CN102957902B - The adaptation method and device of audio frequency and video transcoding parameter - Google Patents
The adaptation method and device of audio frequency and video transcoding parameter Download PDFInfo
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Abstract
Present invention is disclosed a kind of adaptation method of audio frequency and video transcoding parameter and device.The method may include step：Judge the transcoding parameter for whether having required for handheld device in repository；When there is the transcoding parameter, the acquisition transcoding parameter is supplied to handheld device carries out audio frequency and video conversion.The present invention obtains transcoding parameter in several ways, can find out more suitably transcoding parameter for handheld device；Simultaneously, it is allowed to the self-defined transcoding parameter of handheld device, and other handheld devices can be shared with use and receive other handheld device evaluations feedback, it is possible to resolve handheld device model covers infull problem, great convenience is brought to the user of handheld device.
Description
Technical field
The present invention relates to the configuring technical of audio frequency and video transcoding parameter, is related specifically to a kind of the suitable of audio frequency and video transcoding parameter
Method of completing the square and device.
Background technology
As the development of science and technology, handheld device are increasingly used widely, people's daily life is just like become
Necessary.The species of handheld device of the prior art is various, such as mobile phone, smart mobile phone（Such as iPhone）And panel computer
（Such as iPad）Also there is numerous different manufacturers and model Deng, various types of handheld devices.Simultaneously because hand-held set
Standby disposal ability is increasingly stronger and the requirement more and more higher of user, some handheld devices alternative customary personal computer
（PC）Realize corresponding function.Such as：The a lot of powerful high-end smartphones of disposal ability and panel computer etc., are to meet user couple
Using the higher and higher demand of handheld device playing audio-video, the process for being generally directed to graph image has been made single optimization, has been made
Obtain multimedia recreation function gradually perfect.
But as handheld device has strict requirements, such as iPhone and iPad only to support the audio frequency and video form that plays
H264 coded formats.In order to carry out the broadcasting of audio frequency and video in handheld device, user generally needs first on PC to turn audio frequency and video
Be changed to handheld device support form, then by conversion after audio frequency and video be transferred in handheld device, can play out, to user
Use extremely inconvenient.
If directly carrying out audio frequency and video form conversion on a handheld device, need according to difference（Type, producer and type
Number wait different）Handheld device different transcoding parameters are set.Turning for some common devices is only provided in existing transcoding software
Code parameter is arranged by default, if the default setting is not matched that with the handheld device used by user, is likely to result in and is turned
Audio and video playing effect after code is undesirable, cannot even play.There are the problems referred to above in handheld device, need professional person to lead to
Cross particular arrangement to solve, very big inconvenience is brought to domestic consumer, be unfavorable for supporting that audio frequency and video form turns on a handheld device
Change the development of technology.
Content of the invention
The main object of the present invention is to provide a kind of adaptation method of audio frequency and video transcoding parameter, improves the suitable of transcoding parameter
Match somebody with somebody efficiency.
The present invention proposes a kind of adaptation method of audio frequency and video transcoding parameter, including step：
Judge the transcoding parameter for whether having required for handheld device in repository；
When there is the transcoding parameter, the acquisition transcoding parameter is supplied to handheld device carries out audio frequency and video conversion.
Preferably, the acquisition transcoding parameter is supplied to after handheld device is carried out the step of audio frequency and video are changed and also wraps
Include：
The evaluation information evaluated by handheld device is received according to the effect that audio frequency and video are changed, according to the evaluation information more
The new repository.
Preferably, described judge the step of whether having the transcoding parameter required for handheld device in repository after also include：
When there is no the transcoding parameter, the self-defining transcoding parameter of handheld device is received, and updates the repository.
