CN105992027A - Video signal processing method and device - Google Patents
Video signal processing method and device Download PDFInfo
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- CN105992027A CN105992027A CN201510052328.2A CN201510052328A CN105992027A CN 105992027 A CN105992027 A CN 105992027A CN 201510052328 A CN201510052328 A CN 201510052328A CN 105992027 A CN105992027 A CN 105992027A
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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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
The present invention discloses a video signal processing method. The method comprises: obtaining the capacity parameter of a mobile terminal; performing decompression of video signals received by employing a decompression mode corresponding to a first compression mode, and obtaining an original video code stream; determining the mobile terminal can support the video resolution corresponding to the original video code stream or not according to the capacity parameter; if the mobile terminal can support the video resolution corresponding to the original video code stream, employing a second compression mode to perform compression of the original video code stream and then send the compressed original video code stream to the mobile terminal; and if the mobile terminal cannot support the video resolution corresponding to the original video code stream, regulating the resolution of the original video code stream to the video resolution which can be supported by the mobile terminal, and employing the second compression mode to compress the regulated original video code stream and then send the compressed original video code stream to the mobile terminal. The present invention further discloses a video signal processing device.
Description
Technical field
The present invention relates to image/video encoding and decoding, particularly relate to a kind of video signal processing method and device.
Background technology
The development maked rapid progress along with information technologys such as mobile communication and the becoming increasingly popular of network, user for
The demand of mobile video and mobile digital TV is more and more stronger.
Japan formulated ISDB-T (Integrated Services Digital Broadcasting) mark in 1999
Standard, i.e. integrated digital broadcast service, be multiple access based on MPEG-2 or MPEG-4 standard access transmission,
And high-definition television (HDTV) and the standard system of standard definition television broadcast can be carried out.
ISDB-T DTV typically has three kinds of method of reseptances: special television machine, Set Top Box and mobile WI-FI
Focus, first two mode all cannot meet mobile demand, and last a kind of mode coordinates mobile terminal to realize
The mobile reception of DTV, can allow user enjoy digital television business whenever and wherever possible.Common realization side
Method is: mobile WI-FI focus receives digital television signal by antenna, is reduced to numeral electricity after demodulation descrambling
Depending on video code flow, then it is sent to mobile terminal side by WI-FI signal, completes the broadcasting of video flowing.
Owing to the high-definition-television signal of ISDB-T technology definition uses the video image compression standard of MPEG-2,
This standard compression ratio is the highest, and the stream rate after compression is up to 2MB/s, i.e. 16Mbps, for 802.11b/g
In theory 54Mpbs but for the bandwidth of actually only 20～30Mpbs, transmission pressure is very big, if
Slightly far or WI-FI signal intensity is not enough for mobile terminal and mobile WI-FI focus distance, then arises that and regards
Frequency plays phenomenons such as getting stuck；It addition, the screen resolution of the intelligent mobile terminal of different time issue and video
The disposal ability play is uneven, in addition to a few high-end intelligent mobile terminal, and major part low and middle-end intelligence
Can mobile terminal cannot real-time play highest resolution be the video of 1080p, cause mobile digital TV business
Carry out limited.
Summary of the invention
For solving the technical problem of existing existence, the embodiment of the present invention provide a kind of video signal processing method and
Device.
Embodiments provide a kind of video signal processing method, including:
Obtain capacity of mobile terminal parameter；
The video signal received is decompressed by the decompression mode using the first compress mode corresponding, obtains
Original video code stream；
Judge whether described mobile terminal can support that described original video code stream is corresponding according to described ability parameter
Video resolution；
If the determination result is YES, send after using the second compress mode that described original video code stream is compressed
To described mobile terminal；
If judged result is no, it is described mobile terminal institute energy by the resolution adjustment of described original video code stream
Support video resolution, and use the second compress mode to adjust after original video code stream be compressed after
It is sent to described mobile terminal.
In such scheme, the described ability parameter of acquisition includes that the maximum video that described mobile terminal is supported is differentiated
Rate；
Accordingly, it is that described mobile terminal can be supported by by the resolution adjustment of described original video code stream
High video resolution.
