CN104980788B - Video encoding/decoding method and device - Google Patents
Video encoding/decoding method and device Download PDFInfo
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- CN104980788B CN104980788B CN201510073425.XA CN201510073425A CN104980788B CN 104980788 B CN104980788 B CN 104980788B CN 201510073425 A CN201510073425 A CN 201510073425A CN 104980788 B CN104980788 B CN 104980788B
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Abstract
The present invention provides a kind of video encoding/decoding method, including：The type information for obtaining mobile terminal, judge the mobile terminal type information whether with the information match in white list, record has the type information for supporting the decoded mobile terminal of hardware in the white list；If mismatching, pass through software decoder decoding video；If matching, corresponding video is obtained according to the version information of the processor of the mobile terminal and decodes library, and library is decoded according to the video and judges whether the format of the video is preset video coding standard format；If so, the video is decoded by hardware decoder, if it is not, then executing the step of being somebody's turn to do through software decoder decoding video.In addition, the present invention also provides a kind of video decoders.The decoded flexibility of video and success rate can be improved in above-mentioned video encoding/decoding method and device.
Description
Technical field
The present invention relates to field of computer technology more particularly to a kind of video encoding/decoding methods and device.
Background technology
Video decoding process based on mobile terminal generally comprises soft solution and hard two kinds of solution.Hard solution namely hardware decoding are
Refer to by the multi-media processing unit of the chip of mobile terminal be decoded in the way of.Soft solution namely software decoding, refer to utilizing
Decoding program is in such a way that primary processor is decoded.
But decoded using software merely, although more stable effect can be obtained, solved when playing complicated video
Code speed can influence the fluency of video playing and compare power consumption more slowly, and it is very high to use hardware to decode then error probability merely.
Invention content
In view of this, the present invention provides a kind of video encoding/decoding method and device, can be improved the decoded flexibility of video and at
Power.
A kind of video encoding/decoding method provided in an embodiment of the present invention, including：
Obtain mobile terminal type information, judge the mobile terminal type information whether with the information in white list
Match, record has the type information for supporting the decoded mobile terminal of hardware in the white list；
If mismatching, pass through software decoder decoding video；
If matching, corresponding video is obtained according to the version information of the processor of the mobile terminal and decodes library, and
Library, which is decoded, according to the video judges whether the format of the video is preset video coding standard format；
If so, decoding the video by hardware decoder, regarded if it is not, then executing described decoded by software decoder
The step of frequency.
A kind of video decoder provided in an embodiment of the present invention, including：
Acquisition module, the type information for obtaining mobile terminal；
Judgment module, for judge the mobile terminal that the acquisition module obtains type information whether with white list
In information match, record has the type information for supporting the decoded mobile terminal of hardware in the white list；
Decoder module is regarded if the judging result for the judgment module is to mismatch by software decoder decoding
Frequently；
The acquisition module, if the judging result for being additionally operable to the judgment module is to match, according to described mobile whole
The version information of the processor at end obtains corresponding video and decodes library；
The judgment module is additionally operable to the video obtained according to the acquisition module decoding library and judges the video
Whether format is preset video coding standard format；
The decoder module is decoded if the judging result for being additionally operable to the judgment module is yes by hardware decoder
The video, if it is not, the step of then described in execution by software decoder decoding video.
Video encoding/decoding method and device provided in an embodiment of the present invention pass through the type according to mobile terminal before video decoding
Number information in white list the match condition of information and the format of video to be decoded whether be preset video encoding standard
Format selects corresponding decoding process, can be that the video determines most suitable decoding process, improve the decoded flexibility of video
And success rate.
For the above and other objects, features and advantages of the present invention can be clearer and more comprehensible, preferred embodiment cited below particularly,
And coordinate institute's accompanying drawings, it is described in detail below.
Description of the drawings
Fig. 1 shows a kind of structure diagram of mobile terminal；
Fig. 2 is the flow chart for the video encoding/decoding method that first embodiment of the invention provides；
Fig. 3 is the applied environment figure for the video encoding/decoding method that first embodiment of the invention provides；
Fig. 4 is the flow chart for the video encoding/decoding method that second embodiment of the invention provides；
Fig. 5 is the flow chart of a step in the video encoding/decoding method that second embodiment of the invention provides；
Fig. 6 is the flow chart of another step in the video encoding/decoding method that second embodiment of the invention provides；
Fig. 7 is the structural schematic diagram for the video decoder that third embodiment of the invention provides；
Fig. 8 is the structural schematic diagram for the video decoder that fourth embodiment of the invention provides.
