I would like to implement media player functionality to my custom receiver.
On the google developer website, I found a description to implement a sender and a styled media receiver application.
I have done this sample, and it works fine. I can cast a MP3 file hosted on Google Drive to my chromecast device.
Now, I have implemented a custom receiver (see attachment) which should be able to play an URL refered to a m3u8 file. For this, I am using the Media Player Library as suggested from Google.
<body>
<div>
<p id='text'> </p>
<video id='vid'> </video>
</div>
<script type="text/javascript" src="https://www.gstatic.com/cast/sdk/libs/receiver/2.0.0/cast_receiver.js"></script>
<script type="text/javascript" src="https://www.gstatic.com/cast/sdk/libs/mediaplayer/1.0.0/media_player.js"></script>
<script type="text/javascript">
// If you set ?Debug=true in the URL, such as a different App ID in the
// developer console, include debugging information.
if (window.location.href.indexOf('Debug=true') != -1) {
cast.receiver.logger.setLevelValue(cast.receiver.LoggerLevel.DEBUG);
cast.player.api.setLoggerLevel(cast.player.api.LoggerLevel.DEBUG);
}
console.log("mediaElement set");
var mediaElement = document.getElementById('vid');
// Create the media manager. This will handle all media messages by default.
window.mediaManager = new cast.receiver.MediaManager(mediaElement);
// Remember the default value for the Receiver onLoad, so this sample can Play
// non-adaptive media as well.
window.defaultOnLoad = mediaManager.onLoad;
mediaManager.onLoad = function (event) {
// The Media Player Library requires that you call player unload between
// different invocations.
if (window.player !== null) {
player.unload(); // Must unload before starting again.
window.player = null;
}
// This trivial parser is by no means best practice, it shows how to access
// event data, and uses the a string search of the suffix, rather than looking
// at the MIME type which would be better. In practice, you will know what
// content you are serving while writing your player.
if (event.data['media'] && event.data['media']['contentId']) {
console.log('Starting media application');
var t = document.getElementById('text');
t.innerHTML = event.data['media'];
console.log("EventData: "+event.data);
console.log("EventData-Media: "+event.data['media']);
console.log("EventData-ContendID: "+event.data['media']['contentId']);
var url = event.data['media']['contentId'];
console.log("URL: "+url);
// Create the Host - much of your interaction with the library uses the Host and
// methods you provide to it.
window.host = new cast.player.api.Host(
{'mediaElement':mediaElement, 'url':url});
var ext = url.substring(url.lastIndexOf('.'), url.length);
var initStart = event.data['media']['currentTime'] || 0;
var autoplay = event.data['autoplay'] || true;
var protocol = null;
mediaElement.autoplay = autoplay; // Make sure autoplay get's set
protocol = cast.player.api.CreateHlsStreamingProtocol(host);
host.onError = function(errorCode) {
console.log("Fatal Error - "+errorCode);
if (window.player) {
window.player.unload();
window.player = null;
}
};
// If you need cookies, then set withCredentials = true also set any header
// information you need. If you don't need them, there can be some unexpected
// effects by setting this value.
// host.updateSegmentRequestInfo = function(requestInfo) {
// requestInfo.withCredentials = true;
// };
console.log("we have protocol "+ext);
if (protocol !== null) {
console.log("Starting Media Player Library");
window.player = new cast.player.api.Player(host);
window.player.load(protocol, initStart);
}
else {
window.defaultOnLoad(event); // do the default process
}
}
}
window.player = null;
console.log('Application is ready, starting system');
window.castReceiverManager = cast.receiver.CastReceiverManager.getInstance();
castReceiverManager.start();
</script>
</body>
I've figured out, that it's just possible to cast .m3u8, .ism and .mpd files with the Media Player Library. So I created a m3u8 file as follows, host it to Google Drive, and tried to cast it to my custom receiver.
#EXTM3U
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=173952
https://www.googledrive.com/host/0B1x31lLRAxTMRndtNkhSWVdGLVE
But it doesn't works. I used the Goolge Cast Developer Console to debug the custom receiver. By exceuting the
window.player.load(protocol, initStart);
command, I get an FATAL ERROR on the console.
I think the problem is on the custom receiver code because the sender application from the google documentation works fine with the styled media receiver.
Is there anyone who know this problem or see some issue on the custom receiver code? Has anyone a idea how I could debug the styled media player? It would be much easier if I could see which messages are exchanged with the styled media player but if I activate the debugging I can´t see the exchanged messages.
