CN106604115A - Video play control device and method - Google Patents
Video play control device and method Download PDFInfo
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- CN106604115A CN106604115A CN201611270949.9A CN201611270949A CN106604115A CN 106604115 A CN106604115 A CN 106604115A CN 201611270949 A CN201611270949 A CN 201611270949A CN 106604115 A CN106604115 A CN 106604115A
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000001960 triggered effect Effects 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 2
- 230000004044 response Effects 0.000 description 12
- 230000008569 process Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4341—Demultiplexing of audio and video 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4333—Processing operations in response to a pause request
-
- 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
-
- 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440227—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by decomposing into layers, e.g. base layer and one or more enhancement layers
-
- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/65—Transmission of management data between client and server
- H04N21/658—Transmission by the client directed to the server
- H04N21/6587—Control parameters, e.g. trick play commands, viewpoint selection
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
The invention discloses a video play control device. The video play control device comprises a play control module and a video pipeline. The video play control device also comprises a hardware abstraction layer module, a hardware decoding module and a hardware display module. The hardware abstraction layer module is used for receiving information of the play control module and/or the video pipeline, and carrying out control operation on the hardware decoding module and/or the hardware display module according to the information. The invention also provides a video play control method. Through control operation, carried out by the hardware abstraction layer module, on the hardware decoding module and the hardware display module, the hardware decoding module and the hardware display module are allowed to be arranged outside the video pipeline, thereby reducing state switching of internal modules in the video pipeline, and reducing consumed time.
Description
Technical field
The present invention relates to video playback field, more particularly to video playback control device and method.
Background technology
Video is watched by network and has become one of recreations indispensable in people's daily life.It is existing to regard
Frequency player generally carries out the broadcasting of video file using video tube, and referring to Fig. 1, video tube includes data source modules, solution
Multiplexing module, decoder module and display module, and each module corresponds to four kinds of states, respectively GST_STATE_NULL is (silent
Recognize state), GST_STATE_READY (SBR), GST_STATE_PAUSED (halted state) and GST_STATE_
PLAYING (running status).It is when video player is performed suspends broadcasting and positioning playing operation, all in video player
Module is required for being switched to GST_STATE_PAUSED (halted state) from GST_STATE_PLAYING (running status), then
GST_STATE_PLAYING (running status) is switched to from GST_STATE_PAUSED (halted state) again, this mode is present
Defect be to complete that the consumed time is long to operation response from starting to perform operation, response speed is slow.
The content of the invention
Present invention is primarily targeted at providing a kind of video playback control device and method, it is intended to by decoder module and
Display module is placed in outside video tube, is not controlled by the video tube, so as to reduce between video tube internal module
Frequency is changed, and shortens time-consuming.
For achieving the above object, a kind of video playback control device that the present invention is provided, the video playback control device
Including play control module and video tube, the video playback control device also includes that hardware abstraction layer module, hardware are decoded
Module and hardware display module；The hardware abstraction layer module receives the play control module and/or the video tube
Information, and operation is controlled to the hardware decoder module and/or the hardware display module according to described information.
Preferably, described information includes the audio, video data and coding/decoding information of the video tube transmission；
The hardware abstraction layer module, is additionally operable to when the audio, video data and encoding and decoding that receive the video tube transmission
During information, control the hardware decoder module execution and the audio, video data is decoded according to the coding/decoding information, with
The step of obtaining video data and voice data；
The hardware display module, for showing video data, and exports the voice data.
Preferably, the video tube includes data source modules and demultiplexing module；
The data source modules, for obtaining original audio, video data and the corresponding parameter letter of the original audio, video data
Breath, and the corresponding demultiplexing module of the video tube loading is triggered according to the parameter information；
The demultiplexing module, it is for parsing the original audio, video data that the data source modules are obtained, described to extract
Audio, video data and the coding/decoding information.
Preferably, described information also includes the time-out information that the play control module sends；
The hardware abstraction layer module, is additionally operable to the time-out information sent according to the play control module, and obstruction is described
Video tube is input into the audio, video data, and controls the hardware decoder module and the hardware display module is out of service.