Specific implementation mode
Further to illustrate that the present invention is the technological means and effect realized predetermined goal of the invention and taken, below in conjunction with
Specific implementation mode, structure, feature and its effect according to the present invention is described in detail as after in attached drawing and preferred embodiment.
Fig. 1 shows a kind of structure diagram of mobile terminal.As shown in Figure 1, mobile terminal 200 includes：Memory 202,
Storage control 204, one or more (one is only shown in figure) processors 206, Peripheral Interface 208, radio-frequency module 210, sound
Frequency module 212, display module 214, key-press module 216 and hardware decoder 218.These components pass through one or more communication
Bus/signal wire 220 mutually communicates.
It is appreciated that structure shown in FIG. 1 is only to illustrate, mobile terminal 200 may also include it is more than shown in Fig. 1 or
Less component, or with the configuration different from shown in Fig. 1.Each component shown in Fig. 1 may be used hardware, software or its
Combination is realized.
Memory 202 can be used for storing software program and module, as in the embodiment of the present invention video encoding/decoding method and
Corresponding program instruction/the module of device, processor 206 are stored in software program and module in memory 202 by operation,
To perform various functions application and data processing, that is, realize above-mentioned video encoding/decoding method.
Memory 202 may include high speed random access memory, may also include nonvolatile memory, such as one or more magnetic
Property storage device, flash memory or other non-volatile solid state memories.In some instances, memory 202 can further comprise
The memory remotely located relative to processor 206, these remote memories can pass through network connection to mobile terminal 200.
The example of above-mentioned network includes but not limited to internet, intranet, LAN, mobile radio communication and combinations thereof.Processor
206 and other possible components the access of memory 202 can be carried out under the control of storage control 204.
Various softwares in 206 run memory 202 of processor, instruction with execute the various functions of mobile terminal 200 with
And carry out data processing.
Peripheral Interface 208 is used to couple various external equipments to CPU and memory 202.
In some embodiments, storage control 204, processor 206 and Peripheral Interface 208 can be in one single chips
It realizes.In some other example, they can be realized by independent chip respectively.
Radio-frequency module 210 is used to receive and transmit electromagnetic wave, realizes the mutual conversion of electromagnetic wave and electric signal, thus with
Communication network or other equipment are communicated.Radio-frequency module 210 may include the various existing electricity for executing these functions
Circuit component, for example, antenna, RF transceiver, digital signal processor, encryption/deciphering chip, subscriber identity module (SIM) card,
Memory etc..Radio-frequency module 210 can be communicated or be led to various networks such as internet, intranet, wireless network
Wireless network is crossed to be communicated with other equipment.Above-mentioned wireless network may include cellular telephone networks, WLAN or
Metropolitan Area Network (MAN).Above-mentioned wireless network can use various communication standards, agreement and technology, the including but not limited to whole world mobile logical
Letter system (Global System for Mobile Communication, GSM), enhanced mobile communication technology
(Enhanced Data GSM Environment, EDGE), Wideband CDMA Technology (wideband code division
Multiple access, W-CDMA), Code Division Multiple Access (Code division access, CDMA), time division multiple access technology
(time division multiple access, TDMA), bluetooth, adopting wireless fidelity technology (Wireless, Fidelity,
WiFi) (such as American Institute of Electrical and Electronics Engineers's standard IEEE 802.11a, IEEE802.11b, IEEE802.11g and/or
IEEE802.11n), the networking telephone (Voice over internet protocol, VoIP), worldwide interoperability for microwave accesses
(Worldwide Interoperability for Microwave Access, Wi-Max), other for mail, Instant Messenger
The agreement and any other suitable communications protocol of letter and short message, or even may include that those are not developed currently yet
Agreement.
