WO2014206073A1 - 一种视频数据处理方法及装置 - Google Patents

一种视频数据处理方法及装置 Download PDF

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Publication number
WO2014206073A1
WO2014206073A1 PCT/CN2014/070578 CN2014070578W WO2014206073A1 WO 2014206073 A1 WO2014206073 A1 WO 2014206073A1 CN 2014070578 W CN2014070578 W CN 2014070578W WO 2014206073 A1 WO2014206073 A1 WO 2014206073A1
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Prior art keywords
scheduling
packet
information
scheduling queue
output
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PCT/CN2014/070578
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English (en)
French (fr)
Inventor
彭非
任绪强
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP14818051.6A priority Critical patent/EP2986010B1/en
Priority to JP2016522192A priority patent/JP6230081B2/ja
Publication of WO2014206073A1 publication Critical patent/WO2014206073A1/zh
Priority to US14/943,784 priority patent/US9860575B2/en
Priority to US15/820,723 priority patent/US10244277B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/242Synchronization processes, e.g. processing of PCR [Program Clock References]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/21Server components or server architectures
    • H04N21/222Secondary servers, e.g. proxy server, cable television Head-end
    • H04N21/2221Secondary servers, e.g. proxy server, cable television Head-end being a cable television head-end
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/21Server components or server architectures
    • H04N21/222Secondary servers, e.g. proxy server, cable television Head-end
    • H04N21/2225Local VOD servers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/23608Remultiplexing multiplex streams, e.g. involving modifying time stamps or remapping the packet identifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2365Multiplexing of several video streams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/262Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643Communication protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/23406Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving management of server-side video buffer
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85Assembly of content; Generation of multimedia applications
    • H04N21/854Content authoring
    • H04N21/8547Content authoring involving timestamps for synchronizing content

Definitions

  • the present invention relates to the field of communications, and in particular, to a video data processing method and apparatus.
  • the QAM device outputs the MPTS in a pass-through manner, that is, the QAM input program and the output program are completely identical.
  • SPTS format input to QAM for SDV (Switched Digital Video), VOD (Video On Demand) server, and M-CMTS (modular cable modem termination system) The code stream or DATA data stream, QAM multiplexes it into different service partitions. Among them, each V0D and DATA stream corresponds to a unique service partition, and the SDV stream corresponds to multiple service partitions.
  • UEQAM Universal Edge QAM
  • CCAP Converged Cable Access Platform
  • the program source of a certain QAM output channel can only be a fixed SPTS or MPTS program source. It cannot be any SPTS or MPTS program source, and multiple SPTSs in the input MPTS input source cannot be multiplexed or copied to multiple output channels.
  • Embodiments of the present invention provide a video data processing method and apparatus capable of outputting multiple output channels of arbitrary video data.
  • a video data processing method including:
  • a multi-program transport stream identifier of each TS packet in at least one transport stream TS packet Acquiring a multi-program transport stream identifier of each TS packet in at least one transport stream TS packet; acquiring, by the multi-program transport stream identifier of each TS packet, the single TS card packet from the first information mapping table a program transport stream identifier, where the first information mapping table is a mapping relationship table between the multi-program transport stream identifier and the single program transport stream identifier;
  • the TS packet creates at least one scheduling queue, where each single-program transport stream identifier in the first information mapping table corresponds to one scheduling queue;
  • the first TS packet of any scheduling queue satisfies the scheduling condition, select at least one output channel according to the single program transport stream identifier of any one of the scheduling queues, and output any one of the scheduling queues, and continue to determine other The first TS packet of the queue is scheduled until all the scheduling queues have been judged.
  • the method further includes:
  • the first TS packet of any scheduling queue does not satisfy the scheduling condition, skip any one of the scheduling queues, and continue to determine the first TS packet of the other scheduling queue until all the scheduling queues are determined.
  • the determining, according to the first possible implementation manner, whether the first TS packet of the any scheduling queue meets the scheduling condition includes:
  • the storage time of the first TS packet of the any scheduling queue stored in the storage space where the enqueue time is The first TS packet of any scheduling queue is generated when being allocated to the storage space, and the scheduling time is to schedule the first TS packet of any one of the scheduling queues.
  • the selecting, according to the single program transport stream identifier of any one of the scheduling queues, selecting at least one output channel to output the one of the scheduling queues includes:
  • the second information mapping table is a single program transport stream identifier and output information
  • the output information includes the number of times the scheduling queue needs to be output
  • the third information mapping table Acquiring, by the third information mapping table, output channel information corresponding to each of the output identifiers of the at least one of the scheduling queues, where the third information mapping table is an information mapping of output identifiers and output channel information
  • the output channel information includes an output channel number
  • the output identifier of the at least one of the scheduling queues is generated according to the output information corresponding to any one of the scheduling queues according to the third possible implementation manner, including:
  • the acquiring, according to the first aspect, the multi-program transport stream identifier of each TS packet in the at least one TS packet includes:
  • the fourth information mapping table is a packet header information and A mapping table of multi-program transport stream identifiers.
  • the creating, according to the first aspect, the at least one scheduling queue for the at least one TS packet according to the single program transport stream identifier in the first information mapping table includes:
  • the second aspect provides a video data processing apparatus, including: an information configuration module, configured to configure a first information mapping table to the identifier obtaining module and the queue management module;
  • the identifier obtaining module is configured to acquire a multi-program transport stream identifier of each TS packet in the at least one transport stream TS packet;
  • the identifier obtaining module is further configured to acquire, by the first information mapping table configured by the information configuration module, the single program transmission of each TS packet by using the multi-program transport stream identifier of each TS packet.
  • a flow identifier where the first information mapping table is a mapping relationship between a multi-program transport stream identifier and a single program transport stream identifier;
  • a queue management module configured to create at least one scheduling team ⁇
  • a data scheduling module configured to select any scheduling queue generated by the queue management module, and determine whether the first TS packet of any one of the scheduling queues meets a scheduling condition;
  • the data scheduling module is further configured to: if the first TS packet of any one of the scheduling queues meets the scheduling condition, select at least one output channel according to the single program transport stream identifier of any one of the scheduling queues A scheduling queue outputs, and continues to determine the first TS packet of the other scheduling queue until all scheduling queues are judged.
  • the device further includes: the data scheduling module, configured to: if the first TS packet of the any scheduling queue does not meet the scheduling condition, Skip any of the scheduling queues and continue to determine the first TS packets of other scheduling queues until all scheduling queues are judged.
  • the data scheduling module includes:
  • an information acquiring unit configured to acquire, according to the enqueue time and the scheduling time of the first TS packet of the any scheduling queue, the storage time of the first TS packet of the any scheduling queue stored in the storage space, where The time when the first TS packet of the scheduling queue is allocated to the storage space, and the scheduling time is generated when the first TS packet of the scheduling queue is scheduled.
  • a condition determining unit configured to determine whether a storage time of the first TS packet of the any scheduling queue acquired by the information acquiring unit is less than a preset buffer time; if the storage time of the first TS packet is greater than or equal to a pre- Determining, by the cache time, determining that the first TS packet of the scheduling queue meets the scheduling condition; if the storage time of the first TS packet of the scheduling queue is less than a preset buffering time, determining the scheduling queue The first TS packet does not satisfy the scheduling condition.
  • the information configuration module is further configured to configure a second information mapping table and a third information mapping table to the data scheduling module;
  • the data scheduling module further includes:
  • the information obtaining unit is further configured to obtain output information corresponding to any one of the scheduling queues from the second information mapping table by using the single program transport stream identifier of any one of the scheduling queues, where the second information mapping table a mapping relationship between the flow identification of the single program and the output information, where the output information includes the number of times the scheduling queue needs to be output;
  • An identifier generating unit configured to generate an output identifier of at least one of the scheduling queues according to output information corresponding to any one of the scheduling queues acquired by the information acquiring unit;
  • the information acquiring unit is further configured to acquire the at least one from a third information mapping table
  • the output information of each of the output identifiers of the any one of the output queues is output, and the third information mapping table is an information mapping table of the output identifier and the output channel information, where the output channel information includes an output channel number;
  • the queue output unit is further configured to output any one of the scheduling queues according to the output channel information corresponding to each of the output identifiers acquired by the information acquiring unit.
  • the identifier generating unit is specifically configured to: if the number of times that the scheduling queue needs to be output is at least twice, according to the information Obtaining, by the acquiring unit, the single program transport stream identifier of any one of the scheduling queues, generating an output identifier of at least two of the scheduling queues; or, if the number of times that any of the scheduling queues needs to be outputted is once, according to the information
  • the single program transport stream identifier of any one of the scheduling queues obtained by the obtaining unit generates an output identifier of any one of the scheduling queues.
  • the information configuration module is further configured to configure a fourth information mapping table to the identifier obtaining module;
  • the identifier obtaining module is specifically configured to: parse at least one input data packet, obtain packet header information and a TS packet of each input data packet; and obtain, according to the packet header information of each input data packet, the fourth information mapping table And the multi-program transport stream identifier corresponding to the TS packet of each input data packet, where the fourth information mapping table is a mapping relationship table between the packet header information and the multi-program transport stream identifier.
  • the queue management module is specifically configured to: create a storage space for each single program transport stream identifier in the first information mapping table; Each TS packet in a TS packet is respectively stored in a storage space of the single program transport stream identifier corresponding to each TS packet; according to the storage space of each single program transport stream identifier in the first information mapping table The stored TS packets generate a corresponding scheduling queue.
  • the video data processing method and apparatus uniformly manages the scheduling team ⁇
  • the TS packet is uniformly scheduled, and when each scheduling queue needs to output the TS packet in the scheduling queue, at least one output channel is selected to output it, thereby realizing the output of the multi-output channel of the video data.
  • 1 is a schematic flowchart of a video data processing method according to an embodiment of the present invention
  • 2 is a schematic flowchart of another video data processing method according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a video data processing apparatus according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of another video data processing apparatus according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a video data processing apparatus according to another embodiment of the present invention.
  • digital video is generally transmitted in the TS (Transport Stream) format, which includes SPTS (Single Program Transport Stream) and MPTS (Multi Program Transport Stream).
  • the SPTS is a transport stream of a single program, and is composed of a compressed video stream and an audio stream;
  • the MPTS is a transport stream of a plurality of programs, and is composed of a plurality of SPTSs.
  • the broadcast program stream In order to be used for transmission of different networks (such as HFC (Hybrid fibre-coaxial), satellite, terrestrial broadcasting, etc.), the broadcast program stream generally uses a constant bit rate MPTS transmission format.
