CN109426472A - Multimedia play system and multimedia player - Google Patents
Multimedia play system and multimedia player Download PDFInfo
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- CN109426472A CN109426472A CN201710744435.0A CN201710744435A CN109426472A CN 109426472 A CN109426472 A CN 109426472A CN 201710744435 A CN201710744435 A CN 201710744435A CN 109426472 A CN109426472 A CN 109426472A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
- G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
Abstract
The embodiment of the invention discloses a kind of multimedia play systems.The system includes: multimedia player, is provided with image output interface and video output interface；And display screen；Wherein, multimedia player is for handling target video source, and to obtain the first image data and/or the second image data, image output interface is for exporting the first image data to display screen, and video output interface is for exporting the second image data.The switching of synchronous asynchronous double mode may be implemented using multimedia play system provided in an embodiment of the present invention to play, it can be by input video source played in full screen on a display screen.
Description
Technical field
The present invention relates to display control technology fields more particularly to a kind of multimedia play system and a kind of multimedia to broadcast
Put device.
Background technique
Display screen line had become a fast-developing new industry already, and the market space is huge, has a extensive future.With information
The high speed development of industry, LED show a kind of important means propagated as information, are widely used to indoor and outdoor and are taken
The public place of content of being engaged in and service aim publicity, such as indoor and outdoor public place advertising, airport station passenger guidance letter
Breath, public transit vehicle reporting station system, security and bank information are shown, restaurant quotation information is shown, expressway variable message plate, body
Educate venue sportscast, building lamp decoration, traffic lights, Landscape Lighting etc..Obviously, LED, which is shown, has become city lighting, modern times
Change an important symbol with informationized society.
For the display screen of business application, advertisement machine, mirror screen, transparent shop window screen etc., these advertisement machines can be used in
Media information can be individually played, more advertisement machines can also be stitched together, play advertising information together, can support interaction,
Heat transfer agent etc. is sensed by interaction come situations such as showing some contents.The development year by year that these emerging business are shown, LED
Display screen body manufacturer also wishes that LED display is used as to the production of standard as liquid crystal digital label in business display field
Product are sold.A novel multimedia player is needed to cope with these application demands.
The function of current traditional multimedia player is only that can control individual advertisement machine, more multimedias
Video source cannot be concatenated together between device, be between each other it is independent, since this multimedia player is for external defeated
Enter the function that source does not scale, the display resolution of advertisement machine is generally not the resolution ratio of standard, this makes synchronous input
Source cannot be displayed in full screen in screen.
Summary of the invention
The embodiment of the present invention provides a kind of multimedia play system and a kind of multimedia player, solves multimedia and broadcasts
The problem of even input source cannot be displayed in full screen can not be cascaded by putting between device.
On the one hand, a kind of multimedia play system is provided, comprising: multimedia player is provided with image output interface
And video output interface；And display screen.Wherein, the multimedia player is for handling target video source, to obtain
To the first image data and/or the second image data, described image output interface is for exporting the first image data to institute
Display screen is stated, the video output interface is for exporting second image data.Wherein, the target video source is to receive
External video source or be stored in the local video source of the multimedia player local.
In one embodiment of the invention, the multimedia player further include: video input interface, the first video turn
Change circuit, memory, first processor, second processor and the second video conversion circuit；Wherein, the first Video Quality Metric electricity
Road is connected between the video input interface and the first processor, and the video input interface is for receiving the outside
Video source is simultaneously transmitted to first video conversion circuit, first video conversion circuit be used for the external video source into
The processing of row video, external video source is transmitted to the first processor after being handled；At the memory connection described second
Device is managed, for storing the local video source；The second processor connects the first processor, deposits for handling from described
The local video source that reservoir obtains, local video source is transmitted to the first processor after being handled；At described first
Manage device connection described image output interface and the video output interface simultaneously connected by second video conversion circuit, for pair
One of local video source is handled after external video source and the processing after the processing, obtains the first image data
And/or second image data；Second video conversion circuit is used to carry out video processing to second image data
After be transmitted to the video output interface.
In one embodiment of the invention, the multimedia player further include: communication interface connects at described second
Device is managed, is used for and external device communication is stored using obtaining media data to the memory as the local video source.
