CN106658174A - Video decoding terminal and method - Google Patents
Video decoding terminal and method Download PDFInfo
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- CN106658174A CN106658174A CN201610931638.6A CN201610931638A CN106658174A CN 106658174 A CN106658174 A CN 106658174A CN 201610931638 A CN201610931638 A CN 201610931638A CN 106658174 A CN106658174 A CN 106658174A
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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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
-
- 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
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4334—Recording operations
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
The invention discloses a video decoding terminal, which comprises a first judgment module, a first recording module, a second judgment module, a startup module and a second decoding module. The first judgment module is used for receiving a playing instruction of a video file and judging whether the AVC hardware decoding of the video file is enabled or not. If the video file enables the AVC hardware decoding of the video file is enabled, the AVC hardware decoding process is decoded and invoked by a first decoding module. Meanwhile, the AVC hardware decoding process is monitored by the first decoding module. The first recording module is used for recording the AVC hardware decoding position of the video file when the monitored AVC hardware decoding process is abnormal. The second judgment module is used for judging whether the AVC software decoding of the video file is enabled or not. When the AVC software decoding of the video file is judged to be enabled by the second judgment module, the startup module starts an AVC software decoder. The second decoding module is used for jumping to the recorded position of the AVC hardware decoding process and then continuing the decoding process. The invention further discloses a video decoding method. By utilizing the video decoding terminal and the method, the adaptability of the video decoding is improved.
Description
Technical field
The present invention relates to video decoding techniques field, more particularly to a kind of video decoding terminal and method.
Background technology
In the mobile Internet epoch, with popularizing for intelligent terminal, user constantly pursues the sound of high-quality and regards body
Test, high code check, high-resolution, multichannel, lossless source of sound have become standard configuration, the image quality, fluency to multimedia video
Require more and more higher.
AVC (Advanced Video Coding advanced video codings, be also called H.264) is used as current popular
A kind of digital video coding and lossy compression method form, can be greatly reduced the video data volume, and for most of users'
For visual experience, the image quality of broadcasting with it is initial do not compress video compared with do not significantly decrease.Intelligent terminal all supports AVC
Hard decoder, because the profile (specification) of AVC codings has various (Baseline, Extended, Main, High profile),
Corresponding various ranks level (ultimate resolution, frame per second, code check of presentation code etc.) of every kind of profile, existing AVC is solved firmly
Code is still not perfect enough, and video chip cannot support the file of the AVC coded formats of all profile and level.Additionally, in order to
Decoding efficiency is improved, unlatching video hard decoder can be given tacit consent to when terminal is dispatched from the factory, cause some high encoder complexity, high-resolution, height
Frame per second, high code check video cannot normal play, and AVC software decoders can support nearly all in accordance with ISO and ITU standards
AVC encodes file, it is impossible to gives full play to AVC software full decoder abilities, causes the compatible poor of video playback.
It can be seen that, the video decoding adaptability of AVC codings is poor in prior art.
The content of the invention
Present invention is primarily targeted at proposing a kind of video decoding terminal and method, it is intended to solve the video of AVC codings
File decoding adaptability is poor, to improve the adaptability of video decoding.
To reach above-mentioned purpose, the embodiment of the invention discloses a kind of video decoding terminal, the terminal includes：
First judge module, for when video file play instruction is received, judging whether the video file can enter
Row AVC hardware is decoded；
First decoder module, in the case of being to be in the judged result of first judge module, calls AVC hardware
Decoding, and the AVC hardware decoding process is monitored；
First logging modle, for when the AVC hardware decoding for being monitored occurs abnormal, recording the video file
AVC hardware decoding position；
Second judge module, for judging whether the video file supports that AVC softwares are decoded；
Starting module, for decoding in the case of being, to start AVC softwares when the judged result of second judge module
Device；
Second decoder module, the position that the AVC hardware for jumping to the video file for being recorded is decoded is solved
Code.
Further, first judge module, including：
Reading submodule, for reading the level and profile of the video file,
Determination sub-module, for whether matching for read level and profile and the AVC hardware decoders to be determined.
Further, the AVC software decoders, including Media Player.
Further, the terminal also includes：Second logging modle and return module；
Second logging modle, for the regular or irregular decoded positions for recording the AVC software decoders；
The return module, described the step whether video file can carry out AVC hardware decodings is judged for returning
Suddenly.
Further, the terminal also includes：Release module：
The release module, for after AVC software decoders decoding terminates, discharging the AVC software decoders
Content.
For achieving the above object, a kind of video encoding/decoding method that the present invention is also provided, it is characterised in that methods described includes
Step：
When video file play instruction is received, judge whether the video file can carry out AVC hardware decodings；
If it is, calling AVC hardware to decode, and the AVC hardware decoding process is monitored；
When the AVC hardware decoding for being monitored occurs abnormal, the position of the AVC hardware decoding of the video file is recorded
Put；
Judge whether the video file supports that AVC softwares are decoded；
If it is, starting AVC software decoders；
The position for jumping to the AVC hardware decoding of the video file for being recorded is decoded.
Further, it is described to judge whether the video file carry out AVC hardware decodings, including：
The level and profile of the video file are read,
It is determined that whether the level for being read and profile and the AVC hardware decoders match.
Further, the AVC software decoders, including Media Player.
