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Médias (1)
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La conservation du net art au musée. Les stratégies à l’œuvre
26 mai 2011
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (93)
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L’utiliser, en parler, le critiquer
10 avril 2011La première attitude à adopter est d’en parler, soit directement avec les personnes impliquées dans son développement, soit autour de vous pour convaincre de nouvelles personnes à l’utiliser.
Plus la communauté sera nombreuse et plus les évolutions seront rapides ...
Une liste de discussion est disponible pour tout échange entre utilisateurs. -
Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
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Use, discuss, criticize
13 avril 2011, parTalk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
A discussion list is available for all exchanges between users.
Sur d’autres sites (10828)
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nobody can't exec ffmpeg command
9 octobre 2013, par joanerI'm try to get the tag info from media file use ffmpeg. It work fine on system user xiaoai.
// it should output the info, but nothing
exec("/usr/bin/ffmpeg -i /home/xiaoai/music/Roar.mp3", $say, $code);
var_dump($code); // code is 1, I know it's a error: Catchall for general errors.So I think about permission, my script run as nobody. I give the mp3 file 777 permission, /usr/bin/ffmpeg 777, and user change to nobody. but still not work.
I must use this ffmpeg, this is only way for aac as i know, mp3, m4a, ogg. Please tell me how to do or other way.
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Android FFmpegPlayer Streaming Service onClick notification
8 octobre 2013, par agonyI have a MainActivity class that displays the list of streams available for my project and the StreamingActivity class where the streaming is done.
If the user selected an item from the list it will start the StreamingActivity and start playing the stream.
I'm having trouble to continue streaming music when the user pressed the notification and returning it to the StreamingActivity class if the user pressed or clicked the home menu or when the app goes to onDestroy().I'm using FFmpegPlayer for my project 'coz it requires to play mms :// live streams for local FM station.
Here's my code :
public class StreamingActivity extends BaseActivity implements ActionBar.TabListener,
PlayerControlListener, IMediaPlayerServiceClient {
private StatefulMediaPlayer mMediaPlayer;
private FFmpegService mService;
private boolean mBound;
public static final String TAG = "StationActivity";
private static Bundle mSavedInstanceState;
private static PlayerFragment mPlayerFragment;
private static DJListFragment mDjListFragment;
private SectionsPagerAdapter mSectionsPagerAdapter;
private ViewPager mViewPager;
private String stream = "";
private String fhz = "";
private String page = "0";
private Dialog shareDialog;
private ProgressDialog dialog;
private boolean isStreaming;
/*************************************************************************************************************/
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_station);
Bundle bundle = getIntent().getExtras();
if(bundle !=null){
fhz = bundle.getString("fhz");
stream = bundle.getString("stream");
}
Log.d(TAG, "page: " + page + " fhz: " + fhz + " stream: " + stream + " isStreaming: " + isStreaming);
getSupportActionBar().setTitle("Radio \n" + fhz);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
mPlayerFragment = (PlayerFragment) Fragment.instantiate(this, PlayerFragment.class.getName(), null);
mDjListFragment = (DJListFragment) Fragment.instantiate(this, DJListFragment.class.getName(), null);
mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mSectionsPagerAdapter);
mViewPager.setCurrentItem(Integer.parseInt(page));
mSavedInstanceState = savedInstanceState;
Tab playingTab = getSupportActionBar().newTab();
playingTab.setText(getString(R.string.playing_label));
playingTab.setTabListener(this);
Tab djTab = getSupportActionBar().newTab();
djTab.setText(getString(R.string.dj_label));
djTab.setTabListener(this);
getSupportActionBar().addTab(playingTab);
getSupportActionBar().addTab(djTab);
// When swiping between different sections, select the corresponding
// tab. We can also use ActionBar.Tab#select() to do this if we have
// a reference to the Tab.
mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
@Override
public void onPageSelected(int position) {
StationActivity.this.getSupportActionBar().setSelectedNavigationItem(position);
}
});
if (mSavedInstanceState != null) {
getSupportActionBar().setSelectedNavigationItem(mSavedInstanceState.getInt("tab", 0));
}
dialog = new ProgressDialog(this);
bindToService();
UriBean.getInstance().setStream(stream);
Log.d(TAG ,"stream: " + UriBean.getInstance().getStream());
}
/********************************************************************************************************/
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
if (position == 0) {
return mPlayerFragment;
} else {
return mDjListFragment;
}
}
@Override
public int getCount() {
return 2;
}
}
@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// When the given tab is selected, switch to the corresponding page in the ViewPager.
mViewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) { }
@Override
public void onTabReselected(Tab tab, FragmentTransaction ft) { }
/********************************************************************************************************/
public void showLoadingDialog() {
dialog.setMessage("Buffering...");
dialog.show();
}
public void dismissLoadingDialog() {
dialog.dismiss();
}
/********************************************************************************************************/
/**
* Binds to the instance of MediaPlayerService. If no instance of MediaPlayerService exists, it first starts
* a new instance of the service.
