CN103402133A - Audio and video signal processing method and audio and video signal processing device - Google Patents
Audio and video signal processing method and audio and video signal processing device Download PDFInfo
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- CN103402133A CN103402133A CN2013103141435A CN201310314143A CN103402133A CN 103402133 A CN103402133 A CN 103402133A CN 2013103141435 A CN2013103141435 A CN 2013103141435A CN 201310314143 A CN201310314143 A CN 201310314143A CN 103402133 A CN103402133 A CN 103402133A
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Abstract
The embodiment of the invention discloses an audio and video signal processing method and an audio and video signal processing device. The method includes the following steps: after input signals are acquired and decoded, audio and video hierarchical display processing is performed on the obtained audio and video signals, so that hierarchically displayed audio and video signals are obtained, the hierarchically displayed audio and video signals are inputted into an audio and video mixer, so that mixed audio and video signals are obtained, and the mixed audio and video signals are outputted to an audio and video data interface and a wireless transmission interface. The audio and video signal processing method provided by the embodiment of the invention can be applied to digital television terminals, and can realize the transmission of mixed audio and video signals and also ensure that the digital television programs and applications of a digital television terminal can be shared by wireless terminals, other external devices and cables are not needed, and the audio and video signal processing device is easy to operate and convenient to use.
Description
Technical field
The present invention relates to the digital TV terminal field, relate in particular to a kind of processing method and device of audio-video signal.
Background technology
Development along with digital television techniques, picture-in-picture techniques has been come into people's life, picture-in-picture is to utilize digital technology, show two programs on same screen, namely on the key frame of normally watching, insert simultaneously one or more sprites through overcompression, in order to when appreciating key frame, monitor other channel.Picture-in-picture be auxiliary picture is placed in key frame within, picture out picture is that auxiliary picture is placed in outside key frame, generally, picture-in-picture and picture out picture general designation picture-in-picture.
Yet prior art can't realize wireless terminal and share the picture-in-picture display effect of Digital Television, can't bring the user and more share and experience.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, a kind of processing method and device of audio-video signal is provided, and can be applicable to the audio-video signal transmission after digital TV terminal is realized stack.
The embodiment of the present invention provides a kind of processing method of audio-video signal, comprising:
Obtain input signal, will carry out audio frequency and video layering Graphics Processing to the audio-video signal that obtains after the input signal decoding, obtain the audio-video signal that layering shows;
With the audio-video signal input audio frequency and video superimposer that described layering shows, the audio-video signal after being superposeed;
Export the audio-video signal after stack to audio, video data interface and/or wireless transmission interface.
As a kind of optional execution mode, export the audio-video signal after stack to wireless transmission interface, comprising:
Audio-video signal after described stack is carried out audio/video coding process, obtain coded data packet;
Export described coded data packet to wireless transmission interface.
As a kind of optional execution mode, the described input signal that obtains, will carry out audio frequency and video layering Graphics Processing to the audio-video signal that obtains after the input signal decoding, obtain the audio-video signal that layering shows, comprise:
The signal that input signal is comprised demodulation, demultiplexing, descrambling is processed;
Signal processing results is decoded, obtain the first audio-video signal and the second audio-video signal, described the first audio-video signal and the second audio-video signal are defined as the audio-video signal that layering shows;
As a kind of optional execution mode, the described input signal that obtains, will carry out audio frequency and video layering Graphics Processing to the audio-video signal that obtains after the input signal decoding, obtain the audio-video signal that layering shows, comprise:
, according to default program frequency point, obtain the input signal under this default program frequency point;
To carry out audio frequency and video layering Graphics Processing to the audio-video signal that obtains after the input signal decoding, obtain the audio-video signal that layering shows.
As a kind of optional execution mode, the described input signal that obtains comprises:
Obtain input signal by tuner, described tuner comprises one or more.
As a kind of optional execution mode, described audio, video data interface comprises: one or more HDMI (High Definition Multimedia Interface);
Described wireless transmission interface comprises: one or more wifi interface.
