清单信号 - AWS Elemental MediaTailor

本文為英文版的機器翻譯版本,如內容有任何歧義或不一致之處,概以英文版為準。

清单信号

MediaTailor 當清單中看到特定的 SCTE-35 標記時,觸發重疊廣告支持。所需的信號是接合指令類型 6 或時間信號,即「提供者覆疊」廣告起始信號。此訊號的設定類型 ID 為 0x38

下列範例會顯示 JSON 物件中的 0x38 SCTE-35 標記。

{ "tableId": 252, "selectionSyntaxIndicator": false, "privateIndicator": false, "sectionLength": 53, "protocolVersion": 0, "encryptedPacket": false, "encryptedAlgorithm": 0, "ptsAdjustment": 0, "cwIndex": 0, "tier": 4095, "spliceCommandLength": 5, "spliceCommandType": 6, "spliceCommand": { "specified": true, "pts": 1800392 }, "descriptorLoopLength": 31, "descriptors": [ { "spliceDescriptorTag": 2, "descriptorLength": 29, "indentifier": "CUEI", "segmentationEventId": 158389361, "segmentationEventCancelIndicator": false, "programSegmentationFlag": true, "segmentationDurationFlag": true, "deliveryNotRestrictedFlag": false, "webDeliveryAllowedFlag": true, "noRegionalBlackoutFlag": true, "archiveAllowedFlag": true, "deviceResctrictions": 3, "segmentationDuration": 1350000, "segmentationUpidType": 9, "segmentationUpidLength": 7, "segmentationUpid": { "0": 111, "1": 118, "2": 101, "3": 114, "4": 108, "5": 97, "6": 121 }, "segmentationTypeId": 56, "segmentNum": 1, "segmentsExpected": 0 } ], "crc": 2510422713 }

下面的例子顯示了表示為二進制(基數 32 /十六進制)值的 SCTE-35 信號:

0xfc303500000000000000fff00506fe001b78c8001f021d435545490970d4717fdf00000dbba009076f7665726c6179380100000084226c4f

