WO2018112784A1 - 基于机顶盒的视频播放方法及机顶盒 - Google Patents

基于机顶盒的视频播放方法及机顶盒 Download PDF

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Publication number
WO2018112784A1
WO2018112784A1 PCT/CN2016/111272 CN2016111272W WO2018112784A1 WO 2018112784 A1 WO2018112784 A1 WO 2018112784A1 CN 2016111272 W CN2016111272 W CN 2016111272W WO 2018112784 A1 WO2018112784 A1 WO 2018112784A1
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Prior art keywords
video
delay
top box
video file
file
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PCT/CN2016/111272
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English (en)
French (fr)
Inventor
彭明建
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深圳市泰普森科技有限公司
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Priority to PCT/CN2016/111272 priority Critical patent/WO2018112784A1/zh
Publication of WO2018112784A1 publication Critical patent/WO2018112784A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk

Definitions

  • the present invention relates to the field of communications, and in particular, to a video playing method based on a set top box and a set top box.
  • STB Digital Video Converter Box
  • STB Set Top Box
  • the existing set-top box plays video files based on the cable television network, and the video source cannot be switched when the video file is played.
  • the video source cannot be switched.
  • One of the objectives of the present invention is to provide a video playback method based on a set top box, which mainly solves the shortcomings of the existing switching of the video source.
  • a method for playing a video based on a set top box comprising:
  • the set top box detects the playing condition of the cable television video source. If the playing condition is abnormal, the cable video source is replaced with the network video file for video playing.
  • the method specifically includes:
  • the set top box detects the source of the current video file and the name of the video file
  • the first play file of the video file is obtained through the network
  • the set top box detects the delay of the video file of the cable television source. When the delay is abnormal, the first play file is called to play the video file.
  • the acquiring the first play file of the video file by using the network specifically includes:
  • the first play file having the same name as the video file is searched from the video application of the network by the name of the video file.
  • the delay of the set top box detecting the video file of the cable television source specifically includes:
  • the set-top box counts the delay sum of a fixed number of frames. If the sum of the delays exceeds the set time threshold and the number of single-frame delays exceeds the single-frame delay threshold is higher than the set number, the delay exception is determined.
  • the delay of the set top box detecting the video file of the cable television source specifically includes:
  • the set-top box counts the total delay of the fixed number of frames. If the sum of the delays exceeds the set time threshold and the number of single-frame delays exceeds the single-frame delay threshold is less than the set number, the delay is determined to be non-abnormal.
  • a set top box comprising:
  • a detecting unit configured to detect a playing condition of a cable television video source
  • the processing unit is configured to replace the cable video source with a network video file for video playback if the playback situation is abnormal.
  • the detecting unit is specifically configured to detect a source of the current video file and a name of the video file;
  • the processing unit is configured to acquire a first play file of the video file by using a network when the source of the video file is a cable television source;
  • the detecting unit is further configured to detect a delay of a video file of a cable television source
  • the processing unit is further configured to: when the delay is abnormal, invoke the first play file to play the video file.
  • the processing unit is specifically configured to search, by using a name of the video file, a first play file having the same name as the video file from the video application of the network.
  • the detecting unit is specifically configured to count the total delay of the fixed number of frames, if the total delay exceeds the set time threshold and the single frame delay exceeds the single frame delay threshold by more than the set number. When the number is counted, the delay exception is determined.
  • the detecting unit is specifically configured to count the sum of the delays of the fixed number of frames, such that the sum of the delays exceeds the set time threshold and the number of single frame delays exceeds the single frame delay threshold is lower than the set number. When the number is determined, it is determined that the delay is not abnormal.
  • FIG. 1 is a flow chart of a method for playing a video based on a set top box according to a preferred embodiment of the present invention.
  • FIG. 2 is a structural diagram of a set top box according to another preferred embodiment of the present invention.
  • FIG. 3 is a structural diagram of a set top box according to the present invention.
  • 'computer device' also referred to as 'computer', in the context, refers to an intelligent electronic device that can perform predetermined processing procedures such as numerical calculations and/or logical calculations by running predetermined programs or instructions, which may include a processor and The memory is executed by the processor to execute a predetermined process pre-stored in the memory to execute a predetermined process, or is executed by hardware such as an ASIC, an FPGA, a DSP, or the like, or a combination of the two.