Further, the position for decoding in the AVC hardware of the video file for jumping to and being recorded is decoded
Afterwards, also include：
The regular or irregular decoded positions for recording the AVC software decoders；
Return and described the step of whether video file can carry out AVC hardware and decode judged.
Further, methods described also includes：
After AVC software decoders decoding terminates, the content of the AVC software decoders is discharged.
A kind of video decoding terminal proposed by the present invention and method, including：When video file play instruction is received, judge
Whether the video file can carry out AVC hardware decodings；If it is, call AVC hardware to decode, and to the AVC hardware solution
Code process is monitored；When the AVC hardware decoding for being monitored occurs abnormal, the AVC hardware of the video file is recorded
The position of decoding；Judge whether the video file supports that AVC softwares are decoded；If it is, starting AVC software decoders；Redirect
Position to the AVC hardware decoding of the video file for being recorded is decoded, and improves the adaptability of video decoding.
Description of the drawings
Fig. 1 is the hardware architecture diagram of the mobile terminal for realizing each embodiment of the invention；
Fig. 2 is the wireless communication system schematic diagram of mobile terminal as shown in Figure 1；
A kind of Fig. 3 positions structural representation of video decoder provided in an embodiment of the present invention；
A kind of schematic flow sheet of Fig. 4 positions video encoding/decoding method provided in an embodiment of the present invention；
Another kind of schematic flow sheet of Fig. 5 positions video encoding/decoding method provided in an embodiment of the present invention；
Another schematic flow sheet of Fig. 6 positions video encoding/decoding method provided in an embodiment of the present invention.
Reference：
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
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 mobile terminal of each embodiment of the invention is realized referring now to Description of Drawings.In follow-up description, use
For represent element such as " module ", " part " or " unit " suffix only for be conducive to the present invention explanation, itself
Not specific meaning.Therefore, " module " can be used mixedly with " part ".Based on embodiments of the invention, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
Mobile terminal can be implemented in a variety of manners.For example, the terminal described in the present invention can include such as moving
Phone, smart phone, notebook computer, digit broadcasting receiver, PDA (personal digital assistant), PAD (panel computer), PMP
The mobile terminal of (portable media player), guider etc. and such as numeral TV, desktop computer etc. are consolidated
Determine terminal.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that, except being used in particular for movement
Outside the element of purpose, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Fig. 1 is that the hardware configuration of the mobile terminal for realizing each embodiment of the invention is illustrated.
Mobile terminal 1 00 can include wireless communication unit 110, A/V (audio/video) input block 120, user input
Unit 130, sensing unit 140, output unit 150, memory 160, interface unit 170, controller 180 and power subsystem 190
Etc..
Fig. 1 shows the mobile terminal 1 00 with various assemblies, it should be understood that being not required for implementing all showing
The component for going out.More or less of component can alternatively be implemented.Will be discussed in more detail below the element of mobile terminal 1 00.
Wireless communication unit 110 can generally include one or more assemblies, and it allows mobile terminal 1 00 and radio communication
Radio communication between system or network.For example, wireless communication unit 110 can include that broadcasting reception module 111, movement are logical
At least one of letter module 112, wireless Internet module 113, short range communication module 114 and location information module 115.
Broadcasting reception module 111 receives broadcast singal and/or broadcast via broadcast channel from external broadcast management server
Relevant information.Broadcast channel can include satellite channel and/or terrestrial channel.Broadcast management server can be generated and sent
The broadcast singal generated before the server or reception of broadcast singal and/or broadcast related information and/or broadcast related information
And send it to the server of terminal.Broadcast singal can include TV broadcast singals, radio signals, data broadcasting
Signal etc..And, broadcast singal may further include the broadcast singal combined with TV or radio signals.Broadcast phase
Pass information can also be provided via mobile communications network, and in this case, broadcast related information can be by mobile communication mould
Block 112 is receiving.Broadcast singal can be present in a variety of manners, and for example, it can be with the electronics of DMB (DMB)
The form of program guide (EPG), the electronic service guidebooks (ESG) of digital video broadcast-handheld (DVB-H) etc. and exist.Broadcast
Receiver module 111 can receive signal broadcast by using various types of broadcast systems.Especially, broadcasting reception module 111
Can be wide by using such as multimedia broadcasting-ground (DMB-T), DMB-satellite (DMB-S), digital video
Broadcast-hand-held (DVB-H), Radio Data System, the received terrestrial digital broadcasting integrated service of forward link media (MediaFLO@)
Etc. (ISDB-T) digit broadcasting system receives digital broadcasting.Broadcasting reception module 111 may be constructed such that and be adapted to provide for extensively
Broadcast the various broadcast systems and above-mentioned digit broadcasting system of signal.Via broadcasting reception module 111 receive broadcast singal and/
Or broadcast related information can be stored in memory 160 (or other types of storage medium).
Mobile communication module 112 sends radio signals to base station (for example, access point, node B etc.), exterior terminal
And at least one of server and/or receive from it radio signal.Such radio signal can be logical including voice
Words signal, video calling signal or the various types of data for sending and/or receiving according to text and/or Multimedia Message.
