WO2018077266A1

WO2018077266A1 - Breakpoint-resume transmission method and device for surveillance video

Info

Publication number: WO2018077266A1
Application number: PCT/CN2017/108359
Authority: WO
Inventors: 王智勇
Original assignee: 杭州海康威视系统技术有限公司
Priority date: 2016-10-31
Filing date: 2017-10-30
Publication date: 2018-05-03
Also published as: CN108023906B; CN108023906A

Abstract

Disclosed in the embodiments of the present application are a breakpoint-resume transmission method and device for a surveillance video, applied to a client. The method comprises: obtaining a download instruction; determining whether the breakpoint identifier exists, which corresponds to a start time and an end time carried in the download instruction; if so, according to the start time, finding part of a surveillance video presently being downloaded, corresponding to a target surveillance video; according to said surveillance video part, determining the download breakpoint time of the target surveillance video; sending the download breakpoint time and the end time to a target monitoring device for storing the target surveillance video, so that the target monitoring device sends, to the client, video code streams of the target surveillance video from the download breakpoint time to the end time; and receiving and saving the video code streams. The present solution can perform breakpoint-resume transmission from the download breakpoint time, when the download of a target surveillance video is interrupted and is performed again, without the need to re-download the target surveillance video from the start time, saving much downloading time and traffic.

Description

Method and device for resuming transmission of surveillance video

This application claims priority to Chinese Patent Application No. 201610931170.0, entitled "Restoring Method and Apparatus for Surveillance of Surveillance Video," filed on October 31, 2016, the entire contents of which are incorporated herein by reference. In the application.

Technical field

The present application relates to the field of monitoring security, and in particular to a method and device for a breakpoint transmission of a surveillance video.

Background technique

At present, monitoring equipment is widely used in various public places to monitor on-site safety. For example, monitoring equipment is generally installed in various shopping malls and office buildings. The early monitoring equipment is generally a closed-circuit monitoring system, which includes a front-end camera device, a back-end host device, and a display. Specifically, the front-end camera device collects the live image and transmits it to the back-end host device, and simultaneously displays the monitoring video through the display. Image for staff to view live conditions in real time to monitor site safety.

With the rapid development of network technology, monitoring equipment has been gradually reformed and upgraded, and remote monitoring and other functions can be realized through the network. The client can establish a connection with the monitoring device through the network, watch the monitoring video in real time, and download the monitoring video stored by the monitoring device. During the monitoring video downloading process, after receiving the download command of the user, the client sends the start time and the end time of the monitoring video to be downloaded to the corresponding monitoring device, and the monitoring device codes the corresponding monitoring video from the start time to the end time. The stream is returned to the client, and the client saves the code stream to complete the download. For example, the start time of the surveillance video requested by the client is 8:00 am on September 15, 2016, and the end time is 10:00 am on September 15, 2016. Then the monitoring equipment will be at 8:00 am on September 15, 2016. The surveillance video stream during the 10:00 am is sent to the client.

However, once the download is interrupted due to network or human reasons during the download process, the client needs to restart the download from the beginning of the surveillance video, and cannot continue to download from the interrupted location, which will result in a lot of waste of time and traffic, especially in the In some environments with limited bandwidth, it takes more time.

Summary of the invention

The embodiment of the present application discloses a method and a device for continuously transmitting a breakpoint of a surveillance video, which are used to solve the present problem. There is a problem in the technology that downloading surveillance video can not be interrupted by the time and traffic wasted. The technical solutions are as follows:

In a first aspect, the embodiment of the present application provides a method for a resume transmission of a surveillance video, which is applied to a client, and the method includes:

Obtaining a download instruction, where the download instruction carries a start time and an end time of the target surveillance video to be downloaded;

Determining whether there is a breakpoint identifier corresponding to the start time and the end time, and if yes, searching for a currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time, wherein the breakpoint identifier is : Recorded during the abnormal end of the monitoring video download process;

Determining a download breakpoint time of the target surveillance video according to the part of the monitored video recorded; sending the download breakpoint time and the ending time to a target monitoring device storing the target surveillance video to make the target The monitoring device sends the video code stream of the target surveillance video from the download breakpoint time to the end time to the client;

The video stream is received and saved.

Optionally, the step of searching for the currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time includes:

And searching for the currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time and the end time.

Optionally, when the target monitoring video is a standard code stream, the determining, according to the part of the monitoring video that is found, the step of determining a download breakpoint time of the target monitoring video, including:

Determining the last I frame image in the partial surveillance video found;

The timestamp corresponding to the last I image is determined as the download breakpoint time, or the time of the first preset duration before the timestamp corresponding to the last I image is determined as the download breakpoint time.

Optionally, when the target monitoring video is a non-standard code stream, the determining, according to the part of the monitoring video that is found, the step of determining a download breakpoint time of the target monitoring video, including:

Determining the video duration of the part of the monitored video that is found, and the starting time and the video The duration is added;

The time obtained by the addition calculation is determined as the download breakpoint time, or the time of the second preset time before the time calculated by the addition is determined as the download breakpoint time.

Optionally, the method further includes:

After the end of the resume of the breakpoint, the part of the monitored video recorded is merged with the video file downloaded by the resume of the breakpoint.

Optionally, when the target monitoring video is a standard code stream, the step of splicing the searched partial monitoring video with the downloaded video file of the current breakpoint resuming includes:

Determining image data of the last I frame image of the found partial surveillance video;

Determining the same image data as the image data of the last I frame image of the found partial surveillance video from the image frame of the third preset duration starting from the download of the downloaded video file at the current breakpoint Frame image

The video file downloaded by the current breakpoint is spliced with the found partial surveillance video at the same I frame image position.