  • Computer devices include, but are not limited to, servers, personal computers, notebook computers, tablets, smart phones, and the like.
  • a set top box based video playing method includes, but is not limited to, a set top box separately or a box integrated inside the smart TV, and of course, in actual applications, it may also be a subsequent set top type device.
  • the method for playing video based on the set top box may be used in a set top box.
  • the set top box is merely an example, and other existing or future set top boxes may also be included if applicable to the present invention. It is intended to be within the scope of the invention and is hereby incorporated by reference.
  • the method provided by the present invention detects the playing condition of the cable television video source in the set top box. If the playing condition is abnormal, the cable video source is replaced with the network video file for video playing.
  • FIG. 1 is a schematic diagram of a set-top box-based video playing method according to a preferred embodiment of the present invention.
  • the method is completed by a set-top box having at least two interfaces, and the first interface is a cable television interface.
  • the second interface is a network interface.
  • the method is as shown in FIG. 1 and includes the following steps:
  • Step S101 The set top box detects a play source of the current video file and a name of the video file.
  • the source in the step S101 may be a network source or a cable source.
  • the specific source address of the network source is not distinguished by the present invention.
  • Step S102 When the source of the video file is a cable television source, acquire the first play file of the video file through the network.
  • the method for obtaining the first play file of the video file by using the network network in the foregoing step S102 may be specifically:
  • the first play file having the same name as the video file is searched from the video application of the network by the name of the video file.
  • the video application is for example, Youku, PPTV, iQiyi, and the like.
  • Step S103 The set top box detects a delay of the video file of the cable television source, and when the delay is abnormal, calling the first play file to play the video file.
  • the specific manner of detecting the delay of the video file of the cable television source in the above step S103 may be:
  • the set-top box counts the total delay of the fixed number of frames. If the sum of the delays exceeds the set time threshold and the number of single-frame delays exceeds the single-frame delay threshold is higher than the set number, the first play file is extracted to replace the video. file.
  • this setting is such that for the video delay, its main performance is the screen or delay.
  • the delay is a fixed number of frames.
  • the total delay must be greater than the set time threshold (this is an empirical value), and the number of single frame delays must exceed the set number, because if the delay of a frame is very large, then this Frames are discarded, and discarding a frame does not affect the quality of the entire video. Therefore, this setting can improve the quality of video playback but does not cause incorrect replacement due to too much delay of a certain frame.
  • the calling the first play file to play the video file may be: downloading the video file through the network video application to obtain a frame of the currently played video file, and inserting the frame into the video file in the cable television broadcast source to play.
  • the basic function of a digital set-top box is to receive digital TV.
  • EPG Electronic Program Guide
  • Software online upgrade can be seen as one of the applications of data broadcasting. Data broadcasting service The upgrade software is broadcasted according to the DVB data broadcast standard. The set top box can identify the version number of the software, receive the software when the version is different, and update the software stored in the memory.
  • Digital set-top boxes provide easy Internet access through a built-in cable modem. Users can go online and send emails through the built-in browser of the set-top box. At the same time, the set-top box can also provide various interfaces to connect with the PC, and connect to the Internet with a PC.
  • Conditional reception The core of conditional access is set-top box scrambling and encryption, and the digital set-top box should have descrambling And decryption features.
  • the functions of the new generation of set-top boxes should include: 1 receiving analog TV and digital TV programs in broadcast mode, 2 high-speed access to the Internet, sending and receiving e-mail, 3 video on demand (VOD) and music on demand functions, 4 telephones, video telephony, conference television 5, connect VCR, VCD and other consumer electronics products, 6 e-shopping, 7 video games.
  • IAS Interactive Multimedia Internet Access Service
  • Signal input Digital signal input for connecting cable TV signals.
  • Signal loop output Digital signal output that can be used to connect to other set-top boxes.
  • RCA Composite Video Signal (CVBS) Interface -
  • YPbPr Color difference component interface for connecting to a TV or monitor.
