CN103248941A - Multi-channel video source synchronous display method and device - Google Patents
Multi-channel video source synchronous display method and device Download PDFInfo
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Abstract
The invention provides a multi-channel video source synchronous display method and device. The method comprises the following steps: receiving video source data transmitted by one or more channels; respectively acquiring actual sizes of the video source data; receiving display commands input by a user, wherein the display command comprises display position (s) or display size (s) of one or more video source data; enabling the actual size of the video source data to be fit with the display size; and realizing picture out picture display of the one or more video source data according to the corresponding display position(s) on a picture. The method and device can flexibly realize the picture out picture display of the multi-channel video sources aiming at different application demands of users.
Description
Technical field
The present invention relates to technical field of video processing, particularly relate to the method that a kind of multi-channel video source shows synchronously, and a kind of multi-channel video source synchronous display device.
Background technology
Along with the develop rapidly of science and technology, amount of information rapidly increases.Information is in modern society, except traditional media such as newpapers and periodicals, broadcasting, and emerging medium such as network, TV is that people obtain one of most important approach of information, in numerous television channels, how to browse channel content sooner, or satisfy and once watch a plurality of channels to become a kind of demand of people.
Show in the time of multi-channel video and usually adopt picture out picture (POP) structure, at present existing picture out picture technology is to utilize digital technology, show two cover or multiple programs at same screen, namely on same screen, a plurality of sub-screens of sizes such as screen is divided into, in different sub-screens, show different video source respectively, with the demand that reaches the fast browsing channel or once watch a plurality of channels.Show schematic diagram with reference to generic array POP shown in Figure 1, as the interval of each passage video, each passage has same video window to background colour usually.In addition, for some POP display application scene, need also under some application conditions to support that POP(POP at random as shown in Figure 2 shows schematic diagram at random) and the POP demonstration schematic diagram of the POP(different size window as shown in Figure 3 of different size window).
In the prior art, for generic array POP structure, software need dispose the size of whole POP display window and the interval of background colour, and the software configuration is simple; Hardware need calculate the distribution of whole passage and the display window size of each passage, and underaction.On the other hand, need set up a kind of hardware structure respectively to as above three kinds of POP structure situation, the software configuration flow in conjunction with different has caused great redundancy in design.
Therefore, the technical problem that those skilled in the art press for solution is: the mechanism that provides a kind of many video source to show synchronously, can when saving software and hardware resources, tackle different application demands flexibly.
Summary of the invention
Technical problem to be solved by this invention provides the method that a kind of multi-channel video source shows synchronously, can tackle different application demands flexibly when saving software and hardware resources.
Accordingly, the present invention also provides a kind of multi-channel video source synchronous display device, in order to guarantee said method application in practice.
In order to address the above problem, the invention discloses the method that a kind of multi-channel video source shows synchronously, comprising:
Receive the video source data of one or more channel transfer;
Obtain the actual size of described video source data respectively;
Receive the idsplay order of user's input, described idsplay order comprises display position and the display size of described one or more video source datas;
The actual size of described video source data is adapted to the size of described display size;
Described one or more video source datas are carried out picture out picture according to the display position of correspondence in a picture show.
Preferably, described method also comprises:
The video source data of one or more channel transfer of described reception is stored in the corresponding channel buffer.
Preferably, described idsplay order also comprises the memory location of video source data, is adapted in described actual size with video source data before the step of size of described display size, also comprises:
Locate the channel buffer of described video source data according to the memory location of described video source data;
In the channel buffer of described video source data, obtain described video source data.
Preferably, described method also comprises:
Receive the update displayed instruction of user's input, described update displayed instruction comprises the display position of video source data, update displayed size and update displayed position;
According to the display position positioning video source data of described video source data, according to update displayed size and the update displayed position of described video source data described video source data display size and display position are upgraded.
Preferentially, corresponding at least one channel buffer of the video source of described each passage of method.