  • QAM Quadrature Amplitude Modulation
  • the device or multiplexer device multiplexes the input SPTS or demultiplexes the input MPTS before re-multiplexing to adapt to different bandwidth transmission networks.
  • QAM equipment can be used for digital television (BTV (Broadcast TV)), interactive digital TV (SDV), video on demand (VOD), broadband data (DOCSIS (Data-Over- Cable Service Interface Specifications, Wired Cable Data Service Interface Specification) and other fields; multiplexers can be used in areas such as BTV and SDV.
  • the video data mentioned in the present invention specifically includes three types of data: broadcast service data, on-demand service data, and network data service data.
  • the input format supported by the QAM device in the prior art is fixed, and only supports inputting a fixed SPTS or MPTS program source, and does not support input of the input MPTS.
  • the application scenario in which the SPTS in the source is copied to multiple output channels, the present invention provides a video data processing method.
  • the video data processing method includes the following steps:
  • the video data processing apparatus acquires a multi-program transport stream identifier of each TS packet in at least one transport stream TS packet.
  • the video data processing apparatus sequentially acquires the single program transport stream identifier of each TS packet from the first information mapping table by using the multi-program transport stream identifier of each TS packet.
  • the first information mapping table is a mapping relationship between the multi-program transport stream identifier and the single-program transport stream identifier. Specifically, each TS packet has a single program transport stream identifier corresponding thereto, and different TS packets correspond to each other.
  • the single program transport stream identifier may be the same.
  • the video data processing apparatus creates at least one scheduling queue for the at least one TS packet according to the single program transport stream identifier in the first information mapping table.
  • the single program transmission stream identifiers in the first information mapping table respectively correspond to one scheduling queue. Specifically, since the single program transmission stream identifiers corresponding to different TS packets may be the same, the number of scheduling queues here is based on The first information mapping table is configured to avoid repeatedly setting the scheduling queue for the same single program transport stream identifier. Therefore, the TS packets with the same single program transport stream identifier are sequentially allocated to the scheduling of the single program transport stream identifier. In the queue.
  • the video data processing device can randomly select any scheduling queue for scheduling, or schedule the scheduling queue according to a preset scheduling sequence, because the former scheduling method includes The latter scheduling mode, therefore, the previous scheduling mode will be specifically described in the following embodiments, and will not be described in detail herein.
  • step 104 if the first TS packet of any scheduling queue satisfies the scheduling condition, then go to step 105. If the first TS packet of any scheduling queue does not satisfy the scheduling condition, then go to step 106. 105. If the first TS packet of any scheduling queue meets the scheduling condition, the video data processing apparatus selects at least one output channel according to the single program transport stream identifier of any scheduling queue, and outputs any scheduling queue, and continues to determine other scheduling queues. The first TS packet, until all scheduling queues have been judged.
  • the video data processing apparatus acquires the multi-program transport stream identifier of each TS packet in the at least one transport stream TS packet.
  • step 201 specifically includes the following steps:
  • the video data processing device parses at least one input data packet to obtain header information and a TS packet for each input data packet.
  • the video data processing apparatus acquires, according to the header information of each input data packet, the multi-program transport stream identifier corresponding to the TS packet of each input data packet from the fourth information mapping table.
  • the fourth information mapping table is a mapping relationship between the header information of the input data packet and the multi-program transport stream identifier.
  • the multi-program transport stream identifier may be represented by mpts-index.
  • the foregoing packet header information specifically includes, but is not limited to, a MAC (Media Access Control) value, a UDP (User Datagram Protocol) value, and an IP value.
  • the video data processing device first parses the at least one MPTS packet data packet, and extracts the second layer, the third layer, and the fourth of the at least one MPTS packet data packet. Layer header information and at least one TS packet, and adding a packet descriptor information for each TS packet, and finally obtaining a multi-program corresponding to each TS packet from the fourth information mapping table according to the header information of each MPTS packet data packet.
  • Transport stream identification and will The multi-program transport stream identifier corresponding to each TS packet is added to the packet descriptor information of each TS packet for subsequent application.
  • the at least one input data packet mentioned in the present invention refers to an MPTS message data packet that can be queried in the fourth information mapping table.
  • the video data processing apparatus sequentially acquires the single program transport stream identifier of each TS packet from the first information mapping table by using the multi-program transport stream identifier of each TS packet.
  • the first information mapping table is a mapping relationship between the multi-program transport stream identifier and the single-program transport stream identifier, and the multi-program transport stream identifier may correspond to at least one single-program transport stream identifier, specifically, the foregoing single program transmission.
  • the stream identifier can be represented by spts - i ndex.
  • the video data processing apparatus adds the single program transport stream identifier of each TS packet obtained by sequentially checking the multi-program transport stream identifier of each TS packet from the first information mapping table to the packet descriptor information, so as to Subsequent applications.
  • the video data processing apparatus creates at least one scheduling queue for the at least one TS packet according to the single program transport stream identifier in the first information mapping table.
  • the single program transmission stream identifiers in the first information mapping table respectively correspond to one scheduling queue. Specifically, since the single program transmission stream identifiers corresponding to different TS packets may be the same, the number of scheduling queues here is based on The first information mapping table is configured to avoid repeatedly setting the scheduling queue for the same single program transport stream identifier. Therefore, the TS packets with the same single program transport stream identifier are sequentially allocated to the scheduling of the single program transport stream identifier. In the queue.
  • step 2 03 specifically includes the following steps:
  • the video data processing apparatus creates a storage space for each single program transport stream identifier in the first information mapping table.
  • the video data processing device stores each TS packet in at least one TS packet into a storage space of the single program transport stream identifier corresponding to each TS packet.
  • the video data processing device generates a corresponding scheduling queue according to the TS packets stored in the storage space identified by each single program transport stream in the first mapping table.
  • the video data processing device creates a storage space for each single program transport stream identifier in the preset first information mapping table, and when receiving at least one TS packet, And storing the at least one TS packet in the storage space corresponding to the single program transport stream identifier according to the single program transport stream identifier of each TS packet, and then forming the TS packets in each storage space into a set of scheduling queues respectively, so that The scheduling queues corresponding to different video programs are separated and maintained. At the same time, complete the TS package enrollment process.
  • the TS packets stored in the scheduling queue corresponding to each single program transport stream identifier correspond to the data of the same video program, and the corresponding TS packets are sorted according to the time sequence of the output of the video program. That is, according to the time sequence when each TS packet is input into the storage space, to ensure that the video programs are output in accordance with their normal program time sequence.
  • the video data processing device selects any scheduling queue, and determines whether the first TS packet of any scheduling queue satisfies the scheduling condition.
  • each scheduling queue since the TS packets stored in each scheduling queue are related to each other, it is only necessary to judge the first TS packet of each scheduling queue, and it is known whether the scheduling queue satisfies the scheduling condition.
  • step 2 04 specifically includes the following steps:
  • the video data processing device acquires the storage time of the first TS packet of any scheduling queue stored in the storage space according to the enrollment time and the scheduling time of the first TS packet of any scheduling queue.
  • the enqueue time is generated when the first TS packet of any scheduling queue is allocated to the storage space, and the scheduling time is generated when scheduling the first TS packet of any scheduling queue.
  • the first TS packet of any of the foregoing scheduling queues obtains the multi-program transport stream identifier of the first TS packet
  • a timer needs to be started according to the multi-program transport stream identifier of the first TS packet.
  • the timer is configured to mark a queue time information when the first TS packet is allocated in a storage space corresponding to the single program transport stream identifier of the first TS packet, and add the enrollment time information to the first
  • the packet descriptor information of a TS packet, for subsequent use is also used to mark a scheduling time information when scheduling the first TS, and can also be said to be tracking time information of the first TS packet, that is, timing Current time information of the device, and the scheduling time information is added to the packet descriptor information of the first TS packet for subsequent use.
  • the video data processing apparatus determines whether the storage time of the first TS packet of any scheduling queue is less than a preset buffering time.
  • the storage time of the first TS packet of any scheduling queue is greater than or equal to a preset If the storage time of the first TS packet of any scheduling queue is less than the preset buffering time, it is determined that the scheduling criterion is not met by any scheduling queue.
  • the method may first select one of the scheduling queues from the at least one scheduling queue as described in the foregoing step, and determine whether the arbitrary scheduling queue meets the scheduling condition. If yes, the next scheduling queue is selected for judgment until all scheduling queues are judged.
  • it is also possible to select separate maintenance and scheduling that is, simultaneously determine all scheduling queues in the at least one scheduling queue, and output the TS packets stored in the storage order according to the storage order as long as the scheduling condition is reached.
  • step 204 if the first TS packet of any scheduling queue satisfies the scheduling condition, then the process proceeds to step 205. If the first TS packet of any scheduling queue does not satisfy the scheduling condition, then step 206 is performed.
  • the video data processing apparatus selects at least one output channel according to the single program transport stream identifier of any scheduling queue, and outputs any scheduling queue, and continues to determine other scheduling queues. The first TS packet, until all scheduling queues have been judged.
  • the video data processing device in step 205 selects at least one output channel to output any scheduling queue according to the single-channel transport stream identifier of any scheduling queue, and specifically includes the following steps:
  • the video data processing apparatus acquires output information corresponding to any scheduling queue from the second information mapping table by using a single program transport stream identifier of any scheduling queue.
  • the second information mapping table is a mapping relationship table between the single program transport stream identifier and the output information, and the output information includes the number of times the scheduling queue needs to be output.
  • the above output identifier can be represented by ou t- i ndex.
  • the video data processing apparatus generates an output identifier of at least one of the scheduling queues according to the output information corresponding to any scheduling queue.
  • step 205b specifically includes:
  • the video data processing device If the number of times that any scheduling queue needs to be output is at least twice, the video data processing device generates an output identifier of at least two scheduling queues according to the single program transport stream identifier of any scheduling queue.
  • the video data processing apparatus If the number of times that any scheduling queue needs to be output is one time, the video data processing apparatus generates an output identifier of any scheduling queue according to the single program transport stream identifier of any scheduling queue.
  • the video data processing apparatus acquires, from the third information mapping table, output channel information corresponding to each of the output identifiers of the at least one of the scheduling queues.
  • the third information mapping table is an information mapping table for outputting identifiers and output channel information, and the output channel information includes but is not limited to an output channel number.
  • the video data processing device outputs any scheduling queue according to the output channel information corresponding to each output identifier.