  • S-VIDEO A sharpness video interface that transmits the luminance signal Y and the chrominance signal C separately. Make sure that the luminance signal is not disturbed by the chrominance signal.
  • SPDIF Optical digital audio interface for connecting audio or TV.
  • USB Universal serial bus, which can be connected to a USB flash drive.
  • Ethernet interface can be used for Internet access, program upgrades, interactions, etc.
  • VGA The PC field is widely used, and is divided into VGA and SVGA types, which can support resolution display up to 1920X108060Hz.
  • RS232 Data interface, generally used for program upgrade.
  • SCART Europe uses a unified standard audio and video interface, which can automatically identify the input and output relationship between devices, single (multi-strand) connection, simplifying the connection between devices.
  • the SCART interface transmits set-top box CVBS signals, interlaced RGB signals, and audio signals.
  • HDMI High-resolution video output for connecting to a TV or display.
  • FIG. 2 provides a set top box, where the set top box includes:
  • the detecting unit 201 is configured to detect a playing condition of the cable television video source
  • the processing unit 202 is configured to replace the cable video source with a network video file for video playback if the playback situation is abnormal.
  • the detecting unit is specifically configured to detect a source of the current video file and a name of the video file;
  • the processing unit is configured to acquire a first play file of the video file by using a network when the source of the video file is a cable television source;
  • the detecting unit is further configured to detect a delay of a video file of a cable television source
  • the processing unit is further configured to: when the delay is abnormal, invoke the first play file to play the video file.
  • the processing unit is specifically configured to search, by using a name of the video file, a first play file having the same name as the video file from the video application of the network.
  • the detecting unit is specifically configured to count the total delay of the fixed number of frames, if the total delay exceeds the set time threshold and the single frame delay exceeds the single frame delay threshold by more than the set number. When the number is counted, the delay exception is determined.
  • the detecting unit is specifically configured to count the sum of the delays of the fixed number of frames, such that the sum of the delays exceeds the set time threshold and the number of single frame delays exceeds the single frame delay threshold is lower than the set number. When the number is determined, it is determined that the delay is not abnormal.
  • each block of the flowchart or block diagram can represent a module, a program segment, or a portion of code that includes one or more of the Executable instructions.
  • the functions noted in the blocks may also occur in a different order than that illustrated in the drawings. For example, two consecutive blocks may be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending upon the functionality involved.
  • each block of the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts can be implemented in a dedicated hardware-based system that performs the specified function or function. Or it can be implemented by a combination of dedicated hardware and computer instructions.
  • an embodiment of the present invention further provides a set top box 300.
  • the set top box 300 includes, but is not limited to, a personal computer, a notebook computer, or a group of computers.
  • the server includes the device 30 including a processor 301, a memory 302, a transceiver 303, and a bus 304.
  • the transceiver 303 is configured to transmit and receive data with and from an external device.
  • the number of processors 301 in device 300 may be one or more.
  • processor 301, memory 302, and transceiver 303 may be connected by a bus system or other means.
  • Apparatus 300 can be used to perform the method illustrated in FIG. For the meaning and examples of the terms involved in the embodiment, reference may be made to the corresponding description of FIG. 1. I will not repeat them here.
  • the program code is stored in the memory 302.
  • the processor 301 is configured to call program code stored in the memory 302 for performing the steps as shown in FIG.
  • the processor 301 herein may be a processing component or a general term of multiple processing components.
  • the processing element can be a central processing unit (Central Processing Unit, CPU), can also be a specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits configured to implement embodiments of the present application, such as one or more microprocessors (digital signal) Processor, DSP), or one or more Field Programmable Gate Arrays (FPGAs).
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • DSP digital signal Processor
  • FPGAs Field Programmable Gate Arrays
  • the memory 303 may be a storage device or a collective name of a plurality of storage elements, and is used to store executable program code or parameters, data, and the like required for the application running device to operate. And the memory 303 may include random access memory (RAM), and may also include non-volatile memory (non-volatile memory) Memory), such as disk storage, flash (Flash), etc.
  • RAM random access memory
  • non-volatile memory non-volatile memory
  • flash flash
  • Bus 304 can be an industry standard architecture (Industry Standard Architecture, ISA) bus, Peripheral Component (PCI) bus or extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, etc.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 4, but it does not mean that there is only one bus or one type of bus.
