CN104702876B - A multi-channel synchronous playback apparatus and method - Google Patents

A multi-channel synchronous playback apparatus and method Download PDF

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CN104702876B
CN104702876B CN 201410029642 CN201410029642A CN104702876B CN 104702876 B CN104702876 B CN 104702876B CN 201410029642 CN201410029642 CN 201410029642 CN 201410029642 A CN201410029642 A CN 201410029642A CN 104702876 B CN104702876 B CN 104702876B
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time
channel
reference
playback
period
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CN104702876A (en )
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冀建成
卓庭亮
周文省
刘彦
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杭州海康威视数字技术股份有限公司
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Abstract

本发明公开了一种多路同步回放方法和装置:确定回放时间段以及需要进行多路同步回放的M个通道,M为大于1的正整数;针对每个通道,分别从该通道对应的录像文件中查找出与所述回放时间段相符合的录像文件;根据查找出的各录像文件的开始时间和结束时间,分别确定出所述回放时间段内的不同子时段内作为主通道的通道,每个子时段内作为主通道的通道均存在要回放的录像文件;根据确定结果,按照不同子时段动态切换主通道的方式进行多路同步回放。 The present invention discloses a multi-channel synchronous playback method and apparatus: determines the playback time period and the need for multiple synchronous playback of M channels, M being a positive integer greater than 1; for each channel, the corresponding channel video from file to find out the playback video file and consistent period of time; the start time of each video file to find out and end time, respectively, is determined as the master channel of the channel within a different sub-period of the playback time period, as channels are present in the main channel video file to be played back within each sub-period; based on the determination result, in a different embodiment the main channel sub-multiplex period of dynamic switching of synchronous playback. 应用本发明所述方案,能够提高录像文件的查找效率等。 The embodiment of the present invention is applied, it is possible to improve the search efficiency of video files and the like.

Description

一种多路同步回放方法和装置 A multi-channel synchronous playback apparatus and method

技术领域 FIELD

[0001] 本发明涉及视频监控领域,特别涉及一种多路同步回放方法和装置。 [0001] The present invention relates to a video monitor, and in particular relates to a multi-channel synchronous playback apparatus and method.

背景技术 Background technique

[0002] 现有的数字硬盘录像机(DVR,Digital Video Recorder)等均具备多路同步回放功能。 [0002] Existing Digital Video Recorder (DVR, Digital Video Recorder) etc with multi-channel synchronous playback. 多路即指DVR的多个视频通道,一路代表一个通道;同步回放即指可同时回放多个通道在同一时间段内的录像文件,各通道的回放时间与主通道保持同步;相应地,主通道即指多路同步回放过程中作为参考标准的一个通道。 Refers to a plurality of multiplexed video channels DVR, a representative of the way channel; refers to synchronous playback of a plurality of channels can be simultaneously played back in the video file in the same time period, the playback time of each channel is synchronized with the main channel; accordingly, the main channel as the reference standard during a playback synchronization channel multiplexing refers.

[0003] 多路同步回放技术主要用于大量的录像文件查找。 [0003] multi-channel synchronous playback technology is mainly used for a large number of video files to find. 比如:在1:00〜3:00这一时间段内有异常情况发生,那么则需要回放1:〇〇〜3:00这个时间段内的所有监控点的录像文件,以查找具体的异常地点和原因等。 For example: 1: 00~3: 00 this time period there is an abnormal situation occurs, then you need to play back 1: 〇〇~3: video files of all monitoring points 00 this period of time, to find the specific location of the abnormal and other reasons.

[0004] 在实际应用中,为了节省硬盘的存储空间等,对于每个通道来说,其通常都不会24 小时一直进行录像,而是间歇性地进行录像,如当每次满足预先设定的录像条件时,则进行录像,并生成一个录像文件。 [0004] In practice, in order to save disk storage space, for each channel, it will not generally been 24 hours recording, but recording intermittently, such as every time a predetermined satisfied when the recording conditions, the recording, and generates a video file.

[0005] 另外,按照现有多路同步回放技术的实现方式,在开始进行多路同步回放之前,即需要先确定出主通道,可以由用户指定,也可以由DVR按照某一规则选定,而且,一旦确定将某一通道作为主通道,那么在整个多路同步回放过程中,该通道就将一直作为主通道,而不会变更为其它通道。 [0005] Further, according to the conventional manner to achieve multi-channel synchronous playback technology, before starting the multi-channel synchronous playback, the need to determine the primary channel may be specified by the user, may be selected by the DVR according to a rule, Further, upon determining a channel as the main channel, then the entire multi-channel synchronous playback, the channel will have as a main channel, other channels will not change.

[0006] 这样一来,如果在指定的回放时间段内,主通道一直存在要回放的录像文件,那么其它通道的录像文件也都可以进行回放,但如果主通道在某一子时段内不存在要回放的录像文件,即主通道在该子时段内未进行录像,那么由于其它通道的回放时间需要与主通道保持同步,因此其它通道即使存在要回放的录像文件,也将无法进行回放,从而降低了录像文件的查找效率。 [0006] Thus, if the specified playback time period, there has been the main channel video file to be played back, the video files are also other channels can be played back, if the main channel is not present in a certain sub-period to play back the video file, i.e., the main channel is not performed recording in the sub-periods, then since the playback time of the other channels need to be kept synchronized with the main path, and therefore the other channels even if there is to be played back video file will not be played back, so that Find reduces the efficiency of video files.

[0007] 比如:用户指定的回放时间段为1:00〜3:00,并指定了16个通道同时进行回放,且指定通道2作为主通道,但是通道2在2:00〜3:00这一子时段内不存在要回放的录像文件, 那么整个回放过程只能在2:00时就结束,相应地,其它通道在2:00〜3 :00这一子时段内的录像文件均将无法进行回放。 [0007] For example: a user-specified playback time period is 1: 00~3: 00, and specifies 16 channels simultaneously playback and channel 2 designated as the master channel, but the channel 2 in 2: 00~3: 00 This It does not exist to be played back within a period of sub-video files, then the whole process can only be played back on at the end of 2:00 accordingly, other channels in 2: 00~3: video files within 00 hours of the child will not have for playback.

发明内容 SUMMARY

[0008] 有鉴于此,本发明提供了一种多路同步回放方法和装置,能够提高录像的查找效率。 [0008] Accordingly, the present invention provides a multi-channel synchronous playback apparatus and method, recording is possible to improve search efficiency.