Preferably, described information also includes the positioning playing information that the play control module sends；
The hardware abstraction layer module, is additionally operable to after the positioning playing information is received, and controls the hardware decoding
Module and the hardware display module empty caching, and receive the audio, video data that the video tube resends, to control
The audio, video data that video tube described in the hardware decoder module perform decoding resends, to obtain decoded sound again
The step of frequency evidence and video data；Wherein, the audio, video data that the video tube resends is the video tube root
According to the audio, video data that the positioning playing information that the play control module sends is reacquired.
Additionally, for achieving the above object, the present invention also provides a kind of video playing control method, the video playback control
Method is comprised the following steps：
Hardware abstraction layer module receives the information of play control module and/or video tube；
The hardware abstraction layer module is controlled to hardware decoder module and/or hardware display module according to described information
Operation.
Preferably, described information includes the audio, video data and coding/decoding information of the video tube transmission；The hardware
Abstraction layer module includes the step of being controlled operation to hardware decoder module and/or hardware display module according to described information：
When audio, video data and the coding/decoding information that the video tube sends is received, the hardware abstraction layer module
Control the hardware decoder module execution to decode the audio, video data according to the coding/decoding information, to obtain video
The step of data and voice data；
After the hardware decoder module obtains video data and voice data, the hardware abstraction layer module control is described
Hardware display module shows the video data and the output voice data.
Preferably, the video tube includes data source modules and demultiplexing module；It is described to receive the video tube
The step of audio, video data and coding/decoding information of transmission, includes：
The hardware abstraction layer module receives the demultiplexing module and parses the audio frequency and video extracted by original audio, video data
Data and coding/decoding information；Wherein, the demultiplexing module is that the data source modules are obtaining the original audio, video data
And after the corresponding parameter information of the original audio, video data, the solution of the video tube loading is triggered according to the parameter information
Multiplexing module.
Preferably, described information also includes the time-out information that the play control module sends；The hardware abstraction layer mould
Tuber includes the step of being controlled operation to hardware decoder module and/or hardware display module according to described information：
The time-out information that the hardware abstraction layer module is sent according to the play control module, blocks the video tube
It is input into the audio, video data, and controls the hardware decoder module and the hardware display module is out of service.
Preferably, described information also includes the positioning playing information that the play control module sends；The hardware abstraction
Layer module includes the step of being controlled operation to hardware decoder module and/or hardware display module according to described information：
The hardware abstraction layer module controls the hardware decoder module and institute after the positioning playing information is received
State hardware display module and empty caching, and receive the audio, video data that the video tube resends, to control the hardware
The audio, video data that video tube described in decoder module perform decoding resends, with obtain again decoded voice data and
The step of video data；Wherein, the audio, video data that the video tube resends is the video tube according to receiving
The audio, video data that reacquires of the positioning playing information that sends of the play control module.
The embodiment of the present invention is by, on the premise of play control module and video tube is arranged, arranging hardware abstraction layer mould
Block, hardware decoder module and hardware display module；The hardware abstraction layer module receives the play control module and/or described
The information of video tube, and the hardware decoder module and/or the hardware display module are controlled according to described information
Operation.So as to decoding operate and display operation are placed on outside video tube, the state switching of video tube inner module, contracting are reduced
Short Video processing it is time-consuming.
Description of the drawings
Fig. 1 is the structural representation of current video playback control device；
Fig. 2 is the high-level schematic functional block diagram of video playback control device first embodiment of the present invention；
Fig. 3 is that the refinement functional module of the video channel in video playback control device second embodiment of the present invention is illustrated
Figure；
Fig. 4 is the structural representation of video playback control device of the present invention；
Fig. 5 is the schematic flow sheet of video playing control method first embodiment of the present invention；
Fig. 6 is hardware abstraction layer module described in video playing control method second embodiment of the present invention according to described information
The refinement schematic flow sheet of the step of operation is controlled to hardware decoder module and/or hardware display module；
Fig. 7 is the schematic flow sheet of video playing control method 3rd embodiment of the present invention；
Fig. 8 is the schematic flow sheet of video playing control method fourth embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
It should be appreciated that specific embodiment described herein is not intended to limit the present invention only to explain the present invention.
