我阅读了这份文件http://dashif.org/wp-content/uploads/2015/04/DASH-IF-Conformance-Software-v0.9.pdf以了解必须完成 MPD 文件的规则是什么。
清单通过http://dashif.org/conformance.html进行了验证，结果是成功的。但是当我尝试加载播放器 DASH-JS（http://dashif.org/reference/players/javascript/1.4.0/samples/dash-if-reference-player/ ）时，它什么也没做。
<?xml version="1.0"?>
<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" type="static" minBufferTime="PT2S" mediaPresentationDuration="PT53250S">
<Period>
<AdaptationSet segmentAlignment="true" maxWidth="720" maxHeight="576" maxFrameRate="24" par="5:4" startWithSAP="1">
<ContentComponent id="1" contentType="video"/>
<SegmentTemplate presentationTimeOffset="13333333" timescale="10000000" initialization="seg_$RepresentationID$_init.mp4" media="seg_$RepresentationID$_t$Time$.mp4">
<SegmentTimeline>
<S d="50000000" t="13333333" r="117"/>
</SegmentTimeline>
</SegmentTemplate>
<Representation id="video_0" bandwidth="1700000" mimeType="video/mp4" width="720" height="576" frameRate="24" sar="1:1" codecs="avc1.64001E"/>
<Representation id="video_1" bandwidth="760000" mimeType="video/mp4" width="720" height="576" frameRate="24" sar="1:1" codecs="avc1.64001E"/>
<Representation id="video_2" bandwidth="580000" mimeType="video/mp4" width="720" height="576" frameRate="24" sar="1:1" codecs="avc1.64001E"/>
<Representation id="video_3" bandwidth="220000" mimeType="video/mp4" width="720" height="576" frameRate="24" sar="1:1" codecs="avc1.64001E"/>
<Representation id="video_4" bandwidth="140000" mimeType="video/mp4" width="720" height="576" frameRate="24" sar="1:1" codecs="avc1.64001E"/>
</AdaptationSet>
<AdaptationSet segmentAlignment="true" lang="und">
<AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="1"/>
<ContentComponent id="1" contentType="audio"/>
<SegmentTemplate presentationTimeOffset="13786666" timescale="10000000" initialization="seg_$RepresentationID$_init.mp4" media="seg_$RepresentationID$_t$Time$.mp4">
<SegmentTimeline>
<S d="52693333" t="13786666"/>
<S d="53333333" t="66480000"/>
<S d="53120000" t="119813333" r="1"/>
<S d="51413333" t="226053333"/>
<S d="52693333" t="277466666" r="1"/>
<S d="53333333" t="382853333"/>
<S d="53760000" t="436186666"/>
<S d="53333333" t="489946666"/>
<S d="52693333" t="543280000"/>
<S d="52266666" t="595973333"/>
<S d="52480000" t="648240000"/>
<S d="53333333" t="700720000"/>
<S d="52480000" t="754053333"/>
<S d="52693333" t="806533333"/>
<S d="52906666" t="859226666"/>
<S d="51200000" t="912133333"/>
<S d="53760000" t="963333333"/>
<S d="52053333" t="1017093333"/>
<S d="52906666" t="1069146666"/>
<S d="53546666" t="1122053333"/>
<S d="52053333" t="1175600000"/>
<S d="52906666" t="1227653333"/>
<S d="51840000" t="1280560000"/>
<S d="52693333" t="1332400000"/>
<S d="53760000" t="1385093333"/>
<S d="52480000" t="1438853333"/>
<S d="52906666" t="1491333333" r="1"/>
<S d="54186666" t="1597146666"/>
<S d="53760000" t="1651333333"/>
<S d="51413333" t="1705093333"/>
<S d="53546666" t="1756506666"/>
