CN115396697A - Video data transmission method, system and storage device - Google Patents
Video data transmission method, system and storage device Download PDFInfo
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- CN115396697A CN115396697A CN202211058346.8A CN202211058346A CN115396697A CN 115396697 A CN115396697 A CN 115396697A CN 202211058346 A CN202211058346 A CN 202211058346A CN 115396697 A CN115396697 A CN 115396697A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims description 19
- 230000006835 compression Effects 0.000 claims description 17
- 238000004590 computer program Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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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, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234336—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by media transcoding, e.g. video is transformed into a slideshow of still pictures or audio is converted into text
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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, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234381—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the temporal resolution, e.g. decreasing the frame rate by frame skipping
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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]
- H04N21/40—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, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing 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 reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440236—Processing 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 reformatting operations of video signals for household redistribution, storage or real-time display by media transcoding, e.g. video is transformed into a slideshow of still pictures, audio is converted into text
Abstract
The invention belongs to the video playing technology and discloses a video data transmission method, a system and a storage device, wherein the method comprises a decomposition step, a transmission step and a display step; a decomposition step: decomposing a pre-transmitted video stream into a plurality of single-frame pictures; a transmission step: transmitting a plurality of single-frame pictures to the local; a display step: and locally merging and displaying a plurality of single-frame pictures. The invention solves the problems of more consumed flow resources, high network requirement and overlong transmission time in the transmission process of the video transmission mode in the prior art by decomposing the views into pictures for transmission.
Description
Technical Field
The invention belongs to the technical field of video playing, and particularly relates to a video data transmission method, a video data transmission system and storage equipment.
Background
With the development of the internet industry and the popularization of security awareness of people, the use of the camera is gradually merged into the life and work of the public, in order to ensure the personal and property safety of shops and customers, the merchant installs the camera in the shop, and residents also install the camera at home for the safety of residences. In order to facilitate a user to check the shooting content of the camera all the time, the mobile phone is usually used for installing an app to access the camera in real time, and the shooting video of the camera is checked. In the prior art, when a camera transmits a shot video to a mobile phone, a video is generally divided into a plurality of sections for transmission; however, this transmission method not only consumes a large amount of traffic resources in the transmission process, but also requires a high-demand network guarantee, and if the network signal is poor in the transmission process, the transmission time is too long, and the user cannot acquire the shot picture of the camera in time.
Disclosure of Invention
The invention aims to provide a video data transmission method, a video data transmission system and a storage device, and solves the problems that in the prior art, a video transmission mode consumes more flow resources in the transmission process, has high requirements on a network and has overlong transmission time.
The basic scheme provided by the invention is as follows: a video data transmission method, comprising the steps of:
a decomposition step: decomposing a pre-transmitted video stream into a plurality of single-frame pictures;
a transmission step: transmitting a plurality of single-frame pictures to the local;
a display step: and locally combining and displaying a plurality of single-frame pictures.
The principle and the advantages of the invention are as follows: when the picture exceeds 15 frames/second in the display process, the visual display is the video. Therefore, the video stream to be transmitted is decomposed into a plurality of single-frame pictures, and the plurality of single-frame pictures are transmitted to the local, compared with the prior art that the video is decomposed into a plurality of small videos, the occupied space is reduced after the video is decomposed into the pictures, so that the flow resource required in the transmission process is less, the time required by transmission is greatly shortened, even if the network signal in the transmission process is poor, the overlong loading time of a user cannot be delayed, the user can timely acquire the shot picture of the camera through the scheme, and the convenience and the good sensitivity of the user in using the camera are improved.
Further, the decomposing step specifically includes the steps of:
s1: acquiring a first video playing instruction, wherein the first video playing instruction comprises a first video resolution;
s2: determining the number of the single-frame pictures decomposed according to the first video resolution;
s3: and decomposing the pre-transmitted video stream according to the number of the single-frame pictures.
Has the advantages that: the user can set the first video resolution ratio according to the network condition and the self requirement to acquire videos with different image qualities, and the phenomenon that the transmission time of the videos is too long due to poor network conditions is avoided, so that the time required by transmission is shortened by transmitting single-frame pictures with different quantities, and the convenience of checking the camera by the user is improved.
Further, the decomposing step further includes a step S4: generating a corresponding index for the decomposed video stream, and identifying each single-frame picture according to the index;
the step of displaying further comprises the steps of:
s5: reading a plurality of single-frame pictures according to the index;
s6: and sequentially combining the read single-frame pictures into a video and displaying the video locally.
