CN113301388A - Video stream processing system, device and method - Google Patents
Video stream processing system, device and method Download PDFInfo
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- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234309—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
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Abstract
The embodiment of the invention provides a video stream processing system, equipment and a method, relating to the technical field of video monitoring. A video stream request end sends a video stream acquisition request to video stream processing equipment; the video stream processing equipment sends the network camera identification of at least one target network camera to a target network video recorder according to the network video recorder identification; the target network video recorder sends the video stream collected by at least one target network camera to the video stream processing equipment according to the network camera identification; the video stream processing equipment converts the video stream collected by at least one target network camera from a current first compression coding format into a second compression coding format respectively to obtain at least one converted video stream and sends the at least one converted video stream to a video stream request end; and the video stream request end plays the converted at least one path of video stream. Thus, the number of video images that can be viewed by the user at the same time can be increased.
Description
Technical Field
The present invention relates to the field of video monitoring technologies, and in particular, to a video stream processing system, device, and method.
Background
With the rapid development of Network technology, an architecture based on IPC (IP Camera), Network Video Recorder (NVR), and client is also widely applied in the technical field of Video monitoring.
In the related art, the NVR may acquire and store the IPC-collected video stream. The user can send a video stream acquisition request to the NVR through the client, and after receiving the video stream acquisition request, the NVR can send a target video stream indicated by the video stream acquisition request to the client. Accordingly, the client may receive the target video stream and display the target video stream, and the user may browse the corresponding video image in the client.
However, in the case of low network bandwidth, the number of video streams that can be received and processed by the client side in parallel is small, which reduces the number of video images that can be viewed by the user at the same time.
Disclosure of Invention
The embodiment of the invention aims to provide a video stream processing system, a device and a method, which are used for increasing the number of video images which can be browsed by a user at the same time. The specific technical scheme is as follows:
in a first aspect, to achieve the above object, an embodiment of the present application discloses a video stream processing system, including: the system comprises a video stream request terminal, a target network video recorder, a video stream processing device and at least one target network camera; the video stream processing equipment is respectively connected with the video stream request terminal and the target network video recorder; the target network video recorder is also connected with the at least one target network video camera, wherein:
the video stream request terminal is used for sending a video stream acquisition request to the video stream processing equipment; the video stream acquisition request carries the network video recorder identification of the target network video recorder and the network camera identification of the at least one target network camera;
the video stream processing equipment is used for sending the network camera identification of the at least one target network camera to the target network video recorder according to the network video recorder identification;
the target network video recorder is used for sending the video stream collected by the at least one target network camera to the video stream processing equipment according to the network camera identification;
the video stream processing device is further configured to convert a video stream acquired by at least one target network camera from a current first compression coding format to a second compression coding format, obtain at least one converted video stream, and send the at least one converted video stream to the video stream request end; wherein the compression ratio of the second compression encoding format is higher than the compression ratio of the first compression encoding format;
and the video stream request end is also used for playing the converted at least one path of video stream.
Optionally, the video stream processing apparatus includes: an NVS (Network Video Service) mainboard and a device access mainboard; the NVS mainboard is respectively connected with the video stream request end and the equipment access mainboard; the equipment access mainboard is also connected with the target network video recorder;
the NVS mainboard is used for receiving the video stream acquisition request sent by the video stream request terminal and forwarding the video stream acquisition request to the equipment access mainboard;
the device access mainboard is used for sending the network camera identification of the at least one target network camera to the target network video recorder, receiving the video stream which is sent by the target network video recorder and collected by the at least one target network camera, and sending the video stream which is collected by the at least one target network camera to the NVS mainboard when the video stream acquisition request is received;
the NVS motherboard is further configured to convert the video stream acquired by the at least one target network camera from a current first compression coding format to a second compression coding format, obtain at least one converted video stream, and send the at least one converted video stream to the video stream request end.
Optionally, the device is accessed to a motherboard, and is specifically configured to establish, with the target network video recorder, a video stream acquisition channel corresponding to each network camera identifier respectively;
sending the network camera identification to the target network video recorder through a video stream acquisition channel corresponding to each network camera identification;
the target network video recorder is specifically configured to send the video stream acquired by the target network camera corresponding to the network camera identifier to the device access motherboard through the video stream acquisition channel corresponding to the network camera identifier.
Optionally, the device is connected to the motherboard, and is further configured to disconnect a video stream acquisition channel corresponding to each network camera identifier after acquiring a video stream acquired by a target network camera corresponding to each network camera identifier.
Optionally, the video stream request end is further configured to send a connection request for the target network video recorder to the NVS motherboard; the connection request carries a protocol identifier of a communication protocol supported by the target network video recorder;
the NVS mainboard is further used for receiving and forwarding the connection request to the equipment access mainboard;
the equipment access mainboard is also used for receiving the connection request and establishing communication connection with the target network video recorder based on a target communication protocol corresponding to the protocol identifier;
wherein the video stream acquisition request is sent by the video stream request end based on RTSP (Real Time Streaming Protocol); the connection request is sent by the video stream request base on a REST (Representational State Transfer) protocol.
