CN106791902A - To the audio-video switching method and its cut bank of mobile internet device - Google Patents

To the audio-video switching method and its cut bank of mobile internet device Download PDF

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Publication number
CN106791902A
CN106791902A CN201611201811.3A CN201611201811A CN106791902A CN 106791902 A CN106791902 A CN 106791902A CN 201611201811 A CN201611201811 A CN 201611201811A CN 106791902 A CN106791902 A CN 106791902A
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China
Prior art keywords
video
audio
embedding
frequency
unit
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CN201611201811.3A
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Chinese (zh)
Inventor
吴海涛
史明程
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Beijing Multi Angle Culture Communication Co Ltd
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Beijing Multi Angle Culture Communication Co Ltd
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Priority to CN201611201811.3A priority Critical patent/CN106791902A/en
Publication of CN106791902A publication Critical patent/CN106791902A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/21—Server components or server architectures
    • H04N21/218—Source of audio or video content, e.g. local disk arrays
    • H04N21/2187—Live feed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/233—Processing of audio elementary streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234363—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the spatial resolution, e.g. for clients with a lower screen resolution
    • H04N21/234372—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the spatial resolution, e.g. for clients with a lower screen resolution for performing aspect ratio conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/23439—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements for generating different versions

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

The invention discloses a kind of audio-video switching method and its cut bank to mobile internet device.The audio-video switching method to mobile internet device is：Receive multichannel audio-video frequency stream, the de-embedding of multichannel audio-video frequency stream difference, broadcasting to receiving, the output of audio/video flow all the way in the content selection multichannel audio-video frequency stream played, or, according to the content selection multichannel audio-video frequency Liu Zhongji roads audio/video flow output played.The cut bank of the audio frequency and video switching to mobile internet device is to exempt from embedding cut bank or embedding cut bank.Mobile phone and/or the live switching simultaneously of many seats in the plane of panel computer can be realized using changing method of the invention and cut bank, spectators can at any time see the video pictures of different angles or the video pictures of different places.Advantageously reduce the manufacturing cost of cut bank.Be conducive to the flexible switching to audio frequency and video.The full screen pictures of maximum can be played out on the mobile phone or the screen of panel computer for receiving audio/video flow.

Description

To the audio-video switching method and its cut bank of mobile internet device
Technical field
The present invention relates to a kind of method and its switching device switched over to multichannel audio-video frequency, more particularly to one kind is to moving The audio-video switching method of dynamic internet device (as shot and audiovisual with mobile phone and/or panel computer and/or similar devices) and Its cut bank.
Background technology
2015 beginning of the years, the live application of the mobile phone such as external Periscope and Meerkat is hot, Google, Amazon, Facebook, Twitter are competitively chased.The domestic formula in single file with start-up group was poured in as beginning, reflected visitor, the hand that Chinese prickly ash is representative The live product of machine has lighted the live temperature of the whole people.From internet to mobile Internet, live participation threshold is substantially reduced, and is in Reveal whenever and wherever possible with the whole people's agitation broadcast.The live hot breakthrough from live scene, from the fixed scene in " princess room " Move towards the entertainment fields such as game, education, finance and economics, makeups or even various trifling living scenes.Pursuing for capital market is huge with network The layout of head so that live quickly to rank among mobile Internet fresh wind port.
However, in mobile phone or panel computer live epoch, it is live to be currently limited to light engine position, and spectators are only capable of seeing all the time same One video pictures or same local video pictures of angle, it is impossible to realize that mobile phone or many seats in the plane of panel computer are simultaneously live Switching.
The content of the invention
The invention solves the problems that first technical problem be to provide a kind of audio frequency and video switching side to mobile internet device Method, the method can realize mobile phone and/or the live switching simultaneously of many seats in the plane of panel computer.
The invention solves the problems that second technical problem be to provide a kind of audio frequency and video switching to mobile internet device Cut bank, the cut bank can realize many mobile phones and/or the live switching simultaneously of many panel computers.
For method, in order to solve above-mentioned first technical problem, mobile Internet is set the invention provides a kind of Standby audio-video switching method, the method is：Receive multichannel audio-video frequency stream, to receive multichannel audio-video frequency stream difference de-embedding, Play, the output of audio/video flow all the way in the content selection multichannel audio-video frequency stream played, or, according to the content choosing played Select the audio/video flow output of multichannel audio-video frequency Liu Zhongji roads.
The audio/video flow refers to audio stream and/or video flowing.
The described pair of de-embedding of multichannel audio-video frequency stream difference, the broadcasting for receiving, refers to first according to the multichannel audio-video frequency for receiving After the capture apparatus account number of the bag in stream is shunted, then de-embedding is carried out, audio-video signal is obtained after de-embedding, by audio frequency and video Signal is used to play.
The audio-video signal refers to audio signal and/or vision signal.
The de-embedding is that the audio/video flow that will be encapsulated unseals to form audio signal and/or vision signal.
The advanced row buffering storage before de-embedding is carried out by the multichannel audio-video frequency stream after shunting, or, by shunting after it is many Road audio/video flow carries out buffer-stored again after de-embedding is carried out.
The described pair of de-embedding of multichannel audio-video frequency stream difference, the broadcasting for receiving, refers to receiving per audio frequency and video all the way Audio-video signal is formed after flowing de-embedding respectively, then the audio-video signal after de-embedding is decomposed into audio signal and vision signal, so Afterwards, play out respectively.
The output of audio/video flow all the way in the content selection multichannel audio-video frequency stream played, refers to according to broadcasting Audio/video flow output without de-embedding all the way in content selection multichannel audio-video frequency stream, or, refer to according to the content selection played The audio-video signal that the audio/video flow of de-embedding all the way in multichannel audio-video frequency stream is formed, the sound that the audio-video signal is formed through embedding Exported after video flowing, or, refer to the audio frequency and video manifold according to de-embedding all the way in the content selection multichannel audio-video frequency stream played Into audio-video signal, the audio-video signal first through play, then through embedding formed audio/video flow after export；It is described according to play The audio/video flow output of content selection multichannel audio-video frequency Liu Zhongji roads, refers to according in the content selection multichannel audio-video frequency stream played At least two-way without de-embedding audio/video flow output, or, refer to according to play content selection multichannel audio-video frequency stream at least The audio-video signal that the audio/video flow of two-way de-embedding is formed, the audio/video flow that at least two-way audio-video signal is formed through embedding Output or the successively output after the audio/video flow that integration, embedding are formed afterwards, or, refer to according to the content selection multichannel sound played The audio-video signal that the audio/video flow of video flowing Zhong Ji roads de-embedding is formed, at least two-way audio-video signal first through playing, then Output or the output after integration, embedding formation audio/video flow successively again after forming audio/video flow through embedding.
The embedding is to be encapsulated to form audio/video flow by audio signal and/or vision signal.
Vision signal in the audio-video signal is divided into transverse screen vision signal and portrait layout vision signal, the transverse screen video Signal carries out embedding with audio signal with transverse screen mode, and the portrait layout vision signal is added with audio signal with vertical screen mode It is embedding.
The transverse screen vision signal is that the vision signal to be formed is shot by transverse screen, the horizontal stroke that the transverse screen vision signal is formed Screen video image, the horizontal direction pixel quantity of the transverse screen video image is typically larger than the vertical direction of the transverse screen video image Pixel quantity, the portrait layout vision signal is that the vision signal to be formed is shot by portrait layout, what the portrait layout vision signal was formed Portrait layout video image, the horizontal direction pixel quantity of the portrait layout video image is typically smaller than the vertical side of the portrait layout video image To pixel quantity.
The audio/video flow is received and sent by wireless network.
The present invention has the advantages that compared with prior art to the audio-video switching method of mobile internet device.