In one embodiment of the invention, the first processor is also used to obtain the resolution ratio letter of the display screen
Breath, and the resolution information is sent to the second processor by control bus so that the second processor is according to institute
It states resolution information and processing is zoomed in and out to the local video source；And/or the first processor is also used to obtain described show
The resolution information of display screen, and processing is zoomed in and out to the external video source according to the resolution information.
In one embodiment of the invention, the system comprises multiple display screens and multiple multimedias
Device, the multiple multimedia player connect the multiple display screen by respective described image output interface respectively；Every phase
The one of adjacent two multimedia players passes through the video input interface of oneself and the video output interface of another one
It is connected, so that the multiple multimedia player is concatenated together.
In one embodiment of the invention, the first processor is also used to the deviation post according to setting to described outer
The image of portion's video source or second broadcast source carries out intercepting process, to obtain the first image data.
In another aspect, providing a kind of multimedia player, comprising: video input interface, is deposited the first video conversion circuit
Reservoir, first processor, second processor, image output interface, the second video conversion circuit and video output interface；Wherein,
First video conversion circuit is connected between the first processor and the video input interface, and the video input connects
For receiving external video source and being transmitted to first video conversion circuit, first video conversion circuit is used for institute mouth
It states external video source and carries out video processing, external video source is transmitted to the first processor after being handled；The memory
The second processor is connected, for storing local video source；The second processor connects the first processor, for locating
The local video source obtained from the memory is managed, local video source is transmitted to the first processor after being handled；
The first processor connects described image output interface and connects the video output by second video conversion circuit
Interface obtains the first figure for handling one of local video source after external video source after the processing and the processing
As data and/or the second image data；Described image output interface is for exporting the first image data；Second video
Conversion circuit is transmitted to the video output interface output after being used to carry out second image data video processing.
In one embodiment of the invention, the multimedia player further include: communication interface connects at described second
Device is managed, is used for and external device communication is stored using obtaining media data to the memory as the local video source.
In one embodiment of the invention, the first processor is also used to obtain the resolution ratio letter of the display screen
Breath, and the resolution information is sent to the second processor by control bus so that the second processor is according to institute
It states resolution information and processing is zoomed in and out to the local video source；And/or the first processor is also used to obtain described show
The resolution information of display screen, and processing is zoomed in and out to the external video source according to the resolution information.
In one embodiment of the invention, the first processor is also used to the deviation post according to setting to the place
Local video source carries out image interception processing after external video source or the processing after reason, to obtain the first image data.
One technical solution of above-mentioned technical proposal has the advantages that be broadcast using multimedia provided in an embodiment of the present invention
Place system may be implemented the switching of synchronous asynchronous double mode and play, can be by input video source played in full screen on a display screen.
Another technical solution of above-mentioned technical proposal has the advantages that using multimedia provided in an embodiment of the present invention
Player can be by input video source played in full screen on a display screen, and can cascade broadcasting.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others
Attached drawing.
Fig. 1 is a kind of configuration diagram for multimedia play system that first embodiment of the invention provides；
Fig. 2 is a kind of application schematic diagram for multimedia play system that first embodiment of the invention provides；
Fig. 3 is a kind of structural schematic diagram for multimedia player that second embodiment of the invention provides；
Fig. 4 is that a kind of more multimedia players that second embodiment of the invention provides cascade schematic diagram；
Fig. 5 is the picture effect figure that the display screen splicing that second embodiment of the invention provides plays；
Fig. 6 is the asynchronous tiled display schematic diagram of a kind of display screen that second embodiment of the invention provides；
Fig. 7 is the synchronous tiled display schematic diagram of a kind of display screen that second embodiment of the invention provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
First embodiment
As shown in FIG. 1, FIG. 1 is first embodiment of the invention provide a kind of multimedia play system configuration diagram,
Multimedia play system 10 includes: multimedia player 11, is provided with image output interface and video output interface；And display
Screen 12.
Wherein, the multimedia player 11 is for handling target video source, with obtain the first image data and/
Or second image data；Described image output interface for exporting the first image data to the display screen 12, such as
It is network interface；The video output interface is, for example, that the digital videos such as DVI, HDMI connect for exporting second image data
Mouth even analog video interface, so as to be connected to another multimedia player 11 even PC machine, projector etc..Its
In, target video source is selected from the external video source received and is stored in the local local video source of multimedia player 11, when
When target video source is the external video source received, multimedia player 11 works in synchronous mode, and works as target video source
To store in local local video source, multimedia player 11 works in asynchronous mode.
