CN104796702B - A kind of conversion method and device of H264 video frame rates - Google Patents
A kind of conversion method and device of H264 video frame rates Download PDFInfo
- Publication number
- CN104796702B CN104796702B CN201510195594.0A CN201510195594A CN104796702B CN 104796702 B CN104796702 B CN 104796702B CN 201510195594 A CN201510195594 A CN 201510195594A CN 104796702 B CN104796702 B CN 104796702B
- Authority
- CN
- China
- Prior art keywords
- video frame
- frame
- raw
- markd
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Television Systems (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a kind of conversion method and device of H264 video frame rates, to realize that the frame per second of the video frame of H264 standards is changed.The described method includes：Obtain the H264 video frame in unit time；H264 video frame in the unit time is decoded, obtains decoded RAW video frame；Conversion operation at equal intervals is carried out to the current frame rate of the RAW video frame.The technical solution carries out frame per second conversion by being decoded respectively to the H264 video frame in unit time, and then to decoded RAW video frame, the frame per second conversion of the video frame of H264 standards is realized, so as to meet requirement of the video to different frame per second.
Description
Technical field
The present invention relates to Internet technical field, the more particularly to a kind of conversion method and device of H264 video frame rates.
Background technology
By the development of multi-media processing technology in recent years, frame per second conversion is not only used between video format and standard
Changed, be also used for strengthening the total quality of video, the frame per second of higher is by as providing higher quality home videos
Important composition, however, some in existing video can't use at the higher frame rate, therefore, frame per second conversion becomes very
It is necessary.For the video of a variety of different coding standards, how frame per second conversion is targetedly carried out, become current multimedia
The highly important research topic in field.
The content of the invention
The present invention provides a kind of conversion method and device of H264 video frame rates, to realize the video frame of H264 standards
Frame per second is changed.
The present invention provides a kind of conversion method of H264 video frame rates, including：
Obtain the H264 video frame in unit time；
H264 video frame in the unit time is decoded, obtains decoded RAW video frame；
Conversion operation at equal intervals is carried out to the current frame rate of the RAW video frame.
In one embodiment, the conversion operation includes increasing frame operation or subtracts frame operation.
In one embodiment, when the conversion operation includes subtracting frame operation, the H264 in the unit time
Before video frame is decoded, the method further includes：
According to the classification of the H264 video frame, the I frames in the H264 video frame are marked, are obtained with mark
Video frame；
The current frame rate to the RAW video frame carries out conversion operation at equal intervals, including：
Determine that the RAW video frame needs reduced frame number；
According to the current frame rate for needing reduced frame number and the RAW video frame, determine to abandon the of video frame
One interval；
According to the described first interval and the markd video frame of the band, determine to need the video frame abandoned；
Abandon the video frame for needing to abandon.
In one embodiment, it is described according to the described first interval and the markd video frame of the band, determine that needs are lost
The video frame abandoned, including：
According to the described first interval, alternative videos frame is determined；
Judge whether the alternative videos frame is the markd video frame of the band；
When the alternative videos frame is the markd video frame of the band, by next video of the alternative videos frame
Frame is determined as needing the video frame abandoned；
When the alternative videos frame is not the markd video frame of the band, the alternative videos frame is determined as needing
The video frame of discarding.
In one embodiment, when the conversion operation includes increasing frame operation, the present frame to the RAW video frame
Rate carries out conversion operation at equal intervals, including：
Determine that the RAW video frame needs increased frame number；
According to the increased frame number of the needs and the current frame rate of the RAW video frame, the of increase video frame is determined
Two intervals；
According to the described second interval, determine to be inserted into the position of video frame in the RAW video frame；
The previous RAW video frame of the position is replicated, and the RAW video frame after the duplication is inserted into the position
In.