1st, the technical program is solved respectively as a result of multichannel audio-video frequency stream, the multichannel audio-video frequency stream to receiving is received Embedding, broadcasting, the output of audio/video flow all the way in the content selection multichannel audio-video frequency stream played, or, in playing Hold the technological means of selection multichannel audio-video frequency Liu Zhongji roads audio/video flow output, so, it is capable of achieving mobile phone and/or panel computer Many seats in the plane live switching simultaneously, spectators can at any time see the video pictures of different angles or the video pictures of different places.
2nd, the technical program refers to the technological means of audio stream and/or video flowing, institute as a result of the audio/video flow With, the flexibility of switching audio/video flow can be greatly improved, be conducive to switching the optimal switching mode of personnel selection.
3rd, the technical program, as a result of the described pair of de-embedding of multichannel audio-video frequency stream difference, the broadcasting for receiving, refers to elder generation After capture apparatus account number according to the bag in the multichannel audio-video frequency stream for receiving is shunted, then de-embedding is carried out, after de-embedding Audio-video signal is obtained, the technological means that audio-video signal is used to play, so, it is greatly improved de-embedding efficiency.
4th, the technical program refers to the technology hand of audio signal and/or vision signal as a result of the audio-video signal Section, so, the flexibility of switching audio frequency and video can be greatly improved, be conducive to switching the optimal switching mode of personnel selection.
5th, the technical program is that the audio/video flow that will be encapsulated unseals to form audio signal as a result of the de-embedding And/or the technological means of vision signal, so, can play out monitor video picture and sound.
6th, the technical program as a result of by the multichannel audio-video frequency stream after shunting before de-embedding is carried out advanced row buffering Storage, or, the multichannel audio-video frequency stream after shunting is carried out the technology section of buffer-stored again after de-embedding is carried out, so, Be conducive to the continuous broadcasting of audio frequency and video.
7th, the technical program is received as a result of described pair multichannel audio-video frequency stream difference de-embedding, play, refer to Audio-video signal is formed per after all the way audio/video flow distinguishes de-embedding to receiving, then the audio-video signal after de-embedding is decomposed into Audio signal and vision signal, then, the technological means for playing out respectively, so, be conducive to audio signal and vision signal Between reconfigure.
8th, the technical program is regarded as a result of the sound all the way in the content selection multichannel audio-video frequency stream played Frequency stream output, refers to that the audio/video flow without de-embedding is exported all the way according in the content selection multichannel audio-video frequency stream played, or, Refer to according to the audio-video signal that the audio/video flow of de-embedding is formed all the way in the content selection multichannel audio-video frequency stream played, the sound Vision signal is exported after the audio/video flow that embedding is formed, or, refer to according in the content selection multichannel audio-video frequency stream played The audio-video signal that the audio/video flow of de-embedding is formed all the way, the audio-video signal is first through broadcasting, then forms audio frequency and video through embedding Exported after stream；It is described to be exported according to the content selection multichannel audio-video frequency Liu Zhongji roads audio/video flow played, refer to according to broadcasting Content selection multichannel audio-video frequency stream at least two-way without de-embedding audio/video flow output, or, refer to according to play in Hold the audio-video signal that the audio/video flow of at least two-way de-embedding in selection multichannel audio-video frequency stream is formed, at least two-way audio frequency and video Signal is exported or the output after the audio/video flow that integration, embedding are formed successively after the audio/video flow that embedding is formed, or, refer to The audio-video signal that audio/video flow according to the content selection multichannel audio-video frequency Liu Zhongji roads de-embedding played is formed, this at least two Road audio-video signal is first through broadcasting, then is exported after embedding formation audio/video flow or form audio frequency and video through integration, embedding successively again The technological means exported after stream, so, can be according to the actual conditions switching mode different with the selection of the demand of spectators.
9th, the technical program is to be encapsulated to form sound by audio signal and/or vision signal as a result of the embedding The technological means of video flowing, so, be conducive on the premise of audio quality and video quality is ensured to audio signal and video Signal compression coding, improves the efficiency of transmission of audio/video flow.
10th, the technical program is divided into transverse screen vision signal and erects as a result of the vision signal in the audio-video signal Screen vision signal, the transverse screen vision signal carries out embedding, the portrait layout vision signal and sound with audio signal with transverse screen mode Frequency signal carries out the technological means of embedding with vertical screen mode, so, can be in the mobile phone or the screen of panel computer for receiving audio/video flow The full screen pictures of maximum are played out on curtain.
11st, the technical program is that the vision signal to be formed is shot by transverse screen as a result of the transverse screen vision signal, The transverse screen video image that the transverse screen vision signal is formed, the horizontal direction pixel quantity of the transverse screen video image is typically larger than The vertical direction pixel quantity of the transverse screen video image, the portrait layout vision signal is that the video to be formed letter is shot by portrait layout Number, the portrait layout video image that the portrait layout vision signal is formed, the horizontal direction pixel quantity of the portrait layout video image is usual Less than the technological means of the vertical direction pixel quantity of the portrait layout video image, so, it is greatly improved image quality.
12nd, the technological means that the technical program is received as a result of the audio/video flow and sent by wireless network, So, it is convenient to mobile audio-video switches equipment.
For product, in order to solve above-mentioned second technical problem, mobile Internet is set the invention provides a kind of The cut bank of standby audio frequency and video switching, the cut bank is to exempt from embedding cut bank or embedding cut bank.
The embedding cut bank of exempting from includes audio/video flow input block, the output end and sound of the audio/video flow input block The input electrical connection of video flowing dividing cell, the output end of the audio/video flow dividing cell respectively with multiple audio/video flow solutions The input electrical connection of embedding unit, the output end of multiple audio/video flow de-embedding units is defeated with multiple audio and video playing units Enter end electrical connection, the output end of the audio/video flow dividing cell is electrically connected with the input of audio/video flow switch unit, described The output end of audio/video flow switch unit is electrically connected with the input of audio/video flow output unit；
The embedding cut bank includes audio/video flow input block, and the output end of the audio/video flow input block is regarded with sound The input electrical connection of frequency stream dividing cell, the output end of the audio/video flow dividing cell respectively with multiple audio/video flow de-embeddings The input electrical connection of unit, the output end of multiple audio/video flow de-embedding units and the input of multiple audio and video playing units End electrical connection, or, the output end of multiple audio/video flow de-embedding units is electric with the output end of multiple audio and video playing units Connection, the input of the output end of multiple audio/video flow de-embedding units with audio frequency and video switch unit is electrically connected, the sound The output end of video switch unit is electrically connected with the input of audio frequency and video embedding unit, the output end of the audio frequency and video embedding unit Input with audio/video flow output unit is electrically connected.
In embedding cut bank is exempted from, divide between the audio/video flow dividing cell and multiple audio/video flow de-embedding units It is not provided with audio frequency and video buffer cell, the output of the input of the audio frequency and video buffer cell and the audio/video flow dividing cell End electrical connection, the first output end of the audio frequency and video buffer cell is electrically connected with the input of the audio/video flow de-embedding unit, Second output end of the audio frequency and video buffer cell is electrically connected with the input of the audio frequency and video switch unit；
In embedding cut bank, between the audio/video flow dividing cell and multiple audio/video flow de-embedding units respectively It is provided with audio frequency and video buffer cell, the output end of the input of the audio frequency and video buffer cell and the audio/video flow dividing cell Electrical connection, the end that goes out of the audio frequency and video buffer cell electrically connects with the input of the audio/video flow de-embedding unit；Or, it is multiple Audio frequency and video buffer cell is respectively arranged between the audio/video flow de-embedding unit and multiple audio and video playing units, it is described The input of audio frequency and video buffer cell is electrically connected with the output end of the audio/video flow de-embedding unit, the audio frequency and video buffer cell Go out end electrically connected with the input of the audio and video playing unit.