In order to achieve the above object, an embodiment of the present application discloses a video stream processing apparatus, including: network video service NVS mainboard and equipment access mainboard, wherein:
the NVS mainboard is used for receiving a video stream acquisition request sent by a video stream request end; the video stream acquisition request carries an identification of a network video recorder and at least one identification of a network camera; forwarding the video stream acquisition request to the equipment access main board;
the device access mainboard is used for sending the at least one network camera identifier to a target network video recorder corresponding to the network video recorder identifier when receiving the video stream acquisition request, so that the target network video recorder accesses the mainboard to the device and sends video streams acquired by the target network cameras corresponding to the at least one network camera identifier; forwarding a video stream collected by at least one target network camera to the NVS mainboard;
the NVS mainboard is further used for converting the video stream collected by the at least one target network camera from the current first compression coding format to a second compression coding format respectively to obtain at least one converted video stream; wherein the compression ratio of the second compression encoding format is higher than the compression ratio of the first compression encoding format; and sending the converted at least one video stream to the video stream request end so that the video stream request end plays the converted at least one video stream.
Optionally, the device is accessed to a motherboard, and is specifically configured to establish, with the target network video recorder, a video stream acquisition channel corresponding to each network camera identifier respectively;
and sending the network camera identification to the target network video recorder through the video stream acquisition channel corresponding to each network camera identification so that the target network video recorder sends the video stream acquired by the target network camera corresponding to the network camera identification to the equipment access main board through the video stream acquisition channel corresponding to the network camera identification.
Optionally, the device is connected to the motherboard, and is further configured to disconnect a video stream acquisition channel corresponding to each network camera identifier after acquiring a video stream acquired by a target network camera corresponding to each network camera identifier.
Optionally, the NVS motherboard is further configured to receive a connection request, which is sent by the video stream request end and is for the target network video recorder; the connection request carries a protocol identifier of a communication protocol supported by the target network video recorder; forwarding the connection request to the equipment access mainboard;
the equipment is accessed to the mainboard and is also used for establishing communication connection with the target network video recorder based on the target communication protocol corresponding to the protocol identification;
the video stream acquisition request is sent by the video stream request end based on a real-time streaming protocol (RTSP); the connection request is sent by the video stream request end based on a representational state transfer (REST) protocol.
In order to achieve the above object, an embodiment of the present application discloses a video stream processing method, which is applied to a video stream processing device, and includes:
receiving a video stream acquisition request sent by a video stream request end; the video stream acquisition request carries an identification of a network video recorder and at least one identification of a network camera;
sending the at least one network camera identifier to a target network video recorder corresponding to the network video recorder identifier, so that the target network video recorder sends a video stream acquired by a target network camera corresponding to the at least one network camera identifier to the video stream processing device;
respectively converting the video stream collected by at least one target network camera from a current first compression coding format into a second compression coding format to obtain at least one converted video stream; wherein the compression ratio of the second compression encoding format is higher than the compression ratio of the first compression encoding format;
and sending the converted at least one video stream to the video stream request end so that the video stream request end plays the converted at least one video stream.
Optionally, the sending, to the target network video recorder corresponding to the network video recorder identifier, the at least one network camera identifier so that the target network video recorder sends, to the video stream processing device, a video stream acquired by a target network camera corresponding to the at least one network camera identifier, includes:
respectively establishing a video stream acquisition channel corresponding to each network camera identifier with the target network video recorder;
and sending the network camera identification to the target network video recorder through the video stream acquisition channel corresponding to each network camera identification so that the target network video recorder sends the video stream acquired by the target network camera corresponding to the network camera identification to the video stream processing equipment through the video stream acquisition channel corresponding to the network camera identification.
Optionally, the method further includes:
and after the video stream acquired by the target network camera corresponding to each network camera identifier is acquired, disconnecting the video stream acquisition channel corresponding to the network camera identifier.
Optionally, before receiving a video stream acquisition request sent by a video stream request end, the method further includes:
receiving a connection request aiming at the target network video recorder, which is sent by the video stream request terminal; the connection request carries a protocol identifier of a communication protocol supported by the target network video recorder;
establishing communication connection with the target network video recorder based on a target communication protocol corresponding to the protocol identifier;
the video stream acquisition request is sent by the video stream request end based on a real-time streaming protocol (RTSP); the connection request is sent by the video stream request end based on a representational state transfer (REST) protocol.
In another aspect of this application, in order to achieve the above object, this application embodiment further discloses a video stream processing device, where the video stream processing device includes a processor, a communication interface, a memory, and a communication bus, where the processor, the communication interface, and the memory complete communication with each other through the communication bus;
the memory is used for storing a computer program;
the processor is configured to implement the video stream processing method according to any one of the above descriptions when executing the program stored in the memory.
In yet another aspect of this embodiment, a computer-readable storage medium is further provided, in which a computer program is stored, and the computer program, when executed by a processor, implements any of the video stream processing methods described above.