Some beneficial effects of the embodiment of the present invention can include：
The technical solution is by respectively decoding the H264 video frame in unit time, and then to decoded RAW
Video frame carries out frame per second conversion, the frame per second conversion of the video frame of H264 standards is realized, so as to meet video to different frame per second
It is required that.
The present invention provides a kind of conversion equipment of H264 video frame rates, including：
Acquisition module, for obtaining the H264 video frame in unit time；
Decoder module, for being decoded to the H264 video frame in the unit time, obtains decoded RAW videos
Frame；
Modular converter, for carrying out conversion operation at equal intervals to the current frame rate of the RAW video frame.
In one embodiment, described device further includes：
Mark module, when including subtracting frame operation for the conversion operation, according to the classification of the H264 video frame, by institute
The I frames stated in H264 video frame are marked, and obtain with markd video frame；
The modular converter includes：
First determination sub-module, for determining that the RAW video frame needs reduced frame number；
Second determination sub-module, for according to the current frame rate for needing reduced frame number and the RAW video frame,
Determine that abandon video frame first is spaced；
3rd determination sub-module, for according to the described first interval and the markd video frame of the band, determining that needs are lost
The video frame abandoned；
Submodule is abandoned, for abandoning the video frame for needing to abandon.
In one embodiment, the 3rd determination sub-module includes：
First determination unit, for according to the described first interval, determining alternative videos frame；
Judging unit, for judging whether the alternative videos frame is the markd video frame of the band；
Second determination unit, will be described alternative for when the alternative videos frame is the markd video frame of the band
Next video frame of video frame is determined as needing the video frame abandoned；
3rd determination unit, will be described standby for when the alternative videos frame is not the markd video frame of the band
Video frame is selected to be determined as needing the video frame abandoned.
In one embodiment, the modular converter includes：
4th determination sub-module, when including increasing frame operation for the conversion operation, determines that the RAW video frame needs to increase
The frame number added；
5th determination sub-module, for according to it is described needs increased frame number and the RAW video frame current frame rate,
Determine the second interval of increase video frame；
6th determination sub-module, for according to the described second interval, determining to be inserted into video frame in the RAW video frame
Position；
Submodule is inserted into, for replicating the previous RAW video frame of the position, and by the RAW videos after the duplication
Frame is inserted into the position.
Some beneficial effects of the embodiment of the present invention can include：
The device is by respectively decoding the H264 video frame in unit time, and then to decoded RAW videos
Frame carries out frame per second conversion, the frame per second conversion of the video frame of H264 standards is realized, so as to meet requirement of the video to different frame per second.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
Specifically noted structure is realized and obtained in book, claims and attached drawing.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Attached drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Apply example to be used to explain the present invention together, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of flow chart of the conversion method of H264 video frame rates in the embodiment of the present invention；
Fig. 2 is a kind of flow chart for subtracting frame method of H264 video frame rates in the embodiment of the present invention；
Fig. 3 is a kind of flow chart for subtracting step S26 in frame method of H264 video frame rates in the embodiment of the present invention；
The flow chart that Fig. 4 is step S13 in a kind of conversion method of H264 video frame rates in the embodiment of the present invention；
Fig. 5 is a kind of block diagram of the conversion equipment of H264 video frame rates in the embodiment of the present invention；
Fig. 6 is a kind of block diagram of modular converter 53 in conversion equipment of H264 video frame rates in the embodiment of the present invention；
Fig. 7 is a kind of frame of the 3rd determination sub-module 533 in conversion equipment of H264 video frame rates in the embodiment of the present invention
Figure；
Fig. 8 is a kind of block diagram of modular converter 53 in conversion equipment of H264 video frame rates in the embodiment of the present invention.
Embodiment
The preferred embodiment of the present invention is illustrated below in conjunction with attached drawing, it will be appreciated that described herein preferred real
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Fig. 1 is a kind of flow chart of the conversion method of H264 video frame rates in the embodiment of the present invention, as shown in Figure 1, bag
Include following steps S11-S13：
Step S11, obtains the H264 video frame in unit time.