  • the single program transport stream identifier is taken as an example of spts-index
  • the output identifier is taken as an example of out-index. Therefore, if the first TS packet of the scheduling queue satisfies the scheduling condition, the spts-index is first extracted from the packet descriptor information of the first TS packet of the scheduling queue, and according to any scheduling queue The spts-index of the first TS packet queries from the second information mapping table whether copying is required, and the number of times of copying is required if copying is required.
  • out-index spts-index
  • the output channel corresponding to the out-index of any scheduling queue is found.
  • the channel number directly outputs the TS packets in any of the scheduling queues.
  • N different out-indexes are generated according to the number of times of the required replication (N>1).
  • the newly generated out-index is added to the package descriptor information for subsequent application.
  • the channel numbers of the three output channels corresponding to the three out-index of the scheduling queue are found from the third information mapping table, and finally, the A dispatch queue simultaneously outputs three output channels found by the three output channel numbers.
  • the multi-program transport stream identifier is mpts-index as an example
  • the single program transport stream identifier is taken as an example of spts-index
  • the output identifier is taken as an example of out-index.
  • the mpts-index i'J spts-index ⁇ mapping the specific mpts-index and spts-index are completed, and the column management and queue scheduling are completed, and the multiplexing is realized, and the mapping of spts-index to out-index is realized.
  • the video data processing apparatus continues to determine the first TS packet of the other scheduling queue until all the scheduling queues are determined.
  • first information mapping table, the second information mapping table, the third information mapping table, and the fourth information mapping table mentioned in the embodiments of the present invention are dynamically configured and modified according to actual conditions.
  • the video data processing method provided by the embodiment of the present invention uniformly manages a scheduling queue created according to a single program transport stream identifier in the first information mapping table for all TS packets input, and a unified scheduling of all TS packets to be scheduled. And, when each scheduling queue needs to output the TS packet in the scheduling queue, select at least one output channel to output it, thereby implementing output of the multi-output channel of the video data.
  • An embodiment of the present invention provides a video data processing apparatus.
  • the video data processing apparatus is used to implement the video data processing method described above, and the video data processing apparatus can be regarded as a multiplexing in a QAM device.
  • the module, and the existing QAM (Quadral Amplitude Modulation) device includes: UEQAM (Universal Edge QAM), EQAM (Edge QAM), also known as IPQAM and traditional QAM, the video data processing
  • the device 3 includes: an information configuration module 31, an identifier acquisition module 32, a queue management module 33, and a data scheduling module 34, wherein:
  • the information configuration module 31 is configured to configure the first information mapping table to the identifier obtaining module 32 and the queue management module 33.
  • the identifier obtaining module 32 is configured to acquire a multi-program transport stream identifier of each TS packet in the at least one TS packet.
  • the identifier obtaining module 32 is further configured to acquire, by the first information mapping table configured by the information configuration module 31, the single program transport stream identifier of each TS packet by using the multi-program transport stream identifier of each TS packet, where the first information is
  • the mapping table is a mapping relationship table between the multi-program transport stream identifier and the single program transport stream identifier.
  • a queue management module 33 configured to perform first information mapping according to the information configuration module 31
  • the single program transport stream identifier in the table creates at least one scheduling queue for at least one TS packet, where each single program transport stream identifier in the first information mapping table corresponds to one scheduling queue.
  • the data scheduling module 34 is configured to select any scheduling queue generated by the queue management module 3 3 and determine whether the first TS packet of any scheduling queue satisfies the scheduling condition.
  • the data scheduling module 34 is further configured to: if the first TS packet of any scheduling queue meets the scheduling condition, select at least one output channel according to the single program transport stream identifier of any scheduling queue, and output any scheduling queue, and continue to determine other The first TS packet of the queue is scheduled until all the scheduling queues have been judged.
  • the data scheduling module 34 is further configured to: if the first TS packet of any scheduling queue does not meet the scheduling condition, skip any scheduling queue, and continue to determine the first TS packet of the other scheduling queue, until all scheduling queues All judged.
  • the data scheduling module 34 includes: an information obtaining unit 34 1 and a condition determining unit 342, where:
  • the information obtaining unit 34 1 is configured to acquire, according to the enrollment time and the scheduling time of the first TS packet of any scheduling queue, the storage time of the first TS packet of any scheduling queue stored in the storage space, where the enqueue time The first TS packet of any scheduling queue is generated when it is allocated to the storage space, and the scheduling time is generated when the first TS packet of any scheduling queue is scheduled.
  • the condition determining unit 34 2 is configured to determine whether the storage time of the first TS packet of any scheduling queue acquired by the information acquiring unit 34 1 is less than a preset buffering time; if the storage time of the first TS packet of any scheduling queue is greater than Or equal to the preset buffer time, determining that the first TS packet of the scheduling queue meets the scheduling condition; if the storage time of the first TS packet of any scheduling queue is less than the preset buffering time, determining the first TS of the scheduling queue The package does not meet the scheduling conditions.
  • the information configuration module 31 is further configured to configure the second information mapping table and the third information mapping table to the data scheduling module 34.
  • the data scheduling module 34 further includes: an identifier generating unit 34 3 and a queue output unit 344, wherein:
  • the information obtaining unit 34 1 is further configured to obtain output information corresponding to any scheduling queue from the second information mapping table by using a single program transport stream identifier of any scheduling queue, where the second information mapping table is a single program transport stream identifier.
  • the identifier generating unit 34 3 is configured to generate an output identifier of at least one scheduling queue according to the output information corresponding to any scheduling queue acquired by the information acquiring unit 34 1 .
  • the information obtaining unit 34 1 is further configured to obtain, from the third information mapping table, output channel information corresponding to each of the output identifiers of the at least one scheduling queue, where the third information mapping table is output identifier and output channel information.
  • the information mapping table, the output channel information includes the output channel number.
  • the queue output unit 344 is further configured to output any scheduling queue according to the output channel information corresponding to each output identifier acquired by the information acquiring unit 34 1 .
  • the identifier generating unit 34 3 is specifically configured to: if at least two times the number of times that the scheduling queue needs to be output, generate at least two according to the single program transport stream identifier of any scheduling queue acquired by the information acquiring unit 34 1 An output identifier of any of the scheduling queues; or, if the number of times that any of the scheduling queues needs to be outputted is once, generating one of the scheduling queues according to the single program transport stream identifier of any scheduling queue acquired by the information acquiring unit 34 1 Output ID.
  • the information configuration module 31 is further configured to configure the fourth information mapping table to the identifier obtaining module 32.
  • the identifier obtaining module 32 is specifically configured to: parse at least one input data packet, obtain packet header information and a TS packet of each input data packet; and acquire each input data packet from the fourth information mapping table according to the packet header information of each input data packet.
  • the queue management module 3 3 is specifically configured to: create a storage space for each single program transport stream identifier in the first information mapping table; and store each TS packet in the at least one TS packet into each TS packet separately Corresponding storage space of the single program transport stream identifier; generating a corresponding scheduling queue according to the TS packets stored in the storage space of each single program transport stream identifier in the first information mapping table.
  • the video data processing apparatus uniformly manages a scheduling queue created according to a single program transport stream identifier in the first information mapping table for all TS packets input, and a unified scheduling of all TS packets to be scheduled. And select at least one output channel to output each TS packet output, thereby realizing the output of the multi-output channel of the video data.
  • FIG. 5 is a schematic structural diagram of a video data processing apparatus according to another embodiment of the present invention.
  • the video data processing apparatus is used to implement the video data processing method, and the video data processing apparatus may be a multiplexing module in a QAM device.
  • the video data processing apparatus 4 includes a processor 4 1 , a memory 4 2, a communication interface 43 and a bus 44.
  • the processor 41 may include an identifier obtaining module 411, a queue management module 412, and a data scheduling module 413.
  • the processor 41 further includes an information configuration module 414 configured with data required for other modules in the processor 41.
  • the information configuration module 414 is configured to configure the first information mapping table to the identifier obtaining module 32 and the queue management module 33.
  • the identifier obtaining module 411 is configured to acquire a multi-program transport stream identifier of each TS packet in the at least one TS packet.
  • the identifier obtaining module 411 is further configured to acquire, by the first information mapping table configured by the information configuration module 411, the single program transport stream identifier of each TS packet by using the multi-program transport stream identifier of each TS packet, where the first information is
  • the mapping table is a mapping relationship table between the multi-program transport stream identifier and the single program transport stream identifier.
  • the queue management module 412 is configured to create at least one scheduling queue for the at least one TS packet according to the single program transport stream identifier in the first information mapping table configured by the information configuration module 41, 4, wherein each of the first information mapping table The single program transport stream identifiers correspond to one dispatching team ⁇
  • the data scheduling module 413 is configured to select any scheduling team ⁇
  • the data scheduling module 413 is further configured to: if the first TS packet of any scheduling queue meets the scheduling condition, select at least one output channel according to the single program transport stream identifier of any scheduling queue, and output any scheduling queue, and continue to determine other The first TS packet of the queue is scheduled until all the scheduling queues have been judged.
  • the data scheduling module 413 is further configured to: if the first TS packet of any scheduling queue does not meet the scheduling condition, skip any scheduling queue, and continue to determine the first TS packet of the other scheduling queue, until all scheduling queues All judged.
  • the data scheduling module 413 includes: an information acquiring unit and a condition determining unit, where:
  • the information obtaining unit is configured to acquire, according to the enqueue time and the scheduling time of the first TS packet of any scheduling queue, the storage time of the first TS packet of any scheduling queue stored in the storage space, where the enrollment time is The first TS packet of a scheduling queue is generated when it is allocated to the storage space, and the scheduling time is generated when the first TS packet of any scheduling queue is scheduled. Into.
  • condition determining unit configured to determine the first of any scheduling queue acquired by the information acquiring unit
  • the storage time of the TS packet is less than the preset buffer time; if the storage time of the first TS packet of any scheduling queue is greater than or equal to the preset buffer time, it is determined that the first TS packet of the scheduling queue satisfies the scheduling condition; If the storage time of the first TS packet of the scheduling queue is less than the preset buffer time, it is determined that the first TS packet of the scheduling queue does not satisfy the scheduling condition.
  • the information configuration module 41 4 is further configured to configure the second information mapping table and the third information mapping table to the data scheduling module 41 3 .
  • the data scheduling module 41 3 further includes: an identifier generating unit and a queue output unit, wherein: the information acquiring unit is further configured to obtain, by using the single program transport stream identifier of any scheduling queue, any scheduling queue corresponding to the second information mapping table.
  • the output information where the second information mapping table is a mapping relationship between the single program transport stream identifier and the output information, and the output information includes the number of times the scheduling queue needs to be output.