[0009] 为了达到上述目的,本发明的技术方案是这样实现的: [0009] To achieve the above object, the technical solution of the present invention is implemented as follows:

[0010] 一种多路同步回放方法,包括: [0010] A multiplex synchronous playback method, comprising:

[0011]确定回放时间段以及需要进行多路同步回放的M个通道,M为大于1的正整数; [0011] determines the playback time period and the need for multiple synchronous playback of M channels, M being a positive integer greater than 1;

[0012] 针对每个通道,分别从该通道对应的录像文件中查找出与所述回放时间段相符合的录像文件; [0012], separately for each channel to find the channel from the video file in the video file corresponding to the playback time period and consistent;

[0013]根据查找出的各录像文件的开始时间和结束时间,分别确定出所述回放时间段内的不同子时段内作为主通道的通道,每个子时段内作为主通道的通道均存在要回放的录像文件; [0013] The start time of each video file to find out and end time, respectively, is determined as a main channel within a different sub-channel playback period of the time period, the main channel as the channel to be played back are present within each sub-period video files;

[0014]根据确定结果,按照不同子时段动态切换主通道的方式进行多路同步回放。 [0014] According to the determination result, in a different sub-period dynamic switching mode of the master channel multiplexed synchronous playback.

[0015] 一种多路同步回放装置,包括: [0015] A multiplex synchronous playback apparatus, comprising:

[0016]第一处理模块,用于确定回放时间段以及需要进行多路同步回放的M个通道,M为大于1的正整数,并通知给第二处理模块; [0016] The first processing module for determining a playback time period and M channels need to be multiplexed synchronous playback, and M is a positive integer greater than 1, and informs the second processing module;

[0017]所述第二处理模块,用于针对每个通道,分别从该通道对应的录像文件中查找出与所述回放时间段相符合的录像文件;根据查找出的各录像文件的开始时间和结束时间, 分别确定出所述回放时间段内的不同子时段内作为主通道的通道,每个子时段内作为主通道的通道均存在要回放的录像文件;根据确定结果,按照不同子时段动态切换主通道的方式进行多路同步回放。 [0017] The second processing module is configured to, for each channel separately to find the channel from video file in the video file corresponding to the playback time period and consistent; The start time of each video file to find out the and end time, respectively, is determined as a main channel within a different sub-channel playback period of the time period, as the channel exist in the main channel video file to be played back within each sub-period; based on the determination result, in a different sub-period dynamic mode switching master channel multiplexed synchronous playback.

[001S]可见,采用本发明所述方案,整个多路同步回放过程中不再只使用一个固定不变的主通道,而是按照不同子时段动态切换主通道的方式进行多路同步回放,从而尽可能地使得回放时间段内的所有录像文件均能进行回放,进而提高了录像文件的查找效率。 [001S] seen, the embodiment of the present invention is employed, the entire multi-channel synchronous playback process not only a fixed main channel, but in a different embodiment the main channel sub-period dynamic switching multiplexed synchronous playback, whereby as much as possible so that the playback period of all video files can be played back, and to improve the search efficiency video files.

附图说明 BRIEF DESCRIPTION

[0019]图1为本发明多路同步回放方法实施例的流程图。 [0019] Figure 1 is a flowchart of a multi-channel simultaneous playback method of the invention.

[002°]图2为本发明播放文件列表的示意图。 [002 °] FIG. 2 is a schematic diagram of the present invention play list of files.

[0021]图3为本发明主通道动态切换方式示意图。 [0021] Fig 3 a schematic manner dynamically switching the main channel of the present invention.

[0022]图4为本发明多路同步回放装置实施例的组成结构示意图。 [0022] FIG. 4 is a schematic diagram illustrating the structure of the synchronous playback device according to embodiments of the invention multiplexed.

具体实施方式 Detailed ways

[0023]为了使本发明的技术方案更加清楚、明白,以下参照附图并举实施例,对本发明所述方案作进一步的详细说明。 [0023] In order to make the technical solutions of the present invention more clearly understand, both embodiments with reference to the accompanying drawings, the embodiment of the present invention will be further described in detail.

[0024]图1为本发明多路同步回放方法实施例的流程图。 [0024] Figure 1 is a flowchart of a multi-channel simultaneous playback method of the invention. 如图i所示,包括以下步骤ii〜 14。 As shown in FIG i, comprising the steps of ii~ 14.

[0025]步骤11:确定回放时间段以及需要进行多路同步回放的;^个通道,M为大于i的正整数。 [0025] Step 11: determines the playback time period and the need for a multi-channel synchronous playback; ^ channels, M being a positive integer greater than i.

[0026]回放时间段以及需要进行多路同步回放的通道均可由用户设定。 [0026] The playback time period and the need for multiple channels of the synchronous playback can be set by the user.

[0027]步骤12:针对每个通道,分别从该通道对应的录像文件中查找出与回放时间段相符合的录像文件。 [0027] Step 12: respectively lookup for each channel from the channel video file in the video file corresponding to the playback time period and consistent.

[0028] 本步骤中,针对每个通道,可分别进行以下处理: [0028] In this step, for each channel, the following processing may be performed separately:

[0029] a、针对该通道对应的每个录像文件,分别确定该录像文件的开始时间和结束时间限定出的时间段与回放时间段之间是否存在重叠,如果是,则将该录像文件确定为与回放时间段相符合的录像文件; [0029] a, for each of the video files corresponding to the channel, respectively, to determine the start time and end of the video file if there is an overlap between the period of time defining a playback time period and, if so, it is determined that the video file playback time period is consistent with the video files;

[0030] b、确定与回放时间段相符合的录像文件的总个数是否为〇,如果否,则生成该通道的播放文件列表,播放文件列表中可包括:该通道的通道号、每个与回放时间段相符合的录像文件的预定信息,所述预定信息包括:开始时间和结束时间,如果是,则可结束处理= r隨定出的时间_ [0032] 举例说明: &旦° [0030] b, determining whether a playback time period consistent with the total number of video files is square, and if not, the playlist file generating channel play list file may include: channel number of the channel, each predetermined information and video file playback period of consistent, the predetermined information comprises: a start time and end time, and if so, the processing may be ended with the fix time = r _ [0032] illustration: & amp; denier °

[0033]目放时|自段为1:00〜3:00,某-录像文件的开始时间和结束时间分别为那么像文_刑谢_结棘隱定⑽_、_細是^ [0033] When the project put | from paragraph 1: 00~3: 00, a - start time and end time of the video files are so much like punishment Xie Wen _ _ knot spines hidden set ⑽ _, _ ^ is fine