The invention also discloses a kind of multi-channel video source synchronous display apparatus, comprising:
The video source data receiver module is for the video source data that receives one or more channel transfer;
The actual size acquisition module is for the actual size of obtaining described video source data respectively;
The idsplay order receiver module is used for receiving the idsplay order that the user imports, and described idsplay order comprises display position and the display size of described one or more video source datas;
The size adaptation module is for the size that the actual size of described video source data is adapted to described display size;
Display module is used for will described one or more video source datas carrying out the picture out picture demonstration according to the display position of correspondence at a picture.
Preferably, described device also comprises:
The video source data memory module is used for the video source data of one or more channel transfer of described reception is stored in corresponding channel buffer.
Preferably, described idsplay order also comprises the memory location of video source data, and described device also comprises:
The video source data locating module is used for locating the channel buffer of described video source data according to the memory location of described video source data before the actual size with video source data is adapted to the size of described display size;
The video source data read module is used for obtaining described video source data at the channel buffer of described video source data.
Preferably, described device also comprises:
The update instruction receiver module is used for receiving the update displayed instruction of user's input, and described update displayed instruction comprises the display position of video source data, update displayed size and update displayed position;
Update module is used for the display position positioning video source data according to described video source data, according to update displayed size and the update displayed position of described video source data described video source data display size and display position is upgraded.
Preferably, corresponding at least one channel buffer of the video source of described each passage of device.
Compared with prior art, the present invention includes following advantage:
At first, can realize flexibly showing from the picture out picture in multi-channel video source at the different application demand of user in the present invention, under the prerequisite that the user does not overlap the configuration data of each passage video source, can and show the origin coordinates position at the display size that disposes any passage video source arbitrarily, applicable to different POP structures, thus overcome traditional design for array POP, different size window POP and at random different structure POP such as POP adopt different frameworks to cause the problem of data redundancy respectively.
Secondly, the present invention allows dynamically to adjust the video source data on the POP, thereby can realize the displaying of POP more neatly, also further improves the user and experiences.
Again, the mode that POP framework of the present invention adopts a kind of simple software and hardware to realize realizes which type of POP effect (display position shows size) is determined that by software hardware is realized simple.
Description of drawings
Fig. 1 is that generic array POP shows schematic diagram in the synchronous method that shows in a kind of multi-channel video of the present invention source and the device background technology;
Fig. 2 be in the method that shows synchronously of a kind of multi-channel video of the present invention source and the device background technology at random POP show schematic diagram;
Fig. 3 is that the POP of different size window in the synchronous method that shows in a kind of multi-channel video of the present invention source and the device background technology shows schematic diagram;
Fig. 4 is a kind of multi-channel video of the present invention source flow chart of steps of the method embodiment 1 of demonstration synchronously;
Fig. 5 is a kind of multi-channel video of the present invention source flow chart of steps of the method embodiment 2 of demonstration synchronously;
Fig. 6 is a kind of multi-channel video of the present invention source picture out picture generation schematic diagram of the method embodiment 2 of demonstration synchronously;
Fig. 7 is the structural framing figure of a kind of multi-channel video of the present invention source synchronous display device.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
With reference to Fig. 4, show a kind of multi-channel video of the present invention source flow chart of steps of the method embodiment 1 of demonstration synchronously, specifically can may further comprise the steps:
In embodiments of the present invention, provide a kind of picture out picture (POP) display structure, can realize flexibly showing from the picture out picture in multi-channel video source at the different application demand of user.Particularly, the embodiment of the invention proposes a kind of POP framework that software and hardware is realized of being convenient to, under the prerequisite that the user does not overlap the configuration data of each passage video source, can and show the origin coordinates position at the display size that disposes any passage video source arbitrarily, applicable to different POP structures, thus overcome traditional design for array POP, different size window POP and at random different structure POP such as POP adopt different frameworks to cause the problem of data redundancy respectively.