The present invention provides a kind of video playback control device, with reference to Fig. 2, in the first embodiment of the present invention, described to regard
Frequency broadcast control device includes play control module 10 and video tube 20；The video playback control device is also taken out including hardware
As layer module 30, hardware decoder module 40 and hardware display module 50；The hardware abstraction layer module 30 receives described broadcasting and controls
The information of molding block 10 and/or the video tube 20, and according to described information to the hardware decoder module 40 and/or described
Hardware display module 50 is controlled operation.
The embodiment of the present invention suitable for the video player based on Gstreamer, Gstreamer be it is a kind of increase income it is many
Media framework, is widely used in the video playback of the intelligent terminals such as intelligent television, Set Top Box, its software module at present
The degree of change is high and module between there is good loose coupling, facilitate developer quickly to realize the exploitation of New function and daily
Safeguard.
It should be noted that current video tube 20 includes data source modules, demultiplexing module, decoder module and shows
Show module, when video playback being carried out by video tube 20, upper layer application can control described by play control module 10
The module status of module or inquiry 20 inner module of video channel in video channel 20.Above-mentioned module status are specifically referred in video
During passage 20 performs operation, each module has four states, respectively GST_STATE_NULL (default conditions),
GST_STATE_READY (SBR), GST_STATE_PAUSED (halted state) and GST_STATE_PLAYING (operations
State).Wherein default conditions when current block take resource can be released；During SBR, work as front mould in the state
Block can obtain all required global resources, and these global resources will be used by the data flow of the module；Halted state
When, the module in the state can change the positional information of data flow, read or Treatment Analysis video data；Running status
When, in addition to operation clock is currently running, other states are consistent with halted state for the module in the state.It can thus be seen that
Difference effect with regard to halted state and running status is fewer, when the data source modules in video tube 20, demultiplexing module
And after decoder module reaches halted state, with regard to the operation that can be demultiplexed to data and decoded, with running status
Compare, simply time stamp can not be obtained by video tube 20, it is impossible to carry out positioning playing and suspend playing by video tube 20
Operation.Therefore can be by arranging SDK (Software Development Kit, SDK) module, the SDK
Module includes hardware abstraction layer module 30, hardware decoder module 40 and hardware display module 50, by decoding operate and display operation
It is placed on outside video tube 20, and then allows broadcasting control operation and system decoding display to region be directly facing hardware abstraction layer module 30,
So as to pass through the control hardware of hardware abstraction layer module 30 decoder module 40 and hardware display module 50.Directly can be obtained by hardware
The currently playing time, and positioning playing and pausing operation are performed, the internal module being prevented effectively from video channel 20 needs frequency
The problem of numerous switching state, accelerates player response speed, shortens response time.
Propose that video playback control device of the present invention second is real based on video playback control device first embodiment of the present invention
Example is applied, in the present embodiment, described information includes the audio, video data and coding/decoding information of the transmission of the video tube 20；
The hardware abstraction layer module 30, is additionally operable to when the audio, video data and volume that receive the transmission of the video tube 20
During decoded information, control the hardware decoder module 40 and perform to solve the audio, video data according to the coding/decoding information
Code, the step of to obtain video data and voice data；
The hardware display module 50, for showing video data, and exports the voice data.
It should be noted that the module that above-mentioned video tube 20 is included can be configured according to actual needs, alternatively,
Referring to Fig. 3, the video tube 20 includes data source modules 21 and demultiplexing module 22.In the present embodiment, work as described information
When the audio, video data sent for the video tube 20 and coding/decoding information, i.e., current video player is opened in quick broadcasting
Dynamic flow process, now the data source modules 21, corresponding for obtaining original audio, video data and the original audio, video data
Parameter information, and the video tube 20 is triggered according to the parameter information load corresponding demultiplexing module 21；It is described to demultiplex
With module 22, for parsing the original audio, video data of the acquisition of the data source modules 21, with extract the audio, video data and
The coding/decoding information.
