CN104581406A - Network video recording and playback system and method - Google Patents
Network video recording and playback system and method Download PDFInfo
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- CN104581406A CN104581406A CN201410831343.2A CN201410831343A CN104581406A CN 104581406 A CN104581406 A CN 104581406A CN 201410831343 A CN201410831343 A CN 201410831343A CN 104581406 A CN104581406 A CN 104581406A
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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
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47217—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for controlling playback functions for recorded or on-demand content, e.g. using progress bars, mode or play-point indicators or bookmarks
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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
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
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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
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
- H04N21/23106—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion involving caching operations
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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
- H04N21/232—Content retrieval operation locally within server, e.g. reading video streams from disk arrays
- H04N21/2326—Scheduling disk or memory reading operations
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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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/8547—Content authoring involving timestamps for synchronizing content
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Human Computer Interaction (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
The invention relates to a network video recording and playback system and method. The system comprises a video data acquisition module, a local terminal recording module and a remote terminal video playback module, wherein the video data acquisition module acquires video streaming data and business data, compresses and encodes the video streaming data, sends compressed and encoded video streaming data to the local terminal recording module and establishes an associative index for the video streaming data and an address; the local terminal recording module stores the compressed and encoded video streaming data, optimizes video storage, establishes an index for the video streaming data, receives a video playback request signal, finds out the corresponding video streaming data according to the index and sends the video streaming data to the remote terminal video playback module; the remote terminal video playback module sends a video playback request signal to the local terminal recording module, receives the video streaming data and plays videos. Compared with the prior art, the network video recording and playback system and method are applicable to low-bandwidth communication links, few in video storage file fragment, high in disk utilization rate and accurate and efficient in video playback positioning.
Description
Technical field
The present invention relates to and relate to field of video monitoring, particularly relate to a kind of network video and video playback apparatus and method.
Background technology
Existing network video and playback localization method many employings file fragmentation store, and are realized the location playback of video record by the mode of timestamp.But, this pattern is under the network condition of low bandwidth communication link, video flowing there will be a large amount of flower screen in front end display, resolution declines, the phenomenon of card even blank screen, cause be stored into disk data file there will be a large amount of file fragmentations, damage the difficulty that disk so not only adds system maintenance, and greatly can reduce the utilance of disk and the Accuracy and high efficiency of video frequency searching playback location.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of be suitable for low bandwidth communication link under video storage file fragment few, disk utilization is high, video playback accurate positioning and efficient network video and playback system and method.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of network video and playback system, comprises video data acquiring module, local terminal picture recording module and remote terminal video playback module;
Described video data acquiring module, for gathering video stream data and business datum, compressed encoded video flow data sends to local terminal picture recording module, and sets up the association index of video stream data and address;
Described local terminal picture recording module, for the video stream data after stores compression-encoded, sets up the index of video stream data; Receiver, video playback request signal, finds corresponding video stream data according to index, and sends video stream data to remote terminal video playback module;
Described remote terminal video playback module, for sending video playback request signal to local terminal picture recording module, receiver, video flow data carries out video playback.
The invention has the beneficial effects as follows: the frame of video that local terminal picture recording module is put fast any time by index, improve the efficiency of searching frame of video, video playback accurate positioning is with efficient.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described local terminal picture recording module comprises storage server, and described storage server comprises metadata file, fidx file, block file and idx file, and described storage server is also provided with system cache mechanism;
Described metadata file, for the information of the information and idx file that store, indicate and process block file;
Described block file, for store video flow data;
Described idx file, for the index of video frame time point and position in store video flow data;
Described fidx file, for searching the video frame information index in idx file.
The beneficial effect of above-mentioned further scheme is adopted to be: the information that block file can be understood by metadata file, be convenient to the storage of video stream data, the information of idx file is understood by metadata file, again by fidx file fast finding idx file, read idx file can fast finding to video stream data, improve the efficiency of searching frame of video, video playback accurate positioning.