Preferably, described judge that the step of whether having the transcoding parameter corresponding to handheld device in repository specifically includes：
Judge whether handheld device has the transcoding parameter that option and installment storehouse acquiescence is provided；When there is selection, then extract acquiescence
The transcoding parameter of offer is to handheld device；And/or,
Keyword according to handheld device input judges whether there is the transcoding ginseng being associated with the keyword in repository
Number；When having associated, then associated transcoding parameter is extracted to handheld device.
Preferably, the step of transcoding parameter that the extraction is associated is to handheld device is specifically included：
Associated transcoding parameter is searched in repository；
After being ranked up to the transcoding parameter according to weighted value, handheld device is showed to select；The weighted value according to
The evaluation information is arranged.
Preferably, described carry out audio frequency and video conversion specifically include：
Audio stream in audio-video source file is separated with video flowing and is decoded；
Respectively decoded audio stream and video flowing are encoded according to the transcoding parameter；
Audio stream after by coding synthesizes new media file with video flowing.
The present invention also provides a kind of adaptive device of audio frequency and video transcoding parameter, including：
Parameter judge module, for judging the transcoding parameter for whether having required for handheld device in repository；
Parameter provides module, for when there is the transcoding parameter, the acquisition transcoding parameter is supplied to handheld device and enters
Row audio frequency and video are changed.
Preferably, described device also includes：
Receiver module is evaluated, for receiving the evaluation information evaluated by handheld device according to the effect that audio frequency and video are changed,
The repository is updated according to the evaluation information.
Preferably, described device also includes：
Self-defined receiver module, for when there is no the transcoding parameter, receiving the self-defining transcoding parameter of handheld device,
And update the repository.
Preferably, the parameter judge module is used for：
Judge whether handheld device has the transcoding parameter that option and installment storehouse acquiescence is provided；When there is selection, then pass through parameter
Module is provided and is extracted the transcoding parameter for providing is given tacit consent to handheld device；And/or,
Keyword according to handheld device input judges whether there is the transcoding ginseng being associated with the keyword in repository
Number；When having associated, then module is provided by parameter and extract associated transcoding parameter to handheld device.
Preferably, the parameter provides module and includes：
Searching unit, for searching associated transcoding parameter in repository；
Sequencing unit, after being ranked up to the transcoding parameter according to weighted value, shows handheld device to select；Institute
State weighted value to be arranged according to the evaluation information.
Preferably, described device also includes：
Decoder module is separated, for being separated the audio stream in audio-video source file with video flowing and being decoded；
Coding module, for encoding to decoded audio stream and video flowing according to the transcoding parameter respectively；
Media synthesis module, synthesizes new media file for the audio stream after by coding with video flowing.
The present invention is fed back to the evaluation of audio frequency and video conversion effect by handheld device, can be found out more suitably for handheld device
Transcoding parameter；Simultaneously, it is allowed to the self-defined transcoding parameter of handheld device, and other handheld devices can be shared with use and receive other
Handheld device evaluation is fed back, it is possible to resolve handheld device model covers infull problem, brings greatly just to the user of handheld device
Profit.
Description of the drawings
The step of Fig. 1 is the adaptation method of the audio frequency and video transcoding parameter of one embodiment of the invention schematic flow sheet；
Fig. 2 is another steps flow chart schematic diagram of the adaptation method of the audio frequency and video transcoding parameter of one embodiment of the invention；
The step of Fig. 3 is the adaptation method of the audio frequency and video transcoding parameter of another embodiment of the present invention schematic flow sheet；
Fig. 4 is another steps flow chart schematic diagram of the adaptation method of the audio frequency and video transcoding parameter of another embodiment of the present invention；
Fig. 5 is the schematic flow sheet of adaptation method step S103 of the audio frequency and video transcoding parameter of another embodiment of the present invention；
Fig. 6 is the structural representation of the adaptive device of the audio frequency and video transcoding parameter of one embodiment of the invention；
Fig. 7 is another structural representation of the adaptive device of the audio frequency and video transcoding parameter of one embodiment of the invention；
Fig. 8 is the structural representation of the adaptive device of the audio frequency and video transcoding parameter of another embodiment of the present invention；
Fig. 9 is the structural representation that the adaptive device parameter of the audio frequency and video transcoding parameter of another embodiment of the present invention provides module
Figure；
Figure 10 is another structural representation of the adaptive device of the audio frequency and video transcoding parameter of another embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
It should be appreciated that specific embodiment described herein is not intended to limit the present invention only in order to explain the present invention.
