JP5720051B2 - デジタル・ストリーム内の遅延変動測定方法及び装置 - Google Patents
デジタル・ストリーム内の遅延変動測定方法及び装置 Download PDFInfo
- Publication number
- JP5720051B2 JP5720051B2 JP2010242689A JP2010242689A JP5720051B2 JP 5720051 B2 JP5720051 B2 JP 5720051B2 JP 2010242689 A JP2010242689 A JP 2010242689A JP 2010242689 A JP2010242689 A JP 2010242689A JP 5720051 B2 JP5720051 B2 JP 5720051B2
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234318—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into objects, e.g. MPEG-4 objects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/242—Synchronization processes, e.g. processing of PCR [Program Clock References]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
- H04N21/43072—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen of multiple content streams on the same device
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44209—Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless network
Description
130 TV
140 統合デジタルTV
150 セット・トップ・ボックス
160 結合装置
200 オーディオ/ビデオ・エンコード装置
210 エンコーダ
215 PTS及びDTS挿入回路
220 マルチプレクサ
230 エンコーダ・クロック発生器
240 PCRカウンタ
250 レジスタ
405 デマルチプレクサ
410、440、450 トランスポート・バッファ
412 マルチプレクス・バッファ
414 エレメンタリ・ストリーム・バッファ
416、446、456 デコーダ
418 再順序バッファ
420 マルチプレクサ(MUX)
442、452 メイン・バッファ
710 デマルチプレクサ
720 デコーダ
740 PCR検出ユニット
750 ローカル・デコーダ・クロック
760 PTS及びDTS検出回路
770 PTS/DTS対PCR比較ユニット
780 表示器
Claims (2)
- 任意のビデオ規格によるデジタル・オーディオビジアル・データ・ストリーム内の第1及び第2エレメンタリ・ストリームの間の遅延変動を測定する方法であって、
デジタル・オーディオビジアル・データ・ストリーム・タイムスタンプ値を検出して蓄積する処理と、
上記第1及び第2エレメンタリ・ストリーム用のエレメンタリ・ストリーム・タイムスタンプ値を検出して蓄積する処理と、
上記第1及び第2エレメンタリ・ストリーム・タイムスタンプ値よりも高いレートで転送される上記デジタル・オーディオビジアル・データ・ストリーム・タイムスタンプ値と共に上記第1及び第2エレメンタリ・ストリーム・タイムスタンプ値をそれぞれ補間して、共通のサンプリング・ポイントを有する補間データ・セットを形成する処理と、
上記第2エレメンタリ・データ・ストリームの上記補間データ・セットから上記第1エレメンタリ・データ・ストリームの上記補間データ・セットを減算して、上記第1及び第2エレメンタリ・ストリームの間の時間経過に伴う遅延の変化を表すエレメンタリ・ストリーム差値を形成する処理と
を具えるデータ・ストリームの遅延変動測定方法。 - 任意のビデオ規格によるデジタル・オーディオビジアル・データ・ストリーム内の少なくとも第1及び第2エレメンタリ・ストリームの間の遅延変動を測定する装置であって、
上記第1及び第2エレメンタリ・ストリームを含むトランスポート又はプログラムのストリーム内のデジタル・オーディオビジアル・データ・ストリーム・タイムスタンプを検出するデジタル・オーディオビジアル・データ・ストリーム・タイムスタンプ検出回路と、
上記第1及び第2エレメンタリ・ストリームを含むトランスポート・ストリーム内のエレメンタリ・ストリーム・タイムスタンプを検出するエレメンタリ・ストリーム・タイムスタンプ検出回路と、
処理ロジック手段とを具え、
該処理ロジック手段が、
デジタル・オーディオビジアル・データ・ストリーム・タイムスタンプ値を検出して蓄積する手段と、
上記第1及び第2エレメンタリ・ストリーム用のエレメンタリ・ストリーム・タイムスタンプ値を検出して蓄積する手段と、
上記第1及び第2エレメンタリ・ストリーム・タイムスタンプ値よりも高いレートで転送される上記デジタル・オーディオビジアル・データ・ストリーム・タイムスタンプ値と共に上記第1及び第2エレメンタリ・ストリーム・タイムスタンプ値をそれぞれ補間して、共通のサンプリング・ポイントを有する補間データ・セットを形成する手段と、
上記第2エレメンタリ・データ・ストリームの上記補間データ・セットから上記第1エレメンタリ・データ・ストリームの上記補間データ・セットを減算して、上記第1及び第2エレメンタリ・ストリームの間の時間経過に伴う遅延の変化を表すエレメンタリ・ストリーム差値を形成する手段と
を有することを特徴とするデータ・ストリームの遅延変動測定装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09174903.6 | 2009-11-03 | ||
EP09174903A EP2323392B1 (en) | 2009-11-03 | 2009-11-03 | Method and apparatus for measuring delay within a compressed digital stream |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011101360A JP2011101360A (ja) | 2011-05-19 |
JP5720051B2 true JP5720051B2 (ja) | 2015-05-20 |
