本文属于机器翻译版本。若本译文内容与英语原文存在差异，则一律以英文原文为准。

DASH清单时间信号示例

DASH时间信号的原点清单示例

以下示例显示了DASH从内容来源收到的清单中的广告。以下示例显示 scte35:TimeSignal 标记：

  <Period start="PT346530.250S" id="178443" duration="PT61.561S">
          <EventStream timescale="90000" schemeIdUri="urn:scte:scte35:2013:xml">
            <Event  duration="5310000">
              <scte35:SpliceInfoSection protocolVersion="0" ptsAdjustment="183003" tier="4095">
                <scte35:TimeSignal>
                  <scte35:SpliceTime ptsTime="3442857000"/>
                </scte35:TimeSignal>
                <scte35:SegmentationDescriptor segmentationEventId="1414668" segmentationEventCancelIndicator="false" segmentationDuration="8100000">
                  <scte35:DeliveryRestrictions webDeliveryAllowedFlag="false" noRegionalBlackoutFlag="false" archiveAllowedFlag="false" deviceRestrictions="3"/>
                  <scte35:SegmentationUpid segmentationUpidType="12" segmentationUpidLength="2" segmentationTypeId="52" segmentNum="0" segmentsExpected="0">0100</scte35:SegmentationUpid>
                </scte35:SegmentationDescriptor>
              </scte35:SpliceInfoSection>
            </Event>
          </EventStream>
          <AdaptationSet mimeType="video/mp4" segmentAlignment="true" subsegmentAlignment="true" startWithSAP="1" subsegmentStartsWithSAP="1" bitstreamSwitching="true">
            <Representation id="1" width="960" height="540" frameRate="30000/1001" bandwidth="1000000" codecs="avc1.4D401F">
              <SegmentTemplate timescale="30000" media="index_video_1_0_$Number$.mp4?m=1528475245" initialization="index_video_1_0_init.mp4?m=1528475245" startNumber="178444" presentationTimeOffset="10395907501">
                <SegmentTimeline>
                  <S t="10395907501" d="60060" r="29"/>
                  <S t="10397709301" d="45045"/>
                </SegmentTimeline>
              </SegmentTemplate>
            </Representation>
          </AdaptationSet>
          <AdaptationSet mimeType="audio/mp4" segmentAlignment="0" lang="eng">
            <Representation id="2" bandwidth="96964" audioSamplingRate="48000" codecs="mp4a.40.2">
              <SegmentTemplate timescale="48000" media="index_audio_2_0_$Number$.mp4?m=1528475245" initialization="index_audio_2_0_init.mp4?m=1528475245" startNumber="178444" presentationTimeOffset="16633452001">
                <SegmentTimeline>
                  <S t="16633452289" d="96256" r="3"/>
                  <S t="16633837313" d="95232"/>
                  <S t="16633932545" d="96256" r="4"/>
                  <S t="16634413825" d="95232"/>
                  <S t="16634509057" d="96256" r="5"/>
                  <S t="16635086593" d="95232"/>
                  <S t="16635181825" d="96256" r="4"/>
                  <S t="16635663105" d="95232"/>
                  <S t="16635758337" d="96256" r="5"/>
                  <S t="16636335873" d="71680"/>
                </SegmentTimeline>
              </SegmentTemplate>
            </Representation>
          </AdaptationSet>
        </Period>
       