Optionally, when the target monitoring video is a non-standard code stream, the step of splicing the searched partial monitoring video with the downloaded video file of the current breakpoint resuming includes:

Converting image data of the last fourth preset duration of the found partial monitoring video into binary data;

Converting the image data of the fifth preset duration of the video file downloaded by the current resume to the binary data;

Determining, from the binary data converted by the data of the fifth preset duration, the same binary data as the data converted by the fourth preset duration;

And splicing the video file downloaded by the current breakpoint and the part of the monitored video recorded at the same binary data position.

Optionally, before the step of searching for the currently downloaded partial surveillance video corresponding to the target surveillance video, the method further includes:

Determining, according to the breakpoint identifier, whether the number of download interruptions exceeds a preset number of times, wherein the breakpoint identifier corresponds to the number of download interruptions;

If no, the step of searching for the currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time is continued.

Optionally, the downloading instruction further carries device information.

Correspondingly, before the step of sending the downloading breakpoint time and the ending time to the target monitoring device storing the target monitoring video, the method further includes:

Determining, according to the device information, a target monitoring device that stores the target surveillance video.

In a second aspect, the embodiment of the present application further provides a device for monitoring a video recording point, which is applied to a client, and the device includes:

a download instruction module, configured to obtain a download instruction, where the download instruction carries a start time and an end time of the target surveillance video to be downloaded;

a breakpoint identification determining module, configured to determine whether there is a breakpoint identifier corresponding to the start time and the end time, and if yes, searching for a currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time, The breakpoint identifier is: recorded when the monitoring video downloading process ends abnormally;

Downloading a breakpoint time determination module, configured to determine a download breakpoint moment of the target surveillance video according to the part of the monitored video recorded;

Downloading a breakpoint time sending module, configured to send the download breakpoint time, the end time to a target monitoring device that stores the target surveillance video, so that the target monitoring device records the target surveillance video from the Transmitting a video stream from the breakpoint moment to the end moment to the client;

The video stream receiving module is configured to receive and save the video stream.

Optionally, the breakpoint identifier determining module includes:

The search unit has been downloaded to search for the currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time and the end time.

Optionally, the download breakpoint time determination module includes:

An image determining unit, configured to determine a last I frame image of the part of the monitored video records when the target monitoring video is a standard code stream;

a first download breakpoint time determining unit, configured to determine a timestamp corresponding to the last I image as a download breakpoint time, or a first preset duration before a timestamp corresponding to the last I image The moment is determined as the download breakpoint moment.

Optionally, the download breakpoint time determination module includes:

a duration determining unit, configured to determine a video duration of the part of the monitored video recording when the target monitoring video is a non-standard code stream, and add the starting time to the video duration;

The second download breakpoint time determining unit is configured to determine the time obtained by the addition calculation as the download breakpoint time, or determine the time of the second preset duration before the time calculated by the addition as the download breakpoint time.

Optionally, the device further includes:

The file splicing module is configured to splicing the part of the monitored video records and the video files downloaded by the resume of the current breakpoint after the end of the resume of the breakpoint.

Optionally, the file splicing module includes:

a first image determining unit, configured to: when the target monitoring video is a standard code stream, determine image data of a last I frame image of the found partial monitoring video;

a second image determining unit, configured to determine, from an image frame of a third preset duration from the beginning of the downloaded video file of the current breakpoint, the last frame of the monitored video with the found portion The same I frame image as the image data of the I frame image;

And a first file splicing unit, configured to splicing the video file downloaded by the current breakpoint and the part of the monitored video recorded at the same I frame image position.

Optionally, the file splicing module includes:

a first converting unit, configured to: when the target monitoring video is a non-standard code stream, The image data of the last fourth preset duration of the found part of the surveillance video is converted into binary data;

a second conversion unit, configured to convert the image data of the fifth preset duration of the downloaded video file that is downloaded by the current breakpoint into binary data;

a data determining unit, configured to determine, from the binary data converted by the data of the fifth preset duration, the same binary data as the data converted by the fourth preset duration;

And a first file splicing unit, configured to splicing the video file downloaded by the current breakpoint and the part of the monitored video recorded at the same binary data position.

Optionally, the device further includes:

The download interruption number judging module is configured to determine, according to the breakpoint identifier, whether the number of download interruptions exceeds a preset number before searching for the currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time, wherein The breakpoint identifier corresponds to the number of download interruptions;

Optionally, the downloading instruction further carries device information.

Correspondingly, the device further comprises:

a target monitoring device determining module, configured to determine, according to the device information, a target monitoring device that stores the target monitoring video, before sending the downloading breakpoint time and the ending time to a target monitoring device that stores the target monitoring video .

In a third aspect, the embodiment of the present application further provides an electronic device, which is applicable to a breakpoint transmission of a surveillance video, where the electronic device includes:

a housing, a processor, a memory, a circuit board, and a power supply circuit, wherein the circuit board is disposed inside the space enclosed by the housing, the processor and the memory are disposed on the circuit board; and the power supply circuit is used for each circuit of the electronic device or The device is powered; the memory is for storing executable program code; the processor runs the program corresponding to the executable program code by reading the executable program code stored in the memory for performing the following steps:

Obtaining a download instruction, wherein the download instruction carries a start of a target surveillance video to be downloaded Time and end time;

Determining a download breakpoint time of the target surveillance video according to the partial surveillance video found;

Sending the download breakpoint time and the ending time to the target monitoring device storing the target monitoring video, so that the target monitoring device records the target monitoring video from the download breakpoint time to the end time The video stream is sent to the electronic device;

The video stream is received and saved.

In a fourth aspect, an embodiment of the present application further provides an application, where the application is used to perform a breakpoint retransmission method of the above surveillance video at runtime.

In a fifth aspect, the embodiment of the present application further provides a storage medium, which is used for storing an application, and the application is used to execute a breakpoint continuous transmission method of the above surveillance video during operation.