Has the advantages that: the method and the device have the advantages that the single-frame pictures are identified, the uniqueness of each picture is determined, the single-frame pictures are read according to the indexes, the accuracy of the sequence of the pictures in the merging and displaying process is guaranteed, the situation that the video is incomplete due to the fact that the pictures are disordered in the transmission process is avoided, and the safety and the accuracy of video transmission are improved.
Further, the transmitting step specifically comprises: and compressing a plurality of single-frame pictures to generate a compressed packet, and transmitting the compressed packet and the index to the local.
Has the advantages that: the pictures are compressed and then transmitted, so that network resources required in the transmission process and time required by transmission are reduced, and the transmission speed and efficiency of videos are improved.
Further, the method also comprises a storage step and a calling step;
a storage step: storing the received compressed packet and the index association locally;
calling: and calling the associated compressed packet through the index, and merging and displaying the single-frame pictures of the compressed packet in real time.
Has the advantages that: compared with the prior art, the scheme can save about 60% of space, and when the video needs to be played, the corresponding compression packet is called through the index to be decompressed and played.
Further, the calling step further comprises the steps of:
s7: inputting an index to inquire a related compressed packet, decompressing the compressed packet to obtain a plurality of single-frame pictures;
s8: setting a second video playing instruction, wherein the second video playing instruction comprises a second video resolution, and the second video resolution is smaller than the first video resolution;
s9: and extracting a quantitative single-frame picture according to the second video resolution, and merging and displaying the extracted single-frame picture in real time.
Has the beneficial effects that: when the video is called, the videos with different image qualities are played by setting different resolutions, so that a user can select differentiated videos according to needs, and the diversity of the scheme is improved.
The invention also provides a video data transmission system, and the video data transmission method in the basic scheme is used in the execution process.
Further, the system also comprises a transmission end and a receiving end; the transmission end comprises an acquisition module, a decomposition module, a generation module and a transmission module; the receiving end comprises a sending module, a receiving module and a playing module;
the sending module is used for sending a first video playing instruction to the transmission end, wherein the first video playing instruction comprises a first video resolution;
the acquisition module is used for acquiring a first video resolution;
the decomposition module is used for decomposing a pre-transmitted video stream into a plurality of single-frame pictures, wherein the number of the single-frame pictures is determined by the resolution of a first video, and the higher the resolution of the first video is, the more the number of the single-frame pictures is;
the generating module is used for generating an index of a pre-transmitted video stream and identifying each single-frame picture according to the index;
the transmission module is used for compressing a plurality of single-frame pictures into a compression packet and sending the compression packet and the index to the receiving end together;
the receiving module is used for receiving the compressed packets and the indexes;
the playing module is used for decompressing the compressed packet, reading and displaying a plurality of single-frame pictures according to the index.
Has the advantages that: the receiving end sends a first video playing instruction to the transmission end, and the transmission end decomposes the video into a certain number of single-frame pictures through the first video resolution, so that the network resources required in the transmission process are reduced, meanwhile, the time required by transmission is shortened, and the transmission speed and the transmission efficiency are improved; the index of the video is generated, and the single-frame picture is identified, so that the uniqueness of the single-frame picture is ensured, the single-frame picture can be restored into the video when being transmitted to a receiving end, and the accuracy of transmission is ensured.
Further, the receiving end also comprises a storage module and a calling module;
the storage module is used for storing the compressed packet and the index in a correlation manner;
the calling module is used for calling the stored compressed packet to the playing module according to the index for playing; the calling module is further configured to set a second video playing instruction, the second video playing instruction includes a second video resolution, the second video resolution is smaller than the first video resolution, and the playing module is further configured to select a corresponding number of single-frame pictures to play according to the second video resolution.
Has the advantages that: compared with the prior art, the scheme can save about 60% of space, and when the video needs to be played, the corresponding compression packet is called through the index to be decompressed and played.
The present invention also provides a computer readable storage device having stored thereon a computer program which, when executed by a processor, implements the steps of any of the above-described video data transmission methods.
Drawings
FIG. 1 is a logic diagram illustrating an embodiment of a video data transmission method according to the present invention;
fig. 2 is a schematic structural diagram of a video data transmission system according to an embodiment of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
the embodiment is basically as shown in the attached figure 1: a video data transmission method comprises a decomposition step, a transmission step, a display step, a storage step and a calling step:
the decomposing step specifically comprises the following steps:
s1: acquiring a first video playing instruction, wherein the first video playing instruction comprises a first video resolution;
s2: determining the number of the single-frame pictures decomposed according to the first video resolution; the higher the first video resolution, the greater the number of single frame pictures that are decomposed into. In this embodiment, if the resolution is 1080P, the number of single-frame pictures is set to 60fps/s, and if the resolution is 720P, the number of single-frame pictures is set to 30fps/s; the user can set the first video resolution by himself before the video is acquired, or self-adaptive setting is carried out according to the current network speed;
s3: in this embodiment, subjective features of the video stream are identified by combining an opencv technology and an ffmpeg technology, and the video stream is processed into a single frame picture, where other video decomposition technologies are also included in a real-time process.