  • the identifier generating unit is configured to generate an output identifier of the at least one scheduling queue according to the output information corresponding to any scheduling queue acquired by the information acquiring unit.
  • the information acquiring unit is further configured to: obtain, from the third information mapping table, output channel information corresponding to each of the output identifiers of the output identifiers of the at least one scheduling queue, where the third information mapping table is the information of the output identifier and the output channel information.
  • the output channel information includes an output channel number
  • the queue output unit is further configured to output any scheduling queue according to the output channel information corresponding to each output identifier acquired by the information acquiring unit.
  • the identifier generating unit is specifically configured to: if any of the scheduling queues need to be outputted at least twice, generate at least two schedulings according to the single program transport stream identifier of any scheduling queue acquired by the information acquiring unit.
  • the information configuration module 41 4 is further configured to configure the fourth information mapping table to the identifier obtaining module 41 1 .
  • the identifier obtaining module 41 1 is specifically configured to: parse at least one input data packet, obtain packet header information and a TS packet of each input data packet; and acquire each input data from the fourth information mapping table according to the packet header information of each input data packet.
  • the fourth information mapping table is a mapping relationship table between the packet header information and the multi-program transport stream identifier.
  • the queue management module 41 2 is specifically configured to: create a storage space for each single program transport stream identifier in the first information mapping table; and store each TS packet in the at least one TS packet into each TS packet. Corresponding storage space of the single program transport stream identifier; generating a corresponding scheduling queue according to the TS packets stored in the storage space of each single program transport stream identifier in the first information mapping table.
  • the video data processing apparatus uniformly manages a scheduling queue created according to a single program transport stream identifier in the first information mapping table for all TS packets input, and a unified scheduling of all TS packets to be scheduled. And select at least one output channel to output each TS packet output, thereby realizing the output of the multi-output channel of the video data.

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  • Engineering & Computer Science (AREA)
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  • Television Systems (AREA)

Abstract

本发明的实施例提供一种视频数据处理方法及装置,涉及通信领域,能够实现任意视频数据的多输出通道的输出。该方法包括:获取至少一个TS 包中的每个TS 包的多节目传输流标识;根据每个TS包的多节目传输流标识从第一信息映射表中获取每个TS 包的单节目传输流标识;根据第一信息映射表中的单节目传输流标识为至少一个 TS 包创建至少一个调度队列;选择任一调度队列,判断任一调度队列的第一TS 包是否满足调度条件;若满足,根据任一调度队列的单节目传输流标识选择至少一个输出通道将任一调度队列输出,并继续判断其他调度队列的第一TS 包,直到所有调度队列全部判断完。本发明应用于视频数据的传输。

Description

一种视频数据处理方法及装置 本申请要求于 2013 年 06 月 27 日提交中国专利局、 申请号为 201310263639.4、 发明名称为 "一种视频数据处理方法及装置" 的中国专利申 请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域, 尤其涉及一种视频数据处理方法及装置。
背景技术
目前, 由于现有的视频节目格式既有 MPTS ( Multiple Program Transport Stream, 多节目传输 ) 格式 (比^口来自卫星接 ^:机设备、 复用器设备) , 也有 SPTS (Single Program Transport Stream, 单节 目传输流)格式(比如来自编码器设备), 因此, 需要 QAM ( Quadrature amplitude modula t ion,正交幅度调制)设备或复用器设备对输入的 SPTS 进行复用或对输入的 MPTS 先解复用后再重新复用处理, 来适应不同带 宽的传输网络。 现今, BTV ( Broadcast TV, 广播电视) 的广播节目一 般是先通过复用器将不同来源的 MPTS或 SPTS格式码流复用为 MPTS,然 后通过 IP (Internet Protocol, 网际协议)网络传送给 QAM 设备, QAM 设备对该 MPTS釆用直通 (pass-through) 方式输出, 也就是 QAM的输 入节目和输出节目是完全一致的。而对于 SDV (Switched Digital Video, 交互数字电视) 、 V0D( Video On Demand , 视频点播)服务器及 M-CMTS (modular cable modem termination system, 模块化的电缆调 制解调器系统)等所输入到 QAM中的 SPTS格式码流或 DATA数据流, QAM 分别将其复用到不同的服务分区中。 其中, 每个 V0D和 DATA流对应唯 一的服务分区, 而 SDV流则会对应多个服务分区。此外,新一代的 UEQAM ( Universal Edge QAM,通用边缘 QAM )或 CCAP( Converged Cable Access Platform,融合优先接入平台)架构的 QAM则能够支持上述的所有业务, 但对于 BTV或 SDV的业务, 仍需要前面复用器的配合将 BTV的节目源复 用为 MPTS, 将 SDV的节目源解复用为 SPTS, UEQAM可以完成整个 MPTS 或 SPTS的节目流复制。
但是,在实现上述视频数据处理的过程中,发明人发现,在现有的 QAM 设备中, 某个 QAM输出通道的节目源只能是固定的 SPTS或 MPTS节目源, 而不能是任意 SPTS或 MPTS节目源, 并且不能将输入 MPTS输入源中的多 个 SPTS复用或复制到多个输出通道。
发明内容
本发明的实施例提供一种视频数据处理方法及装置, 能够实现任意 视频数据的多输出通道的输出。
为达到上述目的, 本发明的实施例釆用如下技术方案:
第一方面, 提供一种视频数据处理方法, 包括:
获取至少一个传输流 TS包中的每个 TS包的多节目传输流标识; 通过所述每个 TS 包的多节目传输流标识依次从第一信息映射表中 获取所述每个 TS 包的单节目传输流标识, 其中, 所述第一信息映射表 为多节目传输流标识与单节目传输流标识的映射关系表;
根据所述第一信息映射表中的单节目传输流标识为所述至少一个
TS包创建至少一个调度队列, 其中, 所述第一信息映射表中的每个单节 目传输流标识分别对应一个调度队列;
选择任一调度队列, 判断所述任一调度队列的第一 TS 包是否满足 调度条件;
若所述任一调度队列的第一 TS 包满足所述调度条件, 则根据所述 任一调度队列的单节目传输流标识选择至少一个输出通道将所述任一 调度队列输出, 并继续判断其他调度队列的第一 TS 包, 直到所有调度 队列全部判断完。