Correspondingly, the present invention also provides a kind of processing unit of audio-video signal, comprising:
Acquisition module, be used for obtaining input signal, will carry out audio frequency and video layering Graphics Processing to the audio-video signal that obtains after the input signal decoding, obtains the audio-video signal that layering shows;
Processing module, be used for the audio-video signal that described layering is shown input audio frequency and video superimposer, the audio-video signal after being superposeed;
Output module, the audio-video signal after being used for superposeing exports audio, video data interface and/or wireless transmission interface to.
, as a kind of optional execution mode, comprising:
Coding unit, be used for that the audio-video signal after described stack is carried out audio/video coding and process, and obtains coded data packet;
Wireless output unit, be used for exporting described coded data packet to wireless transmission interface;
Wired output unit, the audio-video signal after being used for superposeing exports the audio, video data interface to.
, as a kind of optional execution mode, comprising: signal processing unit is used for input signal is comprised the signal processing of demodulation, demultiplexing, descrambling;
Decoding unit, be used for signal processing results is decoded, and obtains the first audio-video signal and the second audio-video signal, and described the first audio-video signal and the second audio-video signal are defined as the audio-video signal that layering shows.
As a kind of optional execution mode, described acquisition module comprises: signal acquiring unit, be used for according to default program frequency point, and obtain the input signal under this default program frequency point.
As a kind of optional execution mode, described acquisition module specifically is used for obtaining input signal by tuner, and described tuner comprises one or more.
As a kind of optional execution mode, described audio, video data interface comprises: one or more HDMI (High Definition Multimedia Interface); Described wireless transmission interface comprises: one or more wifi interface.
The embodiment of the present invention has following beneficial effect:
The processing method of the audio-video signal that the embodiment of the present invention provides, can be applicable to the audio-video signal transmission after digital TV terminal is realized stack, can also realize digital television program and the application of the shared digital TV terminal of wireless terminal, need not external miscellaneous equipment and wire rod, simple to operate, easy to use.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the process flow figure of first embodiment of the invention audio-video signal;
Fig. 2 is embodiment of the present invention audio-video signal processing procedure schematic diagram;
Fig. 3 is the process flow figure of second embodiment of the invention audio-video signal;
Fig. 4 is the process flow figure of third embodiment of the invention audio-video signal;
Fig. 5 is the processing unit structural representation of embodiment of the present invention audio-video signal;
Fig. 6 is the processing unit structural representation of another embodiment of the present invention audio-video signal.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment that obtains, belong to the scope of protection of the invention.
See also Fig. 1, the process flow figure of first embodiment of the invention audio-video signal, the processing method of embodiment of the present invention audio-video signal can be applied to digital TV terminal and realize wireless audio-video transmission, can also realize digital television program and the application of the shared digital TV terminal of wireless terminal, specifically comprise:
S101, obtain input signal, will carry out audio frequency and video layering Graphics Processing to the audio-video signal that will obtain after the input signal decoding, obtain the audio-video signal that layering shows.
Particularly, the described input signal that obtains, comprise: the program frequency point that sets in advance according to operator, obtain input signal corresponding to this program frequency point, input signal is decoded, the audio-video signal that obtains after decoding is carried out audio frequency and video layering Graphics Processing, namely the two-way input signal shows by the first corresponding video layer, the second video layer respectively, obtain the audio-video signal that layering shows, be used for realizing " picture-in-picture " function.
Should be appreciated that digital TV terminal obtains input signal by tuner, described tuner comprises one or more.An at present multipotency of tuner obtains the audio-video signal of 8 programs.