In this solution, the client first obtains a download instruction, and determines whether there is a breakpoint identifier corresponding to the start time and the end time, and if yes, searches for the currently downloaded part corresponding to the target surveillance video according to the start time. Monitoring the video, and determining a download breakpoint time of the target surveillance video according to the part of the monitored video, and then sending the download breakpoint time and the end time to a target monitoring device storing the target surveillance video, And causing the target monitoring device to send the video code stream of the target surveillance video from the download breakpoint time to the end time to the client, and finally receive and save the video code stream. By adopting this scheme, when the target surveillance video download is interrupted and downloaded again, the resume transmission is resumed from the download breakpoint time, and the downloading time and the traffic volume can be saved without re-downloading from the start time of the target surveillance video.

DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings to be used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present application, and other drawings can be obtained according to the drawings without any creative work for those skilled in the art.

FIG. 1 is a flowchart of a method for continuously transmitting a breakpoint of a surveillance video according to an embodiment of the present application;

2 is a schematic diagram of a file splicing manner corresponding to a video file of a standard code stream according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a file splicing manner corresponding to a video file of a non-standard code stream according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a device for maintaining a breakpoint of a surveillance video according to an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

In order to save the download time and the traffic, the downloading time and the traffic are saved in order to save the downloading of the monitoring video after the downloading of the monitoring video is interrupted. The embodiment of the present application provides a method and a device for stopping the transmission of the monitoring video.

The following is a description of a method for resuming a breakpoint of a surveillance video provided by an embodiment of the present application.

As shown in FIG. 1 , a method for continuously transmitting a breakpoint of a surveillance video is applied to a client, and includes the following steps:

S101, obtaining a download instruction;

The method provided by the embodiment of the present application is applied to a client, and the client can establish a wired or wireless connection with the monitoring device to perform data transmission. The wireless connection may be a connection method such as a WIFI connection or a cellular mobile network (the system may be 3G, 4G, etc.).

The client can obtain the download instruction of the user, and can also obtain the download instruction when the preset download rule is met. Of course, the client can also obtain the download instruction through other existing methods, which is not specifically limited herein, wherein the download The command generally carries the start time and the end time of the target surveillance video to be downloaded.

For example, the user enters the target monitoring video to be downloaded at the client to start at 2016. At 10:10 on September 15th, the end time is 14:30 on September 15th, 2016, then the client can get the start time of the carrier as 10:10 on September 15, 2016, and the end time is 2016. Download instructions at 14:30 on September 15. The client can also obtain the download command when the preset download rule is met. For example, the preset rule can be: download the surveillance video from 8:00 to 10:00 every day at 12 noon, then the client is at 12 noon every day. It is possible to obtain a download instruction that the carrying start time is 8 o'clock on the day and the end time is 10 o'clock on the day.

S102, determining whether there is a breakpoint identifier corresponding to the start time and the end time, and if yes, searching for the currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time;

After the client obtains the above download command, in order to determine whether the target monitoring video to be downloaded is a download interruption recording, it may be determined whether there is a breakpoint identifier corresponding to the start time and the end time carried by the download instruction.

It should be noted that the breakpoint identifier is recorded when an abnormal end occurs during the download of the surveillance video, that is, in the process of downloading the surveillance video, if a download interruption occurs due to human or network reasons, the client You can record the breakpoint ID. Further, if the client determines that there is a breakpoint identifier corresponding to the start time and the end time carried by the download instruction, it indicates that the target surveillance video to be downloaded has been interrupted during the download process, that is, the target to be downloaded. The surveillance video is the download interruption video.

If the client determines that there is no breakpoint identifier corresponding to the start time and the end time carried by the download command, the target monitoring video to be downloaded is not the download interruption video. It can be understood that if the target surveillance video to be downloaded is not the download interruption video, the client can download the target surveillance video to be downloaded from the start time carried by the download instruction.

When the client determines that there is a breakpoint identifier corresponding to the start time and the end time carried by the download command, the client may further search for the currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time. Since a user generally does not download the surveillance video with the same time period, that is, the start time of the target surveillance video is generally different, the client can record the corresponding start time of the surveillance video when downloading a surveillance video. The identification information that is not repeated, such as the default file name, etc., because the identification information is unique and corresponds to the downloaded surveillance video, so that the above information can be found by searching for the identification information corresponding to the start time. The part of the currently monitored part of the surveillance video corresponding to the surveillance video.

In an embodiment of the present application, in order to further ensure that the currently downloaded partial surveillance video corresponding to the target surveillance video is found, the manner of searching for the downloaded partial surveillance video may be:

In some cases, the number of users of the client may be multiple, and multiple users may download the same monitoring video at the beginning of the time. If the same monitoring video at the beginning of the moment is interrupted during the downloading process, the client is based on the starting moment. When searching for the currently downloaded part of the surveillance video corresponding to the target surveillance video, some of the currently downloaded partial surveillance recordings may be found, and the breakpoints of the currently downloaded partial surveillance video of these searches may not be at the target. Monitor the start and end of the recording.

In view of this, when downloading a surveillance video, the client can record the identification information corresponding to the start time and the end time of the surveillance video, such as the default file name, so as to ensure the breakpoint time of the part of the surveillance video that is found. It is between the start time and the end time of the target surveillance video to ensure the accuracy of the search and avoid affecting the subsequent steps. Of course, the client may also associate the breakpoint identifier with the currently downloaded partial surveillance video when the breakpoint identifier is recorded, so that the currently downloaded portion can be found after the breakpoint identifier is determined. It is reasonable to monitor the video.

It should be noted that, in order to avoid repeatedly downloading the same piece of surveillance video in some cases, when the target surveillance video to be downloaded is not the download interruption video, the client may further detect whether there is already a start time carried by the download instruction. The surveillance video corresponding to the end time, if it exists, will not be repeated.

