CN104768063A - Video coding method and device - Google Patents
Video coding method and device Download PDFInfo
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- CN104768063A CN104768063A CN201510161146.9A CN201510161146A CN104768063A CN 104768063 A CN104768063 A CN 104768063A CN 201510161146 A CN201510161146 A CN 201510161146A CN 104768063 A CN104768063 A CN 104768063A
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000001514 detection method Methods 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 claims description 11
- 230000006870 function Effects 0.000 description 44
- 238000010586 diagram Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 238000004590 computer program Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
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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 or rendering scenes according to encoded video stream scene graphs
- H04N21/44012—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving rendering scenes according to scene graphs, e.g. MPEG-4 scene graphs
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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 or rendering scenes according to encoded video stream scene graphs
- H04N21/4408—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
The invention discloses a video coding method and device. The method and device are used for properly selecting hard coding or soft coding used when a client side carries out video coding, and hard coding and soft coding are selected reasonably. The method comprises the steps that whether client side equipment supports a QSV hard coding function or not is detected; if the client side equipment supports the QSV hard coding function, a hard coder is created, and the hard coder is adopted for coding video data; if the client side equipment does not support the QSV hard coding function, a soft coder is created, and adopted for coding the video data; the aim of properly selecting hard coding or soft coding used when the client side carries out video coding is achieved, and hard coding and soft coding are selected reasonably.
Description
Technical field
The present invention relates to Internet technical field, particularly a kind of method for video coding and device.
Background technology
Through the develop rapidly of Internet technology in recent years, the business of the Internet constantly increases, and the various videos touched can be shared based on the Internet by people.Such as, same office, studio, classroom etc. are local exists a local area network (LAN) usually, and usually there are a lot of terminals in this local area network (LAN); How the terminal screen content in same local area network (LAN) and sound being projected same server in the mode of video, is current popular multi-screen technology of sharing.
When the video of correspondence shares to and sends out server by client, usually need after coding video data, then be sent to server.At present, the coded system that client is conventional mainly contains hard coded mode and soft coded system; Adopt hard coded mode greatly can reduce the utilization rate of client machine central processing unit (Center ProcessorUnit, CPU), adopt the CPU usage of the mode of soft coding then client machine can be very high.Therefore, the reasonability selection of hard coded and soft coding is one of problem common in Video coding.
Summary of the invention
The invention provides a kind of method for video coding and device, in order to appropriately to choose the hard coded or soft coding that use when client carries out Video coding, realize the Rational choice of hard coded and soft coding.
The invention provides a kind of video editing method, comprising:
Detect client device and whether support that high-speed image synchronously turns File Technology QSV hard coded function;
If client device supports QSV hard coded function, then create hard encoder, and adopt hard encoder to coding video data;
If client device does not support QSV hard coded function, then create soft encoder, and adopt soft encoder to coding video data.
In one embodiment, whether described detection client device supports QSV hard coded function, comprising:
Calling interface function, obtains the graphics processing unit GPU equipment of hard coded;
By checking whether described GPU equipment exists, judge whether described client device supports QSV hard coded function.
In one embodiment, described establishment hard encoder, and adopt hard encoder to coding video data, comprising:
Initialization GPU equipment, creates hard encoder;
Adopt the hard encoder created to coding video data.
In one embodiment, the soft encoder of described establishment, and adopt soft encoder to coding video data, comprising:
The coding parameter that configuration pre-arranged code form is corresponding, creates soft encoder;
Adopt the soft encoder created to coding video data.
In one embodiment, above-mentioned video editing method also comprises:
According to default frame format, the video data after output encoder.
Corresponding to above-mentioned audio frequency and video edit methods, the embodiment of the present invention additionally provides a kind of video coding apparatus, comprising:
For detecting client device, whether detection module, support that high-speed image synchronously turns File Technology QSV hard coded function;
Hard coded module, for when client device supports QSV hard coded function, creates hard encoder, and adopts hard encoder to coding video data;
Soft coding module, during for not supporting QSV hard coded function at client device, creates soft encoder, and adopts soft encoder to coding video data.
In one embodiment, described detection module comprises:
Acquiring unit, for calling interface function, obtains the graphics processing unit GPU equipment of hard coded;
Judging unit, for by checking whether described GPU equipment exists, judges whether described client device supports QSV hard coded function.
In one embodiment, described hard coded module comprises:
First creating unit, for initialization GPU equipment, creates hard encoder;
First coding unit, for adopting the hard encoder of establishment to coding video data.
In one embodiment, described soft coding module comprises:
Second creating unit, the coding parameter that configuration pre-arranged code form is corresponding, creates soft encoder;
Second coding unit, adopts the soft encoder created to coding video data.