Use the difference of a plurality of tuners and a tuner to be: to see also Fig. 2, take two tuners as example, due to two tuners being arranged, so obtaining different audio-video signals after decoding, the two-way input signal carries out audio frequency and video layering Graphics Processing, obtain the audio-video signal that layering shows.main screen use in this embodiment as the first video layer, auxiliary screen is as in addition specifically elaboration explanation of the demonstration of the second video layer output, owing to being the two-way input signal, therefore the program that its auxiliary screen is watched is not subjected to the impact of an other road program that main screen is watched, for example, main screen shows that the program X(program X in the audio-video signal that a tuner obtains is program 1 to any one program in program 8), program Y(program 9 in the audio-video signal that another tuner of auxiliary screen display obtains is to any one program in program 16), can resolve all programs in broadcasting and TV useful signal frequency range independently monitors or watches, expanded the scope that " picture-in-picture " watches program.In like manner, a plurality of tuners just have a plurality of input signals, also can not interact each other after a plurality of input signal decodings, if 3 tuners are arranged, main screen and auxiliary screen can be selected from 24 programs, thereby have expanded the scope that main screen, auxiliary screen are watched program.If only use a tuner input signal, main screen and auxiliary screen can only be selected from 8 programs.
S102, the audio-video signal input audio frequency and video superimposer that described layering is shown, the audio-video signal after being superposeed.
Particularly,, with the audio-video signal input audio frequency and video superimposer that described layering shows,, with described audio-video signal stack OSD layer, be convenient to after audio frequency and video output, audio frequency and video are controlled and watched.
Stack OSD layer is video superimpose, is picture and Word message are added in vision signal, and as the LOGO of TV station, the captions of film, the menu of television set, be all that the form by video superimpose is presented in video image.
S103, the audio-video signal after superposeing export audio, video data interface and/or wireless transmission interface to.
Particularly, described audio, video data interface comprises one or more HDMI (High Definition Multimedia Interface), i.e. HDMI interface, HDMI(High Definition Multimedia Interface) Chinese be HDMI (High Definition Multimedia Interface).HDMI can transmit HD video and the multichannel audio data of uncompressed high-qualityly, and the maximum data transmission speed is 5Gbps.Need not simultaneously to transmit at signal advance capable D/A or mould/number conversion; the video-audio signal that can guarantee first water transmits; the HDMI interface can be applicable on a lot of high-definition signals source and display device;, such as: blue light machine, high definition player, solely aobvious computer, high-end watch-dog, LCD TV, computer monitor etc., can connect the audio-video signal that display device HDMI interface transmits after stack by the HDMI interface and show output.
Described wireless transmission interface comprises: one or more WiFi interface, certainly in other execution mode of the present invention, wireless transmission interface also comprises: infrared interface, radio frequency interface, blue tooth interface etc., above-mentioned wireless transmission interface can be to the electronic equipment data with radio receiver, such as: the electronic equipments such as mobile phone, PDA, panel computer, these electronic equipments can be distinguished or obtain audio-video signal after the stack of digital TV terminal by wireless transmission interface simultaneously.
The processing method of the audio-video signal that the embodiment of the present invention provides, can be applicable to the audio-video signal transmission after digital TV terminal is realized stack, can also realize digital television program and the application of the shared digital TV terminal of wireless terminal, need not external miscellaneous equipment and wire rod, simple to operate, easy to use.See also Fig. 3, the process flow figure of second embodiment of the invention audio-video signal, the processing method of embodiment of the present invention audio-video signal can be applied to digital TV terminal and realize wireless audio-video transmission, can also realize digital television program and the application of the shared digital TV terminal of wireless terminal, specifically comprise:
S201, obtain input signal, will carry out audio frequency and video layering Graphics Processing to the audio-video signal that will obtain after the input signal decoding, obtain the audio-video signal that layering shows.
Particularly, the described input signal that obtains, comprise: the program frequency point that sets in advance according to operator, obtain input signal corresponding to this program frequency point, input signal is decoded, the audio-video signal that obtains after decoding is carried out audio frequency and video layering Graphics Processing, obtain the audio-video signal that layering shows, be used for realizing " picture-in-picture " function.
Should be appreciated that digital TV terminal obtains input signal by tuner, described tuner comprises one or more.
S202, the audio-video signal input audio frequency and video superimposer that described layering is shown, the audio-video signal after being superposeed.
Particularly,, with the audio-video signal input audio frequency and video superimposer that described layering shows,, with described audio-video signal stack OSD layer, be convenient to after audio frequency and video output, audio frequency and video are controlled and watched.