In embedding cut bank is exempted from, the second output end of the audio frequency and video buffer cell is relative to the audio frequency and video buffer cell The first output end postpone a period of time output；
In embedding cut bank, audio frequency and video are provided between the audio frequency and video switch unit and the audio frequency and video embedding unit Integral unit, the input of the audio frequency and video integral unit is electrically connected with the output end of the audio frequency and video switch unit, the sound The output end of video integral unit is electrically connected with the input of the audio frequency and video embedding unit.
Audio frequency and video resolving cell is provided between the audio/video flow de-embedding unit and the audio and video playing unit, it is described Audio and video playing unit decomposition is audio playing unit and video playback unit, the input of the audio frequency and video resolving cell and institute The output end electrical connection of audio/video flow de-embedding unit is stated, audio output and the audio of the audio frequency and video resolving cell are played The audio input end electrical connection of unit, the video of the video output terminals of the audio frequency and video resolving cell and the video playback unit Input is electrically connected, and the audio input end of the audio frequency and video switch unit is electric with the audio output of the audio frequency and video resolving cell Connection, the video inputs of the audio frequency and video switch unit are electrically connected with the video output terminals of the audio frequency and video resolving cell, or Person, the audio input end of the audio frequency and video switch unit is electrically connected with the audio output of the audio playing unit, the sound The video inputs of video switch unit are electrically connected with the video output terminals of the video playback unit.
Set between the audio output of the audio frequency and video resolving cell and the audio input end of the audio playing unit There is Audio Buffer unit, the audio input end of the Audio Buffer unit is electric with the audio output of the audio frequency and video resolving cell Connection, the audio output of the Audio Buffer unit is electrically connected with the audio input end of the audio playing unit, the sound Video buffer unit is provided between the video inputs of the video output terminals of video resolving cell and the video playback unit, The video inputs of the video buffer unit are electrically connected with the video output terminals of the audio frequency and video resolving cell, and the video delays The video output terminals for rushing unit are electrically connected with the video inputs of the video playback unit.
The audio input end of the audio frequency and video switch unit is electrically connected with the audio output of the Audio Buffer unit, institute The video inputs for stating video switch unit are electrically connected with the video output terminals of the video buffer unit.
The audio frequency and video embedding unit includes transverse screen audio frequency and video embedding subelement and portrait layout audio frequency and video embedding subelement.
The present invention has following beneficial compared with prior art to the cut bank of the audio frequency and video switching of mobile internet device Effect.
1st, the technical program is the technological means for exempting from embedding cut bank or embedding cut bank as a result of the cut bank, So, mobile phone and/or the live switching simultaneously of many seats in the plane of panel computer can be realized using cut bank, spectators can at any time see difference The video pictures of angle or the video pictures of different places.
2nd, the technical program includes audio/video flow input block, the audio frequency and video as a result of the embedding cut bank of exempting from The output end for flowing input block is electrically connected with the input of audio/video flow dividing cell, the output of the audio/video flow dividing cell Hold input respectively with multiple audio/video flow de-embedding units electrically connect, the output end of multiple audio/video flow de-embedding units and The input electrical connection of multiple audio and video playing units, output end and the audio/video flow of the audio/video flow dividing cell switch list The input electrical connection of unit, the output end of the audio/video flow switch unit is electrically connected with the input of audio/video flow output unit Technological means, so, advantageously reduce the manufacturing cost of cut bank.When defeated including audio/video flow using the embedding cut bank Enter unit, the output end of the audio/video flow input block is electrically connected with the input of audio/video flow dividing cell, and the sound is regarded Input of the output end of frequency stream dividing cell respectively with multiple audio/video flow de-embedding units is electrically connected, multiple audio/video flows The output end of de-embedding unit is electrically connected with the input of multiple audio and video playing units, or, multiple audio/video flow de-embeddings The output end of unit is electrically connected with the output end of multiple audio and video playing units, the output of multiple audio/video flow de-embedding units The input with audio frequency and video switch unit is held to electrically connect, output end and the audio frequency and video embedding unit of the audio frequency and video switch unit Input electrical connection, the skill that the output end of the audio frequency and video embedding unit is electrically connected with the input of audio/video flow output unit During art means, be then conducive to the flexible switching to audio frequency and video.
3rd, the technical program is as a result of in embedding cut bank is exempted from, the audio/video flow dividing cell with described in multiple Be respectively arranged with audio frequency and video buffer cell between audio/video flow de-embedding unit, the input of the audio frequency and video buffer cell with it is described The output end electrical connection of audio/video flow dividing cell, the first output end of the audio frequency and video buffer cell and the audio/video flow solution The input electrical connection of embedding unit, the input of the second output end of the audio frequency and video buffer cell and the audio frequency and video switch unit End electrical connection；In embedding cut bank, divide between the audio/video flow dividing cell and multiple audio/video flow de-embedding units It is not provided with audio frequency and video buffer cell, the output of the input of the audio frequency and video buffer cell and the audio/video flow dividing cell End electrical connection, the end that goes out of the audio frequency and video buffer cell electrically connects with the input of the audio/video flow de-embedding unit；Or, it is many Audio frequency and video buffer cell, institute are respectively arranged between the individual audio/video flow de-embedding unit and multiple audio and video playing units The input for stating audio frequency and video buffer cell is electrically connected with the output end of the audio/video flow de-embedding unit, and the audio frequency and video buffering is single Unit goes out the technological means that end electrically connects with the input of the audio and video playing unit, so, be conducive to the continuous of audio frequency and video Play.
4th, the technical program is as a result of in embedding cut bank is exempted from, the second output end of the audio frequency and video buffer cell Relative to the technological means that the first output end of the audio frequency and video buffer cell postpones a period of time output, so, be conducive to sound to regard The accurate switching of frequency stream.When using in embedding cut bank, the audio frequency and video switch unit and the audio frequency and video embedding unit it Between be provided with audio frequency and video integral unit, the output end of the input of the audio frequency and video integral unit and the audio frequency and video switch unit Electrical connection, the technological means that the output end of the audio frequency and video integral unit is electrically connected with the input of the audio frequency and video embedding unit When, then be conducive to many video frequency outputs and flexibly switching.
5th, the technical program sets as a result of between the audio/video flow de-embedding unit and the audio and video playing unit Audio frequency and video resolving cell is equipped with, the audio and video playing unit decomposition is audio playing unit and video playback unit, the sound The input of video resolving cell is electrically connected with the output end of the audio/video flow de-embedding unit, the audio frequency and video resolving cell Audio output is electrically connected with the audio input end of the audio playing unit, the video output terminals of the audio frequency and video resolving cell Video inputs with the video playback unit are electrically connected, and audio input end and the sound of the audio frequency and video switch unit are regarded The audio output electrical connection of frequency resolving cell, video inputs and the audio frequency and video of the audio frequency and video switch unit decompose single The video output terminals electrical connection of unit, or, audio input end and the audio playing unit of the audio frequency and video switch unit Audio output is electrically connected, the video output terminals of the video inputs of the audio frequency and video switch unit and the video playback unit The technological means of electrical connection, so, be conducive to reconfiguring between audio signal and vision signal.
6th, the technical program plays single as a result of the audio output of the audio frequency and video resolving cell with the audio Audio Buffer unit, audio input end and the audio frequency and video of the Audio Buffer unit are provided between the audio input end of unit The audio output electrical connection of resolving cell, the audio output of the Audio Buffer unit and the sound of the audio playing unit Frequency input terminal is electrically connected, the video inputs of the video output terminals of the audio frequency and video resolving cell and the video playback unit it Between be provided with video buffer unit, the video inputs of the video buffer unit are defeated with the video of the audio frequency and video resolving cell Go out end electrical connection, the video output terminals of the video buffer unit are electrically connected with the video inputs of the video playback unit Technological means, so, be conducive to the continuous broadcasting of Voice ＆ Video.