  • the user equipment may also include input and output means coupled to bus 304 for connection to other portions, such as processor 301, via a bus.
  • the input/output device can provide an input interface for the operator, so that the operator can select the control item through the input interface, and can also be other interfaces through which other devices can be externally connected.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some communication interface, device or unit, and may be electrical, mechanical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read only memory (ROM, Read-Only) Memory, random access memory (RAM), disk or optical disk, and other media that can store program code.

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  • Computer Networks & Wireless Communication (AREA)
  • Databases & Information Systems (AREA)
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  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

本发明属于通信领域，提供一种基于机顶盒的视频播放方法及机顶盒，所述方法包括：机顶盒检测有线电视视频源的播放情况，如该播放情况异常时，用网络视频文件替换该有线电视视频源进行视频播放。本发明具有视频播放流畅的优点。

Description

基于机顶盒的视频播放方法及机顶盒 技术领域
本发明涉及通信领域，尤其涉及一种基于机顶盒的视频播放方法及机顶盒。
背景技术
数字视频变换盒（英语：Set Top Box，简称STB），通常称作机顶盒或机上盒，是一个连接电视机与外部信号源的设备。它可以将压缩的数字信号转成电视内容，并在电视机上显示出来。信号可以来自有线电缆、卫星天线、宽带网络以及地面广播。
现有的机顶盒基于有线电视网络播放视频文件,在播放视频文件时无法进行视频源的切换,导致有限电视网络的视频不流畅时,无法进行视频源的切换.
 技术问题
本发明的目的之一是提供一种基于机顶盒的视频播放方法，其主要解决现有的无法进行视频源的切换缺点。
技术解决方案
第一方面，提供一种基于机顶盒的视频播放方法，所述方法包括：
机顶盒检测有线电视视频源的播放情况，如该播放情况异常时，用网络视频文件替换该有线电视视频源进行视频播放。
可选的，所述方法具体包括：
机顶盒检测当前视频文件的播放源以及视频文件的名称；
在视频文件的播放源为有线电视源时，通过网络获取该视频文件的第一播放文件；
机顶盒检测有线电视源的视频文件的延时，当延时异常时，调用第一播放文件播放该视频文件。
可选的，所述通过网络获取该视频文件的第一播放文件具体包括：
通过视频文件的名称从网络的视频应用中搜索与该视频文件名称相同的第一播放文件。
可选的，机顶盒检测有线电视源的视频文件的延时具体包括：
机顶盒统计固定数量帧的延时总和，如该延时总和超过设定时间阈值且单帧延时超过单帧延时阈值的个数高于设定个数时，确定延时异常。
可选的，机顶盒检测有线电视源的视频文件的延时具体包括：
机顶盒统计固定数量帧的延时总和，如该延时总和超过设定时间阈值且单帧延时超过单帧延时阈值的个数低于设定个数时，确定延时非异常。
第二方面，提供一种机顶盒，所述机顶盒包括：
检测单元，用于检测有线电视视频源的播放情况；
处理单元，用于如该播放情况异常时，用网络视频文件替换该有线电视视频源进行视频播放。