Please with reference to Fig. 4, specifically, when in quick broadcasting Booting sequence, play control module 10 is being received
Video tube 20 is created after the play command of outside media file, and the address information of media file is sent to into the video
Pipeline 20, video tube 20 load corresponding data source modules 21 according to the address information of media file.The data source modules
21 obtain original audio, video data, and the original audio, video data is parsed, it is to be resolved after the completion of extract it is corresponding
Parameter information, then triggers the loading demultiplexing module 21 of video tube 20, now, data source modules 21 according to the parameter information
SBR is switched to from default conditions with demultiplexing module 22.
The demultiplexing module 22 is parsed to the original audio, video data that data source modules 21 are obtained, and compiles solution to extract
Then the coding/decoding information and audio, video data are sent to the hardware abstraction layer module by code information and audio, video data
30.The hardware abstraction layer module 30 after coding/decoding information and audio, video data is received, initiating hardware decoder module 40
And hardware display module 50, now, data source modules 21 and demultiplexing module 22 are switched to halted state by SBR.Need
Illustrate, above-mentioned audio, video data is the file for possessing image and sound, and the video tube 20 can be according to media file
The difference of address information, creates different types of data source modules 21, and common 21 type of data source modules includes HTTP
(HyperText Transfer Protocol, HTML (Hypertext Markup Language)) and RSTP (Rapid Spanning Tree
Protocol, RSTP) etc.；Common 22 type of demultiplexing module includes ts_demux, mp4_demux and flv_
Demux etc.；The demultiplexing module 22 also can load different volumes according to the different parameters information type of original audio, video data
Decoded information.
When the hardware decoder module 40 receives the audio, video data of the transmission of hardware abstraction layer module 30 and compiles solution
After code information, the audio, video data is decoded according to the coding/decoding information, and by decoded voice data and regarded
Frequency evidence is sent to hardware display module 50, so that hardware display module 50 shows video data and exports voice data.Need
Illustrate, above-mentioned video data is the file for possessing image, and above-mentioned voice data is the file for possessing sound.By such scheme
Understand, in video channel 20, all modules only need to be switched to SBR from default conditions, then be switched to temporarily from SBR
Stop state, eliminate running status, while the video tube 20 is when video playback is carried out, without the need for built-in decoder module and aobvious
Show module, therefore shorten the operation response time of video tube 20.
Propose that video playback control device of the present invention 3rd is real based on video playback control device second embodiment of the present invention
Example is applied, in the present embodiment, described information also includes the time-out information that the play control module sends；
The hardware abstraction layer module 30, is additionally operable to the time-out information sent according to the play control module 10, obstruction
The video tube 20 is input into the audio, video data, and controls the hardware decoder module 40 and the hardware display module 50
It is out of service.
In the present embodiment, when described information is the time-out information that the play control module 10 sends, the video
Player is in time-out playing flow.Concrete implementation procedure be play control module 10 after suspending message is received, to hard
Part abstraction layer module 30 sends suspending message.Wherein, the video player is played by the suspending message request
The operational order of video pause.The hardware abstraction layer module 30 after suspending message is received, the sound of blocked video pipeline 20
The input of video data, and pausing operation is carried out to hardware decoder module 40 and hardware display module 50.Now, video tube
The output of 20 audio, video datas is blocked, and data processing is suspended, and need not process suspending message, need not more carry out internal mode block
Switching between state, therefore video player is when time-out play operation is carried out, video tube 20 is passive stop tone video counts
According to output, state switching need not be carried out between internal module, without operation, it is achieved that quick response.
It should be noted that after receiving broadcasting message during 10 here of play control module is suspended again, wherein, institute
The operational order for playing that message is that request video player plays video is stated, the play control module 10 can be taken out by hardware
Recover decoding operate as the control hardware of layer module 30 decoder module 40 is performed, and perform recovery to hardware display module 50 to show behaviour
Make, recover the purpose played so as to reach, additionally, recover process being actively engaged in without video channel 20 played, when connecing
After receiving broadcasting message, the hardware abstraction layer module 30 stops blocking the audio frequency and video input of the video channel 20 and is capable of achieving
The audio, video data output of video channel 20.