Stack OSD layer is video superimpose, is picture and Word message are added in vision signal, and as the LOGO of TV station, the captions of film, the menu of television set, be all that the form by video superimpose is presented in video image.
S203, the audio-video signal after described stack is carried out audio/video coding process, obtain coded data packet, export described coded data packet to wireless transmission interface.
Described wireless transmission interface comprises: one or more WiFi interface, certainly in other execution mode of the present invention, wireless transmission interface also comprises: infrared interface, radio frequency interface, blue tooth interface etc., above-mentioned wireless transmission interface can be to the electronic equipment data with radio receiver, such as: the electronic equipments such as mobile phone, PDA, panel computer, these electronic equipments can be distinguished or obtain audio-video signal after the stack of digital TV terminal by wireless transmission interface simultaneously.
Be to be understood that, audio-video signal after stack is carried out audio/video coding to be processed, described audio/video coding is processed, comprise: with the audio-video signal after described stack compress, the processing such as analysis, the outputting encoded data bag, described outputting encoded data bag is for the audio-video signal with after described stack transfers out, and receiving system only needs and will can show the content of audio frequency and video after described coded data packet decoding, decompression, reduction on its screen.
The processing method of the audio-video signal that the embodiment of the present invention provides, can be applicable to the audio-video signal transmission after digital TV terminal is realized stack, can also realize digital television program and the application of the shared digital TV terminal of wireless terminal, need not external miscellaneous equipment and wire rod, simple to operate, easy to use.See also Fig. 4, the process flow figure of third embodiment of the invention audio-video signal, the processing method of embodiment of the present invention audio-video signal can be applied to digital TV terminal and realize wireless audio-video transmission, can also realize digital television program and the application of the shared digital TV terminal of wireless terminal, specifically comprise:
S301, obtain input signal, the signal that input signal is comprised demodulation, demultiplexing, descrambling is processed, signal processing results is decoded, obtain the first audio-video signal and the second audio-video signal, described the first audio-video signal and the second audio-video signal are defined as the audio-video signal that layering shows.
Particularly, the described input signal that obtains, comprise: the program frequency point that sets in advance according to operator, obtain input signal corresponding to this program frequency point, input signal is decoded, the audio-video signal that obtains after decoding is carried out audio frequency and video layering Graphics Processing, obtain the audio-video signal that layering shows, be used for realizing " picture-in-picture " function.
What need to know is, the signal that input signal is comprised demodulation, demultiplexing, descrambling is processed, and signal processing results is decoded, and obtains the first audio-video signal and the second audio-video signal, after this two paths of signals is carried out the layering demonstration, main screen and the auxiliary screen of the corresponding receiving system of difference.
S302, the audio-video signal input audio frequency and video superimposer that described layering is shown, the audio-video signal after being superposeed.
Particularly, the first audio-video signal and the second audio-video signal that described layering shows are inputted the audio frequency and video superimposer,, with described the first audio-video signal and the second audio-video signal OSD layer that superposes respectively, be convenient to after audio frequency and video output, audio frequency and video are controlled and watched.
Stack OSD layer is video superimpose, is picture and Word message are added in vision signal, and as the LOGO of TV station, the captions of film, the menu of television set, be all that the form by video superimpose is presented in video image.
S303, the audio-video signal after superposeing export audio, video data interface and/or wireless transmission interface to.
Particularly, described audio, video data interface comprises one or more HDMI (High Definition Multimedia Interface), i.e. HDMI interface, HDMI(High Definition Multimedia Interface) Chinese be HDMI (High Definition Multimedia Interface).HDMI can transmit HD video and the multichannel audio data of uncompressed high-qualityly, and the maximum data transmission speed is 5Gbps.Need not simultaneously to transmit at signal advance capable D/A or mould/number conversion; the video-audio signal that can guarantee first water transmits; the HDMI interface can be applicable on a lot of high-definition signals source and display device;, such as: blue light machine, high definition player, solely aobvious computer, high-end watch-dog, LCD TV, computer monitor etc., can connect the audio-video signal that display device HDMI interface transmits after stack by the HDMI interface and show output.