For example, the client may determine whether there is already a monitoring video corresponding to the start time and the end time carried by the download instruction by searching for a default file corresponding to the start time and the end time. It is also possible to determine whether there is already a monitoring video corresponding to the start time and the end time carried by the download instruction by recording the complete download identifier, that is, downloading the target surveillance video corresponding to the download instruction corresponding to the download instruction. When the client can record one with the The complete download identifier corresponding to the target surveillance video, when the client detects the complete download identifier, it indicates that the target surveillance video has been completely downloaded, and there is no need to re-download, further saving download time and traffic.

S103. Determine, according to the part of the monitored video records, the download breakpoint time of the target surveillance video;

After finding the part of the surveillance video, the client can determine the download breakpoint time of the target surveillance video according to the part of the surveillance video that is found.

When the target monitoring video is a standard code stream, the manner of determining the download breakpoint time of the target surveillance video may include:

Determining the last I frame image in the partial surveillance video found;

The timestamp corresponding to the last I picture frame is determined as the download breakpoint time, or the time of the first preset time period before the timestamp corresponding to the last I frame is determined as the download breakpoint time.

The types of the above standard code streams mainly include h.264, h.265, MPEG-4, etc. If the target surveillance video is a standard stream, the client can determine the last I frame in the part of the monitored video that is found. The image, it can be understood that the last I frame image is the one I frame image closest to the tail in the part of the surveillance video. It should be noted that the method for determining the last I frame image in the part of the surveillance video is an image processing method commonly used in the field, and those skilled in the art can perform specific operations according to factors such as the code stream type of the part of the surveillance video. This will not be explained in detail.

After determining the last I frame image, the client may determine the timestamp corresponding to the last I frame image as the download breakpoint time. For example, the timestamp corresponding to the timestamp of the last I-frame image is 9:20:5, 10, 10 milliseconds on September 15, 2016, so the client can place 9:20 on September 15, 2016. 10 milliseconds is determined as the download breakpoint moment.

In order to avoid data loss and ensure the integrity of the target video recording that is finally downloaded, the client may also determine the time of the first preset duration before the time stamp corresponding to the last I frame image as the download breakpoint time, where The first preset duration may be determined by a person skilled in the art according to the type of the code stream of the target monitoring video and the duration of the partial monitoring video, and is not limited herein, for example, may be 3 seconds, 5 seconds, or the like.

When the target monitoring video is a non-standard code stream, the manner of determining the download breakpoint time of the target surveillance video may include:

Determining a video duration of the part of the monitored video that is found, and adding the start time to the video duration;

After finding the above part of the surveillance video, the client can determine the video duration of the part of the surveillance video by any existing method, and then add the start time and the duration of the video, and determine the time calculated by the addition as the download breakpoint. time. For example, the video duration of this part of the surveillance video is 50 minutes, the starting time is 10:10 on September 15, 2016, then the download breakpoint is 11:00 on September 15, 2016.

In order to avoid the data loss, and ensure the integrity of the target video recording that is finally downloaded, the time of the second preset duration before the time calculated by the addition may be determined as the download breakpoint time, wherein the second preset duration may be It is determined by a person skilled in the art according to factors such as the length of the partial surveillance video, and is not specifically limited herein, and may be, for example, 3 seconds, 5 seconds, or the like.

S104. Send the download breakpoint time and the end time to a target monitoring device that stores the target surveillance video, so that the target monitoring device records the target surveillance video from the download breakpoint moment to the The video stream of the end time is sent to the client;

After the client determines the download breakpoint time, the download breakpoint time and the end time may be sent to the target monitoring device storing the target surveillance video, so that the target monitoring device can receive the download breakpoint time and At the end time, the recorded code stream of the target surveillance video from the download breakpoint time to the end time is sent to the client, and the breakpoint transmission of the target surveillance video is realized, instead of restarting from the start time to the The video stream at the end time is sent to the client, saving a lot of download time and traffic.

S105. Receive and save the video stream.

After receiving the video stream sent by the target monitoring device, the client saves the video stream to complete the download of the target surveillance video.

It can be seen that, in the solution provided by the embodiment of the present application, the client first obtains a download instruction, and determines whether there is a breakpoint identifier corresponding to the start time and the end time, and if yes, searches for the target monitor according to the start time. Recording a part of the currently downloaded partial surveillance video corresponding to the video, and determining a download breakpoint time of the target surveillance video according to the found partial surveillance video, and then transmitting the download breakpoint time and the ending time to storing the Target monitoring device of the target monitoring video, so that the target monitoring device sends the video code stream of the target surveillance video from the download breakpoint time to the end time to the client, and finally receives and saves the video Code stream. By adopting this scheme, when the target surveillance video download is interrupted and downloaded again, the resume transmission is resumed from the download breakpoint time, and the downloading time and the traffic volume can be saved without re-downloading from the start time of the target surveillance video.

As an implementation manner of the embodiment of the present application, in order to ensure the integrity and accuracy of the target monitoring video of the final download, and avoid data loss and redundancy, after the end of the resume transmission, the client can find the data. Some of the surveillance videos that have arrived are spliced with the video files downloaded from this resume.

When the target surveillance video is a standard code stream, the method for splicing the partial surveillance video that is found and the video file downloaded by the current resume may include:

As shown in FIG. 2, the client can determine the image data 230 of the last I frame image of the portion of the monitored video 210 that is found. Then, the client may determine, from the image frame data 240 of the third preset duration starting from the download of the downloaded video file 220 at the current breakpoint, the last I frame image of the partial surveillance video 210 that is found above. The image data 230 has the same image data (indicated by the same image data in the figure), and further determines the same number of images in the video file 220 downloaded from this resume. According to the corresponding I frame image.

It should be noted that the third preset duration may be determined by a person skilled in the art according to the searched partial surveillance video 210 and the duration of the video file 220 downloaded by the current resume, the type of the code stream, and the like. It is not specifically limited, and may be, for example, 5 seconds or 6 seconds.

