CN108540823A - A kind of integrity of video method of calibration based on block chain technology - Google Patents

A kind of integrity of video method of calibration based on block chain technology Download PDF

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Publication number
CN108540823A
CN108540823A CN201810461765.3A CN201810461765A CN108540823A CN 108540823 A CN108540823 A CN 108540823A CN 201810461765 A CN201810461765 A CN 201810461765A CN 108540823 A CN108540823 A CN 108540823A
Authority
CN
China
Prior art keywords
video
block chain
integrity
chain technology
key frame
Prior art date
Application number
CN201810461765.3A
Other languages
Chinese (zh)
Inventor
杨星
李鹏
Original Assignee
北京首汽智行科技有限公司
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 北京首汽智行科技有限公司 filed Critical 北京首汽智行科技有限公司
Priority to CN201810461765.3A priority Critical patent/CN108540823A/en
Publication of CN108540823A publication Critical patent/CN108540823A/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/23418Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
    • H04N21/44Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/44008Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream

Abstract

The invention discloses a kind of integrity of video methods of calibration based on block chain technology, include the following steps, S1, server extract video file key frame;S2, the cryptographic Hash for calculating each key frame in video file generate block chain link point;S3, all key frames cryptographic Hash be stored in video file head;From server downloading video files, the cryptographic Hash that all key frames are transmitted before transmitting video files first frame is verified to user terminal for S4, user terminal, finds to retransmit when mistake.The present invention realizes key frame information cochain using block chain technology, can be traced before and after key frame information, quickly judges whether there is key frame missing to reach, video playing is avoided to go wrong.

Description

A kind of integrity of video method of calibration based on block chain technology

Technical field

The present invention relates to a kind of integrity of video methods of calibration, and in particular to a kind of video based on block chain technology is complete Property method of calibration, belongs to technical field of computer information processing.

Background technology

The problem of often will appear asynchronous audio and video and interim card in present video playing, most of situation is due to losing Frame causes or causes since video integrality itself is problematic.It now can only be by checking whether there are frame losing feelings in playing process Condition, user experience are very unfriendly.

Since key frame plays the role of very important in video playing, key frame is not lost, and can ensure video substantially The quality of broadcasting, if crucial frame loss, it is desirable to be able to find, and be retransmitted in time.

Therefore, a kind of integrity of video method of calibration based on block chain technology is developed, is realized and is closed using block chain technology Key frame cochain can trace before and after key frame information, quickly judge whether there is key frame missing to reach, video playing is avoided to go out Problem is very important, and the invention also has important application prospect.

Invention content

The present invention is directed to the drawbacks of prior art, discloses a kind of integrity of video verification side based on block chain technology Method is realized key frame cochain, can be traced before and after key frame information, quickly judges whether there is key frame missing to reach, avoids Video playing goes wrong.

In order to realize that above-mentioned target, the technical solution adopted in the present invention be:

A kind of integrity of video method of calibration based on block chain technology, includes the following steps,

S1, server extract video file key frame;

S2, the cryptographic Hash for calculating each key frame in video file generate block chain link point;

S3, all key frames cryptographic Hash be stored in video file head;

S4, user terminal transmit all key frames from server downloading video files before transmitting video files first frame Cryptographic Hash verified to user terminal, find mistake when retransmit.

Integrity of video method of calibration above-mentioned based on block chain technology, in the step S2, using SHA256 algorithms Generate the cryptographic Hash of video file key frame.

Integrity of video method of calibration above-mentioned based on block chain technology, in the step S3, using generating merkle The mode of tree stores the cryptographic Hash of all key frames.

Integrity of video method of calibration above-mentioned based on block chain technology, in the step S4, user terminal is from server When downloading video files, video file fragmentation transmission carries out crucial frame check in process of caching.

Integrity of video method of calibration above-mentioned based on block chain technology, in the step S4, user terminal carries out crucial When frame check finds erroneous retransmissions, while server being notified to carry out video verification.

Compared with prior art, the invention has the beneficial effects that:

(1) it utilizes block chain technology to realize key frame information cochain, can be traced before and after key frame information, it is quick to reach Key frame missing is judged whether there is, video playing is avoided to go wrong.

Description of the drawings

Fig. 1 is the flow of a specific embodiment of the integrity of video method of calibration based on block chain technology of the present invention Figure;

Fig. 2 is the key that a specific embodiment of the integrity of video method of calibration based on block chain technology in Fig. 1 Frame cryptographic Hash storage mode schematic diagram;

Fig. 3 is the user of a specific embodiment of the integrity of video method of calibration based on block chain technology in Fig. 1 Process for using figure.

Specific implementation mode

Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.

Referring to Fig.1, the integrity of video method of calibration of the invention based on block chain technology,

Include the following steps,

S1, server extract video file key frame;

S2, the cryptographic Hash for calculating each key frame in video file generate block chain link point;Video is uploading to service After device, the cryptographic Hash for acquiring key frame is needed before being supplied to user;

S3, all key frames cryptographic Hash be stored in video file head;

S4, user terminal transmit all key frames from server downloading video files before transmitting video files first frame Cryptographic Hash verified to user terminal, find mistake when retransmit.Before video file is sent to user, head is first sent to user It is verified, when user starts program request, the TS streams received are required for carrying out crucial frame check, find mistake weight in time It passes.

As a preferred solution, in step S2, the cryptographic Hash of video file key frame is generated using SHA256 algorithms.

As a preferred solution, in step S3, the Kazakhstan of all key frames is stored by the way of generating merkle trees Uncommon value.