In such scheme, described judge whether described mobile terminal can be supported described according to described ability parameter
The video resolution that original video code stream is corresponding, including:
If the maximum video resolution of described mobile terminal support is not less than described corresponding the regarding of original video code stream
Frequency division resolution, then judged result is yes；Otherwise judged result is no.
In such scheme, the video code flow compression efficiency of described second compress mode is higher than described first compression side
Formula.
The embodiment of the present invention additionally provides a kind of apparatus for processing of video signals, including:
Described master control and baseband processing module, for obtaining the ability parameter of mobile terminal, and be sent to described
Video compressing module；
Described video compressing module, regards reception for the decompression mode using the first compress mode corresponding
Frequently signal decompresses, and obtains original video code stream；Described mobile terminal is judged according to described ability parameter
Whether can support the video resolution that described original video code stream is corresponding, if the determination result is YES, use the
Two compress modes are sent to described mobile terminal after being compressed described original video code stream；If judged result
It is no, is that the video that described mobile terminal can be supported by is differentiated by the resolution adjustment of described original video code stream
Rate, and use the second compress mode to be sent to described movement after the original video code stream after adjusting is compressed
Terminal.
In such scheme, described device also includes: signal receiving module, for receiving video from antenna of eating dishes without rice or wine
Signal is also sent to described video compressing module.
In such scheme, described ability parameter includes the maximum video resolution that described mobile terminal is supported；
Described video compressing module is further used for, and is described by the resolution adjustment of described original video code stream
The maximum video resolution that mobile terminal can be supported by.
In such scheme, described video compressing module, it is additionally operable to judge that described the highest of mobile terminal support regards
Whether frequency division resolution is not less than the video resolution that described original video code stream is corresponding, if being not less than, then judges
The video resolution that described original video code stream is corresponding can be supported for mobile terminal；Otherwise, it is determined that for mobile
Terminal can not support the video resolution that described original video code stream is corresponding.
In such scheme, the video code flow compression efficiency of described second compress mode is higher than described first compression side
Formula.
In such scheme, described device also includes: WI-FI signal transmitting and receiving module, for by described master control and
The data stream of baseband processing module acquisition request ability parameter is sent to mobile terminal by WI-FI signal；Also
For being received the ability parameter of mobile terminal feedback by WI-FI signal, and ability parameter is supplied to described
Master control and baseband processing module.
A kind of video signal processing method that the embodiment of the present invention is provided and device, use the first compress mode
The video signal received is decompressed by corresponding decompression mode, obtains original video code stream；According to shifting
Dynamic terminal capability parameter judges whether described mobile terminal can support the video that described original video code stream is corresponding
Resolution；If the determination result is YES, after using the second compress mode that described original video code stream is compressed
It is sent to described mobile terminal；If judged result is no, by the resolution adjustment of described original video code stream it is
The video resolution that described mobile terminal can be supported by, and use the second compress mode to original regarding after adjusting
Frequency code stream is sent to described mobile terminal after being compressed.As can be seen here, by the video signal decompressed
The compress mode recompression using more high compression ratio encodes, and can save stream rate, it is to avoid video playback
The phenomenon got stuck；Comparison based on video resolution, can carry out the adjustment of video signal resolution, so that
Mobile terminal can play opening of the raw video signal of arbitrary resolution, beneficially mobile digital TV business
Exhibition.
Accompanying drawing explanation
Fig. 1 is mobile digital TV networking schematic diagram；
The video signal processing method schematic flow sheet that Fig. 2 provides for the embodiment of the present invention；
The apparatus for processing of video signals structural representation that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
The technical solution of the present invention is further elaborated with specific embodiment below in conjunction with the accompanying drawings.
As it is shown in figure 1, the function of mobile digital TV is realized by two kinds of equipment combinations: mobile WI-FI heat
Point device and mobile terminal.Mobile WI-FI hotspot device is key equipment therein, and it is mobile that it is responsible for reception
The video signal of DTV, and it is sent to mobile terminal by WI-FI signal, complete the number of mobile terminal
The broadcasting of word TV programme.Meanwhile, move WI-FI hotspot device can also access cellular mobile network (3G or
4G) base station, provides WI-FI online clothes for mobile terminals such as smart mobile phone, panel computer, notebook computers
Business.