Audio-frequency module 212 provides a user audio interface, may include that one or more microphones, one or more raises
Sound device and voicefrequency circuit.Voicefrequency circuit receives voice data from Peripheral Interface 208, and voice data is converted to power information,
Power information is transmitted to loud speaker.Power information is converted to the sound wave that human ear can be heard by loud speaker.Voicefrequency circuit is also from microphone
Place receives power information, converts electrical signals to voice data, and by data transmission in network telephony to Peripheral Interface 208 with into advancing one
The processing of step.Audio data can obtain from memory 202 or by radio-frequency module 210.In addition, audio data can also
It stores into memory 202 or is sent by radio-frequency module 210.In some instances, audio-frequency module 212 may also include
One earphone broadcasts hole, for providing audio interface to earphone or other equipment.
Display module 214 provides an output interface between mobile terminal 200 and user, shows that video is defeated to user
Go out, the content of these videos output may include word, figure, video and its arbitrary combination.Some outputs are the result is that correspond to one
A little user interface objects.It should be understood that display module 214 can also provide one simultaneously between mobile terminal 200 and user
A output and input interface.Specifically, other than showing video output to user, display module 214 also receives the defeated of user
Enter, for example, user the gesture operations such as click, sliding, so that user interface object responds the input of these users.Inspection
It can be based on resistance-type, condenser type or any other possible touch control detection technology to survey technology input by user.Show mould
The specific example of 214 display unit of block includes but is not limited to liquid crystal display or light emitting polymer displays.
Key-press module 216 equally provides user's interface inputted to mobile terminal 200, and user can be by pressing not
Same button is so that mobile terminal 200 executes different functions.
Hardware decoder 218, is used for decoding video, and specific example includes but is not limited to multimedia, audio, video decoding
Chip.
Mobile terminal 200 may include：Android or other similar operations systems are installed and support video playing, network number
According to transmission and smart mobile phone, tablet computer, E-book reader, MP4 (Moving Picture with browser environment
Experts Group Audio Layer IV, dynamic image expert's compression standard audio level 4) it is player, on knee portable
Computer, vehicle-mounted computer, wearable device, navigator etc..
First embodiment
Fig. 2 is the flow chart for the video encoding/decoding method that first embodiment of the invention provides.This method can be by shown in FIG. 1
Mobile terminal 200 realizes video decoding.As shown in figure 3, this method includes：
Step S101 obtains the type information of mobile terminal；
In this present embodiment, browser is preset in mobile terminal 200, it can be specified by running browser acquisition user
Video, then execute each step in the present embodiment, realize decoding and broadcasting to the video.Wherein, user specifies
Video is either the Online Video for being stored in server can also be to be stored in local offline video.Mobile terminal 200
Include the version information of mobile terminal 200 in type information.
Step S102, judge the mobile terminal type information whether with the information match in white list, the white list
Middle record has the type information for supporting the decoded mobile terminal of hardware；
Record has the type information that can support the decoded one or more mobile terminals of hardware after tested in white list.It will move
The type information of dynamic terminal 200 is matched one by one with the information recorded in white list, when include in the white list it is a plurality of can
Support the matching for having a type information and the type information of mobile terminal 200 in the type information of the decoded mobile terminal of hardware
Degree is more than preset value, it is determined that the type information of mobile terminal 200 and the information match in the white list, mobile terminal
200 support hardware decoding；Otherwise, it determines the type information of mobile terminal 200 is mismatched with the information in the white list, it is mobile whole
Hardware is not supported to decode in end 200.
If mismatching, S103 is thened follow the steps；If matching, S104 is thened follow the steps.
Step S103 passes through software decoder decoding video；
When the information in the type information of mobile terminal 200 and the white list mismatches, decoded by software decoder
Video.Wherein, software decoder can be, but not limited to include：FFMpeg (Fast Forward Mpeg, it is a kind of cross-platform more
Media handling tool) decoder, VLC multimedia players (Visible Light Communication) etc..For example, when moving
When the type information of dynamic terminal 200 is mismatched with the information in the white list, then it can be solved by preset browser execution FFMepg
The video that code device decoding user specifies.
Step S104 obtains corresponding video according to the version information of the processor of the mobile terminal and decodes library；
The processor of mobile terminal can be, but not limited to：Arm processor (Advanced RISC Machines, it is high
The classical instruction set machine of grade), Intel ATOM processor (Chineses： Atom processor) or other similar places
Manage device.
Specifically, when the information match in the type information of mobile terminal 200 and the white list, then by preset clear
Device of looking at obtains the version information of the arm processor of mobile terminal 200, and obtaining corresponding video according to the version information decodes library.
