CN101534386A - Video replacing method, video playing system and device - Google Patents
Video replacing method, video playing system and device Download PDFInfo
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- CN101534386A CN101534386A CN200810247314A CN200810247314A CN101534386A CN 101534386 A CN101534386 A CN 101534386A CN 200810247314 A CN200810247314 A CN 200810247314A CN 200810247314 A CN200810247314 A CN 200810247314A CN 101534386 A CN101534386 A CN 101534386A
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Abstract
The invention discloses a video replacing method, a video playing system and a device thereof, which are applied to radio and television playing process. The method comprises that: a central server detects a synthetic playing program list; when a trigger event which is set to start video replacing is detected, a characteristic signal is inserted on an idle audio channel of a video broadcasting signal to be transmitted according to the trigger event so as to acquire a synthetic video broadcasting signal; a local server receives the synthetic video broadcasting signal transmitted by the central server to detect the idle audio channel; and when the characteristic signal is detected, a time slice capable of playing a replaced video can be determined according to the characteristic signal, and content data of the acquired replaced video is played in the time slice. Through accurately controlling a trigger point by the trigger event, automatic replacing of video of different places can be realized, and the method has high control accuracy, and is timely and precise.
Description
Technical field
The present invention relates to radio and television Broadcast Control technical field, refer to replacement method, audio/video player system and the device of a kind of strange land video playback especially.
Background technology
The program of radio and television broadcasts general launching tower by TV station and sends video broadcast signal, being sent to various places plays, if broadcast content is wanted to change in various places, a certain section video content wherein replaced as required, then can only be realized replacing the video content of a certain period by the mode of artificial insertion program.
Along with the fast development of broadcast television technique and the variation of radio and television demand, in radio and television Broadcast Control field, the demand that replace in the broadcast program contents strange land is more and more stronger.Rely on the manual observation programme content at present, search the interchangeable period, manual then mode of replacing, there is the control inaccuracy, the labor intensive resource, and may ignore the phenomenon of replacement because of personnel's fatigue, broadcast to various places and bring benefit loss or potential safety hazard.Therefore precision needs, time needs, benefit needs and the security needs in 24 hour that replace in the strange land can not have been satisfied.
And in the radio data system, whether the broadcast program content is legal, relates to national security, social stability and national image, is a very crucial problem.Have only legal program, just can be used for playing.In the system of existing TV station broadcast program, when broadcast program, needing to replace the partial video content is local content, as advertisement, weather forecast or relate to the problem of local custom, if the replacement mistake, just will bring benefits problem and safety problem cause heavy losses.And the mode of above-mentioned artificial replacement can not well be carried out security control when TV programme is replaced broadcast, side by side method, system can not be controlled the duration of replacing the video/audio program, the period of just reserving 10 seconds such as the programme of centring system does replacement for the ground method, system, after after 10 seconds, just essential switchback, continue to relay the signal of center system, if the replacement program duration that the ground method, system inserts was greater than 10 seconds, then can be with regard to switchback when the replacement program does not also play, at this moment, the replacement program of insertion can not obtain good result of broadcast.
Therefore, need to adopt new technical method and system to replace this manual substitute mode, realize detecting automatically and replacing, need to reach the so high control precision of " frame " level simultaneously.
Summary of the invention
The embodiment of the invention provides a kind of video replacing method, audio/video player system and device, and be used for solving prior art and can not detect and replace video content automatically, and problem low to the control precision of replacing the time, poor accuracy.
A kind of video replacing method comprises:
Central server detects synthetic broadcast items list; When detect setting be used to start the trigger event of video replacing the time, on the idle voice-grade channel of video broadcast signal to be sent, insert characteristic signal according to described trigger event, obtain the synthetic video broadcast singal;
Local server receives the synthetic video broadcast singal that described central server sends, and described idle voice-grade channel is detected; When detecting described characteristic signal, determine to play the time period of replacing video according to described characteristic signal, and in the described time period, play the content-data of the replacement video that gets access to.