Wireless Internet module 113 supports the Wi-Fi (Wireless Internet Access) of mobile terminal.The module can be internally or externally
It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved by the module can include WLAN (WLAN) (Wi-Fi), Wibro
(WiMAX), Wimax (worldwide interoperability for microwave accesses), HSDPA (high-speed downlink packet access) etc..
Short range communication module 114 is the module for supporting junction service.Some examples of short-range communication technology include indigo plant
Tooth TM, RF identification (RFID), Infrared Data Association (IrDA), ultra broadband (UWB), purple honeybee TM etc..
Location information module 115 is the module for checking or obtaining the positional information of mobile terminal.Location information module
115 typical case is GPS (global positioning system).According to current technology, GPS calculate from three or more satellites away from
From information and correct time information and for the Information application triangulation for calculating, so as to according to longitude, latitude and height
Degree calculates exactly three-dimensional current location information.Currently, the method for calculating position and temporal information uses three satellites simultaneously
And the error of the position and temporal information for calculating is corrected by using an other satellite.Additionally, GPS can be by real-time
Ground Continuous plus current location information carrys out calculating speed information.
A/V input blocks 120 are used to receive audio or video signal.A/V input blocks 120 can include the He of camera 121
Microphone 122, the static images that 121 pairs, camera is obtained in Video Capture pattern or image capture mode by image capture apparatus
Or the view data of video is processed.Picture frame after process may be displayed on display unit 151.Jing cameras 121 are processed
Picture frame afterwards can be stored in memory 160 (or other storage mediums) or carry out sending out via wireless communication unit 110
Send, two or more cameras 121 can be provided according to the construction of mobile terminal 1 00.Microphone 122 can be in telephone relation mould
Sound (voice data), and energy are received in formula, logging mode, speech recognition mode etc. operational mode via microphone 122
Enough is voice data by such acoustic processing.Audio frequency (voice) data after process can be in the case of telephone calling model
Being converted to can be sent to the form output of mobile communication base station via mobile communication module 112.Microphone 122 can be implemented various
The noise of type eliminates (or suppression) algorithm and is being received and making an uproar of producing during sending audio signal with eliminating (or suppression)
Sound or interference.
User input unit 130 can generate key input data to control mobile terminal 1 00 according to the order of user input
Various operations.User input unit 130 allows the various types of information of user input, and can include keyboard, metal dome,
Touch pad (for example, detection is due to the sensitive component of the change of touched and caused resistance, pressure, electric capacity etc.), roller, shake
Bar etc..Especially, when touch pad is superimposed upon in the form of layer on display unit 151, touch-screen can be formed.
Sensing unit 140 detects the current state of mobile terminal 1 00, and (for example, mobile terminal 1 00 opens or closes shape
State), the presence or absence of contact (that is, touch input), the mobile terminal of the position of mobile terminal 1 00, user for mobile terminal 1 00
100 orientation, the acceleration or deceleration movement of mobile terminal 1 00 and direction etc., and generate for controlling mobile terminal 1 00
The order of operation or signal.For example, when mobile terminal 1 00 is embodied as sliding-type mobile phone, sensing unit 140 can be sensed
The sliding-type phone is opened or closed.In addition, sensing unit 140 can detect power subsystem 190 whether provide electric power or
Whether person's interface unit 170 couples with external device (ED).Sensing unit 140 can include proximity transducer 141.
Interface unit 170 is connected the interface that can pass through with mobile terminal 1 00 as at least one external device (ED).For example,
External device (ED) can include wired or wireless head-band earphone port, external power source (or battery charger) port, wired or nothing
Line FPDP, memory card port, the port for device of the connection with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Identification module can be that storage uses each of mobile terminal 1 00 for verifying user
Kind of information and subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM) can be included
Etc..In addition, the device (hereinafter referred to as " identifying device ") with identification module can take the form of smart card, therefore, know
Other device can be connected via port or other attachment means with mobile terminal 1 00.Interface unit 170 can be used for receive from
The input (for example, data message, electric power etc.) of external device (ED) and the input for receiving is transferred in mobile terminal 1 00
One or more elements can be used for the transmission data between mobile terminal 1 00 and external device (ED).
In addition, when mobile terminal 1 00 is connected with external base, interface unit 170 can serve as allowing to pass through it by electricity
Power from base provide to mobile terminal 1 00 path or can serve as allow from base be input into various command signals pass through its
It is transferred to the path of mobile terminal 1 00.Can serve as recognizing mobile terminal 1 00 from the various command signals or electric power of base input
The signal whether being accurately fitted within base.Output unit 150 is configured to the offer of vision, audio frequency and/or tactile manner
Output signal (for example, audio signal, vision signal, alarm signal, vibration signal etc.).Output unit 150 can include aobvious
Show unit 151, dio Output Modules 152, alarm unit 153 etc..
Display unit 151 may be displayed on the information processed in mobile terminal 1 00.For example, when mobile terminal 1 00 is in electricity
During words call mode, display unit 151 can show and converse or other communicate (for example, text messaging, multimedia files
Download etc.) related user interface (UI) or graphic user interface (GUI).When mobile terminal 1 00 is in video calling pattern
Or during image capture mode, display unit 151 can show the image of capture and/or the image of reception, illustrate video or figure
UI or GUI of picture and correlation function etc..
