Develop Reference

WebRTC - Echo issue in Multiple calls on android devices

I am working on an Android app that allows live chat and call functionality. I am new to WebRTC in android. I am trying to add multiple call functionality using WebRTC. I got success in connecting multiple P2P calls (Upto 6 users are easily gets connected using Mesh Topology.
Here are the steps that I am following:
A => B Call successful ==> Result: audio clear no problem on both the ends
A => C Adding New Caller C from A ==> Result: audio clear no problem on both the ends.
C => B in background C gives call to B and gets accepted on B's end => Result: audio clear no problem on all the ends.
Now, All 3 participants are connected and can communicate easily.
The issue is:
When any of the participants leaves the call, Any of the remaining participants are hearing Echo of their own voice.
All my call related setups are done using RingRTC. Please help if anyone has faced this issue.
I tried setting up Noisce Supressors, AcousticEchoCanceler and other options for each remaining audio sessions as below. But its not helping.
public void enable(int audioSession) {
Logging.d(TAG, "enable(audioSession=" + audioSession + ")");
assertTrue(aec == null);
assertTrue(agc == null);
assertTrue(ns == null);
// Add logging of supported effects but filter out "VoIP effects", i.e.,
// AEC, AEC and NS.
for (Descriptor d : AudioEffect.queryEffects()) {
if (effectTypeIsVoIP(d.type) || DEBUG) {
Logging.d(TAG, "name: " + d.name + ", "
+ "mode: " + d.connectMode + ", "
+ "implementor: " + d.implementor + ", "
+ "UUID: " + d.uuid);
}
}
if (isAcousticEchoCancelerSupported()) {
// Create an AcousticEchoCanceler and attach it to the AudioRecord on
// the specified audio session.
aec = AcousticEchoCanceler.create(audioSession);
if (aec != null) {
boolean enabled = aec.getEnabled();
boolean enable = shouldEnableAec && canUseAcousticEchoCanceler();
if (aec.setEnabled(enable) != AudioEffect.SUCCESS) {
Logging.e(TAG, "Failed to set the AcousticEchoCanceler state");
}
Logging.d(TAG, "AcousticEchoCanceler: was "
+ (enabled ? "enabled" : "disabled")
+ ", enable: " + enable + ", is now: "
+ (aec.getEnabled() ? "enabled" : "disabled"));
} else {
Logging.e(TAG, "Failed to create the AcousticEchoCanceler instance");
}
}
if (isAutomaticGainControlSupported()) {
// Create an AutomaticGainControl and attach it to the AudioRecord on
// the specified audio session.
agc = AutomaticGainControl.create(audioSession);
if (agc != null) {
boolean enabled = agc.getEnabled();
boolean enable = shouldEnableAgc && canUseAutomaticGainControl();
if (agc.setEnabled(enable) != AudioEffect.SUCCESS) {
Logging.e(TAG, "Failed to set the AutomaticGainControl state");
}
Logging.d(TAG, "AutomaticGainControl: was "
+ (enabled ? "enabled" : "disabled")
+ ", enable: " + enable + ", is now: "
+ (agc.getEnabled() ? "enabled" : "disabled"));
} else {
Logging.e(TAG, "Failed to create the AutomaticGainControl instance");
}
}
if (isNoiseSuppressorSupported()) {
// Create an NoiseSuppressor and attach it to the AudioRecord on the
// specified audio session.
ns = NoiseSuppressor.create(audioSession);
if (ns != null) {
boolean enabled = ns.getEnabled();
boolean enable = shouldEnableNs && canUseNoiseSuppressor();
if (ns.setEnabled(enable) != AudioEffect.SUCCESS) {
Logging.e(TAG, "Failed to set the NoiseSuppressor state");
}
Logging.d(TAG, "NoiseSuppressor: was "
+ (enabled ? "enabled" : "disabled")
+ ", enable: " + enable + ", is now: "
+ (ns.getEnabled() ? "enabled" : "disabled"));
} else {
Logging.e(TAG, "Failed to create the NoiseSuppressor instance");
}
}
}

How to remove file from list after successful upload?