7th, audio input end and the Audio Buffer list of the technical program as a result of the audio frequency and video switch unit The audio output electrical connection of unit, the video frequency output of the video inputs of the video switch unit and the video buffer unit The technological means of electrical connection is held, so, be conducive to the continuous broadcasting of Voice ＆ Video.
8th, the technical program includes transverse screen audio frequency and video embedding subelement and erects as a result of the audio frequency and video embedding unit Shielding the technological means of audio frequency and video embedding subelement, so, can be broadcast on the mobile phone or the screen of panel computer for receiving audio/video flow Release maximum full screen pictures.
Brief description of the drawings
Further detailed is made to changing method of the invention and its cut bank with reference to the accompanying drawings and detailed description Description.
Fig. 1 be the present invention the first exempt from the principle and structural representation of embedding cut bank.
Fig. 2 is the principle and structural representation that the present invention exempts from embedding cut bank for second.
Fig. 3 is the principle and structural representation of the first embedding cut bank of the invention.
Fig. 4 is the principle and structural representation of second embedding cut bank of the invention.
Fig. 5 is the principle and structural representation of the third embedding cut bank of the invention.
Fig. 6 is the principle and structural representation of the 4th kind of embedding cut bank of the present invention.
Fig. 7 is the principle and structural representation of the 5th kind of embedding cut bank of the present invention.
Fig. 8 is the principle and structural representation of the 6th kind of embedding cut bank of the present invention.
Fig. 9 is the schematic diagram that transverse screen shoots video image.
Figure 10 is the first transverse screen viewing video image schematic diagram (transverse screen for maximum shoots video image).
Figure 11 is second transverse screen viewing video image schematic diagram (four small transverse screens shoot video image).
Figure 12 is the first portrait layout viewing video image schematic diagram (a small transverse screen shoots video image).
Figure 13 is second portrait layout viewing video image schematic diagram (three small transverse screens shoot video image).
Figure 14 is that (a small transverse screen shoots video image and one small for the third portrait layout viewing video image schematic diagram Portrait layout shoots video image).
Figure 15 is the schematic diagram that portrait layout shoots video image.
Figure 16 is the first portrait layout viewing video image schematic diagram (portrait layout for maximum shoots video image).
Figure 17 is second portrait layout viewing video image schematic diagram (four small portrait layouts shoot video image).
Figure 18 is the first transverse screen viewing video image schematic diagram (a small portrait layout shoots video image).
Figure 19 is second transverse screen viewing video image schematic diagram (three small portrait layouts shoot video image).
Figure 20 is that (a small portrait layout shoots video image and one small for the third transverse screen viewing video image schematic diagram Transverse screen shoots video image).
Specific embodiment
As shown in Figures 1 to 8, present embodiment provides a kind of audio-video switching method to mobile internet device.Side Method is：Multichannel audio-video frequency stream is received, the de-embedding of multichannel audio-video frequency stream difference, broadcasting to receiving, according to the content selection played The output of audio/video flow all the way in multichannel audio-video frequency stream, or, according to the content selection multichannel audio-video frequency Liu Zhongji roads played Audio/video flow is exported.
Present embodiment as a result of receive multichannel audio-video frequency stream, to receive multichannel audio-video frequency stream difference de-embedding, Play, the output of audio/video flow all the way in the content selection multichannel audio-video frequency stream played, or, according to the content choosing played The technological means of multichannel audio-video frequency Liu Zhongji roads audio/video flow output is selected, so, it is capable of achieving mobile phone and/or panel computer multimachine Position live switching simultaneously, spectators can at any time see the video pictures of different angles or the video pictures of different places.
As present embodiment the first step improve, as shown in Figures 1 to 8, the audio/video flow refer to audio stream and/or Video flowing.
Present embodiment as a result of the technological means that the audio/video flow refers to audio stream and/or video flowing, so, The flexibility of switching audio/video flow can be greatly improved, is conducive to switching the optimal switching mode of personnel selection.
Improved as the second step of present embodiment, as shown in Figures 1 to 8, the described pair of multichannel audio-video frequency stream for receiving De-embedding, broadcasting respectively, refers to first to be shunted according to the capture apparatus account number of the bag in the multichannel audio-video frequency stream for receiving Afterwards, then de-embedding is carried out, audio-video signal is obtained after de-embedding, audio-video signal is used to play.
Multichannel audio-video frequency stream difference de-embedding that present embodiment is received as a result of described pair, play, refer to first by According to the bag in the multichannel audio-video frequency stream for receiving capture apparatus account number shunted after, then de-embedding is carried out, after de-embedding To audio-video signal, audio-video signal to be used for the technological means of broadcasting, so, it is greatly improved de-embedding efficiency.
Improved as the 3rd step of present embodiment, as shown in Figures 1 to 8, the audio-video signal refers to audio signal And/or vision signal.
Present embodiment is as a result of the technology hand that the audio-video signal refers to audio signal and/or vision signal Section, so, the flexibility of switching audio frequency and video can be greatly improved, be conducive to switching the optimal switching mode of personnel selection.
Improved as the 4th step of present embodiment, as shown in Figures 1 to 8, the de-embedding is that the sound that will be encapsulated is regarded Frequency stream deblocking forms audio signal and/or vision signal.
Present embodiment as a result of the de-embedding be the audio/video flow that will be encapsulated unseal to be formed audio signal and/ Or the technological means of vision signal, so, can play out monitor video picture and sound.
Improved as the 5th step of present embodiment, as shown in Fig. 2 the multichannel audio-video frequency stream after shunting is being carried out into de-embedding Advanced row buffering storage before.It is of course also possible to be as shown in figure 5, by the multichannel audio-video frequency stream after shunting carry out de-embedding it Carry out buffer-stored again afterwards.
Present embodiment as a result of by the multichannel audio-video frequency stream after shunting, deposit before de-embedding is carried out by advanced row buffering Storage, or, the multichannel audio-video frequency stream after shunting is carried out the technology section of buffer-stored again after de-embedding is carried out, so, have Beneficial to the continuous broadcasting of audio frequency and video.
Improved as the 6th step of present embodiment, as shown in Figure 6 to 8, the described pair of multichannel audio-video frequency stream for receiving Respectively de-embedding, play, refer to receiving per forming audio-video signal after audio/video flow distinguishes de-embedding all the way, then by de-embedding Audio-video signal afterwards is decomposed into audio signal and vision signal, then, plays out respectively.
Present embodiment, as a result of the described pair of de-embedding of multichannel audio-video frequency stream difference, the broadcasting for receiving, refers to right What is received forms audio-video signal per audio/video flow all the way after distinguishing de-embedding, then the audio-video signal after de-embedding is decomposed into sound Frequency signal and vision signal, then, the technological means for playing out respectively, so, be conducive to audio signal and vision signal it Between reconfigure.
Improved as the 7th step of present embodiment, it is as shown in Figures 1 to 8, described according to the content selection multichannel played In audio/video flow audio/video flow all the way output, refer to according to play content selection multichannel audio-video frequency stream in all the way without de-embedding Audio/video flow output, or, refer to the audio/video flow according to de-embedding all the way in the content selection multichannel audio-video frequency stream played The audio-video signal of formation, the audio-video signal is exported after the audio/video flow that embedding is formed, or, refer to according in broadcasting The audio-video signal that the audio/video flow of de-embedding is formed all the way in appearance selection multichannel audio-video frequency stream, the audio-video signal is first through broadcasting Put, then exported after embedding formation audio/video flow；It is described to be regarded according to the content selection multichannel audio-video frequency Liu Zhongji roads sound played Frequency stream output, refers to be exported according at least audio/video flow of the two-way without de-embedding in the content selection multichannel audio-video frequency stream played, Or, refer to according to the audio frequency and video that at least audio/video flow of two-way de-embedding is formed in the content selection multichannel audio-video frequency stream played Signal, the sound that at least two-way audio-video signal is exported after the audio/video flow that embedding is formed or formed through integration, embedding successively Exported after video flowing, or, refer to the audio frequency and video manifold according to the content selection multichannel audio-video frequency Liu Zhongji roads de-embedding played Into audio-video signal, this at least two-way audio-video signal first through play, then through embedding formed audio/video flow after output or again according to It is secondary to be exported after integration, embedding formation audio/video flow.