A kind of audio/video player system comprises:
Central server is used for synthetic broadcast items list is detected; When detect setting be used to start the trigger event of video replacing the time, on the idle voice-grade channel of video broadcast signal to be sent, insert characteristic signal according to described trigger event, obtain the synthetic video broadcast singal;
Local server is used to receive the synthetic video broadcast singal that described central server sends, and described idle voice-grade channel is detected; When detecting described characteristic signal, determine to play the time period of replacing video according to described characteristic signal, and in the described time period, play the content-data of the replacement video that gets access to.
A kind of central server comprises:
The trigger event detection module is used for synthetic broadcast items list is detected;
The characteristic signal insert module, when detect setting be used to start the trigger event of video replacing the time, on the idle voice-grade channel of video broadcast signal to be sent, insert characteristic signal according to described trigger event, obtain the synthetic video broadcast singal.
A kind of local server comprises:
Receiver module is used to receive the synthetic video broadcast singal that central server sends;
Detection module is used for the idle voice-grade channel of described synthetic video broadcast singal is detected;
The time period determination module is used for determining to play the time period of replacing video according to the detected characteristic signal of described detection module;
The video replacing module is used in the time period that described time period determination module is determined playing the content-data of the replacement video that gets access to.
Video replacing method, audio/video player system and device that the embodiment of the invention provides detect synthetic broadcast items list by central server; When detecting the trigger event of setting, on the idle voice-grade channel of video broadcast signal to be sent, insert characteristic signal according to described trigger event, obtain the synthetic video vision signal; Local server receives the synthetic video broadcast singal that central server sends, and idle voice-grade channel is detected; When detecting characteristic signal, determine to play the time period of replacing video according to characteristic signal, in the described time period, play the content-data of the replacement video that gets access to.Said method is accurately controlled the trigger point by trigger event, by inserting the time span that video is replaced in characteristic signal control, realized the automatic replacement of strange land video, and its control is simple effectively, control precision is high, and can guarantees that the strange land video replacing in time, accurately.
Description of drawings
Fig. 1 is the flow chart that inserts characteristic signal in the embodiment of the invention;
Fig. 2 is the flow chart of synthetic broadcast items list in the embodiment of the invention;
Fig. 3 is for obtaining and play the flow chart of replacing video in the embodiment of the invention;
Fig. 4 is the structural representation of audio/video player system in the embodiment of the invention;
Fig. 5 is the structural representation of central server in the embodiment of the invention;
Fig. 6 is the structural representation of local server in the embodiment of the invention.
Embodiment
Because at present in the radio data system (audio/video player system), video playback generally adopts monophony (voice-grade channel) to play, and can comprise a plurality of voice-grade channels (multichannel) in the video broadcast signal, generally be to comprise 4 voice-grade channels, at this moment, other voice-grade channels just are in idle state, well do not used, the embodiment of the invention utilizes idle voice-grade channel to realize what video replacing was play just: central server is according to the trigger event that is provided with in the synthetic broadcast items list, in idle voice-grade channel, insert characteristic signal, control the local server in strange land by the characteristic signal that inserts and in the corresponding time, play the replacement video; Local server detects idle channel, when detecting the characteristic signal of insertion, obtains the content-data of replacing video, plays in above-mentioned characteristic signal time corresponding scope.
In the video replacing method that the embodiment of the invention provides, the flow process of the characteristic signal of insertion video replacing comprises the following steps: as shown in Figure 1 on the idle voice-grade channel of central server in video broadcast signal
Step S101: central server is according to the synthetic programme of trigger event that is used to start video replacing of literal programme and setting.As shown in Figure 2, comprise following concrete steps:
S101a: the video content corresponding character programme that layout is to be broadcasted.
The video content editing corresponding character programme of Bo Chuing as required comes broadcast time of control of video content.
S101b: the trigger event that is provided for starting video replacing.
Some trigger event and each trigger event time corresponding points that are used to start video replacing are set, control the time of origin of each trigger event by the time point that is provided with.By trigger event is set, make central server to insert characteristic signal at trigger event time corresponding point.
S101c: judge whether to synthesize unified broadcast items list.Specifically judge whether to generate according to time sequence broadcast items list according to the trigger event of above-mentioned literal programme and setting.