在第一种可能的实现方式中, 根据第一方面, 所述判断所述任一调 度队列的第一 TS包是否满足调度条件之后, 还包括:
若所述任一调度队列的第一 TS 包不满足所述调度条件, 则跳过所 述任一调度队列, 继续判断其他调度队列的第一 TS 包, 直到所有调度 队列全部判断完。
在第二种可能的实现方式中, 根据第一种可能的实现方式, 所述判 断所述任一调度队列的第一 TS包是否满足调度条件包括:
根据所述任一调度队列的第一 TS 包的入队时间及调度时间, 获取 所述任一调度队列的第一 TS 包存储在存储空间中的存储时间, 其中, 所述入队时间为所述任一调度队列的第一 TS 包在被分配到存储空间中 时生成的, 所述调度时间为对所述任一调度队列的第一 TS 包进行调度 时所生成的;
判断所述任一调度队列的第一 TS 包的存储时间是否小于预设的緩 存时间;
若所述任一调度队列的第一 TS 包的存储时间大于或等于预设的緩 存时间, 则判断所述调度队列的满足调度条件;
若所述任一调度队列的第一 TS 包的存储时间是小于预设的緩存时 间, 则判断所述调度队列的不满足调度条件。
在第三种可能的实现方式中, 根据第二种可能的实现方式, 所述根 据所述任一调度队列的单节目传输流标识选择至少一个输出通道将所 述任一调度队列输出包括:
通过所述任一调度队列的单节目传输流标识从第二信息映射表中 获取所述任一调度队列对应的输出信息, 其中, 所述第二信息映射表为 单节目传输流标识与输出信息的映射关系表, 所述输出信息包括所述调 度队列需要输出的次数;
根据所述任一调度队列对应的输出信息生成至少一个所述任一调 度队列的输出标识;
从第三信息映射表中获取所述至少一个所述任一调度队列的输出 标识中的每个输出标识对应的输出通道信息, 所述第三信息映射表为输 出标识与输出通道信息的信息映射表, 所述输出通道信息包括输出通道 号;
根据所述每个输出标识对应的输出通道信息将所述任一调度队列 输出。
在第四种可能的实现方式中, 根据第三种可能的实现方式, 所述根 据所述任一调度队列对应的输出信息生成至少一个所述任一调度队列 的输出标识, 包括:
若所述任一调度队列需要输出的次数为至少两次时, 则根据所述任 一调度队列的单节目传输流标识生成至少两个任一调度队列的输出标 识;
或者,
若所述任一调度队列需要输出的次数为一次时, 则根据所述任一调 度队列的单节目传输流标识生成一个任一调度队列的输出标识。 在第五种可能的实现方式中, 根据第一方面, 所述获取至少一个 TS 包中的每个 TS包的多节目传输流标识包括:
解析至少一个输入数据包, 得到每个输入数据包的包头信息及 TS 包;
根据所述每个输入数据包的包头信息从第四信息映射表中获取所 述每个输入数据包的 TS 包对应的多节目传输流标识, 其中, 所述第四 信息映射表为包头信息与多节目传输流标识的映射关系表。
在第六种可能的实现方式中, 根据第一方面, 所述根据所述第一信 息映射表中的单节目传输流标识为所述至少一个 TS 包创建至少一个调 度队列包括:
为所述第一信息映射表中的每个单节目传输流标识创建一个存储 空间;
将所述至少一个 TS 包中每个 TS 包分别存入所述每个 TS 包对应的 单节目传输流标识的存储空间;
根据所述第一映射表中的每个单节目传输流标识的存储空间中所 存储的 TS包, 生成对应的调度队列。
第二方面, 提供一种视频数据处理装置, 其特征在于, 包括: 信息配置模块, 用于向标识获取模块和队列管理模块配置第一信息 映射表;
所述标识获取模块, 用于获取至少一个传输流 TS包中的每个 TS包 的多节目传输流标识;
所述标识获取模块, 还用于通过所述每个 TS 包的多节目传输流标 识依次从所述信息配置模块配置的所述第一信息映射表中获取所述每 个 TS 包的单节目传输流标识, 其中, 所述第一信息映射表为多节目传 输流标识与单节目传输流标识的映射关系表;
队列管理模块, 用于根据所述信息配置模块配置的所述第一信息映 射表中的单节目传输流标识为所述至少一个 TS 包创建至少一个调度队 歹 |J , 其中, 所述第一信息映射表中的每个单节目传输流标识分别对应一 个调度队列;
数据调度模块, 用于选择所述队列管理模块生成的任一调度队列, 并判断所述任一调度队列的第一 TS包是否满足调度条件; 所述数据调度模块, 还用于若所述任一调度队列的第一 TS 包满足 所述调度条件, 则根据所述任一调度队列的单节目传输流标识选择至少 一个输出通道将所述任一调度队列输出, 并继续判断其他调度队列的第 一 TS包, 直到所有调度队列全部判断完。
在第一种可能的实现方式中, 根据第二方面, 所述装置还包括: 所述数据调度模块, 还用于若所述任一调度队列的第一 TS 包不满 足所述调度条件, 则跳过所述任一调度队列, 继续判断其他调度队列的 第一 TS包, 直到所有调度队列全部判断完。
在第二种可能的实现方式中, 根据第一种可能的实现方式, 所述数 据调度模块包括:
信息获取单元, 用于根据所述任一调度队列的第一 TS 包的入队时 间及调度时间, 获取所述任一调度队列的第一 TS 包存储在存储空间中 的存储时间, 其中, 所述入队时间为所述任一调度队列的第一 TS 包在 被分配到存储空间中时生成的, 所述调度时间为对所述任一调度队列的 第一 TS包进行调度时所生成的;
条件判断单元, 用于判断所述信息获取单元获取的所述任一调度队 列的第一 TS包的存储时间是否小于预设的緩存时间; 若所述第一 TS包 的存储时间大于或等于预设的緩存时间,则判断所述调度队列的第一 T S 包满足调度条件; 若所述任一调度队列的第一 TS 包的存储时间是小于 预设的緩存时间, 则判断所述调度队列的第一 TS包不满足调度条件。
在第三种可能的实现方式中, 根据第二种可能的实现方式:
所述信息配置模块, 还用于向所述数据调度模块配置第二信息映射 表和第三信息映射表;
所述数据调度模块, 还包括:
所述信息获取单元, 还用于通过所述任一调度队列的单节目传输流 标识从第二信息映射表中获取所述任一调度队列对应的输出信息, 其中, 所述第二信息映射表为单节目传输流标识与输出信息的映射关系表, 所 述输出信息包括所述调度队列需要输出的次数;
标识生成单元, 用于根据所述信息获取单元获取的所述任一调度队 列对应的输出信息生成至少一个所述任一调度队列的输出标识;
所述信息获取单元, 还用于从第三信息映射表中获取所述至少一个 所述任一调度队列的输出标识中的每个输出标识对应的输出通道信息, 所述第三信息映射表为输出标识与输出通道信息的信息映射表, 所述输 出通道信息包括输出通道号;
队列输出单元, 还用于根据所述信息获取单元获取的所述每个输出 标识对应的输出通道信息将所述任一调度队列输出。
在第四种可能的实现方式中, 根据第三种可能的实现方式, 所述标 识生成单元具体用于: 若所述任一调度队列需要输出的次数为至少两次 时, 则根据所述信息获取单元获取的所述任一调度队列的单节目传输流 标识生成至少两个任一调度队列的输出标识; 或者, 若所述任一调度队 列需要输出的次数为一次时, 则根据所述信息获取单元获取的所述任一 调度队列的单节目传输流标识生成一个任一调度队列的输出标识。
在第五种可能的实现方式中, 根据第二方面:
所述信息配置模块, 还用于向所述标识获取模块配置第四信息映射 表;
所述标识获取模块具体用于: 解析至少一个输入数据包, 得到每个 输入数据包的包头信息及 TS 包; 根据所述每个输入数据包的包头信息 从所述第四信息映射表中获取所述每个输入数据包的 TS 包对应的多节 目传输流标识, 其中, 所述第四信息映射表为包头信息与多节目传输流 标识的映射关系表。
在第六种可能的实现方式中, 根据第二方面, 所述队列管理模块具 体用于: 为所述第一信息映射表中的每个单节目传输流标识创建一个存 储空间; 将所述至少一个 TS 包中每个 TS 包分别存入所述每个 TS 包对 应的单节目传输流标识的存储空间; 根据所述第一信息映射表中的每个 单节目传输流标识的存储空间中所存储的 TS包,生成对应的调度队列。
本发明实施例提供的视频数据处理方法及装置, 通过统一管理根据第 一信息映射表中的单节目传输流标识为所输入的所有 TS 包创建的调度队 歹 |J , 以及对所有待调度的 TS 包的统一调度, 并在每个调度队列需要将该 调度队列中的 TS 包输出时, 选择至少一个输出通道将其输出, 从而实现 视频数据的多输出通道的输出。
附图说明
图 1为本发明的实施例提供的一种视频数据处理方法的流程示意图; 图 2为本发明的实施例提供的另一种视频数据处理方法的流程示意 图;
图 3为本发明的实施例提供的一种视频数据处理装置的结构示意图; 图 4为本发明的实施例提供的另一种视频数据处理装置的结构示意 图;
图 5为本发明的另一实施例提供的一种视频数据处理装置的结构示意 图。
具体实施方式
下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案 进行清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实 施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技术 人员在没有做出创造性劳动前提下所获得的所有其他实施例, 都属于本 发明保护的范围。
目前, 数字视频普遍釆用 TS ( Transport Stream, 传输流) 格式进 行传输, TS流包括 SPTS (Single Program Transport Stream, 单节目 传输流)和 MPTS ( Multiple Program Transport Stream, 多节目传输流 ) 两种形式, SPTS 是单个节目的传输流, 由压缩的视频流和音频流组成; MPTS是多个节目的传输流, 由多个 SPTS组成。 为了用于不同网络的传 输 (比如 HFC ( Hybrid fibre-coaxial, 混合光纤同轴) 、 卫星、 地面 广播等) , 广播节目流一般都釆用恒定码率的 MPTS 传输格式。 由于现 有的节目格式既有 MPTS格式(比如来自卫星接收机设备、复用器设备)、 也有 SPTS 格式 (比如来自编码器设备) , 因此需要 QAM ( Quadrature amplitude modula t ion,正交幅度调制)设备或复用器设备对输入的 SPTS 进行复用或对输入的 MPTS 先解复用后再重新复用处理, 以适应不同带 宽的传输网络。其中, QAM设备具体可用于数字电视( BTV( Broadcast TV, 广播电视) ) 、 交互数字电视 ( Switched Digital Video, SDV ) 、 视 频点播( Video On Demand , V0D )、宽带数据( DOCSIS ( Data-Over-Cable Service Interface Specifications , 有线电缆数据服务接口规范) ) 等领域; 复用器具体可用于 BTV和 SDV等领域。 而本发明中所提到的视 频数据具体包括广播业务数据、 点播业务数据及网络数据业务数据这三 类数据。具体的,基于现有技术中 Q A M设备所支持的输入格式是固定的, 只能支持输入固定的 SPTS或 MPTS节目源, 且不支持输入 MPTS的输入 源中的 SPTS 复制到多个输出通道这一应用场景, 本发明提供了一种视 频数据处理方法。
如图 1所示, 该视频数据处理方法包括如下步骤:
1 01、 视频数据处理装置获取至少一个传输流 TS 包中的每个 TS 包 的多节目传输流标识。
1 02、 视频数据处理装置通过每个 TS包的多节目传输流标识依次从 第一信息映射表中获取每个 TS包的单节目传输流标识。
其中, 上述第一信息映射表为多节目传输流标识与单节目传输流标 识的映射关系表, 具体的, 每个 TS 包都有一个单节目传输流标识与之 对应, 且不同的 TS包对应的单节目传输流标识可能相同。
1 03、 视频数据处理装置根据第一信息映射表中的单节目传输流标 识为至少一个 TS包创建至少一个调度队列。
其中, 第一信息映射表中的每个单节目传输流标识分别对应一个调 度队列,具体的, 由于不同的 TS包对应的单节目传输流标识可能相同, 因此, 这里调度队列的个数是根据第一信息映射表来设置的, 可以避免 同一个单节目传输流标识重复设置调度队列, 因此, 此时将具有相同单 节目传输流标识的 TS 包按顺序分配到该单节目传输流标识的调度队列 中。
1 04、 视频数据处理装置选择任一调度队列, 判断任一调度队列的 第一 TS包是否满足调度条件。
需要说明的是, 在对调度队列进行调度时, 视频数据处理装置即可 以随意选取任一调度队列进行调度, 也可以提前按照预设的调度顺序对 调度队列进行调度, 由于前一种调度方式包括后一种调度方式, 因此本 实施例将在后续实施例中对前一种调度方式进行具体的叙述, 这里不再 详述。
具体的, 由于每个调度队列中存储的 TS 包相互之间是有联系的, 因此, 这里只需对每个调度队列的第一 TS 包进行判断, 便可获知该调 度队列是否满足调度条件。
在步骤 1 04之后, 若任一调度队列的第一 TS 包满足调度条件, 则 转向步骤 1 05 , 若任一调度队列的第一 TS包不满足调度条件, 则转向步 骤 1 06。 105、 若任一调度队列的第一 TS包满足调度条件, 则视频数据处理 装置根据任一调度队列的单节目传输流标识选择至少一个输出通道将 任一调度队列输出, 并继续判断其他调度队列的第一 TS 包, 直到所有 调度队列全部判断完。
106、 若任一调度队列的第一 TS包不满足调度条件, 则视频数据处 理装置跳过该任一调度队列, 继续判断其他调度队列的第一 TS 包, 直 到所有调度队列全部判断完。
本发明实施例提供的视频数据处理方法, 通过统一管理根据第一信 息映射表中的单节目传输流标识为所输入的所有 TS包创建的调度队列, 以及对所有待调度的 TS 包的统一调度, 并在每个调度队列需要将该调 度队列中的 TS 包输出时, 选择至少一个输出通道将其输出, 从而实现 视频数据的多输出通道的输出。
本发明的实施例提供另一种视频数据处理方法, 如图 2所示, 该方 法包括如下步骤:
201、 视频数据处理装置获取至少一个传输流 TS 包中的每个 TS 包 的多节目传输流标识。
可选的, 步骤 201具体包括如下步骤:
201a, 视频数据处理装置解析至少一个输入数据包, 得到每个输入 数据包的包头信息及 TS包。
201b, 视频数据处理装置根据每个输入数据包的包头信息从第四信 息映射表中获取每个输入数据包的 TS包对应的多节目传输流标识。
其中, 该第四信息映射表为输入数据包的包头信息与多节目传输流 标识的映射关系表, 具体的, 上述的多节 目传输流标识可以用 mpts-index表示。上述的包头信息具体包括但不限于: MAC( Media Access Control, 介质访问控制) 值、 UDP ( User Datagram Protocol, 用户数 据报协议) 值及 IP值。
具体的, 视频数据处理装置在接收到输入的至少一个 MPTS 报文数 据包后,首先解析该至少一个 MPTS报文数据包,提取出该至少一个 MPTS 报文数据包的二层、 三层、 四层包头信息和至少一个 TS 包, 并为每个 TS 包添加一个包描述符信息, 最后根据每个 MPTS报文数据包的包头信 息从第四信息映射表中获取每个 TS包对应的多节目传输流标识,并将每 个 TS 包对应的多节目传输流标识添加到每个 TS 包的包描述符信息中, 以便后续应用。 需要说明的是, 并不是每个 MPTS 报文数据包解析出的 TS包都可在第四信息映射表中查找到对应的多节目传输流标识,若查找 失败, 则将该 TS 包丟弃, 而本发明中所提到的至少一个输入数据包指 的是可以在第四信息映射表查询到的多节目传输流标识的 MPTS 报文数 据包。
2 02、 视频数据处理装置通过每个 TS包的多节目传输流标识依次从 第一信息映射表中获取每个 TS包的单节目传输流标识。
其中, 上述第一信息映射表为多节目传输流标识与单节目传输流标 识的映射关系表, 且一个多节目传输流标识可以对应至少一个单节目传 输流标识,具体的,上述的单节目传输流标识可以用 s p t s - i ndex表示。
具体的, 视频数据处理装置将通过每个 TS 包的多节目传输流标识 依次从第一信息映射表中查表得到的每个 TS 包的单节目传输流标识添 加到包描述符信息中, 以便后续应用。
2 03、 视频数据处理装置根据第一信息映射表中的单节目传输流标 识为至少一个 TS包创建至少一个调度队列。
其中, 第一信息映射表中的每个单节目传输流标识分别对应一个调 度队列,具体的, 由于不同的 TS包对应的单节目传输流标识可能相同, 因此, 这里调度队列的个数是根据第一信息映射表来设置的, 可以避免 同一个单节目传输流标识重复设置调度队列, 因此, 此时将具有相同单 节目传输流标识的 TS 包按顺序分配到该单节目传输流标识的调度队列 中。
可选的, 步骤 2 03具体包括如下步骤:
2 03a , 视频数据处理装置为第一信息映射表中的每个单节目传输流 标识创建一个存储空间。
2 03b , 视频数据处理装置将至少一个 TS包中每个 TS包分别存入每 个 TS包对应的单节目传输流标识的存储空间。
2 03 c , 视频数据处理装置根据第一映射表中的每个单节目传输流标 识的存储空间中所存储的 TS包, 生成对应的调度队列。
具体的, 视频数据处理装置预先为预设的第一信息映射表中的每个 单节目传输流标识创建一个存储空间, 并在接收到至少一个 TS 包时, 按照每个 TS包的单节目传输流标识将该至少一个 TS包分别存储到该单 节目传输流标识对应的存储空间中, 然后将每个存储空间中的 TS 包分 别组成一组调度队列, 使得不同的视频节目对应的调度队列分离维护。 同时, 完成 TS 包入队处理。 同时, 需要说明的是, 每个单节目传输流 标识对应的调度队列所存储的 TS 包对应的是同一个视频节目的数据, 并按照视频节目的输出的时间先后将对应的 TS 包进行排序, 即按照每 个 TS 包输入存储空间时的时间排序, 以保证视频节目在输出时, 按照 其正常的节目时间顺序输出。
2 04、 视频数据处理装置选择任一调度队列, 判断任一调度队列的 第一 TS包是否满足调度条件。
具体的, 由于每个调度队列中存储的 TS 包相互之间是有联系的, 因此, 这里只需对每个调度队列的第一 TS 包进行判断, 便可获知该调 度队列是否满足调度条件。
可选的, 步骤 2 04具体包括如下步骤:
2 04 a , 视频数据处理装置根据任一调度队列的第一 TS 包的入队时 间及调度时间, 获取任一调度队列的第一 TS 包存储在存储空间中的存 储时间。
其中, 该入队时间为任一调度队列的第一 TS 包在被分配到存储空 间中时生成的, 调度时间为对任一调度队列的第一 TS 包进行调度时所 生成的。
具体的, 当上述的任一调度队列的第一 TS包在得到该第一 TS包的 多节目传输流标识时, 同时还需要根据该第一 TS 包的多节目传输流标 识开启一个定时器, 该定时器用于当该第一 TS 包在被分配到该第一 TS 包的单节目传输流标识对应的存储空间中时, 标记一个入队时间信息, 同时将该入队时间信息添加到该第一 TS 包的包描述符信息中, , 以便 后续使用,还用于在对该第一 TS进行调度时,标记一个调度时间信息, 也可以说是该第一 TS 包的跟踪时间信息, 即定时器当前的时间信息, 同时将该调度时间信息添加到该第一 TS 包的包描述符信息中, 以便后 续使用。
2 04 b , 视频数据处理装置判断任一调度队列的第一 TS 包的存储时 间是否小于预设的緩存时间。
具体的, 若任一调度队列的第一 TS 包的存储时间大于或等于预设 的緩存时间, 则判断该任一调度队列满足调度条件; 若任一调度队列的 第一 TS 包的存储时间是小于预设的緩存时间, 则判断该任一调度队列 不满足调度条件。
具体的, 在对上述的至少一个调度队列进行统一调度时, 可以选择 如上述步骤所述的首先从上述至少一个调度队列中挑选出一个任一调 度队列, 判断该任意调度队列是否满足调度条件, 若满足, 则选择下一 调度队列进行判断, 直到所有调度队列全部判断完。 此外, 还可以选择 分离维护和调度, 即同时判断该至少一个调度队列中所有调度队列, 只 要达到调度条件便将其存储的 TS包按照存储顺序输出。
在步骤 204之后, 若任一调度队列的第一 TS 包满足调度条件, 则 转向步骤 205 , 若任一调度队列的第一 TS包不满足调度条件, 则转向步 骤 206。
205、 若任一调度队列的第一 TS包满足调度条件, 则视频数据处理 装置根据任一调度队列的单节目传输流标识选择至少一个输出通道将 任一调度队列输出, 并继续判断其他调度队列的第一 TS 包, 直到所有 调度队列全部判断完。
具体的, 步骤 205中的视频数据处理装置根据任一调度队列的单节 目传输流标识选择至少一个输出通道将任一调度队列输出, 具体包括如 下步骤:
205a、 视频数据处理装置通过任一调度队列的单节目传输流标识从 第二信息映射表中获取任一调度队列对应的输出信息。
其中, 该第二信息映射表为单节目传输流标识与输出信息的映射关 系表, 该输出信息包括调度队列需要输出的次数。
具体的, 上述的输出标识可以用 ou t- i ndex表示。
205b , 视频数据处理装置根据任一调度队列对应的输出信息生成至 少一个任一调度队列的输出标识。
进一步可选的, 该步骤 205b具体包括:
a l、 若任一调度队列需要输出的次数为至少两次时, 则视频数据处 理装置根据任一调度队列的单节目传输流标识生成至少两个任一调度 队列的输出标识。
或者, bl、 若任一调度队列需要输出的次数为一次时, 则视频数据处理装 置根据任一调度队列的单节目传输流标识生成一个任一调度队列的输 出标识。
205c、 视频数据处理装置从第三信息映射表中获取至少一个任一调 度队列的输出标识中的每个输出标识对应的输出通道信息。
其中, 该第三信息映射表为输出标识与输出通道信息的信息映射表 , 该输出通道信息包括但不限于输出通道号。
205d、 视频数据处理装置根据每个输出标识对应的输出通道信息将 任一调度队列输出。