Step S105 decodes library according to the video and judges whether the format of the video is preset video coding standard format；
Preset video encoding standard is preferably H.264.H.264 it is a kind of high-performance encoding and decoding agreement, is International standardization
Tissue (ISO) and International Telecommunication Union (ITU) propose jointly after MPEG4 (Moving Picture Experts Group4,
Dynamic image expert group 4) after new-generation digital video compression format.
Specifically, the video that library decoding user specifies is decoded by loading and running the video, then according to operation result
Judge whether the format of the video is H.264 format.
If so, thening follow the steps S106；If it is not, thening follow the steps S103.
Step S106 decodes the video by hardware decoder.
Hardware decoder can be, but not limited to：Multimedia, audio, video decoding chip.Specifically, when user is specified
Video format be H.264 format when, then by preset browser indicate hardware decoder decode the video.
Video encoding/decoding method provided in an embodiment of the present invention passes through the type information according to mobile terminal before video decoding
Whether it is preset video coding standard format with the match condition of the information in white list and the format of video to be decoded,
Select corresponding decoding process, can be that the video determine most suitable decoding process, improve the decoded flexibility of video and at
Power.
Second embodiment
Fig. 3 is the flow chart for the video encoding/decoding method that second embodiment of the invention provides.This method can be applied to shown in Fig. 4
Application environment in, and pass through mobile terminal 200 shown in Fig. 4, realize video decoding.In Fig. 4, server 100 is whole with movement
End 200 is located in wired or wireless network, and information exchange is carried out by the network.As shown in figure 3, this method includes：
Step S201 obtains the type information of mobile terminal；
In this present embodiment, browser is preset in mobile terminal 200, it can be specified by running browser acquisition user
Video, then execute each step in the present embodiment, realize decoding and broadcasting to the video.Wherein, user specifies
Video is either the Online Video for being stored in server can also be to be stored in local offline video.Mobile terminal 200
Include the version information of mobile terminal 200 in type information.
The type information of the mobile terminal is sent to server by step S202 so that the server is by the mobile terminal
Type information matched with the information in the white list；
Record has the type information that can support the decoded one or more mobile terminals of hardware after tested in the white list.Tool
Body, the type information of the mobile terminal 200 obtained by preset browser is sent to server 100 by mobile terminal 200, is made
Server 100 is obtained to match the type information with the information in the white list.Server 100 is by the mobile terminal of reception
200 type information is matched one by one with the information recorded in the white list, when include in the white list a plurality of supports
There is the matching degree of a type information and the type information of mobile terminal 200 big in the type information of the decoded mobile terminal of hardware
In preset value, it is determined that the type information of mobile terminal 200 and the information match in the white list, mobile terminal 200
Hold hardware decoding；Otherwise, it determines the type information of mobile terminal 200 is mismatched with the information in the white list, mobile terminal 200
Hardware is not supported to decode；Then, matching result is returned into mobile terminal 200.
Step S203, according to the server return matching result judge the mobile terminal type information whether with white name
Information match in list；
If mismatching, S204 is thened follow the steps；If matching, S206 is thened follow the steps.
Step S204 is sent to the service by software decoder decoding video, and by the type information of the mobile terminal
Device so that the server updates the white list according to the type information of the mobile terminal；
Software decoder can be, but not limited to：FFMpeg decoders, VLC multimedia players etc..
Specifically, if the matching result that server 100 returns is shown in the type information and the white list of mobile terminal 200
Information mismatch, then the video specified of user is decoded by preset browser execution FFMepg decoders.Meanwhile it will be mobile whole
The type information at end 200 is sent to server 100 so that server 100 obtains in the white list not just according to the type information
True information is (such as：The model that there is the mobile terminal of the case of decoding failure in hardware decoding but practical decoding is supported in test
Information), and shielded or deleted.
Step S205, if decoding error occurs in decoding process, switching system player decodes the video；
System plays device be mobile terminal operating system in carry player, passing through software decoder decoding video
During the entire process of, including software decoding initialization and two stages of formal decoding, as long as appointing in the above-mentioned two stage
One stage of meaning receives the error message (e.g., error code) of system return, then switches the system plays by preset browser
Device decodes the video.