At each trigger event, judge trigger event time corresponding point respectively, whether the time started or the concluding time of some video contents in the literal programme be if then can synthesize unified broadcast items list; Otherwise think the time of occurrence conflict, can not synthesize unified broadcast items list.
For example:, then think and to synthesize the broadcast items list when the time point of trigger event is certain interlude point of (in time started to the concluding time scope) in certain video content reproduction time scope.Because pairing time of each video content and each trigger event time corresponding can not well be connected in literal programme this moment.
If can synthesize the broadcast items list, execution in step S101d then; If can not synthesize the broadcast items list, the programme of layout literal and/or S101b reset trigger event again to return step S101a.
S101d: synthetic broadcast items list.
To work as each video content and each trigger event in the literal programme, according to time corresponding point separately, layout generates unified broadcast items list together in chronological order.
Step S102: synthetic broadcast items list is detected.
Broadcast according to synthetic broadcast items list control of video content in the process of displaying video content, detects the broadcast items list.
For example: can detect or detect in real time according to the detection frequency of setting.
When detecting trigger event, execution in step S103; Otherwise returning continuation execution in step S102 detects the broadcast items list.
Step S103: in idle voice-grade channel, insert characteristic signal?
Whether the demand operating personnel insert characteristic signal in idle voice-grade channel when detecting trigger event, and carry out subsequent operation according to operating personnel's instruction.When selecting to be, execution in step S104 then; When selecting not, then return step S102 and continue to detect broadcast items list subsequent content.
Especially, execution in step S103 not, and when being arranged to detect trigger event, directly execution in step S104 obtains characteristic signal and inserts idle voice-grade channel, and without the demand operating personnel.
Step S104: the characteristic signal that obtains storage.
Characteristic signal can comprise following several: comprise the beginning characteristic quantity and finish the characteristic signal of characteristic quantity, only comprise the characteristic signal of replacing the time span characteristic quantity, comprise the absolute time characteristic quantity and replace the characteristic signal etc. of time span characteristic quantity.
When needs insert characteristic signal, insert rule according to the characteristic signal of setting, obtain the characteristic of correspondence signal.For example:, then select to obtain the characteristic signal of forming by beginning characteristic quantity and end characteristic quantity if setting is to control the time started and the concluding time of replacing video; If setting is to control the time started of replacement video and replace duration, then the characteristic signal of absolute time and replacement time span characteristic quantity etc. is obtained in selection.
Especially, characteristic signal can be stored in the characteristic signal buffer, when needs, obtains needed characteristic signal from the characteristic signal buffer.
Step S105: after the characteristic signal that gets access to encoded, be inserted in the idle voice-grade channel of video broadcast signal to be sent, obtain the synthetic video broadcast singal.
According to the time point of detected trigger event, determine in the pairing broadcast items list in the video content and the corresponding Frame of above-mentioned trigger event time point.
After the characteristic signal that gets access to encoded, be inserted into sequential position corresponding in the idle voice-grade channel with the Frame of being determined.
Can utilize video card that the characteristic signal that gets access to is encoded, and then be inserted in the idle voice-grade channel of appointment, obtain the synthetic video broadcast singal.
Specifically can be by the time in the synchronous whole video Play System of clock sync signal, the time control that makes video content broadcast employed voice-grade channel and idle voice-grade channel can keep synchronously, thereby make the video content broadcast of identical time point and trigger event take place to keep synchronous, send control command at same sequential point, thereby guarantee timely, the accuracy of replacement.
Step S106: central server sends the above-mentioned synthetic video broadcast singal that obtains to local server.
Central server is according to the broadcast items list, according to the broadcast of the broadcast policy control video content of setting, and sends the synthetic video broadcast singal of the video content correspondence of being broadcasted with the form of broadcasting to local server.
Wherein, comprise that at least vision signal, video content broadcast signal in the employed voice-grade channel and the characteristic signal in the idle voice-grade channel.
Local server insert and play according to the characteristic signal that comprises in the synthetic video broadcast singal replace video flow process as shown in Figure 3, comprise the following steps:
Step S201: local server receives the synthetic video broadcast singal that central server sends over.
Step S202: local server detects idle voice-grade channel.
When local server is relayed video content according to the synthetic video broadcast singal that receives, can detect idle voice-grade channel.