Meanwhile, when the display unit 151 and touch pad touch-screen with formation superposed on one another in the form of layer, display unit
151 can serve as input unit and output device.Display unit 151 can include liquid crystal display (LCD), thin film transistor (TFT)
In LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc. at least
It is a kind of.Some in these displays may be constructed such that transparence to allow user from outside viewing, and this is properly termed as transparent
Display, typical transparent display can be, for example, TOLED (transparent organic light emitting diode) display etc..According to specific
The embodiment wanted, mobile terminal 1 00 can include two or more display units (or other display devices), for example, move
Dynamic terminal 100 can include outernal display unit (not shown) and inner display unit (not shown).Touch-screen can be used to detect
Touch input pressure and touch input position and touch input area.
Dio Output Modules 152 can be in mobile terminal 1 00 in call signal reception pattern, call mode, record mould
It is that wireless communication unit 110 is received or in memory when under the isotypes such as formula, speech recognition mode, broadcast reception mode
In 160 store voice data transducing audio signal and be output as sound.And, dio Output Modules 152 can provide with
(for example, call signal receives sound, message sink sound etc. to the audio output of the specific function correlation that mobile terminal 1 00 is performed
Deng).Dio Output Modules 152 can include loudspeaker, buzzer etc..
Alarm unit 153 can provide output so that event is notified to mobile terminal 1 00.Typical event can be with
Including calling reception, message sink, key signals input, touch input etc..In addition to audio or video is exported, alarm unit
153 can in a different manner provide output with the generation of notification event.For example, alarm unit 153 can be in the form of vibrating
Output is provided, when calling, message or some other entrance communication (incoming communication) are received, alarm list
Unit 153 can provide tactile output (that is, vibrating) to notify to user.By providing such tactile output, even if
When the mobile phone of user is in the pocket of user, user also can recognize that the generation of various events.Alarm unit 153
The output of the generation of notification event can be provided via display unit 151 or dio Output Modules 152.
Memory 160 can store software program for the process and control operation performed by controller 180 etc., Huo Zheke
With the data (for example, telephone directory, message, still image, video etc.) for temporarily storing own Jing outputs or will export.And
And, memory 160 can be storing the vibration of various modes with regard to exporting when touching and being applied to touch-screen and audio signal
Data.
Memory 160 can include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, many
Media card, card-type memory (for example, SD or DX memories etc.), random access storage device (RAM), static random-access storage
Device (SRAM), read-only storage (ROM), Electrically Erasable Read Only Memory (EEPROM), programmable read only memory
(PROM), magnetic storage, disk, CD etc..And, mobile terminal 1 00 can perform memory with by network connection
The network storage device cooperation of 160 store function.
The overall operation of the generally control mobile terminal of controller 180.For example, controller 180 is performed and voice call, data
The related control of communication, video calling etc. and process.In addition, controller 180 can be included for reproducing (or playback) many matchmakers
The multi-media module 181 of volume data, multi-media module 181 can be constructed in controller 180, or is so structured that and control
Device 180 is separated.Controller 180 can be with execution pattern identifying processing, by the handwriting input for performing on the touchscreen or picture
Draw input and be identified as character or image.
Power subsystem 190 receives external power or internal power under the control of controller 180 and provides operation each unit
Appropriate electric power needed for part and component.
Various embodiments described herein can be with using such as computer software, hardware or its any combination of calculating
Machine computer-readable recording medium is implementing.For hardware is implemented, embodiment described herein can be by using application-specific IC
(ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can
Programming gate array (FPGA), processor, controller, microcontroller, microprocessor, it is designed to perform function described herein
Implementing, in some cases, such embodiment can be implemented at least one in electronic unit in controller 180.
For software is implemented, the embodiment of such as process or function can with allow to perform the single of at least one function or operation
Software module is implementing.Software code can be come by the software application (or program) write with any appropriate programming language
Implement, software code can be stored in memory 160 and be performed by controller 180.
So far, own Jing describes mobile terminal 1 00 according to its function.In addition, the mobile terminal 1 00 in the embodiment of the present invention
Can be such as folded form, board-type, oscillating-type, sliding-type and other various types of mobile terminals, specifically not do herein
Limit.
As shown in Figure 1 mobile terminal 1 00 may be constructed such that using via frame or packet transmission data it is all if any
Line and wireless communication system and satellite-based communication system are operating.
The communication system that mobile terminal wherein of the invention is operable to is described referring now to Fig. 2.
Such communication system can use different air interface and/or physical layer.For example, used by communication system
Air interface includes such as frequency division multiple access (FDMA), time division multiple acess (TDMA), CDMA (CDMA) and universal mobile communications system
System (UMTS) (especially, Long Term Evolution (LTE)), global system for mobile communications (GSM) etc..As non-limiting example, under
The description in face is related to cdma communication system, but such teaching is equally applicable to other types of system.
With reference to Fig. 2, cdma wireless communication system can include multiple intelligent terminals 100, multiple base stations (BS) 270, base station
Controller (BSC) 275 and mobile switching centre (MSC) 280.MSC 280 is configured to and Public Switched Telephony Network (PSTN)
290 form interface.MSC 280 is also structured to be formed with the BSC 275 that can be couple to base station 270 via back haul link and connects
Mouthful.If any one that back haul link can be in the interface that Ganji knows is constructing, the interface can include such as Europe mark
Quasi- high power capacity digital circuit/Unite States Standard high power capacity digital circuit (E1/T1), asynchronous transfer mode (ATM), procotol
(IP), point-to-point protocol (PPP), frame relay, high-bit-rate digital subscriber line road (HDSL), Asymmetrical Digital Subscriber Line (ADSL)
Or all kinds digital subscriber line (xDSL).It will be appreciated that as shown in Figure 2 system can include multiple BSC 275.