Embodiment one
A kind of video signal processing method that the embodiment of the present invention provides, it is adaptable to above-mentioned mobile WI-FI focus
Equipment, as in figure 2 it is shown, the method includes:
Step 201, obtains capacity of mobile terminal parameter.
Described ability parameter at least includes that one or more video resolutions that described mobile terminal supports are (such as
1080p, 720p etc.), it is also possible to include the video compress mode etc. that mobile terminal is supported.
Mobile WI-FI hotspot device can be connected directly to its ability parameter of acquisition for mobile terminal by WI-FI.
Can also be by low-power consumption connected modes such as bluetooths to its ability parameter of acquisition for mobile terminal.
Step 202, the video signal received is solved by the decompression mode using the first compress mode corresponding
Compression, obtains original video code stream.
Here the first compress mode is that video signal launch party (the DTV signal transmitting tower in such as Fig. 1) adopts
Video compress mode (such as MPEG-2, MPEG-4 etc.).
After decompression obtains original video code stream, it is also possible to know corresponding one or more of original video code stream
Video resolution, such as, original video code stream includes the FULLSEG code stream of high definition HDTV, resolution
For 1080p (1920x1280) and the ONESEG code stream of SD, resolution is QVGA (320x240).
According to described ability parameter, step 203, judges whether described mobile terminal can support described original regard
The video resolution that frequency code stream is corresponding, if the determination result is YES, directly performs step 205；If judged result
It is no, performs step 204.
The ability parameter of mobile terminal is able to indicate that one or more video resolutions that mobile terminal is supported,
Wherein can include the maximum video resolution that described mobile terminal is supported.The maximum video that mobile terminal is supported
The resolution video resolution corresponding with original video code stream compares, if the former is greater than or equal to the latter,
Then it is judged to support the video resolution that original video code stream is corresponding, is otherwise judged to not support original video code
The video resolution that stream is corresponding.
Step 204, is that described mobile terminal can be supported by by the resolution adjustment of described original video code stream
Video resolution, then performs step 205.
Wherein it is possible to be that described mobile terminal can be supported by by the resolution adjustment of described original video code stream
Maximum video resolution.
When mobile terminal does not support video resolution corresponding to original video code stream, the video letter received is described
Number video resolution too high, need to reduce its video resolution, reduce video resolution and actually reduce
The resolution of image.Can use such a way: for an image array, often row extracts pixel, root
From the often row pixel extracted, m pixel, then, root is removed every n pixel according to target resolution
According to target resolution every N row pixel is deleted M row pixel.Wherein, the value of n, m, N, M is according to former
Beginning resolution and target resolution determine, reduce the image after resolution and the often row pixel of original image and
The ratio of each column pixel is identical.
Such as, the resolution of video code flow is reduced to QHD (960x540) by 1080p (1920x1080)
Time, any one image array therein is needed often to go extraction pixel, every based on the often row pixel extracted
Removing a pixel every two pixels, every two row form new image after deleting string, and this image is with former
Beginning image scaled is identical.
Step 205, uses the second compress mode to be sent to after being compressed described original video code stream described
Mobile terminal.
Compression algorithm is largely fixed the quality of video, compression ratio, efficiency of transmission, transmission speed etc.
Performance.Here video code flow compression efficiency is used to regard original higher than the second compress mode of the first compress mode
Frequency code stream is sent to mobile terminal after being compressed, and so can save bandwidth, to avoid mobile terminal playing
The phenomenon got stuck during video.For example, it is assumed that the first compress mode is MPEG-2, the second compress mode
For MPEG-4, then under identical video quality, MPEG-4 can double than MPEG-2
Compression efficiency, say, that, it is possible to save the stream rate (bandwidth taken) of about 50%.Need
Bright, the compress mode of the embodiment of the present invention is not limited to use above-mentioned MPEG-2, MPEG-4,
As long as ensure that the compression efficiency of the second compress mode is higher than the first compress mode.