With reference to Fig. 5, show a kind of multi-channel video of the present invention source flow chart of steps of the method embodiment 2 of demonstration synchronously, the method for the embodiment of the invention is formed alternately by software and hardware, specifically can may further comprise the steps:
Particularly, passage is to be input to the middle transmission means equipment general name of final video signal output from vision signal, and in passage, video source is that a frame one frame transmits.
Step 202 is obtained the actual size of described video source data respectively;
In specific implementation, behind the video source data that receives each channel transfer, at first it is decoded, as a kind of preferred exemplary of present embodiment, the parsing that can carry out video source data by Video Decoder can obtain the actual size of video source when resolving.
Video Decoder is that the digital video of having encoded is reduced program or the equipment of decode operation, that just can become the extended formatting file conversion rm or rmvb form such as system the real encoder to be installed, and that just can play rm or rmvb formatted file if the real decoder has been installed.In embodiments of the present invention, described Video Decoder can be VideoDecoder, VideoDecoder is a integrated the most frequently used Voice ﹠ Video decoding and the super decoding bag of player, it is bilingual to comprise Chinese and English, carry four sections of popular players (four sections of popular players are Media Player Classic Homecinema, KMPlayer, BSPlayer Pro, ZOOM Player Premium), can realize all-round audio/video media broadcast.
Step 203 is stored in the video source data of one or more channel transfer of described reception in the corresponding channel buffer;
Particularly, video source data for decoded each passage can store in the corresponding channel buffer, a passage video source data takies a channel buffer space, and each channel buffer has an initial address and length as the corresponding stored position of corresponding video source data.
In specific implementation, be generally two channel buffers of a video source data configuration, do the usefulness of table tennis, when a frame that is used for the store video source data, another is used for reading the frame of video source data, use two channel buffer buffer to make table tennis, can realize the continuous processing of video source data.For example, suppose to have a video source data to be stored among two channel buffer buffer A and the B, first frame of described video source data is put among the A, and second frame is put among the B then, and the 3rd frame is deposited in being put into A so in turn; When depositing second frame, can from A, read away first frame, after B has been put second frame then, can from B, read away second frame, Here it is ping-pong mechanism.
Step 204 receives the idsplay order that the user imports, and described idsplay order comprises display position and the display size of described one or more video source datas;
Be applied to the embodiment of the invention, the user can arrange each video source as required in position and size that picture shows.Particularly, the user can be by the idsplay order in default hardware parameter input interface input video source.During the idsplay order of user input, can to each video source data different idsplay orders be set respectively, also can import an idsplay order that is applicable to all videos source data; The user can specify some or a plurality of video source datas, also can specify to show all videos source data, and the embodiment of the invention need not this to be limited.
Particularly, described idsplay order can also comprise the memory location of video source data.The memory location of described video source data is the address of channel buffer of the described video source data of storage, can obtain video source data in the channel buffer of correspondence according to the address of described channel buffer.
Step 206 is adapted to the actual size of described video source data the size of described display size;
Be applied to the embodiment of the invention, after receiving the idsplay order of user input, obtain the video source of idsplay order correspondence and the actual size of video source, the actual size of described video source is adapted to the size of display size, show at display position.
Step 207 is carried out picture out picture with described one or more video source datas according to the display position of correspondence and is shown in a picture;
Be applied to the embodiment of the invention, described idsplay order can be passed in the scaler (Scaler), Scaler carries out the Scale(convergent-divergent to video source data (video)) equipment, because the signal accuracy of the display size of the output of video may be inconsistent with the precision of the display frame of Video, for example the signal of the DVD of NTSC output is the resolution about 500 lines, if and use HDTV especially projector watch, the highest resolution of present typical LCD projector reaches 1024X768, the display precision of signal accuracy and projector does not just match so, if projector is built-in Scaler chip all, image can show fully.
Scaler is according to the idsplay order of different video source data, obtain the video source data of respective channel, described video source data is filled in the address space of POP frame, when the video source data of all user's appointments all fill finish after, what generate is a whole POP frame, at the described whole POP frame of screen displayed.