For example: can detect or detect in real time according to the detection frequency of setting.
Step S203: detect characteristic signal?
If, execution in step S204 then; If not, then returning step S202 continues idle voice-grade channel is detected.
Step S204: resolve characteristic signal time corresponding section, can play the time period of replacing video thereby determine.
Characteristic signal is resolved the characteristic quantity that obtains comprising,, obtain characteristic signal time corresponding section characteristic quantity decoding reduction.Characteristic signal is resolved and the time period is determined, specifically can comprise following three kinds of situations:
(1) when characteristic signal be when comprising the beginning characteristic quantity and finishing the characteristic signal of characteristic quantity, be reduced into time started and concluding time by decoding, and determine that time period between this time started and concluding time is for playing the time period of replacing video.
At this moment, local server must be resolved to the beginning characteristic quantity and finish the characteristic quantity ability determining time, promptly begins characteristic quantity and finishes characteristic quantity appearance in pairs.
And this kind situation generally can be preset a start-up time, after the time started of determining, the start-up time through default, then begins to replace; Determine after the concluding time, relay the video content that central server provides through switching default start-up time to get back to.
(2) characteristic signal only comprises replacement time span characteristic quantity, is reduced into the replacement time span by decoding, and definite time point from this characteristic signal place, and length is that a period of time of above-mentioned replacement time span is to play the time period of replacing video.
For example: the time point at characteristic signal place is 8:00, then begins to replace from 8:00.
(3) characteristic signal comprises absolute time and replaces the time span characteristic quantity, be reduced into absolute time started point and replace time span by decoding, and determine that from this absolute time started length is that a period of time of above-mentioned replacement time span is to play the time period of replacing video.
For example: the time point at characteristic signal place is 8:00, decoding to a time started point position 9:00, then after one hour, begin again to replace.
Still realizing synchronously of above-mentioned time by above-mentioned synchronizing signal all the time.
Generally in a video replacing system, only adopt one of above-mentioned three kinds of modes to resolve characteristic signal and determine and to play the time period of replacing video, concrete employing is above-mentioned which kind of mode, make an appointment, it is pre-set specifically to be that the signal that adopted when inserting characteristic signal inserts rule.
Step S205: replace the video content in this time period?
Whether the demand operating personnel replace the interior video content of time period of above-mentioned the play replacement video of determining, and carry out subsequent operation according to operating personnel's instruction.When selecting to be, execution in step S206 then; When selecting not, then return step S202 and continue idle voice-grade channel is detected.
Especially, execution in step S205 not, and be arranged to detect characteristic signal, parse the time corresponding section after, directly execution in step S206 carries out the replacement of video content, and without the demand operating personnel.
Step S206: obtain the content-data of replacing video.
Replace the video content that video can comprise advertisement, weather forecast or relate to local custom etc.,, behind the replacement video of determining to need to insert, obtain the content-data of replacing video according to the concrete time period or according to operating personnel's instruction.
Determining the replacement video that needs insert according to the concrete time period, generally is that good by appointment rule determines that for example: every day, 7:30 replaced with weather forecast; 9:00 replaces with the video content that relates to local customs custom etc.
Step S207: in the time period that can play the replacement video, play and obtain the content-data of replacing video.
Promptly can play the content-data of playing the replacement video that obtains in the time period of replacing video, replace the video content of this period of central server transmission.
Step S208: after the video playback in the time period of broadcast replacement video is finished, continue the video content of the next period of broadcast central server transmission.Promptly return the video broadcast signal that step S201 continues to receive central server broadcasting.
The broadcast of replacing video according to the concluding time end of end characteristic quantity correspondence is switched, and returns the video content of the next period of continuing the transmission of relay central server; Maybe when the replacement time span of setting expires, switch, return the video content of the next period of continuing the transmission of relay central server.
Can make up a kind of audio/video player system according to said method of the present invention, as shown in Figure 4, comprise: central server 10 and local server 20.
Trigger event detection module 101 is used for synthetic broadcast items list is detected.
Characteristic signal insert module 102, when detect setting be used to start the trigger event of video replacing the time, on the idle voice-grade channel of video broadcast signal to be sent, insert characteristic signal according to described trigger event, obtain the synthetic video broadcast singal.