Embodiments of the present invention further provide a computer program product containing instructions, which when run on a computer, cause the computer to execute any of the above-mentioned video stream processing methods.
The embodiment of the invention has the following beneficial effects:
the video stream processing system provided by the embodiment of the invention comprises: the system comprises a video stream request terminal, a target network video recorder, a video stream processing device and at least one target network camera. The video stream processing equipment is respectively connected with the video stream request terminal and the target network video recorder; the target network video recorder is respectively connected with at least one target network camera and the video stream processing equipment. The video stream request terminal is used for sending a video stream acquisition request to the video stream processing equipment; the video stream acquisition request carries a network video recorder identifier of a target network video recorder and a network camera identifier of at least one target network camera; the video stream processing equipment is used for sending the network camera identification of at least one target network camera to the target network video recorder according to the network video recorder identification; the target network video recorder is used for sending the video stream collected by at least one target network camera to the video stream processing equipment according to the network camera identification; the video stream processing device is further configured to convert the video stream acquired by the at least one target network camera from a current first compression coding format to a second compression coding format, obtain at least one converted video stream, and send the at least one converted video stream to the video stream request end; wherein the compression ratio of the second compression encoding format is higher than that of the first compression encoding format; and the video stream request end is also used for playing the converted at least one path of video stream.
Based on the system, the multi-channel video stream can be transcoded simultaneously, the video stream is converted into the second compression coding format with higher compression ratio, and the bandwidth resource occupied by the video stream can be reduced, so that the number of the video streams which are received and processed by the video stream request end in parallel can be increased, and the number of the video images which can be browsed by a user simultaneously can be increased.
Of course, not all of the advantages described above need to be achieved at the same time in the practice of any one product or method of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained by using the drawings without creative efforts.
Fig. 1 is a block diagram of a video stream processing system according to an embodiment of the present invention;
fig. 2 is a block diagram of another video stream processing system according to an embodiment of the present invention;
fig. 3 is a block diagram of a video stream processing apparatus according to an embodiment of the present invention;
fig. 4 is a flowchart of a video stream processing method according to an embodiment of the present invention;
fig. 5 is a flowchart of another video stream processing method according to an embodiment of the present invention;
fig. 6 is a flowchart of another video stream processing method according to an embodiment of the present invention;
fig. 7 is a signaling interaction diagram of a video stream processing method according to an embodiment of the present invention;
fig. 8 is a block diagram of another video stream processing apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention are within the scope of the present invention.
In the related art, under the condition of low network bandwidth, the number of video streams that can be received in parallel by a video stream request end is small, which reduces the number of video images that can be browsed by a user at the same time.
In order to solve the above problem, an embodiment of the present invention provides a video stream processing system, and referring to fig. 1, fig. 1 is a block diagram of a video stream processing system according to an embodiment of the present invention, where the video stream processing system may include: a video stream request terminal 101, a target network video recorder 102, a video stream processing device 103 and at least one target network camera 104. In fig. 1, the target network camera 104 includes a first target network camera 1041, a second target network camera 1042, and a third target network camera 1043, which is not limited to this.
In addition, the video stream processing system may also include other webcams than the target webcam 104.
The video stream processing device 103 is connected to the video stream requesting terminal 101 and the target network video recorder 102, respectively. The target network video recorder 102 is also connected to at least one target network camera 104.
The video stream request terminal 101 is configured to send a video stream acquisition request to the video stream processing apparatus 103.
The video stream acquisition request carries the network video recorder identifier of the target network video recorder 102 and the network camera identifier of the at least one target network camera 104.
And the video stream processing device 103 is used for sending the network camera identification of at least one target network camera 104 to the target network video recorder 102 according to the network video recorder identification.
And the target network video recorder 102 is used for sending the video stream collected by at least one target network camera to the video stream processing equipment 103 according to the network camera identification.
The video stream processing device 103 is further configured to convert the video stream acquired by the at least one target network camera 104 from the current first compression coding format to the second compression coding format, obtain at least one converted video stream, and send the at least one converted video stream to the video stream request end 101.
Wherein the compression ratio of the second compression encoding format is higher than that of the first compression encoding format.
The video stream request end 101 is further configured to play the converted at least one video stream.
The video stream processing system provided by the embodiment of the invention can transcode a plurality of paths of video streams simultaneously through the video stream processing equipment, convert the video streams into the second compression coding format with higher compression ratio, and reduce the bandwidth resources occupied by the video streams, so that the number of the video streams received by the video stream request end in parallel can be increased, and the number of the video images which can be browsed by a user simultaneously can be increased.
In one embodiment, the video streaming client may be a device that the user logs on to view video images. For example, the video stream requesting end may be a central management PC (Personal Computer) server, configured to acquire a video stream captured by a webcam deployed in a monitoring scene and play the video stream for a user to browse.
In one embodiment, the target network video recorder can be connected with a plurality of network cameras and can be in data communication with the network cameras. For example, 16 network cameras can be added to the target network video recorder, or 32 network cameras can be added to the target network video recorder, so that the target network video recorder and each added network camera can perform data communication. Specifically, the number of added network cameras can be determined based on the self-configuration and service requirements of the target network video recorder.