Wherein, picture out picture (POP) is to utilize the multichannel Display Technique, shows multiple programs at same screen.Namely outside one key frame, insert one or more sprites through overcompression simultaneously, in order to when appreciating key frame, monitor other channel.
Step 208 receives the update displayed instruction of user's input, and described update displayed instruction comprises the display position of video source data, update displayed size and update displayed position; According to the display position positioning video source data of described video source data, according to update displayed size and the update displayed position of described video source data described video source data display size and display position are upgraded.
In embodiments of the present invention, the user can dynamically adjust display position and the display size of each video source data on the POP.Particularly, after the user imported the update displayed instruction, the video source data according on the picture of described update displayed instruction location upgraded display size and the position of described video source data according to update displayed size and update displayed position.
The POP framework of the embodiment of the invention is at the different application demand, and propose a kind of simple hardware-software partition mechanism (transparent to software, hardware is realized also very simple): software is responsible for disposing the POP size of images, the origin coordinates of each passage and display size; The responsible original image to each passage of hardware amplifies and dwindles, calculate each passage need be on whole POP image the address of padding data, allow software to change display position and the size of each passage dynamically simultaneously, when channel data need upgrade, hardware at first needs to upgrade background colour, after renewal finishes, dynamically adjust according to coordinate and the display size of new video channel.The POP framework of the embodiment of the invention is realized POP function flexibly when reducing data redundancy.
In order to make those skilled in the art can understand the present invention better, be illustrated below by an object lesson:
Generate schematic diagram with reference to picture out picture shown in Figure 6, it is as follows that the POP of the embodiment of the invention generates example:
(1) obtains the video source of 16 passages;
(2) Video decoder hardware module decoded video source, obtain the original actual size of video source data, and with each independently data source deposit separately independently frame buffer(buffering area) in, one frame data stream of coming in is by after the video decoder, can be put into earlier among the MEM, the scaler accelerator can be read away data from this buffer then;
(3) the Scaler hardware module is chosen different passage video source datas according to the demonstration demand of client POP, and according to its actual size, display position and size are integrated into a POP frame with the data of each passage;
(4) Display Engine display module takes out the POP frame, shows at display screen.
Need to prove, for method embodiment, for simple description, so it all is expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not subjected to the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in the specification all belongs to preferred embodiment, and related action and module might not be that the present invention is necessary.
With reference to Fig. 7, show the structural framing figure of a kind of multi-channel video of the present invention source synchronous display apparatus, specifically comprise with lower module:
Video source data receiver module 301 is for the video source data that receives one or more channel transfer;
Actual size acquisition module 302 is for the actual size of obtaining described video source data respectively;
Video source data memory module 303 is used for the video source data of one or more channel transfer of described reception is stored in corresponding channel buffer.
Idsplay order receiver module 304 is used for receiving the idsplay order that the user imports, and described idsplay order comprises display position and the display size of described one or more video source datas;
Video source data locating module 305, the channel buffer of described video source data is located in the memory location that is used for the described video source data of foundation;
Video source data read module 306 is used for obtaining described video source data at the channel buffer of described video source data.
Update instruction receiver module 309 is used for receiving the update displayed instruction of user's input, and described update displayed instruction comprises the display position of video source data, update displayed size and update displayed position;
For device embodiment shown in Figure 7, because it is similar substantially to preceding method embodiment, so describe fairly simplely, relevant part gets final product referring to the part explanation of method embodiment.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For device embodiment, because it is similar substantially to method embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of method embodiment.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software embodiment or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form of the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make and carry out the sequence of operations step producing computer implemented processing at computer or other programmable devices, thereby be provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame in the instruction that computer or other programmable devices are carried out.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative concept of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
At last, also need to prove, in this article, relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint and have the relation of any this reality or in proper order between these entities or the operation.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or also be included as the intrinsic key element of this process, method, article or equipment.Do not having under the situation of more restrictions, the key element that is limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
More than method that a kind of multi-channel video provided by the present invention source is shown synchronously, and, a kind of multi-channel video source synchronous display device, be described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. the method that the multi-channel video source shows synchronously is characterized in that, comprising:
Receive the video source data of one or more channel transfer;
Obtain the actual size of described video source data respectively;
Receive the idsplay order of user's input, described idsplay order comprises display position and the display size of described one or more video source datas;
The actual size of described video source data is adapted to the size of described display size;
Described one or more video source datas are carried out picture out picture according to the display position of correspondence in a picture show.
