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<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN">Hi Stefan,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN">Thanks for your project, two quick questions:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo3"><![if !supportLists]><span style="color:#1F497D;mso-fareast-language:ZH-CN"><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman"">     
</span></span></span><![endif]><span style="color:#1F497D;mso-fareast-language:ZH-CN">Are you aware of another two open-source MPEG-DASH projects? DASHbin(</span><span style="color:#1F497D"><a href="https://code.google.com/p/mpeg-dash-gstreamer/">https://code.google.com/p/mpeg-dash-gstreamer/</a></span><span style="color:#1F497D;mso-fareast-language:ZH-CN">)
 and gstdashdemux(<a href="https://github.com/Orange-OpenSource/gstdashdemux#readme">https://github.com/Orange-OpenSource/gstdashdemux#readme</a>) , if YES, what’s most important benefits of libdash comparing with these two solutions?<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo3"><![if !supportLists]><span style="color:#1F497D;mso-fareast-language:ZH-CN"><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman"">     
</span></span></span><![endif]><span style="color:#1F497D;mso-fareast-language:ZH-CN">As you already know, Tizen uses gstreamer, do you have plan to come up with a gstreamer wrapper for libdash? That might be an important step to make libdash popular in other
 Linux distributions as well.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN">Appreciate your wiliness to contribute to Tizen, thanks again!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:ZH-CN">Yin, Yan<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext;mso-fareast-language:ZH-CN">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext;mso-fareast-language:ZH-CN">
 application-dev-bounces@lists.tizen.org [mailto:application-dev-bounces@lists.tizen.org]
<b>On Behalf Of </b>Stefan Lederer<br>
<b>Sent:</b> Monday, March 25, 2013 8:08 PM<br>
<b>To:</b> 'Dominig ar Foll (Intel OTC)'; application-dev@lists.tizen.org<br>
<b>Cc:</b> christopher.mueller@bitmovin.net<br>
<b>Subject:</b> Re: [Tizen Application-dev] libdash, an open-souce MPEG-DASH access library<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">Hello Dominig, <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">thanks for your response! It should be no problem to integrate libdash via an GStreamer plugin. The library is designed as an access interface to MPEG-DASH streams and can be used via  such a plugin. We have
 also a sample player in the libdash github repository [1] to show how to use/integrate libdash in existing media systems, like GStreamer. This sample player and the library will be updated in the next weeks to support all test vectors of the DASH264 initiative
 of the DASH Industry Forum [2], which would be the first library enabling this. <o:p>
</o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Our open source resources are currently bound in the sample player and middleware development around libdash (at least at the moment). However, we can provide assistance for anybody who is interested to integrate
 libdash. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal">[1] <a href="https://github.com/bitmovin/libdash">https://github.com/bitmovin/libdash</a><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">[2] <a href="http://www.dashif.org">
www.dashif.org</a> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="DE-AT" style="color:#1F497D">Best regards, <o:p>
</o:p></span></p>
<p class="MsoNormal"><span lang="DE-AT" style="color:#1F497D">Stefan<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Verdana","sans-serif";color:gray">____________________________</span></b><br>
<b><span style="font-size:9.0pt;font-family:"Tahoma","sans-serif";color:#595959">DI Stefan Lederer</span></b><span style="font-size:9.0pt;font-family:"Tahoma","sans-serif";color:#595959">
<o:p></o:p></span></p>
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<p class="MsoNormal"><b><i><span lang="DE-AT" style="font-size:7.0pt;font-family:"Tahoma","sans-serif";color:#7F7F7F;mso-fareast-language:DE-AT"><img border="0" width="179" height="29" id="Grafik_x0020_2" src="cid:image001.png@01CE2AE0.8D0B9330" alt="cid:image004.png@01CDBEA1.BDDDE360"></span></i></b><span style="font-size:8.0pt;font-family:"Tahoma","sans-serif""><br>
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<p class="MsoNormal"><b><span lang="DE" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext;mso-fareast-language:DE-AT">Von:</span></b><span lang="DE" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext;mso-fareast-language:DE-AT">
<a href="mailto:application-dev-bounces@lists.tizen.org">application-dev-bounces@lists.tizen.org</a> [<a href="mailto:application-dev-bounces@lists.tizen.org">mailto:application-dev-bounces@lists.tizen.org</a>]
<b>Im Auftrag von </b>Dominig ar Foll (Intel OTC)<br>
<b>Gesendet:</b> Mittwoch, 20. </span><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext;mso-fareast-language:DE-AT">März 2013 14:44<br>
<b>An:</b> <a href="mailto:application-dev@lists.tizen.org">application-dev@lists.tizen.org</a><br>
<b>Betreff:</b> Re: [Tizen Application-dev] libdash, an open-souce MPEG-DASH access library<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt">Stefan,<br>
<br>
Tizen uses GStreamer has media pipe line and MPEG Dash will need to be integrated via that way.<br>
So what is needed is a Gstreamer plugin and support of MPEG Dash source via Playbin2 and Webkit media player sub system.<br>
Then integration in Tizen will be very obvious as it will be come transparent to the Apps.<br>
<br>
Regards </span><o:p></o:p></p>
<pre>Dominig ar Foll<o:p></o:p></pre>
<pre>Senior Architect<o:p></o:p></pre>
<pre>Intel Open Source Technology Centre<o:p></o:p></pre>
<p class="MsoNormal">Le 11/03/13 13:34, Stefan Lederer a écrit :<o:p></o:p></p>
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<p class="MsoNormal">Dear all, <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Sorry for sending this to multiple list, I’m not sure which is the most suitable one for this