[0034]酣,隱时隨知⑽〜3:⑻,某—录像文件==,』_餅的开始时间和结束_限定出的时酿' = = 元全重叠。 [0034] intoxicated, disappeared with known ⑽~3: ⑻, a - == video files, "cake _ _ start time and end time defining a stuffed '= = all-membered overlap. 对細与酣时酿鑛合_像文_总个数可能为— 个,也可能为多个,还可能为0个。 Stuffed with fine ore of engagement when intoxicated _ _ image file may be the total number of - a, may also be multiple, possibly to 0. _6]婦副个,胸不作_;如縣—个龄个,腦姓脑麗_放文件列表,播放文件列表中可包括:该通道的通道号、每个与回放时间段相符合的录像文件的预定信息,所述预定信息可包括:开始时间和结束时间。 _6] a woman deputy, chest without _; as the county - a instars, cerebral brain surnamed Li _ the list of release files, files in a playlist can include: channel number of the channel, each video file playback time period consistent with the predetermined information, the predetermined information may include: the start time and end time.

[0037]另外,所述预定fg息还可进—步傭:录像文件的类型、录像文件的存储地址(在硬盘中的存储地址)以及录像文件的长度等,后续可根据这些信息相应地进行录像文件的回放。 [0037] Further, the predetermined information may further into fg - Step Maid: type recording file, video file storage address (the address stored in the hard disk), and the length of the video files and the like, may be performed as appropriate for subsequent information playback of the video file.

[0038]图2为本发明播放文件列表的示意图。 [0038] FIG. 2 is a schematic play list file of the present invention. 如图2所示,假设共存在M个播放文件列表, 分别对应于通道号为1〜M的M个通道,n表示每个通道对应的与回放时间段相符合的录像文件的总个数,为正整数。 As shown, the M files in a playlist is assumed that there were 2, correspond to the channel numbers of channels 1~M M, n is the number corresponding to each channel represents the total playback time period consistent with the video file, It is a positive integer.

[0039] 步骤13:根据查找出的各录像文件的开始时间和结束时间,分别确定出回放时间段内的不同子时段内作为主通道的通道,每个子时段内作为主通道的通道均存在要回放的录像文件。 [0039] Step 13: The start time of each video file to find out and end time, respectively, is determined as a main channel within a different sub-channel playback period of time, as the main channel of the channel are present for each sub-period playback of video files.

[0040] 本步骤的具体实现方式可为: [0040] The specific implementation of this step may be:

[0041] A、将回放时间段的开始时间作为参考时间,并将查找出的各录像文件作为查找范围; [0041] A, a playback start time period as a reference time, and to find out each video file as a discovery range;

[0042] B、确定查找范围中是否存在开始时间早于或等于参考时间的录像文件; [0042] B, to determine whether there Look start time is earlier than or equal to a reference time video file;

[0043]如果是,则将一个开始时间早于或等于参考时间的录像文件作为最新的参考文件; [0043] If so, then a start time is earlier than or equal to the reference time of the video file as the latest reference document;

[0044] 如果否,则从查找范围中确定出开始时间与参考时间距离最近的录像文件,并将其作为最新的参考文件; [0044] If not, from the Look In determining the start time and reference time from the nearest video files, and as the latest reference document;

[0045] 将最新的参考文件对应的通道确定为主通道,并生成一条主通道信息,加入到主通道列表中,该主通道信息中包括:该主通道的开始时间、该主通道的结束时间,以及该主通道的通道号; [0045] The latest file corresponding to the reference channel is determined as a master channel, and generates a main channel information is added to the list of the main channel, the main channel information includes: end time of the start time of the main channel, the main channel , and the main channel of the channel number;

[0046]当最新的参考文件的开始时间早于或等于参考时间、且结束时间等于或晚于回放时间段的结束时间时,该主通道的开始时间为参考时间,该主通道的结束时间为回放时间段的结束时间; [0046] When the start time of the latest reference file is earlier than or equal to the reference time and the end time is equal to or later than the end time of the playback period, the start time of the main channel as the reference time, the end time of the main channel is end playback time period;

[0047] 当最新的参考文件的开始时间晚于参考时间、且结束时间等于或晚于回放时间段的结束时间时,该主通道的开始时间为最新的参考文件的开始时间,该主通道的结束时间为回放时间段的结束时间; [0047] When the start time of the latest reference file is later than the reference time and the end time is equal to or later than the end time of the playback period, the start time of the start time of the main channel is the latest reference file, the main channel end time is the end time of the playback time period;

[0048] 当最新的参考文件的开始时间早于或等于参考时间、且结束时间早于回放时间段的结束时间时,该主通道的开始时间为参考时间,该主通道的结束时间为最新的参考文件的结束时间; [0048] When the start time of the latest reference file is earlier than or equal to the reference time and the end time is earlier than the end time of the playback period, the start time of the main channel as the reference time, the end time of the main channel to the latest reference end time of the file;

[0049] 当最新的参考文件的开始时间晚于参考时间、且结束时间早于回放时间段的结束时间时,该主通道的开始时间为最新的参考文件的开始时间,该主通道的结束时间为最新的参考文件的结束时间; [0049] When the start time of the latest reference file is later than the reference time and the end time is earlier than the end time of the playback period, a start time of the main channel is the start time of the latest reference document, the end time of the main channel time to end the latest reference document;

[0050] 并且,当最新的参考文件的结束时间早于回放时间段的结束时间时,执行步骤C, 否则,结束处理; [0050] Then, when the end time of the latest reference file is earlier than the end time of the playback period, performing step C, and otherwise, the process ends;

[0051] C、确定查找范围中是否存在结束时间晚于最新的参考文件的结束时间的录像文件;如果是,则将结束时间晚于最新的参考文件的结束时间的录像文件作为查找范围,将最新的参考文件的结束时间作为参考时间,并重复执行步骤B,否则,结束处理。 [0051] C, to determine whether there is a video file ending time is later than the end time of the latest reference file Look in; if so, the ending time is later than the end time of the latest record file reference document as Look, the the latest end time reference document as a reference time, and repeat step B, otherwise, the process ends.