Present embodiment is as a result of the audio frequency and video all the way in the content selection multichannel audio-video frequency stream played Stream output, refers to that the audio/video flow without de-embedding is exported all the way according in the content selection multichannel audio-video frequency stream played, or, it is Refer to that, according to the audio-video signal that the audio/video flow of de-embedding is formed all the way in the content selection multichannel audio-video frequency stream played, the sound is regarded Frequency signal is exported after the audio/video flow that embedding is formed, or, refer to according to one in the content selection multichannel audio-video frequency stream played The audio-video signal that the audio/video flow of road de-embedding is formed, the audio-video signal is first through broadcasting, then forms audio/video flow through embedding After export；It is described to be exported according to the content selection multichannel audio-video frequency Liu Zhongji roads audio/video flow played, refer to according to broadcasting At least audio/video flow output of the two-way without de-embedding in content selection multichannel audio-video frequency stream, or, refer to according to the content played The audio-video signal that the audio/video flow of at least two-way de-embedding is formed in selection multichannel audio-video frequency stream, at least two-way audio frequency and video are believed Number through embedding formed audio/video flow after output or successively through integrate, embedding formed audio/video flow after export, or, refer to root According to the audio-video signal that the audio/video flow of the content selection multichannel audio-video frequency Liu Zhongji roads de-embedding played is formed, at least two-way Audio-video signal is first through broadcasting, then is exported after embedding formation audio/video flow or form audio/video flow through integration, embedding successively again The technological means for exporting afterwards, so, can be according to the actual conditions switching mode different with the selection of the demand of spectators.
Improved as the 8th step of present embodiment, as shown in Figures 3 to 8, the embedding is by audio signal and/or regards Frequency signal assemble gets up to form audio/video flow.
Present embodiment is to be encapsulated audio signal and/or vision signal to form sound and regard as a result of the embedding The technological means of frequency stream, so, be conducive to believing audio signal and video on the premise of audio quality and video quality is ensured Number compressed encoding, improves the efficiency of transmission of audio/video flow.
Improved as the 9th step of present embodiment, as shown in Fig. 9 to Figure 10 and Figure 15 to Figure 16, the audio-video signal In vision signal be divided into transverse screen vision signal and portrait layout vision signal, the transverse screen vision signal is with audio signal with transverse screen mould Formula carries out embedding, and the portrait layout vision signal carries out embedding with audio signal with vertical screen mode.
Present embodiment is divided into transverse screen vision signal and portrait layout as a result of the vision signal in the audio-video signal Vision signal, the transverse screen vision signal carries out embedding, the portrait layout vision signal and audio with audio signal with transverse screen mode Signal carries out the technological means of embedding with vertical screen mode, so, can be in the mobile phone or the screen of panel computer for receiving audio/video flow On play out maximum full screen pictures.
Improved as the tenth step of present embodiment, as shown in Fig. 9 to Figure 20, the transverse screen vision signal is by transverse screen Shoot the vision signal for being formed, the transverse screen video image that the transverse screen vision signal is formed, the level of the transverse screen video image Direction pixel quantity is typically larger than the vertical direction pixel quantity of the transverse screen video image, and the portrait layout vision signal is by perpendicular Screen shoots the vision signal for being formed, the portrait layout video image that the portrait layout vision signal is formed, the water of the portrait layout video image The vertical direction pixel quantity of the portrait layout video image square is typically smaller than to pixel quantity.
Present embodiment is that the vision signal to be formed is shot by transverse screen as a result of the transverse screen vision signal, described The transverse screen video image that transverse screen vision signal is formed, the horizontal direction pixel quantity of the transverse screen video image is typically larger than the horizontal stroke Shield the vertical direction pixel quantity of video image, the portrait layout vision signal is that the vision signal to be formed is shot by portrait layout, institute The portrait layout video image of portrait layout vision signal formation is stated, the horizontal direction pixel quantity of the portrait layout video image is typically smaller than this The technological means of the vertical direction pixel quantity of portrait layout video image, so, it is greatly improved image quality.
Improved as the 11st step of present embodiment, as shown in Fig. 9 to Figure 20, the audio/video flow passes through wireless network Receive and send.
The technological means that present embodiment is received as a result of the audio/video flow and sent by wireless network, institute With, it is convenient to mobile audio-video switches equipment.
As shown in Figures 1 to 8, present embodiments provide for a kind of switching of the audio frequency and video switching to mobile internet device Platform, the cut bank is to exempt from embedding cut bank or embedding cut bank.
Present embodiment is the technological means for exempting from embedding cut bank or embedding cut bank, institute as a result of the cut bank With, mobile phone and/or the live switching simultaneously of many seats in the plane of panel computer can be realized using cut bank, spectators can at any time see different angles The video pictures of degree or the video pictures of different places.
Improved as the first step of present embodiment, as shown in figure 1, the embedding cut bank of exempting from is input into including audio/video flow Unit, the output end of the audio/video flow input block is electrically connected with the input of audio/video flow dividing cell, the audio frequency and video Flow input of the output end of dividing cell respectively with multiple audio/video flow de-embedding units to electrically connect, multiple audio/video flow solutions The output end of embedding unit is electrically connected with the input of multiple audio and video playing units, the output end of the audio/video flow dividing cell Input with audio/video flow switch unit is electrically connected, and output end and the audio/video flow of the audio/video flow switch unit export single The input electrical connection of unit.
As shown in figure 3, the embedding cut bank include audio/video flow input block, the audio/video flow input block it is defeated Go out end to be electrically connected with the input of audio/video flow dividing cell, the output end of the audio/video flow dividing cell respectively with multiple sounds The input electrical connection of video flowing de-embedding unit, the output end of multiple audio/video flow de-embedding units and multiple audio and video playings The input electrical connection of unit, or, output end and the multiple audio and video playing units of multiple audio/video flow de-embedding units Output end electrical connection, the input of the output end of multiple audio/video flow de-embedding units with audio frequency and video switch unit is electrically connected Connect, the output end of the audio frequency and video switch unit is electrically connected with the input of audio frequency and video embedding unit, the audio frequency and video embedding list The output end of unit is electrically connected with the input of audio/video flow output unit.
Present embodiment includes audio/video flow input block, the audio/video flow as a result of the embedding cut bank of exempting from The output end of input block is electrically connected with the input of audio/video flow dividing cell, the output end of the audio/video flow dividing cell The input with multiple audio/video flow de-embedding units is electrically connected respectively, the output end of multiple audio/video flow de-embedding units with it is many The input electrical connection of individual audio and video playing unit, output end and the audio/video flow switch unit of the audio/video flow dividing cell Input electrical connection, what the output end of the audio/video flow switch unit was electrically connected with the input of audio/video flow output unit Technological means, so, advantageously reduce the manufacturing cost of cut bank.It is input into including audio/video flow when using the embedding cut bank Unit, the output end of the audio/video flow input block is electrically connected with the input of audio/video flow dividing cell, the audio frequency and video Flow input of the output end of dividing cell respectively with multiple audio/video flow de-embedding units to electrically connect, multiple audio/video flow solutions The output end of embedding unit is electrically connected with the input of multiple audio and video playing units, or, multiple audio/video flow de-embedding lists The output end of unit is electrically connected with the output end of multiple audio and video playing units, the output end of multiple audio/video flow de-embedding units Input with audio frequency and video switch unit is electrically connected, output end and the audio frequency and video embedding unit of the audio frequency and video switch unit Input is electrically connected, the technology that the output end of the audio frequency and video embedding unit is electrically connected with the input of audio/video flow output unit During means, be then conducive to the flexible switching to audio frequency and video.
