EP2165273A1 - Verfahren und vorrichtung zum codieren und decodieren von multimediadaten - Google Patents
Verfahren und vorrichtung zum codieren und decodieren von multimediadatenInfo
- Publication number
- EP2165273A1 EP2165273A1 EP08760648A EP08760648A EP2165273A1 EP 2165273 A1 EP2165273 A1 EP 2165273A1 EP 08760648 A EP08760648 A EP 08760648A EP 08760648 A EP08760648 A EP 08760648A EP 2165273 A1 EP2165273 A1 EP 2165273A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frn
- fragment
- fragments
- identifier
- mdd
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000012634 fragment Substances 0.000 claims abstract description 163
- 208000032988 autosomal dominant 38 intellectual disability Diseases 0.000 claims description 9
- 201000000329 autosomal dominant non-syndromic intellectual disability 38 Diseases 0.000 claims description 9
- 230000002123 temporal effect Effects 0.000 claims description 5
- 230000001419 dependent effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/40—Information retrieval; Database structures therefor; File system structures therefor of multimedia data, e.g. slideshows comprising image and additional audio data
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N11/00—Colour television systems
- H04N11/02—Colour television systems with bandwidth reduction
Definitions
- the invention relates to a method and a device for encoding multimedia data.
- the invention further relates to a method and an apparatus for decoding multimedia data.
- a large amount of multimedia data for example, in the video surveillance.
- video and / or audio data are frequently continuously recorded by one or more cameras, which are usually stored in a plurality of individual files.
- the files are limited in size. For example, a file contains video data between 5 and 15 minutes in length.
- a large number of files must be administered, e.g. be recorded over a period of 24 hours data. This is usually done by a systematic naming of the individual files and / or a hierarchical arrangement of the files over time. The administration of these many individual files requires a lot of effort, whereby a targeted access to certain parts of the recorded files is difficult.
- a data aggregate comprising the multimedia data is formed from a number of mutually independent fragments.
- Each of the number of fragments is assigned a respective unique identifier for identifying the respective fragment, the identifier being stored in a respective metadata structure associated with the fragment.
- the identifiers of a first, in particular temporally previous, and / or a second, in particular temporally subsequent, fragment are stored in a respective metadata structure.
- the apparatus further comprises second means for generating and assigning a unique identifier to each of the plurality of fragments for identifying a respective fragment, wherein the identifier is stored in a respective metadata structure associated with the fragment.
- the device comprises a third means for storing the identifiers of a first, in particular temporally previous, and / or a second, in particular temporally subsequent, fragment in the respective metadata structure.
- the identifiers of the fragment contained in the metadata of a fragment of the data aggregate of the first, in particular temporally previous, fragment and / or the second, in particular temporally subsequent, fragment is read out and processed in order to establish a, in particular temporal, relationship between a plurality of the fragments of the data aggregate.
- the invention provides a format for multimedia data which enables the subdivision of the data population into individual fragments in a simple manner.
- the format is particularly suitable for use in surveillance applications where large amounts of audio and / or video data are required.
- unique identifiers which are each assigned to a fragment, and the additional storage of the respective identifiers of a particular temporally preceding and temporally subsequent fragment, a connection can be established between the individual fragments.
- the invention enables the individual fragments of standard software applications to be read and used.
- the invention makes it possible to form ring buffer structures for the efficient use of an available memory space.
- the effort to manage a plurality of mutually independent fragments is facilitated, since the information required for the administration is stored in the metadata structure of a respective fragment and can be processed by the corresponding applications.
- time-related parameters of this fragment are provided in a respective metadata structure of a fragment.
- the time-related parameters may include, for example, the start time and the duration of the fragment, ie the duration of the multimedia data contained in the fragment. tenstroms.
- the time-related parameter can also be formed, for example, by a time stamp.
- parameters pertaining to the coding of the multimedia data of this fragment are provided in a respective metadata structure of a fragment. This information can be used by the application processing the data fragment so that the multimedia data contained in the fragment can be optimized for output.
- a further expedient embodiment provides that a link to a storage location of the first and / or the second fragment in the relevant metadata structure is provided in a respective metadata structure of a fragment.