Each network camera can acquire the video stream corresponding to the monitoring scene and send the video stream to the target network video recorder, and the target network video recorder can store the video stream acquired by each network camera.
The network video recorder identification may be an IP (Internet Protocol) address of the network video recorder. Each network camera connected with one network video recorder can respectively correspond to one channel, and correspondingly, the network camera identification can be the channel number of the channel corresponding to the network camera. When a user needs to browse the video stream of a certain network camera, the corresponding channel number can be used for identification.
In an embodiment, the video stream acquisition request may further carry a video stream identifier, for example, the video stream identifier may be represented by a time period.
Correspondingly, after receiving the video stream acquisition request, the target network video recorder can acquire the video stream which is acquired by the target network video recorder and corresponds to the time period carried in the video stream acquisition request, and send the video stream to the video stream processing equipment.
In addition, if the video stream acquisition request does not carry the video stream identifier, or the video stream identifier carried in the video stream acquisition request represents a real-time video stream, the target network video recorder may acquire the video stream acquired by the target network video recorder in real time and send the video stream to the video stream processing device.
Based on the processing, according to the video stream acquisition request, the historical video stream of the corresponding time period can be acquired, and the real-time video stream can also be acquired, so that the user can browse the historical video image and the real-time video image, and different requirements of the user on browsing the video image are met.
The compression ratio of the second compression encoding format is higher than that of the first compression encoding format, so that the size of the video stream can be reduced, and the bandwidth resource occupied by the transmission video stream can be reduced.
For example, the first compression encoding format is H264, and correspondingly, the second compression encoding format may be H265. Alternatively, the first compression encoding format is H264, and correspondingly, the second compression encoding format may be H266.
The video stream processing device sends the converted video stream to the video stream request terminal, and the converted video stream is smaller and occupies less bandwidth resources, so that the number of the video streams received by the video stream request terminal in parallel can be increased, and the number of the video images which can be browsed by a user at the same time can be increased.
In one embodiment, the video stream processing device may support parallel format conversion for multiple video streams, for example, the video stream processing device may support parallel format conversion for 16 video streams, or the video stream processing device may support parallel format conversion for 8 video streams. Specifically, the number of parallel format conversion paths supported by the video stream processing device may be determined based on the configuration of the video stream processing device itself.
The user can request a plurality of paths of video streams in parallel at the video stream request end, the video stream request end can provide decoding playing channels for each path of video stream, and each decoding playing channel corresponds to one display window. Correspondingly, the video stream request end can simultaneously acquire multiple video streams through the video stream processing device, and further, for each video stream, the video stream request end can decode the video stream through the corresponding decoding and playing channel and play the video stream in the corresponding display window, and correspondingly, a user can simultaneously browse the video images corresponding to the multiple video streams.
In one embodiment, referring to fig. 2, on the basis of fig. 1, the video stream processing apparatus 103 comprises: NVS motherboard 1031 and device access motherboard 1032. The NVS mainboard 1031 is connected with the video stream request terminal 101 and the equipment access mainboard 1032 respectively; the device access motherboard 1032 is also in communication with the target network video recorder 102.
Correspondingly, the NVS motherboard 1031 is configured to receive the video stream acquisition request sent by the video stream request terminal 101, and forward the video stream acquisition request to the device access motherboard 1032.
The device access motherboard 1032 is configured to send, to the target network video recorder 102, the network camera identifier of the at least one target network camera 104 when receiving the video stream acquisition request, receive a video stream, which is sent by the target network video recorder 102 and acquired by the at least one target network camera 104, and send, to the NVS motherboard 1031, the video stream acquired by the at least one target network camera 104.
The NVS motherboard 1031 is further configured to convert the video stream acquired by the at least one target network camera 104 from the current first compression coding format to the second compression coding format, obtain at least one converted video stream, and send the at least one converted video stream to the video stream request end 101.
In the embodiment of the invention, the NVS mainboard is used for carrying out format conversion on the video stream.
In one implementation, the NVS motherboard may support parallel format conversion for multiple video streams, for example, may support parallel format conversion for 16 video streams, or may support parallel format conversion for 8 video streams. Specifically, the number of parallel format conversion paths supported by the NVS motherboard may be determined based on the configuration of the NVS motherboard. For example, the NVS motherboard may support parallel format conversion of a 16-way 1080P video stream. In addition, the NVS motherboard may be configured with a Linux system.
The equipment access mainboard is used for accessing the network video recorder. In one implementation, the device access motherboard may be an X86 motherboard, which may be configured with a Windows10 system, or may be configured with a Windows7 system. The equipment access mainboard is provided with a Windows system, and can effectively establish communication connection with a network video recorder supporting a Java-based communication protocol. For example, the device access main board is provided with a physical interface for connecting with a network video recorder through a physical link.
In one embodiment, the video stream request terminal is further configured to send a connection request for the target network video recorder to the NVS motherboard.