DASH时间信号的个性化响应示例

AWS Elemental MediaTailor 根据广告规格对广告进行个性化设置。个性化设置反映了从播放器和当前正在进行的广告活动接收的查看者数据。

以下示例显示了对广告进行 AWS Elemental MediaTailor 个性化设置后的可用性。

  <Period id="178443_1" start="PT96H15M30.25S">
          <BaseURL>http://d2gh0tfpz97e4o.cloudfront.net/nbc_fallback_2/</BaseURL>
          <AdaptationSet bitstreamSwitching="false" frameRate="30/1" mimeType="video/mp4" segmentAlignment="true" startWithSAP="1" subsegmentAlignment="true" subsegmentStartsWithSAP="1">
            <SegmentTemplate startNumber="1" timescale="90000"/>
            <Representation bandwidth="10000000" codecs="avc1.640028" height="1080" id="1" width="1920">
              <SegmentTemplate initialization="nbc_fallback_ad_2_1080p_10init.mp4" media="nbc_fallback_ad_2_1080p_10_$Number%09d$.mp4" startNumber="1" timescale="90000">
                <SegmentTimeline>
                  <S d="180000" r="13" t="0"/>
                  <S d="176940" t="2520000"/>
                </SegmentTimeline>
              </SegmentTemplate>
            </Representation>
            <Representation bandwidth="4000000" codecs="avc1.64001f" height="720" id="2" width="1280">
              <SegmentTemplate initialization="nbc_fallback_ad_2_720p_9init.mp4" media="nbc_fallback_ad_2_720p_9_$Number%09d$.mp4" startNumber="1" timescale="90000">
                <SegmentTimeline>
                  <S d="180000" r="13" t="0"/>
                  <S d="176940" t="2520000"/>
                </SegmentTimeline>
              </SegmentTemplate>
            </Representation>
            <Representation bandwidth="2500000" codecs="avc1.64001f" height="720" id="3" width="1280">
              <SegmentTemplate initialization="nbc_fallback_ad_2_720p_8init.mp4" media="nbc_fallback_ad_2_720p_8_$Number%09d$.mp4" startNumber="1" timescale="90000">
                <SegmentTimeline>
                  <S d="270000" r="8" t="0"/>
                  <S d="266940" t="2430000"/>
                </SegmentTimeline>
              </SegmentTemplate>
            </Representation>
            <Representation bandwidth="2000000" codecs="avc1.64001f" height="540" id="4" width="960">
              <SegmentTemplate initialization="nbc_fallback_ad_2_540p_7init.mp4" media="nbc_fallback_ad_2_540p_7_$Number%09d$.mp4" startNumber="1" timescale="90000">
                <SegmentTimeline>
                  <S d="360000" r="6" t="0"/>
                  <S d="176940" t="2520000"/>
                </SegmentTimeline>
              </SegmentTemplate>
            </Representation>
            <Representation bandwidth="1350000" codecs="avc1.64001e" height="396" id="5" width="704">
              <SegmentTemplate initialization="nbc_fallback_ad_2_396p_6init.mp4" media="nbc_fallback_ad_2_396p_6_$Number%09d$.mp4" startNumber="1" timescale="90000">
                <SegmentTimeline>
                  <S d="360000" r="6" t="0"/>
                  <S d="176940" t="2520000"/>
                </SegmentTimeline>
              </SegmentTemplate>
            </Representation>
            <Representation bandwidth="900000" codecs="avc1.64001e" height="396" id="6" width="704">
              <SegmentTemplate initialization="nbc_fallback_ad_2_396p_5init.mp4" media="nbc_fallback_ad_2_396p_5_$Number%09d$.mp4" startNumber="1" timescale="90000">
                <SegmentTimeline>
                  <S d="360000" r="6" t="0"/>
                  <S d="176940" t="2520000"/>
                </SegmentTimeline>
              </SegmentTemplate>
            </Representation>
            <Representation bandwidth="600000" codecs="avc1.64001e" height="396" id="7" width="704">
              <SegmentTemplate initialization="nbc_fallback_ad_2_396p_4init.mp4" media="nbc_fallback_ad_2_396p_4_$Number%09d$.mp4" startNumber="1" timescale="90000">
                <SegmentTimeline>
                  <S d="360000" r="6" t="0"/>
                  <S d="176940" t="2520000"/>
                </SegmentTimeline>
              </SegmentTemplate>
            </Representation>
            <Representation bandwidth="450000" codecs="avc1.640016" height="288" id="8" width="512">
              <SegmentTemplate initialization="nbc_fallback_ad_2_288p_3init.mp4" media="nbc_fallback_ad_2_288p_3_$Number%09d$.mp4" startNumber="1" timescale="90000">
                <SegmentTimeline>
                  <S d="360000" r="6" t="0"/>
                  <S d="176940" t="2520000"/>
