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 PDFInfo
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- 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
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- video
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- integrity
- chain technology
- key frame
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000012795 verification Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000013467 fragmentation Methods 0.000 claims description 3
- 238000006062 fragmentation reaction Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- 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 or manipulating encoded video stream scene graphs
- H04N21/23418—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics
-
- 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
-
- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
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
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.
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 |
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| CN108540823A true CN108540823A (en) | 2018-09-14 |
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| CN201810461765.3A Pending CN108540823A (en) | 2018-05-15 | 2018-05-15 | A kind of integrity of video method of calibration based on block chain technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110366049A (en) * | 2019-08-05 | 2019-10-22 | 杭州当虹科技股份有限公司 | A kind of stream-type video completeness protection method |
| CN112131609A (en) * | 2020-08-27 | 2020-12-25 | 国网湖北省电力有限公司电力科学研究院 | Merkle tree-based electric energy quality data exchange format file integrity verification method and system |
| CN112235543A (en) * | 2020-10-14 | 2021-01-15 | 重庆紫光华山智安科技有限公司 | Video encryption method and system based on block chain |
| CN113301130A (en) * | 2021-05-11 | 2021-08-24 | 深圳市星火数控技术有限公司 | Communication method and device of sewing equipment controller, terminal equipment and storage medium |
| CN114301599A (en) * | 2021-12-17 | 2022-04-08 | 苏州浪潮智能科技有限公司 | Digital certificate importing method and device of switch and computer equipment |
| CN114760533A (en) * | 2022-05-17 | 2022-07-15 | 北京达佳互联信息技术有限公司 | Check value storage method, frame data check device and electronic equipment |
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| CN110366049A (en) * | 2019-08-05 | 2019-10-22 | 杭州当虹科技股份有限公司 | A kind of stream-type video completeness protection method |
| CN112131609A (en) * | 2020-08-27 | 2020-12-25 | 国网湖北省电力有限公司电力科学研究院 | Merkle tree-based electric energy quality data exchange format file integrity verification method and system |
| CN112235543A (en) * | 2020-10-14 | 2021-01-15 | 重庆紫光华山智安科技有限公司 | Video encryption method and system based on block chain |
| CN112235543B (en) * | 2020-10-14 | 2023-02-17 | 重庆紫光华山智安科技有限公司 | Video encryption method and system based on block chain |
| CN113301130A (en) * | 2021-05-11 | 2021-08-24 | 深圳市星火数控技术有限公司 | Communication method and device of sewing equipment controller, terminal equipment and storage medium |
| CN114301599A (en) * | 2021-12-17 | 2022-04-08 | 苏州浪潮智能科技有限公司 | Digital certificate importing method and device of switch and computer equipment |
| CN114301599B (en) * | 2021-12-17 | 2023-07-18 | 苏州浪潮智能科技有限公司 | Digital certificate importing method and device of switch and computer equipment |
| CN114760533A (en) * | 2022-05-17 | 2022-07-15 | 北京达佳互联信息技术有限公司 | Check value storage method, frame data check device and electronic equipment |
| CN114760533B (en) * | 2022-05-17 | 2024-04-09 | 北京达佳互联信息技术有限公司 | Check value storage method, frame data check method, device and electronic equipment |
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Application publication date: 20180914 |
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