可选的，所述检测单元，具体用于检测当前视频文件的播放源以及视频文件的名称；
所述处理单元，用于在视频文件的播放源为有线电视源时，通过网络获取该视频文件的第一播放文件；
所述检测单元，还用于检测有线电视源的视频文件的延时；
所述处理单元，还用于当延时异常时，调用第一播放文件播放该视频文件。
可选的，所述处理单元具体用于通过视频文件的名称从网络的视频应用中搜索与该视频文件名称相同的第一播放文件。
可选的，所述检测单元，具体用于统计固定数量帧的延时总和，如该延时总和超过设定时间阈值且单帧延时超过单帧延时阈值的个数高于设定个数时，确定延时异常。
可选的，所述检测单元，具体用于统计固定数量帧的延时总和，如该延时总和超过设定时间阈值且单帧延时超过单帧延时阈值的个数低于设定个数时，确定延时非异常。
 有益效果
本领域普通技术人员将了解，虽然下面的详细说明将参考图示实施例、附图进行，但本发明并不仅限于这些实施例。而是，本发明的范围是广泛的，且意在仅通过后附的权利要求限定本发明的范围。
附图说明
通过阅读参照以下附图所作的对非限制性实施例所作的详细描述，本发明的其它特征、目的和优点将会变得更明显：
图1为根据本发明一个优选实施例提供的基于机顶盒的视频播放方法的流程图。
图2为根据本发明另一个优选实施例提供的机顶盒的结构图。
图3为本发明提供的一种机顶盒的结构图。
 本发明的实施方式
在更加详细地讨论示例性实施例之前应当提到的是，一些示例性实施例被描述成作为流程图描绘的处理或方法。虽然流程图将各项操作描述成顺序的处理，但是其中的许多操作可以被并行地、并发地或者同时实施。此外，各项操作的顺序可以被重新安排。当其操作完成时所述处理可以被终止，但是还可以具有未包括在附图中的附加步骤。所述处理可以对应于方法、函数、规程、子例程、子程序等等。
在上下文中所称'计算机设备'，也称为'电脑'，是指可以通过运行预定程序或指令来执行数值计算和/或逻辑计算等预定处理过程的智能电子设备，其可以包括处理器与存储器，由处理器执行在存储器中预存的存续指令来执行预定处理过程，或是由ASIC、FPGA、DSP等硬件执行预定处理过程，或是由上述二者组合来实现。计算机设备包括但不限于服务器、个人电脑、笔记本电脑、平板电脑、智能手机等。
后面所讨论的方法（其中一些通过流程图示出）可以通过硬件、软件、固件、中间件、微代码、硬件描述语言或者其任意组合来实施。当用软件、固件、中间件或微代码来实施时，用以实施必要任务的程序代码或代码段可以被存储在机器或计算机可读介质（比如存储介质）中。（一个或多个）处理器可以实施必要的任务。
这里所公开的具体结构和功能细节仅仅是代表性的，并且是用于描述本发明的示例性实施例的目的。但是本发明可以通过许多替换形式来具体实现，并且不应当被解释成仅仅受限于这里所阐述的实施例。
应当理解的是，虽然在这里可能使用了术语'第一'、'第二'等等来描述各个单元，但是这些单元不应当受这些术语限制。使用这些术语仅仅是为了将一个单元与另一个单元进行区分。举例来说，在不背离示例性实施例的范围的情况下，第一单元可以被称为第二单元，并且类似地第二单元可以被称为第一单元。这里所使用的术语'和/或'包括其中一个或更多所列出的相关联项目的任意和所有组合。
这里所使用的术语仅仅是为了描述具体实施例而不意图限制示例性实施例。除非上下文明确地另有所指，否则这里所使用的单数形式'一个'、'一项'还意图包括复数。还应当理解的是，这里所使用的术语'包括'和/或'包含'规定所陈述的特征、整数、步骤、操作、单元和/或组件的存在，而不排除存在或添加一个或更多其他特征、整数、步骤、操作、单元、组件和/或其组合。
还应当提到的是，在一些替换实现方式中，所提到的功能/动作可以按照不同于附图中标示的顺序发生。举例来说，取决于所涉及的功能/动作，相继示出的两幅图实际上可以基本上同时执行或者有时可以按照相反的顺序来执行。
下面结合附图对本发明作进一步详细描述。
根据本发明的一个方面，提供了一种基于机顶盒的视频播放方法。其中，机顶盒包括但不限于：单独设置的机顶盒或集成在智能电视机内部的盒子等，当然在实际应用中，还可以是后续的机顶类设备。
在一个实施例中，上述基于机顶盒的视频播放的方法可以用于机顶盒中，需要说明的是，上述机顶盒仅为举例，其他现有的或今后可能出现的机顶盒如果适用于本发明，也应包含在本发明保护范围以内，并以引用方式包含于此。
本发明提供的方法在机顶盒检测有线电视视频源的播放情况，如该播放情况异常时，用网络视频文件替换该有线电视视频源进行视频播放。