Step S206 obtains corresponding video according to the version information of the processor of the mobile terminal and decodes library；
The processor of mobile terminal can be, but not limited to：Arm processor, Intel ATOM processors or other are same
Class processor.
Specifically, if the matching result that server 100 returns is shown in the type information and the white list of mobile terminal 200
Information match, then by preset browser obtain mobile terminal 200 arm processor version information, according to the version
Information obtains corresponding decoding library from server 100.
Step S207 judges whether the format of the video is preset video coding standard format according to the decoding library；
Preset video encoding standard is preferably H.264.H.264 it is a kind of high-performance encoding and decoding agreement, is International standardization
The new-generation digital video compression format after MPEG4 that tissue (ISO) and International Telecommunication Union (ITU) propose jointly.
Specifically, mobile terminal 200 is loaded by preset browser and runs what video decoding library decoding user specified
Then video to be decoded judges whether the format of the video is H.264 format according to operation result.
If so, thening follow the steps S208；If it is not, thening follow the steps S204.
Step S208 executes hardware by hardware decoder and decodes initialization operation, judges hardware decoding initialization behaviour
Whether mistake is occurred；
Specifically, as shown in figure 5, this step specifically may include：
Step S2081 analyzes one group in the video specified video features parameter by the hardware decoder, with
Determine whether the hardware decoder supports the video features parameter；
The specified video features parameter of the group can be, but not limited to：Configuration parameter, level parameters and the width of video
High parameter.Wherein, the configuration parameter of video is used to illustrate that the complexity of Video coding, the level parameters of video to refer to the resolution of video
The range of rate, wide high parameter refer to the width of video and the value of height.
Specifically, mobile terminal 200 by hardware decoder (e.g., multimedia, video, audio decoder chip) from the video
File in obtain above-mentioned video features parameter, read and analyze the video features parameter, with determine the hardware decoder whether
Support the video features parameter.
Step S2082, if not supporting, it is determined that the hardware decodes initialization operation and mistake occurs；
Step S2083 judges that renderer supports what the format of the color of display was supported with the hardware decoder if supporting
Whether video decompression format matches；
When using hardware mode render video, because color when renderer is shown is usually RGB565 formats, and it is hard
The format for the video decompression that part decoder is supported is generally yuv format, and according to different chip yuv format meetings, there are many plant version
This, system would generally have decompressed format matching requirement, for example, the video of the yuv format of some versions can directly switch to
RGB565 formats, and the video of the yuv format of some versions then cannot directly switch to RGB565 formats, and working as directly to convert
When namely when format undesirable (mismatch), system can return to error message.
Step S2084, if mismatching, it is determined that the hardware decodes initialization operation and mistake occurs.
When system returns to error message, determine that renderer supports the format of the color of display to be supported with the hardware decoder
Video decompression format mismatching, the hardware decode initialization operation occur mistake.
If the hardware, which decodes initialization operation, occurs mistake, S204 is thened follow the steps；If the hardware decodes initialization operation
Mistake does not occur, thens follow the steps S209.
Step S209 formally decodes the video by the hardware decoder, judges whether the formal decoding occurs mistake；
Specifically, as shown in fig. 6, this step may include：
Step S2091 decodes the first frame of the video by the hardware decoder, if the front and back video features parameter of decoding
Information is inconsistent, then when reaffirming the video features parameter obtained after decoding, and occurring wrong during confirming, determines
Mistake occurs for the formal decoding；
The video features obtained after the information of the video features parameter sometimes obtained in initialization and decoding are joined
Several information can be inconsistent, for example, video wide high parameter, the value for the width high parameter that when initialization obtains with decode the video
First frame after the value that obtains be likely to inconsistent, hardware decoder can reaffirm that the video obtained after decoding is special at this time
The information for levying parameter, in order to subsequently be correctly decoded.If mistake occurs during reaffirming, it is determined that formal decoding occurs
Mistake.
If the information of the front and back video features parameter of decoding is consistent, or during confirming mistake does not occur for step S2092,
Then continue to decode other frames of the video, and when mistake occurs in decoding process, determines formal decoding generation mistake.
If the letter of the video features parameter obtained after the information of the video features parameter obtained when initialization and decoding
Breath is consistent, or mistake does not occur during the information of the video features parameter obtained after reaffirming decoding, then continues
Other frames of the video are decoded, and when receiving the error code of system return in decoding process, it is wrong to determine that formal decoding occurs
Accidentally.