If you turn on the debugging, you can see message exchanges (see here, under the Debugging section). There is a full fledged receiver sample project on our github repo as well.
Related
I am currently developing an Android application using Cordova. This working fine so far, but now that I want to add a Chromecast button to the UI, it does not seem to work. I followed the instructions provided here: https://developers.google.com/cast/docs/chrome_sender/integrate
And this is what my code looks so far:
var CastPlayer = function() {
//...
/* Cast player variables */
/** #type {cast.framework.RemotePlayer} */
this.remotePlayer = null;
/** #type {cast.framework.RemotePlayerController} */
this.remotePlayerController = null;
//...
};
var castPlayer = new CastPlayer();
window['__onGCastApiAvailable'] = function(isAvailable) {
if (isAvailable) {
castPlayer.initializeCastPlayer();
}
};
Inline script inside my index.html.
CastPlayer.prototype.initializeCastPlayer = function() {
var options = {};
// Set the receiver application ID to your own (created in the
// Google Cast Developer Console), or optionally
// use the chrome.cast.media.DEFAULT_MEDIA_RECEIVER_APP_ID
options.receiverApplicationId = chrome.cast.media.DEFAULT_MEDIA_RECEIVER_APP_ID;
// Auto join policy can be one of the following three:
// ORIGIN_SCOPED - Auto connect from same appId and page origin
// TAB_AND_ORIGIN_SCOPED - Auto connect from same appId, page origin, and tab
// PAGE_SCOPED - No auto connect
options.autoJoinPolicy = chrome.cast.AutoJoinPolicy.ORIGIN_SCOPED;
cast.framework.CastContext.getInstance().setOptions(options);
this.remotePlayer = new cast.framework.RemotePlayer();
this.remotePlayerController = new cast.framework.RemotePlayerController(this.remotePlayer);
this.remotePlayerController.addEventListener(
cast.framework.RemotePlayerEventType.IS_CONNECTED_CHANGED,
this.switchPlayer.bind(this)
);
};
Content of my index.js.
In the index.html, I added the button like this:
<google-cast-launcher id="castbutton"></google-cast-launcher>
Now when I open my Cordova app via browser (Chrome AND Chromium), the cast button shows and I can use it normally. When I open the App on Android, the Button just does not show. Does anybody know what causes this and if it can be resolved?
We could not find a solution for Cordova, but managed it in Flutter.
We had the same challenge, and we searched high and low. Finally found this solution to make it work with: https://pub.dev/packages/dart_chromecast
Make sure your flutter compiler is downgraded to 13 or below. Otherwise, you will not be able to compile. Unfortunately, their code is not supported in a newer version of the flutter compiler and the author is not going to update anytime soon.
I'm using the following html code. I'm able to get a video stream on my desktop, but I'm getting a grey play button in the android webView app. I'm serving this over a https connection.
Please guide me as Im new to both of these code snippets.
HTML
<div id="video-container">
<video id="camera-stream" width="500" autoplay></video>
</div>
Script.js
window.onload = function() {
navigator.getUserMedia = (navigator.getUserMedia ||
navigator.webkitGetUserMedia ||
navigator.mozGetUserMedia ||
navigator.msGetUserMedia);
if (navigator.getUserMedia) {
navigator.getUserMedia({ video: true },
function(localMediaStream) {
var vid = document.getElementById('camera-stream');
vid.srcObject = localMediaStream;
},
function(err) {
console.log('The following error occurred when trying to use getUserMedia: ' + err);
}
);
} else { alert('Sorry, your browser does not support getUserMedia'); }
}
This screenshot is taken from my desktop chrome browser.
and this is taken from my phone webView.
I know this is an old thread but I recently run into the same issue and only after a lot of tries I finally found the solution.
If you see this play button all the permission should be set correctly.
It seems that the webview is waiting for an user interaction to start the stream but tapping on the icon does not starts the video (idk how the user should "approve" the streaming)
The solution is to change the setting of the webview in you webapp:
webView.settings.mediaPlaybackRequiresUserGesture = false;
In this way the stream starts correctly without any user interaction
I have three buttons on my website, that link to Facebook, Twitter & vk.com pages. I want to open native app, if it is installed on user device. Otherwise, I want URL fallback to be opened.