This is my first question on StackOverflow so please bear with my noobness.
I am writing a Cordova app with Ionic Framework and I am trying to upload multiple files from the camera to a server while displaying the uploaded files in a list and showing the progress for each of them. But I can't seem to figure out how to delete the files from the display list after a successful upload. I am trying to use the ID of the File I get after I push it to the array, but those seem to be incorrect sometimes. E.g. the ID in the progress event is different than in the success event and therefore I am removing the wrong file from the list or sometimes no file.
$scope.choosePic = function() {
window.imagePicker.getPictures(
function(results) {
for (var i = 0; i < results.length; i++) {
console.log('Image URI: ' + results[i]);
onSuccess(results[i]);
}
}, function (error) {
console.log('Error: ' + error);
}
);
}
$scope.delete = function ( item ) {
$scope.items.splice($scope.items.indexOf(item), 1);
}
var onSuccess = function(FILE_URI) {
console.log(FILE_URI);
$scope.picData = FILE_URI;
var filename = $scope.makeid();
var length = $scope.items.push({name: filename, image: $scope.picData, progress:0 });
$scope.$apply();
send($scope.picData,filename,length);
};
var onFail = function(e) {
console.log("On fail " + e);
}
send = function(imagedata,filename,length) {
var options = new FileUploadOptions();
var url = window.localStorage['URL'];
options.fileKey="file";
options.chunkedMode = false;
options.mimeType="image/jpeg";
options.headers = {Connection: "close"};
var params = {};
params.APIKEY = window.localStorage['APIKEY'];
params.DEVICEID = device.uuid;
options.params = params;
var ft = new FileTransfer();
var ID = length -1;
ft.onprogress = function(progressEvent) {
if (progressEvent.lengthComputable) {
var perc = Math.floor(progressEvent.loaded / progressEvent.total * 100);
if(!(typeof $scope.items[ID] == 'undefined')){
$scope.items[ID].progress=perc;
$scope.$apply();
console.log($scope.items[ID].name + "Upload progress: " + perc);
}
} else {
}
};
function onUploadSuccess(r) {
//alert("ID = " + ID + " Code = " + r.responseCode + "Response = " + r.response + "Sent = " + r.bytesSent);
//alert($scope.items[ID].name);
console.log("ID = " + ID + " Code = " + r.responseCode + "Response = " + r.response + "Sent = " + r.bytesSent);
$scope.items.splice(ID, 1); // remove uploaded image from list
$scope.$apply();
}
function onUploadFail(error) {
alert("An error has occurred: Code = " + error.code);
//console.log("upload error source " + error.source);
// console.log("upload error target " + error.target);
}
options.fileName=filename+".jpg";
ft.upload(imagedata, encodeURI(url), onUploadSuccess, onUploadFail, options);
}
});
I know this code probably rather clumsy but this the first time I am working with AngularJS and Cordova and the likes of it. Thanks for your help in advance.

Android Broadcast Issue - 60 Second Delay in Receiving Message

We have a process that broadcasts a message using the following code. This message is received and processed by a BroadcastReceiver (given below). We have a curious problem on some Android tablets and phones. The message that is broadcast is not received by the receiver for exactly 60 seconds. It is as if there is something that prevents the message from being broadcasted/delivered for 60 seconds. We have triple checked the code and there is no artificial delay being introduced in the code. Has anyone else seen this issue? We will appreciate any insight on the issue.
We are using Xamarin.Android 4.1.0 and have seen the issue on Samsung Note 10.1 and Note 3. We have not seen it on Nexus 7 or Sony tablets.
public static void BroadcastResult(string SN, string result, string errorMessage, string commandType = "DataBatch")
{
try
{
Android.Content.Intent broadcastIntent = new Android.Content.Intent("com.GoServicePro.ProcessorResults");
broadcastIntent.PutExtra("Type", commandType);
broadcastIntent.PutExtra("SN", SN.ToString());
broadcastIntent.PutExtra("RESULT", result);
broadcastIntent.PutExtra("EXCEPTION", errorMessage);
if (Global.gCustomizerCol != null)
{
if (Global.gCustomizerCol.Count > 0)
{
}
}
if (Global.CurrentContext == null)
Android.App.Application.Context.SendBroadcast(broadcastIntent);
else
Global.CurrentContext.SendBroadcast(broadcastIntent);
Logging.LogToProcessorLog("Broadcasted results: <" + commandType + ":" + SN + ":" + result + ":" + errorMessage + ">");
}
catch (Exception ex)
{
Logging.LogToProcessorLog("EXCEPTION: " + ex.Message + "\n" + ex.StackTrace);
}
}
[BroadcastReceiver(Enabled = true, Label = "GoServicePro Receiver")]
[IntentFilter(new string[] { "com.GoServicePro.ProcessorResults" })]
public class ProcessorReceiver : BroadcastReceiver
{
/// <summary>
/// Handler for processing completed message brodcasted by GoServiceProProcessorService.
/// </summary>
/// <param name="context"></param>
/// <param name="intent"></param>
public override void OnReceive(Context context, Intent intent)
{
string commandType = intent.GetStringExtra("Type");
try
{
string sn = intent.GetStringExtra("SN");
string result = intent.GetStringExtra("RESULT");
string error = intent.GetStringExtra("EXCEPTION");
switch (commandType)
{
case "DataBatch":
if (result == "SUCCESS")
{
Global.gintGSASeqNumIn += 1;
Database.UpdateBootDataSeqInfo();
Communication.QueueAck(Global.gintGSASeqNumIn);
Logging.LogMsg("Batch# " + sn + " was processed successfully.");
if (Global.SendRefresh != null)
Global.SendRefresh.Invoke(true, "ACTIVE_TAB", true, "GENERAL", 0, true);
Logging.LogMsg("Refresh sent to Main and WO forms", 2);
}
else if (result == "ABORT_FOR_BEGIN_REFRESH")
Logging.LogMsg("Batch# " + sn + " was aborted by SECONDARY process because it had BEGIN_FULL_REFRESH command. It will be processed by PRIMARY process");
else
{
Logging.LogMsg("Batch with serial# " + sn + " was NOT saved successfully. Error was:\n" + error);
Logging.LogMsg("Will retry batch with serial# " + sn);
}
break;
.
.
.
.