If mistake occurs for the formal decoding, S204 is thened follow the steps.
Video encoding/decoding method provided in an embodiment of the present invention passes through the type information according to mobile terminal before video decoding
Whether it is preset video coding standard format with the match condition of the information in white list and the format of video to be decoded,
Select corresponding decoding process, can be that the video determine most suitable decoding process, improve the decoded flexibility of video and at
Power.In addition, by during according to selected decoding process decoding video, according to the mistake occurred in decoding process and
When switch other decoding processes, can be further reduced the decoded error rate of video, improve decoding efficiency.
3rd embodiment
Fig. 7 is the structural schematic diagram for the video decoder that third embodiment of the invention provides.It is provided in this embodiment to regard
Frequency decoding apparatus 30 can be run in mobile terminal 200 shown in FIG. 1, for realizing the video decoding side in above-described embodiment
Method.As shown in fig. 7, video decoder 30 includes：
Acquisition module 301, the type information for obtaining mobile terminal；
Judgment module 302, for judge acquisition module 301 obtain the mobile terminal type information whether with white list
In information match, record has the type information for supporting the decoded mobile terminal of hardware in the white list；
Decoder module 303 is decoded if the judging result for judgment module 302 is to mismatch by software decoder
Video；
Acquisition module 301, if the judging result for being additionally operable to judgment module 302 is to match, according to the mobile terminal
The version information of processor obtains corresponding video and decodes library；
Judgment module 302 is additionally operable to the video obtained according to acquisition module 301 decoding library and judges that the format of the video is
No is preset video coding standard format；
Decoder module 303 should by hardware decoder decoding if the judging result for being additionally operable to judgment module 302 is yes
Video, if it is not, then executing the step of being somebody's turn to do through software decoder decoding video.
The present embodiment refers to above-mentioned the detailed process of the respective function of each Implement of Function Module of video decoder 40
Particular content described in Fig. 1 to embodiment illustrated in fig. 6, details are not described herein again.
Video decoder provided in an embodiment of the present invention passes through the type information according to mobile terminal before video decoding
Whether it is preset video coding standard format with the match condition of the information in white list and the format of video to be decoded,
Select corresponding decoding process, can be that the video determine most suitable decoding process, improve the decoded flexibility of video and at
Power.
Fourth embodiment
Fig. 8 is the structural schematic diagram for the video decoder that fourth embodiment of the invention provides.It is provided in this embodiment to regard
Frequency decoding apparatus 40 can be run in mobile terminal 200 shown in FIG. 1, for realizing the video decoding side in above-described embodiment
Method.As shown in figure 8, unlike video decoder 30 shown in Fig. 7：
Further, decoder module 303 includes：
Judging unit 3031 decodes initialization operation for executing hardware by the hardware decoder, judges the hardware solution
Whether code initialization operation occurs mistake；
Decoding unit 3032, if mistake occurs for hardware decoding initialization operation, executing should be decoded by software
The step of device decoding video；
Judging unit 3031 is decoded if being additionally operable to hardware decoding initialization operation, mistake does not occur by the hardware
Device formally decodes the video, judges whether the formal decoding occurs mistake；
Decoding unit 3032, if being additionally operable to the formal decoding occurs mistake, executing should be regarded by software decoder decoding
The step of frequency.
Further, judging unit 3031 are additionally operable to through the hardware decoder to one group in the video specified video
Characteristic parameter is analyzed, to determine whether the hardware decoder supports the video features parameter, if not supporting, it is determined that this is hard
Part decodes initialization operation and mistake occurs, if supporting, judges that renderer supports the format of the color of display to be decoded with the hardware
Whether the video decompression format that device is supported matches, if mismatching, it is determined that the hardware decodes initialization operation and mistake occurs.
Further, judging unit 3031 are additionally operable to decode the first frame of the video by the hardware decoder, if before decoding
The information of the video features parameter is inconsistent afterwards, then reaffirms the video features parameter obtained after decoding, and when acknowledged
When mistake occurring in journey, determine that mistake occurs for the formal decoding, if being additionally operable to the information one of the front and back video features parameter of decoding
It causes, or mistake does not occur during confirming, then continue other frames for decoding the video, and when mistake occurs in decoding process,
Determine that mistake occurs for the formal decoding.