请参考图1，图1为根据本发明一个优选实施例的提供的基于机顶盒的视频播放方法，该方法由机顶盒来完成，该机顶盒具有直至少二个接口,第一接口为有线电视接口,第二接口为网络接口,该方法如图1所示，包括如下步骤：
步骤S101、机顶盒检测当前视频文件的播放源以及视频文件的名称。
在步骤S101中的播放源可以为网络播放源或有线播放源，对于网络播放源的具体源地址本发明并不区分。
步骤S102、在视频文件的播放源为有线电视源时，通过网络获取该视频文件的第一播放文件。
上述步骤S102的通过网络网络获取该视频文件的第一播放文件的方法具体可以为：
通过视频文件的名称从网络的视频应用中搜索与该视频文件名称相同的第一播放文件。该视频应用例如，优酷、PPTV、爱奇艺等等应用。
步骤S103、机顶盒检测有线电视源的视频文件的延时，当延时异常时，调用第一播放文件播放该视频文件。
上述步骤S103检测有线电视源的视频文件的延时的具体方式可以为：
机顶盒统计固定数量帧的延时总和，如该延时总和超过设定时间阈值且单帧延时超过单帧延时阈值的个数高于设定个数时，提取第一播放文件替换该视频文件。
此设置的基础是这样的，对于视频延时来说，其主要的表现即为花屏或拖延，本申请人在研究其原因时，发现延时的情况很多，但是其延时时，固定数量帧的总延时一定是大于否个设定时间阈值的（这个是个经验值），并且同时满足单帧延时的个数要超过设定个数，因为如果某帧的延时非常大，那么此帧会被丢弃，某个帧丢弃并不会影响整个视频的质量。所以此设置能够提高视频播放的质量但不会因为某帧延时过多导致误替换的情况。
上述调用第一播放文件播放该视频文件具体可以为：通过网络视频应用下载该视频文件获取当前播放视频文件的帧，将该帧插入到有线电视播放源内的视频文件内播放。
数字机顶盒的基本功能是接收数字电视
如：（1）电子节目指南（ EPG ）。给用户提供一个容易使用、界面友好、可以快速访问想看节目的一种方式，电视节目
（2）高速数据广播。能给用户提供股市行情、票务信息、电子报纸、热门网站等各种消息
（3）软件在线升级。软件在线升级可看成是数据广播的应用之一。数据广播服务 器按DVB数据广播标准将升级软件广播下来，机顶盒能识别该软件的版本号，在版本不同时接收该软件，并对保存在存储器中的软件进行更新
（4）因特网接入和电子邮件。数字机顶盒可通过内置的电缆调制解调器方便地实现因特网接入功能。用户可以通过机顶盒内置的浏览器上网，发送电子邮件。同时机顶盒也可以提供各种接口与PC相连，用PC与因特网连接
（5）有条件接收。有条件接收的核心是机顶盒 加扰 和 加密 ，数字机顶盒应具有 解扰 和解密功能。
新一代机顶盒的功用应包括：①接收广播方式的模拟电视和数字电视节目，②高速访问Internet，收发e-mail，③视频点播(VOD)和音乐点播功能，④电话、可视电话、会议电视，⑤连接VCR、VCD等消费电子产品的功能，⑥电子购物，⑦电子游戏等。[1]
业务
围绕数字机顶盒的数字视频、数字信息与交互式应用三大核心功能开发了多种增值业务。具体见下表：
数字视频卫星数字视频广播（DVB-S）
地面数字视频广播（DVB-T）
有线数字视频广播（DVB-C）
MMDS 数字视频广播
数字付费（加扰）电视
数字音频IP电话/传真
音乐（MOD）
实时音频卡拉OK点播（KOD）
数字数据信息点播（IOD）
数据广播（BIS）
股市证券信息广播（SIS）
VBI 图文电视
应用程序下载
远程数据库流向
电子商务
家居银行
交互式多媒体 互联网接入服务（IAS）
远程教育
远程医疗
网上购物
网上收费
电子广告
股市证券服务（SES）
网上（音、视频）广播业务
可视电话与电视会议
社区多功能服务
接口
信号输入：数字信号输入，用于连接有线电视信号。
信号环路输出：数字信号输出，可用于连接其他机顶盒。
RCA ：复合视频信号（CVBS）接口--最简单、最原始的视频接口。俗称RCA接口，黄色的为视频信号，白色的为左声道音频信号，红色的为右声道音频信号。
YPbPr ：色差分量接口，用于连接电视机或显示器。
S-VIDEO ：清晰度视频接口，将亮度信号Y和色度信号C分开传输。确保亮度信号不会受到色度信号的干扰。
SPDIF ：光纤数字音频接口，用于连接音响或电视。
USB ：通用串行总线，可连接U盘等。
网络接口：以太网接口，可用于上网，程序升级，交互等。
VGA ：PC领域使用广泛，分为VGA和SVGA类型，可以支持到1920X108060Hz分辨率显示。
RS232 ：数据接口，一般用于程序升级。
SCART ：欧洲使用统一标准音视频接口，能够自动识别设备之间的输入输出关系，单根（多股）连线，简化设备之间的连接。SCART接口传输机顶盒CVBS信号、隔行RGB信号、音频信号。