The present invention provides the adaptation method and device of the audio frequency and video transcoding parameter based on feedback is evaluated, by handheld device pair
The evaluation feedback of audio frequency and video conversion effect, can find out more suitably transcoding parameter for handheld device；Simultaneously, it is allowed to which handheld device is certainly
Transcoding parameter is defined, and other handheld devices can be shared with and used and receive other handheld device evaluation feedbacks, it is possible to resolve be hand-held
Unit type covers infull problem, brings great convenience to the user of handheld device.
With reference to Fig. 1, an a kind of embodiment of the adaptation method of audio frequency and video transcoding parameter of the invention is proposed.The method can be wrapped
Include：
Step S10, judge the transcoding parameter that whether has required for handheld device in repository；
Step S11, when there is above-mentioned transcoding parameter, obtain the transcoding parameter be supplied to handheld device carry out audio frequency and video turn
Change.
In the audio frequency and video conversion of handheld device, the repository of transcoding parameter need to be generally set, preserve default transcoding parameter
It is supplied to handheld device use.The transcoding parameter can be the transcoding parameter corresponding to the more commonly used handheld device.This is hand-held
Transcoding parameter corresponding to equipment can audio frequency and video conversion be had in this kind of handheld device（Currently）Best effects turn
Code parameter.Above-mentioned handheld device may include mobile phone, smart mobile phone（Such as iPhone）And panel computer（Such as iPad）Deng.
The corresponding relation of transcoding parameter and the transcoding parameter and handheld device can be preserved in above-mentioned repository.Can pass through
Judge whether handheld device has the transcoding parameter for selecting acquiescence to provide, or select, by searching for the transcoding parameter for obtaining, to judge
The transcoding parameter whether having in the repository required for handheld device.If it has, then being provided according to the selection of handheld device corresponding
Transcoding parameter carry out audio frequency and video transcoding to handheld device.
With reference to Fig. 2, also include after above-mentioned steps S11：
The evaluation information evaluated according to the effect that audio frequency and video are changed by step S12, reception handheld device, according to the evaluation
The above-mentioned repository of information updating.
The handheld device can also carry out feedback score generation according to the effect of audio and video playing after conversion to the transcoding parameter
Evaluation information.The repository can re-evaluate the weighted value of transcoding parameter according to the evaluation information, update the power of the transcoding parameter
Weight.The such as evaluation information can be to score, and scoring is higher to represent that conversion effect is better, will can score with reference to past when secondary in estimation
Secondary scoring simultaneously calculates weighted value according to default estimation mode, matches somebody with somebody when the weighted value of transcoding parameter produces change and then needs to update this
Put storehouse.Handheld device can be caused to obtain the more preferable transcoding parameter of effect by the renewal of the repository.
With reference to Fig. 3, also include after above-mentioned steps S10 in another embodiment：
Step S13, the self-defining transcoding parameter of reception handheld device, and update above-mentioned repository.
In above-mentioned judgement, if it is decided that in above-mentioned repository without handheld device need transcoding parameter when, then can connect
The self-defining transcoding parameter of handheld device is received, and makes handheld device audio frequency and video conversion can be carried out according to self-defining transcoding parameter, and
The self-defining transcoding parameter can be preserved and with the corresponding relation of the handheld device to repository, the transcoding improved in repository
Parameter, is conveniently supplied to other handheld devices and uses.