- the link may, according to another embodiment, represent a URI (Uniform Resource Identifier) of the first and / or the second fragment.
- URI Uniform Resource Identifier
- the number of fragments of the data aggregate can in principle be chosen as desired, and the data aggregate can also comprise only a single fragment.
- the number of fragments of the data population is accordingly at least one.
- the identifier for the previous fragment of the own identifier is provided in the metadata structure of the fragment, which has no temporally previous fragment.
- the identifier for the subsequent fragment of the own identifier is provided in the metadata structure of the fragment, which has no temporally subsequent fragment.
- An identifier and / or a timestamp and / or a Universally Unique Identifier can be used as the identifier.
- UUID Universally Unique Identifier
- the identifiers are assigned in a known sequence, in particular in an order.
- the identification content of respective metadata structures can be further increased.
- the number of fragments between two selected fragments can be seen. This is particularly simple if the identifiers are consecutive identifiers. It is also possible if the order of the assigned identifiers is known.
- fragments of equal length All fragments should have the same number of tracks and the same parameters regarding their timing and encoding settings. Accordingly, it can be provided to generate fragments of the same coding, in particular the same data rate and / or the same codecs. With these refinements, the security of a correctly created data aggregate can be increased since, for example, lost fragments can be detected.
- the metadata structure assigned to a fragment can, in principle, be stored and stored independently of the fragment. However, it is preferred if a respective metadata structure is stored in the associated fragment. According to one embodiment of the method for decoding the multimedia data, each of the fragments of the data aggregate is decodable and executable independently of other fragments of the data aggregate.
- the invention will be described below with reference to an embodiment with reference to the single figure.
- the single figure schematically shows a set of fragments FRn-1, FRn, FRn + 1 of a data set F.
- Each of the three exemplified fragments FRn-I, FRn, FRn + 1 comprises multimedia data MM and a metadata structure MDD.
- Each of the metadata structures MDD of a respective fragment FRn-1, FRn, FRn + 1 comprises an identifier ID which allows unambiguous identification of the relevant fragment.
- Identifier ID a UUID (Universally Unique Identifier) is preferably used.
- the identifier could also be identified by a unique name and / or a timestamp, e.g. the time at which the relevant fragment FRn-I, FRn, FRn + 1 was created.
- each metadata structure MDD of a respective fragment FRn-1, FRn, FRn + 1 comprises a number of attributes which facilitates the administration of the number of fragments FRn-1, FRn, FRn + 1 and a targeted access to the respective multimedia data MM of one or more relieved several of the fragments.
- an indicator of a first temporally preceding fragment as well as an indicator of a second, temporally subsequent fragment in the metadata structure MDD are provided as attributes.
- the indicator of the previous fragment is labeled PrelD
- the indicator of the subsequent fragment is SucID.
- the identifiers of the preceding and subsequent fragments PrelD, SucID correspond to the type ID of the relevant fragment.
- fragment FRn-I is the previous fragment to fragment FRn. Accordingly, the identifiers in the attribute fields ID of FRn-I and PrelD of FRn match.
- the subsequent fragment to the fragment FRn is the fragment FRn + 1. For this reason, the content of the identifier ID of FRn + 1 coincides with the identifier in the field SucID of FRn.
- the fragment FRn is the previous fragment to the fragment FRn + 1. Accordingly, in the attribute field PrelD of the fragment FRn + 1, the identifier ID of the fragment FRn is entered. Finally, the fragment FRn represents the subsequent fragment to the fragment FRn-I. Therefore, in the attribute field SucID of FRn-I, the identifier ID of the fragment FRn is entered.
- each metadata structure MDD includes a start time ST and the duration D (for example in minutes) of the data stream contained in the multimedia data MM.
- the fragment FRn-I has the value 11:55 and the duration D 5 as the start time ST.
- the start time ST of the fragment FRn is 12:00, the duration D is 5.
- the start time ST of the fragment FRn + 1 is 12:05 and the duration D is 5. From this example it follows that in the fragments FRn-1 , FRn, FRn + 1 contains a continuous stream of multimedia data containing data from 11:55 to 12:10.
- the durations D of respective fragments are the same. Nevertheless, a variant is also possible in which the durations D of respective fragments FRn-1, FRn, FRn + 1 have different durations.