How to download and save a file using phonegap/cordova on Android

I am at my whit's end.
I will try to keep it brief.
Using Cordova/Phonegap 3.0 (and get the same results on 2.8.0).
Android version 4.0.4.
Code works on BlackBerry10 (Q10 and Z10).
On Android it errors with a JSON Error (no, I'm not parsing JSON, this seems to come out of cordova's bowels). I will paste the JSON.stringified error object at the end of this.
So, on to code then:
First a filesystem success function:
function onFSSuccess(fileSystem) {
if (fileSystem == null) {
window.alert("fileSystem is null");
}
var root = fileSystem.root;
root.getDirectory("com.app.id",{create:true},gotDir,onError);};
Then a function to handle success with directory retrieval:
function gotDir(d){
DATADIR = d;
doTheDl (d.fullPath + "/update.sql",fileTransfer);
};
Then the actual call to get the filesystem:
window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFSSuccess, null);
Then a function to download the file:
function doTheDl (localPath,fileTransfer) {
try {
window.alert ("Downloading to '" + localPath + "'");
fileTransfer.download (
uri,
localPath,
function (entry) {
try {
$("#dbDownloadProgressContainer").text("File saved to " + entry.name + ". Applying script to database...");
dbInitObj.applyUpdateScript(entry);
}
catch (e) {
window.alert ( e);
}
},
function (err) {
window.alert ("ERROROR!!! - " + err);
var errCodeName = err.code;
switch (err.code) {
case FileTransferError.FILE_NOT_FOUND_ERR:
errCodeName ='FILE_NOT_FOUND_ERR';
break;
case FileTransferError.INVALID_URL_ERR:
errCodeName="INVALID_URL_ERR";
break;
case FileTransferError.CONNECTION_ERR:
errCodeName="CONNECTION_ERR";
break;
case FileTransferError.ABORT_ERR:
errCodeName="ABORT_ERR";
break;
default:
errCodeName = "UNKNOWN";
break;
}
window.alert ("Download failed: " + err.source + ", " + err.target + ", " + errCodeName);
},
true
);
}
catch (e) {
window.alert ( e);
}
}
Man, gotta love all these async callbacks...
Next we get to the heart of the matter, trying to READ the downloaded file:
//Bulk of applyUpdateScript script ommited, but eventually it gets here:
function readComplete (evt) {
$("#dbDownloadProgressContainer").text("Parsing script file...");
//Got this gem from here: http://beckism.com/2010/09/splitting-lines-javascript/
var lines = evt.target.result.match(/^.*([\n\r]+|$)/gm);
//var lineIndx = lines.length;
window.setTimeout(function () {
$("#dbDownloadProgressContainer").text("Processing " + lines.length + " statements");
},50);
};
try {
var fileReader = new FileReader();
fileReader.onloadend=readComplete;
fileReader.onerror=function (err) {
//var errStr = translateFileError (err);
window.alert ("FileReader.onerror: " +JSON.stringify (err));
};
fileReader.onloadstart=function (evt) {
window.alert ("FileReader.onloadstart - " + JSON.stringify (evt));
};
fileReader.onload=function (evt)
{
window.alert ("FileReader.onload - Called when the read has successfully completed.- " + JSON.stringify (evt));
};
fileReader.onprogress = function (evt)
{
window.alert ("FileReader.onprogress - " + JSON.stringify (evt));
}
fileReader.onabort = function (evt)
{
window.alert ("FileReader.onabort - " + JSON.stringify (evt));
}
function gotFile (fileEntry) {
window.alert ("Activating reader for file '" + fileEntry.fullPath + "'");
fileReader.readAsText(fileEntry);
};
function noFileFound (fileError) {
alert ("Can not access database update script: code " + translateFileError (fileError));
};
// window.alert ("scriptPath.name = " + scriptPath.name);
DATADIR.getFile (scriptPath.name,null,gotFile,noFileFound);
}
catch (e) {
window.alert (e);
}
NOW, when I hit the reading bits, I eventually get this from the 'onerror' event (rember this is the JSON.stringfied error object:
{
"type":"error",
"bubbles":false,
"cancelBubble":false,
"cancelable":false,
"lengthComputable":false,
"loaded":0,
"total":0,
"target":{
"_readyState":2,
"_error":{
"code":"JSON error"
},
"_result":null,
"_fileName":"file:///mnt/sdcard/com.app.id/update.sql",
"_realReader":{
"error":null,
"result":"",
"readyState":0
}
}
}
Please also note that 'com.app.id' is a place holder for the actual app ID - can't paste that for fear of sensitive names. I did try other folder names as well.
Other notable(?) items:
The download progress event seems to indicate that we are downloading precisely double the actual file size (wtf?)
Results are the same on android device and emulator
BlackBerry10 seems to work fine
Thanks in advance to any clever people....