Improved as the second step of present embodiment, as shown in Fig. 2 in embedding cut bank is exempted from, the audio frequency and video flow point Audio frequency and video buffer cell is respectively arranged between stream unit and multiple audio/video flow de-embedding units, the audio frequency and video buffering is single The input of unit is electrically connected with the output end of the audio/video flow dividing cell, the first output end of the audio frequency and video buffer cell Input with the audio/video flow de-embedding unit is electrically connected, and the second output end and the sound of the audio frequency and video buffer cell are regarded The input electrical connection of frequency switch unit.
As shown in figure 4, in embedding cut bank, the audio/video flow dividing cell and multiple audio/video flow de-embedding lists Audio frequency and video buffer cell is respectively arranged between unit, the input and the audio/video flow of the audio frequency and video buffer cell shunt list The output end electrical connection of unit, the end that goes out of the audio frequency and video buffer cell is electrically connected with the input of the audio/video flow de-embedding unit Connect.It is of course also possible to be as shown in figure 5, multiple audio/video flow de-embedding units and multiple audio and video playing units it Between be respectively arranged with audio frequency and video buffer cell, the input of the audio frequency and video buffer cell and the audio/video flow de-embedding unit Output end is electrically connected, and the end that goes out of the audio frequency and video buffer cell electrically connects with the input of the audio and video playing unit.
Present embodiment as a result of in embedding cut bank is exempted from, the audio/video flow dividing cell and multiple sounds Audio frequency and video buffer cell, input and the sound of the audio frequency and video buffer cell are respectively arranged between video flowing de-embedding unit The output end electrical connection of video flowing dividing cell, the first output end of the audio frequency and video buffer cell and the audio/video flow de-embedding The input electrical connection of unit, the input of the second output end of the audio frequency and video buffer cell and the audio frequency and video switch unit Electrical connection；In embedding cut bank, between the audio/video flow dividing cell and multiple audio/video flow de-embedding units respectively It is provided with audio frequency and video buffer cell, the output end of the input of the audio frequency and video buffer cell and the audio/video flow dividing cell Electrical connection, the end that goes out of the audio frequency and video buffer cell electrically connects with the input of the audio/video flow de-embedding unit；Or, it is multiple Audio frequency and video buffer cell is respectively arranged between the audio/video flow de-embedding unit and multiple audio and video playing units, it is described The input of audio frequency and video buffer cell is electrically connected with the output end of the audio/video flow de-embedding unit, the audio frequency and video buffer cell Go out the technological means that electrically connect with the input of the audio and video playing unit of end, so, be conducive to continuously broadcasting for audio frequency and video Put.
Improved as the 3rd step of present embodiment, as shown in Fig. 2 in embedding cut bank is exempted from, the audio frequency and video buffering Second output end of unit postpones a period of time output relative to the first output end of the audio frequency and video buffer cell.
As shown in Fig. 4 to Fig. 8, in embedding cut bank, the audio frequency and video switch unit and the audio frequency and video embedding unit Between be provided with audio frequency and video integral unit, the output of the input of the audio frequency and video integral unit and the audio frequency and video switch unit End electrical connection, the output end of the audio frequency and video integral unit is electrically connected with the input of the audio frequency and video embedding unit.
Present embodiment as a result of in embedding cut bank is exempted from, the second output end phase of the audio frequency and video buffer cell For the technological means that the first output end of the audio frequency and video buffer cell postpones a period of time output, so, be conducive to audio frequency and video The accurate switching of stream.When use is in embedding cut bank, between the audio frequency and video switch unit and the audio frequency and video embedding unit Audio frequency and video integral unit is provided with, the input of the audio frequency and video integral unit is electric with the output end of the audio frequency and video switch unit Connection, the technological means that the output end of the audio frequency and video integral unit is electrically connected with the input of the audio frequency and video embedding unit When, then be conducive to many video frequency outputs and flexibly switching.
Improved as the 4th step of present embodiment, as shown in fig. 6, the audio/video flow de-embedding unit and the audio frequency and video Audio frequency and video resolving cell is provided between broadcast unit, the audio and video playing unit decomposition is that audio playing unit and video are broadcast Unit is put, the input of the audio frequency and video resolving cell is electrically connected with the output end of the audio/video flow de-embedding unit, the sound The audio output of video resolving cell is electrically connected with the audio input end of the audio playing unit, and the audio frequency and video are decomposed single The video output terminals of unit are electrically connected with the video inputs of the video playback unit, and the audio of the audio frequency and video switch unit is defeated Enter end to be electrically connected with the audio output of the audio frequency and video resolving cell, the video inputs of the audio frequency and video switch unit and institute State audio frequency and video resolving cell video output terminals electrical connection, or, the audio input end of the audio frequency and video switch unit with it is described The audio output electrical connection of audio playing unit, the video inputs of the audio frequency and video switch unit and the video playback list The video output terminals electrical connection of unit.
Present embodiment is set as a result of between the audio/video flow de-embedding unit and the audio and video playing unit There is audio frequency and video resolving cell, the audio and video playing unit decomposition is audio playing unit and video playback unit, and the sound is regarded The input of frequency resolving cell is electrically connected with the output end of the audio/video flow de-embedding unit, the sound of the audio frequency and video resolving cell Frequency output end is electrically connected with the audio input end of the audio playing unit, the video output terminals of the audio frequency and video resolving cell with The video inputs electrical connection of the video playback unit, audio input end and the audio frequency and video of the audio frequency and video switch unit The audio output electrical connection of resolving cell, the video inputs of the audio frequency and video switch unit and the audio frequency and video resolving cell Video output terminals electrical connection, or, the audio input end of the audio frequency and video switch unit and the sound of the audio playing unit Frequency output end is electrically connected, and the video inputs of the audio frequency and video switch unit are electric with the video output terminals of the video playback unit The technological means of connection, so, be conducive to reconfiguring between audio signal and vision signal.
Improved as the 5th step of present embodiment, as shown in Fig. 7 to Fig. 8, the audio of the audio frequency and video resolving cell is defeated Go out between end and the audio input end of the audio playing unit and be provided with Audio Buffer unit, the sound of the Audio Buffer unit Frequency input terminal is electrically connected with the audio output of the audio frequency and video resolving cell, the audio output of the Audio Buffer unit with The audio input end electrical connection of the audio playing unit, video output terminals and the video of the audio frequency and video resolving cell are broadcast Video buffer unit, video inputs and the sound of the video buffer unit are provided between the video inputs for putting unit The video output terminals electrical connection of video resolving cell, the video output terminals of the video buffer unit and the video playback unit Video inputs electrical connection.
Audio output and the audio playing unit of the present embodiment as a result of the audio frequency and video resolving cell Audio input end between be provided with Audio Buffer unit, the audio input end and the audio frequency and video point of the Audio Buffer unit Solve the audio output electrical connection of unit, the audio output of the Audio Buffer unit and the audio of the audio playing unit Input is electrically connected, between the video output terminals of the audio frequency and video resolving cell and the video inputs of the video playback unit It is provided with video buffer unit, the video frequency output of the video inputs of the video buffer unit and the audio frequency and video resolving cell End electrical connection, the skill that the video output terminals of the video buffer unit are electrically connected with the video inputs of the video playback unit Art means, so, be conducive to the continuous broadcasting of Voice ＆ Video.
