WO2005020558A3 - Method and system for re-multiplexing of content-modified mpeg-2 transport streams using interpolation of packet arrival times - Google Patents

Method and system for re-multiplexing of content-modified mpeg-2 transport streams using interpolation of packet arrival times Download PDF

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Publication number
WO2005020558A3
WO2005020558A3 PCT/US2004/026124 US2004026124W WO2005020558A3 WO 2005020558 A3 WO2005020558 A3 WO 2005020558A3 US 2004026124 W US2004026124 W US 2004026124W WO 2005020558 A3 WO2005020558 A3 WO 2005020558A3
Authority
WO
WIPO (PCT)
Prior art keywords
arrival times
modified
content
multiplexing
interpolation
Prior art date
Application number
PCT/US2004/026124
Other languages
French (fr)
Other versions
WO2005020558A2 (en
Inventor
Jeyendran Balakrishnan
Hemant Malhotra
Original Assignee
Skystream Networks Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US10/640,866 external-priority patent/US7227899B2/en
Priority claimed from US10/641,322 external-priority patent/US7274742B2/en
Priority claimed from US10/640,872 external-priority patent/US7342968B2/en
Priority claimed from US10/640,871 external-priority patent/US7693222B2/en
Priority claimed from US10/641,323 external-priority patent/US20050036557A1/en
Application filed by Skystream Networks Inc filed Critical Skystream Networks Inc
Priority to CA002535455A priority Critical patent/CA2535455A1/en
Publication of WO2005020558A2 publication Critical patent/WO2005020558A2/en
Publication of WO2005020558A3 publication Critical patent/WO2005020558A3/en

Links

Classifications

    • 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
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2365—Multiplexing of several video streams
    • H04N21/23655—Statistical multiplexing, e.g. by controlling the encoder to alter its bitrate to optimize the bandwidth utilization
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • 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
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2368—Multiplexing of audio and video streams
    • 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]

Abstract

A system and method is provided for revising the time stamp information in an MPEG-2 encoded data transport stream after content in the transport stream is modified. Incoming packets are stamped with arrival times and packet sequence counts (210). Synchronization points within the elementary stream are identified and arrival times of those synchronization points are calculated. After elementary streams are modified, commensurate arrival times are calculated based on arrival times and packet sequence counts of incoming packet, as well as the arrival times of the identified synchronization points within the elementary stream and the bit ratio between the incoming packets and the modified outgoing packets (240). Calculated arrival times are stamped on the outgoing packets and used to time the output of the outgoing stream (240).
PCT/US2004/026124 2003-08-13 2004-08-12 Method and system for re-multiplexing of content-modified mpeg-2 transport streams using interpolation of packet arrival times WO2005020558A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002535455A CA2535455A1 (en) 2003-08-13 2004-08-12 Method and system for re-multiplexing of content-modified mpeg-2 transport streams using interpolation of packet arrival times

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
US10/640,866 US7227899B2 (en) 2003-08-13 2003-08-13 Method and system for re-multiplexing of content-modified MPEG-2 transport streams using interpolation of packet arrival times
US10/641,322 US7274742B2 (en) 2003-08-13 2003-08-13 Model and model update technique in a system for modeling the relationship of the bit rate of a transport stream and the bit rate of an elementary stream carried therein
US10/641,322 2003-08-13
US10/640,866 2003-08-13
US10/640,872 2003-08-13
US10/641,323 2003-08-13
US10/640,872 US7342968B2 (en) 2003-08-13 2003-08-13 Method and system for modeling the relationship of the bit rate of a transport stream and the bit rate of an elementary stream carried therein
US10/640,871 US7693222B2 (en) 2003-08-13 2003-08-13 Method and system for re-multiplexing of content-modified MPEG-2 transport streams using PCR interpolation
US10/640,871 2003-08-13
US10/641,323 US20050036557A1 (en) 2003-08-13 2003-08-13 Method and system for time synchronized forwarding of ancillary information in stream processed MPEG-2 systems streams

Publications (2)

Publication Number Publication Date
WO2005020558A2 WO2005020558A2 (en) 2005-03-03
WO2005020558A3 true WO2005020558A3 (en) 2006-02-16

Family

ID=34222664

Family Applications (4)

Application Number Title Priority Date Filing Date
PCT/US2004/026082 WO2005020557A2 (en) 2003-08-13 2004-08-12 Method and system for modeling the relationship of the bit of a transport stream and the bit rate of an elementary stream carried therein
PCT/US2004/026164 WO2005019999A2 (en) 2003-08-13 2004-08-12 Method and system for re-multiplexing of content-modified mpeg-2 transport streams using pcr interpolation
PCT/US2004/026125 WO2005020559A2 (en) 2003-08-13 2004-08-12 Method and system for time synchronized forwarding of ancillary information in stream processed mpeg-2 systems streams
PCT/US2004/026124 WO2005020558A2 (en) 2003-08-13 2004-08-12 Method and system for re-multiplexing of content-modified mpeg-2 transport streams using interpolation of packet arrival times

Family Applications Before (3)