Described wireless transmission interface comprises: one or more WiFi interface, certainly in other execution mode of the present invention, wireless transmission interface also comprises: infrared interface, radio frequency interface, blue tooth interface etc., above-mentioned wireless transmission interface can be to the electronic equipment data with radio receiver, such as: the electronic equipments such as mobile phone, PDA, panel computer, these electronic equipments can be distinguished or obtain audio-video signal after the stack of digital TV terminal by wireless transmission interface simultaneously.
The processing method of the audio-video signal that the embodiment of the present invention provides, can be applicable to the audio-video signal transmission after digital TV terminal is realized stack, can also realize digital television program and the application of the shared digital TV terminal of wireless terminal, need not external miscellaneous equipment and wire rod, simple to operate, easy to use.
Seeing also Fig. 5, is the processing unit structural representation of embodiment of the present invention audio-video signal, and this device 1 comprises:
Particularly, the described input signal that obtains, comprise: the program frequency point that sets in advance according to operator, obtain input signal corresponding to this program frequency point, input signal is decoded, the audio-video signal that obtains after decoding is carried out audio frequency and video layering Graphics Processing, namely the two-way input signal shows by the first corresponding video layer, the second video layer respectively, obtain the audio-video signal that layering shows, be used for realizing " picture-in-picture " function.
Should be appreciated that digital TV terminal obtains input signal by tuner, described tuner comprises one or more.An at present multipotency of tuner obtains the audio-video signal of 8 programs.
use the difference of a plurality of tuners and a tuner to be: to see also Fig. 2, take two tuners as example, due to two tuners being arranged, so obtaining different audio-video signals after decoding, the two-way input signal carries out audio frequency and video layering Graphics Processing, obtain the audio-video signal that layering shows, main screen use in this embodiment as the first video layer, auxiliary screen is as in addition specifically elaboration explanation of the demonstration of the second video layer output, owing to being the two-way input signal, therefore the program that its auxiliary screen is watched is not subjected to the impact of an other road program that main screen is watched, for example, main screen shows that the program X(program X in the audio-video signal that a tuner obtains is program 1 to any one program in program 8), program Y(program 9 in the audio-video signal that another tuner of auxiliary screen display obtains is to any one program in program 16), can resolve all programs in broadcasting and TV useful signal frequency range independently monitors or watches, expanded the scope of " picture-in-picture " viewing channel.In like manner, a plurality of tuners just have a plurality of input signals, also can not interact each other after a plurality of input signal decodings, if 3 tuners are arranged, main screen and auxiliary screen can be selected from 24 programs, thereby have expanded the scope that main screen, auxiliary screen are watched program.If only use a tuner input signal, main screen and auxiliary screen can only be selected from 8 programs.
Particularly,, with the audio-video signal input audio frequency and video superimposer that described layering shows,, with described audio-video signal stack OSD layer, be convenient to after audio frequency and video output, audio frequency and video are controlled and watched.
Stack OSD layer is video superimpose, is picture and Word message are added in vision signal, and as the LOGO of TV station, the captions of film, the menu of television set, be all that the form by video superimpose is presented in video image.
Particularly, described audio, video data interface comprises one or more HDMI (High Definition Multimedia Interface), i.e. HDMI interface, HDMI(High Definition Multimedia Interface) Chinese be HDMI (High Definition Multimedia Interface).HDMI can transmit HD video and the multichannel audio data of uncompressed high-qualityly, and the maximum data transmission speed is 5Gbps.Need not simultaneously to transmit at signal advance capable D/A or mould/number conversion; the video-audio signal that can guarantee first water transmits; the HDMI interface can be applicable on a lot of high-definition signals source and display device;, such as: blue light machine, high definition player, solely aobvious computer, high-end watch-dog, LCD TV, computer monitor etc., can connect the audio-video signal that display device HDMI interface transmits after stack by the HDMI interface and show output.