Meanwhile, the self-defining transcoding parameter can receive feedback score of other handheld devices using after and label
Deng.This labels and can enrich the evaluation to transcoding parameter, and the such as transcoding parameter can then stamp " having " for repeating to provide
Label, the label can be by system offers or User Defined etc. at random.
With reference to Fig. 4, above-mentioned steps S10 are specifically included：
Step S100, judge handheld device whether have option and installment storehouse acquiescence provide transcoding parameter；When there is selection, then
Carry out step S101；Otherwise, step S102 is carried out；
The transcoding parameter that step S101, extraction acquiescence are provided is to handheld device；
Step S102, judge whether to have in repository according to the keyword of handheld device input and be associated with the keyword
Transcoding parameter；When having associated, then carry out step S103；Otherwise, step S13 is carried out；
The associated transcoding parameter of step S103, extraction is to handheld device.
A kind of a kind of corresponding handheld device model of transcoding parameter can be set in above-mentioned repository, and be given tacit consent to pre- in the repository
If transcoding parameter be the transcoding parameter that matches with handheld device.Handheld device, can when needing to carry out audio frequency and video conversion
One or more mode in by selecting from acquiescence offer, from search selecting and be self-defined combines required for acquisition
Transcoding parameter.The acquisition modes of above-mentioned transcoding parameter are each independent, have no and fix using order, are from easily angle herein
Layout is using order.
In the present embodiment, the transcoding parameter that above-mentioned acquiescence is provided can be supplied to when needing to carry out audio frequency and video conversion hand-held
Equipment is selected.Handheld device can be selected and itself phase according to the handheld device model and corresponding transcoding parameter for showing
The transcoding parameter of coupling.Can by judging whether handheld device is selected, and confirm in the transcoding parameter of acquiescence offer be
The no transcoding parameter having required for handheld device.If there are selection, then selected transcoding parameter is extracted to handheld device；No
Then, it is possible to provide handheld device carries out keyword search, handheld device is made to continually look for suitable transcoding parameter.
During the keyword search, can be according to the keyword of the handheld device input（Such as trade name or model
Deng）Judge in repository, whether there is the transcoding parameter being associated with the keyword.If any can then show handheld device to be selected
Select.If selected and searched for acquisition both of which not finding corresponding transcoding from repository from acquiescence by above-mentioned
Parameter, then can also obtain transcoding parameter by self-defining mode.
With reference to Fig. 5, above-mentioned steps S103 are specifically included：
Step S1030, associated transcoding parameter is searched in repository；
Step S1031, above-mentioned transcoding parameter is ranked up according to weighted value after, show handheld device select；The power
Weight values are arranged according to above-mentioned evaluation information.
The transcoding parameter being associated with the keyword can be searched in repository according to the keyword of handheld device input.
Such as the keyword is handheld device model, then can search and the direct corresponding transcoding parameter of the model, or search and the type
Transcoding parameter number corresponding to similar model.After lookup, the transcoding parameter that is searched is ranked up according to weighted value, is shown
Select to handheld device.Such as it can be arranged in order by weighted value from high to low, weighted value is high to represent that conversion effect is good.As described above,
The weighted value can be obtained according to evaluation information.The displaying may include the label that displaying transcoding parameter is labeled with, and facilitate handheld device
Make accurately selection.
Above-mentioned handheld device carries out audio frequency and video conversion and specifically includes：Audio stream in audio-video source file and video flowing are entered
Row is separated and is decoded；Respectively decoded audio stream and video flowing are encoded according to above-mentioned transcoding parameter；And, will coding
Audio stream afterwards synthesizes new media file with video flowing.
The transformation process of above-mentioned audio frequency and video can be：Audio-video document first to needing conversion is parsed, and by sound
Frequency stream, the separation of video flowing；Then respectively audio stream, video flowing are decoded, further according to transcoding parameter respectively to decoding after
Audio stream, video flowing encoded, finally by coding after audio stream, video flowing synthesize new media file, complete sound and regard
The conversion of frequency.