<S d="53760000" t="1810053333"/>
<S d="53546666" t="1863813333"/>
<S d="53333333" t="1917360000"/>
<S d="52053333" t="1970693333"/>
<S d="53760000" t="2022746666"/>
<S d="53333333" t="2076506666" r="1"/>
<S d="52266666" t="2183173333"/>
<S d="52906666" t="2235440000"/>
<S d="53973333" t="2288346666"/>
<S d="53120000" t="2342320000" r="1"/>
<S d="53546666" t="2448560000"/>
<S d="53333333" t="2502106666"/>
<S d="52906666" t="2555440000"/>
<S d="53546666" t="2608346666"/>
<S d="52693333" t="2661893333"/>
<S d="52906666" t="2714586666"/>
<S d="51413333" t="2767493333"/>
<S d="52693333" t="2818906666"/>
<S d="52906666" t="2871600000"/>
<S d="53546666" t="2924506666"/>
<S d="51413333" t="2978053333"/>
<S d="52266666" t="3029466666"/>
<S d="51413333" t="3081733333"/>
<S d="53760000" t="3133146666"/>
<S d="51626666" t="3186906666"/>
<S d="51840000" t="3238533333"/>
<S d="52906666" t="3290373333"/>
<S d="53120000" t="3343280000"/>
<S d="52480000" t="3396400000"/>
<S d="51413333" t="3448880000"/>
<S d="53120000" t="3500293333"/>
<S d="52266666" t="3553413333"/>
<S d="53546666" t="3605680000"/>
<S d="51840000" t="3659226666"/>
<S d="53120000" t="3711066666"/>
<S d="51413333" t="3764186666"/>
<S d="51626666" t="3815600000"/>
<S d="52693333" t="3867226666"/>
<S d="53546666" t="3919920000"/>
<S d="53120000" t="3973466666"/>
<S d="52906666" t="4026586666"/>
<S d="52053333" t="4079493333"/>
<S d="54186666" t="4131546666"/>
<S d="52053333" t="4185733333"/>
<S d="53333333" t="4237786666"/>
<S d="52906666" t="4291120000"/>
<S d="52693333" t="4344026666"/>
<S d="53546666" t="4396720000"/>
<S d="52266666" t="4450266666"/>
<S d="53120000" t="4502533333"/>
<S d="52906666" t="4555653333"/>
<S d="52053333" t="4608560000"/>
<S d="53333333" t="4660613333" r="1"/>
<S d="53546666" t="4767280000"/>
<S d="53333333" t="4820826666"/>
<S d="52906666" t="4874160000"/>
<S d="53760000" t="4927066666"/>
<S d="53546666" t="4980826666"/>
<S d="53760000" t="5034373333"/>
<S d="51840000" t="5088133333"/>
<S d="53546666" t="5139973333"/>
<S d="52906666" t="5193520000"/>
<S d="53333333" t="5246426666" r="1"/>
<S d="53973333" t="5353093333"/>
<S d="53546666" t="5407066666"/>
<S d="53120000" t="5460613333"/>
<S d="52906666" t="5513733333"/>
<S d="53120000" t="5566640000"/>
<S d="53333333" t="5619760000" r="1"/>
<S d="53546666" t="5726426666"/>
<S d="52480000" t="5779973333"/>
<S d="52906666" t="5832453333"/>
</SegmentTimeline>
</SegmentTemplate>
<Representation id="audio257_0" bandwidth="160000" mimeType="audio/mp4" codecs="mp4a.40.2"/>
<Representation id="audio257_1" bandwidth="160000" mimeType="audio/mp4" codecs="mp4a.40.2"/>
<Representation id="audio257_2" bandwidth="140000" mimeType="audio/mp4" codecs="mp4a.40.2"/>
<Representation id="audio257_3" bandwidth="120000" mimeType="audio/mp4" codecs="mp4a.40.2"/>
<Representation id="audio257_4" bandwidth="100000" mimeType="audio/mp4" codecs="mp4a.40.2"/>
</AdaptationSet>
</Period>
</MPD>
我很感激任何想法。
谢谢！