Described wireless transmission interface comprises: one or more WiFi interface, certainly in other execution mode of the present invention, wireless transmission interface also comprises: infrared interface, radio frequency interface, blue tooth interface etc., above-mentioned wireless transmission interface can be to the electronic equipment data with radio receiver, such as: the electronic equipments such as mobile phone, PDA, panel computer, these electronic equipments can be distinguished or obtain audio-video signal after the stack of digital TV terminal by wireless transmission interface simultaneously.The processing unit of the audio-video signal that the embodiment of the present invention provides, can be applicable to the audio-video signal transmission after digital TV terminal is realized stack, can also realize digital television program and the application of the shared digital TV terminal of wireless terminal, need not external miscellaneous equipment and wire rod, simple to operate, easy to use.
Seeing also Fig. 6, is the processing unit structural representation of another embodiment of the present invention audio-video signal, and this device 2 comprises:
Particularly, acquisition module 40 obtains input signal, comprise: the program frequency point that sets in advance according to operator, obtain input signal corresponding to this program frequency point, input signal is decoded, the audio-video signal that obtains after decoding is carried out audio frequency and video layering Graphics Processing, obtain the audio-video signal that layering shows, be used for realizing " picture-in-picture " function.
Should be appreciated that acquisition module 40 obtains input signal by tuner, described tuner comprises one or more.An at present multipotency of tuner obtains the audio-video signal of 8 programs.
Use the difference of a plurality of tuners and a tuner to be: to see also Fig. 2, take two tuners as example, due to two tuners being arranged, so obtaining different audio-video signals after decoding, the two-way input signal carries out audio frequency and video layering Graphics Processing, obtain the audio-video signal that layering shows.main screen use in this embodiment as the first video layer, auxiliary screen is as in addition specifically elaboration explanation of the demonstration of the second video layer output, owing to being the two-way input signal, therefore the program that its auxiliary screen is watched is not subjected to the impact of an other road program that main screen is watched, for example, main screen shows that the program X(program X in the audio-video signal that a tuner obtains is program 1 to any one program in program 8), program Y(program 9 in the audio-video signal that another tuner of auxiliary screen display obtains is to any one program in program 16), can resolve all programs in broadcasting and TV useful signal frequency range independently monitors or watches, expanded the scope of " picture-in-picture " viewing channel.In like manner, a plurality of tuners just have a plurality of input signals, also can not interact each other after the decoding of a plurality of input signals, if 3 tuners are arranged, thereby main screen and auxiliary screen can select to expand the scope that main screen, auxiliary screen are watched program from 24 programs.If only use a tuner input signal, main screen and auxiliary screen can only be selected from 8 programs.
Described acquisition module 40 comprises:
Signal acquiring unit 41, be used for according to default program frequency point, obtains the input signal under this default program frequency point.
Decoding unit 43, be used for signal processing results is decoded, and obtains the first audio-video signal and the second audio-video signal, and described the first audio-video signal and the second audio-video signal are defined as the audio-video signal that layering shows.
Particularly, signal acquiring unit 41 is according to default program frequency point, obtain the input signal under this default program frequency point, signal processing unit 42 comprises input signal the signal processing of demodulation, demultiplexing, descrambling, and the input signal of being convenient to 43 pairs of above-mentioned processing of process of decoding unit is decoded; 43 pairs of signal processing results of decoding unit are decoded, and obtain respectively the first audio-video signal and the second audio-video signal, after this two paths of signals is carried out the layering demonstration, and main screen and the auxiliary screen of the corresponding receiving system of difference.
Particularly,, with the audio-video signal input audio frequency and video superimposer that described layering shows,, with described audio-video signal stack OSD layer, be convenient to after audio frequency and video output, audio frequency and video are controlled and watched.
Stack OSD layer is video superimpose, is picture and Word message are added in vision signal, and as the LOGO of TV station, the captions of film, the menu of television set, be all that the form by video superimpose is presented in video image.