具体的, 这里的单节目传输流标识以 spts-index 为例, 输出标识 以 out-index为例。 因此, 若该任一调度队列的第一 TS 包满足调度条 件, 则首先从该任一调度队列的第一 TS 包的包描述符信息中提取出 spts-index, 并根据该任一调度队列的第一 TS包的 spts-index从第二 信息映射表中查询出是否需要复制, 若需要复制则需要复制的次数是多 少。 具体的, 若该任一调度队列不需要复制, 则使得 out-index = spts-index, 然后, 从从第三信息映射表中查找到该任一调度队列的 out-index所对应的输出通道的通道号, 直接将该任一调度队列中的 TS 包输出; 若该任一调度队列需要复制, 则根据获取到的需要复制的次数 N( N>1 )生成 N个不同的 out-index,具体的,该生成 N个不同的 out-index 的方法具体是:将该 spts-index与 [0: N-1]进行拼接,例如复制次数 N=3, 刃 生成 3 个 out-index 分另 ll为 {spts— index, 0}、 {spts-index, 1} , {spts-index, 2},并^ 1该任一调度队列复制 3份。 j¾时,在完成 out- index 的生成与调度队列的复制之后, 将该新生成的 out-index添加到包描述 符信息中, 以便后续的应用。 最后, 根据生成的该任一调度队列的 out-index 从第三信息映射表中查找到该任一调度队列的三个 out-index 所对应的三个输出通道的通道号, 最后, 将该任一调度队列 通过该三个输出通道号所找到的三个输出通道同时输出。
此外, 若是多节目传输流标识以 mpts-index 为例, 单节目传输流 标识以 spts-index为例, 输出标识以 out-index为例。 那 mpts-index i'J spts-index 々映射中, 具体 mpts-index和 spts-index西己合完成 对列管理和队列调度, 实现了解复用, 而 spts-index到 out-index 的 映射, 实现了流复用。 206、 若任一调度队列的第一 TS包不满足调度条件, 则视频数据处 理装置跳过任一调度队列, 继续判断其他调度队列的第一 TS 包, 直到 所有调度队列全部判断完。
207、 视频数据处理装置继续判断其他调度队列的第一 TS包, 直到 所有调度队列全部判断完。
具体的, 在所有的调度队列全部判断完之后, 再循环进行新一轮的 判断过程。
需要说明的, 在本发明的实施例中所提到的第一信息映射表、 第二 信息映射表、 第三信息映射表和第四信息映射表是可以根据实际情况动 态的进行配置和修改。
本发明实施例提供的视频数据处理方法, 通过统一管理根据第一信 息映射表中的单节目传输流标识为所输入的所有 TS包创建的调度队列, 以及对所有待调度的 TS 包的统一调度, 并在每个调度队列需要将该调 度队列中的 TS 包输出时, 选择至少一个输出通道将其输出, 从而实现 视频数据的多输出通道的输出。
本发明的实施例提供一种视频数据处理装置, 如图 3所示, 该视频 数据处理装置用于实现上述的视频数据处理方法, 且该视频数据处理装 置可以看作是 QAM 设备中的复用模块, 而现有的 QAM ( Quadrature amplitude modulation, 正交幅度调制)设备包括: UEQAM ( Universal Edge QAM, 通用边缘 QAM ) 、 EQAM ( Edge QAM, 边缘 QAM ) 也称 IPQAM 及传统 QAM, 该视频数据处理装置 3包括: 信息配置模块 31、 标识获取 模块 32、 队列管理模块 33和数据调度模块 34, 其中:
信息配置模块 31,用于向标识获取模块 32和队列管理模块 33配置 第一信息映射表。
标识获取模块 32,用于获取至少一个 TS包中的每个 TS包的多节目 传输流标识。
标识获取模块 32, 还用于通过每个 TS 包的多节目传输流标识依次 从信息配置模块 31配置的第一信息映射表中获取每个 TS包的单节目传 输流标识, 其中, 第一信息映射表为多节目传输流标识与单节目传输流 标识的映射关系表。
队列管理模块 33, 用于根据信息配置模块 31 配置的第一信息映射 表中的单节目传输流标识为至少一个 TS 包创建至少一个调度队列, 其 中, 第一信息映射表中的每个单节目传输流标识分别对应一个调度队列。
数据调度模块 34 ,用于选择队列管理模块 3 3生成的任一调度队列, 并判断任一调度队列的第一 TS包是否满足调度条件。
数据调度模块 34 , 还用于若任一调度队列的第一 TS 包满足调度条 件, 则根据任一调度队列的单节目传输流标识选择至少一个输出通道将 任一调度队列输出, 并继续判断其他调度队列的第一 TS 包, 直到所有 调度队列全部判断完。
可选的, 数据调度模块 34 , 还用于若任一调度队列的第一 TS 包不 满足调度条件, 则跳过任一调度队列, 继续判断其他调度队列的第一 TS 包, 直到所有调度队列全部判断完。
可选的, 数据调度模块 34 包括: 信息获取单元 34 1 和条件判断单 元 342 , 其中:
信息获取单元 34 1 ,用于根据任一调度队列的第一 TS包的入队时间 及调度时间, 获取任一调度队列的第一 TS 包存储在存储空间中的存储 时间, 其中, 入队时间为任一调度队列的第一 TS 包在被分配到存储空 间中时生成的, 调度时间为对任一调度队列的第一 TS 包进行调度时所 生成的。
条件判断单元 34 2 , 用于判断信息获取单元 34 1获取的任一调度队 列的第一 TS 包的存储时间是否小于预设的緩存时间; 若任一调度队列 的第一 TS 包的存储时间大于或等于预设的緩存时间, 则判断调度队列 的第一 TS包满足调度条件; 若任一调度队列的第一 TS包的存储时间是 小于预设的緩存时间, 则判断调度队列的第一 TS包不满足调度条件。
可选的, 信息配置模块 31 , 还用于向数据调度模块 34配置第二信 息映射表和第三信息映射表。
数据调度模块 34 ,还包括:标识生成单元 34 3和队列输出单元 344 , 其中:
信息获取单元 34 1 , 还用于通过任一调度队列的单节目传输流标识 从第二信息映射表中获取任一调度队列对应的输出信息, 其中, 第二信 息映射表为单节目传输流标识与输出信息的映射关系表, 输出信息包括 所述调度队列需要输出的次数。 标识生成单元 34 3 , 用于根据信息获取单元 34 1获取的任一调度队 列对应的输出信息生成至少一个任一调度队列的输出标识。
信息获取单元 34 1 , 还用于从第三信息映射表中获取至少一个任一 调度队列的输出标识中的每个输出标识对应的输出通道信息, 第三信息 映射表为输出标识与输出通道信息的信息映射表, 输出通道信息包括输 出通道号。
队列输出单元 344 , 还用于根据信息获取单元 34 1获取的每个输出 标识对应的输出通道信息将任一调度队列输出。
可选的, 标识生成单元 34 3具体用于: 若任一调度队列需要输出的 次数为至少两次时, 则根据信息获取单元 34 1获取的任一调度队列的单 节目传输流标识生成至少两个任一调度队列的输出标识; 或者, 若任一 调度队列需要输出的次数为一次时, 则根据信息获取单元 34 1获取的任 一调度队列的单节目传输流标识生成一个任一调度队列的输出标识。
可选的, 信息配置模块 31 , 还用于向标识获取模块 32配置第四信 息映射表。
标识获取模块 32 具体用于: 解析至少一个输入数据包, 得到每个 输入数据包的包头信息及 TS 包; 根据每个输入数据包的包头信息从第 四信息映射表中获取每个输入数据包的 TS包对应的多节目传输流标识, 其中, 第四信息映射表为包头信息与多节目传输流标识的映射关系表。
可选的, 队列管理模块 3 3 具体用于: 为第一信息映射表中的每个 单节目传输流标识创建一个存储空间; 将至少一个 TS包中每个 TS包分 别存入每个 TS 包对应的单节目传输流标识的存储空间; 根据第一信息 映射表中的每个单节目传输流标识的存储空间中所存储的 TS 包, 生成 对应的调度队列。
本发明实施例提供的视频数据处理装置, 通过统一管理根据第一信 息映射表中的单节目传输流标识为所输入的所有 TS包创建的调度队列, 以及对所有待调度的 TS包的统一调度, 并在每个 TS包输出时选择至少 一个输出通道将其输出, 从而实现视频数据的多输出通道的输出。
图 5为本发明的又一实施例提供的视频数据处理装置的结构示意图, 该视频数据处理装置用于实现上述的视频数据处理方法, 且该视频数据 处理装置可以为 QAM设备中的复用模块, 其中, 该视频数据处理装置 4 包括处理器 4 1 , 存储器 4 2、 通信接口 4 3和总线 44。 其中,处理器 41可以包括:标识获取模块 411、队列管理模块 412、 数据调度模块 413, 处理器 41还包括信息配置模块 414为处理器 41 中 其他模块配置所需数据。
其中,上述的处理器 41和存储器 42中的模块具体的实现功能如下。 信息配置模块 414, 用于向标识获取模块 32和队列管理模块 33配 置第一信息映射表。
标识获取模块 411, 用于获取至少一个 TS包中的每个 TS包的多节 目传输流标识。
标识获取模块 411,还用于通过每个 TS包的多节目传输流标识依次 从信息配置模块 411 配置的第一信息映射表中获取每个 TS 包的单节目 传输流标识, 其中, 第一信息映射表为多节目传输流标识与单节目传输 流标识的映射关系表。
队列管理模块 412,用于根据信息配置模块 41, 4配置的第一信息映 射表中的单节目传输流标识为至少一个 TS 包创建至少一个调度队列, 其中, 第一信息映射表中的每个单节目传输流标识分别对应一个调度队 歹 |J。
数据调度模块 413, 用于选择队列管理模块 412生成的任一调度队 歹 |J , 并判断任一调度队列的第一 TS包是否满足调度条件。
数据调度模块 413,还用于若任一调度队列的第一 TS包满足调度条 件, 则根据任一调度队列的单节目传输流标识选择至少一个输出通道将 任一调度队列输出, 并继续判断其他调度队列的第一 TS 包, 直到所有 调度队列全部判断完。
可选的, 数据调度模块 413, 还用于若任一调度队列的第一 TS包不 满足调度条件, 则跳过任一调度队列, 继续判断其他调度队列的第一 TS 包, 直到所有调度队列全部判断完。
可选的, 数据调度模块 413 包括: 信息获取单元和条件判断单元, 其中:
信息获取单元, 用于根据任一调度队列的第一 TS 包的入队时间及 调度时间, 获取任一调度队列的第一 TS 包存储在存储空间中的存储时 间, 其中, 入队时间为任一调度队列的第一 TS 包在被分配到存储空间 中时生成的, 调度时间为对任一调度队列的第一 TS 包进行调度时所生 成的。
条件判断单元, 用于判断信息获取单元获取的任一调度队列的第一
TS 包的存储时间是否小于预设的緩存时间; 若任一调度队列的第一 TS 包的存储时间大于或等于预设的緩存时间, 则判断调度队列的第一 TS 包满足调度条件; 若任一调度队列的第一 TS 包的存储时间是小于预设 的緩存时间, 则判断调度队列的第一 TS包不满足调度条件。
可选的, 信息配置模块 41 4 , 还用于向数据调度模块 41 3配置第二 信息映射表和第三信息映射表。
数据调度模块 41 3 ,还包括: 标识生成单元和队列输出单元,其中: 信息获取单元, 还用于通过任一调度队列的单节目传输流标识从第 二信息映射表中获取任一调度队列对应的输出信息, 其中, 第二信息映 射表为单节目传输流标识与输出信息的映射关系表, 输出信息包括所述 调度队列需要输出的次数。
标识生成单元, 用于根据信息获取单元获取的任一调度队列对应的 输出信息生成至少一个任一调度队列的输出标识。
信息获取单元, 还用于从第三信息映射表中获取至少一个任一调度 队列的输出标识中的每个输出标识对应的输出通道信息, 第三信息映射 表为输出标识与输出通道信息的信息映射表, 输出通道信息包括输出通 道号;
队列输出单元, 还用于根据信息获取单元获取的每个输出标识对应 的输出通道信息将任一调度队列输出。