Preferable, characteristic signal insert module 102 further can comprise: acquiring unit 1021, determining unit 1022 and insertion unit 1023.
Acquiring unit 1021 is used for inserting rule according to the characteristic signal of setting, and obtains the characteristic signal of storage.
Determining unit 1022 is used for according to trigger event time corresponding point, determines the Frame corresponding with described time point in the voice-grade channel that video broadcast signal to be sent uses.
Literal programme editor module 103 is used for layout video content corresponding character programme to be broadcasted.
Trigger event is provided with editor module 104, is used to be provided for starting the trigger event and the time corresponding point thereof of video replacing.
The characteristic signal buffer can be set in the above-mentioned central server 10 be used for the cache feature signal.
Time period determination module 203 is used for determining to play the time period of replacing video according to detection module 202 detected characteristic signals.
Preferable, time period determination module 203 further can comprise: resolution unit 2031 and time period determining unit 2032.
Time period determining unit 2032, be used for if the characteristic quantity that resolution unit 2031 parses comprises the beginning characteristic quantity and finishes characteristic quantity, then be reduced into time started and concluding time, and determine that the time period between this time started and concluding time is to play the time period of replacing video by decoding; Or if the characteristic quantity that resolution unit 2031 parses only comprises replacement time span characteristic quantity, be reduced into the replacement time span by decoding, and definite time point from above-mentioned characteristic signal place, length is to play the time period of replacing video for a period of time of this replacement time span; Or if the characteristic quantity that resolution unit 2031 parses comprises absolute time characteristic quantity and replacement time span characteristic quantity, be reduced into the absolute time started and replace time span by decoding, and determine that from the absolute time started length is to play the time period of replacing video for a period of time of this replacement time span.
Preferable, video replacing module 204 further can comprise: acquiring unit 2041, broadcast unit 2042 and switch unit 2043.
Acquiring unit 2041 is used to obtain the content-data of replacing video, replaces the video content that central server 10 transmits.
In the above-mentioned local server 20 the replacement video memory can be set, be used for the content-data of the video that buffer memory need replace.
Above-mentioned video replacing method, audio/video player system and device that the embodiment of the invention provides are accurately controlled the trigger point by trigger event is set; And make full use of idle voice-grade channel, in conjunction with clock sync signal, insert characteristic signal in the trigger point, by inserting the time span that video is replaced in characteristic signal control, after local server detects characteristic signal, replace automatically, realized automatic, the replacement in real time of strange land video.
And it only inserts characteristic signal by being arranged on the idle voice-grade channel, can realize controlling automatically the strange land video replacing, need not change existing audio/video player system framework, and operation and control are simple, effective.
By the time of the synchronous whole system of clock sync signal, make that the signal on each voice-grade channel can trigger under same sequencing control, its control precision can be accurate to the Frame of trigger point correspondence, control that promptly can the achieve frame level; And the length by control concluding time or control replacement time can guarantee in time, switch back to accurately the broadcast of the video content that central server provides; Its control precision height, and can guarantee that the strange land video replacing in time, accurately, has improved the performance of whole video Play System.
And by controlling automatically and agreement replacement content, can effectively avoid replacing mistake, guarantee to replace the accurate, legal, effective of content, improve the fail safe of whole replacement process and the controllability of replacement content.
The above; only be the preferable embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily, replace or be applied to other similar devices, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (14)
1, a kind of video replacing method is characterized in that, comprising:
Central server detects synthetic broadcast items list; When detect setting be used to start the trigger event of video replacing the time, on the idle voice-grade channel of video broadcast signal to be sent, insert characteristic signal according to described trigger event, obtain the synthetic video broadcast singal;
Local server receives the synthetic video broadcast singal that described central server sends, and described idle voice-grade channel is detected; When detecting described characteristic signal, determine to play the time period of replacing video according to described characteristic signal, and in the described time period, play the content-data of the replacement video that gets access to.