First of all, I tried to use native app schemes directly with deep-link.js plugin. But, when I tried to open native app URL scheme, when native app was not installed, Safari has shown an error, but opened URL fallback page finally. Default Android browser said that he does not know how to handle such URL scheme:
<a class="btn btn-primary" href="https://www.facebook.com/warpcompany" data-app-ios="fb://profile/838619192839881" data-app-android="fb://page/838619192839881">Facebook</a>
Then I tried to use App Links "standard", that that has so much promotion from Facebook. I even tried to use their hosted app links, to make sure I've generated everything right way. It does not work, it always redirect to website fallback. You can easily test it by yourself from https://fb.me/746134728830806
Is it possible to provide deep link on website, that will open native app without errors at least in default os browsers, or fallback silently to URL?
It is still possible, but on newer versions of the Android default browser you have to use intents instead of just trying to open the deep link. For example replace your fb://page/838619192839881 with
intent://page/838619192839881#Intent;scheme=fb;package=com.facebook.katana;end
This will fallback to Google play by default, but you can override the fallback adding a S.browser_fallback_url:
intent://page/838619192839881#Intent;scheme=fb;package=com.facebook.katana;S.browser_fallback_url=http%3A%2F%2Fwww.facebook.com%2F;end
The fallback should be url encoded.
Of course you'll have issues if the user is not on an Android phone or with an old version of the default browser (or strange browser). You can setup a bunch of conditions and replace your HTML with the correct code for each case.
The accepted answer will only work on Chrome v28 and default browsers for Android 5.0. If you want this to work on other browser like Facebook/Twitter webviews, Firefox, UC and older default browsers than 5.0, you'll need to use some code that's a little more complicated.
Add this function to your JS snippet:
var openSesame = function() {
var method = 'iframe';
var fallbackFunction = function() {
if (method == 'iframe') {
window.location = "market://details?id=com.facebook.katana";
}
};
var addIFrame = function() {
var iframe = document.createElement("iframe");
iframe.style.border = "none";
iframe.style.width = "1px";
iframe.style.height = "1px";
iframe.src = "fb://page/838619192839881";
document.body.appendChild(iframe);
};
var loadChromeIntent = function() {
method = 'intent';
document.location = "intent://page/838619192839881#Intent;scheme=fb;package=com.facebook.katana;end";
};
if (navigator.userAgent.match(/Chrome/) && !navigator.userAgent.match("Version/")) {
loadChromeIntent();
}
else if (navigator.userAgent.match(/Firefox/)) {
window.location = "fb://page/838619192839881";
}
else {
addIFrame();
}
setTimeout(fallbackFunction, 750);
};
Then your button will look like this:
Open the App
Or you can use a service like branch.io which does exactly what you're looking for automatically.
Yes it is! Have a look to this training:
https://developer.android.com/training/app-indexing/deep-linking.html
Is this the information you needed? lmk
So, I'm maintaining the main page of an archive located here, where an audio element gets inserted with a randomly chosen RELATIVE link to an audio file. It plays the audio fine on desktop browsers, but it fails to play the audio on Android mobile browsers, like Dolphin Jetpack and Opera Mobile. Code that creates the audio element:
var d = document, $ = function(a){ return d.querySelector(a); }, o, a, b
audios = ["htmlfiles/Log4/Audio Files/1339041384627.png.audio02.ogg",
"htmlfiles/Log4/Audio Files/1339039129463.png.audio01.ogg",
"htmlfiles/Log5/Audio Files/s05_08.png.audio01.ogg",
"htmlfiles/Log6/Audio files/s06_19.png.audio01.ogg",
"htmlfiles/Log7P1/Audio Files/s07_01.png.audio01.ogg",
"htmlfiles/Log10/Audio files/1343286991927.png.audio01.ogg",
"htmlfiles/Log10/Audio files/1343293678793.gif.audio02.ogg",
"AudioFiles/1343888663849.png.audio02.ogg",
"AudioFiles/1345719774310.png.audio01.ogg",
"AudioFiles/1346311163394.png.audio02.ogg",
"AudioFiles/1346919244950.png.audio02.ogg",
"AudioFiles/1347509276756.png.audio01.ogg",
"AudioFiles/1347515470408.png.audio02.ogg",
"AudioFiles/1348079866537.png.audio01.ogg",
"AudioFiles/1349419913717.png.audio01.ogg",
"AudioFiles/1350030423418.png.audio01.ogg",
"AudioFiles/1350033736151.png.audio02.ogg",
"AudioFiles/1351231673165.png.audio01.ogg",
"AudioFiles/1343870457212.png.audio01.ogg"];
/*The code above is in the head tag, the one below is at the end of the body tag*/
window.opera && (o = $('div:not([id])')).parentNode.removeChild(o);
var audio = d.createElement("audio")/*, source = d.createElement("source")*/;
audio.autoplay = audio.controls = audio.loop = true;
// source.type = "audio/ogg";
audio.src =/* source.src =*/ audios[Math.floor(Math.random() * audios.length)];
// audio.appendChild(source);
audio.appendChild(d.createTextNode("Your browser does not support the audio element."));
$("div#container").insertBefore(audio, $("div#container > div:last-of-type").nextElementSibling);
I'd like to know what can cause such behaviour. I've tested both mobile browsers on w3schools' try-it page, and their audio worked fine there. I'm suspecting it could be something with the https protocol.