For convenient for being more clearly understood that the present embodiment, below special specific example of lifting aforementioned system is described in detail.
Wherein, the multimedia player 11 includes: video input interface, the first video conversion circuit, memory, first
Processor, second processor and the second video conversion circuit；Specifically,
First video conversion circuit is connected between the video input interface and the first processor, the view
Frequency input interface is for receiving the external video source and being transmitted to first video conversion circuit, first Video Quality Metric
Circuit is used to carry out video processing to the external video source, and external video source is transmitted to first processing after being handled
Device；
The memory connects the second processor, for storing the local video source；
The second processor connects the first processor, for handling the local view obtained from the memory
Frequency source, local video source is transmitted to the first processor after being handled；
The first processor connects described image output interface and by described in second video conversion circuit connection
Video output interface is obtained for handling one of local video source after external video source after the processing and the processing
To the first image data and/or second image data；
Second video conversion circuit is used to be transmitted to the view after carrying out video processing to second image data
Frequency output interface.
Further, the multimedia player 11 further include:
Communication interface connects the second processor, is used for and external device communication is stored with obtaining media data to institute
Memory is stated as the local video source.
Wherein, the first processor is also used to obtain the resolution information of the display screen 12, and by the resolution ratio
Information by control bus be sent to the second processor for the second processor according to the resolution information to institute
It states local video source and zooms in and out processing.
In addition, the first processor can also be used in the resolution information for obtaining the display screen 12, and according to described point
Resolution information zooms in and out processing to the external video source.
Further, the system may include multiple display screens 12 and multiple multimedia players 11, institute
It states multiple multimedia players and the multiple display screen is connected by respective described image output interface respectively；Each adjacent two
The one of multimedia player is connected by the video input interface of oneself with the video output interface of another one,
So that the multiple multimedia player is concatenated together.
Wherein, the first processor is also used to the deviation post according to setting to the external video source or described
The image of two broadcast sources carries out intercepting process, to obtain the first image data.
Wherein, the first processor is programmable logic device, and the second processor is embeded processor.
In order to further illustrate the practical significance of multimedia play system, spy lifts following instance.Referring to FIG. 2, Fig. 2 is this
A kind of application schematic diagram for multimedia play system that invention first embodiment provides.Multimedia player, for business application,
Multimedia can be sent by cloud service for broadcasting content separately through the video input or user of external video source to broadcast
It puts in device, controls the independent broadcasting of advertisement machine.
Multimedia play system provided in this embodiment has the advantages that
1) function of asynchronous multimedia player is supported；
2) video input signals interface, this video signal interface is supported to have HDMI, DVI etc.；
3) have the function that signal processing and signal are sent, can connect external reception card, shown for controlling LED
Screen；
4) has video output interface, this video output interface includes HDMI, DVI etc.；
5) CPU main process task part (i.e. second processor) is configured with the interface with PERCOM peripheral communication, including RJ45, USB, serial ports
Etc.；
6) has the function of synchronous/asynchronous switching；
7) has the function that synchronous input video source is had into automatic full-screen zoom；
8) external audio-video input can be carried out Loop and go out (ring goes out) by video output interface, can be by the main place CPU
The ability that the audio-video signal Loop of reason part goes out.Loop function mentioned here, referring to can be by video source, audio
It is capable of free of losses and export in source.
Second embodiment
Referring to FIG. 3, Fig. 3 is a kind of structural schematic diagram for multimedia player that second embodiment of the invention provides, it should
Multimedia player 20 includes:
Video input interface 21, the first video conversion circuit 27, memory 29, first processor 23, second processor 24,
Image output interface 25, the second video conversion circuit 28 and video output interface 26；Wherein,
First video conversion circuit 27 is connected between the first processor 23 and the video input interface 21,
The video input interface 21 is for receiving external video source and being transmitted to first video conversion circuit 27, first view
Frequency converter circuit 27 is used to carry out video processing to the external video source, and external video source is transmitted to described the after being handled
One processor 23；
The memory 29 connects the first processor 24, for storing local video source；
The first processor 24 connects the first processor 23, for handling from described in the memory 29 acquisition
Local video source, local video source is transmitted to the first processor 23 after being handled；
The first processor 23 connects described image output interface 25 and is connected by second video conversion circuit 28
The video output interface 26 is connect, for carrying out to one of local video source after external video source after the processing and the processing
Processing, obtains the first image data and/or the second image data；
Described image output interface 25 is for exporting the first image data；
Second video conversion circuit 28 is used for described to being transmitted to after second image data progress video processing
Video output interface 26 exports.