Further, judgment module 302 includes：
Transmission unit 3021, for the type information of the mobile terminal to be sent to server so that the server should
The type information of mobile terminal is matched with the information in the white list；
Information matches judging unit 3022, the matching result for being returned according to the server judge the type of the mobile terminal
Number information whether with the information match in white list.
Further, decoder module 303 are additionally operable to decode the video by the software decoder, if sending out in decoding process
Decoding error is given birth to, then switching system player decodes the video.
Further, video decoder 40 further includes：
Sending module 404, for the type information of the mobile terminal to be sent to the server so that the server according to
The type information of the mobile terminal updates the white list.
The present embodiment refers to above-mentioned the detailed process of the respective function of each Implement of Function Module of video decoder 40
Particular content described in Fig. 1 to embodiment illustrated in fig. 6, details are not described herein again.
Video decoder provided in an embodiment of the present invention passes through the type information according to mobile terminal before video decoding
Whether it is preset video coding standard format with the match condition of the information in white list and the format of video to be decoded,
Select corresponding decoding process, can be that the video determine most suitable decoding process, improve the decoded flexibility of video and at
Power.In addition, by during according to selected decoding process decoding video, according to the mistake occurred in decoding process and
When switch other decoding processes, can be further reduced the decoded error rate of video, improve decoding efficiency.
It should be noted that each embodiment in this specification is described in a progressive manner, each embodiment weight
Point explanation is all difference from other examples, and the same or similar parts between the embodiments can be referred to each other.
For device class embodiment, since it is basically similar to the method embodiment, so fairly simple, the related place ginseng of description
See the part explanation of embodiment of the method.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or device including a series of elements are not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or device
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or device including element.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can pass through hardware
Complete, relevant hardware can also be instructed to complete by program, program can be stored in a kind of computer-readable storage
In medium, storage medium mentioned above can be read-only memory, disk or CD etc..
More than, only it is presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, although this
Invention is disclosed above with preferred embodiment, and however, it is not intended to limit the invention, any person skilled in the art,
It does not depart within the scope of technical solution of the present invention, when the technology contents using the disclosure above make a little change or are modified to equivalent
The equivalent embodiment of variation, as long as being without departing from technical solution of the present invention content, according to the technical essence of the invention to above real
Any simple modification, equivalent change and modification made by example are applied, in the range of still falling within technical solution of the present invention.
Claims (13)
1. a kind of video encoding/decoding method, which is characterized in that the method includes：
The type information for obtaining mobile terminal, is sent to server so that the service by the type information of the mobile terminal
Device matches the type information of the mobile terminal with the information in white list；
According to the server return matching result judge the mobile terminal type information whether with the letter in white list
Manner of breathing matches, and record has the type information for supporting the decoded mobile terminal of hardware in the white list；
If mismatching, pass through software decoder decoding video；
If matching, according to the version information of the processor of mobile terminal acquisition corresponding video decoding library, and according to
Video decoding library judges whether the format of the video is preset video coding standard format；
If so, the video is decoded by hardware decoder, if it is not, passing through software decoder decoding video described in then executing
Step.
2. according to the method described in claim 1, it is characterized in that, described decode the video by hardware decoder and include：
Hardware is executed by the hardware decoder and decodes initialization operation, judges whether the hardware decoding initialization operation is sent out
Raw mistake；
If mistake occurs for hardware decoding initialization operation, execute it is described by software decoder decoding video the step of；
If mistake does not occur for the hardware decoding initialization operation, the video is formally decoded by the hardware decoder,
Judge whether the formal decoding occurs mistake；
If mistake occurs for the formal decoding, execute it is described by software decoder decoding video the step of.
3. according to the method described in claim 2, it is characterized in that, described execute hardware decoding just by the hardware decoder
Beginningization operates, and judges whether the hardware decoding initialization operation occurs mistake and include：
One group in the video specified video features parameter is analyzed by the hardware decoder, it is described hard with determination
Whether part decoder supports the video features parameter；
If not supporting, it is determined that mistake occurs for the hardware decoding initialization operation.
4. according to the method described in claim 3, it is characterized in that, the method further includes：
If supporting, the video decompression lattice that renderer supports the format of the color of display to be supported with the hardware decoder are judged
Whether formula matches；
If mismatching, it is determined that mistake occurs for the hardware decoding initialization operation.