Wherein, unit time such as 1 second.
Step S12, decodes the H264 video frame in unit time, obtains decoded RAW video frame.
Step S13, conversion operation at equal intervals is carried out to the current frame rate of RAW video frame.
After H264 video frame progress frame per second in unit time is converted, then the H264 in other unit duration is regarded
The step of frequency frame progress frame per second conversion, conversion, is identical with above-mentioned steps S11-S13, until whole H264 video frame is carried out frame
Rate is changed.
Using the technical solution of the embodiment of the present invention, by being decoded respectively to the H264 video frame in unit time,
And then frame per second conversion is carried out to decoded RAW video frame, the frame per second conversion of the video frame of H264 standards is realized, so as to meet
Requirement of the video to different frame per second.
In above-described embodiment, conversion operation includes increasing frame operation or subtracts frame operation.For different conversion operations, to RAW
The method that the current frame rate of video frame is changed is also different.Illustrated respectively below for different conversion operations.
When conversion operation includes subtracting frame operation, due to including I frames, B frames, P frames in H264 video frame, wherein, I frames (I
Frame Intra pictures (intra picture)) are also known as, I frames are typically a kind of each GOP (video compress used in MPEG
Technology) first frame, by moderately compressing, as the reference point of random access, image can be treated as, therefore carry out subtracting frame
I frames cannot be abandoned during operation, but do not have the difference of I, B, P frame in the RAW video frame obtained after decoding, therefore, are carrying out subtracting frame
, it is necessary in advance come out I frame flags therein during operation.Fig. 2 show a kind of H264 video frame rates in the embodiment of the present invention
Subtract the flow chart of frame method, as shown in Fig. 2, comprising the following steps S21-S27：
Step S21, obtains the H264 video frame in unit time.
Step S22, according to the classification of H264 video frame, the I frames in H264 video frame are marked, and are obtained with mark
Video frame.
Step S23, decodes the H264 video frame in unit time, obtains decoded RAW video frame.
Step S24, determines that RAW video frame needs reduced frame number.For example, the current frame rate of H264 video frame is m, it is desirable to
Transformed frame per second is n, wherein, m ＞ n, then it is m-n to need reduced frame number.
Step S25, the frame number of reduction as needed and the current frame rate of RAW video frame, determine to abandon the of video frame
One interval.Due to be when subtract frame operation according to abandoning video frame at equal intervals, can as needed the frame number of reduction with
Current frame rate, determines to abandon the interval of video frame.
Step S26, according to the first interval and with markd video frame, determines to need the video frame abandoned.
Step S27, abandons the video frame for needing to abandon.
In above-described embodiment, as shown in figure 3, step S26 may be embodied as following steps S261-S264：
Step S261, according to the first interval, determines alternative videos frame.
Step S262, judges whether alternative videos frame is with markd video frame；If alternative videos frame is with mark
The video frame of note, then perform step S263；If alternative videos frame is not with markd video frame, step S264 is performed.
Step S263, next video frame of alternative videos frame is determined as to need the video frame abandoned.
Step S264, alternative videos frame is determined as to need the video frame abandoned.
Using the technical solution in above-described embodiment, the I frames in H264 video frame are marked in advance, so as to abandon
I frames can be recognized during frame exactly, and then accurately determine out the video frame of needs discarding, realize the frame per second of H264 video frame
Conversion.
When conversion operation includes increasing frame operation, when carrying out increasing frame to H264 video frame rates in above-described embodiment has been implemented
Step S11-S12 after, can be according to step S41-S44 implementation steps S13 as shown in Figure 4：
Step S41, determines that RAW video frame needs increased frame number.For example, the current frame rate of H264 video frame is m, it is desirable to
Transformed frame per second is n, wherein, n ＞ m, then it is n-m to need increased frame number.