[0052]上述步骤B中,当查找范围中开始时间早于或等于参考时间的录像文件的总个数大于1时,可从中选出结束时间最晚的一个录像文件,作为最新的参考文件; The total number of [0052] Step B above, when the start time in the Look than or equal to the reference time is greater than a recording file, a video file could select the latest ending time, as the latest reference document;

[0053]同样地,当查找范围中开始时间与参考时间距离最近的录像文件的总个数大于丄时,可从中选出结束时间最晚的一个录像文件,作为最新的参考文件。 [0053] Similarly, when the Look in start time from the nearest video files with the reference time is greater than the total number of Shang, from which you can select a video file no later than the end of time, as the latest reference document.

[00M]选择结束时间最晚的录像文件作为最新的参考文件,可减少多路同步回放过程中的主通道切换次数,从而可节省系统资源。 [00M] to select the recording end time of the latest file as the latest reference file, can reduce the multi-channel synchronous playback process of the main channel switching times, thereby saving system resources.

[0055]另外,假设参考时间为2:00,并假设查找范围中的一个录像文件的开始时间为1: 50,另一个录像文件的开始时间为2:05,其它录像文件的开始时间均晚于2:05,那么如步骤B中所述,可选择开始时间为1: 5〇的录像文件作为最新的参考文件,而不是开始时间为2: 〇5 的录像文件,相应地,将开始时间为1: 5〇的录像文件对应的通道作为最新的主通道,这样处理的好处在于:可实现连续的多路同步回放,而不至于出现5分钟的中断时间,从而导致这5 分钟内无法进行录像文件的回放,进而降低了录像文件的查找效率。 [0055] It is assumed that the reference time is 2:00, and assuming a start time of the video file to find the range of 1: 50, a start time of 2:05 another video file, the start time of other video files are later at 2:05, then as in the step B, a start time is selectable: 5〇 video files as the latest reference file instead of the start time is 2: 〇5 video file, and accordingly, the start time 1: 5〇 video files corresponding to the channel as the latest of the main channel, the benefits of this treatment are: to achieve a continuous multi-channel synchronous playback it, rather than five minutes downtime occurs, making it impossible to carry out this within 5 minutes playback of video files, thus reducing the video file search efficiency.

[0056] 上述过程可举例说明如下: [0056] The above process may be illustrated as follows:

[0057]假设用户指定的回放时间段为1:00〜3:00,需要进行多路同步回放的通道数为4, 分别为通道1、通道2、通道3和通道4; [0057] Assume that the user specifies the playback time period is 1: 00~3: 00, required number of multiplexed synchronous playback channels 4, respectively, channel 1, channel 2, channel 3 and channel 4;

[0058]其中,通道1对应的与回放时间段相符合的录像文件为:录像文件al和录像文付: a2,录像文件al的开始时间和结束时间分别为12: 5〇和1: 3〇,录像文件a2的开始时间和结束时间分别为2:40〜3:10; [0058] wherein, the channel 1 corresponding to the playback time period consistent with the video file: video files and video packets pay al: A2, al video file start and end times were 12: 1 and 5〇: 3〇 , video file start time and end time a2 were 2: 40~3: 10;

[0059]通道2对应的与回放时间段相符合的录像文件为:录像文件b 1,开始时间和结束时• 间分别为1:30〜2:30; [0059] channel 2 coincide with the playback time period corresponding to the video file: video file b 1, • the start time and end time are between 1: 30~2: 30;

[0060]通道3对应的与回放时间段相符合的录像文件为:录像文件cl,开始时间和结束时_ 间分别为1:20和2:50; [0060] The channel 3 corresponding to the playback time period consistent with the video file: a file recording cl, start time and end time _ between 1:20 and 2:50, respectively;

[0061]通道4对应的与回放时间段相符合的录像文件为:录像文件dl,开始时间和结间分别为1:55和2:55; [0061] channel and the playback time period 4 conform to corresponding video file: a file between recording dl, respectively, the start and end time is 1:55 and 2:55;

[0062] 那么,在1:〇〇〜1:3〇的子时段内,可将通道1作为主通道,对应的参考文件为录像文件al;在1:3〇〜2:5〇的子时段内,可将通道3作为主通道,对应的参考文件为录像文件〇1. 在2:50〜3:00的子时段内,可将通道1作为主通道,对应的参考文件为录像文件a2。 [0062] Then, in 1: 〇〇~1: 3〇 the sub-period, the channel 1 may be used as the primary channel for the corresponding reference video files Al; in 1: 5〇 the sub-period: 3〇~2 within, the channel 3 may be used as the main channel, the corresponding reference file in the video file 〇1 2: 50~3: a sub-period 00, the channel 1 may be used as the primary channel for the corresponding reference video file A2. ;

[0063] 步骤14:根据确定结果,按照不同子时段动态切换主通道的方式进行多路同步回放。 [0063] Step 14: According to the determination result, in a different sub-period dynamic switching mode of the master channel multiplexed synchronous playback.

[0064] 本步骤中,可根据主通道列表中的各主通道信息的生成时间由先到后的顺序,在不同子时段动态切换主通道,并按照各播放文件列表中所记录的信息,实现多路同步回放。 [0064] In this step, the order of the first to be dynamically switched according to the generation time of each of the main channel the main channel list information in a different sub-period of the main channel, and information in the file for each play list is recorded, to achieve multi-channel synchronous playback.

[0065] 图3为本发明主通道动态切换方式示意图。 [0065] Fig 3 a schematic manner dynamically switching the main channel of the present invention. 如图3所示,结合上述举例,在1:00〜1: 30这一子时段内,按照以通道1为主通道的方式进行多路同步回放,之后切换到通道3,即在1:30〜2:50这一子时段内,按照以通道3为主通道的方式进行多路同步回放,之后再切换到通道1,即在2:50〜3:00这一子时段内,按照以通道1为主通道的方式进行多路同步回放;另外,对于录像文件al来说,会从1: 〇〇开始对其进行回放,即在此之前不会对其进行回放,对于录像文件a2来说,当到达3:〇〇时,即会结束对其进行回放,即不会再对其继续进行回放, 对于录像文件cl来说,会从1: 2〇开始到2:50结束均对其进行回放,只是在1: 30〜2: 5〇这一子时段内,其对应的通道为主通道,在1:2〇〜1:30这一子时段内,其对应的通道不是主通道。 3, in conjunction with the above-described example, in 1: 00~1: 30 within the sub-periods, synchronous playback multiplexed channels according to embodiment 1 of the main channel, after switching to the channel 3, i.e., at 1:30 ~ 2: 50 sub-periods of this, according to the channel multiplexing channel 3 based synchronous playback mode, then after switching to the channel 1, i.e. 2: 50~3: 00 within the sub-periods, according to the channel 1 is the primary channel approach to multi-channel synchronous playback; in addition, al video files, it will be from 1: playback took office began its that they will not be before playback for video files is a2 when reaching the 3: took office, will end its playback, that it will not continue playback for video files cl, it will be from 1: 2〇 2:50 start to end them all playback, only 1: 30~2: 5〇 within the sub-periods, the corresponding channel as a master channel, in 1: 2〇~1: within this sub-period 30, the corresponding channel is not the primary channel.

