CN103546828A - Method and device for generating program preview - Google Patents
Method and device for generating program preview Download PDFInfo
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- CN103546828A CN103546828A CN201210245319.1A CN201210245319A CN103546828A CN 103546828 A CN103546828 A CN 103546828A CN 201210245319 A CN201210245319 A CN 201210245319A CN 103546828 A CN103546828 A CN 103546828A
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Abstract
The invention relates to a method and a device for generating program preview. The method includes setting a time interval among preview fragments according to a preset quantity of the preview fragments required for generating the program preview and a preset total duration of original program; extracting the preset quantity of preview fragments from the original program according to the time interval; combining the preset quantity of extracted preview fragments with one another to generate the program preview. The method and the device have the advantage that complete program information can be extracted, so that the program preview is coherent and integral to a certain extent in the aspect of plot.
Description
Technical field
The present invention relates to field of multimedia communication, relate in particular to a kind of generation method and apparatus of previewing programs.
Background technology
Along with the development of multimedia technology, various programs become an important part for people's life.Program comprises traditional TV programme of utilizing Set Top Box to watch, and the movie program of movie theatre, also comprises the various programs such as the network TV program that can watch by fixed terminals such as the mobile terminals such as mobile phone or computers and network movie program.
Yet for these programs, beholder's great majority all wish to browse in advance the content of this program before watching, like this can be so that they make the selection of whether watching this program, or can understand in advance the content of this program.A kind of existing technical scheme is to provide and adopts trailer to carry out previewing program.But this trailer just selects taker to think from whole program, may be crucial and excellent fragment, then as trailer, play.Therefore this trailer lacks the synopsis of complete programs, is difficult to form the complete information of whole program, and lacks continuity and integrality.
Summary of the invention
The invention provides a kind of method and apparatus of previewing programs, so that the trailer providing in prior art to be provided, do not there is complete programme content summary, and lack the problem of continuity and integrality.
Above-mentioned in order to realize, the invention provides a kind of generation method of previewing programs, the method comprises:
According to the quantity of the required preview fragment of the generation previewing programs setting in advance and total duration of original program, be set the time interval between described preview fragment;
According to the described time interval, the described preview fragment of the quantity of the preview fragment setting in advance described in extracting from described original program;
Described preview fragment combination by the quantity of the preview fragment setting in advance described in extracting, generates described previewing programs.
The present invention also provides a kind of generating apparatus of previewing programs, and this device comprises:
Setting unit, for according to the required quantity of preview fragment and the total duration of original program of generation previewing programs setting in advance, arranges the time interval between described preview fragment;
Extraction unit, for according to the described time interval, the described preview fragment of the quantity of the preview fragment setting in advance described in extracting from described original program;
Generation unit, for by the described preview fragment combination of the quantity of the preview fragment setting in advance described in extracting, generates described previewing programs.
In view of technique scheme, the present invention is out combined into previewing programs according to the preview fragment of time interval extraction certain time length from original program, complete programme information has been won in realization, thereby makes this previewing programs in plot, have certain continuity and integrality.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present application, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiment of the application, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the generation method flow diagram of embodiment of the present invention previewing programs.
Fig. 2 is that the present invention extracts the schematic diagram that preview fragment generates previewing programs on time shaft.
Fig. 3 is the structural representation of the generating apparatus of previewing programs of the present invention.
Embodiment
Referring to the drawings and specific embodiments, the present invention is further illustrated.
Fig. 1 is the generation method flow diagram of embodiment of the present invention previewing programs.As shown in the figure, the embodiment of the present invention can comprise the following steps:
Should be understood that, each program is formed at time shaft according to sequential by Audio and Video, program each time engrave by specific picture frame and audio frequency and form.Pre-set the quantity that expectation generates the preview fragment of the required use of previewing programs, 12 fragments for example, total duration of original program is 120 minutes (time shaft is from 00:00 to 120:00), and therefore according to these two parameters, can calculate the time interval obtaining between preview fragment is total duration 120/ number of fragments 12=10 minute.
Except the above-mentioned total duration that utilizes quantity and the original program of preview fragment, calculate outside the time interval that obtains equal length between preview fragment, the time interval between described preview fragment can also change, for example from initial time, extract fragment, first and second fragments are set, the time interval between them is 15 minutes, and the time interval between the 11 and 12 fragments is 5 minutes, and the time interval between other fragments is all 10 minutes.The time interval of this unequal length can be set according to practical application.