Wherein, video input interface 21 and video output interface 26 can be HDMI, DVI etc., the first video conversion circuit
27 for example including video decoding chip, and as DVI decoding chip, HDMI etc., the second video conversion circuit 28 is compiled for example including video
Code chip, as DVI coding chip, HDMI coding chip etc..
Wherein, the multimedia player 20 further include: communication interface 22 connects the second processor 24, for
External device communication is stored using obtaining media data to the memory 29 as the local video source.The communication interface 22
It can be RJ45, USB, serial ports, 3G/4G, WiFi, bluetooth etc..
Further, the first processor 23 is also used to obtain the resolution information of the display screen, and will be described point
Resolution information is sent to the first processor 24 by control bus so that the first processor 24 is according to the resolution ratio
Information zooms in and out processing to the local video source.
The first processor 23 can be also used for obtaining the resolution information of the display screen, and according to the resolution ratio
Information zooms in and out processing to the external video source.
Wherein, the first processor 23 be also used to the deviation post according to setting to external video source after the processing or
Local video source carries out image interception processing after the processing, to obtain the first image data.
Further, the first processor 23 is programmable logic device, and the second processor 24 is embedded place
Device is managed, as arm processor etc..
Wherein, video source is prestored to inside player in i.e. memory 29 by communication interface, then not outer
It can also be played out in the case where portion's computer, this operating mode is asynchronous mode；
Wherein, multimedia player 20 receives external video source, and passes through the output of image output interface 25 to display screen
Upper display, this operating mode are synchronous mode.
Because the size of some display screens such as LED display is not the display resolution of standard, standard in practical application
Display resolution such as 1080P, 720P, 480P etc., and due to the inherent feature of these display screens, be frequently not standard
Display resolution, such as 256*512,384*128,1024*64,480*576 etc. are not standards just because of resolution ratio,
Display for video, it is sometimes necessary to which the video source for inputting synchronization is displayed in full screen into these display screens or asynchronous mould
Under formula, entire display screen can be paved with and played.
The principle of work and power of full frame auto zoom is as follows:
Full frame auto zoom mechanism under asynchronous mode
For the broadcasting under asynchronous mode, CPU main process task part (corresponding second processor) is can be patrolled by programmable
Collect the true resolution that device (corresponding first processor) reads current display screen, such as 480*576.When getting display screen
After true resolution, the content that CPU main process task part is played carries out self-adapting window according to the actual size of display screen and broadcasts
It puts.Reach the function of full frame auto zoom by this mode.
The automatic full-screen zoom mechanism of video source under synchronous mode
Under synchronous mode, the headend equipment of video input interface is the resolution ratio for having no idea to know current display screen,
Even and if knowing this resolution ratio, it is also possible to have no idea to zoom in and out.So being often input to the outside of video input interface
Video source is video source of a standard, such as 1080P, 720P etc..
Programmable logic device (corresponding first processor) is able to know that the actual displayed resolution ratio of current display screen, simultaneously
Need to detect the video resolution size of video input interface input.It, will be defeated when receiving the full frame auto zoom order of needs
The external video source entered carries out auto zoom according to the true resolution size of display screen, and the algorithm of scaling generally has interpolation, side
Edge extracts the mechanism such as scaling, and scales and need to realize by way of hardware.It can fully ensure that the output of video is real in this way
Shi Xing.
In order to further illustrate the practical application of multimedia player, spy lifts following instance.
Referring to FIG. 4, Fig. 4 is that a kind of more multimedia players that second embodiment of the invention provides cascade schematic diagram.