As a preferred solution, in step S4, user terminal from server downloading video files when, video file fragmentation Transmission carries out crucial frame check in process of caching.

As a preferred solution, in step S4, when user terminal carries out crucial frame check discovery erroneous retransmissions, lead to simultaneously Know that server carries out video verification, determines whether piece source problem.

It should be noted that the foregoing is merely presently preferred embodiments of the present invention, it is not intended to limit the invention, it is all at this Within the spirit and principle of invention, any modification, equivalent replacement, improvement and so on should be included in the protection model of the present invention Within enclosing.

Claims (5)

1. a kind of integrity of video method of calibration based on block chain technology, which is characterized in that include the following steps,
S1, server extract video file key frame;
S2, the cryptographic Hash for calculating each key frame in video file generate block chain link point;
S3, all key frames cryptographic Hash be stored in video file head;
S4, user terminal transmit the Kazakhstan of all key frames from server downloading video files before transmitting video files first frame Uncommon value is verified to user terminal, finds to retransmit when mistake.
2. the integrity of video method of calibration according to claim 1 based on block chain technology, which is characterized in that the step In rapid S2, the cryptographic Hash of video file key frame is generated using SHA256 algorithms.
3. the integrity of video method of calibration according to claim 1 based on block chain technology, which is characterized in that the step In rapid S3, the cryptographic Hash of all key frames is stored by the way of generating merkle trees.
4. the integrity of video method of calibration according to claim 1 based on block chain technology, which is characterized in that the step In rapid S4, user terminal from server downloading video files when, video file fragmentation transmission carries out key frame school in process of caching It tests.
5. the integrity of video method of calibration according to claim 1 based on block chain technology, which is characterized in that the step In rapid S4, when user terminal carries out crucial frame check discovery erroneous retransmissions, while server being notified to carry out video verification.
CN201810461765.3A 2018-05-15 2018-05-15 A kind of integrity of video method of calibration based on block chain technology CN108540823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810461765.3A CN108540823A (en) 2018-05-15 2018-05-15 A kind of integrity of video method of calibration based on block chain technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810461765.3A CN108540823A (en) 2018-05-15 2018-05-15 A kind of integrity of video method of calibration based on block chain technology

Publications (1)

Publication Number Publication Date
CN108540823A true CN108540823A (en) 2018-09-14

Family

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Family Applications (1)

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CN201810461765.3A CN108540823A (en) 2018-05-15 2018-05-15 A kind of integrity of video method of calibration based on block chain technology

Country Status (1)

Country Link
CN (1) CN108540823A (en)

Citations (10)

* Cited by examiner, † Cited by third party
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CN101374234A (en) * 2008-09-25 2009-02-25 清华大学;北京蓝汛通信技术有限责任公司 Method and apparatus for monitoring video copy base on content
US20130232339A1 (en) * 2012-03-01 2013-09-05 Sergey Ignatchenko Systems, methods and apparatuses for the secure transmission of media content
CN104077590A (en) * 2014-06-30 2014-10-01 安科智慧城市技术(中国)有限公司 Video fingerprint extraction method and system
US20150245084A1 (en) * 2014-02-27 2015-08-27 Cinsay, Inc. Apparatus and method for gathering analytics
US20160344737A1 (en) * 2014-06-30 2016-11-24 CloudMode, LLC Uniqueness and auditing of a data resource through an immutable record of transactions in a hash history
CN106303715A (en) * 2016-08-25 2017-01-04 乐视控股(北京)有限公司 Bullet screen storage processing method and apparatus
CN106339880A (en) * 2016-08-23 2017-01-18 白大文 Product production method and system for users to trace and examine filling process easily
CN107395360A (en) * 2017-07-23 2017-11-24 刘志强 Digital cultural relic and artwork depository method based on blockchain technology
CN107580196A (en) * 2017-07-28 2018-01-12 国创科视科技股份有限公司 Video data sharing system and method
CN107948736A (en) * 2017-11-03 2018-04-20 法信公证云(厦门)科技有限公司 Audio and video evidence preservation method and system

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101374234A (en) * 2008-09-25 2009-02-25 清华大学;北京蓝汛通信技术有限责任公司 Method and apparatus for monitoring video copy base on content
US20130232339A1 (en) * 2012-03-01 2013-09-05 Sergey Ignatchenko Systems, methods and apparatuses for the secure transmission of media content
US20150245084A1 (en) * 2014-02-27 2015-08-27 Cinsay, Inc. Apparatus and method for gathering analytics
CN104077590A (en) * 2014-06-30 2014-10-01 安科智慧城市技术(中国)有限公司 Video fingerprint extraction method and system
US20160344737A1 (en) * 2014-06-30 2016-11-24 CloudMode, LLC Uniqueness and auditing of a data resource through an immutable record of transactions in a hash history
CN106339880A (en) * 2016-08-23 2017-01-18 白大文 Product production method and system for users to trace and examine filling process easily
CN106303715A (en) * 2016-08-25 2017-01-04 乐视控股(北京)有限公司 Bullet screen storage processing method and apparatus
CN107395360A (en) * 2017-07-23 2017-11-24 刘志强 Digital cultural relic and artwork depository method based on blockchain technology
CN107580196A (en) * 2017-07-28 2018-01-12 国创科视科技股份有限公司 Video data sharing system and method
CN107948736A (en) * 2017-11-03 2018-04-20 法信公证云(厦门)科技有限公司 Audio and video evidence preservation method and system

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