HDMI ：高分辨率视频输出，用于连接电视机或显示屏。
接线
切断机顶盒和电视机电源。
用射频线将机顶盒的射频输入端（射频输入）与有线电视信号插座相连；
用AV线将机顶盒电视机的'视频'，'左/右声道'（音频）接口相连。黄色为视频、白色(L)和红色(R)为左右声道，插头颜色分别相对应。
把机顶盒电源插头与220V交流电源相连。
参阅图2，图2为提供一种机顶盒，所述机顶盒包括：
检测单元201，用于检测有线电视视频源的播放情况；
处理单元202，用于如该播放情况异常时，用网络视频文件替换该有线电视视频源进行视频播放。
可选的，所述检测单元，具体用于检测当前视频文件的播放源以及视频文件的名称；
所述处理单元，用于在视频文件的播放源为有线电视源时，通过网络获取该视频文件的第一播放文件；
所述检测单元，还用于检测有线电视源的视频文件的延时；
所述处理单元，还用于当延时异常时，调用第一播放文件播放该视频文件。
可选的，所述处理单元具体用于通过视频文件的名称从网络的视频应用中搜索与该视频文件名称相同的第一播放文件。
可选的，所述检测单元，具体用于统计固定数量帧的延时总和，如该延时总和超过设定时间阈值且单帧延时超过单帧延时阈值的个数高于设定个数时，确定延时异常。
可选的，所述检测单元，具体用于统计固定数量帧的延时总和，如该延时总和超过设定时间阈值且单帧延时超过单帧延时阈值的个数低于设定个数时，确定延时非异常。
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化涵括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。此外，显然'包括'一词不排除其他单元或步骤，单数不排除复数。系统权利要求中陈述的多个单元或装置也可以由一个单元或装置通过软件或者硬件来实现。第一，第二等词语用来表示名称，而并不表示任何特定的顺序。
附图中的流程图和框图显示了根据本发明的多个实施例的系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或框图中的每个方框可以代表一个模块、程序段或代码的一部分，所述模块、程序段或代码的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。也应当注意，在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个连续的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这依所涉及的功能而定。也要注意的是，框图和/或流程图中的每个方框、以及框图和/或流程图中的方框的组合，可以用执行规定的功能或动作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。
参见图3，本发明实施例还提供一种机顶盒300， 该机顶盒300包括但不限于：个人计算机、笔记本电脑或计算机群组，如图3所示，该服务器包括：设备30包括处理器301、存储器302、收发器303、和总线304。收发器303用于与外部设备之间收发数据。设备300中的处理器301的数量可以是一个或多个。本申请的一些实施例中，处理器301、存储器302和收发器303可通过总线系统或其他方式连接。设备300可以用于执行图1所示的方法。关于本实施例涉及的术语的含义以及举例，可以参考图1对应的说明。此处不再赘述。
其中，存储器302中存储程序代码。处理器301用于调用存储器302中存储的程序代码，用于执行如图1所示的步骤 。
需要说明的是，这里的处理器301可以是一个处理元件，也可以是多个处理元件的统称。例如，该处理元件可以是中央处理器（Central Processing Unit，CPU），也可以是特定集成电路（Application Specific Integrated Circuit，ASIC），或者是被配置成实施本申请实施例的一个或多个集成电路，例如：一个或多个微处理器（digital signal processor，DSP），或，一个或者多个现场可编程门阵列（Field Programmable Gate Array， FPGA）。
存储器303可以是一个存储装置，也可以是多个存储元件的统称，且用于存储可执行程序代码或应用程序运行装置运行所需要参数、数据等。且存储器303可以包括随机存储器（RAM），也可以包括非易失性存储器（non-volatile memory），例如磁盘存储器，闪存（Flash）等。