It should be further noted that the manner of determining the image data 230 of the last I frame image and the video file 220 downloaded from the resume of the current breakpoint are determined to be the same as the image data 230 of the last I frame image. The manner of the I frame image corresponding to the image data is the image processing mode adopted in the art, and those skilled in the art can perform the code stream of the downloaded video file 210 and the downloaded video file 220 according to the found partial video recording 210. The type and other factors operate, and will not be specified here.

After determining the image data 230 of the last I frame image and the I frame image corresponding to the same image data of the last I frame image data 230 in the video file 220 downloaded by the current breakpoint, The client can splicing the downloaded video file 220 and the found partial surveillance video 210 at the position 250 of the same I-frame image to obtain the spliced partial surveillance video 260.

When the target monitoring video is a non-standard code stream, the method for splicing the part of the monitored video and the video file downloaded by the current resume may include:

As shown in FIG. 3, the client can convert the image data of the last fourth preset duration of the found partial surveillance video 310 into binary data 330. Then, the client can convert the image data of the fifth preset duration from the start of the downloaded video file 320 to the binary data 340.

It should be noted that the fourth preset duration and the fifth preset duration may be determined by a person skilled in the art according to factors such as the partial surveillance video 310 found and the duration of the video file 320 downloaded by the current breakpoint. The fourth preset duration may be 2 seconds or the like, and the fifth preset duration may be 5 seconds or 6 seconds, and the like.

It should be further noted that the foregoing method for converting image data into binary data is a data processing method adopted by the field, and those skilled in the art can perform the video downloaded according to the partial monitoring video 310 and the downloaded video of the current breakpoint. The image data of the file 320 is operated and the like, and will not be specifically described herein.

After the binary data 340 of the data conversion of the fifth preset duration and the binary data 330 of the data of the fourth preset duration are determined, the client can convert the binary data converted from the data 340 of the fifth preset duration. Determining the same binary data (in the figure represented by the same binary data) as the data conversion binary data 330 of the fourth preset duration, and continuing to download the downloaded video file 320 and the found partial monitoring The video 310 is spliced at the same position 350 of the binary data to obtain a spliced partial surveillance video 360.

Through the above file splicing method, multiple video files downloaded by the resume can be spliced into one video file to avoid data loss and redundancy. At the same time, if the abnormal end occurs again when the breakpoint is resumed, the next time the resume is transmitted to the surveillance video, the breakpoint time can be determined more accurately according to the spliced part of the downloaded surveillance video.

As an implementation of the embodiment of the present application, before the step of searching for the currently downloaded partial surveillance video corresponding to the target surveillance video according to the foregoing start time, the method may further include:

Determining, according to the breakpoint identifier, whether the number of download interruptions exceeds a preset number of times;

In order to facilitate the recording of the number of download interruptions of the surveillance video, the client can record the breakpoint identifier corresponding to the number of download interruptions when the breakpoint identifier is recorded, so that the number of download interruptions can be determined by the breakpoint identifier, thereby determining the number of download interruptions. Whether it exceeds the preset number of times. It should be noted that the preset number of times may be determined by a person skilled in the art according to factors such as network conditions, for example, may be 10 times, etc., and is not specifically limited herein.

When it is judged that the number of download interruptions exceeds the preset number, it indicates that the number of download interruptions is many, and the download interruption is frequent. It is likely that the download is interrupted due to poor network conditions, so the client can temporarily stop the resume transmission and avoid The download time and traffic are wasted due to frequent attempts to connect to the target monitoring device for resume transmission.

When it is determined that the number of download interruptions does not exceed the preset number of times, the number of download interruptions is small, and the possibility of download interruption due to poor network conditions is small, and the client can continue to perform the search for the target surveillance video according to the above start time. Corresponding to the currently downloaded part of the monitoring video recording step, resume the breakpoint.

As an implementation manner of the embodiment of the present application, since the monitoring device may be multiple, the download instruction may further carry the device information, in order to conveniently determine the target monitoring device.

Correspondingly, before the step of sending the downloading breakpoint and ending time to the target monitoring device for storing the target monitoring video, the method may further include:

Determining, by the device information, the target monitoring device that stores the target surveillance video.

After determining the target monitoring device according to the device information, the client may establish a connection with the target monitoring device, and send the downloading breakpoint time and ending time to the target monitoring device. The device information generally includes an IP address, port information, a user name, and password information corresponding to the target monitoring device.

Corresponding to the above method embodiment, the embodiment of the present application further provides a device for maintaining a video recording breakpoint. The following is a description of a device for monitoring video recording.

As shown in FIG. 4, a breakpoint continuous transmission device for monitoring video is applied to a client, and the device includes:

The download instruction obtaining module 410 is configured to obtain a download instruction;

The download instruction carries a start time and an end time of the target surveillance video to be downloaded.

The breakpoint identifier determining module 420 is configured to determine whether there is a breakpoint identifier corresponding to the start time and the end time, and if yes, search for the target surveillance video according to the start time Some of the surveillance videos that have been downloaded;

The breakpoint identifier is recorded when the monitoring video is abnormally ended during the downloading process.

The download breakpoint determination module 430 is configured to determine a download breakpoint moment of the target surveillance video according to the found partial surveillance video;

Downloading a breakpoint time sending module 440, configured to send the download breakpoint time and the end time to a target monitoring device that stores the target monitoring video, so that the target monitoring device selects the target monitoring video Transmitting a video code stream from the download breakpoint moment to the end moment to the client;

The video stream receiving module 450 is configured to receive and save the video stream.

As an implementation of the embodiment of the present application, the breakpoint identifier determining module 420 may include:

The search unit (not shown) has been downloaded for searching for the currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time and the end time.