Edit: I've reported the bug for Opera through the report wizard, and for Mobotap via an email with a link to this question.
Just getting rid of this zombie. In the end, I think updating the browsers at a later point fixed it.
I have been researching all morning about integrating an android barcode scanner app into a web page, but haven't found exactly what I need to know. I want to have a web page that the user can fill in text fields by using an android barcode scanner. So the user would be on a web page and would either click inside the text field or click a button next to the text field that would start the android barcode scanner. They would then scan the barcode and the text field would be filled in.
I have found solutions on how to do this and then go to a different page, but it is important that the user stays on the same page. I have seen the zxing project and thought that might be able to be used, but I'm not sure if it allows for the page to stay the same.
I'm pretty sure this is possible and is wondering if any one could give me a high level overview on how they would do it. I was thinking it might be able to be done with an ajax request that gets submitted on a button click. The ajax request would get sent to my server, the server would send something to the android device that would start the scanner and return the data which in turn gets sent back in the ajax response. Is there any way to cut out the server though and just have the android browser starting the barcode scanner? Thank you for your time and I appreciate any discussion on it.
ZXing (zebra crossing) provides the capability to initiate the bar code scanner via a webpage through a button click event, anchor tag, or other action that could call a URL on a mobile device.
When the barcode scanner application is installed on an android device, a URL call to:
zxing://scan/?ret=http://foo.com/products/{CODE}/description&SCAN_FORMATS=UPC_A,EAN_13
Will bring up the device bar code reader, the user scans the code, and the code is returned via the callback URL parameter supplied in the zxing URL.
You can view an example (works on android) here: http://zxing.appspot.com/scan
You can try this for Android:
You can use Zxing library for barcode scan for webpages
<!DOCTYPE html>
<script type="text/javascript">
//This entire block of script should be in a separate file, and included in each doc in which you want scanner capabilities
function zxinglistener(e){
localStorage["zxingbarcode"] = "";
if(e.url.split("\#")[0] == window.location.href){
window.focus();
processBarcode(decodeURIComponent(e.newValue));
}
window.removeEventListener("storage", zxinglistener, false);
}
if(window.location.hash != ""){
localStorage["zxingbarcode"] = window.location.hash.substr(1);
self.close();
window.location.href="about:blank";//In case self.close is disabled
}else{
window.addEventListener("hashchange", function(e){
window.removeEventListener("storage", zxinglistener, false);
var hash = window.location.hash.substr(1);
if (hash != "") {
window.location.hash = "";
processBarcode(decodeURIComponent(hash));
}
}, false);
}
function getScan(){
var href = window.location.href.split("\#")[0];
window.addEventListener("storage", zxinglistener, false);
zxingWindow = window.open("zxing://scan/?ret=" + encodeURIComponent(href + "#{CODE}"),'_self');
}
</script>
<html>
<head>
<script type="text/javascript">
function processBarcode(b){
var d = document.createElement("div");
d.innerHTML = b;
document.body.appendChild(d);
}
</script>
</head>
<body>
<button onclick="getScan()">get Scan</button>
</body>
</html>
For reference: Read link
Using a javascript interface and loadurl(javascript...) you can communicate with your webpage from Android
public void loadScript(String script){
webview.loadUrl("javascript:(function() { " + script + "})()");
}
private class JavaScriptInterface {
public void startQRScan() {
...
}
}
There are plenty of examples on google.