- a respective metadata structure MD can have a link to a storage location of the previous or subsequent fragment.
- the link can be formed for example by a URI (Uniform Resource Identifier).
- a respective metadata structure in a fragment of a data aggregate F enables the individual fragments to be linked to one another since the subsequent fragment can be found from the metadata of a respective fragment at any time, so that a continuous output of the multimedia data stream contained in the respective fragments is possible is. This works in both directions (forward and backward). In the event that a fragment has no previous and / or no subsequent fragment, this can be signaled by the fact that the relevant identifier of the attribute field refers to the relevant fragment itself.
- the information content of the data or attributes contained in a respective metadata structure MDD can be increased by systematically creating the identifiers.
- the identifiers ID of the fragments FRn-I, FRn, FRn + 1 can be assigned in a known sequence, in particular an order. This allows e.g. the detection of the number of fragments that lie between selected fragments. This makes it easy to determine whether individual fragments have possibly been lost.
- the described data format allows the use of ring buffer structures to efficiently utilize an existing memory space while reducing the overhead of administrating the number of fragments of the data population.
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Databases & Information Systems (AREA)
- Data Mining & Analysis (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Human Computer Interaction (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Health & Medical Sciences (AREA)
- Computational Linguistics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Television Signal Processing For Recording (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007029599 | 2007-06-27 | ||
DE102007045741A DE102007045741A1 (de) | 2007-06-27 | 2007-09-25 | Verfahren und Vorrichtung zum Codieren und Decodieren von Multimediadaten |
PCT/EP2008/057075 WO2009000631A1 (de) | 2007-06-27 | 2008-06-06 | Verfahren und vorrichtung zum codieren und decodieren von multimediadaten |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2165273A1 true EP2165273A1 (de) | 2010-03-24 |
Family
ID=40092640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08760648A Withdrawn EP2165273A1 (de) | 2007-06-27 | 2008-06-06 | Verfahren und vorrichtung zum codieren und decodieren von multimediadaten |
Country Status (7)
Country | Link |
---|---|
US (1) | US20100296584A1 (de) |
EP (1) | EP2165273A1 (de) |
JP (1) | JP5936303B2 (de) |
KR (2) | KR20100042629A (de) |
CN (2) | CN105808755A (de) |
DE (1) | DE102007045741A1 (de) |
WO (1) | WO2009000631A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8751677B2 (en) * | 2009-10-08 | 2014-06-10 | Futurewei Technologies, Inc. | System and method to support different ingest and delivery schemes for a content delivery network |
US20120137377A1 (en) * | 2010-11-30 | 2012-05-31 | ZOO Digital Limited, a Limited Company | Method and system for safeguarding digital objects consisting of digital assets |
KR20120138604A (ko) | 2011-06-14 | 2012-12-26 | 삼성전자주식회사 | 멀티미디어 시스템에서 복합 미디어 컨텐츠를 송수신하는 방법 및 장치 |
US10681096B2 (en) | 2011-08-18 | 2020-06-09 | Comcast Cable Communications, Llc | Multicasting content |
US9325756B2 (en) * | 2011-12-29 | 2016-04-26 | Comcast Cable Communications, Llc | Transmission of content fragments |
CN104781807B (zh) * | 2013-10-21 | 2018-11-09 | 华为技术有限公司 | 流媒体资源的管理方法、服务器及客户端 |