5. according to the method described in claim 4, it is characterized in that, described by being regarded described in the hardware decoder formally decoding
Frequently, judge whether the formal decoding occurs mistake and include：
The first frame of the video is decoded by the hardware decoder, if the information of the front and back video features parameter of decoding differs
When causing, then reaffirm the video features parameter that obtains after decoding, and mistake occurs during confirming, determine it is described just
Mistake occurs for formula decoding；
If the information of the front and back video features parameter of decoding is consistent, or mistake does not occur during confirming, then continue to decode institute
Other frames of video are stated, and when mistake occurs in decoding process, determines that mistake occurs for the formal decoding.
6. according to any one of them method of claim 1 to 5, which is characterized in that described to decode institute by software decoder
Stating video includes：
The video is decoded by the software decoder；
If decoding error occurs in decoding process, switching system player decodes the video.
7. according to the method described in claim 6, it is characterized in that, it is described by the software decoder decode the video it
After include：
The type information of the mobile terminal is sent to the server so that the server is according to the mobile terminal
Type information updates the white list.
8. a kind of video decoder, which is characterized in that described device includes：
Acquisition module, the type information for obtaining mobile terminal；
Judgment module, for judge the mobile terminal that the acquisition module obtains type information whether in white list
Information match, record has the type information for supporting the decoded mobile terminal of hardware in the white list；
Decoder module passes through software decoder decoding video if the judging result for the judgment module is to mismatch；
The acquisition module, if the judging result for being additionally operable to the judgment module is to match, according to the mobile terminal
The version information of processor obtains corresponding video and decodes library；
The judgment module is additionally operable to the format that the video obtained according to the acquisition module decoding library judges the video
Whether it is preset video coding standard format；
The decoder module, if the judging result for being additionally operable to the judgment module is yes, decoded by hardware decoder described in
Video, if it is not, the step of then described in execution by software decoder decoding video；
Wherein, the judgment module includes：
Transmission unit, for the type information of the mobile terminal to be sent to server so that the server is by the shifting
The type information of dynamic terminal is matched with the information in the white list；
Information matches judging unit, the matching result for being returned according to the server judge the model letter of the mobile terminal
Breath whether with the information match in white list.
9. device according to claim 8, which is characterized in that the decoder module includes：
Judging unit decodes initialization operation for executing hardware by the hardware decoder, judges the hardware decoding just
Whether beginningization operation occurs mistake；
Decoding unit passes through software decoder solution if mistake occurs for hardware decoding initialization operation described in execution
The step of code video；
The judging unit is decoded if being additionally operable to the hardware decoding initialization operation, mistake does not occur by the hardware
Device formally decodes the video, judges whether the formal decoding occurs mistake；
The decoding unit executes described decoded by software decoder and regards if being additionally operable to the formal decoding occurs mistake
The step of frequency.
10. device according to claim 9, which is characterized in that
The judging unit, be additionally operable to by the hardware decoder video features parameter specified to one group in the video into
Whether row analysis, support the video features parameter, if not supporting, it is determined that the hardware solution with the determination hardware decoder
Mistake occurs for code initialization operation, if supporting, judges that renderer supports the format of the color of display and the hardware decoder
Whether the video decompression format of support matches, if mismatching, it is determined that mistake occurs for the hardware decoding initialization operation.
11. device according to claim 10, which is characterized in that
The judging unit is additionally operable to decode the first frame of the video by the hardware decoder, if being regarded described in decoding is front and back
The information of frequency characteristic parameter is inconsistent, then reaffirms the video features parameter obtained after decoding, and during confirming
When mistake occurs, determine that mistake occurs for the formal decoding, if being additionally operable to the information one of the front and back video features parameter of decoding
It causes, or mistake does not occur during confirming, then continue other frames for decoding the video, and work as in decoding process and mistake occurs
When, determine that mistake occurs for the formal decoding.
12. according to any one of them device of claim 8 to 11, which is characterized in that the decoder module is additionally operable to pass through
The software decoder decodes the video, if decoding error occurs in decoding process, described in the decoding of switching system player
Video.
13. device according to claim 12, which is characterized in that described device further includes：
Sending module, for the type information of the mobile terminal to be sent to the server so that the server according to
The type information of the mobile terminal updates the white list.
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