Further, the information of described block file and the information of idx file comprise: the nearest modification time of file ID, file path, file and file storaging state information.
Further, described block file is provided with multiple, and described idx file is provided with multiple, the corresponding idx file of block file described in each.
Further, described remote terminal video playback module comprises multiple pipeline, RTSP streaming media server and client player;
Multiple described pipeline is for depositing the video stream data parsed from the picture recording module of local terminal;
Described RTSP streaming media server order reads multiple described ducted video stream data, and sends to subscription client player;
Described client player is play video stream data.
Adopt the beneficial effect of above-mentioned further scheme to be: multiple described pipeline energy quick storage video stream data, RTSP streaming media server order reads multiple described ducted video stream data, guarantees continuity and the accuracy of video playback.
A kind of network video and back method, comprise following methods:
Step S1: video data acquiring module acquires video stream data, compressed encoded video flow data sends to local terminal picture recording module, and sets up the association index of video stream data and address;
Step S2: the video stream data after the picture recording module stores compression-encoded of local terminal, sets up the index of video stream data;
Step S3: remote terminal video playback module sends video playback request signal to local terminal picture recording module;
Step S4: local terminal picture recording module finds corresponding video stream data according to index, sends video stream data to remote terminal video playback module;
Step S5: remote terminal video playback module receiver, video flow data carries out video playback.
The invention has the beneficial effects as follows: carry out video record storage and playback under being suitable for low bandwidth communication link, the frame of video that local terminal picture recording module is put fast any time by index, improve the efficiency of searching frame of video, video playback accurate positioning is with efficient.
Further, the concrete steps of described step S2:
Step S2.1: local terminal picture recording module receiver, video Video data, in writing system buffer memory, finds block file;
Step S2.2: after spatial cache fills up, becomes video frame information to write block file by video record data encapsulation, generating indexes write idx file, metadata file stores the information of block file and idx file.
The beneficial effect of above-mentioned further scheme is adopted to be: to search idx file, and the position therefrom read in this frame of video place block file, from this block document location, read follow-up video data successively, carry out video playback, optimize video storage, improve video playback efficiency.
Further, the concrete steps of described step S2.1:
Step S2.2.1: after spatial cache fills up, being taken up room by the video stream data in system cache compares with the storage size of block file;
Step S2.2.2: if video stream data takes up room be less than the memory space of block file, is packaged into video frame information write block file and stores by video stream data;
Step S2.2.3: if video stream data takes up room be greater than the memory space of block file, video stream data is packaged into video frame information write block file, block file stores completely, and closed, the block file reopening another free time stores.
Adopt the beneficial effect of above-mentioned further scheme to be: to optimize memory mechanism, video flowing terminal or card under low communication link can be avoided to produce a possibility for a large amount of small fragment file, improve disk utilization, improve disk and guarantee that video stream data is complete and continuous.
Further, described step S4 comprises the following steps:
Step S4.1: local terminal picture recording module receiver, video playback request information, according to video frame information in video playback solicited message, obtains ID and the file path of the idx file finding this frame of video from metadata file;
Step S4.2: according to ID and the file path of idx file, find idx file, and according to the index of the video frame time point in idx file and positional information, read block file, the video stream data of playback duration point can be got, video stream data Serial output.
Adopt the beneficial effect of above-mentioned further scheme to be: can fast finding to the position of the frame of video of required time point, rapid extraction video stream data, the efficiency of quickening video playback.
Further, described step S5 comprises the following steps:
Step S5.1: multiple described pipeline is for depositing the video stream data parsed from the picture recording module of local terminal;
Step S5.2: described RTSP streaming media server order reads multiple described ducted video stream data, and sends to subscription client player;
Step S5.3: described client player is play video stream data.