The duration for example 60 seconds that sets in advance the quantity that generates the required preview fragment of previewing programs and can be the previewing programs generating according to hope, the duration of every section of preview fragment for example arranges for 5 seconds.The quantity of preview fragment, arranging of the duration of preview fragment and the duration of previewing programs can arrange neatly according to demand, for example may wish to extract a programme content at centre and the latter end of program more, for example 12 sections of the quantity of preview fragment can be set so, then be arranged on the 6th section of fragment and the 12nd section of fragment, the duration of the preview fragment of extracting is for example 8 seconds and 10 seconds, and the duration of other fragments is still 5 seconds, thereby the duration of previewing programs is changed to 5 * 10+10+8=68 second, also duration that can previewing programs be set as 60 seconds constant, by the corresponding shortening of the duration of other preview fragments.
Particularly, in this step, from the initial time of original program for example time point 00:00,10 minutes per time intervals, from original program, extract one section of preview fragment, the time span of this preview fragment is the preview fragment duration that sets in advance 5 seconds for example, so program of 120 minutes, at time point 00:00, start to extract one section of preview fragment of 5 seconds (extracting first preview fragment can also be at 00:10 time point), be about to picture frame and the audio frequency of 0-5 in second during this period of time and all extract.The 2nd preview fragment extracted at interval for 10 minutes, at time point, within 10 minutes, locate, extract the preview fragment of 5 seconds, then at time point, within 20 minutes, locate to extract the 3rd the preview fragment of 5 seconds, repeat successively said process according to 10 minutes time intervals, within the end 110 minutes, locate to extract the 12nd the preview fragment (extracting the 12nd preview fragment can also be at 120:00 time point) of 5 seconds.Thus, extracted and formed the required preview fragment of previewing programs, as shown in Figure 2, for extract preview fragment in the present invention on time shaft, generated the schematic diagram of previewing programs.
In this step, the duration of the preview fragment of extracting is within 5 seconds, to extract according to the preview fragment duration setting in advance, at this, the duration of preview fragment can extract according to the different moment duration of different length, for example, when the 11st of extraction and the 12nd preview fragment, the long a little point of preview fragment length now extracting can be set, for example 8 seconds, in the place of program climax, can extract a programme information like this, so that the previewing programs generating has more complete information more.
This step describe according to the described time interval, the described preview fragment of the quantity of the preview fragment setting in advance described in extracting from described original program be constant duration from original program, extract preview fragment, as time interval described in step 11 except being set to equal length, can also be set to not isometric, therefore, another mode of this step can be according to the not isometric time interval, extracts preview fragment from original program.
Particularly, in this step 12 preview fragments that extract are combined, form previewing programs.In this process, the picture frame extracting and audio frame can not processed, be directly spliced to form previewing programs.Previewing programs is exactly original program have been carried out choosing some fragments of the original program that has concentrated certain time length, to transmit the important information of original program the inside to beholder, make beholder watch rear acquisition comprehensively to understand and produce thus the interest of watching original program.
Therefore, the present invention is out combined into previewing programs by 12 preview fragments of the extraction certain time length of constant duration from program, realizes and has won complete programme information, thereby make this previewing programs in plot, have certain continuity and integrality.
In view of embodiment above, total duration of program is not removed the duration of head and run-out, therefore, in 12 preview fragments extracting, likely has leader and sheet portion.In order to make previewing programs more have the specific aim to programme content, the present invention provides an embodiment in addition.
After total duration removal head of program and the duration of run-out, obtain in the present embodiment the duration of programme content, according to programme content, extract preview fragment.Therefore, interval computing time in step 11, specifically comprise in the present embodiment: the duration of removing head data and run-out data according to total duration of described original program, obtain the duration of the programme content of original program, for example the total duration of original program is 120 minutes, the duration of head and run-out data is respectively 5 minutes, and deducting the duration that has obtained the programme content of original program after these two durations is 110 minutes, programme content on time shaft from 05:00 to 115:00; According to the quantity of the described preview fragment setting in advance 11 fragments for example, and the duration of described programme content, the time interval between described preview fragment calculated.The time interval that therefore can get between preview fragment according to these two parameters is total duration 110/ number of fragments 11=10 minute.
Extraction preview fragment in step 12, is specially in the present embodiment: from the initial time of the programme content of described original program, every the described time interval, extract the preview fragment of the quantity of described preview fragment.
From original program initial for example time point 00:00, the initial time of removing the programme content after 5 minutes head be the 5th minute be that 05:00 starts, 10 minutes per time intervals, from programme content, extract one section of preview fragment, the time span of this preview fragment is the unit preview fragment duration that sets in advance 5 seconds for example, so program of 120 minutes, at time point, within 05:00 minute, locate to start to extract one section of preview fragment of 5 seconds, be about to picture frame and the audio frequency of 0-5 in second during this period of time and all extract.The 2nd preview fragment extracted at interval for 10 minutes, at time point 15:00 minute, locate, extract the preview fragment of 5 seconds, then at time point 25:00 minute, locate to extract the 3rd the preview fragment of 5 seconds, repeat successively said process according to 10 minutes time intervals, within the end 105 minutes, locate to extract the 11st the preview fragment of 5 seconds.Thus, extracted and formed the required preview fragment of previewing programs.Similarly, except constant duration mode is extracted preview fragment, can also adopt unequal interval mode to extract preview fragment.