The adaptation method of above-mentioned audio frequency and video transcoding parameter, is fed back to the evaluation of audio frequency and video conversion effect by handheld device,
Can in repository with the handheld device corresponding weight of corresponding transcoding parameter imparting, conversion effect is distinguished by the height of weight
Quality（The high then conversion effect of such as weight is good）, so more suitably transcoding parameter can be found out for handheld device；Simultaneously, it is allowed to
The self-defined transcoding parameter of handheld device, can be shared with other handheld devices and use and receive other handheld device evaluation feedbacks, lead to
Cross this kind of mode can constantly improve and revise repository in the corresponding transcoding parameter of handheld device, it is possible to resolve handheld device model is covered
The problem of Gai Buquan, brings great convenience to the user of handheld device.
With reference to Fig. 6, an a kind of embodiment of the adaptive device 20 of audio frequency and video transcoding parameter of the invention is proposed.The device 20 can
Including：Parameter judge module 21 and parameter provide module 22；The parameter judge module 21, for judging whether have in repository
Transcoding parameter required for handheld device；The parameter provides module 22, for when there is above-mentioned transcoding parameter, obtaining the transcoding ginseng
Number is supplied to handheld device carries out audio frequency and video conversion.
In the audio frequency and video conversion of handheld device, the repository of transcoding parameter need to be generally set, preserve default transcoding parameter
It is supplied to handheld device use.The transcoding parameter can be the transcoding parameter corresponding to the more commonly used handheld device.This is hand-held
Transcoding parameter corresponding to equipment can audio frequency and video conversion be had in this kind of handheld device（Currently）Best effects turn
Code parameter.Above-mentioned handheld device may include mobile phone, smart mobile phone（Such as iPhone）And panel computer（Such as iPad）Deng.
The corresponding relation of transcoding parameter and the transcoding parameter and handheld device can be preserved in above-mentioned repository.Can pass through
Above-mentioned parameter judge module 21 judges whether handheld device has the transcoding parameter for selecting acquiescence to provide, or determines whether to select
By searching for the transcoding parameter for obtaining, the transcoding parameter for whether having required for handheld device in the repository is judged with this.If
Have, then providing module 22 by above-mentioned parameter is carried out to handheld device according to the corresponding transcoding parameter of the selection of handheld device offer
Audio frequency and video transcoding.
With reference to Fig. 7, said apparatus 20 may also include：The evaluation receiver module 23, regards according to sound for receiving handheld device
The evaluation information evaluated by the effect of frequency conversion, updates above-mentioned repository according to the evaluation information.
The handheld device can also carry out feedback score generation according to the effect of audio and video playing after conversion to the transcoding parameter
Evaluation information.Above-mentioned evaluation receiver module 23 can receive the evaluation information, and re-evaluate transcoding parameter according to the evaluation information
Weighted value, update repository in the transcoding parameter weight.Such as the evaluation information can be scoring, and higher expression of scoring is changed
Effect is better, with reference to previous scoring and can calculate weighted value according to default estimation mode when time scoring in estimation, when turning
The weighted value of code parameter produces change then to be needed to update the repository.Handheld device can be caused to obtain by the renewal of the repository
Take the more preferable transcoding parameter of effect.
With reference to Fig. 8, in another embodiment, said apparatus 20 also include：Self-defined receiver module 24, for ought be not above-mentioned
During transcoding parameter, the self-defining transcoding parameter of handheld device is received, and updates above-mentioned repository.
In the judgement of above-mentioned parameter judge module 21, if it is decided that without turning that handheld device needs in above-mentioned repository
During code parameter, then the self-defining transcoding parameter of handheld device can be received by above-mentioned self-defined receiver module 24, make handheld device
Audio frequency and video conversion can be carried out according to self-defining transcoding parameter, and the self-defining transcoding parameter can be preserved and hand-held set with this
Standby corresponding relation is conveniently supplied to other handheld devices and uses to repository, the transcoding parameter improved in repository.