[0066] 另外,在多路同步回放过程中,可根据各播放文件列表中记录的信息,针对每个录像文件,分别按照该录像文件的存储地址获取该录像文件,并按照该录像文件的类型、开始时间和长度等进行该录像文件的回放,具体实现为现有技术。 [0066] Further, in the multi-channel synchronous playback process may be, for each video file, respectively, to obtain the file record address is stored in accordance with the video information of each file according to the record of the play list file, and in accordance with the type of recording file , start time and length of the playback of the video file, embodied as prior art.

[0067] 基于上述介绍,图4为本发明多路同步回放装置实施例的组成结构示意图。 [0067] Based on the above description, FIG. 4 is a schematic diagram illustrating multiple synchronous playback apparatus configuration example embodiment of the invention. 如图4 所示,包括: As shown in FIG 4, comprising:

[0068] 第一处理模块,用于确定回放时间段以及需要进行多路同步回放的M个通道,M为大于1的正整数,并通知给第二处理模块; [0068] The first processing module for determining a playback time period and M channels need to be multiplexed synchronous playback, and M is a positive integer greater than 1, and informs the second processing module;

[0069] 第二处理模块,用于针对每个通道,分别从该通道对应的录像文件中查找出与所述回放时间段相符合的录像文件;根据查找出的各录像文件的开始时间和结束时间,分别确定出所述回放时间段内的不同子时段内作为主通道的通道,每个子时段内作为主通道的通道均存在要回放的录像文件;根据确定结果,按照不同子时段动态切换主通道的方式进行多路同步回放。 [0069] The second processing module for, for each channel separately to find the channel from video file in the video file corresponding to the playback time period and consistent; according to find out the start and end of each record file time, respectively, is determined as a main channel within a different sub-channel playback period of the time period, as the channel exist in the main channel video file to be played back within each sub-period; based on the determination result, in a different sub-period dynamic switching master mode channel multiplexed synchronous playback.

[0070]具体地, [0070] In particular,

[0071]第二处理模块可针对每个通道,并针对该通道对应的每个录像文件,分别确定该录像文件的开始时间和结束时间限定出的时间段与所述回放时间段之间是否存在重叠,如果是,则将该录像文件确定为与所述回放时间段相符合的录像文件;确定与所述回放时间段相符合的录像文件的总个数是否为0,如果否,则生成该通道的播放文件列表,该播放文件列表中包括:该通道的通道号、每个与所述回放时间段相符合的录像文件的预定信息,所述预定信息包括:开始时间和结束时间。 [0071] The second processing module for each channel, and for each of the video file corresponding to the channel, respectively, to determine the start time of the video file and the time between the end of the presence or absence of a defined period of time and the playback time period overlap, if so, the video files and video files is determined as the playback period consistent; determining the playback time period and the total number of video files conforming is 0, and if not, generates the channel playlist file, the playlist file list comprises: channel number of the channel, the predetermined information of each video file and the playback time period consistent, the predetermined information comprises: a start time and end time.

[0072]另外, [0072] Further,

[0073]第二处理模块可将所述回放时间段的开始时间作为参考时间,将查找出的各录像文件作为查找范围,并根据所述参考时间和所述查找范围执行以下预定处理: [0073] The second process module may be the playback start time period as a reference time, each of the video files to find out as a discovery range, and performs according to the reference time and the predetermined range of the lookup process:

[0074]确定所述查找范围中是否存在开始时间早于或等于所述参考时间的录像文件; [0074] The lookup determines whether there is a range start time is earlier than or equal to the reference time of the video file;

[0075]如果是,则将一个开始时间早于或等于所述参考时间的录像文件作为最新的参考文件; [0075] If so, the start time is earlier than or equal to the reference video file as the latest time reference;

[0076]如果否,则从所述查找范围中确定出开始时间与所述参考时间距离最近的录像文件,并将其作为最新的参考文件; [0076] If not, from the Look In determining the start time and the reference time from the nearest video files, and as its latest reference document;

[0077]将最新的参考文件对应的通道确定为主通道,并生成一条主通道信息,加入到主通道列表中,该主通道信息中包括:该主通道的开始时间、该主通道的结束时间,以及该主通道的通道号; [0077] The latest file corresponding to the reference channel is determined as a master channel, and generates a main channel information is added to the list of the main channel, the main channel information includes: end time of the start time of the main channel, the main channel , and the main channel of the channel number;

[0078]当最新的参考文件的开始时间早于或等于所述参考时间、且结束时间等于或晚于所述回放时间段的结束时间时,该主通道的开始时间为所述参考时间,该主通道的结束时间为所述回放时间段的结束时间; [0078] When the start time of the latest reference file is earlier than or equal to the reference time and the end time is equal to or later than the playback end time of the period, the start time of the main channel to the reference time, the end time of the main channel is the playback end time of the time period;

[0079]当最新的参考文件的开始时间晚于所述参考时间、且结束时间等于或晚于所述回放时间段的结束时间时,该主通道的开始时间为最新的参考文件的开始时间,该主通道的结束时间为所述回放时间段的结束时间; [0079] When the latest start time is later than said reference reference time and the end time is equal to or later than the playback end time of the period, the start time of the main channel is the start time of the latest reference file, the end time is the end time of the main channel of the playback period;

[0080] 当最新的参考文件的开始时间早于或等于所述参考时间、且结束时间早于所述回放时间段的结束时间时,该主通道的开始时间为所述参考时间,该主通道的结束时间为最新的参考文件的结束时间; [0080] When the start time of the latest reference file is earlier than or equal to the reference time and the end time is earlier than the end time of the playback period, the start time of the main channel to the reference time, the main channel the end time is the end time of the latest reference document;

[0081] 当最新的参考文件的开始时间晚于所述参考时间、且结束时间早于所述回放时间段的结束时间时,该主通道的开始时间为最新的参考文件的开始时间,该主通道的结束时间为最新的参考文件的结束时间; [0081] When the latest start time is later than said reference reference time and the end time is earlier than a playback end time of the period, the time of the start time for the main channel of the reference date, the main the end of the passage of time is the end time of the latest reference document;

[0082] 并且,第二处理模块还可进一步用于,当最新的参考文件的结束时间早于所述回放时间段的结束时间时,确定所述查找范围中是否存在结束时间晚于最新的参考文件的结束时间的录像文件,如果是,则将结束时间晚于最新的参考文件的结束时间的录像文件作为所述查找范围,将最新的参考文件的结束时间作为所述参考时间,并重复执行所述预定处理,否则,结束处理。 [0082] Then, the second processing module may be further configured to, when the end time of the latest reference file is earlier than a playback end time of the time period, determining whether the end time of the latest reference Look in the presence of the late video files ending time of the file, and if so, will end later than the end time of the latest record file reference document as the look, the latest end time reference document as the reference time, and repeat said predetermined process, otherwise, the process ends.