Propose that video playback control device of the present invention 4th is real based on video playback control device second embodiment of the present invention
Example is applied, in the present embodiment, described information also includes the positioning playing information that the play control module sends；
The hardware abstraction layer module, is additionally operable to after the positioning playing information is received, and controls the hardware decoding
Module 40 and the hardware display module 50 empty caching, and receive the audio, video data that the video tube 20 resends,
With the audio, video data that video tube 20 described in control 40 perform decoding of hardware decoder module resends, to obtain again
The step of decoded voice data and video data；Wherein, the audio, video data that the video tube 20 resends is institute
State the audio, video data that video tube 20 is reacquired according to the positioning playing information that the play control module 10 sends.
In the present embodiment, it is when described information is the positioning playing information that the play control module 10 sends, described
Video player is in positioning playing state, wherein, the positioning playing refers to that selection fixed position commences play out.It is concrete to perform
Process is：Positioning playing information is sent to 20 He of video tube after positioning playing information is received by play control module 10
Hardware abstraction layer module 30.The video tube 20 after positioning playing information is received empties data source modules 21 and demultiplexes
With the caching of module 22, and new play position information is produced with by the new play position according to the positioning playing information
Information is sent to data source modules 21.Data source modules 21 re-read audio, video data according to new play position information, and
By the audio, video data for re-reading output to demultiplexing module 22.The demultiplexing module 22 parses the data source modules 21
The original audio, video data for resending is to obtain new audio, video data, and new audio, video data output is arrived hardware
Abstraction layer module 30.And hardware abstraction layer module 30 is after positioning playing message is received, hardware decoder module 40 and hard is emptied
The caching of part display module 50；And after the audio, video data of the transmission of demultiplexing module 22 is received again, the hardware abstraction
The audio, video data for receiving is decoded to generate video data and audio frequency number by the layer control hardware of module 30 decoder module 40
According to, and shown and exported by hardware display module 50.
During whole positioning playing be can be seen that from above-mentioned implementation procedure, the video tube 20 has simply carried out clear
The operation of empty buffer, other handling processes are consistent with the quick playing flow that starts, therefore need not carry out other modules switching behaviour
Make, while the hardware decoder module 40 and hardware display module 50 are emptied caching and can be regarded with the sound of video tube 20
Frequency flow chart of data processing is synchronously carried out, and further improves the response speed of positioning playing.
Additionally, the present invention also provides a kind of video playing control method, referring to Fig. 5, in the first embodiment of the present invention,
The video playing control method is comprised the following steps：
Step S100, hardware abstraction layer module receive the information of play control module and/or video tube；
Step S200, the hardware abstraction layer module show mould to hardware decoder module and/or hardware according to described information
Block is controlled operation.
The embodiment of the present invention suitable for the video player based on Gstreamer, Gstreamer be it is a kind of increase income it is many
Media framework, is widely used in the video playback of the intelligent terminals such as intelligent television, Set Top Box, its software module at present
The degree of change is high and module between there is good loose coupling, facilitate developer quickly to realize the exploitation of New function and daily
Safeguard.
It should be noted that current video tube includes data source modules, demultiplexing module, decoder module and display
Module, when video playback is carried out by video tube, upper layer application can control the video by play control module and lead to
The module status of module or inquiry video channel inner module in road.Above-mentioned module status specifically refer to perform behaviour in video channel
During work, each module has four states, respectively GST_STATE_NULL (default conditions), GST_STATE_
READY (SBR), GST_STATE_PAUSED (halted state) and GST_STATE_PLAYING (running status).Wherein
The resource that current block takes during default conditions can be released；During SBR, the current block in the state can obtain institute
Global resource needed for having, these global resources will be used by the data flow of the module；During halted state, in the shape
The module of state can change the positional information of data flow, read or Treatment Analysis video data；During running status, in the state
Module except operation clock be currently running in addition to, other states are consistent with halted state.It can thus be seen that with regard to halted state and
The difference effect of running status is fewer, when the data source modules in video tube, demultiplexing module and decoder module reach
After halted state, with regard to the operation that can be demultiplexed to data and decoded, compared with running status, can not simply pass through
Video tube obtains time stamp, it is impossible to carries out positioning playing by video tube 20 and suspends play operation.Therefore can be by setting
SDK (Software Development Kit, SDK) module is put, the SDK modules include hardware abstraction layer
Module, hardware decoder module and hardware display module, by decoding operate and show that operation is placed on outside video tube, and then allow and broadcast
Put control operation and system decoding display region be directly facing hardware abstraction layer module, so as to pass through hardware abstraction layer module control hardware
Decoder module and hardware display module.The currently playing time can be obtained by hardware directly, and perform positioning playing and time-out
Operation, the internal module being prevented effectively from video channel need the problem of frequent switching state, accelerate player response speed, contracting
Short response time.