2, the method for claim 1 is characterized in that, describedly inserts characteristic signal according to described trigger event on the idle voice-grade channel of video broadcast signal to be sent, specifically comprises:
Insert rule according to the characteristic signal of setting, obtain the characteristic signal of storage;
According to described trigger event time corresponding point, determine the Frame corresponding in the voice-grade channel that described video broadcast signal to be sent uses with described time point;
Be inserted into sequential position corresponding in the described idle voice-grade channel after the characteristic signal that gets access to encoded with described Frame.
3, method as claimed in claim 2 is characterized in that, described characteristic signal comprises the beginning characteristic quantity and finishes characteristic quantity; Or only comprise and replace the time span characteristic quantity; Or comprise the absolute time characteristic quantity and replace the time span characteristic quantity.
4, method as claimed in claim 3 is characterized in that, the described time period of determining to play the replacement video according to described characteristic signal, specifically comprises:
Described characteristic signal is resolved, obtain the characteristic quantity that is comprised;
If described characteristic quantity is for the beginning characteristic quantity and finish characteristic quantity, then is reduced into time started and concluding time, and determines that the time period between described time started and concluding time is described the broadcast time period of replacing video by decoding; Or
If described characteristic quantity is only for replacing the time span characteristic quantity, be reduced into the replacement time span by decoding, and definite time point from described characteristic signal place, length is to be described the broadcast time period of replacing video a period of time of described replacement time span; Or
If described characteristic quantity comprises absolute time and replaces the time span characteristic quantity, be reduced into the absolute time started and replace time span by decoding, and determine that from the described absolute time started length is to be described the broadcast time period of replacing video a period of time of described replacement time span.
5, method as claimed in claim 4 is characterized in that, the described content-data of playing the replacement video that gets access in the described time period specifically comprises
Obtain the content-data of described replacement video, replace the video content that described central server transmits;
At the described content-data of playing described replacement video in the time period of replacing video of playing;
Switch when described concluding time or described replacement time span expire when arriving, return and continue to play the video content that described central server transmits.
As the arbitrary described method of claim 1-5, it is characterized in that 6, described centre server also comprises before synthetic broadcast items list is detected:
The video content corresponding character programme that layout is to be broadcasted; And
Be provided for starting the trigger event and the time corresponding point thereof of video replacing;
When described trigger event time corresponding point during for time started of certain video content in the described literal programme or concluding time, with each video content in the described literal programme and the synthetic in chronological order described broadcast items list of described trigger event.
7, a kind of audio/video player system is characterized in that, comprising:
Central server is used for synthetic broadcast items list is detected; When detect setting be used to start the trigger event of video replacing the time, on the idle voice-grade channel of video broadcast signal to be sent, insert characteristic signal according to described trigger event, obtain the synthetic video broadcast singal;
Local server is used to receive the synthetic video broadcast singal that described central server sends, and described idle voice-grade channel is detected; When detecting described characteristic signal, determine to play the time period of replacing video according to described characteristic signal, and in the described time period, play the content-data of the replacement video that gets access to.
8, system as claimed in claim 7 is characterized in that, described centre server also is used for:
The video content corresponding character programme that layout is to be broadcasted; And
Be provided for starting the trigger event and the time corresponding point thereof of video replacing;
When described trigger event time corresponding point during for time started of certain video content in the described literal programme or concluding time, with each video content in the described literal programme and the synthetic in chronological order described broadcast items list of described trigger event.
9, a kind of central server is characterized in that, comprising:
The trigger event detection module is used for synthetic broadcast items list is detected;
The characteristic signal insert module, when detect setting be used to start the trigger event of video replacing the time, on the idle voice-grade channel of video broadcast signal to be sent, insert characteristic signal according to described trigger event, obtain the synthetic video broadcast singal.
10, central server as claimed in claim 9 is characterized in that, described characteristic signal insert module comprises:
Acquiring unit is used for inserting rule according to the characteristic signal of setting, and obtains the characteristic signal of storage;
Determining unit is used for according to described trigger event time corresponding point, determines the Frame corresponding with described time point in the voice-grade channel that video broadcast signal to be sent uses;
Insert the unit, be inserted into the described idle voice-grade channel sequential position corresponding after being used for the characteristic signal that gets access to encoded, obtain the synthetic video broadcast singal with described Frame.