[0083] 另外, [0083] Further,

[0084]第二处理模块还可进一步用于,当所述查找范围中开始时间早于或等于所述参考时间的录像文件的总个数大于1时,从中选出结束时间最晚的一个录像文件,作为最新的参考文件; [0084] The second processing module may be further used, when the start time in the Look than or equal to the total number of video files reference time is greater than 1, is selected from one of the latest recording end time file, as the latest reference document;

[0085]当所述查找范围中开始时间与所述参考时间距离最近的录像文件的总个数大于1 时,从中选出结束时间最晚的一个录像文件,作为最新的参考文件。 When [0085] When the start time of the Look nearest video files with the total number is greater than a reference time, select a video file from the latest end time, as the latest reference document.

[0086]再有, [0086] Furthermore,

[0087] 所述录像文件的预定信息还可进一步包括:录像文件的类型、录像文件的存储地址以及录像文件的长度; [0087] The predetermined information may further include recording file: length type video files, video files, and the storage address of the video files;

[0088]相应地,第二处理模块可根据所述主通道列表中的各主通道信息的生成时间由先到后的顺序,在不同子时段动态切换主通道,并按照各播放文件列表中所记录的信息,实现多路同步回放。 [0088] Accordingly, the second processing module may order from the first to dynamically switch the main passage at different time for each sub-period according to the generated main channel in the main channel list information, and in accordance with each of the files in a playlist information recorded multi-channel synchronous playback.

[0089]图4所示装置实施例的具体工作流程请参照前述方法实施例中的相应说明,此处不再赘述。 The workflow is an embodiment of the apparatus of [0089] FIG. 4 refer to the corresponding description in the method embodiment, is not described herein. 在实际应用中,图4所示装置可为DVR等。 In practice, the apparatus shown in FIG. 4 and the like may be a DVR.

[0090]综上所述,以上仅为本发明的较佳实施例而己,并非用于限定本发明的保护范围。 [0090] In summary, the foregoing is only preferred embodiments of the present invention and have not intended to limit the scope of the present invention. 凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。 Any modification within the spirit and principle of the present invention, made, equivalent substitutions, improvements, etc., should be included within the scope of the present invention.

Claims (10)

