[Icecast] Current Listeners count wrong for HTML Audio on Android?

Scott Winters 0turn1 at gmail.com
Tue May 5 00:41:29 PDT 2015


Hello

I always have had best results encoding the stream .mp3 it works on all
devices. I also suggest the source to be the same or better than your
stream.. this saves in many areas. it sounds like you are possibly
debugging a time lapsed source/ stream.. i did not read all so if this is
not so i apologize
On May 5, 2015 3:11 AM, "Klaas van der Linden" <
vanderlinden at culturalservices.nl> wrote:

> Thanks for this information, but the two connections do not die out when
> using my player in the Android browser. In fact they even stay when the
> Audio.src is set to some invalid string.
>
>
>
> You can observe this here:
> http://concertzender.nl/wp-content/themes/cz-theme/App/test/ , by
> clicking one of the large icons - and then monitor the corresponding stream
> here: http://streams.greenhost.nl:8080/
>
>
>
> (The player doesn’t work on safari (windows/mac) or firefox, probably
> because mp3 is not supported they fail to register the ‘canplay’ event or
> something like that – I’m not sure. I got it to work on IE, Opera, Chrome
> and iPhone Safari and on Android.)
>
>
>
> Any suggestions as to how to debug this?
>
>
>
>
>
> *From:* icecast-bounces at xiph.org [mailto:icecast-bounces at xiph.org] *On
> Behalf Of *Brad Isbell
> *Sent:* zondag 3 mei 2015 2:46
> *To:* Icecast streaming server user discussions
> *Subject:* Re: [Icecast] Current Listeners count wrong for HTML Audio on
> Android?
>
>
>
> Klaas,
>
> You will find that there often are multiple connections, particularly for
> HTML5 audio elements in WebKit browsers as they probe to see if the media
> is seekable or not.  The multiple connections die out soon after starting
> though, leaving you one connection for actually streaming the audio.
>
>
>
> You can verify this yourself with a packet sniffer such as Wireshark.  It
> wouldn't hurt to double check to make sure your application isn't really
> using all that data.
>
>
> *Brad Isbell // AudioPump, Inc.*
> brad at audiopump.co
> Skype: bradisbell
> Phone: +1 312-488-4680
>
>
>
> On Sat, May 2, 2015 at 6:59 PM, Klaas van der Linden <
> vanderlinden at culturalservices.nl> wrote:
>
> Dear all,
>
> The problem I am facing, is that one of my clients is concerned about data
> usage.
>
> My client monitors the current number of listeners in  the Mount Point
> list streams.greenhost.nl:8080.
>
>
>
> The case is, when I start a stream from an HTML app on an Android device,
> I can see two listeners being added to “Current Listeners”. This peculiar
> behaviour only occurs on Android, not on laptops or iPhones.
>
>
>
> The code I use concerns a simple HTML Audio object:
>
> var audioObj = new Audio();
>
> audioObj.src = aValidMountpoint;
>
> audioObj.play();
>
>
>
> I tested these lines and it appears that for Android a “Current Listener”
> is added on both the second and the third line.
>
>
>
> I can’t imagine there really are two streams streaming at the same time,
> as it is only one object that arranges this.
>
>
>
> Is this a known issue? Any workaround or any way to prove my client that
> there is only one stream playing?
>
>
>
> Regards,
>
>
>
> Klaas van der Linden
>
>
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