Meanwhile, the self-defining transcoding parameter can receive feedback score of other handheld devices using after and label
Deng.This labels and can enrich the evaluation to transcoding parameter, and the such as transcoding parameter can then stamp " having " for repeating to provide
Label, the label can be by User Defineds of the random offer of system or handheld device etc..
Above-mentioned parameter judge module 21 specifically for：Judge whether handheld device has the transcoding that option and installment storehouse acquiescence is provided
Parameter；When there is selection, then module 22 is provided and is extracted by parameter and the transcoding parameter for providing is given tacit consent to handheld device；And/or, root
The keyword being input into according to handheld device judges whether there is the transcoding parameter being associated with the keyword in repository；Associated when having
When, then module 22 is provided by parameter extract associated transcoding parameter to handheld device.
A kind of a kind of corresponding handheld device model of transcoding parameter can be set in above-mentioned repository, and be given tacit consent to pre- in the repository
If transcoding parameter be the transcoding parameter that matches with handheld device.Handheld device, can when needing to carry out audio frequency and video conversion
One or more mode in by selecting from acquiescence offer, from search selecting and be self-defined combines required for acquisition
Transcoding parameter.The acquisition modes of above-mentioned transcoding parameter are each independent, have no and fix using order, are from easily angle herein
Layout is using order.
In the present embodiment, the transcoding parameter that above-mentioned acquiescence is provided can be supplied to when needing to carry out audio frequency and video conversion hand-held
Equipment is selected.Handheld device can be selected and itself phase according to the handheld device model and corresponding transcoding parameter for showing
The transcoding parameter of coupling.Can judge whether handheld device is selected by parameter judge module 21, and confirm that the acquiescence is provided
Transcoding parameter in whether have transcoding parameter required for handheld device.If there are selection, then module 22 is provided by parameter and carried
Selected transcoding parameter is taken to handheld device；Otherwise, it is possible to provide handheld device carries out keyword search, make the handheld device can be after
Continue and find suitable transcoding parameter.
During the keyword search, keyword of the parameter judge module 21 according to the handheld device input can be passed through
（Such as trade name or model etc.）Judge in repository, whether there is the transcoding parameter being associated with the keyword.If any then may be used
Handheld device is showed to be selected, above-mentioned parameter provides module 22 can be according to the corresponding transcoding ginseng of the selective extraction of handheld device
Number carries out audio frequency and video conversion to handheld device.If by above-mentioned from acquiescence select and search for obtain both of which not from
Corresponding transcoding parameter is found in repository, then also transcoding parameter can be obtained by self-defining mode.
With reference to Fig. 9, above-mentioned parameter provides module 22 and specifically may include：Searching unit 221 and sequencing unit 222；This is looked into
Unit 221 is looked for, for associated transcoding parameter is searched in repository；The sequencing unit 222, for according to weighted value to
State after transcoding parameter is ranked up, show handheld device to select；The weighted value is arranged according to above-mentioned evaluation information.
The keyword that above-mentioned searching unit 221 is input into according to handheld device, searches in repository related to the keyword
The transcoding parameter of connection.Such as the keyword is handheld device model, then can search and the direct corresponding transcoding parameter of the model, or
Person searches the transcoding parameter corresponding to the model similar with the model.Above-mentioned sequencing unit 222 can be after lookup, according to weighted value
The transcoding parameter that is searched is ranked up, shows handheld device to select.Such as it can be arranged in order by weighted value from high to low,
Weighted value is high to represent that conversion effect is good.As described above, the weighted value can be obtained according to evaluation information.The displaying may include to show transcoding
The label that parameter is labeled with, facilitates handheld device to make accurately selection.
