=matcher.group().substring(2);
}
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc1=db.parse("http://gdata.youtube.com/feeds/mobile/videos/"+video_id);
Element rsp = (Element)doc1.getElementsByTagName("media:content").item(1);
String anotherurl=rsp.getAttribute("url");
System.out.println("my "+anotherurl);
// Element rsp = (Element)doc1.getElementsByTagName("media:content").item(1);
} catch (Exception e) {
System.out.println("Pasing Excpetion = " + e);
}
}