In one embodiment, described video editing apparatus also comprises:
Output module, for according to default frame format, the video data after output encoder.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart of a kind of video editing method of the present invention according to an exemplary embodiment;
Fig. 2 is the flow chart of step S10 in a kind of video editing method of the present invention according to an exemplary embodiment;
Fig. 3 is the flow chart of step S20 in a kind of video editing method of the present invention according to an exemplary embodiment;
Fig. 4 is the flow chart of step S30 in a kind of video editing method of the present invention according to an exemplary embodiment;
The flow chart of the another kind of video editing method of Fig. 5 position the present invention according to an exemplary embodiment;
Fig. 6 is the block diagram of a kind of video editing apparatus of the present invention according to an exemplary embodiment;
Fig. 7 is the block diagram of detection module 60 in a kind of video editing apparatus of the present invention according to an exemplary embodiment;
Fig. 8 is the block diagram of hard coded module 70 in a kind of video editing apparatus of the present invention according to an exemplary embodiment;
Fig. 9 is the block diagram of soft coding module 80 in a kind of video editing apparatus of the present invention according to an exemplary embodiment;
Figure 10 is the block diagram of the another kind of video editing apparatus of the present invention according to an exemplary embodiment.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Disclosed by the invention one embodiments provides a kind of video editing method, in order to appropriately to choose the hard coded or soft coding that use when client carries out Video coding, realizes the Rational choice of hard coded and soft coding.As shown in Figure 1, in the embodiment of the present invention, a kind of video editing method comprises step S10-S30:
Whether step S10, detection client device support that high-speed image synchronously turns File Technology QSV hard coded function.
At present, client device roughly can be divided into two classes: a class supports that Intel's high-speed image synchronously turns the equipment of File Technology (Quick Sync Vedio, QSV) hard coded function, and another kind of is the equipment not supporting QSV hard coded function.Support that the client device of QSV hard coded function is when running client program, uses hard coded function, because hard coded function greatly can reduce the utilization rate of CPU.Therefore, when carrying out Video coding, first detecting this client device and whether supporting QSV hard coded function.
In one embodiment, as shown in Figure 2, step S10 can perform as step S101-S102:
Step S101, calling interface function, obtain the graphics processing unit GPU equipment of hard coded;
When whether detection client device possesses QSV hard coded function, call an interface function, obtain the GPU equipment of hard coded, according to acquisition result, judge whether GPU equipment exists.If the GPU equipment of hard coded can be got, then represent that this GPU equipment exists; If the GPU equipment of hard coded can not be got, then represent that this GPU equipment does not exist.
Step S102, by checking whether described GPU equipment exists, judge whether described client device supports QSV hard coded function.
If by checking, learn that this GPU equipment exists, then judge that this client device supports QSV hard coded function; If by checking, learn that this GPU equipment does not exist, then judge that this client device does not support QSV hard coded function.
If client device supports QSV hard coded function, then perform step S20, create hard encoder, and adopt hard encoder to coding video data.
When client device supports QSV hard coded function, create hard encoder, utilize the hard encoder created to coding video data.
In one embodiment, as shown in Figure 3, step S20 may be embodied as step S201-S202:
Step S201, initialization GPU equipment, create hard encoder;
The hard encoder that step S202, employing create is to coding video data.
If client device supports QSV hard coded function, then the GPU equipment of this client device of initialization, the coding parameter that configuration pre-arranged code form is corresponding, such as configures H264 coding parameter, creates hard encoder; Adopt the hard encoder created to coding video data.
If client device does not support QSV hard coded function, then perform step S30, create soft encoder, and adopt soft encoder to coding video data.
When client device does not support QSV hard coded function, then create soft encoder, utilize the hard soft encoder created to coding video data.
In one embodiment, as shown in Figure 4, step S30 may be embodied as step S301-S302:
Step S301, the coding parameter that configuration pre-arranged code form is corresponding, create soft encoder;
The soft encoder that step S302, employing create is to coding video data.
If client device does not support QSV hard coded function, then configure coding parameter corresponding to pre-arranged code form, such as configure H264 coding parameter, create soft encoder; Adopt the soft encoder created to coding video data.
Whether the above-mentioned video editing method that the embodiment of the present invention provides, support QSV hard coded function by detecting client device; If client device supports QSV hard coded function, then create hard encoder, and adopt hard encoder to coding video data; If client device does not support QSV hard coded function, then create soft encoder, and adopt soft encoder to coding video data; Reach the object appropriately choosing hard coded or the soft coding used when client carries out Video coding, achieve the Rational choice of hard coded and soft coding.
On the basis of the video editing method provided at above-described embodiment, after to the coding video data of client, be sent to server according to certain form.As shown in Figure 5, embodiment of the present invention video editing method also comprises:
Step S40, according to default frame format, the video data after output encoder.
No matter adopt hard encoder or software encoder to coding video data, after coding, according to the frame format preset, the video data after coding is sent to server.Such as, the video data format that client device adopts is YUV420P, then the Frame of client to above-mentioned YUV420P form is encoded, the data exporting H.264 form after coding to server, for server.