Particularly, described audio, video data interface comprises one or more HDMI (High Definition Multimedia Interface), i.e. HDMI interface, HDMI(High Definition Multimedia Interface) Chinese be HDMI (High Definition Multimedia Interface).HDMI can transmit HD video and the multichannel audio data of uncompressed high-qualityly, and the maximum data transmission speed is 5Gbps.Need not simultaneously to transmit at signal advance capable D/A or mould/number conversion; the video-audio signal that can guarantee first water transmits; the HDMI interface can be applicable on a lot of high-definition signals source and display device; such as: blue light machine, high definition player, solely aobvious computer, high-end watch-dog, LCD TV, computer monitor etc., the processing unit 1 of audio-video signal can connect the audio-video signal that display device HDMI interface transmits after stack by the HDMI interface show output.
Described wireless transmission interface comprises: one or more WiFi interface, certainly in other execution mode of the present invention, wireless transmission interface also comprises: infrared interface, radio frequency interface, blue tooth interface etc., above-mentioned wireless transmission interface can be to the electronic equipment data with radio receiver, such as: the electronic equipments such as mobile phone, PDA, panel computer, these electronic equipments can be distinguished or obtain audio-video signal after digital TV terminal stack by wireless transmission interface simultaneously.
Described output module 60 comprises:
Particularly, audio-video signal after coding unit 61 will superpose carries out audio/video coding to be processed, described audio/video coding is processed, comprise: with the audio-video signal after described stack compress, the processing such as analysis, the outputting encoded data bag, wireless output unit 62 and wired unit 63 outputting encoded data bags are to transfer out for the audio-video signal with after described stack is more efficient, and receiving system only needs can show the content of audio frequency and video after the described coded data packet decoding that will receive, decompression, reduction on its screen.
The processing unit of the audio-video signal that the embodiment of the present invention provides, can be applicable to the audio-video signal transmission after digital TV terminal is realized stack, can also realize digital television program and the application of the shared digital TV terminal of wireless terminal, need not external miscellaneous equipment and wire rod, simple to operate, easy to use.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, to come the relevant hardware of instruction to complete by computer program, described program can be stored in a computer read/write memory medium, this program when carrying out, can comprise the flow process as the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Above disclosed is only preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore according to the claims in the present invention, doing, still belong to the scope that the present invention is contained.
Claims (12)
1. the processing method of an audio-video signal, is characterized in that, comprising:
Obtain input signal, will carry out audio frequency and video layering Graphics Processing to the audio-video signal that obtains after the input signal decoding, obtain the audio-video signal that layering shows;
With the audio-video signal input audio frequency and video superimposer that described layering shows, the audio-video signal after being superposeed;
Export the audio-video signal after stack to audio, video data interface and/or wireless transmission interface.
2. the method for claim 1, is characterized in that, exports the audio-video signal after stack to wireless transmission interface, comprising:
Audio-video signal after described stack is carried out audio/video coding process, obtain coded data packet;
Export described coded data packet to wireless transmission interface.
3. the method for claim 1, is characterized in that, the described input signal that obtains will carry out audio frequency and video layering Graphics Processing to the audio-video signal that obtains after the input signal decoding, obtain the audio-video signal that layering shows, comprise:
The signal that input signal is comprised demodulation, demultiplexing, descrambling is processed;
Signal processing results is decoded, obtain the first audio-video signal and the second audio-video signal, described the first audio-video signal and the second audio-video signal are defined as the audio-video signal that layering shows.
4. the method for claim 1, is characterized in that, the described input signal that obtains will carry out audio frequency and video layering Graphics Processing to the audio-video signal that obtains after the input signal decoding, obtain the audio-video signal that layering shows, comprise:
, according to default program frequency point, obtain the input signal under this default program frequency point;
To carry out audio frequency and video layering Graphics Processing to the audio-video signal that obtains after the input signal decoding, obtain the audio-video signal that layering shows.
5. method as claimed in claim 4, is characterized in that, the described input signal that obtains comprises:
Obtain input signal by tuner, described tuner comprises one or more.