As an implementation manner of the embodiment of the present application, the download breakpoint time determination module 430 may include:

An image determining unit (not shown), configured to determine a last I frame image of the part of the monitored video records when the target monitoring video is a standard code stream;

a first download breakpoint time determining unit (not shown) for determining a timestamp corresponding to the last I image as a download breakpoint time, or a time corresponding to the last I image The time at which the first preset duration is before the stamp is determined as the download breakpoint moment.

a duration determining unit (not shown), configured to determine a video duration of the part of the monitored video records when the target monitoring video is a non-standard stream, and add the starting time to the video duration Calculation

a second download breakpoint time determining unit (not shown) for determining the time obtained by the addition calculation as the download breakpoint time, or determining the time of the second preset duration before the time calculated by the addition as the download Breakpoint moment.

As an implementation manner of the embodiment of the present application, the device may further include:

The file splicing module (not shown) is configured to splicing the found partial monitoring video with the downloaded video file of the current breakpoint after the end of the resume.

As an implementation manner of the embodiment of the present application, the file splicing module may include:

a first image determining unit (not shown), configured to determine image data of a last I frame image of the found partial monitoring video when the target monitoring video is a standard code stream;

a second image determining unit (not shown) for determining the portion to be found from the image frame of the third preset duration starting from the download of the downloaded video file by the current breakpoint The same I frame image of the image data of the last I frame image of the surveillance video;

a first file splicing unit (not shown), configured to perform the current video file downloaded by the current resume and the partial video surveillance video at the same I frame image position splice.

a first conversion unit (not shown), configured to convert image data of the last fourth preset duration of the found partial surveillance video into binary when the target surveillance video is a non-standard code stream Data

a second conversion unit (not shown) for converting the image data of the fifth preset duration of the downloaded video file of the current breakpoint conversion into binary data;

a data determining unit (not shown), configured to determine, from the binary data converted by the data of the fifth preset duration, binary data that is the same as the binary data of the fourth preset duration data conversion;

a first file splicing unit (not shown), configured to splicing the downloaded video file of the current breakpoint and the found partial monitoring video at the same binary data position .

As an implementation manner of the embodiment of the present application, the device further includes:

The download interruption number judging module (not shown) may be configured to determine the number of download interruptions according to the breakpoint identifier before searching for the currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time. Whether the preset number of times exceeds, wherein the breakpoint identifier corresponds to the number of download interruptions;

As an implementation manner of the embodiment of the present application, the downloading instruction may further carry device information.

Correspondingly, the device may further comprise:

a target monitoring device determining module (not shown), configured to determine, according to the device information, before storing the downloading breakpoint time and the ending time to storing the target monitoring device of the target monitoring video Target monitoring device for target surveillance video.

In addition, according to an embodiment of the present application, an electronic device is further provided, which is suitable for monitoring resume transmission of a video recording, and the electronic device includes:

a housing, a processor, a memory, a circuit board, and a power supply circuit, wherein the circuit board is disposed inside the space enclosed by the housing, the processor and the memory are disposed on the circuit board; and the power supply circuit is used for each circuit of the electronic device or The device is powered; the memory is for storing executable program code; the processor runs the program corresponding to the executable program code by reading executable program code stored in the memory, Used to perform the following steps:

The video stream is received and saved.

In this embodiment, the electronic device may exist in various forms including, but not limited to:

(1) Mobile communication devices: These devices are characterized by mobile communication functions and are mainly aimed at providing voice and data communication. Such terminals include: smart phones (such as iPhone), multimedia phones, functional phones, and low-end phones.

(2) Ultra-mobile personal computer equipment: This type of equipment belongs to the category of personal computers, has computing and processing functions, and generally has mobile Internet access. Such terminals include: PDAs, MIDs, and UMPC devices, such as the iPad.

(3) Portable entertainment devices: These devices can display and play multimedia content. Such devices include: audio, video players (such as iPod), handheld game consoles, e-books, and smart toys and portable car navigation devices.

(4) Server: A device that provides computing services. The server consists of a processor , a hard disk , a memory , a system bus, etc. The server is similar to a general-purpose computer architecture, but because of the need to provide highly reliable services, processing power and stability High reliability in terms of reliability, security, scalability, and manageability.

(5) Other electronic devices with data interaction functions.

It can be seen that, in this embodiment, the electronic device can resume the transmission from the download breakpoint when the target monitoring video download is interrupted, and does not need to re-download from the start time of the target surveillance video, which can save a large amount. Download time and traffic.

In an implementation manner of the present application, the processor runs a program corresponding to the executable program code by reading executable program code stored in the memory, and the performing the searching for the target according to the start time The steps of monitoring the video recording corresponding to the currently downloaded part of the surveillance video may include:

In an implementation manner of the present application, the processor runs a program corresponding to the executable program code by reading executable program code stored in the memory, and when the target monitoring video is a standard code stream, the executed The determining, according to the part of the monitoring video that is found, the step of determining a download breakpoint of the target surveillance video, may include:

Determining the last I frame image in the partial surveillance video found;

In an implementation manner of the present application, the processor runs a program corresponding to the executable program code by reading executable program code stored in the memory, when the target monitoring video is a non-standard code stream, And determining, according to the part of the monitoring video that is found, the step of downloading the breakpoint of the target surveillance video, which may include:

In an implementation of the present application, the processor executes a program corresponding to the executable program code by reading the executable program code stored in the memory, and the executed method may further include:

In an implementation manner of the present application, the processor runs a program corresponding to the executable program code by reading executable program code stored in the memory, and when the target monitoring video is a standard code stream, the executed The step of splicing the part of the monitored video recording with the video file downloaded by the current breakpoint may include:

In an implementation manner of the present application, the processor runs a program corresponding to the executable program code by reading executable program code stored in the memory, and when the target monitoring video is a non-standard code stream, is executed. The step of splicing the part of the monitored video recording with the downloaded video file of the current resume download may include:

In an implementation manner of the present application, the processor runs a program corresponding to the executable program code by reading executable program code stored in the memory, and the performing the searching for the target according to the start time The step of monitoring the video corresponding to the currently downloaded part of the surveillance video The method may further include:

In an implementation manner of the application, the downloading instruction may further carry device information.