                </SegmentTimeline>
              </SegmentTemplate>
            </Representation>
            <Representation bandwidth="300000" codecs="avc1.640016" height="288" id="9" width="512">
              <SegmentTemplate initialization="nbc_fallback_ad_2_288p_2init.mp4" media="nbc_fallback_ad_2_288p_2_$Number%09d$.mp4" startNumber="1" timescale="90000">
                <SegmentTimeline>
                  <S d="360000" r="6" t="0"/>
                  <S d="176940" t="2520000"/>
                </SegmentTimeline>
              </SegmentTemplate>
            </Representation>
            <Representation bandwidth="200000" codecs="avc1.640016" height="288" id="10" width="512">
              <SegmentTemplate initialization="nbc_fallback_ad_2_288p_1init.mp4" media="nbc_fallback_ad_2_288p_1_$Number%09d$.mp4" startNumber="1" timescale="90000">
                <SegmentTimeline>
                  <S d="180000" r="13" t="0"/>
                  <S d="176940" t="2520000"/>
                </SegmentTimeline>
              </SegmentTemplate>
            </Representation>
          </AdaptationSet>
          <AdaptationSet lang="eng" mimeType="audio/mp4" segmentAlignment="0">
            <SegmentTemplate initialization="nbc_fallback_ad_2_audio_aac_a1_128kinit.mp4" media="nbc_fallback_ad_2_audio_aac_a1_128k_$Number%09d$.mp4" startNumber="1" timescale="48000"/>
            <Representation audioSamplingRate="48000" bandwidth="128000" codecs="mp4a.40.2" id="11">
              <SegmentTemplate initialization="nbc_fallback_ad_2_audio_aac_a1_128kinit.mp4" media="nbc_fallback_ad_2_audio_aac_a1_128k_$Number%09d$.mp4" startNumber="1" timescale="48000">
                <SegmentTimeline>
                  <S d="96000" r="13" t="0"/>
                  <S d="94368" t="1344000"/>
                </SegmentTimeline>
              </SegmentTemplate>
            </Representation>
          </AdaptationSet>
          <AdaptationSet lang="enm" mimeType="audio/mp4" segmentAlignment="0">
            <SegmentTemplate initialization="nbc_fallback_ad_2_audio_aac_a2_128kinit.mp4" media="nbc_fallback_ad_2_audio_aac_a2_128k_$Number%09d$.mp4" startNumber="1" timescale="48000"/>
            <Representation audioSamplingRate="48000" bandwidth="128000" codecs="mp4a.40.2" id="12">
              <SegmentTemplate initialization="nbc_fallback_ad_2_audio_aac_a2_128kinit.mp4" media="nbc_fallback_ad_2_audio_aac_a2_128k_$Number%09d$.mp4" startNumber="1" timescale="48000">
                <SegmentTimeline>
                  <S d="96000" r="13" t="0"/>
                  <S d="94368" t="1344000"/>
                </SegmentTimeline>
              </SegmentTemplate>
            </Representation>
          </AdaptationSet>
          <AdaptationSet lang="por" mimeType="audio/mp4" segmentAlignment="0">
            <SegmentTemplate initialization="nbc_fallback_ad_2_audio_aac_a3_128kinit.mp4" media="nbc_fallback_ad_2_audio_aac_a3_128k_$Number%09d$.mp4" startNumber="1" timescale="48000"/>
            <Representation audioSamplingRate="48000" bandwidth="128000" codecs="mp4a.40.2" id="13">
              <SegmentTemplate initialization="nbc_fallback_ad_2_audio_aac_a3_128kinit.mp4" media="nbc_fallback_ad_2_audio_aac_a3_128k_$Number%09d$.mp4" startNumber="1" timescale="48000">
                <SegmentTimeline>
                  <S d="96000" r="13" t="0"/>
                  <S d="94368" t="1344000"/>
                </SegmentTimeline>
              </SegmentTemplate>
            </Representation>
          </AdaptationSet>
          <AdaptationSet lang="spa" mimeType="audio/mp4" segmentAlignment="0">
            <SegmentTemplate initialization="nbc_fallback_ad_2_audio_aac_a4_128kinit.mp4" media="nbc_fallback_ad_2_audio_aac_a4_128k_$Number%09d$.mp4" startNumber="1" timescale="48000"/>
            <Representation audioSamplingRate="48000" bandwidth="128000" codecs="mp4a.40.2" id="14">
              <SegmentTemplate initialization="nbc_fallback_ad_2_audio_aac_a4_128kinit.mp4" media="nbc_fallback_ad_2_audio_aac_a4_128k_$Number%09d$.mp4" startNumber="1" timescale="48000">
                <SegmentTimeline>
                  <S d="96000" r="13" t="0"/>
                  <S d="94368" t="1344000"/>
                </SegmentTimeline>
              </SegmentTemplate>
            </Representation>
          </AdaptationSet>
        </Period>