Step S42, the current frame rate of increased frame number and RAW video frame as needed, determines the of increase video frame
Two intervals.Due to carry out increase frame operation when be according at equal intervals increase video frame, can as needed increased frame number with
Current frame rate, determines the interval of increase video frame.
Step S43, according to the second interval, determines to be inserted into the position of video frame in RAW video frame.
Step S44, replicates the previous RAW video frame of the position, and the RAW video frame after duplication is inserted into the position
In.
A kind of conversion method of the H264 video frame rates provided corresponding to above-described embodiment, the embodiment of the present invention also provide one
The conversion equipment of kind H264 video frame rates, as shown in figure 5, the device includes:
Acquisition module 51, for obtaining the H264 video frame in unit time；
Decoder module 52, for being decoded to the H264 video frame in unit time, obtains decoded RAW videos
Frame；
Modular converter 53, for carrying out conversion operation at equal intervals to the current frame rate of RAW video frame.
In one embodiment, above device further includes mark module, when including subtracting frame operation for conversion operation, according to
The classification of H264 video frame, the I frames in H264 video frame are marked, are obtained with markd video frame.
At this time, as shown in fig. 6, modular converter 53 includes：
First determination sub-module 531, for determining that RAW video frame needs reduced frame number；
Second determination sub-module 532, for the frame number of reduction as needed and the current frame rate of RAW video frame, determines
Abandon the first interval of video frame；
3rd determination sub-module 533, for according to the first interval and with markd video frame, determining to need what is abandoned to regard
Frequency frame；
Submodule 534 is abandoned, for abandoning the video frame for needing to abandon.
In one embodiment, as shown in fig. 7, the 3rd determination sub-module 533 includes：
First determination unit 5331, for according to the first interval, determining alternative videos frame；
Judging unit 5332, for judging whether alternative videos frame is with markd video frame；
Second determination unit 5333, for when alternative videos frame is with markd video frame, by alternative videos frame
Next video frame is determined as needing the video frame abandoned；
3rd determination unit 5334, for when alternative videos frame is not with markd video frame, by alternative videos frame
It is determined as needing the video frame abandoned.
In one embodiment, as shown in figure 8, modular converter 53 includes：
4th determination sub-module 535, when including increasing frame operation for conversion operation, it is increased to determine that RAW video frame needs
Frame number；
5th determination sub-module 536, for the current frame rate of increased frame number and RAW video frame as needed, determines
Increase the second interval of video frame；
6th determination sub-module 537, for according to the second interval, determining to be inserted into the position of video frame in RAW video frame；
Submodule 538 is inserted into, is inserted into for the previous RAW video frame of duplicating position, and by the RAW video frame after duplication
Into position.
Using device provided in an embodiment of the present invention, by being decoded respectively to the H264 video frame in unit time,
And then frame per second conversion is carried out to decoded RAW video frame, the frame per second conversion of the video frame of H264 standards is realized, so as to meet
Requirement of the video to different frame per second.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, the present invention can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more
The shape for the computer program product that usable storage medium is implemented on (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or square frame in journey and/or square frame and flowchart and/or the block diagram.These computer programs can be provided
The processors of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices, which produces, to be used in fact
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or
The instruction performed on other programmable devices is provided and is used for realization in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a square frame or multiple square frames.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and scope.In this way, if these modifications and changes of the present invention belongs to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these modification and variations.