2. method according to claim 1 is characterized in that, also comprises:
The video source data of one or more channel transfer of described reception is stored in the corresponding channel buffer.
3. method according to claim 2 is characterized in that, described idsplay order also comprises the memory location of video source data, is adapted in described actual size with video source data before the step of size of described display size, also comprises:
Locate the channel buffer of described video source data according to the memory location of described video source data;
In the channel buffer of described video source data, obtain described video source data.
4. method according to claim 1 is characterized in that, also comprises:
Receive the update displayed instruction of user's input, described update displayed instruction comprises the display position of video source data, update displayed size and update displayed position;
According to the display position positioning video source data of described video source data, according to update displayed size and the update displayed position of described video source data described video source data display size and display position are upgraded.
5. according to the described method of the arbitrary claim of claim 1-4, it is characterized in that corresponding at least one channel buffer of the video source of each passage.
6. a multi-channel video source synchronous display apparatus is characterized in that, comprising:
The video source data receiver module is for the video source data that receives one or more channel transfer;
The actual size acquisition module is for the actual size of obtaining described video source data respectively;
The idsplay order receiver module is used for receiving the idsplay order that the user imports, and described idsplay order comprises display position and the display size of described one or more video source datas;
The size adaptation module is for the size that the actual size of described video source data is adapted to described display size;
Display module is used for will described one or more video source datas carrying out the picture out picture demonstration according to the display position of correspondence at a picture.
7. device according to claim 6 is characterized in that, also comprises:
The video source data memory module is used for the video source data of one or more channel transfer of described reception is stored in corresponding channel buffer.
8. device according to claim 7 is characterized in that, described idsplay order also comprises the memory location of video source data, and described device also comprises:
The video source data locating module is used for locating the channel buffer of described video source data according to the memory location of described video source data before the actual size with video source data is adapted to the size of described display size;
The video source data read module is used for obtaining described video source data at the channel buffer of described video source data.
9. device according to claim 6 is characterized in that, also comprises:
The update instruction receiver module is used for receiving the update displayed instruction of user's input, and described update displayed instruction comprises the display position of video source data, update displayed size and update displayed position;
Update module is used for the display position positioning video source data according to described video source data, according to update displayed size and the update displayed position of described video source data described video source data display size and display position is upgraded.
10. according to the described device of the arbitrary claim of claim 6-9, it is characterized in that corresponding at least one channel buffer of the video source of each passage.
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| CN105847938A (en) * | 2016-04-19 | 2016-08-10 | 乐视控股（北京）有限公司 | Video display method and device |
| CN105916000A (en) * | 2016-04-19 | 2016-08-31 | 乐视控股（北京）有限公司 | Video display method and device |
| WO2017181603A1 (en) * | 2016-04-19 | 2017-10-26 | 乐视控股（北京）有限公司 | Video display method and device |
| WO2017181595A1 (en) * | 2016-04-19 | 2017-10-26 | 乐视控股（北京）有限公司 | Method and device for video display |
| CN108174159A (en) * | 2018-01-03 | 2018-06-15 | 深圳市兆驰数码科技股份有限公司 | The method, apparatus and system that three pictures are shown in a kind of set-top box automatic detection |
| CN111541868A (en) * | 2020-03-31 | 2020-08-14 | 北京辰森世纪科技股份有限公司 | Cooking state monitoring method, device and system |
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