As present embodiment the 6th step improve, as shown in fig. 7, the audio input end of the audio frequency and video switch unit with The audio output electrical connection of the Audio Buffer unit, video inputs and the video buffer of the video switch unit The video output terminals electrical connection of unit.
Audio input end and the Audio Buffer unit of the present embodiment as a result of the audio frequency and video switch unit Audio output electrical connection, the video output terminals of the video inputs of the video switch unit and the video buffer unit The technological means of electrical connection, so, be conducive to the continuous broadcasting of Voice ＆ Video.
Improved as the 7th step of present embodiment, as shown in Fig. 5 to Fig. 8, the audio frequency and video embedding unit includes transverse screen Audio frequency and video embedding subelement and portrait layout audio frequency and video embedding subelement.
Present embodiment includes transverse screen audio frequency and video embedding subelement and portrait layout as a result of the audio frequency and video embedding unit The technological means of audio frequency and video embedding subelement, so, can be played on the mobile phone or the screen of panel computer for receiving audio/video flow Go out the full screen pictures of maximum.
After embedding cut bank receives multichannel transverse screen audio/video flow as shown in Figure 9, multichannel sound is obtained through shunting, de-embedding Frequency and transverse screen video, MCVF multichannel voice frequency and transverse screen video are played out, according to audio and transverse screen the video pictures selection one played Road audio and transverse screen video are switched over, then the audio that will switch out and transverse screen video, and embedding is carried out with transverse screen mode, form horizontal Screen audio/video flow, pushes transverse screen audio/video flow to live platform, and it is live that spectators just can receive this by mobile phone or panel computer The transverse screen audio/video flow of platform just can watch transverse screen video as shown in Figure 10 after de-embedding with transverse screen.Now, spectators can be with See the transverse screen video image of maximum.Spectators can also watch less transverse screen video as shown in figure 12 by mobile phones transverse screen.When So, embedding cut bank can also be cut according to audio and transverse screen video pictures the selection MCVF multichannel voice frequency played and transverse screen video Change, first is integrated in MCVF multichannel voice frequency and transverse screen video and carry out again embedding formation integration transverse screen audio/video flow, transverse screen sound will be integrated Video flowing pushes live platform to, and spectators can watch multiple less transverse screen videos as shown in figure 11, also may be used by mobile phones transverse screen Multiple less transverse screen videos as shown in figure 13 are watched with by mobile phone portrait layout.
After embedding cut bank receives multichannel portrait layout audio/video flow as shown in figure 15, multichannel is obtained through shunting, de-embedding Audio and portrait layout video, MCVF multichannel voice frequency and portrait layout video are played out, according to audio and portrait layout the video pictures selection played Audio and portrait layout video are switched over all the way, then the audio that will switch out and portrait layout video, and embedding is carried out with vertical screen mode, are formed Portrait layout audio/video flow, pushes portrait layout audio/video flow to live platform, and it is straight that spectators just can receive this by mobile phone or panel computer The portrait layout audio/video flow for broadcasting platform just can watch portrait layout video as shown in figure 16 after de-embedding with portrait layout.Now, Guan Zhongke To see the portrait layout video image of maximum.Spectators can also watch less portrait layout video as shown in figure 18 by mobile phones transverse screen. Certainly, embedding cut bank can also be cut according to audio and portrait layout video pictures the selection MCVF multichannel voice frequency played and portrait layout video Change, first is integrated in MCVF multichannel voice frequency and portrait layout video and carry out again embedding formation integration portrait layout audio/video flow, portrait layout sound will be integrated Video flowing pushes live platform to, and spectators can watch multiple less portrait layout videos as shown in figure 17, also may be used by mobile phone portrait layout Multiple less portrait layout videos as shown in figure 19 are watched with by mobile phones transverse screen.
Similarly, when embedding cut bank receives multichannel transverse screen audio/video flow as shown in Figure 9 and multichannel is as shown in figure 15 After portrait layout audio/video flow, MCVF multichannel voice frequency and transverse screen video and MCVF multichannel voice frequency and portrait layout video are obtained through shunting, de-embedding, by multichannel Audio and portrait layout video and MCVF multichannel voice frequency and portrait layout video are played out, according to the audio and transverse screen video pictures played and Audio and portrait layout video pictures select audio and transverse screen video all the way and audio and portrait layout video are switched over all the way, then will cut After the audio all the way and transverse screen video that swap out and all the way audio and transverse screen video are integrated with vertical screen mode, carried out with vertical screen mode Embedding, forms portrait layout audio/video flow, pushes portrait layout audio/video flow to live platform, and spectators just can be by mobile phone or panel computer The portrait layout audio/video flow for receiving the live platform just can watch portrait layout video as shown in figure 14 after de-embedding with portrait layout.
When embedding cut bank receives multichannel transverse screen audio/video flow as shown in Figure 9 and multichannel portrait layout sound as shown in figure 15 After video flowing, MCVF multichannel voice frequency and transverse screen video and MCVF multichannel voice frequency and portrait layout video are obtained through shunting, de-embedding, by MCVF multichannel voice frequency and Portrait layout video and MCVF multichannel voice frequency and portrait layout video are played out, according to the audio and transverse screen video pictures and audio played and The selection of portrait layout video pictures audio and transverse screen video and audio and portrait layout video are switched over all the way all the way, then will switch out Audio and transverse screen video and after audio and transverse screen video are integrated with transverse screen mode all the way, embedding is carried out with transverse screen mode all the way, Transverse screen audio/video flow is formed, pushes transverse screen audio/video flow to live platform, spectators can just be received by mobile phone or panel computer The transverse screen audio/video flow of the live platform just can watch transverse screen video as shown in figure 20 after de-embedding with transverse screen.

Claims (10)

1. a kind of audio-video switching method to mobile internet device, it is characterised in that：Multichannel audio-video frequency stream is received, to receiving The de-embedding of multichannel audio-video frequency stream difference, the broadcasting arrived, according to the audio/video flow all the way in the content selection multichannel audio-video frequency stream played Output, or, according to the content selection multichannel audio-video frequency Liu Zhongji roads audio/video flow output played.
2. the audio-video switching method to mobile internet device according to claim 1, it is characterised in that：The sound is regarded Frequency stream refers to audio stream and/or video flowing.
3. the audio-video switching method to mobile internet device according to claim 1, it is characterised in that：The docking The de-embedding of multichannel audio-video frequency stream difference, the broadcasting for receiving, refer to first to be set according to the shooting of the bag in the multichannel audio-video frequency stream for receiving After standby account number is shunted, then de-embedding is carried out, audio-video signal is obtained after de-embedding, audio-video signal is used to play；
The audio-video signal refers to audio signal and/or vision signal；
The de-embedding is that the audio/video flow that will be encapsulated unseals to form audio signal and/or vision signal；
The advanced row buffering storage before de-embedding is carried out by the multichannel audio-video frequency stream after shunting, or, by the multichannel sound after shunting Video flowing carries out buffer-stored again after de-embedding is carried out.