Correspondingly, the processor runs a program corresponding to the executable program code by reading executable program code stored in the memory, and the executing the downloading breakpoint time and the ending time to store the target Before the step of monitoring the target monitoring device of the video, the method may further include:

For the electronic device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

The application further provides an application program for performing the monitoring video breakpoint retransmission method provided by the embodiment of the present application at runtime. Among them, the monitoring video breakpoint resume transmission method includes:

Sending the download breakpoint time and the ending time to the target monitoring device storing the target monitoring video, so that the target monitoring device records the target monitoring video from the download breakpoint time to the end time The video stream is sent to the client;

The video stream is received and saved.

It can be seen that, by using the application program provided by the embodiment of the present application, when the target monitoring video download is interrupted and then downloaded again, the breakpoint is resumed from the time of downloading the breakpoint, and it is not necessary to re-start from the start time of the target surveillance video. Downloads can save a lot of download time and traffic.

In an implementation manner of the present application, the step of searching for the currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time may include:

In an implementation manner of the present application, when the target monitoring video is a standard code stream, the step of determining a download breakpoint moment of the target surveillance video according to the part of the monitored video recording may include:

Determining the last I frame image in the partial surveillance video found;

In an implementation manner of the present application, when the target monitoring video is a non-standard code stream, the step of determining a download breakpoint time of the target surveillance video according to the part of the monitored video records that is found may include :

In an implementation manner of the application, the method further includes:

In an implementation manner of the present application, when the target monitoring video is a standard code stream, the part of the monitored video recording and the video file downloaded by the current breakpoint are filed. The step of splicing may include:

In an implementation manner of the present application, when the target monitoring video is a non-standard code stream, the part of the monitored video recording is spliced with the video file downloaded by the current resume. The steps can include:

In an implementation manner of the present application, before the step of searching for the currently downloaded partial surveillance video corresponding to the target surveillance video, the method may further include:

Correspondingly, the sending the download breakpoint moment and the ending moment to storing the target monitor Before the step of controlling the target monitoring device of the video, the method may further include:

For the application embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

In addition, according to an embodiment of the present application, a storage medium is further provided, where the storage medium is used to execute the monitoring video breakpoint retransmission method provided by the embodiment of the present application at runtime. Among them, the monitoring video breakpoint resume transmission method includes:

The video stream is received and saved.

Determining the last I frame image in the partial surveillance video found;

In an implementation manner of the application, the method may further include:

In an implementation manner of the present application, when the target monitoring video is a standard code stream, the part of the monitored video recording is spliced with the video file downloaded by the current resume. Steps can include:

In an implementation manner of the present application, when the target monitoring video is a non-standard code stream, The step of splicing the part of the monitored video recorded and the video file downloaded by the resume of the current breakpoint may include:

Correspondingly, before the step of sending the downloading breakpoint time and the ending time to the target monitoring device storing the target monitoring video, the method may further include:

For the storage medium embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

It should be noted that, in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply such entities or operations. There is any such actual relationship or order between them. Moreover, the term "includes", "Include" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or device that comprises a plurality of elements includes not only those elements but also other elements not specifically listed, or Include elements that are inherent to such a process, method, item, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The various embodiments in the present specification are described in a related manner, and the same or similar parts between the various embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

The above description is only the preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application are included in the scope of the present application.

Claims

A method for resuming transmission of a surveillance video, which is characterized in that it is applied to a client, and the method includes:

Obtaining a download instruction, where the download instruction carries a start time and an end time of the target surveillance video to be downloaded;

Determining whether there is a breakpoint identifier corresponding to the start time and the end time, and if yes, searching for a currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time, wherein the breakpoint identifier is : Recorded during the abnormal end of the monitoring video download process;

Determining a download breakpoint time of the target surveillance video according to the partial surveillance video found;

Sending the download breakpoint time and the ending time to the target monitoring device storing the target monitoring video, so that the target monitoring device records the target monitoring video from the download breakpoint time to the end time The video stream is sent to the client;

The video stream is received and saved.
The method according to claim 1, wherein the step of searching for the currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time comprises:

And searching for the currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time and the end time.
The method according to claim 1, wherein when the target surveillance video is a standard code stream, the step of determining a download breakpoint time of the target surveillance video according to the found partial surveillance video, include:

Determining the last I frame image in the partial surveillance video found;

The timestamp corresponding to the last I image is determined as the download breakpoint time, or the time of the first preset duration before the timestamp corresponding to the last I image is determined as the download breakpoint time.
The method according to claim 1, wherein when the target surveillance video is a non-standard code stream, the step of determining a download breakpoint time of the target surveillance video according to the found partial surveillance video , including:

Determining a video duration of the part of the monitored video that is found, and adding the start time to the video duration;

The time obtained by the addition calculation is determined as the download breakpoint time, or the time of the second preset time before the time calculated by the addition is determined as the download breakpoint time.
The method of claim 1 wherein the method further comprises:

After the end of the resume of the breakpoint, the part of the monitored video recorded is merged with the video file downloaded by the resume of the breakpoint.
The method according to claim 5, wherein when the target surveillance video is a standard code stream, the performing part of the monitored video recording and the video file downloaded by the current breakpoint transmission are performed. The steps of file splicing include:

Determining image data of the last I frame image of the found partial surveillance video;

Determining the same image data as the image data of the last I frame image of the found partial surveillance video from the image frame of the third preset duration starting from the download of the downloaded video file at the current breakpoint Frame image

The video file downloaded by the current breakpoint is spliced with the found partial surveillance video at the same I frame image position.
The method according to claim 5, wherein when the target surveillance video is a non-standard code stream, the partial surveillance video recorded and the video file downloaded by the current breakpoint are continuously transmitted. The steps of file splicing include:

Converting image data of the last fourth preset duration of the found partial monitoring video into binary data;

Converting the image data of the fifth preset duration of the video file downloaded by the current resume to the binary data;

Determining, from the binary data converted by the data of the fifth preset duration, the same binary data as the data converted by the fourth preset duration;

And downloading the video file downloaded by the current breakpoint and the part of the monitored video recorded. Splicing is performed at the same location of the binary data.
The method according to any one of claims 1 to 7, wherein the method further comprises: before the step of searching for the currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time, the method further comprises :

Determining, according to the breakpoint identifier, whether the number of download interruptions exceeds a preset number of times, wherein the breakpoint identifier corresponds to the number of download interruptions;

If no, the step of searching for the currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time is continued.
The method of claim 8 wherein said download instruction further carries device information.