Each BS 270 can service one or more subregions (or region), by multidirectional antenna or the day of sensing specific direction
Each subregion that line is covered is radially away from BS 270.Or, each subregion can be by for two of diversity reception or more
Multiple antennas are covered.Each BS 270 may be constructed such that the multiple frequency distribution of support, and each frequency distribution has specific frequency
Spectrum (for example, 1.25MHz, 5MHz etc.).
What subregion and frequency were distributed intersects can be referred to as CDMA Channel.BS 270 can also be referred to as base station transceiver
System (BTS) or other equivalent terms.In this case, term " base station " can be used for broadly representing single BSC
275 and at least one BS 270.Base station can also be referred to as " cellular station ".Or, each subregion of specific BS 270 can be claimed
For multiple cellular stations.
As shown in Figure 2, broadcast singal is sent to broadcsting transmitter (BT) 295 mobile terminal operated in system
100.As shown in Figure 1 broadcasting reception module 111 is arranged at mobile terminal 1 00 to receive the broadcast sent by BT 295
Signal.In fig. 2 it is shown that several global positioning system (GPS) satellites 300.Satellite 300 helps position multiple mobile terminals
At least one of 100.
In fig. 2, multiple satellites 300 are depicted, it is understood that be, it is possible to use any number of satellite obtains useful
Location information.Location information module 115 as shown in Figure 1 is (such as：GPS) it is generally configured to coordinate to obtain with satellite 300
The location information that must be wanted.Substitute GPS tracking techniques or outside GPS tracking techniques, it is possible to use can track mobile whole
Other technologies of the position at end.In addition, at least one gps satellite 300 can optionally or additionally process satellite dmb biography
It is defeated.
Used as a typical operation of wireless communication system, BS 270 receives the reverse strand from various mobile terminal 1s 00
Road signal.Mobile terminal 1 00 generally participates in call, information receiving and transmitting and other types of communication.Each of certain base station reception is anti-
Processed in specific BS 270 to link signal.The data of acquisition are forwarded to the BSC 275 of correlation.BSC provides logical
Words resource allocation and the mobile management function of the coordination including the soft switching process between BS 270.BSC 275 will also be received
Data be routed to MSC 280, its provide for PSTN 290 formed interface extra route service.Similarly, PSTN
290 form interfaces with MSC 280, and MSC and BSC 275 form interface, and BSC 275 correspondingly controls BS 270 with by forward direction
Link signal is sent to mobile terminal 1 00.
Based on above-mentioned mobile terminal hardware configuration and communication system, the inventive method each embodiment is proposed.
First, the present invention proposes a kind of video decoder 310.
As shown in figure 3, for a kind of structural representation of video decoder provided in an embodiment of the present invention, in the present embodiment
In, the video decoder 310 can be divided into one or more modules, and one or more of modules are stored in institute
It is in stating memory 160 and performed by one or more controllers (being the controller 180 in the present embodiment), to complete this
Invention.For example, in figure 3, described video decoder 310 can be divided into the first judge module 301, first and decode mould
Block 302, the first logging modle 303, the second judge module 304, starting module 305, the second decoder module 306.It is of the invention alleged
Module refer to a kind of series of computation machine programmed instruction section that can complete specific function, it is more described more suitable for description than program
Implementation procedure of the video decoder 310 in the mobile terminal 10.Below by the tool of just above-mentioned each functional module 301-306
Body function is described in detail.
First judge module 301, for when video file play instruction is received, whether judging the video file
AVC hardware decodings can be carried out.
First decoder module 302, in the case of being to be in the judged result of first judge module, calls
AVC higher level codes hardware is decoded, and the AVC hardware decoding process is monitored.
First logging modle 303, for when the AVC hardware decoding for being monitored occurs abnormal, record to be described
The position of the AVC hardware decoding of video file.
Second judge module 304, for judging whether the video file supports that AVC softwares are decoded.
The starting module 305, in the case of being to be when the judged result of second judge module, starts AVC
Software decoder.
Second decoder module 306, the position that the AVC hardware for jumping to the video file for being recorded is decoded
Decoded.
In other embodiments, second judge module 304 judges that the video file does not support that AVC softwares are decoded
When, stop playing the video file.
You need to add is that, in one of which embodiment, first judge module 301, including：Reading submodule
With determination sub-module (not shown)；
Reading submodule, for reading rank level and specification profile of the video file.
Determination sub-module, for whether matching for read level and profile and the AVC hardware decoders to be determined.
You need to add is that, in one of which embodiment, the AVC software decoders, including multimedia player
Media Player。
It will be appreciated by persons skilled in the art that when the order for starting video playback is received, first judging whether energy
AVC hardware decodings are enough carried out, if it can, directly carry out hardware decoding playing, and playing process is persistently monitored；If can not
With, or hardware decoding broadcasting appearance exception, record the position of video playback.Judge whether to support the decoding of AVC softwares, if
Hold, start the decoding of AVC softwares, specific AVC softwares decoding it may be said that Media player, are decoded to video and are played,
Broadcasting uses display unit 151 and is shown.