<span style="font-family:Wingdings">J</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-AU">We are interested and happy to contribute our open source MPEG-DASH library libdash to your projects. MPEG-DASH is an emerging standard designed for media delivery over the top of existing infrastructures and able to
 handle varying bandwidth conditions during a streaming session. This requirement is very important, specifically within mobile environments like in 3G/4G networks, which are characterized by highly fluctuating bandwidth conditions, and thus, DASH will become
 a major driver for mobile multimedia streaming like , e.g.,  in vehicular or smartphone environments. Our components have already been tested in such vehicular environments (like shown in [1] as well in the short report in [2]) and would fit very well in your
 environments.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-AU"> </span><o:p></o:p></p>
<p class="MsoNormal">In particular we want to highlight our open-source library libdash, which is a C++ library that provides an object orient (OO) interface to the MPEG-DASH standard. You can find more information on our website [3], on the libdash mailing
 list [4] as well as on Github [5].  <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">This is an overview of the libdash features: <o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">        
</span></span></span><![endif]>Cross platform build system based on cmake that includes Windows, Linux and Mac.<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">        
</span></span></span><![endif]>Open source available and licensed under the LGPL.<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">        
</span></span></span><![endif]>Implements the full MPEG-DASH standard according to ISO/IEC 23009-1, Information Technology – Dynamic Adaptive Streaming over HTTP (DASH) – Part 1: Media Presentation Description and Segment Formats<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">        
</span></span></span><![endif]>Handles the download and xml parsing of the MPD. Based on that it provides an OO based interface to the MPD.<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">        
</span></span></span><![endif]>Media elements, e.g., SegmentURL, SegmentTemplate, etc., are downloadable in that OO based structure and can be downloaded through libdash, which internally uses libcurl.<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">        
</span></span></span><![endif]>Therefore basically all protocols that libcurl supports, e.g., HTTP, FTP, etc. are supported by libdash.<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">        
</span></span></span><![endif]>However it also provides a configurable download interface, which enables the use of external connections that can be implemented by the user of the library for the download of media segments.<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">        
</span></span></span><![endif]>The use of such external connections will be shown in the libdash_networkpart_test project which is part of libdash solution and also part of the cross platform cmake system and therefore usable on Windows, Linux and Mac.<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">        
</span></span></span><![endif]>The project contains a sample multimedia player that is based on ffmpeg which uses libdash for the playback of one of our dataset MPD’s.<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">        
</span></span></span><![endif]>The development is based on Windows, therefore the code contains a VS10 solution with additional tests and the sample multimedia player.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">In addition to the public available open source resources and our libdash mailing list support, we provide professional development and integration services, consulting, high-quality streaming components/logics, etc. based on your individual
 needs. Feel free to contact me so we can discuss your requirements. <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Best regards,<o:p></o:p></p>
<p class="MsoNormal">Stefan <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">[1] Christopher Müller (bitmovin), Stefan Lederer (bitmovin) and Christian Timmerer (bitmovin), An Evaluation of Dynamic Adaptive Streaming over HTTP in Vehicular Environments, In Proceedings of the ACM Multimedia Systems Conference 2012
 and the 4th ACM Workshop on Mobile Video, Chapel Hill, North Carolina, February 24, 2012. URL:
<span lang="DE-AT"><a href="http://www-itec.uni-klu.ac.at/bib/files/p37-mueller.pdf"><span lang="EN-US">http://www-itec.uni-klu.ac.at/bib/files/p37-mueller.pdf</span></a>
</span><o:p></o:p></p>
<p class="MsoNormal">[2] <span lang="DE-AT"><a href="http://www.bitmovin.net/bitmovin_MPEG_DASH_Client_Evaluation.pdf"><span lang="EN-US">http://www.bitmovin.net/bitmovin_MPEG_DASH_Client_Evaluation.pdf</span></a>
</span><o:p></o:p></p>
<p class="MsoNormal">[3] <span lang="DE-AT"><a href="http://www.bitmovin.net/libdash/"><span lang="EN-US">http://www.bitmovin.net/libdash/</span></a>
</span><o:p></o:p></p>
<p class="MsoNormal">[4] <span lang="DE-AT"><a href="http://vicky.bitmovin.net/mailman/listinfo/libdash-dev"><span lang="EN-US">http://vicky.bitmovin.net/mailman/listinfo/libdash-dev</span></a>
</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="DE-AT">[5] <a href="https://github.com/bitmovin/libdash">
https://github.com/bitmovin/libdash</a> <o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="DE-AT" style="font-family:"Verdana","sans-serif";color:gray">____________________________</span></b><span lang="DE-AT"><br>
</span><b><span lang="DE-AT" style="font-size:9.0pt;font-family:"Tahoma","sans-serif";color:#595959">DI Stefan Lederer</span></b><span lang="DE-AT" style="font-size:9.0pt;font-family:"Tahoma","sans-serif";color:#595959">
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<pre>_______________________________________________<o:p></o:p></pre>
<pre>Application-dev mailing list<o:p></o:p></pre>
<pre><span lang="DE-AT"><a href="mailto:Application-dev@lists.tizen.org"><span lang="EN-US">Application-dev@lists.tizen.org</span></a></span><o:p></o:p></pre>
<pre><span lang="DE-AT"><a href="https://lists.tizen.org/listinfo/application-dev"><span lang="EN-US">https://lists.tizen.org/listinfo/application-dev</span></a></span><o:p></o:p></pre>
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