4. the audio-video switching method to mobile internet device according to claim 1, it is characterised in that：The docking The de-embedding of multichannel audio-video frequency stream difference, the broadcasting for receiving, refer to be formed after to receiving per the difference de-embedding of audio/video flow all the way Audio-video signal, then the audio-video signal after de-embedding is decomposed into audio signal and vision signal, then, play out respectively；
The output of audio/video flow all the way in the content selection multichannel audio-video frequency stream played, refers to according to the content played Audio/video flow output without de-embedding all the way in selection multichannel audio-video frequency stream, or, refer to according to the content selection multichannel played The audio-video signal that the audio/video flow of de-embedding all the way in audio/video flow is formed, the audio frequency and video that the audio-video signal is formed through embedding Exported after stream, or, refer to that the audio/video flow of de-embedding is formed all the way according in the content selection multichannel audio-video frequency stream played Audio-video signal, the audio-video signal is exported first through broadcasting, then after embedding formation audio/video flow；The content according to broadcasting The audio/video flow output of selection multichannel audio-video frequency Liu Zhongji roads, refer to according in the content selection multichannel audio-video frequency stream played at least Audio/video flow output of the two-way without de-embedding, or, refer to according at least two-way in the content selection multichannel audio-video frequency stream played The audio-video signal that the audio/video flow of de-embedding is formed, at least two-way audio-video signal is defeated after the audio/video flow that embedding is formed Go out or the output after the audio/video flow that integration, embedding are formed successively, or, refer to according to the content selection multichannel audio-video frequency played The audio-video signal that the audio/video flow of Liu Zhongji roads de-embedding is formed, at least two-way audio-video signal first adds through broadcasting, then warp Output or the output after integration, embedding formation audio/video flow successively again after embedding formation audio/video flow；
The embedding is to be encapsulated to form audio/video flow by audio signal and/or vision signal；
Vision signal in the audio-video signal is divided into transverse screen vision signal and portrait layout vision signal, the transverse screen vision signal Embedding is carried out with transverse screen mode with audio signal, the portrait layout vision signal carries out embedding with audio signal with vertical screen mode；
The transverse screen vision signal is that the vision signal to be formed is shot by transverse screen, and the transverse screen that the transverse screen vision signal is formed is regarded Frequency image, the horizontal direction pixel quantity of the transverse screen video image is typically larger than the vertical direction pixel of the transverse screen video image Quantity, the portrait layout vision signal is that the vision signal to be formed is shot by portrait layout, the portrait layout that the portrait layout vision signal is formed Video image, the horizontal direction pixel quantity of the portrait layout video image is typically smaller than the vertical direction picture of the portrait layout video image Prime number amount.
5. the audio-video switching method to mobile internet device according to claim 1, it is characterised in that：The sound is regarded Frequency stream is received and sent by wireless network.
6. the cut bank that a kind of audio frequency and video to mobile internet device switch, it is characterised in that：The cut bank is to exempt from embedding Cut bank or embedding cut bank.
7. the cut bank that the audio frequency and video to mobile internet device according to claim 6 switch, it is characterised in that：
The embedding cut bank of exempting from includes audio/video flow input block, the output end and audio frequency and video of the audio/video flow input block Flow the input electrical connection of dividing cell, the output end of the audio/video flow dividing cell respectively with multiple audio/video flow de-embedding lists The input electrical connection of unit, the output end of multiple audio/video flow de-embedding units and the input of multiple audio and video playing units Electrical connection, the output end of the audio/video flow dividing cell is electrically connected with the input of audio/video flow switch unit, and the sound is regarded The output end of frequency stream switch unit is electrically connected with the input of audio/video flow output unit；
The embedding cut bank includes audio/video flow input block, the output end and audio/video flow of the audio/video flow input block The input electrical connection of dividing cell, the output end of the audio/video flow dividing cell respectively with multiple audio/video flow de-embedding units Input electrical connection, the input electricity of the output end of multiple audio/video flow de-embedding units and multiple audio and video playing units Connection, or, the output end of multiple audio/video flow de-embedding units is electrically connected with the output end of multiple audio and video playing units, Input of the output end of multiple audio/video flow de-embedding units with audio frequency and video switch unit is electrically connected, and the audio frequency and video are cut The output end for changing unit is electrically connected with the input of audio frequency and video embedding unit, and the output end of the audio frequency and video embedding unit is regarded with sound The input electrical connection of frequency stream output unit.
8. the cut bank that the audio frequency and video to mobile internet device according to claim 7 switch, it is characterised in that：
In embedding cut bank is exempted from, set respectively between the audio/video flow dividing cell and multiple audio/video flow de-embedding units Audio frequency and video buffer cell is equipped with, the input of the audio frequency and video buffer cell is electric with the output end of the audio/video flow dividing cell Connection, the first output end of the audio frequency and video buffer cell is electrically connected with the input of the audio/video flow de-embedding unit, described Second output end of audio frequency and video buffer cell is electrically connected with the input of the audio frequency and video switch unit；
In embedding cut bank, it is respectively provided between the audio/video flow dividing cell and multiple audio/video flow de-embedding units There is audio frequency and video buffer cell, the input of the audio frequency and video buffer cell is electrically connected with the output end of the audio/video flow dividing cell Connect, the end that goes out of the audio frequency and video buffer cell electrically connects with the input of the audio/video flow de-embedding unit；Or, it is multiple described Audio frequency and video buffer cell is respectively arranged between audio/video flow de-embedding unit and multiple audio and video playing units, the sound is regarded The input of frequency buffer cell electrically connects with the output end of the audio/video flow de-embedding unit, and the audio frequency and video buffer cell goes out End electrically connects with the input of the audio and video playing unit；
In embedding cut bank is exempted from, the second output end of the audio frequency and video buffer cell is relative to the of the audio frequency and video buffer cell One output end postpones a period of time output；
In embedding cut bank, audio frequency and video integration is provided between the audio frequency and video switch unit and the audio frequency and video embedding unit Unit, the input of the audio frequency and video integral unit is electrically connected with the output end of the audio frequency and video switch unit, the audio frequency and video The output end of integral unit is electrically connected with the input of the audio frequency and video embedding unit.
9. the cut bank that the audio frequency and video to mobile internet device according to claim 7 switch, it is characterised in that：It is described Audio frequency and video resolving cell, the audio and video playing list are provided between audio/video flow de-embedding unit and the audio and video playing unit Unit is decomposed into audio playing unit and video playback unit, the input of the audio frequency and video resolving cell and the audio/video flow solution The output end electrical connection of embedding unit, the audio output of the audio frequency and video resolving cell is defeated with the audio of the audio playing unit Enter end electrical connection, the video output terminals of the audio frequency and video resolving cell are electrically connected with the video inputs of the video playback unit Connect, the audio input end of the audio frequency and video switch unit is electrically connected with the audio output of the audio frequency and video resolving cell, described The video inputs of audio frequency and video switch unit are electrically connected with the video output terminals of the audio frequency and video resolving cell, or, the sound The audio input end of video switch unit is electrically connected with the audio output of the audio playing unit, and the audio frequency and video switching is single The video inputs of unit are electrically connected with the video output terminals of the video playback unit；
Sound is provided between the audio output of the audio frequency and video resolving cell and the audio input end of the audio playing unit Frequency buffer cell, the audio input end of the Audio Buffer unit is electrically connected with the audio output of the audio frequency and video resolving cell Connect, the audio output of the Audio Buffer unit is electrically connected with the audio input end of the audio playing unit, and the sound is regarded Video buffer unit, institute are provided between the video inputs of the video output terminals of frequency resolving cell and the video playback unit The video inputs for stating video buffer unit are electrically connected with the video output terminals of the audio frequency and video resolving cell, the video buffer The video output terminals of unit are electrically connected with the video inputs of the video playback unit；
The audio input end of the audio frequency and video switch unit is electrically connected with the audio output of the Audio Buffer unit, described to regard The video inputs of frequency switch unit are electrically connected with the video output terminals of the video buffer unit.
10. the cut bank that the audio frequency and video to mobile internet device according to claim 7 switch, it is characterised in that：Institute Stating audio frequency and video embedding unit includes transverse screen audio frequency and video embedding subelement and portrait layout audio frequency and video embedding subelement.
CN201611201811.3A 2016-12-23 2016-12-23 To the audio-video switching method and its cut bank of mobile internet device Pending CN106791902A (en)

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