Embodiment two
In order to realize above-mentioned video signal processing method, as it is shown on figure 3, the embodiment of the present invention additionally provides one
Planting device, this device is applied in mobile WI-FI hotspot device, including: master control and baseband processing module 10
With video compressing module 20, wherein:
Described master control and baseband processing module 10, for obtaining the ability parameter of mobile terminal, and be sent to institute
State video compressing module 20；
Described video compressing module 20, the decompression mode being used for using the first compress mode corresponding is to reception
Video signal decompresses, and obtains original video code stream；Judge described mobile whole according to described ability parameter
Whether end can support the video resolution that described original video code stream is corresponding, if the determination result is YES, uses
Second compress mode is sent to described mobile terminal after being compressed described original video code stream；If judging knot
Fruit is no, is that the video that described mobile terminal can be supported by divides by the resolution adjustment of described original video code stream
Resolution, and use the second compress mode to be sent to described shifting after the original video code stream after adjusting is compressed
Dynamic terminal.
Described device also includes: signal receiving module 30, for receiving video signal from antenna of eating dishes without rice or wine and send
To described video compressing module 20.
Described ability parameter at least includes one or more video resolutions that described mobile terminal is supported, wherein
The maximum video resolution that described mobile terminal is supported can be included；
Accordingly, described video compressing module 20 is further used for, by the resolution of described original video code stream
It is adjusted to the maximum video resolution that described mobile terminal can be supported by.
Described video compressing module 20, is additionally operable to judge that the maximum video resolution of described mobile terminal support is
No being not less than the video resolution that described original video code stream is corresponding, if being not less than, being then judged to mobile terminal
The video resolution that described original video code stream is corresponding can be supported；Otherwise, it is determined that can not for mobile terminal
Support the video resolution that described original video code stream is corresponding.
The video code flow compression efficiency of described second compress mode is higher than described first compress mode.
Described master control and baseband processing module 10, the described original video code stream after being additionally operable to compression adds
Close.
Described device can also include: WI-FI signal transmitting and receiving module 40, for will encryption after described original
Video code flow is sent to described mobile terminal by WI-FI signal.
Described WI-FI signal transmitting and receiving module 40, is additionally operable to ask described master control and baseband processing module 10
The data stream of acquisition capability parameter is sent to mobile terminal by WI-FI signal；It is additionally operable to be believed by WI-FI
Number receive the ability parameter of mobile terminal feedback, and ability parameter is supplied to described master control and Base-Band Processing mould
Block 10.
Cellular mobile network (3G or 4G) base station can also be accessed, for intelligence for mobile WI-FI hotspot device
The subscriber equipmenies such as energy mobile phone, panel computer, notebook computer provide the function of WI-FI service on net, such as figure
Shown in 3, this device also includes:
Cellular mobile network radio-frequency (RF) receiving and transmission module 50, for receiving from antenna of eating dishes without rice or wine or launching cellular mobile network signal；
And modulation /demodulation digital baseband signal, it is achieved mutual with cellular mobile network；
Accordingly, master control and baseband processing module 10, it is additionally operable to modulation /demodulation digital baseband signal, and provides
It is sent to mobile terminal by WI-FI signal to described WI-FI signal transmitting and receiving module 40.
Embodiment three
Below in conjunction with said method and device, by a specific embodiment, the solution of the present invention is described.
1, capacity of mobile terminal parameter is obtained.
This step has been cooperated by master control and baseband processing module 10 and WI-FI signal transmitting and receiving module 40.When
After mobile terminal and mobile WI-FI hotspot device set up WI-FI connection, master control and baseband processing module 10
By the ability parameter of WI-FI signal transmitting and receiving module 40 active obtaining mobile terminal (video resolution of support,
Video compress mode etc.), and the ability parameter of acquisition is sent to video compressing module 20.
2, use MPEG-2 that the video signal received is decompressed, obtain original video code stream.
This step is completed by video compressing module 20, by the video code flow decoded back of MPEG-2 form is
Original video code stream.
3, judge whether mobile terminal can support video resolution 1080p that original video code stream is corresponding.
This step is completed by video compressing module 20, judges to move according to the video resolution of mobile terminal support
Whether dynamic terminal can support the broadcasting of 1080p (1920x1280 pixel) resolution, it is assumed that mobile terminal props up
The maximum video resolution held is 1080p, then be judged to support, jump directly to step 5；Assume mobile whole
The maximum video resolution that end is supported is 720p, then be judged to not support, enters step 4.
4, the resolution of original video code stream is adjusted.
This step is completed by video compressing module 20, owing to the maximum video resolution of mobile terminal support is
720p, then be reduced to original 1080p video be suitable for the 720p of mobile terminal playing, even can also reduce to
More low resolution, such as QHD (960x640 pixel), WVGA (800x480 pixel) etc..