Accompanying drawing explanation
Fig. 1 is the module frame chart of a kind of network video of the present invention and playback system;
Fig. 2 is the structured flowchart of storage server;
Fig. 3 is the flow chart of a kind of network video of the present invention and back method;
Fig. 4 is the storage means flow chart of Internet video;
Fig. 5 is the back method flow chart of Internet video.
In accompanying drawing, the list of parts representated by each label is as follows:
1, video data acquiring module, 2, local terminal picture recording module, 3, remote terminal video playback module.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, a kind of network video and playback system, comprise video data acquiring module 1, local terminal picture recording module 2 and remote terminal video playback module 3;
Described video data acquiring module 1, for gathering video stream data and business datum, compressed encoded video flow data sends to local terminal picture recording module 2, and sets up the association index of video stream data and address;
Described local terminal picture recording module 2, for the video stream data after stores compression-encoded, sets up the index of video stream data; Receiver, video playback request signal, finds corresponding video stream data according to index, and sends video stream data to remote terminal video playback module 3;
Described remote terminal video playback module 3, for sending video playback request signal to local terminal picture recording module 2, receiver, video flow data carries out video playback.
As shown in Figure 2, described local terminal picture recording module 2 comprises storage server, and described storage server comprises metadata file, fidx file, block file and idx file, and described storage server is also provided with system cache mechanism;
Described metadata file, for the information of the information and idx file that store, indicate and process block file;
Described block file, for store video flow data;
Described idx file, for the index of video frame time point and positional information in store video flow data;
Described fidx file, for searching the video frame information index in idx file.
The information of described block file and the information of idx file comprise: the nearest modification time of file ID, file path, file and file storaging state information.
Described block file is provided with multiple, and described idx file is provided with multiple, the corresponding idx file of block file described in each.
Described remote terminal video playback module 3 comprises multiple pipeline, RTSP streaming media server and client player;
Multiple described pipeline is for depositing the video stream data parsed from local terminal picture recording module 2;
Described RTSP streaming media server order reads multiple described ducted video stream data, and sends to subscription client player;
Described client player is play video stream data.
As shown in Figure 3, a kind of network video and back method, comprise following methods:
Step S1: video data acquiring module 1 gathers video stream data, compressed encoded video flow data sends to local terminal picture recording module 2, and sets up the association index of video stream data and address;
Step S2: the video stream data after local terminal picture recording module 2 stores compression-encoded, sets up the index of video stream data;
Step S3: remote terminal video playback module 3 sends video playback request signal to local terminal picture recording module 2;
Step S4: local terminal picture recording module 2 finds corresponding video stream data according to index, sends video stream data to remote terminal video playback module 3;
Step S5: remote terminal video playback module 3 receiver, video flow data carries out video playback.
As shown in Figure 4, the concrete steps of described step S2:
Step S2.1: local terminal picture recording module receiver, video Video data, in writing system buffer memory, finds block file;
Step S2.2: after spatial cache fills up, becomes video frame information to write block file by video record data encapsulation, generating indexes write idx file, metadata file stores the information of block file and idx file.
The concrete steps of described step S2.1:
Step S2.2.1: after spatial cache fills up, being taken up room by the video stream data in system cache compares with the storage size of block file;
Step S2.2.2: if video stream data takes up room be less than the memory space of block file, is packaged into video frame information write block file and stores by video stream data;
Step S2.2.3: if video stream data takes up room be greater than the memory space of block file, video stream data is packaged into video frame information write block file, block file stores completely, and closed, the block file reopening another free time stores.
As shown in Figure 5, described step S4 comprises the following steps:
Step S4.1: local terminal picture recording module receiver, video playback request information, according to video frame information in video playback solicited message, obtains ID and the file path of the idx file finding this frame of video from metadata file;
Step S4.2: according to ID and the file path of idx file, find idx file, and according to the index of the video frame time point in idx file and positional information, read block file, the video stream data of playback duration point can be got, video stream data Serial output.