Application Number Title Priority Date Filing Date
PCT/US2004/026082 WO2005020557A2 (en) 2003-08-13 2004-08-12 Method and system for modeling the relationship of the bit of a transport stream and the bit rate of an elementary stream carried therein
PCT/US2004/026164 WO2005019999A2 (en) 2003-08-13 2004-08-12 Method and system for re-multiplexing of content-modified mpeg-2 transport streams using pcr interpolation
PCT/US2004/026125 WO2005020559A2 (en) 2003-08-13 2004-08-12 Method and system for time synchronized forwarding of ancillary information in stream processed mpeg-2 systems streams

Country Status (2)

Country Link
CA (4) CA2535457C (en)
WO (4) WO2005020557A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100391249C (en) * 2005-09-28 2008-05-28 西安通视数据有限责任公司 Digital video frequency broadcasting switching method and apparatus thereof

Citations (8)

* Cited by examiner, † Cited by third party
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US5537408A (en) * 1995-02-03 1996-07-16 International Business Machines Corporation apparatus and method for segmentation and time synchronization of the transmission of multimedia data
US5566174A (en) * 1994-04-08 1996-10-15 Philips Electronics North America Corporation MPEG information signal conversion system
US5596581A (en) * 1994-04-08 1997-01-21 Philips Electronics North America Corporation Recording and reproducing an MPEG information signal using tagged timing information
US5703877A (en) * 1995-11-22 1997-12-30 General Instrument Corporation Of Delaware Acquisition and error recovery of audio data carried in a packetized data stream
US5835668A (en) * 1994-11-14 1998-11-10 Sony Corporation Transmission, recording and reproduction of digital data and time information in transport packets using a compression ratio
US6002687A (en) * 1996-01-02 1999-12-14 Divicon, Inc. MPEG transport stream remultiplexer
US20030002587A1 (en) * 2000-05-31 2003-01-02 Next Level Communications, Inc. Method for dealing with missing or untimely synchronization signals in digital communications systems
US20030043924A1 (en) * 2001-08-31 2003-03-06 Haddad Semir S. Apparatus and method for synchronizing video and audio MPEG streams in a video playback device

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Publication number Priority date Publication date Assignee Title
JPH09139937A (en) * 1995-11-14 1997-05-27 Fujitsu Ltd Moving image stream converter
US5793425A (en) * 1996-09-13 1998-08-11 Philips Electronics North America Corporation Method and apparatus for dynamically controlling encoding parameters of multiple encoders in a multiplexed system
US6167084A (en) * 1998-08-27 2000-12-26 Motorola, Inc. Dynamic bit allocation for statistical multiplexing of compressed and uncompressed digital video signals
US6330286B1 (en) * 1999-06-09 2001-12-11 Sarnoff Corporation Flow control, latency control, and bitrate conversions in a timing correction and frame synchronization apparatus
US7088725B1 (en) * 1999-06-30 2006-08-08 Sony Corporation Method and apparatus for transcoding, and medium
JP2001251616A (en) * 2000-03-02 2001-09-14 Media Glue Corp Method and device for converting multiplexed sound/ moving picture compressing-coded signal, and medium recorded with conversion program
US6868125B2 (en) * 2001-11-29 2005-03-15 Thomson Licensing S.A. Transport stream to program stream conversion

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5566174A (en) * 1994-04-08 1996-10-15 Philips Electronics North America Corporation MPEG information signal conversion system
US5596581A (en) * 1994-04-08 1997-01-21 Philips Electronics North America Corporation Recording and reproducing an MPEG information signal using tagged timing information
US5835668A (en) * 1994-11-14 1998-11-10 Sony Corporation Transmission, recording and reproduction of digital data and time information in transport packets using a compression ratio
US5537408A (en) * 1995-02-03 1996-07-16 International Business Machines Corporation apparatus and method for segmentation and time synchronization of the transmission of multimedia data
US5703877A (en) * 1995-11-22 1997-12-30 General Instrument Corporation Of Delaware Acquisition and error recovery of audio data carried in a packetized data stream
US6002687A (en) * 1996-01-02 1999-12-14 Divicon, Inc. MPEG transport stream remultiplexer
US20030002587A1 (en) * 2000-05-31 2003-01-02 Next Level Communications, Inc. Method for dealing with missing or untimely synchronization signals in digital communications systems
US20030043924A1 (en) * 2001-08-31 2003-03-06 Haddad Semir S. Apparatus and method for synchronizing video and audio MPEG streams in a video playback device

Also Published As

Publication number Publication date
WO2005019999A2 (en) 2005-03-03
CA2535453C (en) 2014-04-15
WO2005019999A3 (en) 2008-11-06
WO2005020557A3 (en) 2008-11-13
CA2535457C (en) 2013-04-23
CA2535457A1 (en) 2005-03-03
CA2535306A1 (en) 2005-03-03
CA2535453A1 (en) 2005-03-03
WO2005020559A3 (en) 2007-01-25
CA2535455A1 (en) 2005-03-03
WO2005020559A2 (en) 2005-03-03
WO2005020558A2 (en) 2005-03-03
WO2005020557A2 (en) 2005-03-03

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