5, use MPEG-4 that the original video code stream after adjusting is compressed.
This step is completed by video compressing module 20, is responsible for the original video code stream after adjusting and is encoded to higher
The video code flow of compression ratio.The compression efficiency doubled than MPEG-2 due to MPEG-4, say, that
The stream rate of about 50% can be saved.
6, send after the video code flow to the more high compression ratio after compression is encrypted.
This step has been cooperated by master control and baseband processing module 10 and WI-FI signal transmitting and receiving module 40.Main
Video code flow is encrypted by control and baseband processing module 10, then by WI-FI signal by WI-FI signal
Transceiver module 40 is sent to mobile terminal.
As can be seen here, the embodiment of the present invention by using the compression of more high compression ratio to the video signal decompressed
Mode recompression encodes, and can save stream rate, it is to avoid the phenomenon that video playback gets stuck；Based on video
The comparison of resolution, can carry out the adjustment of video signal resolution, so that mobile terminal can be play arbitrarily
Carrying out of the raw video signal of resolution, beneficially mobile digital TV business.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can use hardware embodiment, software implementation or combine software and
The form of the embodiment of hardware aspect.And, the present invention can use and wherein include calculating one or more
The computer-usable storage medium of machine usable program code (includes but not limited to disk memory and optical storage
Device etc.) form of the upper computer program implemented.
The present invention is with reference to method, equipment (system) and computer program according to embodiments of the present invention
Flow chart and/or block diagram describe.It should be understood that can be by computer program instructions flowchart and/or side
Flow process in each flow process in block diagram and/or square frame and flow chart and/or block diagram and/or the knot of square frame
Close.Can provide these computer program instructions to general purpose computer, special-purpose computer, Embedded Processor or
The processor of other programmable data processing device is to produce a machine so that by computer or other can
The instruction that the processor of programming data processing equipment performs produces for realizing in one flow process or multiple of flow chart
The device of the function specified in flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide computer or other programmable data processing device
In the computer-readable memory worked in a specific way so that be stored in this computer-readable memory
Instruction produces the manufacture including command device, and this command device realizes at one flow process of flow chart or multiple stream
The function specified in journey and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makes
Sequence of operations step must be performed to produce computer implemented process on computer or other programmable devices,
Thus the instruction performed on computer or other programmable devices provides for realizing in one flow process of flow chart
Or the step of the function specified in multiple flow process and/or one square frame of block diagram or multiple square frame.
The above, only presently preferred embodiments of the present invention, it is not intended to limit protection scope of the present invention.
Claims (10)
1. a video signal processing method, it is characterised in that including:
Obtain capacity of mobile terminal parameter；
The video signal received is decompressed by the decompression mode using the first compress mode corresponding, obtains
Original video code stream；
Judge whether described mobile terminal can support that described original video code stream is corresponding according to described ability parameter
Video resolution；
If the determination result is YES, send after using the second compress mode that described original video code stream is compressed
To described mobile terminal；
If judged result is no, it is described mobile terminal institute energy by the resolution adjustment of described original video code stream
Support video resolution, and use the second compress mode to adjust after original video code stream be compressed after
It is sent to described mobile terminal.
Video signal processing method the most according to claim 1, it is characterised in that the described ability of acquisition
Parameter includes the maximum video resolution that described mobile terminal is supported；
Accordingly, it is that described mobile terminal can be supported by by the resolution adjustment of described original video code stream
High video resolution.
Video signal processing method the most according to claim 2, it is characterised in that described according to described energy
Force parameter judges whether described mobile terminal can support the video resolution that described original video code stream is corresponding,
Including:
If the maximum video resolution of described mobile terminal support is not less than described corresponding the regarding of original video code stream
Frequency division resolution, then judged result is yes；Otherwise judged result is no.
Video signal processing method the most according to claim 1, it is characterised in that described second compression side
The video code flow compression efficiency of formula is higher than described first compress mode.