Referring to Fig. 6, video playback controlling party of the present invention is proposed based on video playing control method first embodiment of the present invention
Method second embodiment, in the present embodiment, described information includes the audio, video data and encoding and decoding letter of the video tube transmission
Breath；Step S200 includes：
Step S211, when audio, video data and the coding/decoding information that the video tube sends is received, the hardware
Abstraction layer module controls the hardware decoder module execution and the audio, video data is decoded according to the coding/decoding information,
The step of to obtain video data and voice data；
Step S212, after the hardware decoder module obtains video data and voice data, the hardware abstraction layer mould
Block controls the hardware display module and shows the video data and the output voice data.
It should be noted that the module that above-mentioned video tube is included can be configured according to actual needs, and alternatively, institute
Stating video tube includes data source modules and demultiplexing module.In the present embodiment, when described information is sent out for the video tube
When the audio, video data for sending and coding/decoding information, i.e., current video player plays Booting sequence in quick, now the number
According to source module, for obtaining original audio, video data and the corresponding parameter information of the original audio, video data, and according to described
Parameter information triggers the video tube and loads corresponding demultiplexing module；The demultiplexing module, for parsing the data
The original audio, video data that source module is obtained, to extract the audio, video data and the coding/decoding information.
Specifically, when in quick broadcasting Booting sequence, play control module is in the media file for receiving outside
Create video tube after play command, and the address information of media file be sent to into the video tube, video tube according to
The address information of media file loads corresponding data source modules.The data source modules obtain original audio, video data, and right
The original audio, video data is parsed, it is to be resolved after the completion of extract corresponding parameter information, then according to the parameter
Information triggering video tube loading demultiplexing module, now, data source modules and demultiplexing module are switched to standard from default conditions
Standby state.
The demultiplexing module is parsed to the original audio, video data that data source modules are obtained, to extract encoding and decoding letter
Then the coding/decoding information and audio, video data are sent to the hardware abstraction layer module by breath and audio, video data.It is described
After coding/decoding information and audio, video data is received, initiating hardware decoder module and hardware show mould to hardware abstraction layer module
Block, now, data source modules and demultiplexing module are switched to halted state by SBR.It should be noted that above-mentioned sound is regarded
Frequency can be created according to the difference of the address information of media file according to the file to possess image and sound, the video tube
Different types of data source modules, common data source modules type include HTTP (HyperText Transfer
Protocol, HTML (Hypertext Markup Language)) and RSTP (Rapid Spanning Tree Protocol, RSTP)
Deng；Common demultiplexing module type includes ts_demux, mp4_demux and flv_demux etc.；The demultiplexing module also can
Different coding/decoding informations are loaded according to the different parameters information type of original audio, video data.
When the hardware decoder module receives the audio, video data of the hardware abstraction layer module transfer and encoding and decoding letter
After breath, the audio, video data is decoded according to the coding/decoding information, and by decoded voice data and video counts
According to hardware display module is sent to, so that hardware display module shows video data and exports voice data.It should be noted that
Above-mentioned video data is the file for possessing image, and above-mentioned voice data is the file for possessing sound.From such scheme, regarding
In frequency passage, all modules only need to be switched to SBR from default conditions, then be switched to halted state from SBR, omit
Running status, while the video tube is when video playback is carried out, without the need for built-in decoder module and display module, therefore contracts
The short operation response time of video tube.
Referring to Fig. 7, video playback controlling party of the present invention is proposed based on video playing control method second embodiment of the present invention
Method 3rd embodiment, in the present embodiment, described information also includes the time-out information that the play control module sends；The step
Rapid S200 also includes：
Step S220, the time-out information that the hardware abstraction layer module is sent according to the play control module block institute
State video tube and be input into the audio, video data, and control the hardware decoder module and hardware display module stopping fortune
OK.