In the present embodiment, the concrete mode that generates previewing programs is constant, with step 13.
Therefore, by this removal head and run-out, by concrete programme content, carried out the generation of previewing programs, can be so that the previewing programs substantial specific aim of tool more form more complete programme content summary, more coherent and complete in plot.
In two embodiment of foregoing description, finally the preview fragment extracting is combined, form previewing programs, in this process, the picture frame extracting and audio frame can not processed, be directly spliced to form previewing programs.Can also, according to various demands, carry out the generation of previewing programs.For example as required, can create the previewing programs of different definition or different-format.
According to the requirement to previewing programs definition, for example without high definition, show, can be by the preview fragment of 5 seconds extracting, in sequential, extract the picture frame of some, and extract the audio frequency in these sequential, and then on time shaft, be combined into previewing programs, reduce like this picture frame and reduced definition, but can be so that the size of previewing programs can diminish, thereby be convenient to storage etc.For example, while storing a certain amount of previewing programs in Set Top Box, can make in this way, guarantee to store a large amount of previewing programs in Set Top Box.
Same except the requirement of this definition, also can also carry out the conversion of form.Described preview fragment is carried out to format conversion, be combined into described previewing programs.The video format of video display class program comprises MKV, RMVB, MPEG, DAT, MOV, MP4, and DVDRip, RMVB, MKV etc., after extracting preview fragment, can change its video format.
Utilize the generation method of this previewing programs, when concrete application, can be for example on Web TV, film, on the displayed page of associated television, film, show the link of quick previewing programs, when user clicks this link, the generation method of calling previewing programs of the present invention, is shown to user by the previewing programs of generation and watches, and this generation can be that to generate in real time can be to be also stored on server after generating in advance.In generative process in real time, after user clicks on links, first server need to obtain the relevant length of a film of this program, run-out and head length of a film, and the various parameters of preview number of fragments of setting in advance of server-side management personnel, preview fragment duration etc., and these parameters are stored in before being in the database of server.When concrete application, in the TV programme that this previewing programs is equally applicable to provide on the television set with Set Top Box, owing to can storing a large amount of programme informations in Set Top Box, therefore when user wants to watch concrete program, can first click the option of quick previewing programs, the generation method of calling previewing programs of the present invention, is shown to user by the previewing programs of generation and watches, and this generation can be that to generate in real time can be to be also stored in Set Top Box after generating in advance equally.In generative process in real time, with above-described, first Set Top Box need to obtain the relevant length of a film of this program, run-out and head length of a film, and the various parameters of the preview number of fragments setting in advance, preview fragment duration etc., and these parameters can be kept in Set Top Box, and concrete setting also can operate realization by remote controller by user.Just as described above, pre-stored previewing programs in Set Top Box, in order to make memory capacity point, can take the previewing programs of lower resolution to preserve.Therefore, previewing programs can be generated by server, and server is sent to terminal according to the instruction of user's input by the described previewing programs generating; Or terminal generates described previewing programs according to the generation instruction of user's input in this locality.Above-mentioned various application are only for giving an example, be not limited to, described Set Top Box can be also other-end, the suchlike terminals with visual function such as intelligent TV set, panel computer or mobile phone, the inventive method goes for traditional TV or movie program carries out preview, or is applicable to the rapid preview of the various types of programs on network.
Correspondingly, the structural representation of the generating apparatus that Fig. 3 is previewing programs of the present invention, as shown in Figure 3, this device comprises: setting unit 31, extraction unit 32 and generation unit 33.Wherein,
Setting unit 31, for according to the required quantity of preview fragment and the total duration of original program of generation previewing programs setting in advance, arranges the time interval between described preview fragment;
Wherein, described setting unit 31 is further used for:
According to total duration of described original program, remove the duration of head data and run-out data, obtain the duration of the programme content of original program;
According to the quantity of the described preview fragment setting in advance, and the duration of described programme content, the time interval between described preview fragment is set.
Described extraction unit 32 is further used for:
From the initial time of the programme content of described original program, every the described time interval, extract the preview fragment of the quantity of described preview fragment.