总线304可以是工业标准体系结构（Industry Standard Architecture，ISA）总线、外部设备互连（Peripheral Component，PCI）总线或扩展工业标准体系结构（Extended Industry Standard Architecture，EISA）总线等。该总线可以分为地址总线、数据总线、控制总线等。为便于表示，图4中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
该用户设备还可以包括输入输出装置，连接于总线304，以通过总线与处理器301等其它部分连接。该输入输出装置可以为操作人员提供一输入界面，以便操作人员通过该输入界面选择布控项，还可以是其它接口，可通过该接口外接其它设备。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，又例如，多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些通信接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备（可以是个人计算机，服务器，或者网络设备等）执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器（ROM，Read-Only Memory）、随机存取存储器（RAM，Random Access Memory）、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围，其均应涵盖在本发明的权利要求和说明书的范围当中。

Claims (10)

  1. 一种基于机顶盒的视频播放方法，其特征在于，所述方法包括：
    机顶盒检测有线电视视频源的播放情况，如该播放情况异常时，用网络视频文件替换该有线电视视频源进行视频播放。
  2. 根据权利要求1所述的方法，其特征在于，所述方法具体包括：
    机顶盒检测当前视频文件的播放源以及视频文件的名称；
    在视频文件的播放源为有线电视源时，通过网络获取该视频文件的第一播放文件；
    机顶盒检测有线电视源的视频文件的延时，当延时异常时，调用第一播放文件播放该视频文件。
  3. 根据权要求2所述的方法，其特征在于，所述通过网络获取该视频文件的第一播放文件具体包括：
    通过视频文件的名称从网络的视频应用中搜索与该视频文件名称相同的第一播放文件。
  4. 根据权要求2所述的方法，其特征在于，机顶盒检测有线电视源的视频文件的延时具体包括：
    机顶盒统计固定数量帧的延时总和，如该延时总和超过设定时间阈值且单帧延时超过单帧延时阈值的个数高于设定个数时，确定延时异常。
  5. 根据权要求2所述的方法，其特征在于，机顶盒检测有线电视源的视频文件的延时具体包括：
    机顶盒统计固定数量帧的延时总和，如该延时总和超过设定时间阈值且单帧延时超过单帧延时阈值的个数低于设定个数时，确定延时非异常。
  6. 一种机顶盒，其特征在于，所述机顶盒包括：
    检测单元，用于检测有线电视视频源的播放情况；
    处理单元，用于如该播放情况异常时，用网络视频文件替换该有线电视视频源进行视频播放。
  7. 根据权利要求6所述的装置，其特征在于，
    所述检测单元，具体用于检测当前视频文件的播放源以及视频文件的名称；
    所述处理单元，用于在视频文件的播放源为有线电视源时，通过网络获取该视频文件的第一播放文件；
    所述检测单元，还用于检测有线电视源的视频文件的延时；
    所述处理单元，还用于当延时异常时，调用第一播放文件播放该视频文件。
  8. 根据权要求7所述的机顶盒，其特征在于，所述处理单元具体用于通过视频文件的名称从网络的视频应用中搜索与该视频文件名称相同的第一播放文件。
  9. 根据权要求7所述的机顶盒，其特征在于，所述检测单元，具体用于统计固定数量帧的延时总和，如该延时总和超过设定时间阈值且单帧延时超过单帧延时阈值的个数高于设定个数时，确定延时异常。
  10. 根据权要求7所述的机顶盒，其特征在于，所述检测单元，具体用于统计固定数量帧的延时总和，如该延时总和超过设定时间阈值且单帧延时超过单帧延时阈值的个数低于设定个数时，确定延时非异常。
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