Correspondingly, before the step of sending the downloading breakpoint time and the ending time to the target monitoring device storing the target monitoring video, the method further includes:

Determining, according to the device information, a target monitoring device that stores the target surveillance video.
A breakpoint continuous transmission device for monitoring video, which is characterized in that it is applied to a client, and the device includes:

a download instruction module, configured to obtain a download instruction, where the download instruction carries a start time and an end time of the target surveillance video to be downloaded;

a breakpoint identification determining module, configured to determine whether there is a breakpoint identifier corresponding to the start time and the end time, and if yes, searching for a currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time, The breakpoint identifier is: recorded when the monitoring video downloading process ends abnormally;

Downloading a breakpoint time determination module, configured to determine a download breakpoint moment of the target surveillance video according to the part of the monitored video recorded;

Downloading a breakpoint time sending module, configured to send the download breakpoint time, the end time to a target monitoring device that stores the target surveillance video, so that the target monitoring device records the target surveillance video from the Transmitting a video stream from the breakpoint moment to the end moment to the client;

The video stream receiving module is configured to receive and save the video stream.
The device according to claim 10, wherein the breakpoint identification determining module comprises:

The search unit has been downloaded to search for the currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time and the end time.
The device according to claim 10, wherein the download breakpoint time determination module comprises:

An image determining unit, configured to determine a last I frame image of the part of the monitored video records when the target monitoring video is a standard code stream;

a first download breakpoint time determining unit, configured to determine a timestamp corresponding to the last I image as a download breakpoint time, or a first preset duration before a timestamp corresponding to the last I image The moment is determined as the download breakpoint moment.
The device according to claim 10, wherein the download breakpoint time determination module comprises:

a duration determining unit, configured to determine a video duration of the part of the monitored video recording when the target monitoring video is a non-standard code stream, and add the starting time to the video duration;

The second download breakpoint time determining unit is configured to determine the time obtained by the addition calculation as the download breakpoint time, or determine the time of the second preset duration before the time calculated by the addition as the download breakpoint time.
The device of claim 10, wherein the device further comprises:

The file splicing module is configured to splicing the part of the monitored video records and the video files downloaded by the resume of the current breakpoint after the end of the resume of the breakpoint.
The device of claim 14, wherein the file splicing module comprises:

a first image determining unit, configured to: when the target monitoring video is a standard code stream, determine image data of a last I frame image of the found partial monitoring video;

a second image determining unit, configured to determine, from an image frame of a third preset duration from the beginning of the downloaded video file of the current breakpoint, the last frame of the monitored video with the found portion The same I frame image as the image data of the I frame image;

And a first file splicing unit, configured to splicing the video file downloaded by the current breakpoint and the part of the monitored video recorded at the same I frame image position.
The device of claim 14, wherein the file splicing module comprises:

a first converting unit, configured to convert image data of the last fourth preset duration of the found partial monitoring video into binary data when the target monitoring video is a non-standard code stream;

a second conversion unit, configured to convert the image data of the fifth preset duration of the downloaded video file that is downloaded by the current breakpoint into binary data;

a data determining unit, configured to determine, from the binary data converted by the data of the fifth preset duration, the same binary data as the data converted by the fourth preset duration;

And a first file splicing unit, configured to splicing the video file downloaded by the current breakpoint and the part of the monitored video recorded at the same binary data position.
The device of claim 10, wherein the device further comprises:

The download interruption number judging module is configured to determine, according to the breakpoint identifier, whether the number of download interruptions exceeds a preset number before searching for the currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time, wherein The breakpoint identifier corresponds to the number of download interruptions;

If no, the step of searching for the currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time is continued.
The device according to any one of claims 10-17, wherein the download instruction further carries device information.

Correspondingly, the device further comprises:

a target monitoring device determining module, configured to determine, according to the device information, a target monitoring device that stores the target monitoring video, before sending the downloading breakpoint time and the ending time to a target monitoring device that stores the target monitoring video .
An electronic device, characterized in that it is suitable for resuming transmission of a video recording, the electronic device comprising:

a housing, a processor, a memory, a circuit board, and a power supply circuit, wherein the circuit board is disposed inside the space enclosed by the housing, the processor and the memory are disposed on the circuit board; and the power supply circuit is used for each circuit of the electronic device or The device is powered; the memory is for storing executable program code; the processor runs the program corresponding to the executable program code by reading the executable program code stored in the memory for performing the following steps:

Obtaining a download instruction, where the download instruction carries a start time and an end time of the target surveillance video to be downloaded;

Determining whether there is a breakpoint identifier corresponding to the start time and the end time, and if yes, searching for a currently downloaded partial surveillance video corresponding to the target surveillance video according to the start time, wherein the breakpoint identifier is : Recorded during the abnormal end of the monitoring video download process;

Determining a download breakpoint time of the target surveillance video according to the partial surveillance video found;

Sending the download breakpoint time and the ending time to the target monitoring device storing the target monitoring video, so that the target monitoring device records the target monitoring video from the download breakpoint time to the end time The video stream is sent to the electronic device;

The video stream is received and saved.
An application program for performing a breakpoint retransmission method for monitoring video according to any one of claims 1-9 at runtime.
A storage medium for storing an application, the application being used at runtime to perform a breakpoint retransmission method for monitoring video according to any one of claims 1-9.