以下示例顯示了 HLS 和短跑清單中的 SCTE-35 標記。

範例 : HLS 艙單
#EXTM3U #EXT-X-VERSION:6 #EXT-X-TARGETDURATION:7 #EXT-X-MEDIA-SEQUENCE:419 #EXT-X-DISCONTINUITY-SEQUENCE:3 #EXT-X-PROGRAM-DATE-TIME:2023-08-15T04:30:09.231Z #EXTINF:6.02, https://aws.cloudfront.net/media/asset1/index1_00007.ts #EXT-X-DISCONTINUITY #EXT-X-KEY:METHOD=NONE #EXT-X-PROGRAM-DATE-TIME:2023-08-15T04:30:15.251Z #EXTINF:6.0, https://aws.cloudfront.net/media/asset1/index1_00001.ts #EXT-X-PROGRAM-DATE-TIME:2023-08-15T04:30:21.251Z #EXTINF:4.0, https://aws.cloudfront.net/media/asset1/index1_00002.ts #EXT-X-DISCONTINUITY #EXT-X-DATERANGE:ID="1692073825251-30-1",START-DATE="2023-08-15T04:30:25.251Z",DURATION=10.0,PLANNED-DURATION=10.0,SCTE35-OUT=0xfc303500000000000000fff00506fe001b78c8001f021d435545490970d4717fdf00000dbba009076f7665726c6179380100000084226c4f #EXT-X-PROGRAM-DATE-TIME:2023-08-15T04:30:25.251Z #EXTINF:2.0, https://aws.cloudfront.net/media/asset1/index1_00003.ts #EXT-X-PROGRAM-DATE-TIME:2023-08-15T04:30:27.251Z #EXTINF:6.0, https://aws.cloudfront.net/media/asset1/index1_00004.ts #EXT-X-PROGRAM-DATE-TIME:2023-08-15T04:30:33.251Z #EXTINF:2.0, https://aws.cloudfront.net/media/asset1/index1_00005.ts #EXT-X-DISCONTINUITY #EXT-X-PROGRAM-DATE-TIME:2023-08-15T04:30:35.251Z #EXTINF:4.0, https://aws.cloudfront.net/media/asset1/index1_00006.ts #EXT-X-PROGRAM-DATE-TIME:2023-08-15T04:30:39.251Z #EXTINF:6.02, https://aws.cloudfront.net/media/asset1/index1_00007.ts
範例 :短跑清單
<?xml version="1.0"?> <MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:scte35="urn:scte:scte35:2013:xml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" availabilityStartTime="2023-08-15T16:34:05.911Z" minBufferTime="PT30S" minimumUpdatePeriod="PT2S" profiles="urn:mpeg:dash:profile:isoff-live:2011" publishTime="2023-08-15T16:34:17.950Z" suggestedPresentationDelay="PT20S" timeShiftBufferDepth="PT1M30S" type="dynamic" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 http://standards.iso.org/ittf/PubliclyAvailableStandards/MPEG-DASH_schema_files/DASH-MPD.xsd"> <Period xmlns="urn:mpeg:dash:schema:mpd:2011" id="1692117245944_1" start="PT0.033S"> <BaseURL>https://aws.cloudfront.net/out/v1/abc/123/def/</BaseURL> <EventStream schemeIdUri="urn:scte:scte35:2013:xml" timescale="90000"> <Event duration="900000"> <scte35:SpliceInfoSection protocolVersion="0" ptsAdjustment="0" tier="4095"> <scte35:TimeSignal> <scte35:SpliceTime ptsTime="0"/> </scte35:TimeSignal> <scte35:SegmentationDescriptor segmentNum="0" segmentationDuration="900000" segmentationEventCancelIndicator="false" segmentationEventId="1" segmentationTypeId="56" segmentsExpected="0" subSegmentNum="0" subSegmentsExpected="0"> <scte35:SegmentationUpid segmentationUpidFormat="hexBinary" segmentationUpidType="14">63736f7665726c6179</scte35:SegmentationUpid> </scte35:SegmentationDescriptor> </scte35:SpliceInfoSection> </Event> </EventStream> <AdaptationSet bitstreamSwitching="true" mimeType="video/mp4" segmentAlignment="true" startWithSAP="1" subsegmentAlignment="true" subsegmentStartsWithSAP="1"> <Representation bandwidth="3000000" codecs="avc1.4D4028" frameRate="30/1" height="1080" id="1" width="1920"> <SegmentTemplate initialization="../cf684d31ec9e451ca98d2349989f6c0a/855c733eed20493ab3cc1100750bcf0b/index_video_1_0_init.mp4" media="../cf684d31ec9e451ca98d2349989f6c0a/855c733eed20493ab3cc1100750bcf0b/index_video_1_0_$Number$.mp4" presentationTimeOffset="0" startNumber="1" timescale="30000"> <SegmentTimeline> <S d="60000" r="6" t="1000"/> <S d="30000" t="421000"/> </SegmentTimeline> </SegmentTemplate> </Representation> <Representation bandwidth="2499968" codecs="avc1.4D4028" frameRate="30/1" height="1080" id="2" width="1920"> <SegmentTemplate initialization="../cf684d31ec9e451ca98d2349989f6c0a/855c733eed20493ab3cc1100750bcf0b/index_video_2_0_init.mp4" media="../cf684d31ec9e451ca98d2349989f6c0a/855c733eed20493ab3cc1100750bcf0b/index_video_2_0_$Number$.mp4" presentationTimeOffset="0" startNumber="1" timescale="30000"> <SegmentTimeline> <S d="60000" r="6" t="1000"/> <S d="30000" t="421000"/> </SegmentTimeline> </SegmentTemplate> </Representation> <Representation bandwidth="2200000" codecs="avc1.4D401F" frameRate="30/1" height="720" id="3" width="1280"> <SegmentTemplate initialization="../cf684d31ec9e451ca98d2349989f6c0a/855c733eed20493ab3cc1100750bcf0b/index_video_3_0_init.mp4" media="../cf684d31ec9e451ca98d2349989f6c0a/855c733eed20493ab3cc1100750bcf0b/index_video_3_0_$Number$.mp4" presentationTimeOffset="0" startNumber="1" timescale="30000"> <SegmentTimeline> <S d="60000" r="6" t="1000"/> <S d="30000" t="421000"/> </SegmentTimeline> </SegmentTemplate> </Representation> </AdaptationSet> <AdaptationSet lang="eng" mimeType="audio/mp4" segmentAlignment="0"> <Label>Alternate Audio</Label> <Representation audioSamplingRate="48000" bandwidth="128000" codecs="mp4a.40.2" id="9"> <AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/> <SegmentTemplate initialization="../cf684d31ec9e451ca98d2349989f6c0a/855c733eed20493ab3cc1100750bcf0b/index_audio_9_0_init.mp4" media="../cf684d31ec9e451ca98d2349989f6c0a/855c733eed20493ab3cc1100750bcf0b/index_audio_9_0_$Number$.mp4" presentationTimeOffset="0" startNumber="1" timescale="48000"> <SegmentTimeline> <S d="98304" t="0"/> <S d="96256" t="98304"/> <S d="95232" t="194560"/> <S d="96256" r="2" t="289792"/> <S d="95232" t="578560"/> <S d="46080" t="673792"/> </SegmentTimeline> </SegmentTemplate> </Representation> </AdaptationSet> </Period> </MPD>