*/
public void bindToService() {
Intent intent = new Intent(this, FFmpegService.class);
if (Util.isFFmpegServiceRunning(getApplicationContext())){
// Bind to Service
Log.i(TAG, "bindService");
bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
} else {
//start service and bind to it
Log.i(TAG, "startService & bindService");
startService(intent);
bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
}
}
/**
* Defines callbacks for service binding, passed to bindService()
*/
private ServiceConnection mConnection = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName className, IBinder serviceBinder) {
Log.d(TAG,"service connected");
//bound with Service. get Service instance
MediaPlayerBinder binder = (FFmpegService.MediaPlayerBinder) serviceBinder;
mService = binder.getService();
//send this instance to the service, so it can make callbacks on this instance as a client
mService.setClient(StationActivity.this);
mBound = true;
Log.d(TAG, "isPlaying === SERVICE: " + mService.isPlaying());
//if
startStreaming();
}
@Override
public void onServiceDisconnected(ComponentName arg0) {
mBound = false;
mService = null;
}
};
/********************************************************************************************************/
@Override
public void onPlayerPlayStop() {
Log.d(TAG, "onPlayerPlayStop");
Log.v(TAG, "isStreaming: " + isStreaming);
Log.v(TAG, "mBound: " + mBound);
if (mBound) {
Log.d(TAG, "bound.............");
mMediaPlayer = mService.getMediaPlayer();
//pressed pause ->pause
if (!PlayerFragment.play.isChecked()) {
if (mMediaPlayer.isStarted()) {
Log.d(TAG, "pause");
mService.pauseMediaPlayer();
}
} else { //pressed play
// STOPPED, CREATED, EMPTY, -> initialize
if (mMediaPlayer.isStopped() || mMediaPlayer.isCreated() || mMediaPlayer.isEmpty()) {
startStreaming();
} else if (mMediaPlayer.isPrepared() || mMediaPlayer.isPaused()) { //prepared, paused -> resume play
Log.d(TAG, "start");
mService.startMediaPlayer();
}
}
Log.d(TAG, "isPlaying === SERVICE: " + mService.isPlaying());
}
}
/********************************************************************************************************/
@Override
public void onDownload() {
Toast.makeText(this, "Not yet available...", Toast.LENGTH_SHORT).show();
}
@Override
public void onComment() {
FragmentManager fm = getSupportFragmentManager();
DialogFragment newFragment = MyAlertDialogFragment.newInstance();
newFragment.show(fm, "comment_dialog");
}
@Override
public void onShare() {
showShareDialog();
}
/********************************************************************************************************/
private void startStreaming() {
Log.d(TAG, "@startLoading");
boolean isNetworkFound = Util.checkConnectivity(getApplicationContext());
if(isNetworkFound) {
Log.d(TAG, "network found");
mService.initializePlayer(stream);
isStreaming = true;
} else {
Toast.makeText(getApplicationContext(), "No internet connection found...", Toast.LENGTH_SHORT).show();
}
Log.d(TAG, "isStreaming: " + isStreaming);
Log.d(TAG, "isPlaying === SERVICE: " + mService.isPlaying());
}
@Override
public void onInitializePlayerStart() {
showLoadingDialog();
}
@Override
public void onInitializePlayerSuccess() {
dismissLoadingDialog();
PlayerFragment.play.setChecked(true);
Log.d(TAG, "isPlaying === SERVICE: " + mService.isPlaying());
}
@Override
public void onError() {
Toast.makeText(getApplicationContext(), "Not connected to the server...", Toast.LENGTH_SHORT).show();
}
@Override
public void onDestroy() {
Log.d(TAG, "onDestroy");
super.onDestroy();
uiHelper.onDestroy();
Log.d(TAG, "isPlaying === SERVICE: " + mService.isPlaying());
if (mBound) {
mService.unRegister();
unbindService(mConnection);
mBound = false;
}
Log.d(TAG, "service: " + Util.isFFmpegServiceRunning(getApplicationContext()));
}
@Override
public void onStop(){
Log.d(TAG, "onStop");
super.onStop();
}
/*******************************************************************************************************/
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int itemId = item.getItemId();
switch (itemId){
case android.R.id.home:
onBackPressed();
break;
default:
break;
}
return true;
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
Log.d(TAG, "@onKeyDown");
if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0){
//this.moveTaskToBack(true);
onBackPressed();
return true;
}
return super.onKeyDown(keyCode, event);
}
}
public class FFmpegService extends Service implements IMediaPlayerThreadClient {
private FFmpegPlayerThread mMediaPlayerThread = new FFmpegPlayerThread(this);
private final Binder mBinder = new MediaPlayerBinder();
private IMediaPlayerServiceClient mClient;
//private StreamStation mCurrentStation;
private boolean mIsSupposedToBePlaying = false;
private boolean isPausedInCall = false;
private PhoneStateListener phoneStateListener;
private TelephonyManager telephonyManager;
@Override
public void onCreate(){
mMediaPlayerThread.start();
}
/**
* A class for clients binding to this service. The client will be passed an object of this class
* via its onServiceConnected(ComponentName, IBinder) callback.