The connection request carries a protocol identifier of a communication protocol supported by the target network video recorder.
And the NVS mainboard is also used for receiving and forwarding the connection request to the equipment access mainboard.
The equipment is accessed to the mainboard and is also used for receiving the connection request and establishing communication connection with the target network video recorder based on the target communication protocol corresponding to the protocol identification.
The video stream acquisition request is sent by the video stream request end based on the RTSP. The connection request is sent by the video stream request terminal based on the REST protocol.
In the embodiment of the invention, before the video stream is acquired from the target network video recorder, the equipment access mainboard can also establish communication connection with the target network video recorder.
Because the network video recorders of the same manufacturer support the same communication protocol, the protocol identifier of the communication protocol supported by the target network video recorder may be the identifier of the manufacturer of the target network video recorder.
In one embodiment, the device access motherboard may have software installed therein for establishing a communication connection with a network video recorder. For example, a Device Access Component (DAC) may be installed in the Device Access motherboard, and through the Device Access Component, the Device Access motherboard may determine a communication protocol (i.e., a target communication protocol) corresponding to the protocol identifier, and further establish a communication connection with the target network video recorder based on the target communication protocol. For example, the target communication protocol may be a proprietary SDK (Software Development Kit) protocol supported by the target network video recorder.
Based on the processing, the equipment access mainboard can access network video recorders of different manufacturers, compatibility is improved, and the range of applicable scenes is expanded.
In one embodiment, the device accesses the motherboard, and is specifically configured to establish, with a target network video recorder, a video stream acquisition channel corresponding to each network camera identifier.
And sending the network camera identification to the target network video recorder through the video stream acquisition channel corresponding to each network camera identification.
And the target network video recorder is specifically used for sending the video stream acquired by the target network camera corresponding to the network camera identifier to the equipment access mainboard through the video stream acquisition channel corresponding to the network camera identifier.
In the embodiment of the invention, when a video stream acquisition request is received, aiming at the video stream of each target network camera to be acquired, the equipment access mainboard can establish a corresponding video stream acquisition channel with the target network video recorder. The video stream acquiring channel is used for transmitting the video stream of the target network camera, that is, the target network video recorder can send the video stream of the target network camera to the device access main board through the video stream acquiring channel.
For example, for each target network camera, the device access motherboard may start a thread, establish a video stream acquisition channel with the target network video recorder through the thread, and acquire a video stream of the target network camera through the thread.
In an embodiment, the device is connected to the motherboard and further configured to disconnect a video stream acquisition channel corresponding to each network camera identifier after acquiring a video stream acquired by a target network camera corresponding to each network camera identifier.
Based on this, although the capability of the NVS motherboard to perform parallel format conversion on the video stream is limited, the NVS motherboard can acquire and convert more video streams of the network cameras by dynamically establishing and disconnecting the video stream acquisition channel through the device access motherboard, and thus, the NVS motherboard can be used for browsing by the user.
In addition, after the corresponding video stream is acquired through each video stream acquisition channel, the device access main board can release the corresponding thread so as to save the memory resource occupied by the thread.
Corresponding to the above system embodiment, an embodiment of the present invention further provides a video stream processing apparatus, and referring to fig. 3, the video stream processing apparatus may include: NVS mainboard 301 and equipment access mainboard 302, wherein:
the NVS main board 301 is configured to receive a video stream acquisition request sent by a video stream request end; the video stream acquisition request is forwarded to the device access motherboard 302.
The video stream obtaining request carries an identifier of the network video recorder and at least one identifier of the network camera.
The device access mainboard 302 is used for sending at least one network camera identifier to a target network video recorder corresponding to the network video recorder identifier when receiving a video stream acquisition request, so that the target network video recorder accesses the mainboard to the device and sends a video stream acquired by a target network camera corresponding to each network camera identifier; and forwarding the video stream collected by at least one target network camera to the NVS mainboard 301.
The NVS motherboard 301 is further configured to convert the video stream acquired by the at least one target network camera from a current first compression coding format to a second compression coding format, so as to obtain at least one converted video stream; and sending the converted at least one path of video stream to a video stream request end so that the video stream request end plays the converted at least one path of video stream.
Wherein the compression ratio of the second compression encoding format is higher than that of the first compression encoding format.
The video stream processing device provided by the embodiment of the invention can transcode multiple paths of video streams simultaneously, and convert the video streams into the second compression coding format with higher compression ratio, so that the bandwidth resource occupied by the video streams can be reduced, the number of the video streams received by the video stream request end in parallel can be increased, and the number of the video images which can be browsed by a user simultaneously can be increased.
In one embodiment, the device accesses the motherboard, and is specifically configured to establish, with a target network video recorder, a video stream acquisition channel corresponding to each network camera identifier.
And sending the network camera identification to a target network video recorder through a video stream acquisition channel corresponding to each network camera identification so that the target network video recorder sends the video stream acquired by the target network camera corresponding to the network camera identification to the equipment access mainboard through the video stream acquisition channel corresponding to the network camera identification.