Claims (4)
- A kind of 1. conversion method of H264 video frame rates, it is characterised in that including：Obtain the H264 video frame in unit time；H264 video frame in the unit time is decoded, obtains decoded RAW video frame；Conversion operation at equal intervals is carried out to the current frame rate of the RAW video frame；The conversion operation includes increasing frame operation or subtracts frame operation；When the conversion operation includes subtracting frame operation, before the H264 video frame in the unit time decodes, The method further includes：According to the classification of the H264 video frame, the I frames in the H264 video frame are marked, obtains and is regarded with markd Frequency frame；The current frame rate to the RAW video frame carries out conversion operation at equal intervals, including：Determine that the RAW video frame needs reduced frame number；According to the current frame rate for needing reduced frame number and the RAW video frame, between determine discarding video frame first Every；According to the described first interval and the markd video frame of the band, determine to need the video frame abandoned；Abandon the video frame for needing to abandon；The video frame abandoned according to the described first interval and the markd video frame of the band, definite needs, including：According to the described first interval, alternative videos frame is determined；Judge whether the alternative videos frame is the markd video frame of the band；It is when the alternative videos frame is the markd video frame of the band, next video frame of the alternative videos frame is true It is set to the video frame that needs abandon；When the alternative videos frame is not the markd video frame of the band, the alternative videos frame is determined as needing to abandon Video frame.
- 2. the method as described in claim 1, it is characterised in thatWhen the conversion operation includes increasing frame operation, the current frame rate to the RAW video frame carries out conversion at equal intervals and grasps Make, including：Determine that the RAW video frame needs increased frame number；According to the increased frame number of the needs and the current frame rate of the RAW video frame, between determine increase video frame second Every；According to the described second interval, determine to be inserted into the position of video frame in the RAW video frame；The previous RAW video frame of the position is replicated, and the RAW video frame after the duplication is inserted into the position.
- A kind of 3. conversion equipment of H264 video frame rates, it is characterised in that including：Acquisition module, for obtaining the H264 video frame in unit time；Decoder module, for being decoded to the H264 video frame in the unit time, obtains decoded RAW video frame；Modular converter, for carrying out conversion operation at equal intervals to the current frame rate of the RAW video frame；Described device further includes：Mark module, when including subtracting frame operation for the conversion operation, according to the classification of the H264 video frame, by described in I frames in H264 video frame are marked, and obtain with markd video frame；The modular converter includes：First determination sub-module, for determining that the RAW video frame needs reduced frame number；Second determination sub-module, for according to the current frame rate for needing reduced frame number and the RAW video frame, determining Abandon the first interval of video frame；3rd determination sub-module, for according to the described first interval and the markd video frame of the band, determining to need what is abandoned Video frame；Submodule is abandoned, for abandoning the video frame for needing to abandon；3rd determination sub-module includes：First determination unit, for according to the described first interval, determining alternative videos frame；Judging unit, for judging whether the alternative videos frame is the markd video frame of the band；Second determination unit, for when the alternative videos frame is the markd video frame of the band, by the alternative videos Next video frame of frame is determined as needing the video frame abandoned；3rd determination unit, for when the alternative videos frame is not the markd video frame of the band, alternatively being regarded described Frequency frame is determined as needing the video frame abandoned.