1.一种多路同步回放方法,其特征在于,包括: 确走回放时间段以及需要进行多路同步回放的]y[个通道,M为大于1的正整数; 针对每个通道,分别从该通道对应的录像文件中查找出与所述回放时间段相符合的录像文件; 根据查找出的各录像文件的开始时间和结束时间,分别确定出所述回放时间段内的不同子时段内作为主通道的通道,每个子时段内作为主通道的通道均存在要回放的录像文件; 根据确定结果,按照不同子时段动态切换主通道的方式进行多路同步回放; 所述按照不同子时段动态切换主通道的方式进行多路同步回放包括:根据所述主通道列表中的各主通道信息的生成时间由先到后的顺序,在不同子时段动态切换主通道。 A multi-channel synchronous playback method, comprising: determining a playback time period and the need to take the multiplexing of synchronous playback] y [channels, M being a positive integer greater than 1; for each channel, respectively, from video files corresponding to the channel with the video file to find out the playback time period consistent; the start time of each video file to find out and end time, respectively, in different sub-period is determined that the playback period as channel main channel, each sub-channel as the main channel period are present video file to be played back; based on the determination result, in a different embodiment the main channel sub-multiplex period dynamic switching synchronous playback; the dynamic switching in a different sub-period way main channel multiplexed synchronous playback comprising: the generation time of each of the main channel the main channel information list by the order of the first to dynamically switch the main channels in different sub-period.
2.根据权利要求1所述的方法,其特征在于, 所述针对每个通道,分别从该通道对应的录像文件中查找出与所述回放时间段相符合的录像文件包括: 针对每个通道,分别进行以下处理: 针对该通道对应的每个录像文件,分别确定该录像文件的开始时间和结束时间限定出的时间段与所述回放时间段之间是否存在重叠,如果是,则将该录像文件确定为与所述回放时间段相符合的录像文件; 确定与所述回放时间段相符合的录像文件的总个数是否为〇,如果否,则生成该通道的播放文件列表,该播放文件列表中包括:该通道的通道号、每个与所述回放时间段相符合的录像文件的预定信息,所述预定信息包括:开始时间和结束时间。 2. The method according to claim 1, wherein, for said each channel, separately from the video file to find the channel corresponding to the time period coincide with the playback of the video file comprising: for each channel , respectively, the following process: for each video file corresponding to the channel, respectively, to determine the start time and end of the video file if there is an overlap between the defined time-out period and the playback time period, if yes, the video files and video files is determined as the playback period consistent; determining whether the playback time period and the total number of video files conforming to square, and if not, passage of the playlist file is generated, the playing file list comprises: channel number of the channel, the predetermined information of each video file and the playback time period consistent, the predetermined information comprises: a start time and end time.
3.根据权利要求2所述的方法,其特征在于, 所根据查找出的各录像文件的开始时间和结束时间,分别确定出所述回放时间段内的不同子时段内作为主通道的通道包括: A、 将所述回放时间段的开始时间作为参考时间,并将查找出的各录像文件作为查找范围; B、 确定所述查找范围中是否存在开始时间早于或等于所述参考时间的录像文件; 如果是,则将一个开始时间早于或等于所述参考时间的录像文件作为最新的参考文件; 如果否,则从所述查找范围中确定出开始时间与所述参考时间距离最近的录像文件, 并将其作为最新的参考文件; 将最新的参考文件对应的通道确定为主通道,并生成一条主通道信息,加入到主通道列表中,该主通道信息中包括:该主通道的开始时间、该主通道的结束时间,以及该主通道的通道号; 当最新的参考文件的开始时间 3. The method according to claim 2, characterized in that, according to the start time of each video file to find out and end time, respectively, in different sub-channels is determined that the playback period of time as the master channel comprising : a, the playback start time period as a reference time, and to find out each video file as a discovery range; B, determining whether there is a start the lookup time range equal to or earlier than the reference time of the recording file; if so, a start time earlier than or equal to the reference time of the video file as the latest reference document; if not, from the determined start time and the reference time from the nearest video look in file and a new file reference; the latest file corresponding to the reference channel is determined as a master channel, and generates a main channel information is added to the list of the main channel, the main channel information includes: the start of the main channel time, end time of the main channel and the main channel of the channel number; when the start time of the latest reference file 早于或等于所述参考时间、且结束时间等于或晚于所述回放时间段的结束时间时,该主通道的开始时间为所述参考时间,该主通道的结束时间为所述回放时间段的结束时间; 当最新的参考文件的开始时间晚于所述参考时间、且结束时间等于或晚于所述回放时间段的结束时间时,该主通道的开始时间为最新的参考文件的开始时间,该主通道的结束时间为所述回放时间段的结束时间; 当最新的参考文件的开始时间早于或等于所述参考时间、且结束时间早于所述回放时间段的结束时间时,该主通道的开始时间为所述参考时间,该主通道的结束时间为最新的参考文件的结束时间; 当最新的参考文件的开始时间晚于所述参考时间、且结束时间早于所述回放时间段的结束时间时,该主通道的开始时间为最新的参考文件的开始时间,该主通道的结束时间为最新 Equal to or earlier than the reference time and the end time is equal to or later than the playback end time of the period, the start time of the main channel to the reference time, the end time of the main channel is the playback period end time; start time when the latest reference file is later than the reference time and the end time is equal to or later than the playback end time of the period, the time of the start time for the main channel of the latest reference file , the end time of the main channel is the playback end time of the time period; when the start time of the latest reference file is earlier than or equal to the reference time and the end time is earlier than the end time of the playback period, the start time of the main channel to the reference time, the end time of the main channel is the latest end time of the reference file; when the start time of the latest reference file is later than the reference time and the end time is earlier than the playback time At the end of the time period, the start time of the main channel of the latest start time for the reference document, end time, the main channel for the latest 参考文件的结束时间; 并且,当最新的参考文件的结束时间早于所述回放时间段的结束时间时,执行步骤C, 否则,结束处理; C、确定所述查找范围中是否存在结束时间晚于最新的参考文件的结束时间的录像文件;如果是,则将结束时间晚于最新的参考文件的结束时间的录像文件作为所述查找范围, 将最新的参考文件的结束时间作为所述参考时间,并重复执行步骤B,否则,结束处理。 Reference end time; and, when the end time of the latest reference file is earlier than a playback end time of the time period, performing step C, and otherwise, the processing ends; C, the lookup range determining whether there is an end time later in the end time of the latest record file reference document; if it is, it will end in late recording files ending time of the latest reference document as the look, the latest end time reference document as the reference time and repeat step B, otherwise, the process ends.
4. 根据权利要求3所述的方法,其特征在于, 该方法进一步包括: 当所述查找范围中开始时间早于或等于所述参考时间的录像文件的总个数大于1时, 从中选出结束时间最晚的一个录像文件,作为最新的参考文件; 当所述查找范围中开始时间与所述参考时间距离最近的录像文件的总个数大于1时, 从中选出结束时间最晚的一个录像文件,作为最新的参考文件。 4. The method according to claim 3, characterized in that the method further comprises: when the start time in the Look than or equal to the total number of video files reference time is greater than 1, is selected from the latest end time of a video file, as the latest reference document; when the look in start time from the nearest video files with the reference time is greater than the total number of 1, to choose a time later than the end of video files, as the latest reference document.
5. 根据权利要求3或4所述的方法,其特征在于, 所述录像文件的预定信息进一步包括:录像文件的类型、录像文件的存储地址以及录像文件的长度。 5. The method of claim 3 or claim 4, wherein the predetermined information of the video file further comprises: a length of the type of video files, video files, and stores the address of the record file.