WO2016021153A1 (ja) * | 2014-08-06 | 2016-02-11 | パナソニックIpマネジメント株式会社 | 送信方法、受信方法、送信装置及び受信装置 |
CN109166570B (zh) * | 2018-07-24 | 2019-11-26 | 百度在线网络技术(北京)有限公司 | 一种语音切分的方法、装置、设备和计算机存储介质 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000259459A (ja) * | 1999-03-08 | 2000-09-22 | Matsushita Electric Ind Co Ltd | ファイル記憶媒体、ファイル管理装置、ファイル管理プログラム記憶媒体 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5168356A (en) * | 1991-02-27 | 1992-12-01 | General Electric Company | Apparatus for segmenting encoded video signal for transmission |
US5574905A (en) * | 1994-05-26 | 1996-11-12 | International Business Machines Corporation | Method and apparatus for multimedia editing and data recovery |
CN1155952A (zh) * | 1994-06-21 | 1997-07-30 | 史蒂文·布雷德福·格林 | 用以收集关于所接收的发送物之数据的装置 |
GB9424429D0 (en) * | 1994-12-02 | 1995-01-18 | Philips Electronics Uk Ltd | Audio/video timing discrepancy management |
AU4688996A (en) * | 1994-12-22 | 1996-07-10 | Bell Atlantic Network Services, Inc. | Authoring tools for multimedia application development and network delivery |
JP2002027389A (ja) * | 2000-07-07 | 2002-01-25 | Matsushita Electric Ind Co Ltd | 画像記録装置、画像再生装置および画像記録再生装置 |
US7075990B2 (en) * | 2001-08-28 | 2006-07-11 | Sbc Properties, L.P. | Method and system to improve the transport of compressed video data in real time |
JP4099973B2 (ja) * | 2001-10-30 | 2008-06-11 | 松下電器産業株式会社 | 映像データ送信方法及び映像データ受信方法、並びに映像監視システム |
JP2003235008A (ja) * | 2002-02-08 | 2003-08-22 | Sony Corp | 画像データ処理装置および方法、記録媒体、並びにプログラム |
KR20040106414A (ko) * | 2002-04-29 | 2004-12-17 | 소니 일렉트로닉스 인코포레이티드 | 미디어 파일에서 진보된 코딩 포맷의 지원 |
JP4294933B2 (ja) * | 2002-10-16 | 2009-07-15 | 富士通株式会社 | マルチメディアコンテンツ編集装置およびマルチメディアコンテンツ再生装置 |
US7434165B2 (en) * | 2002-12-12 | 2008-10-07 | Lawrence Charles Kleinman | Programmed apparatus and system of dynamic display of presentation files |
EP1588548B1 (de) * | 2003-01-28 | 2010-10-13 | Thomson Licensing | Staggercasting im robusten modus |
US7526718B2 (en) * | 2003-04-30 | 2009-04-28 | Hewlett-Packard Development Company, L.P. | Apparatus and method for recording “path-enhanced” multimedia |
JP4481889B2 (ja) * | 2005-06-28 | 2010-06-16 | キヤノン株式会社 | データ記録装置及びその方法、プログラム、記録媒体 |
JP4970912B2 (ja) * | 2006-11-29 | 2012-07-11 | 富士フイルム株式会社 | 動画分割サーバおよびその制御方法 |
-
2007
- 2007-09-25 DE DE102007045741A patent/DE102007045741A1/de not_active Ceased
-
2008
- 2008-06-06 KR KR1020107001704A patent/KR20100042629A/ko not_active Application Discontinuation
- 2008-06-06 JP JP2010513827A patent/JP5936303B2/ja not_active Expired - Fee Related
- 2008-06-06 CN CN201610145215.1A patent/CN105808755A/zh active Pending
- 2008-06-06 KR KR1020157006876A patent/KR20150038692A/ko active Search and Examination
- 2008-06-06 EP EP08760648A patent/EP2165273A1/de not_active Withdrawn
- 2008-06-06 WO PCT/EP2008/057075 patent/WO2009000631A1/de active Application Filing
- 2008-06-06 CN CN200880104349A patent/CN101785006A/zh active Pending
- 2008-06-06 US US12/452,350 patent/US20100296584A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000259459A (ja) * | 1999-03-08 | 2000-09-22 | Matsushita Electric Ind Co Ltd | ファイル記憶媒体、ファイル管理装置、ファイル管理プログラム記憶媒体 |
Also Published As
Publication number | Publication date |
---|---|
DE102007045741A1 (de) | 2009-01-08 |
WO2009000631A1 (de) | 2008-12-31 |
KR20100042629A (ko) | 2010-04-26 |
JP5936303B2 (ja) | 2016-06-22 |
US20100296584A1 (en) | 2010-11-25 |
CN105808755A (zh) | 2016-07-27 |
CN101785006A (zh) | 2010-07-21 |
JP2010532608A (ja) | 2010-10-07 |
KR20150038692A (ko) | 2015-04-08 |
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