In the present embodiment, when described information is the time-out information that the play control module sends, the video is broadcast
Put device and be in and suspend in playing flow.Concrete implementation procedure is play control module after suspending message is received, and is taken out to hardware
As layer module sends suspending message.Wherein, the suspending message is that the video that the video player is being played by request is temporary
The operational order for stopping.The hardware abstraction layer module after suspending message is received, the audio, video data of blocked video pipeline
Input, and pausing operation is carried out to hardware decoder module and hardware display module.Now, video tube audio, video data output
Blocked, data processing is suspended, and need not process suspending message, need not more carry out the switching between internal module state, because
When time-out play operation is carried out, video tube is passively to stop audio, video data output, internal module to this video player
Between need not carry out state switching, without operation, it is achieved that quick response.
It should be noted that after receiving broadcasting message during play control module here is suspended again, wherein, it is described
The operational order that message is that request video player plays video is played, the play control module can pass through hardware abstraction layer
Module control hardware decoder module is performed and recovers decoding operate, and the execution of hardware display module is recovered to show operation, so as to reach
To the purpose for recovering to play, additionally, recover process being actively engaged in without video channel played, when receiving broadcasting message
Afterwards, the hardware abstraction layer module stops the audio frequency and video of the i.e. achievable video channel of audio frequency and video input of the obstruction video channel
Data output.
Referring to Fig. 8, video playback controlling party of the present invention is proposed based on video playing control method second embodiment of the present invention
Method fourth embodiment, in the present embodiment, described information also includes the positioning playing information that the play control module sends；Institute
Stating step S200 also includes：
Step S230, the hardware abstraction layer module control the hardware solution after the positioning playing information is received
Code module and the hardware display module empty caching, and receive the audio, video data that the video tube resends, to control
The audio, video data that video tube described in making the hardware decoder module perform decoding resends, it is again decoded to obtain
The step of voice data and video data；Wherein, the audio, video data that the video tube resends is the video tube
The audio, video data that the positioning playing information that the play control module according to receiving sends is reacquired.
In the present embodiment, it is when described information is the positioning playing information that the play control module sends, described to regard
Frequency player is in positioning playing state, wherein, the positioning playing refers to that selection fixed position commences play out.Specifically performed
Cheng Wei：Positioning playing information after positioning playing information is received is sent to video tube and hardware is taken out by play control module
As layer module.The video tube empties the caching of data source modules and demultiplexing module after positioning playing information is received,
And produce new play position information the new play position information is sent to data according to the positioning playing information
Source module.Data source modules re-read audio, video data according to new play position information, and by the audio frequency and video for re-reading
Data output is to demultiplexing module.The demultiplexing module parses the original audio frequency and video that the data source modules resend
Data are to obtain new audio, video data, and new audio, video data output is arrived hardware abstraction layer module.And hardware abstraction layer
Module empties the caching of hardware decoder module and hardware display module after positioning playing message is received；And ought receive again
After the audio, video data sent to demultiplexing module, the hardware abstraction layer module controls hardware decoder module by the sound for receiving
Video data is decoded to generate video data and voice data, and is shown and exported by hardware display module.
During whole positioning playing be can be seen that from above-mentioned implementation procedure, the video tube is simply emptied
The operation of buffering, other handling processes are consistent with the quick playing flow that starts, therefore need not carry out other module handover operations,
Simultaneously the hardware decoder module and hardware display module empty caching can with the audio, video data of video tube at
Reason flow process is synchronously carried out, and further improves the response speed of positioning playing.
The preferred embodiments of the present invention are these are only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of video playback control device, the video playback control device include play control module and video tube, its
It is characterised by, the video playback control device also includes hardware abstraction layer module, hardware decoder module and hardware display module；
The hardware abstraction layer module receives the information of the play control module and/or the video tube, and according to described information
Operation is controlled to the hardware decoder module and/or the hardware display module.