OK.
This was the solution:
function gotFile (fileEntry) {
fileEntry.file (function (file) {
fileReader.readAsText(file);
});
};
So thanks a BAJILLION to this dude:
http://www.html5rocks.com/en/tutorials/file/filesystem/?ModPagespeed=noscript
In case you missed it, the magic is the call to the "file(...)" function on the fileEntry object.
Why it works on the BB10 WITHOUT it....aarrgggghhh

FB.api('/me') always giving error code:2500 in phonegap android

I am using facebook plugin to login and logout a user, which are working fine. The problem is when I request for the logged in user details using the function FB.api('/me'), it always gives the following error:
{"message":"An active access token must be used to query information about the current user.","type":"OAuthException","code":2500}
I used the debug mode to check PluginResult(pr) and JSONObject of the response. JSONObject contains the user information, which I required, I dont get where I am doing wrong.
Plz help......
MY CODE:
function login() {
FB.login(function(response) {
if (response.session) {
console.log('Welcome! Fetching your information.... ');
FB.api('/me', function(response) {
console.log('Good to see you, ' + JSON.stringify(response) + '.');
});
} else {
console.log('User cancelled login or did not fully authorize.');
}
},{scope: 'email,user_likes'});
}
function logout() {
FB.logout(function(response) {
console.log(localStorage.getItem("user_fb_log_status"));
localStorage.setItem("user_fb_log_status","LOGGED_OUT");
alert('logged out');
});
}
The above code is working fine to login and logout the user. Below is the code i used to get the user details,
function me() {
FB.api('/me', { fields: 'id, name, picture' }, function(response) {
if (response.error) {
alert(JSON.stringify(response.error));
} else {
var data = document.getElementById('data');
fdata=response.data;
console.log("fdata: "+fdata);
response.data.forEach(function(item) {
var d = document.createElement('div');
d.innerHTML = "<img src="+item.picture+"/>"+item.name;
data.appendChild(d);
});
}
});
}

You need access token to retrieve more details than basic user information. Check that whether you have correct access token in Debug Tool to and ensure that you have all require permissions set permission.
Problem solved after changing the "session" in 'getResponse' method in ConnectPlugin to "authResponse"

FB.api method is working fine for me to get the user details and post a feed to the facebook after I change the following method in ConnectPlugin.java as following.
public JSONObject getResponse() {
String response = "{" + "\"status\": \""
+ (facebook.isSessionValid() ? "connected" : "unknown") + "\","
+
// "\"session\": {" + "\"access_token\": \""
// + facebook.getAccessToken() + "\"," + "\"expires\": \""
// + facebook.getAccessExpires() + "\","
// + "\"session_key\": true," + "\"sig\": \"...\","
// + "\"uid\": \"" + this.userId + "\"" +
"\"authResponse\": {" +
"\"accessToken\": \"" + facebook.getAccessToken() + "\"," +
"\"expiresIn\": \"" + facebook.getAccessExpires() + "\"," +
"\"session_key\": true," +
"\"sig\": \"...\"," +
"\"userId\": \"" + this.userId + "\"" +
"}" + "}";
try {
return new JSONObject(response);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return new JSONObject();
}