In view of setting unit above and the function of extraction unit, by this removal head and run-out, by concrete programme content, carried out the generation of previewing programs, can be so that the previewing programs substantial specific aim of tool more forms more complete programme content summary.
According to various demands, carry out the generation of previewing programs.For example as required, can create the previewing programs of different definition or different-format.Generation unit can have following function and realizes.
Described generation unit 33 is further used for: the picture frame that extracts some from the preview fragment of described preview fragment duration; The picture frame of described some is combined into described previewing programs.
Described generation unit 33 is further used for: described preview fragment is carried out to format conversion, be combined into described previewing programs.
The present invention is out combined into previewing programs by extraction some preview fragments at interval certain hour interval from program, realizes and has won complete programme information, thereby make this previewing programs in plot, have certain continuity and integrality.
Those of ordinary skills should further recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software is clearly described, composition and the step of each example described according to function in the above description in general manner.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can specifically should be used for realizing described function with distinct methods to each, but this realization should not thought and exceeds the application's scope.
The software module that the method for describing in conjunction with embodiment disclosed herein or the step of algorithm can use hardware, processor to carry out, or the combination of the two is implemented.Software module can be placed in the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
Above-described embodiment; the application's object, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the application's embodiment; and be not used in the protection range that limits the application; all within the application's spirit and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in the application's protection range.
Claims (10)
1. a generation method for previewing programs, is characterized in that, described method comprises:
According to the quantity of the required preview fragment of the generation previewing programs setting in advance and total duration of original program, be set the time interval between described preview fragment;
According to the described time interval, the described preview fragment of the quantity of the preview fragment setting in advance described in extracting from described original program;
Described preview fragment combination by the quantity of the preview fragment setting in advance described in extracting, generates described previewing programs.
2. the generation method of previewing programs as claimed in claim 1, is characterized in that, the required quantity of preview fragment and the total duration of original program of generation previewing programs that described basis sets in advance, arranges the time interval between described preview fragment, specifically comprises:
According to total duration of described original program, remove the duration of head data and run-out data, obtain the duration of the programme content of original program;
According to the quantity of the described preview fragment setting in advance, and the duration of described programme content, the time interval between described preview fragment is set.
3. the generation method of previewing programs as claimed in claim 2, is characterized in that, described according to the described time interval, and the described preview fragment of the quantity of the preview fragment setting in advance described in extracting from described original program, specifically comprises:
From the initial time of the programme content of described original program, every the described time interval, extract the preview fragment of the quantity of described preview fragment.
4. the generation method of the previewing programs as described in as arbitrary in claims 1 to 3, is characterized in that, described the described preview fragment combination of the quantity of the described preview fragment extracting is generated to described previewing programs, specifically comprises:
From the preview fragment of described preview fragment duration, extract the picture frame of some;
The picture frame of described some is combined into described previewing programs.
5. the generation method of the previewing programs as described in as arbitrary in claim 1-3, is characterized in that, described the described preview fragment combination of the quantity of the described preview fragment extracting is generated to described previewing programs, specifically comprises:
Described preview fragment is carried out to format conversion, be combined into described previewing programs.
6. the generation method of the previewing programs as described in as arbitrary in claim 1-3, is characterized in that, described previewing programs is generated by server, and server is sent to terminal according to the instruction of user's input by the described previewing programs generating; Or terminal generates described previewing programs according to the generation instruction of user's input in this locality.
7. a generating apparatus for previewing programs, is characterized in that, described method comprises:
Setting unit, for according to the required quantity of preview fragment and the total duration of original program of generation previewing programs setting in advance, arranges the time interval between described preview fragment;
Extraction unit, for according to the described time interval, the described preview fragment of the quantity of the preview fragment setting in advance described in extracting from described original program;
Generation unit, for by the described preview fragment combination of the quantity of the preview fragment setting in advance described in extracting, generates described previewing programs.
8. the generating apparatus of previewing programs as claimed in claim 7, is characterized in that, described setting unit is further used for:
According to total duration of described original program, remove the duration of head data and run-out data, obtain the duration of the programme content of original program;
According to the quantity of the described preview fragment setting in advance, and the duration of described programme content, the time interval between described preview fragment is set.
9. the generating apparatus of previewing programs as claimed in claim 8, is characterized in that, described extraction unit is further used for:
From the initial time of the programme content of described original program, every the described time interval, extract the preview fragment of the quantity of described preview fragment.
10. the generating apparatus of previewing programs as claimed in claim 7, is characterized in that, described generation unit is further used for:
From the preview fragment of described preview fragment duration, extract the picture frame of some;
The picture frame of described some is combined into described previewing programs; Or
Described generation unit is further used for: described preview fragment is carried out to format conversion, be combined into described previewing programs.
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