In an embodiment, the device is connected to the motherboard and further configured to disconnect a video stream acquisition channel corresponding to each network camera identifier after acquiring a video stream acquired by a target network camera corresponding to each network camera identifier.
In one embodiment, the NVS motherboard is further configured to receive a connection request for the target network video recorder, which is sent by the video stream request end; and forwarding the connection request to the equipment access mainboard.
The connection request carries a protocol identifier of a communication protocol supported by the target network video recorder.
The equipment is accessed to the mainboard and is also used for establishing communication connection with the target network video recorder based on the target communication protocol corresponding to the protocol identification.
The video stream acquisition request is sent by the video stream request end based on the RTSP; the connection request is sent by the video stream request terminal based on the REST protocol.
Based on the same inventive concept, an embodiment of the present invention further provides a video stream processing method, which may be applied to a video stream processing device, referring to fig. 4, where fig. 4 is a flowchart of a video stream processing method provided in an embodiment of the present invention, and the method may include the following steps:
s401: and receiving a video stream acquisition request sent by a video stream request end.
The video stream obtaining request carries an identifier of the network video recorder and at least one identifier of the network camera.
S402: and sending at least one network camera identifier to a target network video recorder corresponding to the network video recorder identifier so that the target network video recorder sends the video stream acquired by the target network camera corresponding to the at least one network camera identifier to the video stream processing equipment.
S403: and respectively converting the video stream collected by at least one target network camera from the current first compression coding format into a second compression coding format to obtain at least one path of converted video stream.
Wherein the compression ratio of the second compression encoding format is higher than that of the first compression encoding format.
S404: and sending the converted at least one path of video stream to a video stream request end so that the video stream request end plays the converted at least one path of video stream.
The video stream processing method provided by the embodiment of the invention can transcode multiple paths of video streams simultaneously, convert the video streams into the second compression coding format with higher compression ratio, and reduce the bandwidth resources occupied by the video streams, so that the number of the video streams received by the video stream request end in parallel can be increased, and the number of the video images which can be browsed by a user simultaneously can be increased.
In an embodiment, referring to fig. 5, on the basis of fig. 4, the step S402 may include:
s4021: and respectively establishing a video stream acquisition channel corresponding to each network camera identifier with the target network video recorder.
S4022: and sending the network camera identification to a target network video recorder through a video stream acquisition channel corresponding to each network camera identification so that the target network video recorder sends the video stream acquired by the target network camera corresponding to the network camera identification to the video stream processing equipment through the video stream acquisition channel corresponding to the network camera identification.
In step S4021, that is, at least one video stream acquisition channel is established with the target network video recorder, where each video stream acquisition channel corresponds to one network camera identifier.
In an embodiment, after the video stream acquired by the target network camera corresponding to each network camera identifier is acquired, the video stream acquisition channel corresponding to the network camera identifier may also be disconnected.
In an embodiment, referring to fig. 6, on the basis of fig. 4, before the step S401, the method may further include:
s405: and receiving a connection request aiming at the target network video recorder, which is sent by a video stream request end.
The connection request carries a protocol identifier of a communication protocol supported by the target network video recorder.
S406: and establishing communication connection with the target network video recorder based on the target communication protocol corresponding to the protocol identifier.
In one embodiment, the video stream acquisition request may be sent based on RTSP for the video stream request end; the connection request may be sent by the video stream requester based on the REST protocol.
Referring to fig. 7, fig. 7 is a signaling interaction diagram of a video stream processing method according to an embodiment of the present invention. May include the steps of:
s701: and the video stream request terminal acquires the information of the target network video recorder.
The information of the target network video recorder comprises the following steps: the communication protocol supported by the target network video recorder and the network video camera connected with the target network video recorder.
S702: and the video stream request terminal sends a connection request aiming at the target network video recorder to the NVS mainboard based on the RSET protocol.
The connection request carries a protocol identifier of a communication protocol supported by the target network video recorder.
S703: and the NVS mainboard sends a connection request to the equipment access mainboard.
S704: and the equipment access mainboard establishes communication connection with the target network video recorder based on the target communication protocol corresponding to the protocol identifier.
S705: and the equipment access main board sends a successful connection message to the NVS main board.
S706: and the NVS mainboard sends a successful connection message to the video stream request end.
S707: and the video stream request end is based on the RTSP and sends a video stream acquisition request to the NVS mainboard.
The video stream obtaining request carries the network video recorder identification of the target network video recorder and the network camera identification of at least one target network camera.
S708: and the NVS mainboard sends a video stream acquisition request to the equipment access mainboard.
S709: and the equipment access mainboard sends the network camera identification of at least one target network camera to the target network video recorder.
S7010: and the target network video recorder accesses the mainboard to the equipment and sends the video stream collected by at least one target network video recorder.
S7011: and the equipment access main board sends at least one path of video stream to the NVS main board.
S7012: the NVS main board converts at least one path of video stream from a current first compression coding format to a second compression coding format.
Wherein the compression ratio of the second compression encoding format is higher than that of the first compression encoding format.