可选的, 标识生成单元具体用于: 若任一调度队列需要输出的次数 为至少两次时, 则根据信息获取单元获取的任一调度队列的单节目传输 流标识生成至少两个任一调度队列的输出标识; 或者, 若任一调度队列 需要输出的次数为一次时, 则根据信息获取单元获取的任一调度队列的 单节目传输流标识生成一个任一调度队列的输出标识。
可选的, 信息配置模块 41 4 , 还用于向标识获取模块 41 1 配置第四 信息映射表。
标识获取模块 41 1具体用于: 解析至少一个输入数据包, 得到每个 输入数据包的包头信息及 TS 包; 根据每个输入数据包的包头信息从第 四信息映射表中获取每个输入数据包的 TS包对应的多节目传输流标识, 其中, 第四信息映射表为包头信息与多节目传输流标识的映射关系表。 可选的, 队列管理模块 41 2具体用于: 为第一信息映射表中的每个 单节目传输流标识创建一个存储空间; 将至少一个 TS包中每个 TS包分 别存入每个 TS 包对应的单节目传输流标识的存储空间; 根据第一信息 映射表中的每个单节目传输流标识的存储空间中所存储的 TS 包, 生成 对应的调度队列。
本发明实施例提供的视频数据处理装置, 通过统一管理根据第一信 息映射表中的单节目传输流标识为所输入的所有 TS包创建的调度队列, 以及对所有待调度的 TS包的统一调度, 并在每个 TS包输出时选择至少 一个输出通道将其输出, 从而实现视频数据的多输出通道的输出
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分 步骤可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计 算机可读取存储介质中, 该程序在执行时, 执行包括上述方法实施例的 步骤; 而前述的存储介质包括: ROM、 RAM , 磁碟或者光盘等各种可 以存储程序代码的介质。
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局 限于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可 轻易想到变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明 的保护范围应以所述权利要求的保护范围为准。

Claims

权 利 要 求
1、 一种视频数据处理方法, 其特征在于, 包括:
获取至少一个传输流 TS包中的每个 TS包的多节目传输流标识; 通过所述每个 TS 包的多节目传输流标识依次从第一信息映射表中 获取所述每个 TS 包的单节目传输流标识, 其中, 所述第一信息映射表 为多节目传输流标识与单节目传输流标识的映射关系表;
根据所述第一信息映射表中的单节目传输流标识为所述至少一个 TS包创建至少一个调度队列, 其中, 所述第一信息映射表中的每个单节 目传输流标识分别对应一个调度队列;
选择任一调度队列, 判断所述任一调度队列的第一 TS 包是否满足 调度条件;
若所述任一调度队列的第一 TS 包满足所述调度条件, 则根据所述 任一调度队列的单节目传输流标识选择至少一个输出通道将所述任一 调度队列输出, 并继续判断其他调度队列的第一 TS 包, 直到所有调度 队列全部判断完。
2、 根据权利要求 1 所述的方法, 其特征在于, 所述判断所述任一 调度队列的第一 TS包是否满足调度条件之后, 还包括:
若所述任一调度队列的第一 TS 包不满足所述调度条件, 则跳过所 述任一调度队列, 继续判断其他调度队列的第一 TS 包, 直到所有调度 队列全部判断完。
3、 根据权利要求 2 所述的方法, 其特征在于, 所述判断所述任一 调度队列的第一 TS包是否满足调度条件包括:
根据所述任一调度队列的第一 TS 包的入队时间及调度时间, 获取 所述任一调度队列的第一 TS 包存储在存储空间中的存储时间, 其中, 所述入队时间为所述任一调度队列的第一 TS 包在被分配到存储空间中 时生成的, 所述调度时间为对所述任一调度队列的第一 TS 包进行调度 时所生成的;
判断所述任一调度队列的第一 TS 包的存储时间是否小于预设的緩 存时间;
若所述任一调度队列的第一 TS 包的存储时间大于或等于预设的緩 存时间, 则判断所述调度队列的满足调度条件; 若所述任一调度队列的第一 TS 包的存储时间是小于预设的緩存时 间, 则判断所述调度队列的不满足调度条件。
4、 根据权利要求 3 所述的方法, 其特征在于, 所述根据所述任一 调度队列的单节目传输流标识选择至少一个输出通道将所述任一调度 队列输出包括:
通过所述任一调度队列的单节目传输流标识从第二信息映射表中 获取所述任一调度队列对应的输出信息, 其中, 所述第二信息映射表为 单节目传输流标识与输出信息的映射关系表, 所述输出信息包括所述调 度队列需要输出的次数;
根据所述任一调度队列对应的输出信息生成至少一个所述任一调 度队列的输出标识;
从第三信息映射表中获取所述至少一个所述任一调度队列的输出 标识中的每个输出标识对应的输出通道信息, 所述第三信息映射表为输 出标识与输出通道信息的信息映射表, 所述输出通道信息包括输出通道 号;
根据所述每个输出标识对应的输出通道信息将所述任一调度队列 输出。
5、 根据权利要求 4 所述的方法, 其特征在于, 所述根据所述任一 调度队列对应的输出信息生成至少一个所述任一调度队列的输出标识, 包括:
若所述任一调度队列需要输出的次数为至少两次时, 则根据所述任 一调度队列的单节目传输流标识生成至少两个任一调度队列的输出标 识;
或者,
若所述任一调度队列需要输出的次数为一次时, 则根据所述任一调 度队列的单节目传输流标识生成一个任一调度队列的输出标识。
6、 根据权利要求 1 所述的方法, 其特征在于, 所述获取至少一个 TS包中的每个 TS包的多节目传输流标识包括:
解析至少一个输入数据包, 得到每个输入数据包的包头信息及 TS 包;
根据所述每个输入数据包的包头信息从第四信息映射表中获取所 述每个输入数据包的 TS 包对应的多节目传输流标识, 其中, 所述第四 信息映射表为包头信息与多节目传输流标识的映射关系表。
7、 根据权利要求 1 所述的方法, 其特征在于, 所述根据所述第一 信息映射表中的单节目传输流标识为所述至少一个 TS 包创建至少一个 调度队列包括:
为所述第一信息映射表中的每个单节目传输流标识创建一个存储 空间;
将所述至少一个 TS 包中每个 TS 包分别存入所述每个 TS 包对应的 单节目传输流标识的存储空间;
根据所述第一映射表中的每个单节目传输流标识的存储空间中所 存储的 TS包, 生成对应的调度队列。
8、 一种视频数据处理装置, 其特征在于, 包括:
信息配置模块, 用于向标识获取模块和队列管理模块配置第一信息 映射表;
所述标识获取模块, 用于获取至少一个传输流 TS包中的每个 TS包 的多节目传输流标识;
所述标识获取模块, 还用于通过所述每个 TS 包的多节目传输流标 识依次从所述信息配置模块配置的所述第一信息映射表中获取所述每 个 TS 包的单节目传输流标识, 其中, 所述第一信息映射表为多节目传 输流标识与单节目传输流标识的映射关系表;
队列管理模块, 用于根据所述信息配置模块配置的所述第一信息映 射表中的单节目传输流标识为所述至少一个 TS 包创建至少一个调度队 歹 |J , 其中, 所述第一信息映射表中的每个单节目传输流标识分别对应一 个调度队列;
数据调度模块, 用于选择所述队列管理模块生成的任一调度队列, 并判断所述任一调度队列的第一 TS包是否满足调度条件;
所述数据调度模块, 还用于若所述任一调度队列的第一 TS 包满足 所述调度条件, 则根据所述任一调度队列的单节目传输流标识选择至少 一个输出通道将所述任一调度队列输出, 并继续判断其他调度队列的第 一 TS包, 直到所有调度队列全部判断完。
9、 根据权利要求 8所述的装置, 其特征在于, 所述装置还包括: 所述数据调度模块, 还用于若所述任一调度队列的第一 TS 包不满 足所述调度条件, 则跳过所述任一调度队列, 继续判断其他调度队列的 第一 TS包, 直到所有调度队列全部判断完。
1 0、 根据权利要求 9所述的装置, 其特征在于, 所述数据调度模块 包括:
信息获取单元, 用于根据所述任一调度队列的第一 TS 包的入队时 间及调度时间, 获取所述任一调度队列的第一 TS 包存储在存储空间中 的存储时间, 其中, 所述入队时间为所述任一调度队列的第一 TS 包在 被分配到存储空间中时生成的, 所述调度时间为对所述任一调度队列的 第一 TS包进行调度时所生成的;
条件判断单元, 用于判断所述信息获取单元获取的所述任一调度队 列的第一 TS 包的存储时间是否小于预设的緩存时间; 若所述任一调度 队列的第一 TS 包的存储时间大于或等于预设的緩存时间, 则判断所述 调度队列的第一 TS包满足调度条件; 若所述任一调度队列的第一 TS包 的存储时间是小于预设的緩存时间, 则判断所述调度队列的第一 TS 包 不满足调度条件。
1 1、 根据权利要求 1 0所述的装置, 其特征在于:
所述信息配置模块, 还用于向所述数据调度模块配置第二信息映射 表和第三信息映射表;
所述数据调度模块, 还包括:
所述信息获取单元, 还用于通过所述任一调度队列的单节目传输流 标识从第二信息映射表中获取所述任一调度队列对应的输出信息, 其中, 所述第二信息映射表为单节目传输流标识与输出信息的映射关系表, 所 述输出信息包括所述调度队列需要输出的次数;
标识生成单元, 用于根据所述信息获取单元获取的所述任一调度队 列对应的输出信息生成至少一个所述任一调度队列的输出标识;
所述信息获取单元, 还用于从第三信息映射表中获取所述至少一个 所述任一调度队列的输出标识中的每个输出标识对应的输出通道信息, 所述第三信息映射表为输出标识与输出通道信息的信息映射表, 所述输 出通道信息包括输出通道号;
队列输出单元, 还用于根据所述信息获取单元获取的所述每个输出 标识对应的输出通道信息将所述任一调度队列输出。
1 2、 根据权利要求 1 1 所述的装置, 其特征在于, 所述标识生成单 元具体用于: 若所述任一调度队列需要输出的次数为至少两次时, 则根 据所述信息获取单元获取的所述任一调度队列的单节目传输流标识生 成至少两个任一调度队列的输出标识; 或者, 若所述任一调度队列需要 输出的次数为一次时, 则根据所述信息获取单元获取的所述任一调度队 列的单节目传输流标识生成一个任一调度队列的输出标识。
1 3、 根据权利要求 8所述的装置, 其特征在于:
所述信息配置模块, 还用于向所述标识获取模块配置第四信息映射 表;
所述标识获取模块具体用于: 解析至少一个输入数据包, 得到每个 输入数据包的包头信息及 TS 包; 根据所述每个输入数据包的包头信息 从所述第四信息映射表中获取所述每个输入数据包的 TS 包对应的多节 目传输流标识, 其中, 所述第四信息映射表为包头信息与多节目传输流 标识的映射关系表。
14、 根据权利要求 8所述的装置, 其特征在于, 所述队列管理模块具 体用于: 为所述第一信息映射表中的每个单节目传输流标识创建一个存储 空间; 将所述至少一个 TS 包中每个 TS 包分别存入所述每个 TS 包对应的 单节目传输流标识的存储空间; 根据所述第一信息映射表中的每个单节目 传输流标识的存储空间中所存储的 TS包, 生成对应的调度队列。
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