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  1. Member
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    Hi all, I'm new to this forum so greetings to all. I'm downloading some videos from a stream but after downloading when I'm planning them only black screen with no audio is appearing. Can anyone tell me what's going on? One thing is that these streams are stored on cloudfront platform
    Thanks in advance
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  2. Member
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    Video is downloadable from the link but not playing in vlc
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  3. Member
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    MediaInfo ---> info file: video encrypted

    Image
    [Attachment 54197 - Click to enlarge]


    so, if you post here link to video, maybe some angels try to give you correct download string...
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  4. Member
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    Originally Posted by lomero View Post
    MediaInfo ---> info file: video encrypted

    Image
    [Attachment 54197 - Click to enlarge]


    so, if you post here link to video, maybe some angels try to give you correct download string...
    First of all thank you for your time and expanation. These are the stream my teacher sends us through his personal website link as due to COVID19 situation we can't go to college and have to study from home. But I was trying to download as I'm limited to bandwidth 100 GB per month and have to share with my family members. So I was trying to download as if I want to watch them for second or third time to revise the concept I don't have to waste bandwidth (It's limited for me) So can anyone tell me to watch them offline? Is there any way?
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  5. Member
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    no. encrypted video you can download it, but don't play it. only server, at the time of playback, it provides a decryption key.
    for this reason i asked you for the link.
    only way (for your side) is capture screen at playback.
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  6. Member Emeritus
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    Originally Posted by vhlp View Post
    These are the stream my teacher sends us through his personal website link as due to COVID19 situation we can't go to college and have to study from home. But I was trying to download as I'm limited to bandwidth 100 GB per month and have to share with my family members. So I was trying to download as if I want to watch them for second or third time to revise the concept I don't have to waste bandwidth (It's limited for me) So can anyone tell me to watch them offline? Is there any way?
    The link that you posted uses vdocipher.

    Sometimes vdocipher content also has a mobile version available that does not use drm.

    Try using a mobile user agent, or post a playable embed link to the video.
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  7. Member
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    Ask the instructor for a direct download link. If he/she decides it's important that you be able to review the video offline, he/she would likely provide it.
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  8. Member
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    Originally Posted by ponens View Post
    Originally Posted by vhlp View Post
    These are the stream my teacher sends us through his personal website link as due to COVID19 situation we can't go to college and have to study from home. But I was trying to download as I'm limited to bandwidth 100 GB per month and have to share with my family members. So I was trying to download as if I want to watch them for second or third time to revise the concept I don't have to waste bandwidth (It's limited for me) So can anyone tell me to watch them offline? Is there any way?
    The link that you posted uses vdocipher.

    Sometimes vdocipher content also has a mobile version available that does not use drm.

    Try using a mobile user agent, or post a playable embed link to the video.
    Can you please elaborate me some more on vdocipher mobile agent? As when I open this weblink on Android device it opens only on Zen player app not on any smartphone browser
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  9. Member
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    Originally Posted by lingyi View Post
    Ask the instructor for a direct download link. If he/she decides it's important that you be able to review the video offline, he/she would likely provide it.
    Sorry man I've already asked him for that but he used to say that it is the direct link which he has given to us. Only once he said to me that if I want to download videos than I'll have to pay his server running cost as he knows definitely that no one of his students gonna pay his website maintaining cost. What a man he is. LoL
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  10. Member
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    Originally Posted by lomero View Post
    no. encrypted video you can download it, but don't play it. only server, at the time of playback, it provides a decryption key.
    for this reason i asked you for the link.
    only way (for your side) is capture screen at playback.
    Screen capture is automatically get disabled during video playback. And for the link I'll post it to you as soon as he starts a live class on and sends me link through email. Should I post it to you via PM?
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  11. Member
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    Screen capture is automatically get disabled during video playback
    not possible. recoder screen it is independent. you can record your empty windows screen, with one or more folder open, with or without browser open or not. screen recorder record all.
    try CamStudio https://sourceforge.net/projects/camstudio/ it's free, fast and bery simply to use
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  12. Member
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    Originally Posted by lomero View Post
    Screen capture is automatically get disabled during video playback
    not possible. recoder screen it is independent. you can record your empty windows screen, with one or more folder open, with or without browser open or not. screen recorder record all.
    try CamStudio https://sourceforge.net/projects/camstudio/ it's free, fast and bery simply to use
    Extremely sorry for not telling that I was recording my smartphone screen and as I've posted above that on smartphone they use an application called Zen player which disables screen recording. Ok I'll try camstudio on my PC. Mainly I open the link on smartphone as it comes to my inbox and I open it by tapping and directly it hops from browser to that Zen player
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  13. Member
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    simply open url on pc browser and use camstudio (don't use your smartphone!)
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  14. Member Emeritus
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    Originally Posted by vhlp View Post
    Can you please elaborate me some more on vdocipher mobile agent? As when I open this weblink on Android device it opens only on Zen player app not on any smartphone browser
    Read through this entire thread.

    Originally Posted by vhlp View Post
    And for the link I'll post it to you as soon as he starts a live class on and sends me link through email.
    Downloading may be more problematic for a live stream. Unless, after the live stream is over, the content is archived and still remains playable.