11, as claim 9 or 10 described central servers, it is characterized in that, also comprise:;
Literal programme editor module is used for layout video content corresponding character programme to be broadcasted;
Trigger event is provided with editor module, is used to be provided for starting the trigger event and the time corresponding point thereof of video replacing;
The programme synthesis module, be used for when described trigger event time corresponding point during for time started of described certain video content of literal programme or concluding time, each video content in the described literal programme and the synthetic in chronological order described broadcast items list of described trigger event.
12, a kind of local server is characterized in that, comprising:
Receiver module is used to receive the synthetic video broadcast singal that central server sends;
Detection module is used for the idle voice-grade channel of described synthetic video broadcast singal is detected;
The time period determination module is used for determining to play the time period of replacing video according to the detected characteristic signal of described detection module;
The video replacing module is used in the time period that described time period determination module is determined playing the content-data of the replacement video that gets access to.
13, local server as claimed in claim 12 is characterized in that, the time period determination module comprises:
Resolution unit is used for described characteristic signal is resolved, and obtains the characteristic quantity that is comprised;
The time period determining unit, be used for if described characteristic quantity comprises the beginning characteristic quantity and finishes characteristic quantity, then be reduced into time started and concluding time, and determine that the time period between described time started and concluding time is described the broadcast time period of replacing video by decoding; Or if described characteristic quantity only comprises replacement time span characteristic quantity, be reduced into the replacement time span by decoding, and definite time point from described characteristic signal place, length is to be described the broadcast time period of replacing video a period of time of described replacement time span; Or if described characteristic quantity comprises absolute time characteristic quantity and replacement time span characteristic quantity, be reduced into the absolute time started and replace time span by decoding, and determine that from the described absolute time started length is to be described the broadcast time period of replacing video a period of time of described replacement time span.
14, local server as claimed in claim 13 is characterized in that, described video replacing module comprises:
Acquiring unit is used to obtain the content-data of described replacement video, replaces the video content that described central server transmits;
Broadcast unit is used at the described content-data of playing described replacement video in the time period of replacing video of playing;
Switch unit is used for switching when described concluding time or described replacement time span expire when arriving, and returns and continues to play the video content that described central server transmits.
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| CN113179442A (en) * | 2021-04-20 | 2021-07-27 | 浙江工业大学 | Voice recognition-based audio stream replacement method in video |
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2008
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| CN103813186A (en) * | 2012-11-09 | 2014-05-21 | 财团法人资讯工业策进会 | Scene switching and broadcasting system and method applied to multiple media channels |
| CN103813186B (en) * | 2012-11-09 | 2018-05-04 | 财团法人资讯工业策进会 | Scene switching and broadcasting system and method applied to multiple media channels |
| CN110099288A (en) * | 2014-03-24 | 2019-08-06 | 高通股份有限公司 | Handle continuous multicycle content |
| CN110099288B (en) * | 2014-03-24 | 2021-12-03 | 高通股份有限公司 | Method and device for sending media data |
| CN104581329A (en) * | 2014-12-30 | 2015-04-29 | 北京东方艾迪普科技发展有限公司 | Method and device for transmitting and receiving image-text broadcasting instruction |
| CN106331741A (en) * | 2016-08-31 | 2017-01-11 | 浙江华治数聚科技股份有限公司 | Television and broadcast media audio and video data compression method |
| CN106331741B (en) * | 2016-08-31 | 2019-03-08 | 徐州视达坦诚文化发展有限公司 | A kind of compression method of television broadcast media audio, video data |
| CN112019923A (en) * | 2020-09-02 | 2020-12-01 | 深圳爱卓软科技有限公司 | Video cutting processing method |
| CN113179442A (en) * | 2021-04-20 | 2021-07-27 | 浙江工业大学 | Voice recognition-based audio stream replacement method in video |
| CN113179442B (en) * | 2021-04-20 | 2022-04-29 | 浙江工业大学 | Voice recognition-based audio stream replacement method in video |
| CN113727140A (en) * | 2021-08-31 | 2021-11-30 | 维沃移动通信（杭州）有限公司 | Audio and video processing method and device and electronic equipment |
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