With reference to Figure 10, said apparatus 20 may also include：Separate decoder module 25, coding module 26 and media synthesis module
27；The separation decoder module 25, for being separated the audio stream in audio-video source file with video flowing and being decoded；The coding
Module 26, for encoding to decoded audio stream and video flowing according to above-mentioned transcoding parameter respectively；The media synthesis mould
Block 27, synthesizes new media file for the audio stream after by coding with video flowing.
The transformation process of above-mentioned audio frequency and video can be：25 pairs of audio frequency and video for needing conversion of decoder module are separated first by above-mentioned
File is parsed, and by audio stream, the separation of video flowing；Then respectively audio stream, video flowing are decoded, then are passed through
Coding module 26 is encoded to decoded audio stream, video flowing respectively according to transcoding parameter, synthesizes mould finally by media
Block 27 by coding after audio stream, video flowing synthesize new media file, complete the conversion of audio frequency and video.
The adaptive device 20 of above-mentioned audio frequency and video transcoding parameter, anti-to the evaluation of audio frequency and video conversion effect by handheld device
Feedback, can in repository with the handheld device corresponding weight of corresponding transcoding parameter impartings, distinguished by the height of weight and changed
The quality of effect（The high then conversion effect of such as weight is good）, so more suitably transcoding parameter can be found out for handheld device；Meanwhile,
The self-defined transcoding parameter of handheld device is allowed, other handheld devices can be shared with and used and received other handheld devices evaluations instead
Feedback, by this kind of mode can constantly improve and revise repository in the corresponding transcoding parameter of handheld device, it is possible to resolve handheld device
Model covers infull problem, brings great convenience to the user of handheld device.
The preferred embodiments of the present invention are the foregoing is only, the scope of the claims of the present invention, every utilization is not thereby limited
Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or it is related to be directly or indirectly used in other
Technical field, be included within the scope of the present invention.
Claims (8)
1. a kind of adaptation method of audio/video in handheld device video code conversion parameter, it is characterised in that including step：
Judge the transcoding parameter for whether having required for handheld device in repository；
When there is the transcoding parameter, the acquisition transcoding parameter is supplied to the handheld device carries out audio frequency and video conversion；
Wherein, the acquisition transcoding parameter is supplied to after handheld device is carried out the step of audio frequency and video are changed and also includes：Receive
The evaluation information evaluated according to the effect that the audio frequency and video are changed by the handheld device, updates institute according to the evaluation information
Repository is stated, wherein, described the repository is updated according to the evaluation information included：Re-evaluated according to the evaluation information
Weighted value of the transcoding parameter in the repository, updates the weighted value of the transcoding parameter, according to the weighted value to institute
State transcoding parameter to be ranked up；
Wherein, described judge the step of whether having the transcoding parameter required for handheld device in repository after also include：When not having
During the transcoding parameter, the self-defining transcoding parameter of handheld device is received, and updates the repository；Wherein, hand-held in reception
During the self-defining transcoding parameter of equipment, also include：Share the transcoding parameter use to other handheld devices and receive described its
He feeds back in handheld device evaluation, to revise the transcoding parameter in the repository.
2. the adaptation method of audio/video in handheld device video code conversion parameter according to claim 1, it is characterised in that described sentence
The step of whether having the transcoding parameter corresponding to handheld device in disconnected repository specifically includes：
Judge whether handheld device has the transcoding parameter that option and installment storehouse acquiescence is provided；When there is selection, then extract acquiescence and provide
Transcoding parameter to handheld device；And/or,
Keyword according to handheld device input judges whether there is the transcoding parameter being associated with the keyword in repository；When
When having associated, then associated transcoding parameter is extracted to handheld device.
3. according to the adaptation method of the audio/video in handheld device video code conversion parameter described in claim 2, it is characterised in that described
The step of associated transcoding parameter is extracted to handheld device specifically includes：
Associated transcoding parameter is searched in repository；
After being ranked up to the transcoding parameter according to weighted value, handheld device is showed to select；The weighted value is according to described
Evaluation information is arranged.