S4: generating a corresponding index for the decomposed video stream, and identifying each single-frame picture according to the index;
a transmission step: compressing a plurality of single-frame pictures to generate a compressed packet, and transmitting the compressed packet and the index to the local;
the step of displaying further comprises the steps of:
s5: reading a plurality of single-frame pictures according to the index;
s6: sequentially combining the read single-frame pictures into a video and displaying the video locally;
a storage step: storing the received compressed packet and the index association locally;
the calling step further comprises the steps of:
s7: inputting an index to inquire a related compressed packet, decompressing the compressed packet to obtain a plurality of single-frame pictures;
s8: setting a second video playing instruction, wherein the second video playing instruction comprises a second video resolution, and the second video resolution is smaller than the first video resolution;
s9: and extracting a quantitative single-frame picture according to the first video resolution, and combining and displaying the extracted single-frame picture in real time.
In the prior art, when a video stream is compressed, the subjective characteristics of a receiver and the specific meaning, importance degree and caused consequences of time in the video are not considered, so that the compressed video has risks of distortion and packet loss. In the process of implementing the video data transmission method, a novel gray level multiple compression algorithm is obtained, subjective characteristics of the video stream are identified, important characteristics of the video stream are processed through the gray level multiple compression algorithm, and a plurality of decomposed single-frame pictures are compressed on the basis, so that the distortion rate and the packet loss rate of the video stream are reduced.
The gray level multi-compression method is based on an H.264 compression algorithm, combines the multi-compression algorithm obtained by block data processing and gray level compression, and can compress real-time video streams in formats such as a real-time streaming protocol (RTSP) and a streaming media network transport protocol (HLS) based on HTTP. The method comprises the steps of establishing a compression algorithm model, enabling the compression algorithm module to analyze real-time video streams into single-frame pictures, conducting multi-gray-level compression on the single-frame pictures, integrating the single-frame pictures into the real-time video streams, enabling the compression ratio of the algorithm model to be optimal through training of a large amount of real-time video stream data on the algorithm model, and enabling the video streams in various formats to be deeply compressed.
As shown in fig. 2, this embodiment further discloses a video data transmission system, and the above-mentioned video data transmission method is used in the execution process. The video data transmission system comprises a transmission end and a receiving end; the transmission end comprises an acquisition module, a decomposition module, a generation module and a transmission module; the receiving end comprises a sending module, a receiving module, a playing module, a storage module and a calling module;
the sending module is used for sending a first video playing instruction to the transmission end, wherein the first video playing instruction comprises a first video resolution;
the acquisition module is used for acquiring a first video resolution;
the decomposition module is used for decomposing a pre-transmitted video stream into a plurality of single-frame pictures, wherein the number of the single-frame pictures is determined by the resolution of a first video, and the higher the resolution of the first video is, the more the number of the single-frame pictures is;
the generating module is used for generating corresponding indexes for the pre-transmitted video streams and identifying each single-frame picture according to the indexes;
the transmission module is used for compressing a plurality of single-frame pictures into a compression packet and sending the compression packet and the index to the receiving end together;
the receiving module is used for receiving the compressed packets and the indexes;
the playing module is used for decompressing the compressed packet, reading and displaying a plurality of single-frame pictures according to the index.
The storage module is used for storing the compressed packet and the index in a correlation manner;
the calling module is used for calling the stored compressed packet to the playing module according to the index for playing; the calling module is further used for setting a second video playing instruction, wherein the second video playing instruction comprises a second video resolution, and the second video resolution is smaller than the first video resolution; the playing module is further used for selecting the single-frame pictures with the corresponding number according to the second video resolution ratio to play.
A computer-readable storage device, on which a computer program is stored which, when being executed by a processor, carries out the steps of a video data transmission method as described above.
The specific implementation process is as follows:
a user sets a first video playing instruction through a receiving end and sends the first video playing instruction to a transmission end, the transmission end decomposes a video into a certain number of single-frame pictures through a first video resolution ratio, simultaneously generates an index of the video, identifies the single-frame pictures, compresses all the single-frame pictures and sends the compressed single-frame pictures and the index to the receiving end, the receiving end decompresses the single-frame pictures after receiving the single-frame pictures, reads the single-frame pictures according to the index, and combines and displays the single-frame pictures in sequence; meanwhile, the receiving end stores the compression packet and the index of the single-frame picture, so that a user can conveniently extract and play at any time later, and when the user extracts and plays again, a second video playing instruction can be set to extract videos with various video resolutions.