Described step S5 comprises the following steps:
Step S5.1: multiple described pipeline is for depositing the video stream data parsed from local terminal picture recording module 2;
Step S5.2: described RTSP streaming media server order reads multiple described ducted video stream data, and sends to subscription client player;
Step S5.3: described client player is play video stream data.
Because client player adopts multiple thread to read and write pipeline, therefore the data of a thread reading may not be this thread write data, the data that service end writes after reading the data that this thread just write again, the namely multiple thread write of client may be gone here and there with the data read, mark can be added when client writes data, after service end reads data, this mark on the data band write again, can judge whether it is the message that returns of service end after write data according to this mark when client reads.Different user realizes multichannel video playback in different front ends can be realized like this.
Meanwhile, in the design of playback scheme, consider the playback controls function of user, herein for each playback thread, a playback controls node be all set, this Controlling vertex can control flexibly playback time-out, continue, restart and stopping etc.All playback controls nodes are managed by chained list, when user asks playing back videos, while establishment playback thread, create the playback controls node of its correspondence, and node is added in chained list, when stopping playback, deleting playback thread and deleting corresponding Controlling vertex.
1. can index frame of video any time
In the storage scheme of this optimization, video file comprises two files, is Video data file and video recording index file respectively.Key frame information and the position of this key frame in Video data file of point is any time stored in video recording index file.When a certain frame video retrieved by needs, only need to search video recording index file according to video time, and therefrom read the position in this frame of video place video file, follow-up video data can be read successively from this video file position, carry out playing back videos.
2. guarantee that Video data is complete and continuous
Due in the process of video recording, have employed buffering, namely when a certain frame video write buffer memory, can judge whether the video of whole buffer memory data of inclining can exceed the size of video file, if exceed, then oneself in current cache there are data to write video file, and this video file is closed, reopen an idle video file, thus ensure the integrality storing video information.
3. improve disk utilization
When Video data stores, the self-consistentency of data can be judged according to file metadata information, by the data of homology write identical file, make full use of disk space, video flowing terminal or card under low communication link can be avoided to produce a possibility for a large amount of small fragment file, therefore, there will not be disk fragments, substantially increase disk utilization.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. network video and a playback system, is characterized in that: comprise video data acquiring module (1), local terminal picture recording module (2) and remote terminal video playback module (3);
Described video data acquiring module (1), for gathering video stream data, compressed encoded video flow data sends to local terminal picture recording module (2), and sets up the association index of video stream data and address;
Described local terminal picture recording module (2), for the video stream data after stores compression-encoded, sets up the index of video stream data; Receiver, video playback request signal, finds corresponding video stream data according to index, and sends video stream data to remote terminal video playback module (3);
Described remote terminal video playback module (3), for sending video playback request signal to local terminal picture recording module (2), receiver, video flow data carries out video playback.
2. a kind of network video and playback system according to claim 1, it is characterized in that: described local terminal picture recording module (2) comprises storage server, described storage server comprises metadata file, fidx file, block file and idx file, and described storage server is also provided with system cache mechanism;
Described metadata file, for the information of the information and idx file that store, indicate and process block file;
Described block file, for store video flow data;
Described idx file, for the index of video frame time point and position in store video flow data;
Described fidx file, for searching the video frame information index in idx file.
3. the network video according to claim 2 under a kind of low bandwidth communication link and playback system, is characterized in that: the information of described block file and the information of idx file comprise: file I D, file path, the nearest modification time of file and file storaging state information.
4. a kind of network video and playback system according to claim 2, it is characterized in that: described block file is provided with multiple, described idx file is provided with multiple, the corresponding idx file of block file described in each.
5. a kind of network video and playback system according to claim 1, is characterized in that: described remote terminal video playback module (3) comprises multiple pipeline, RTSP streaming media server and client player;
Multiple described pipeline is used for depositing the video stream data parsed from local terminal picture recording module (2);
Described RTSP streaming media server order reads multiple described ducted video stream data, and sends to subscription client player;
Described client player is play video stream data.