4. the adaptation method of audio/video in handheld device video code conversion parameter according to any one of claim 1 to 3, its feature
Be, described carry out audio frequency and video conversion specifically include：
Audio stream in audio-video source file is separated with video flowing and is decoded；
Respectively decoded audio stream and video flowing are encoded according to the transcoding parameter；
Audio stream after by coding synthesizes new media file with video flowing.
5. a kind of adaptive device of audio/video in handheld device video code conversion parameter, it is characterised in that include：
Parameter judge module, for judging the transcoding parameter for whether having required for handheld device in repository；
Parameter provides module, for when there is the transcoding parameter, the acquisition transcoding parameter is supplied to handheld device carries out sound
Video conversion；
Wherein, described device also includes：Receiver module is evaluated, for receiving what the handheld device was changed according to the audio frequency and video
The evaluation information evaluated by effect, updates the repository according to the evaluation information, and wherein, the evaluation receiver module leads to
Cross following steps to realize updating the repository according to the evaluation information：The transcoding is re-evaluated according to the evaluation information
Weighted value of the parameter in the repository, updates the weighted value of the transcoding parameter, the transcoding is joined according to the weighted value
Number is ranked up；
Wherein, described device also includes：Self-defined receiver module, for when not having the transcoding parameter, receiving handheld device
Self-defining transcoding parameter, and update the repository；Wherein, the handheld device is received certainly in the self-defined receiver module
During the transcoding parameter of definition, share the transcoding parameter and use to other handheld devices and receive other handheld device evaluations described
Feedback, to revise the transcoding parameter in the repository.
6. the adaptive device of audio/video in handheld device video code conversion parameter according to claim 5, it is characterised in that the ginseng
Number judge modules specifically for：
Judge whether handheld device has the transcoding parameter that option and installment storehouse acquiescence is provided；When there is selection, then provided by parameter
Module extracts the transcoding parameter of acquiescence offer to handheld device；And/or,
Keyword according to handheld device input judges whether there is the transcoding parameter being associated with the keyword in repository；When
When having associated, then module is provided by parameter and extract associated transcoding parameter to handheld device.
7. according to the adaptive device of the audio/video in handheld device video code conversion parameter described in claim 5, it is characterised in that described
Parameter provides module and specifically includes：
Searching unit, for searching associated transcoding parameter in repository；
Sequencing unit, after being ranked up to the transcoding parameter according to weighted value, shows handheld device to select；The power
Weight values are arranged according to the evaluation information.
8. the adaptive device of the audio/video in handheld device video code conversion parameter according to any one of claim 5 to 7, its feature
It is, described device also includes：
Decoder module is separated, for being separated the audio stream in audio-video source file with video flowing and being decoded；
Coding module, for encoding to decoded audio stream and video flowing according to the transcoding parameter respectively；
Media synthesis module, synthesizes new media file for the audio stream after by coding with video flowing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110241630.4A CN102957902B (en) | 2011-08-22 | 2011-08-22 | The adaptation method and device of audio frequency and video transcoding parameter |
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| CN103702137A (en) * | 2013-12-23 | 2014-04-02 | 乐视网信息技术（北京）股份有限公司 | Method and system for generating statistic data during transcoding task processing |
| CN104754366A (en) * | 2015-03-03 | 2015-07-01 | 腾讯科技（深圳）有限公司 | Audio and video file live broadcasting method, device and system |
| CN105872745A (en) * | 2015-12-21 | 2016-08-17 | 乐视致新电子科技（天津）有限公司 | Extension method and device of input data sources |
| CN109474827B (en) * | 2018-12-03 | 2022-11-29 | 四川巧夺天工信息安全智能设备有限公司 | Method for rapidly transcoding monitoring video |
| CN114501026B (en) * | 2022-02-17 | 2023-04-14 | 北京百度网讯科技有限公司 | Video coding method, device, equipment and storage medium |
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