6. the method for claim 1, is characterized in that,
Described audio, video data interface comprises: one or more HDMI (High Definition Multimedia Interface);
Described wireless transmission interface comprises: one or more wifi interface.
7. the processing unit of an audio-video signal, is characterized in that, comprising:
Acquisition module, be used for obtaining input signal, will carry out audio frequency and video layering Graphics Processing to the audio-video signal that obtains after the input signal decoding, obtains the audio-video signal that layering shows;
Processing module, be used for the audio-video signal that described layering is shown input audio frequency and video superimposer, the audio-video signal after being superposeed;
Output module, the audio-video signal after being used for superposeing exports audio, video data interface and/or wireless transmission interface to.
8. device as claimed in claim 7, is characterized in that, described output module comprises:
Coding unit, be used for that the audio-video signal after described stack is carried out audio/video coding and process, and obtains coded data packet;
Wireless output unit, be used for exporting described coded data packet to wireless transmission interface;
Wired output unit, the audio-video signal after being used for superposeing exports the audio, video data interface to.
9. device as claimed in claim 7, is characterized in that, described acquisition module comprises:
Signal processing unit, be used for input signal is comprised the signal processing of demodulation, demultiplexing, descrambling;
Decoding unit, be used for signal processing results is decoded, and obtains the first audio-video signal and the second audio-video signal, and described the first audio-video signal and the second audio-video signal are defined as the audio-video signal that layering shows.
10. device as claimed in claim 7, is characterized in that, described acquisition module comprises:
Signal acquiring unit, be used for according to default program frequency point, obtains the input signal under this default program frequency point.
11. device as claimed in claim 10, is characterized in that,
Described acquisition module specifically is used for obtaining input signal by tuner, and described tuner comprises one or more.
12. device as claimed in claim 7, is characterized in that,
Described audio, video data interface comprises: one or more HDMI (High Definition Multimedia Interface);
Described wireless transmission interface comprises: one or more wifi interface.
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| CN2013103141435A CN103402133A (en) | 2013-07-24 | 2013-07-24 | Audio and video signal processing method and audio and video signal processing device |
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| CN2013103141435A CN103402133A (en) | 2013-07-24 | 2013-07-24 | Audio and video signal processing method and audio and video signal processing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686014A (en) * | 2013-12-03 | 2014-03-26 | 深圳市同洲电子股份有限公司 | Multiple-screen sharing method and related terminal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020069411A1 (en) * | 1999-12-09 | 2002-06-06 | Liberate Technologies, Morecom Division, Inc. | Enhanced display of world wide web pages on television |
| CN102404527A (en) * | 2011-12-15 | 2012-04-04 | 深圳Tcl新技术有限公司 | Display method and terminal for digital television program |
| CN102523510A (en) * | 2011-12-24 | 2012-06-27 | 深圳市同洲电子股份有限公司 | Multiscreen interaction method and apparatus thereof, and digital television all-in-one machine |
| CN103002335A (en) * | 2011-09-14 | 2013-03-27 | 中国移动通信集团公司 | Method, system and equipment for realizing wireless picture-in-picture function |
-
2013
- 2013-07-24 CN CN2013103141435A patent/CN103402133A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020069411A1 (en) * | 1999-12-09 | 2002-06-06 | Liberate Technologies, Morecom Division, Inc. | Enhanced display of world wide web pages on television |
| CN103002335A (en) * | 2011-09-14 | 2013-03-27 | 中国移动通信集团公司 | Method, system and equipment for realizing wireless picture-in-picture function |
| CN102404527A (en) * | 2011-12-15 | 2012-04-04 | 深圳Tcl新技术有限公司 | Display method and terminal for digital television program |
| CN102523510A (en) * | 2011-12-24 | 2012-06-27 | 深圳市同洲电子股份有限公司 | Multiscreen interaction method and apparatus thereof, and digital television all-in-one machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686014A (en) * | 2013-12-03 | 2014-03-26 | 深圳市同洲电子股份有限公司 | Multiple-screen sharing method and related terminal |
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Application publication date: 20131120 |