6. network video and a back method, is characterized in that: comprise following methods:
Step S1: video data acquiring module (1) gathers video stream data, and compressed encoded video flow data sends to local terminal picture recording module (2), and sets up the association index of video stream data and address;
Step S2: the video stream data after local terminal picture recording module (2) stores compression-encoded, sets up the index of video stream data;
Step S3: remote terminal video playback module (3) sends video playback request signal to local terminal picture recording module (2);
Step S4: local terminal picture recording module (2) finds corresponding video stream data according to index, sends video stream data to remote terminal video playback module;
Step S5: remote terminal video playback module (3) receiver, video flow data carries out video playback.
7. a kind of network video and back method according to claim 6, is characterized in that, the concrete steps of described step S2:
Step S2.1: local terminal picture recording module receiver, video Video data, in writing system buffer memory, finds block file;
Step S2.2: after spatial cache fills up, becomes video frame information to write block file by video record data encapsulation, generating indexes write idx file, metadata file stores the information of block file and idx file.
8. a kind of network video and back method according to claim 7, is characterized in that, the concrete steps of described step S2.1:
Step S2.2.1: after spatial cache fills up, being taken up room by the video stream data in system cache compares with the storage size of block file;
Step S2.2.2: if video stream data takes up room be less than the memory space of block file, is packaged into video frame information write block file and stores by video stream data;
Step S2.2.3: if video stream data takes up room be greater than the memory space of block file, video stream data is packaged into video frame information write block file, block file stores completely, and closed, the block file reopening another free time stores.
9. a kind of network video and back method according to claim 6, it is characterized in that, described step S4 comprises the following steps:
Step S4.1: local terminal picture recording module receiver, video playback request information, according to video frame information in video playback solicited message, obtains ID and the file path of the idx file finding this frame of video from metadata file;
Step S4.2: according to ID and the file path of idx file, find idx file, and according to the index of the video frame time point in idx file and positional information, read block file, get the video stream data of playback duration point, video stream data Serial output.
10. a kind of network video and back method according to claim 6, it is characterized in that, described step S5 comprises the following steps:
Step S5.1: multiple described pipeline is used for depositing the video stream data parsed from local terminal picture recording module (2);
Step S5.2: described RTSP streaming media server order reads multiple described ducted video stream data, and sends to subscription client player;
Step S5.3: described client player is play video stream data.
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| CN106686466A (en) * | 2017-01-10 | 2017-05-17 | 武汉卓威视讯科技有限公司 | Video data positioning method |
| CN108337482A (en) * | 2018-02-08 | 2018-07-27 | 北京信息科技大学 | The storage method and system of monitor video |
| CN108628270A (en) * | 2018-06-11 | 2018-10-09 | 哈尔滨工程大学 | A kind of optimization network control unit and method based on PLC remote monitoring terminals |
| CN108962291A (en) * | 2018-07-25 | 2018-12-07 | 武汉恩智电子科技有限公司 | A kind of log identification video playback system based on video monitoring |
| CN109040640A (en) * | 2018-08-02 | 2018-12-18 | 安徽南瑞继远电网技术有限公司 | A kind of distributed video storage-playback |
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| CN113099149A (en) * | 2021-04-02 | 2021-07-09 | 杭州海康威视数字技术股份有限公司 | Data processing method, system and storage medium |
| CN113596518A (en) * | 2021-08-13 | 2021-11-02 | 北京中电兴发科技有限公司 | Video access method for improving double-speed playing performance |
| CN114245070A (en) * | 2021-11-30 | 2022-03-25 | 慧之安信息技术股份有限公司 | Method and system for centralized viewing of regional monitoring content |
| CN114339109A (en) * | 2021-12-24 | 2022-04-12 | 中电福富信息科技有限公司 | Video cascading method based on cross-storage resource, cross-network and cross-file |
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