In practical application, video encoding/decoding method can be defined as class, such as AVC Adaptive Decoder classes are used for
Monitor and capture the decoding error of AVC hardware, exception, and record, calculate the document location that decoding malfunctions, initialize and start AVC
Soft Decoder software decoders collaboration decoding, to complete high compression complexity, high code check, high-resolution decoding.
Exemplary, the interface called for AVC Adaptive Decoder modules is defined, Main is supported in the decoding of AVC hardware
The file of Profile and Level 3.2, it is maximum to be distinguished as 1280x1024, maximal rate and be for 80Mbps, maximum frame per second
42fps.And the video file of the AVC to be played codings meets following 4 conditions for the moment：Profile is High, or code check is
200Mbps, or resolution ratio is 1920x1088, or frame per second is 60fps, will be unable to support hardware decoding, and then cause APP without sound
Should, mistake is returned, play not smooth.Now, triggering enables AVC Soft Decoder (decoding of AVC softwares), to improve hardware
The deficiency of decoding, plays the advantage of software full decoder.Exemplary, the interface of definition can be：detect AVC Hw
Decoder Error () monitors AVC hardware decoding errors；Compute Hw DecodeFailed Pos () computing hardwares are decoded
The position of error, passes to player, to trigger the normal operation of soft decoding；Create AVC Adaptive Decoder
(audio file handle) creates AVC adaptive decoders；Seek Video File () jumps to video file and decodes
Wrong position, enables AVC software decoders；StartAVC Adaptive Decoder (audio file handle) AVC is certainly
Adapt to decoder and start decoding.
In practical application, dynamic link libraries (.so) can also be generated and used for multiple platforms：Android.mk is literary for configuration
Part, arranges LOCAL_MODULE=AVCAdaptiveDecoder, reference to variable include $ ((BUILD_SHARED_
LIBRARY)；According to configuration attribute, compiling generates public dynamic base libAVCAdaptiveDecoder.so for multiple
Different platform is called；The path that dynamic base is generated：/ out/target/ entry names/system/lib/
libAVCAdapterDecoder.so。
It can be seen that, using the embodiment shown in Fig. 3 of the present invention, when video is when selecting hardware decoding to go wrong, can sentence
It is disconnected whether to carry out software decoding, if software decoding can be carried out directly.Solve single pass hardware in prior art
The poor problem of decoding adaptability.This improves the adaptability of video decoding.
Further, on the basis of embodiment illustrated in fig. 3, increase：Second logging modle and return module (are not shown in figure
Go out)；
Second logging modle, for the regular or irregular decoded positions for recording the AVC software decoders.
The return module, described the step whether video file can carry out AVC hardware decodings is judged for returning
Suddenly.
It can be seen that, using embodiments of the invention, during video carries out software decoding, still can go to judge that this is regarded
Whether the position that frequency is played can carry out hardware decoding, if it can, carrying out hardware decoding according to the record played.Accordingly, it is capable to
Enough improve the efficiency of video playback.
Further, on the basis of embodiment illustrated in fig. 3, increase：Release module (not shown).
The release module, for after AVC software decoders decoding terminates, discharging the AVC software decoders
Content.
Stagger the time when monitoring captures AVC hardware and decodes, error Code are passed into Media Player；When there is support
During the software decoder of this document, AVC software decoders are created and started, go out fault from hard decoder and continue to decode broadcasting video text
Part.Exemplary, quote header file lib AVC Adaptive Decoder.h in the play control module of Media Player；
LOCAL_SHARED_LIBRARIES is quoted in the Android.mk of video file parsing, decoding framework stage fright modules
+=lib AVC Adaptive Decoder；The call flow of AVC adaptive decoders, first calls detect AVC Hw
When Decoder Error () monitors the decoding exception error of AVC hardware, compute Hw Decod Failed Pos are recalled
() calculates the position of hard decoder error, then calls create AVC Adaptive Decoder () to create AVC adaptive des
Code device, seek Video File () jumps to the position of video file decoding error, and next calls start AVC
Adaptive Decoder () AVC adaptive decoders start decoding, finally call release AVC Adaptive
AVC adaptive decoders are destroyed in Decoder () releases.
In practical application, opening or closing for AVC adaptive decoders can also be arranged by adb ports, can flexibly be switched
Adaptive decoding module.
Adb shell set prop video.avc.adaptivedecoder.enable 1 open AVC adaptive des
Code device；
Adb shell set prop video.avcadaptivedecoder.enable 0 close AVC adaptive decodings
Device.
It can be seen that, using the embodiment shown in the present invention, after video decoding is carried out by software, release software decoder
Content, is to carry out software next time to decode ready, improves the efficiency of software decoding.
By above-mentioned functions module 301-306, video decoder 310 proposed by the invention judges mould by first
Block, judges whether the video file can carry out AVC hardware decodings；If it is, call AVC hardware to decode, and to the AVC
Hardware decoding process is monitored；When the AVC hardware decoding for being monitored occurs abnormal, the video file is recorded
The position of AVC hardware decoding；Judge whether the video file supports that AVC softwares are decoded；If it is, starting the decoding of AVC softwares
Device；The position for jumping to the AVC hardware decoding of the video file for being recorded is decoded, and improves the adaptation of video decoding
Property.
