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GB2564644B - Method and system of encoding a data stream according to a variable bitrate mode - Google Patents

Method and system of encoding a data stream according to a variable bitrate mode Download PDF

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Publication number
GB2564644B
GB2564644B GB1711194.9A GB201711194A GB2564644B GB 2564644 B GB2564644 B GB 2564644B GB 201711194 A GB201711194 A GB 201711194A GB 2564644 B GB2564644 B GB 2564644B
Authority
GB
United Kingdom
Prior art keywords
encoding
data stream
stream according
variable bitrate
bitrate mode
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.)
Expired - Fee Related
Application number
GB1711194.9A
Other versions
GB2564644A (en
GB201711194D0 (en
Inventor
Visa Pierre
Sevin Julien
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon 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
Application filed by Canon Inc filed Critical Canon Inc
Priority to GB1711194.9A priority Critical patent/GB2564644B/en
Publication of GB201711194D0 publication Critical patent/GB201711194D0/en
Publication of GB2564644A publication Critical patent/GB2564644A/en
Application granted granted Critical
Publication of GB2564644B publication Critical patent/GB2564644B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/115—Selection of the code volume for a coding unit prior to coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/162—User input
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/164—Feedback from the receiver or from the transmission channel
    • 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]
    • 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
    • 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
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/23805—Controlling the feeding rate to the network, e.g. by controlling the video pump
    • 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
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
GB1711194.9A 2017-07-12 2017-07-12 Method and system of encoding a data stream according to a variable bitrate mode Expired - Fee Related GB2564644B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1711194.9A GB2564644B (en) 2017-07-12 2017-07-12 Method and system of encoding a data stream according to a variable bitrate mode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1711194.9A GB2564644B (en) 2017-07-12 2017-07-12 Method and system of encoding a data stream according to a variable bitrate mode

Publications (3)

Publication Number Publication Date
GB201711194D0 GB201711194D0 (en) 2017-08-23
GB2564644A GB2564644A (en) 2019-01-23
GB2564644B true GB2564644B (en) 2020-12-16

Family

ID=59676722

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1711194.9A Expired - Fee Related GB2564644B (en) 2017-07-12 2017-07-12 Method and system of encoding a data stream according to a variable bitrate mode

Country Status (1)

Country Link
GB (1) GB2564644B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995028684A1 (en) * 1994-04-14 1995-10-26 Motorola Inc. Device, method and system for variable bit-rate packet video communications
WO1996028896A1 (en) * 1995-03-15 1996-09-19 The Chinese University Of Hong Kong Method for compression of loss-tolerant data
EP1091588A1 (en) * 1999-04-23 2001-04-11 Sony Corporation Image encoder and its method
WO2006099086A1 (en) * 2005-03-10 2006-09-21 Qualcomm Incorporated Context-adaptive bandwidth adjustment in video rate control
EP2262304A1 (en) * 2004-05-13 2010-12-15 Qualcomm Incorporated Delivery of information over a communication channel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995028684A1 (en) * 1994-04-14 1995-10-26 Motorola Inc. Device, method and system for variable bit-rate packet video communications
WO1996028896A1 (en) * 1995-03-15 1996-09-19 The Chinese University Of Hong Kong Method for compression of loss-tolerant data
EP1091588A1 (en) * 1999-04-23 2001-04-11 Sony Corporation Image encoder and its method
EP2262304A1 (en) * 2004-05-13 2010-12-15 Qualcomm Incorporated Delivery of information over a communication channel
WO2006099086A1 (en) * 2005-03-10 2006-09-21 Qualcomm Incorporated Context-adaptive bandwidth adjustment in video rate control

Also Published As

Publication number Publication date
GB2564644A (en) 2019-01-23
GB201711194D0 (en) 2017-08-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20210712