S7013: and the NVS mainboard sends the converted at least one path of video stream to the video stream request end.
S7014: and the video stream request end plays the converted at least one path of video stream.
An embodiment of the present invention further provides a video stream processing apparatus, as shown in fig. 8, which includes a processor 801, a communication interface 802, a memory 803, and a communication bus 804, where the processor 801, the communication interface 802, and the memory 803 complete mutual communication through the communication bus 804,
a memory 803 for storing a computer program;
the processor 801 is configured to implement the following steps when executing the program stored in the memory 803:
receiving a video stream acquisition request sent by a video stream request end; the video stream acquisition request carries an identification of a network video recorder and at least one identification of a network camera;
sending the at least one network camera identifier to a target network video recorder corresponding to the network video recorder identifier, so that the target network video recorder sends a video stream acquired by a target network camera corresponding to the at least one network camera identifier to the video stream processing device;
respectively converting the video stream collected by at least one target network camera from a current first compression coding format into a second compression coding format to obtain at least one converted video stream; wherein the compression ratio of the second compression encoding format is higher than the compression ratio of the first compression encoding format;
and sending the converted at least one video stream to the video stream request end so that the video stream request end plays the converted at least one video stream.
The communication bus mentioned in the video stream processing apparatus may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.
The communication interface is used for communication between the video stream processing apparatus and other apparatuses.
The Memory may include a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the processor.
The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components.
In yet another embodiment of the present invention, a computer-readable storage medium is further provided, in which a computer program is stored, and the computer program, when executed by a processor, implements the steps of any of the above-mentioned video stream processing methods.
In a further embodiment provided by the present invention, there is also provided a computer program product containing instructions which, when run on a computer, cause the computer to perform any of the video stream processing methods of the above embodiments.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the embodiments of the video stream processing apparatus, the video stream processing method, the computer-readable storage medium, and the computer program product, since they are substantially similar to the embodiments of the method, the description is relatively simple, and it suffices to refer to the partial description of the embodiments of the method for the relevant points.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (15)
1. A video stream processing system, comprising: the system comprises a video stream request terminal, a target network video recorder, a video stream processing device and at least one target network camera; the video stream processing equipment is respectively connected with the video stream request terminal and the target network video recorder; the target network video recorder is also connected with the at least one target network video camera, wherein:
the video stream request terminal is used for sending a video stream acquisition request to the video stream processing equipment; the video stream acquisition request carries the network video recorder identification of the target network video recorder and the network camera identification of the at least one target network camera;
the video stream processing equipment is used for sending the network camera identification of the at least one target network camera to the target network video recorder according to the network video recorder identification;
the target network video recorder is used for sending the video stream collected by the at least one target network camera to the video stream processing equipment according to the network camera identification;
the video stream processing device is further configured to convert a video stream acquired by at least one target network camera from a current first compression coding format to a second compression coding format, obtain at least one converted video stream, and send the at least one converted video stream to the video stream request end; wherein the compression ratio of the second compression encoding format is higher than the compression ratio of the first compression encoding format;
and the video stream request end is also used for playing the converted at least one path of video stream.
2. The video stream processing system according to claim 1, wherein the video stream processing apparatus comprises: the network video service host NVS main board and the equipment access main board; the NVS mainboard is respectively connected with the video stream request end and the equipment access mainboard; the equipment access mainboard is also connected with the target network video recorder;
the NVS mainboard is used for receiving the video stream acquisition request sent by the video stream request terminal and forwarding the video stream acquisition request to the equipment access mainboard;
the device access mainboard is used for sending the network camera identification of the at least one target network camera to the target network video recorder, receiving the video stream which is sent by the target network video recorder and collected by the at least one target network camera, and sending the video stream which is collected by the at least one target network camera to the NVS mainboard when the video stream acquisition request is received;
the NVS motherboard is further configured to convert the video stream acquired by the at least one target network camera from a current first compression coding format to a second compression coding format, obtain at least one converted video stream, and send the at least one converted video stream to the video stream request end.
3. The video stream processing system of claim 2,
the equipment is accessed to the mainboard and is specifically used for establishing a video stream acquisition channel corresponding to each network camera identifier with the target network video recorder respectively;
sending the network camera identification to the target network video recorder through a video stream acquisition channel corresponding to each network camera identification;
the target network video recorder is specifically configured to send the video stream acquired by the target network camera corresponding to the network camera identifier to the device access motherboard through the video stream acquisition channel corresponding to the network camera identifier.
4. The video stream processing system of claim 3,
the equipment is connected to the mainboard and is further used for disconnecting the video stream acquisition channel corresponding to the network camera identification after acquiring the video stream acquired by the target network camera corresponding to each network camera identification.
5. The video stream processing system of claim 2,
the video stream request terminal is further configured to send a connection request for the target network video recorder to the NVS motherboard; the connection request carries a protocol identifier of a communication protocol supported by the target network video recorder;
the NVS mainboard is further used for receiving and forwarding the connection request to the equipment access mainboard;
the equipment access mainboard is also used for receiving the connection request and establishing communication connection with the target network video recorder based on a target communication protocol corresponding to the protocol identifier;
the video stream acquisition request is sent by the video stream request end based on a real-time streaming protocol (RTSP); the connection request is sent by the video stream request end based on a representational state transfer (REST) protocol.