    Originally Posted by vhlp View Post
    Mainly I open the link on smartphone
    If the link does not expire, a playable link would be useful in order to determine if a drm-free version of the video is available, as explained in the thread referenced at the top of this reply.
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  15. Member
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    I got some more information on the link by inspecting page info section

    HTML Code:
    </style>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-3-typeahead/4.0.1/bootstrap3-typeahead.min.js"></script>
    
    <script src="https://player.vimeo.com/api/player.js"></script>
    <div class="container-fluid" style="background: #FAFAFA;margin-top: 5px;">
        <div class="container col-12 col-md-12 breadcrumbdiv">
            <a href="/"> Home</a>
            <a href="/courses"><i class="fa fa-angle-right"> </i> Courses</a>
            <a href="/course/20/c/c++-programming"><i class="fa fa-angle-right"> </i> C/C++ Programming Complete Fundamental</a>
            <a href="/lecture/20/c/c++-programming/593/introduction-to-structures/21/structuresfiles-miscellaneous"><i class="fa fa-angle-right"> </i> Introduction to Structures</a>
             <div class="pull-right col-3 d-none d-sm-block"><input class="typeahead form-control" type="text" placeholder="Search Videos"></div> 
        </div>
    </div>
    
    
    <div class="container mb-4">
        <div class="row">
            <div class="col-12 col-md-10 col- mb-5">
                <h1 style="font-size:36px;" class="mt-3 mb-2">Introduction to Structures</h1>
                <span style="font-size:18px;"><b>Instructor:</b> Lalbahadur Ghosh</span>
                <span style="font-size:18px;" class="ml-3"><b>Duration:</b> 31 mins </span>
                <span style="font-size:18px;" class="ml-3"><button class="btn btn-sm btn-outline-dark fullscreen-btn" style=""  onclick="viewfullscreen()"><i class="fa fa-fullscreen"></i>Full Screen</button></span>
                
    
            </div>
            <div class="col-12 col-md-2 mt-3">
             
                            <button class="btn  theme-bg btn-sm col-12 text-white" onclick="completeLecture(593)" style="font-size:14px;font-weight:501;height:50px;">COMPLETE</button>
                        
            </div>
    
        </div>
        <div class="row">
    
    
            <div class="col-12 col-md-8 p-0" style="box-shadow: 0 2px 4px 0 rgba(0,0,0,0.16),0 2px 10px 0 rgba(0,0,0,0.12) !important;border-radius: 4px;">            
                    <div class="col-12 col-md-12 lecture-video-iframe-div my-2" id="video-content" style="margin:auto;">                    
                        <button id="close-button" class="btn btn-danger" onclick="closeFullScreen()">Close</button>
                                                                                                            
                            
    <div id="embedBox" style="width:1280px;max-width:100%;height:auto; min-height: 400px;"></div>
    <script>
      (function(v,i,d,e,o){v[o]=v[o]||{}; v[o].add = v[o].add || function V(a){ (v[o].d=v[o].d||[]).push(a);};
    if(!v[o].l) { v[o].l=1*new Date(); a=i.createElement(d), m=i.getElementsByTagName(d)[0];
    a.async=1; a.src=e; m.parentNode.insertBefore(a,m);}
    })(window,document,"script","https://cdn-gce.vdocipher.com/playerAssets/1.6.10/vdo.js","vdo");
    vdo.add({
      otp: "20160313versASE3239ph1KUPjqyyXS2krfoamna3J2bwzGdP4GslGnkxEM9WRy2",
      playbackInfo: "eyJ2aWRlb0lkIjoiOWFhNjY1NmQ4OWU2NDJhZDljNDA0MTAxM2IzMmU1NTgifQ==",
      plugins: [{
        name: 'keyboard',
        options: {
          preset: 'default'
        }
      }],
      theme: "9ae8bbe8dd964ddc9bdb932cca1cb59a",
      container: document.querySelector( "#embedBox" ),
    });
    
    function getVideoPlayedTime(){
        if(vdo.getObjects()){
            var videos = vdo.getObjects();
            var video = videos[videos.length - 1];
            console.log(video.totalPlayed);
    
            var activityTime = video.totalPlayed;
            // Ajax call to update time with give insertedActivityId
            $.ajax({
                url: '/ajaxcustomer/updatecustomeractivitybyid',
                method: 'post',
                data: {'insertId':264257, 'ativityTime':activityTime},
                success: function (data) {
                    return true;
                }
            });
            
            setTimeout(function(){ getVideoPlayedTime(); }, 30000); 
        }    
      }
      setTimeout(function(){ getVideoPlayedTime(); }, 30000);
    
    </script>
    
    May be some one of you guys can understand anything from it
    Last edited by vhlp; 21st Jul 2020 at 08:00. Reason: got something to edit
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  16. Member
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    Originally Posted by lomero View Post
    simply open url on pc browser and use camstudio (don't use your smartphone!)
    Thanks as this time I was able to get the video by recording but no audio
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  17. Member
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    from option (by default) record audio isn't available (see image)
    click to enable

    Image
    [Attachment 54217 - Click to enlarge]
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  18. Member Emeritus
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    Originally Posted by vhlp View Post
    I got some more information on the link by inspecting page info section

    otp: "20160313versASE3239ph1KUPjqyyXS2krfoamna3J2bwzGdP 4GslGnkxEM9WRy2",

    May be some one of you guys can understand anything from it
    The otp code will work, as explained in the other thread.

    However, it was expired by the time I read your message. If you get a fresh otp, it will work as explained in the other thread.
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