*/
public class MediaPlayerBinder extends Binder {
/**
* Returns the instance of this service for a client to make method calls on it.
* @return the instance of this service.
*/
public FFmpegService getService() {
return FFmpegService.this;
}
}
/**
* Returns the contained StatefulMediaPlayer
* @return
*/
public StatefulMediaPlayer getMediaPlayer() {
return mMediaPlayerThread.getMediaPlayer();
}
public boolean isPlaying() {
return mIsSupposedToBePlaying;
}
@Override
public IBinder onBind(Intent arg0) {
return mBinder;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
phoneStateListener = new PhoneStateListener() {
@Override
public void onCallStateChanged(int state, String incomingNumber) {
// String stateString = "N/A";
Log.v("FFmpegService", "Starting CallStateChange");
switch (state) {
case TelephonyManager.CALL_STATE_OFFHOOK:
case TelephonyManager.CALL_STATE_RINGING:
if (mMediaPlayerThread != null) {
pauseMediaPlayer();
isPausedInCall = true;
}
break;
case TelephonyManager.CALL_STATE_IDLE:
// Phone idle. Start playing.
if (mMediaPlayerThread != null) {
if (isPausedInCall) {
isPausedInCall = false;
startMediaPlayer();
}
}
break;
}
}
};
// Register the listener with the telephony manager
telephonyManager.listen(phoneStateListener, PhoneStateListener.LISTEN_CALL_STATE);
return START_STICKY;
}
/**
* Sets the client using this service.
* @param client The client of this service, which implements the IMediaPlayerServiceClient interface
*/
public void setClient(IMediaPlayerServiceClient client) {
this.mClient = client;
}
public void initializePlayer(final String station) {
//mCurrentStation = station;
mMediaPlayerThread.initializePlayer(station);
}
public void startMediaPlayer() {
Intent notificationIntent = new Intent(getApplicationContext(), StreamingActivity.class);
//notificationIntent.putExtra("page", "0");
//notificationIntent.putExtra("isPlaying", isPlaying());
notificationIntent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent contentIntent = PendingIntent.getActivity(getApplicationContext(), 0 , notificationIntent , PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("You are listening to Radio...")
.setContentText("test!!!")
.setContentIntent(contentIntent);
startForeground(1, mBuilder.build());
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(1, mBuilder.build());
mIsSupposedToBePlaying = true;
mMediaPlayerThread.startMediaPlayer();
}
public void dismissNotification(Context context) {
String ns = Context.NOTIFICATION_SERVICE;
NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns);
mNotificationManager.cancel(1);
}
/**
* Pauses playback
*/
public void pauseMediaPlayer() {
Log.d("MediaPlayerService","pauseMediaPlayer() called");
mMediaPlayerThread.pauseMediaPlayer();
stopForeground(true);
mIsSupposedToBePlaying = false;
dismissNotification(this);
}
/**
* Stops playback
*/
public void stopMediaPlayer() {
stopForeground(true);
mMediaPlayerThread.stopMediaPlayer();
mIsSupposedToBePlaying = false;
dismissNotification(this);
}
public void resetMediaPlayer() {
mIsSupposedToBePlaying = false;
stopForeground(true);
mMediaPlayerThread.resetMediaPlayer();
dismissNotification(this);
}
@Override
public void onError() {
mIsSupposedToBePlaying = false;
mClient.onError();
dismissNotification(this);
}
@Override
public void onInitializePlayerStart() {
mClient.onInitializePlayerStart();
}
@Override
public void onInitializePlayerSuccess() {
startMediaPlayer();
mClient.onInitializePlayerSuccess();
mIsSupposedToBePlaying = true;
}
public void unRegister() {
this.mClient = null;
mIsSupposedToBePlaying = false;
dismissNotification(this);
}
}Hoping someone can help me here...
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Starting Multiple FFmpeg Sessions
10 septembre 2013, par petreI want to start multiple FFmpeg sessions in a for loop. Here is my script :
# start recording for all cams
for i in `seq 1 ${CAM_NO}`
do
/home/aydu/bin/ffmpeg -f video4linux2 -i /dev/video${i} -y -c:v libx264 -r 5 -s 320x240 -vf format=gray $DIR/CAM${i}_${DTIME}.avi -r 1/5 -vf format=gray -f image2 -updatefirst 1 $DIR/webcam${i}.jpeg
doneProblem is sessions don't start sequentially. For example second process starts if and only if the first process stops, closes, finishes or terminates.
How can i start multiple sessions ?
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