The said method that the embodiment of the present invention provides, directly exports the data of corresponding form to server, decreases the time that server re-starts Data Format Transform, improve data transmission efficiency after client device coding.
A kind of video editing method that the corresponding embodiment of the present invention provides, present invention also offers a kind of video editing apparatus; As shown in Figure 6, described a kind of video editing apparatus, comprising: detection module 60, hard coded module 70 and soft coding module 80.Wherein,
For detecting client device, whether detection module 60, support that high-speed image synchronously turns File Technology QSV hard coded function.
In one embodiment, as shown in Figure 7, described detection module 60 comprises:
Acquiring unit 601, for calling interface function, obtains the graphics processing unit GPU equipment of hard coded;
Judging unit 602, for by checking whether described GPU equipment exists, judges whether described client device supports QSV hard coded function.
Hard coded module 70, for when client device supports QSV hard coded function, creates hard encoder, and adopts hard encoder to coding video data.
In one embodiment, as shown in Figure 8, described hard coded module 70 comprises:
First creating unit 701, for initialization GPU equipment, creates hard encoder;
First coding unit 702, for adopting the hard encoder of establishment to coding video data.
Soft coding module 80, during for not supporting QSV hard coded function at client device, creates soft encoder, and adopts soft encoder to coding video data.
In one embodiment, as shown in Figure 9, described soft coding module 80 comprises:
Second creating unit 801, the coding parameter that configuration pre-arranged code form is corresponding, creates soft encoder;
Second coding unit 802, adopts the soft encoder created to coding video data.
In one embodiment, as shown in Figure 10, embodiment of the present invention audio coding apparatus also comprises:
Output module 90, for according to default frame format, the video data after output encoder.
Whether the above-mentioned video editing apparatus that the embodiment of the present invention provides, support QSV hard coded function by detecting client device; If client device supports QSV hard coded function, then create hard encoder, and adopt hard encoder to coding video data; If client device does not support QSV hard coded function, then create soft encoder, and adopt soft encoder to coding video data; Reach the object appropriately choosing hard coded or the soft coding used when client carries out Video coding, achieve the Rational choice of hard coded and soft coding.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a video editing method, is characterized in that, comprising:
Detect client device and whether support that high-speed image synchronously turns File Technology QSV hard coded function;
If client device supports QSV hard coded function, then create hard encoder, and adopt hard encoder to coding video data;
If client device does not support QSV hard coded function, then create soft encoder, and adopt soft encoder to coding video data.
2. the method for claim 1, is characterized in that, whether described detection client device supports QSV hard coded function, comprising:
Calling interface function, obtains the graphics processing unit GPU equipment of hard coded;
By checking whether described GPU equipment exists, judge whether described client device supports QSV hard coded function.
3. the method for claim 1, is characterized in that, described establishment hard encoder, and adopts hard encoder to coding video data, comprising:
Initialization GPU equipment, creates hard encoder;
Adopt the hard encoder created to coding video data.
4. the method for claim 1, is characterized in that, the soft encoder of described establishment, and adopts soft encoder to coding video data, comprising:
The coding parameter that configuration pre-arranged code form is corresponding, creates soft encoder;
Adopt the soft encoder created to coding video data.
5. the method as described in any one of Claims 1-4, is characterized in that, described video editing method also comprises:
According to default frame format, the video data after output encoder.
6. a video coding apparatus, is characterized in that, comprising:
For detecting client device, whether detection module, support that high-speed image synchronously turns File Technology QSV hard coded function;
Hard coded module, for when client device supports QSV hard coded function, creates hard encoder, and adopts hard encoder to coding video data;
Soft coding module, during for not supporting QSV hard coded function at client device, creates soft encoder, and adopts soft encoder to coding video data.
7. method as claimed in claim 6, it is characterized in that, described detection module comprises:
Acquiring unit, for calling interface function, obtains the graphics processing unit GPU equipment of hard coded;
Judging unit, for by checking whether described GPU equipment exists, judges whether described client device supports QSV hard coded function.
8. method as claimed in claim 6, it is characterized in that, described hard coded module comprises:
First creating unit, for initialization GPU equipment, creates hard encoder;
First coding unit, for adopting the hard encoder of establishment to coding video data.
9. method as claimed in claim 6, it is characterized in that, described soft coding module comprises:
Second creating unit, the coding parameter that configuration pre-arranged code form is corresponding, creates soft encoder;
Second coding unit, adopts the soft encoder created to coding video data.
10. the device as described in any one of claim 6 to 9, is characterized in that, described video editing apparatus also comprises:
Output module, for according to default frame format, the video data after output encoder.
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| CN201510161146.9A CN104768063A (en) | 2015-04-07 | 2015-04-07 | Video coding method and device |
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