Further, the present invention proposes a kind of video encoding/decoding method.
As shown in figure 4, be a kind of schematic flow sheet of video encoding/decoding method provided in an embodiment of the present invention, in the present embodiment
In, according to different demands, execution sequence can change the step of flow chart shown in Fig. 4, and some steps can be omitted.It is described
Method includes step：
S401, when video file play instruction is received, judges whether the video file can carry out AVC hardware solutions
Code；If being carried out S402.
S402, calls AVC hardware to decode, and the AVC hardware decoding process is monitored.
S403, when the AVC hardware decoding for being monitored occurs abnormal, records the AVC hardware solutions of the video file
The position of code.
S404, judges whether the video file supports that AVC softwares are decoded；If not, S405 is performed, if it is, performing
Step S406.
S405, stops playing the video file.
S406, starts AVC software decoders.
S407, the position for jumping to the AVC hardware decoding of the video file for being recorded is decoded.
It is described to judge whether the video file carry out AVC hardware decodings in one of which embodiment, bag
Include：
The level and profile of the video file are read,
It is determined that whether the level for being read and profile and the AVC hardware decoders match.
In one of which embodiment, the AVC software decoders, including multimedia player MediaPlayer.
It will be appreciated by persons skilled in the art that when the order for starting video playback is received, first judging whether energy
AVC hardware decodings are enough carried out, if it can, directly carry out hardware decoding playing, and playing process is persistently monitored；If can not
With, or hardware decoding broadcasting appearance exception, record the position of video playback.Judge whether to support the decoding of AVC softwares, if not
Support, play and stop；If supported, start the decoding of AVC softwares, video is decoded and is played, broadcasting uses display
Unit 151 is shown.
In practical application, video encoding/decoding method can be defined as class, such as AVC Adaptive Decoder classes are used for
Monitor and capture the decoding error of AVC hardware, exception, and record, calculate the document location that decoding malfunctions, initialize and start AVC
Soft Decoder software decoders collaboration decoding, to complete high compression complexity, high code check, high-resolution decoding.
Exemplary, the interface called for AVC Adaptive Decoder modules is defined, Main is supported in the decoding of AVC hardware
The file of Profile and Level 3.2, it is maximum to be distinguished as 1280x1024, maximal rate and be for 80Mbps, maximum frame per second
42fps.And the video file of the AVC to be played codings meets following 4 conditions for the moment：Profile is High, or code check is
200Mbps, or resolution ratio is 1920x1088, or frame per second is 60fps, will be unable to support hardware decoding, and then cause APP without sound
Should, mistake is returned, play not smooth.Now, triggering enables AVC Soft Decoder (decoding of AVC softwares), to improve hardware
The deficiency of decoding, plays the advantage of software full decoder.Exemplary, the interface of definition can be：detect AVC Hw
Decoder Error () monitors AVC hardware decoding errors；Compute Hw Decode Failed Pos () computing hardware solutions
The position of code error, passes to player, to trigger the normal operation of soft decoding；Create AVC Adaptive Decoder
(audio file handle) creates AVC adaptive decoders；Seek Video File () jumps to video file and decodes
Wrong position, enables AVC software decoders；StartAVC Adaptive Decoder (audio file handle) AVC is certainly
Adapt to decoder and start decoding.
In practical application, dynamic link libraries (.so) can also be generated and used for multiple platforms：Android.mk is literary for configuration
Part, arranges LOCAL_MODULE=AVCAdaptiveDecoder, reference to variable include $ ((BUILD_SHARED_
LIBRARY)；According to configuration attribute, compiling generates public dynamic base libAVCAdaptiveDecoder.so for multiple
Different platform is called；The path that dynamic base is generated：/ out/target/ entry names/system/lib/
libAVCAdapterDecoder.so。
It can be seen that, using the embodiment shown in Fig. 4 of the present invention, when video is when selecting hardware decoding to go wrong, can sentence
It is disconnected whether to carry out software decoding, if software decoding can be carried out directly.Solve single pass hardware in prior art
The poor problem of decoding adaptability.This improves the adaptability of video decoding.
Another kind of schematic flow sheet of Fig. 5 positions video encoding/decoding method provided in an embodiment of the present invention, in embodiment illustrated in fig. 4
On the basis of, increase step：S501、S502.
S501, the regular or irregular decoded positions for recording the AVC software decoders.
S502, returns described the step of whether video file can carry out AVC hardware and decode judged.
Because the decoding of AVC hardware has certain advantage relative to software decoding in decoding efficiency each side, in software solution
During code, the position of regular or irregular carrying recorded decoding can be passed through, judge whether that hardware solution can be carried out again
Code, to realize improving the purpose of video decoding.
It can be seen that, using the embodiment shown in Fig. 5 of the present invention, during video carries out software decoding, still can go
Whether can carry out hardware decoding, if it can, carrying out hardware decoding according to the record played if judging the position of the video playback.
Therefore, it is possible to improve the efficiency of video decoding.
