ios - HTML5 video for iPhone / iPad. How to detect connection speed? -

-

i need stream video in safari iphone/ipad best possible quality.

i created 2 video files: 1 in low-quality slow 3g speed, 1 in hi-quality wifi broadband streaming. noticed apps (youtube example) able detect if mobile device running 3g or wifi, , select small sized video rather hi-quality video.

now dom / javascript code, $v value replaced php , contains video filename:

<video id="thevideo" src="streaming/video_<?=$v ?>.m4v" width="600" height="360" width="640" height="360" preload="preload" controls="controls" autoplay="autoplay"> flowplayer/video<?=$v ?>.m4v </video>      <script type="text/javascript"> var myvideo = document.getelementbyid("thevideo");  myvideo.load(); myvideo.play(); </script>

can write in javascript / webkit able detect connection mode?

thanks all.

  • i assuming in own application:

you use apple's reachability determine connection type in application before sending uiwebview's request. can modify request's url adding query:

//determine connection type via reachability  myurlstring = [myurlstring stringbyappendingstring:[nsstring stringwithformat:@"?conntype=%@", *conntypestring]];  //then send request page.

then, parse url query in php determine video url should used.

  • if not, need test connection speed via third-party javascript or php script.

example: http://jan.moesen.nu/code/php/speedtest/index.php?numkb=512


Comments

Post a Comment

Popular posts from this blog

android - Spacing between the stars of a rating bar? -

-
ho can set spacing beween stars? thats ratingbar: ratingbar = (ratingbar) inflater.inflate(r.layout.ratingbar, null); ratingbar.setlayoutparams(new layoutparams(layoutparams.wrap_content, layoutparams.wrap_content)); the layout: <?xml version="1.0" encoding="utf-8"?> <ratingbar xmlns:android="http://schemas.android.com/apk/res/android" style="@style/mystyle" android:layout_alignparentright="true" android:layout_height="19dp" android:layout_width="wrap_content" android:numstars="5"> </ratingbar> the style: <style name="mystyle" parent="@android:style/widget.ratingbar"> <item name="android:progressdrawable">@drawable/android_r2_ratingstar_yellow</item> <item name="android:indeterminatedrawable">@drawable/android_r2_ratingstar_grey</item> </style> thanks, cheers you have ...
Read more

html - Instapaper-like algorithm -

-
does of algorithm extracts contents webpage? instapaper ? there 2 steps instapaper does: find main content block on page (excluding headers, footers, menus etc) from content block extract , format text to find content block (typically html block element, div containing key page text content) instapaper uses algorithm 1 used readability . can @ source of readability.js see what's going on, @ core tries find area on page highest text/link ratio, although has other simple scoring metrics (e.g. off top of head, things ratio of text commas, para elements etc) go heuristics. once have identified root node element, relevant content, you'll need format it, if want can pull node element containing text out of source document , insert yours, in reality you'll want remove existing styles , apply own, standard , feel. if want output nice text-only can use jericho's renderer . update1 : should mention else instapaper - follow 'pagination' links (...
Read more

c# - How to execute a particular part of code asynchronously in a class -

-
i creating speech recognition engine that's going respond user commands.i have created button enable , disable speech recognition per user convenience.i have used dispose() of speech engine disable speech recoginition.here code private void button1_click(object sender, routedeventargs e) { engineon = !engineon; if (engineon) { speechengine = speech.createspeechengine(); //speech class creates , returns new speech engine. speechengine.audiolevelupdated += new eventhandler<audiolevelupdatedeventargs>(speechengine_audiolevelupdated); // use system's default microphone speechengine.setinputtodefaultaudiodevice(); speechengine.loadgrammar(new dictationgrammar()); // start listening speechengine.recognizeasync(recognizemode.multiple); } else { speechclass.myengine.dispose(); } } but disposal of speech obj...
Read more