6. —种多路同步回放装置,其特征在于,包括: 第一处理模块,用于确定回放时间段以及需要进行多路同步回放的M个通道,M为大于1 的正整数,并通知给第二处理模块; 所述第二处理模块,用于针对每个通道,分别从该通道对应的录像文件中查找出与所述回放时间段相符合的录像文件;根据查找出的各录像文件的开始时间和结束时间,分别确定出所述回放时间段内的不同子时段内作为主通道的通道,每个子时段内作为主通道的通道均存在要回放的录像文件;根据确定结果,按照不同子时段动态切换主通道的方式进行多路同步回放; 所述第二处理模块,进一步用于根据所述主通道列表中的各主通道信息的生成时间由先到后的顺序,在不同子时段动态切换主通道。 6 - Multiple Species synchronous playback apparatus comprising: a first processing module for determining a playback time period and the need for multiple synchronous playback of M channels, M being a positive integer greater than 1, and notifies the a second processing module; the second processing module, for, respectively, to find for each channel from the channel video file in the video file corresponding to the playback time period and consistent; according to find out each record file start time and end time, respectively, is determined as a main channel within a different sub-channel playback period of the time period, as the channel exist in the main channel video file to be played back within each sub-period; based on the determination result, according to the different sub- dynamically switching period for the master channel synchronous playback mode multiplexer; the second processing module is further for generating a time in accordance with each of the main channel the main channel list information by the first-order, moving in different sub-period switch the main channel.
7.根据权利要求6所述的装置,其特征在于, 所述第二处理模块针对每个通道,并针对该通道对应的每个录像文件,分别确定该录像文件的开始时间和结束时间限定出的时间段与所述回放时间段之间是否存在重叠,如果是,则将该录像文件确定为与所述回放时间段相符合的录像文件;确定与所述回放时间段相符合的录像文件的总个数是否为〇,如果否,则生成该通道的播放文件列表,该播放文件列表中包括:该通道的通道号、每个与所述回放时间段相符合的录像文件的预定信息,所述预定信息包括:开始时间和结束时间。 7. The device according to claim 6, wherein said second processing module for each channel, and for each of the video file corresponding to the channel, respectively, to determine the start time and end time of the video file defining an the period between the playback time period and if there is an overlap, if so, the video files and video files is determined as the playback period consistent; video file and determining the playback time period is consistent whether the total number of square, and if not, passage of the playlist file is generated, the play list file comprising: a predetermined information channel number of the channel, each video file and the playback time period consistent, the said predetermined information includes: the start time and end time.
8.根据权利要求7所述的装置,其特征在于, 所述第二处理模块将所述回放时间段的开始时间作为参考时间,将查找出的各录像文件作为查找范围,并根据所述参考时间和所述查找范围执行以下预定处理: 确定所述查找范围中是否存在开始时间早于或等于所述参考时间的录像文件; 如果是,则将一个开始时间早于或等于所述参考时间的录像文件作为最新的参考文件; 如果否,则从所述查找范围中确定出开始时间与所述参考时间距离最近的录像文件, 并将其作为最新的参考文件; 将最新的参考文件对应的通道确定为主通道,并生成一条主通道信息,加入到主通道列表中,该主通道信息中包括:该主通道的开始时间、该主通道的结束时间,以及该主通道的通道号; 当最新的参考文件的开始时间早于或等于所述参考时间、且结束时间等于或晚于所述回 8. The apparatus according to claim 7, characterized in that the second processing module to the playback start time period as a reference time, each of the video files to find out as a discovery range, and according to the reference look time and the predetermined processing to perform the following: determining whether there is a start time earlier than the discovery range or equal to the reference time of the video file; if so, a start time is earlier than or equal to the reference time video files as the latest reference document; if not, to find the range from the determined start time and the reference time from the nearest video files, and files as the latest reference; the latest reference file corresponding to a channel determining a master channel, and generates a main channel information is added to the list of the main channel, the main channel information comprises: a start time of the main channel, the end time of the main channel, the main channel and channel number; when the latest start time reference is equal to or earlier than the reference time and the end time is equal to or later than the return 时间段的结束时间时,该主通道的开始时间为所述参考时间,该主通道的结束时间为所述回放时间段的结束时间; 当最新的参考文件的开始时间晚于所述参考时间、且结束时间等于或晚于所述回放时间段的结束时间时,该主通道的开始时间为最新的参考文件的开始时间,该主通道的结束时间为所述回放时间段的结束时间; 当最新的参考文件的开始时间早于或等于所述参考时间、且结束时间早于所述回放时间段的结束时间时,该主通道的开始时间为所述参考时间,该主通道的结束时间为最新的参考文件的结束时间; 当最新的参考文件的开始时间晚于所述参考时间、且结束时间早于所述回放时间段的结束时间时,该主通道的开始时间为最新的参考文件的开始时间,该主通道的结束时间为最新的参考文件的结束时间; 并且,所述第二处理模块进一步 At the end of the time period, the start time of the main channel to the reference time, the end time of the main channel is the playback end time of the time period; when the start time of the latest reference file is later than the reference time, and the end time is equal to or later than the end of the time period of the playback start time of the main channel is the start time of the latest reference document, the end time of the main channel is the playback end time of the time period; when the latest references for the start time is earlier than or equal to the reference time and the end time is earlier than the end time of the playback period, a start time of the main channel is the reference time, the end time of the main channel is the latest an end time reference; and when the latest start time is later than said reference reference time and the end time is earlier than a playback end time of the period, the start time of the main channel is the start of the latest reference time, end time of the main channel is the latest end time reference; and the second processing module further 于,当最新的参考文件的结束时间早于所述回放时间段的结束时间时,确定所述查找范围中是否存在结束时间晚于最新的参考文件的结束时间的录像文件,如果是,则将结束时间晚于最新的参考文件的结束时间的录像文件作为所述查找范围,将最新的参考文件的结束时间作为所述参考时间,并重复执行所述预定处理, 否则,结束处理。 To, when the end time of the latest reference document earlier than the end time of the playback time period to determine whether there is video file to find the ending time of the end time is later than the latest reference range, and if so, end time is later than the end time of the latest record file reference document as the look, the latest end time reference document as the reference time, and repeat the predetermined process, otherwise, the process ends.
9.根据权利要求8所述的装置,其特征在于, 所述第二处理模块进一步用于,当所述查找范围中开始时间早于或等于所述参考时间的录像文件的总个数大于1时,从中选出结束时间最晚的一个录像文件,作为最新的参考文件; 所述第二处理模块进一步用于,当所述查找范围中开始时间与所述参考时间距离最近的录像文件的总个数大于1时,从中选出结束时间最晚的一个录像文件,作为最新的参考文件。 9. The apparatus according to claim 8, wherein said second processing module is further for, when the start time in the Look than or equal to the total number of video files is greater than the reference time 1 when, to choose a video file no later than the end of time, as the latest reference document; the second processing module is further configured, when the look in start time and the total time from the nearest reference video files when the number is greater than 1, to choose a video file no later than the end of time, as the latest reference document.
10.根据权利要求8或9所述的装置,其特征在于, 所述录像文件的预定信息进一步包括:录像文件的类型、录像文件的存储地址以及录像文件的长度。 10. The apparatus of claim 8 or claim 9, wherein the predetermined information of the video file further comprises: a length of the type of video files, video files, and stores the address of the record file.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1860469A (en) * 2003-10-16 2006-11-08 学校法人汉阳学院 Method for serving multimedia data on demand using dynamic channel and apparatus there-of
CN201781583U (en) * 2010-01-22 2011-03-30 深圳市同洲电子股份有限公司 Multichannel server video playback synchronous control system
CN102623032A (en) * 2012-04-01 2012-08-01 深圳英飞拓科技股份有限公司 Method for realizing synchronous playback of hard disk recorder
CN102647621A (en) * 2012-04-28 2012-08-22 武汉兴图新科电子股份有限公司 Video synchronous playback device and method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6912717B2 (en) * 2000-12-06 2005-06-28 Microsoft Corporation Methods and systems for implementing dynamic properties on objects that support only static properties

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1860469A (en) * 2003-10-16 2006-11-08 学校法人汉阳学院 Method for serving multimedia data on demand using dynamic channel and apparatus there-of
CN201781583U (en) * 2010-01-22 2011-03-30 深圳市同洲电子股份有限公司 Multichannel server video playback synchronous control system
CN102623032A (en) * 2012-04-01 2012-08-01 深圳英飞拓科技股份有限公司 Method for realizing synchronous playback of hard disk recorder
CN102647621A (en) * 2012-04-28 2012-08-22 武汉兴图新科电子股份有限公司 Video synchronous playback device and method

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