More multimedia players 41 can successively be connected grade by video input interface 42 and video output interface 43
It is linked togather, can complete individually to play, i.e., video input interface 42 and the first video conversion circuit are passed through by external video source
The video image data being played simultaneously is transmitted to first processor, first processor is according to itself with the aobvious of the advertisement machine 44 carried
Show that the resolution ratio of the resolution adjustment video image data is played with adaptability.For example, at night 7:00 when, pass through broadcasting and TV video
Signal is input to the video input interface to control more multimedia players 41 and play news hookup.And at night after 7:30,
Control instruction is sent from second processor to first processor, stops receiving the external video source inputted by video input interface,
Second processor transfers the advertisement video image data stored in local storage simultaneously, and controls first processor and receive and broadcast
Put the advertisement video image data.
Please also refer to Fig. 5, Fig. 5 is the picture effect figure that the display screen splicing that second embodiment of the invention provides plays.
Specifically, on the basis of the above embodiments, the display screen of the multimedia play system is also possible to be stitched together and be broadcast
It puts.Specifically, the video input interface of the video output interface of first multimedia player, second multimedia player,
The video output interface of second multimedia player, the video input interface of third multimedia player are sequentially connected,
The video data of broadcasting can be the external video source accessed by the video input interface of the first multimedia player, can also be with
It is the local video source being locally stored in the first multimedia player.
Fig. 6 is referred to, Fig. 6 is the asynchronous tiled display schematic diagram of a kind of display screen that second embodiment of the invention provides.Match
Three multimedia players 61 are set, three display screens 62 is controlled respectively namely display screen 1, display screen 2 and display screen 3 is combined into one
A large-size screen monitors play out.Firstly, by the video input interface of outer PC access First multimedia player 61, to first
Platform, second and third platform multimedia player band carry region and configured, complete the offset setting of each multimedia player
Afterwards, First multimedia player 61 exports the video of storage inside, is gone out by 63 ring of video output interface to more than second
The video input interface 64 of media player 61, similarly ring goes out (Loop) to third platform multimedia player 61.
Referring to FIG. 7, Fig. 7 is the synchronous tiled display schematic diagram of a kind of display screen that second embodiment of the invention provides.Match
Three multimedia players 71 are set, three display screens 72 is controlled respectively namely display screen 1, display screen 2 and display screen 3 is combined into one
A large-size screen monitors play out.That is, 3 multimedia players in figure are used to play external video source (such as being provided by PC machine), this
When can by each multimedia player needs, to pass through video together to the deviation post of the parts of images of display defeated by PC machine
Incoming interface is sent to the first processor of the first, second and third multimedia video player, and each first processor is according to oneself
Deviation post video image is intercepted, obtain itself with carry partial video image, and control corresponding display screen into
Row display.That is, First multimedia player receives external video source, gone out by 73 ring of video output interface to second
The video input interface 74 of platform multimedia player, similarly ring goes out to third platform multimedia player.
Wherein, Loop function (ring goes out function) refers to and export by video source free of losses.
Specifically, the mechanism that more multimedia player splicings play is as follows:
Video output interface to the external video source of synchronous mode or the local video source of asynchronous mode, Loop when
It waits, is the external video source of its original video source, especially synchronous mode of Loop, is its video before not scaling of Loop
Source, to guarantee the complete of video source.
Assuming that the display resolution of every display screen is W*H, wherein W is horizontal resolution size, and H is vertical direction point
Resolution size, it is assumed that cascaded N platform display screen in the horizontal direction.So when carrying out display screen configuration, more are spelled
Together as a large-size screen monitors, the actual resolution sizes of First are WN*H, that is to say, that cascade every multimedia is broadcast below
When putting the display screen configuration of device, it is W that horizontal direction, which configures size, and the size of vertical direction is configured to H.
But every multimedia display is a portion of an entire picture, so needing to be configured bits of offset
It sets, position for n-th multimedia player (1≤n≤N) its starting display is { (n-1) * W, 0 }.For example First is more
The initial position of media player is (0,0), and the position of second multimedia player is (W, 0), and so on.