Family
ID=42026107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010242689A Expired - Fee Related JP5720051B2 (ja) | 2009-11-03 | 2010-10-28 | デジタル・ストリーム内の遅延変動測定方法及び装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8520143B2 (ja) |
EP (1) | EP2323392B1 (ja) |
JP (1) | JP5720051B2 (ja) |
CN (1) | CN102075794B (ja) |
AT (1) | ATE540529T1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20110117033A (ko) * | 2010-04-20 | 2011-10-26 | 삼성전자주식회사 | 미디어 데이터를 송수신하기 위한 인터페이스 장치 및 방법 |
EP2498494A1 (en) * | 2011-03-11 | 2012-09-12 | Thomson Licensing | Decoder and method at the decoder for synchronizing the rendering of contents received through different networks |
WO2013025032A1 (ko) | 2011-08-12 | 2013-02-21 | 삼성전자 주식회사 | 수신 장치 및 그 수신 방법 |
US10298931B2 (en) * | 2014-09-25 | 2019-05-21 | Microsoft Technology Licensing, Llc | Coupling sample metadata with media samples |
CN104349163B (zh) * | 2014-11-26 | 2016-06-08 | 电子科技大学 | 端到端视频传输延迟测量显示装置及测量系统 |
US10887644B2 (en) * | 2015-09-01 | 2021-01-05 | Sony Corporation | Reception device, data processing method, and program |
JP6596363B2 (ja) * | 2016-03-08 | 2019-10-23 | 日本放送協会 | 時刻マッピング情報生成装置、同期再生システム、時刻マッピング情報生成方法及び時刻マッピング情報生成プログラム |
US10887432B2 (en) * | 2019-05-20 | 2021-01-05 | Google Llc | Trip time estimation for transport control protocol |
US10833702B1 (en) | 2019-09-19 | 2020-11-10 | International Business Machines Corporation | Interpolation search to find arbitrary offsets in a compressed stream |
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GB9822087D0 (en) * | 1998-10-09 | 1998-12-02 | Snell & Wilcox Ltd | Improvements in data compression |
GB9930788D0 (en) * | 1999-12-30 | 2000-02-16 | Koninkl Philips Electronics Nv | Method and apparatus for converting data streams |
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US7088911B2 (en) * | 2000-04-26 | 2006-08-08 | Sony Corporation | Recording apparatus and method, playback apparatus and method, and recording medium therefor |
CZ20031749A3 (cs) * | 2001-01-16 | 2004-01-14 | Matsushita Electric Industrial Co., Ltd. | Médium pro záznam dat, zařízení pro záznam dat a způsob záznamu dat |
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-
2009
- 2009-11-03 AT AT09174903T patent/ATE540529T1/de active
- 2009-11-03 EP EP09174903A patent/EP2323392B1/en not_active Not-in-force
-
2010
- 2010-10-27 US US12/913,322 patent/US8520143B2/en not_active Expired - Fee Related
- 2010-10-28 JP JP2010242689A patent/JP5720051B2/ja not_active Expired - Fee Related
- 2010-11-03 CN CN201010543453.0A patent/CN102075794B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US8520143B2 (en) | 2013-08-27 |
US20110169966A1 (en) | 2011-07-14 |
ATE540529T1 (de) | 2012-01-15 |
CN102075794A (zh) | 2011-05-25 |
EP2323392A1 (en) | 2011-05-18 |
EP2323392B1 (en) | 2012-01-04 |
JP2011101360A (ja) | 2011-05-19 |
CN102075794B (zh) | 2016-02-03 |
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