Another schematic flow sheet of Fig. 6 positions video encoding/decoding method provided in an embodiment of the present invention, in embodiment illustrated in fig. 4
On the basis of, increase step S601.
S601, after AVC software decoders decoding terminates, discharges the content of the AVC software decoders.
Stagger the time when monitoring captures AVC hardware and decodes, error Code are passed into Media Player；When there is support
During the software decoder of this document, AVC software decoders are created and started, go out fault from hard decoder and continue to decode broadcasting video text
Part.Exemplary, quote header file lib AVC Adaptive Decoder.h in the play control module of Media Player；
LOCAL_SHARED_LIBRARIES is quoted in the Android.mk of video file parsing, decoding framework stage fright modules
+=lib AVC Adaptive Decoder；The call flow of AVC adaptive decoders, first calls detect AVC Hw
When Decoder Error () monitors the decoding exception error of AVC hardware, compute Hw Decod Failed Pos are recalled
() calculates the position of hard decoder error, then calls create AVC Adaptive Decoder () to create AVC adaptive des
Code device, seek Video File () jumps to the position of video file decoding error, and next calls start AVC
Adaptive Decoder () AVC adaptive decoders start decoding, finally call release AVC Adaptive
AVC adaptive decoders are destroyed in Decoder () releases.
In practical application, opening or closing for AVC adaptive decoders can also be arranged by adb ports, can flexibly be switched
Adaptive decoding module.
Adb shell set prop video.avc.adaptivedecoder.enable 1 open AVC adaptive des
Code device；Adb shell set prop video.avcadaptivedecoder.enable 0 close AVC adaptive decoders.
It can be seen that, using the embodiment shown in Fig. 6 of the present invention, after video decoding is carried out by software, release software decoding
The content of device, is to carry out software next time to decode ready, improves the efficiency of software decoding.
It should be noted that herein, term " including ", "comprising" or its any other variant are intended to non-row
His property is included, so that a series of process, method, article or device including key elements not only include those key elements, and
And also include other key elements being not expressly set out, or also include for this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
Also there is other identical element in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a station terminal equipment (can be mobile phone, computer takes
Business device, air-conditioner, or network equipment etc.) perform method described in each embodiment of the invention.
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 specification 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 terminal, it is characterised in that the terminal includes：
First judge module, for when video file play instruction is received, judging whether the video file can carry out height
Level coding AVC hardware decodings；
First decoder module, in the case of being to be in the judged result of first judge module, calls AVC hardware solutions
Code, and the AVC hardware decoding process is monitored；
First logging modle, for when the AVC hardware decoding for being monitored occurs abnormal, recording the video file
The position of AVC hardware decoding；
Second judge module, for judging whether the video file supports that AVC softwares are decoded；
Starting module, in the case of being to be when the judged result of second judge module, starts AVC software decoders；
Second decoder module, the position that the AVC hardware for jumping to the video file for being recorded is decoded is decoded.
2. terminal according to claim 1, it is characterised in that first judge module, including：
Reading submodule, for reading rank level and specification profile of the video file,
Determination sub-module, for whether matching for read level and profile and the AVC hardware decoders to be determined.
3. terminal according to claim 1, it is characterised in that the AVC software decoders, including multimedia player
Media Player。
4. terminal according to claim 1, it is characterised in that the terminal also includes：Second logging modle and return mould
Block；
Second logging modle, for the regular or irregular decoded positions for recording the AVC software decoders；
The return module, described the step of whether video file can carry out AVC hardware and decode is judged for returning.
5. terminal according to claim 1, it is characterised in that the terminal also includes：Release module：
The release module, for after AVC software decoders decoding terminates, discharging the interior of the AVC software decoders
Hold.
6. a kind of video encoding/decoding method, it is characterised in that methods described includes step：
When video file play instruction is received, judge whether the video file can carry out advanced video coding AVC hardware
Decoding；
If it is, calling AVC hardware to decode, and the AVC hardware decoding process is monitored；
When the AVC hardware decoding for being monitored occurs abnormal, the position of the AVC hardware decoding of the video file is recorded；
Judge whether the video file supports that AVC softwares are decoded；
If it is, starting AVC software decoders；
The position for jumping to the AVC hardware decoding of the video file for being recorded is decoded.
7. method according to claim 6, it is characterised in that described to judge whether the video file carry out AVC
Hardware is decoded, including：
Rank level and specification profile of the video file are read,
It is determined that whether the level for being read and profile and the AVC hardware decoders match.
8. method according to claim 6, it is characterised in that the AVC software decoders, including multimedia player
Media Player。
9. method according to claim 6, it is characterised in that in the video file for jumping to and being recorded
After the position of AVC hardware decoding is decoded, also include：
The regular or irregular decoded positions for recording the AVC software decoders；
Return and described the step of whether video file can carry out AVC hardware and decode judged.
10. method according to claim 6, it is characterised in that methods described also includes：
After AVC software decoders decoding terminates, the content of the AVC software decoders is discharged.
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|---|---|---|---|
| CN201610931638.6A CN106658174A (en) | 2016-10-31 | 2016-10-31 | Video decoding terminal and method |
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| CN114339257A (en) * | 2022-01-26 | 2022-04-12 | 稿定（厦门）科技有限公司 | Method and apparatus for decoding video file |
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Application publication date: 20170510 |