2. video playback control device as claimed in claim 1, it is characterised in that described information includes that the video tube is sent out
The audio, video data for sending and coding/decoding information；
The hardware abstraction layer module, is additionally operable to when the audio, video data and coding/decoding information that receive the video tube transmission
When, control the hardware decoder module execution and the audio, video data is decoded according to the coding/decoding information, to obtain
The step of video data and voice data；
The hardware display module, for showing video data, and exports the voice data.
3. video playback control device as claimed in claim 2, it is characterised in that the video tube includes data source modules
And demultiplexing module；
The data source modules, for obtaining original audio, video data and the corresponding parameter information of the original audio, video data,
And the corresponding demultiplexing module of the video tube loading is triggered according to the parameter information；
The demultiplexing module, for parsing the original audio, video data that the data source modules are obtained, is regarded with extracting the sound
Frequency evidence and the coding/decoding information.
4. video playback control device as claimed in claim 3, it is characterised in that described information also includes described playing control
The time-out information that module sends；
The hardware abstraction layer module, is additionally operable to the time-out information sent according to the play control module, blocks the video
Pipeline is input into the audio, video data, and controls the hardware decoder module and the hardware display module is out of service.
5. video playback control device as claimed in claim 3, it is characterised in that described information also includes described playing control
The positioning playing information that module sends；
The hardware abstraction layer module, is additionally operable to after the positioning playing information is received, and controls the hardware decoder module
Caching is emptied with the hardware display module, and receives the audio, video data that the video tube resends, it is described to control
The audio, video data that video tube described in hardware decoder module perform decoding resends, to obtain decoded audio frequency number again
According to and the step of video data；Wherein, the audio, video data that the video tube resends is the video tube according to institute
State the audio, video data that the positioning playing information of play control module transmission is reacquired.
6. a kind of video playing control method, it is characterised in that the video playing control method is comprised the following steps：
Hardware abstraction layer module receives the information of play control module and/or video tube；
The hardware abstraction layer module is controlled behaviour to hardware decoder module and/or hardware display module according to described information
Make.
7. video playing control method as claimed in claim 6, it is characterised in that described information includes that the video tube is sent out
The audio, video data for sending and coding/decoding information；The hardware abstraction layer module according to described information to hardware decoder module and/or
The step of hardware display module is controlled operation includes：
When audio, video data and the coding/decoding information that the video tube sends is received, the hardware abstraction layer module control
The hardware decoder module is performed and the audio, video data is decoded according to the coding/decoding information, to obtain video data
And the step of voice data；
After the hardware decoder module obtains video data and voice data, the hardware abstraction layer module controls the hardware
Display module shows the video data and the output voice data.
8. video playing control method as claimed in claim 7, it is characterised in that the video tube includes data source modules
And demultiplexing module；It is described to include the step of receive audio, video data and the coding/decoding information that the video tube sends：
The hardware abstraction layer module receives the demultiplexing module and parses the audio, video data extracted by original audio, video data
And coding/decoding information；Wherein, the demultiplexing module is obtaining the original audio, video data and institute for the data source modules
After stating the corresponding parameter information of original audio, video data, the demultiplexing of the video tube loading is triggered according to the parameter information
Module.
9. video playing control method as claimed in claim 7, it is characterised in that described information also includes described playing control
The time-out information that module sends；The hardware abstraction layer module is shown to hardware decoder module and/or hardware according to described information
The step of module is controlled operation includes：
The time-out information that the hardware abstraction layer module is sent according to the play control module, blocks the video tube input
The audio, video data, and control the hardware decoder module and the hardware display module is out of service.
10. video playing control method as claimed in claim 7, it is characterised in that described information also includes described playing control
The positioning playing information that molding block sends；The hardware abstraction layer module is according to described information to hardware decoder module and/or hard
The step of part display module is controlled operation includes：
The hardware abstraction layer module controls the hardware decoder module and described hard after the positioning playing information is received
Part display module empties caching, and receives the audio, video data that the video tube resends, to control the hardware decoding
The audio, video data that video tube described in module perform decoding resends, to obtain decoded voice data and video again
The step of data；Wherein, the audio, video data that the video tube resends is the video tube according to the institute for receiving
State the audio, video data that the positioning playing information of play control module transmission is reacquired.
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