5. an apparatus for processing of video signals, it is characterised in that including:
Described master control and baseband processing module, for obtaining the ability parameter of mobile terminal, and be sent to described
Video compressing module；
Described video compressing module, regards reception for the decompression mode using the first compress mode corresponding
Frequently signal decompresses, and obtains original video code stream；Described mobile terminal is judged according to described ability parameter
Whether can support the video resolution that described original video code stream is corresponding, if the determination result is YES, use the
Two compress modes are sent to described mobile terminal after being compressed described original video code stream；If judged result
It is no, is that the video that described mobile terminal can be supported by is differentiated by the resolution adjustment of described original video code stream
Rate, and use the second compress mode to be sent to described movement after the original video code stream after adjusting is compressed
Terminal.
Apparatus for processing of video signals the most according to claim 5, it is characterised in that
Described device also includes: signal receiving module, for receiving video signal from antenna of eating dishes without rice or wine and be sent to
Described video compressing module.
Apparatus for processing of video signals the most according to claim 5, it is characterised in that
Described ability parameter includes the maximum video resolution that described mobile terminal is supported；
Described video compressing module is further used for, and is described by the resolution adjustment of described original video code stream
The maximum video resolution that mobile terminal can be supported by.
Apparatus for processing of video signals the most according to claim 7, it is characterised in that
Described video compressing module, is additionally operable to judge maximum video resolution that described mobile terminal supports whether
Being not less than the video resolution that described original video code stream is corresponding, if being not less than, being then judged to mobile terminal energy
Enough support the video resolution that described original video code stream is corresponding；Otherwise, it is determined that can not prop up for mobile terminal
Hold the video resolution that described original video code stream is corresponding.
Apparatus for processing of video signals the most according to claim 5, it is characterised in that
The video code flow compression efficiency of described second compress mode is higher than described first compress mode.
Apparatus for processing of video signals the most according to claim 5, it is characterised in that
Described device also includes: WI-FI signal transmitting and receiving module, for by described master control and baseband processing module
The data stream of acquisition request ability parameter is sent to mobile terminal by WI-FI signal；It is additionally operable to pass through WI-FI
Signal receives the ability parameter of mobile terminal feedback, and ability parameter is supplied to described master control and Base-Band Processing
Module.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052328.2A CN105992027A (en) | 2015-01-30 | 2015-01-30 | Video signal processing method and device |
| PCT/CN2015/082411 WO2016119386A1 (en) | 2015-01-30 | 2015-06-25 | Video signal processing method, device and computer storage media |
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| CN201510052328.2A CN105992027A (en) | 2015-01-30 | 2015-01-30 | Video signal processing method and device |
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| CN108337533A (en) * | 2017-01-17 | 2018-07-27 | 腾讯科技（深圳）有限公司 | Video-frequency compression method and device |
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| CN112135189A (en) * | 2020-09-23 | 2020-12-25 | 上海博泰悦臻网络技术服务有限公司 | Vehicle-mounted video data processing method, device and system |
| CN113038137B (en) * | 2021-03-09 | 2022-12-23 | 深圳市东微智能科技股份有限公司 | Video data output method, system, device and computer readable storage medium |
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| CN101212587A (en) * | 2006-12-30 | 2008-07-02 | 乐金电子(中国)研究开发中心有限公司 | Digital TV receiver and method adaptive to display parameters of display terminal |
| JP2013009098A (en) * | 2011-06-23 | 2013-01-10 | Ricoh Co Ltd | Multi-point television conference system |
| CN103167318A (en) * | 2011-12-13 | 2013-06-19 | 中国电信股份有限公司 | Streaming media processing method, device, server and system |
| CN103220577A (en) * | 2012-01-18 | 2013-07-24 | 腾讯科技（深圳）有限公司 | Method, device and system for video displaying |
| CN103379363A (en) * | 2012-04-19 | 2013-10-30 | 腾讯科技（深圳）有限公司 | Video processing method and apparatus, mobile terminal and system |
| CN103595978A (en) * | 2012-08-16 | 2014-02-19 | 中国电信股份有限公司 | Negotiation coding resolution method used for video communication and system thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108337533A (en) * | 2017-01-17 | 2018-07-27 | 腾讯科技（深圳）有限公司 | Video-frequency compression method and device |
| CN108337533B (en) * | 2017-01-17 | 2021-07-09 | 腾讯科技（深圳）有限公司 | Video compression method and device |
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| WO2016119386A1 (en) | 2016-08-04 |
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