6. A video stream processing apparatus characterized by comprising: network video service NVS mainboard and equipment access mainboard, wherein:
the NVS mainboard is used for receiving a video stream acquisition request sent by a video stream request end; the video stream acquisition request carries an identification of a network video recorder and at least one identification of a network camera; forwarding the video stream acquisition request to the equipment access main board;
the device access mainboard is used for sending the at least one network camera identifier to a target network video recorder corresponding to the network video recorder identifier when receiving the video stream acquisition request, so that the target network video recorder accesses the mainboard to the device and sends video streams acquired by the target network cameras corresponding to the at least one network camera identifier; forwarding a video stream collected by at least one target network camera to the NVS mainboard;
the NVS mainboard is further used for converting the video stream collected by the at least one target network camera from the current first compression coding format to a second compression coding format respectively to obtain at least one converted video stream; wherein the compression ratio of the second compression encoding format is higher than the compression ratio of the first compression encoding format; and sending the converted at least one video stream to the video stream request end so that the video stream request end plays the converted at least one video stream.
7. The video stream processing apparatus according to claim 6,
the equipment is accessed to the mainboard and is specifically used for establishing a video stream acquisition channel corresponding to each network camera identifier with the target network video recorder respectively;
and sending the network camera identification to the target network video recorder through the video stream acquisition channel corresponding to each network camera identification so that the target network video recorder sends the video stream acquired by the target network camera corresponding to the network camera identification to the equipment access main board through the video stream acquisition channel corresponding to the network camera identification.
8. The video stream processing apparatus according to claim 7,
the equipment is connected to the mainboard and is further used for disconnecting the video stream acquisition channel corresponding to the network camera identification after acquiring the video stream acquired by the target network camera corresponding to each network camera identification.
9. The video stream processing apparatus according to claim 6,
the NVS mainboard is further used for receiving a connection request which is sent by the video stream request end and aims at the target network video recorder; the connection request carries a protocol identifier of a communication protocol supported by the target network video recorder; forwarding the connection request to the equipment access mainboard;
the equipment is accessed to the mainboard and is also used for establishing communication connection with the target network video recorder based on the target communication protocol corresponding to the protocol identification;
the video stream acquisition request is sent by the video stream request end based on a real-time streaming protocol (RTSP); the connection request is sent by the video stream request end based on a representational state transfer (REST) protocol.
10. A video stream processing method applied to a video stream processing apparatus, the method comprising:
receiving a video stream acquisition request sent by a video stream request end; the video stream acquisition request carries an identification of a network video recorder and at least one identification of a network camera;
sending the at least one network camera identifier to a target network video recorder corresponding to the network video recorder identifier, so that the target network video recorder sends a video stream acquired by a target network camera corresponding to the at least one network camera identifier to the video stream processing device;
respectively converting the video stream collected by at least one target network camera from a current first compression coding format into a second compression coding format to obtain at least one converted video stream; wherein the compression ratio of the second compression encoding format is higher than the compression ratio of the first compression encoding format;
and sending the converted at least one video stream to the video stream request end so that the video stream request end plays the converted at least one video stream.
11. The method of claim 10, wherein the sending the at least one network camera identifier to the network video recorder to identify the corresponding target network video recorder so that the target network video recorder sends the video stream captured by the target network video recorder to the video stream processing device, where the at least one network camera identifier corresponds to the corresponding target network video recorder, comprises:
respectively establishing a video stream acquisition channel corresponding to each network camera identifier with the target network video recorder;
and sending the network camera identification to the target network video recorder through the video stream acquisition channel corresponding to each network camera identification so that the target network video recorder sends the video stream acquired by the target network camera corresponding to the network camera identification to the video stream processing equipment through the video stream acquisition channel corresponding to the network camera identification.
12. The method of claim 11, further comprising:
and after the video stream acquired by the target network camera corresponding to each network camera identifier is acquired, disconnecting the video stream acquisition channel corresponding to the network camera identifier.
13. The method according to claim 10, wherein before receiving the video stream acquisition request sent by the video stream request terminal, the method further comprises:
receiving a connection request aiming at the target network video recorder, which is sent by the video stream request terminal; the connection request carries a protocol identifier of a communication protocol supported by the target network video recorder;
establishing communication connection with the target network video recorder based on a target communication protocol corresponding to the protocol identifier;
the video stream acquisition request is sent by the video stream request end based on a real-time streaming protocol (RTSP); the connection request is sent by the video stream request end based on a representational state transfer (REST) protocol.
14. The video stream processing equipment is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus;
a memory for storing a computer program;
a processor for implementing the method steps of any of claims 10 to 13 when executing a program stored in the memory.
15. A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium, which computer program, when being executed by a processor, carries out the method steps of any one of the claims 10-13.
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