- 4. device as claimed in claim 3, it is characterised in that the modular converter includes：4th determination sub-module, when including increasing frame operation for the conversion operation, it is increased to determine that the RAW video frame needs Frame number；5th determination sub-module, for the current frame rate according to the increased frame number of the needs and the RAW video frame, determines Increase the second interval of video frame；6th determination sub-module, for according to the described second interval, determining to be inserted into the position of video frame in the RAW video frame Put；Submodule is inserted into, is inserted for replicating the previous RAW video frame of the position, and by the RAW video frame after the duplication Enter into the position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510195594.0A CN104796702B (en) | 2015-04-22 | 2015-04-22 | A kind of conversion method and device of H264 video frame rates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510195594.0A CN104796702B (en) | 2015-04-22 | 2015-04-22 | A kind of conversion method and device of H264 video frame rates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104796702A CN104796702A (en) | 2015-07-22 |
| CN104796702B true CN104796702B (en) | 2018-05-08 |
Family
ID=53561174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510195594.0A Expired - Fee Related CN104796702B (en) | 2015-04-22 | 2015-04-22 | A kind of conversion method and device of H264 video frame rates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104796702B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105392000B (en) * | 2015-10-29 | 2018-11-20 | 无锡天脉聚源传媒科技有限公司 | A kind of alignment schemes and device of video frame rate conversion |
| CN106028139A (en) * | 2016-05-16 | 2016-10-12 | 乐视控股（北京）有限公司 | Real-time transcoding method and device for use in frame rate reducing process |
| CN108377400A (en) * | 2018-03-07 | 2018-08-07 | 广州图普网络科技有限公司 | A kind of image transmitting optimization method, system and its apparatus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053183C (en) * | 1997-07-22 | 2000-06-07 | 北京燕化石油化工股份有限公司化工三厂 | Synthesis of improved thiobisphenol antioxidant |
| US8315307B2 (en) * | 2004-04-07 | 2012-11-20 | Qualcomm Incorporated | Method and apparatus for frame prediction in hybrid video compression to enable temporal scalability |
| US7733959B2 (en) * | 2005-06-08 | 2010-06-08 | Institute For Information Industry | Video conversion methods for frame rate reduction |
| JPWO2009110227A1 (en) * | 2008-03-03 | 2011-07-14 | パナソニック株式会社 | Recording apparatus, reproducing apparatus and method |
| CN102348117A (en) * | 2010-08-03 | 2012-02-08 | 深圳Tcl新技术有限公司 | System of transmitting digital high definition signal with low bandwidth, method thereof and network multimedia television |
| CN103248950A (en) * | 2013-04-28 | 2013-08-14 | 天脉聚源(北京)传媒科技有限公司 | System and method for customizing video frame rate |
-
2015
- 2015-04-22 CN CN201510195594.0A patent/CN104796702B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104796702A (en) | 2015-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3331242B1 (en) | Image prediction method and device | |
| US20120106669A1 (en) | Dynamic encode setting adjustment | |
| US10911817B2 (en) | Information processing system | |
| RU2013152610A (en) | FILTRATION METHOD, DECODING METHOD AND CODING METHOD | |
| CN104796702B (en) | A kind of conversion method and device of H264 video frame rates | |
| KR20130114734A (en) | Dynamic video switching | |
| JP2012509014A (en) | Multi-thread video coding using HRD information sharing and bit allocation wait | |
| CN105681826B (en) | Video-frequency data transmission system and method and video data decoding method | |
| CN110024409A (en) | The key frame of video flowing with multiple receivers weakens | |
| CN111263243B (en) | Video coding method and device, computer readable medium and electronic equipment | |
| CN110149515B (en) | Data transmission method and device | |
| CN106534871B (en) | The coding method of Video Codec and coding/decoding method | |
| TW200629786A (en) | System and method for using redundant representations in streaming applications | |
| CN106454348B (en) | A kind of video coding-decoding method and device | |
| CN106470291A (en) | Recover in the interruption in time synchronized from audio/video decoder | |
| MX2021002488A (en) | Method and apparatus for acquiring reference frame applied to bidirectional inter-frame prediction. | |
| CN103546754A (en) | Spatially scalable method and system for transcoding from H.264/AVC to SVC | |
| CN107613365A (en) | A kind of video broadcasting method and device | |
| CN103841451A (en) | Multimedia playing method, device and terminal | |
| CN115134629A (en) | Video transmission method, system, device and storage medium | |
| US10432946B2 (en) | De-juddering techniques for coded video | |
| CN105874808A (en) | Method and apparatus for video optimization using metadata | |
| CN107124610A (en) | A kind of method for video coding and device | |
| CN105323636A (en) | Video processing method and video processing device | |
| CN110572672B (en) | Video encoding and decoding method and device, storage medium and electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A method and device for converting H264 video frame rate Effective date of registration: 20210104 Granted publication date: 20180508 Pledgee: Inner Mongolia Huipu Energy Co.,Ltd. Pledgor: WUXI TVMINING MEDIA SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2020990001517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 Termination date: 20210422 |