The embodiment of the present invention can control every display screen, individually be played, can also more cascades play together；It can
When switching with synchronous/asynchronous double mode, and switch, audio-visual synchronization output is supported.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the division of unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, such as multichannel unit or component can be with
In conjunction with or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or discussed
Mutual coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING of device or unit or
Communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multichannel
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit being realized in the form of SFU software functional unit can store and computer-readable deposit at one
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the portion of each embodiment the method for the present invention
Step by step.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, abbreviation
ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc. are various can store
The medium of program code.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of multimedia play system characterized by comprising
Multimedia player is provided with image output interface and video output interface；
Display screen；
Wherein, the multimedia player is for handling target video source, to obtain the first image data and/or second
Image data, for exporting the first image data to the display screen, the video output connects described image output interface
Mouth is for exporting second image data；The target video source is the external video source received or is stored in more matchmakers
The local video source of body player local.
2. the system as claimed in claim 1, which is characterized in that the multimedia player further include: video input interface,
One video conversion circuit, memory, first processor, second processor and the second video conversion circuit；Wherein,
First video conversion circuit is connected between the video input interface and the first processor, and the video is defeated
Incoming interface is for receiving the external video source and being transmitted to first video conversion circuit, first video conversion circuit
For carrying out video processing to the external video source, external video source is transmitted to the first processor after being handled；
The memory connects the second processor, for storing the local video source；
The second processor connects the first processor, for handling the local video obtained from the memory
Source, local video source is transmitted to the first processor after being handled；
The first processor connects described image output interface and connects the video by second video conversion circuit
Output interface obtains institute for handling one of local video source after external video source after the processing and the processing
State the first image data and/or second image data；
Second video conversion circuit is used for defeated to the video is transmitted to after second image data progress video processing
Outgoing interface.
3. system as claimed in claim 2, which is characterized in that the multimedia player further include: communication interface connects institute
Second processor is stated, is used for and external device communication is stored using obtaining media data to the memory as the local video
Source.
4. system as claimed in claim 2, which is characterized in that the first processor is also used to obtain point of the display screen
Resolution information, and the resolution information is sent to the second processor by control bus for the second processor
Processing is zoomed in and out to the local video source according to the resolution information；And/or the first processor is also used to obtain
The resolution information of the display screen, and processing is zoomed in and out to the external video source according to the resolution information.
5. system as claimed in claim 2, which is characterized in that the system comprises multiple display screens and multiple described more
Media player, the multiple multimedia player connect the multiple display by respective described image output interface respectively
Screen；The one of each adjacent two multimedia player by oneself the video input interface and another one the video it is defeated
Outgoing interface is connected, so that the multiple multimedia player is concatenated together.
6. system as claimed in claim 5, which is characterized in that the first processor is also used to the deviation post according to setting
Intercepting process is carried out to the image of the external video source or second broadcast source, to obtain the first image data.
7. a kind of multimedia player characterized by comprising video input interface, the first video conversion circuit, memory,
First processor, second processor, image output interface, the second video conversion circuit and video output interface；Wherein,
First video conversion circuit is connected between the first processor and the video input interface, and the video is defeated
For receiving external video source and being transmitted to first video conversion circuit, first video conversion circuit is used for incoming interface
Video processing is carried out to the external video source, external video source is transmitted to the first processor after being handled；
The memory connects the second processor, for storing local video source；
The second processor connects the first processor, for handling the local video obtained from the memory
Source, local video source is transmitted to the first processor after being handled；
The first processor connects described image output interface and connects the video by second video conversion circuit
Output interface obtains for handling one of local video source after external video source after the processing and the processing
One image data and/or the second image data；
Described image output interface is for exporting the first image data；
Second video conversion circuit is used for defeated to the video is transmitted to after second image data progress video processing
Outgoing interface output.
8. multimedia player as claimed in claim 7, which is characterized in that the multimedia player further include: communication connects
Mouthful, the second processor is connected, is used for and external device communication is stored using obtaining media data to the memory as institute
State local video source.
9. multimedia player as claimed in claim 7, which is characterized in that the first processor is also used to obtain described aobvious
The resolution information of display screen, and the resolution information is sent to the second processor by control bus for described
Two processors zoom in and out processing to the local video source according to the resolution information；And/or the first processor is also
Place is zoomed in and out to the external video source for obtaining the resolution information of the display screen, and according to the resolution information
Reason.
10. system as claimed in claim 7, which is characterized in that the first processor is also used to the bits of offset according to setting
It sets and image interception processing is carried out to local video source after external video source after the processing or the processing, to obtain described first
Image data.
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