The foregoing are merely exemplary embodiments of the present invention, and no attempt is made to show structural details of the invention in more detail than is necessary for the fundamental understanding of the art, the description taken with the drawings making apparent to those skilled in the art how the several forms of the invention may be embodied in practice with the teachings of the invention. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. A video data transmission method, characterized by: the method comprises the following steps:
a decomposition step: decomposing a pre-transmitted video stream into a plurality of single-frame pictures;
a transmission step: transmitting a plurality of single-frame pictures to the local;
a display step: and locally merging and displaying a plurality of single-frame pictures.
2. A method for transmitting video data according to claim 1, characterized in that: the decomposing step specifically comprises the following steps:
s1: acquiring a first video playing instruction, wherein the first video playing instruction comprises a first video resolution;
s2: determining the number of the single-frame pictures decomposed according to the first video resolution;
s3: and decomposing the pre-transmitted video stream according to the number of the single-frame pictures.
3. A method for transmitting video data according to claim 2, characterized in that: the decomposing step further includes step S4: generating a corresponding index for the decomposed video stream, and identifying each single-frame picture according to the index;
the step of displaying further comprises the steps of:
s5: reading a plurality of single-frame pictures according to the index;
s6: and sequentially combining the read single-frame pictures into a video and displaying the video locally.
4. A method for transmitting video data according to claim 3, characterized in that: the transmission step specifically comprises: and compressing a plurality of single-frame pictures to generate a compressed packet, and transmitting the compressed packet and the index to the local.
5. The method for transmitting video data according to claim 4, wherein: also comprises a storage step and a calling step;
a storage step: storing the received compressed packet and the index association locally;
calling: and calling the associated compressed packet through the index, and merging and displaying the single-frame pictures of the compressed packet in real time.
6. The video data transmission method according to claim 5, wherein: the calling step further comprises the steps of:
s7: inputting an index to inquire a related compressed packet, decompressing the compressed packet to obtain a plurality of single-frame pictures;
s8: setting a second video playing instruction, wherein the second video playing instruction comprises a second video resolution, and the second video resolution is smaller than the first video resolution;
s9: and extracting a quantitative single-frame picture according to the second video resolution, and merging and displaying the extracted single-frame picture in real time.
7. A video data transmission system characterized by: in execution a method of video data transmission as claimed in claim 1 is used.
8. A video data transmission system according to claim 7, wherein: the system also comprises a transmission end and a receiving end; the transmission end comprises an acquisition module, a decomposition module, a generation module and a transmission module; the receiving end comprises a sending module, a receiving module and a playing module;
the sending module is used for sending a first video playing instruction to the transmission end, wherein the first video playing instruction comprises a first video resolution;
the acquisition module is used for acquiring a first video resolution;
the decomposition module is used for decomposing a pre-transmitted video stream into a plurality of single-frame pictures, wherein the number of the single-frame pictures is determined by the resolution of a first video, and the higher the resolution of the first video is, the more the number of the single-frame pictures is;
the generating module is used for generating an index of a pre-transmitted video stream and identifying each single-frame picture according to the index;
the transmission module is used for compressing a plurality of single-frame pictures into a compression packet and sending the compression packet and the index to the receiving end together;
the receiving module is used for receiving the compressed packets and the indexes;
the playing module is used for decompressing the compressed packet, reading and displaying a plurality of single-frame pictures according to the index.
9. A video data transmission system according to claim 8, wherein: the receiving end also comprises a storage module and a calling module;
the storage module is used for storing the compressed packet and the index in a correlation manner;
the calling module is used for calling the stored compressed packet to the playing module according to the index for playing; the calling module is further used for setting a second video calling instruction, the second video playing instruction comprises a second video resolution, the second video resolution is smaller than the first video resolution, and the playing module is further used for selecting a corresponding number of single-frame pictures to play according to the second video resolution.
10. A computer-readable storage device, characterized in that: the computer-readable storage device has stored thereon a computer program which, when being executed by a processor, carries out the steps of a video data transmission method according to any one of claims 1 to 8.
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| CN202211058346.8A CN115396697A (en) | 2022-08-31 | 2022-08-31 | Video data transmission method, system and storage device |
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| CN202211058346.8A CN115396697A (en) | 2022-08-31 | 2022-08-31 | Video data transmission method, system and storage device |
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| JP2020053760A (en) * | 2018-09-25 | 2020-04-02 | 富士ゼロックス株式会社 | Information processing system, terminal device and program |
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| CN102547269A (en) * | 2010-12-31 | 2012-07-04 | 上海讯垒网络科技有限公司 | Network video browsing method |
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