CN102647614A - Method and device for achieving video high definition - Google Patents
Method and device for achieving video high definition Download PDFInfo
- Publication number
- CN102647614A CN102647614A CN2012101339818A CN201210133981A CN102647614A CN 102647614 A CN102647614 A CN 102647614A CN 2012101339818 A CN2012101339818 A CN 2012101339818A CN 201210133981 A CN201210133981 A CN 201210133981A CN 102647614 A CN102647614 A CN 102647614A
- Authority
- CN
- China
- Prior art keywords
- video
- file
- avs
- grf
- dvd
- 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.)
- Pending
Links
Images
Landscapes
- Television Signal Processing For Recording (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
The invention provides a method and a device for achieving high definition and wide screen of videos. The method includes establishing and processing video project file grapher (GRF) by using direct-show channels, submitting the GRF to audio video standard (Avs) of the video processing platform with powerful functions to perform accurate clipping to digital video disk (DVD) source video, simultaneously, calling excellent pixel compensation and image optimization plugins in the Avs, writing in corresponding script parameters and corresponding parameters which improve the resolution ratio of the source dvd to more than 1280 x 720 p, submitting Avs files with various script parameters written in to a video encoder x264 capable of outputting final result files to recode the video, and finally obtaining the video which promotes standard definition of 720 x 480 resolution ratio of the original dvd to resolution ratio of more than 1280 x 720 p and specification of 16: 9. According to the method and the device, image quality is promoted on the basis of the original video, so that quality of programs broadcasting online at present is developed and promoted to the maximum extent in the condition of limited fundamental band width, and better online video watching experience is provided for users.
Description
Technical field
The present invention relates to the method and the device in the high Qinghua of a kind of video widescreen.
Background technology
Rising year by year of the network bandwidth and popularity rate; Rising year by year of display device area and resolution; Rising year by year of video source media base and resolution onlinely watched rising year by year of video number ... indicating the continuous lifting of user's request on " amount " and " matter ".
Today that the Online Video industry competition is very fierce, under the situation of content providers formula and kind and the very big homogeneity of quality existence, the popularity of content, promptness and making are fast broadcasted has extraordinary competitive advantage.
Current 16: 9 widescreen display devices have obtained popularizing greatly, no matter are IT industry or domestic electronic industry, and " high definition " " widescreen " notion of covering the sky and the earth is ubiquitous with propaganda.Yet copyright side offers the resource of each video website at present; The acute great majority of hot broadcast are the DVD specification video of 4: 3 ratios; Just 4: 3 aspect ratios; 480p SD specification, and this 4: 3 ratio is not again real pure 4: 3 is just in order to meet and supports 4: 3 ratios that 4: 3 video ratio standards of dvd are reached through black surround about adding on the basis of 16: 9 ratios of script effective video picture.
Upload to that transcoding server carries out broadcasting behind the transcoding on the line if this type source directly is left intact to gather; The user who has 16: 9 display devices switches to full frame state when watching; In order to keep picture indeformable; Player can be filled black picture element automatically about picture, add dvd video black surround up and down originally, and the screen that meets very much 16: 9 the widescreen display device of golden ratio that human eye watches so originally wide black surround can occur all around; And active area is middle one, has so just caused the significant wastage of very narrow visual impression and screen effective display area.At present mostly video website all adopts much at one processing scheme to make and handles 4: 3 video source of DVD that the resource ratio occupies the majority, and final video playback effect is exactly during full frame watching, to have wide black surround at 16: 9 around the screen.Perhaps adopted helpless processing scheme in order to keep in the former DVD video captions in the black surround down: promptly simply dismiss black surround on the video in the transcoding on line, but about when finally watching, also having formed with following U type black surround.Influenced the waste of viewing experience and screen display area greatly.
Simultaneously; Mostly during the at present online acquisition process source video down of video website; Do not carry out any optimization process; From the DVD CD, video frequency program gathered out and promptly import line into and carry out transcoding, the common H264/AV coding parameter that coding adopts on the line can not be optimized lifting to source DVD image quality.Under limited base-bandwidth condition, can not make the program quality that broadcasts of reaching the standard grade farthest excavated and promote.
Summary of the invention
The present invention provides a kind of and realizes Video processing optimisation technique under the line of " video high definition widescreenization "; Video production is become popular universal above resolution specification of 720p and 16: 9 picture displaying ratio of standard at present; 16: 9 display devices of Perfect Matchings make 16: 9 full frame no any black surround, lifting optimization image quality on the video elementary of source of watching of display device to greatest extent; Make image quality more clear; The display quality of captions also can have qualitative leap, makes the program quality that broadcasts of reaching the standard grade at present under limited base-bandwidth condition, farthest excavated lifting, for the user provides better Online Video viewing experience.
The present invention provides a kind of method that realizes video high definition widescreenization, comprising:
(1) gathers dvd source video;
(2) set up " grf " video decode bridge joint file;
(3) set up the avs project file, call the grf file in the avs file;
(4) use encoder to carry out the video that the video recodification obtains final high definition widescreenization.
Wherein step (1) specifically comprises: former video is TV play, with TV play with the form of a file of each collection harmless from dvd, gather after, audio frequency and video are packaged into mkv or vob or mpg video format.
Wherein step (2) specifically comprises: set up and storage " grf " video decode bridge joint file; Use therein audio frequency and video separator is " halli media splitter "; Audio/video decoder is " ffdshow " decoding bag; Said separator separates goes out audio frequency and video and gives the output of decoding of said decoder, with obtaining the Video processing work of decoded raw image data after giving.
Wherein step (3) specifically comprises: set up the avs file, call the grf file in the avs file, in the avs file, write and cut the black surround parameter and adjust the pseudo-details of picture pixel and strengthen and optimize the plug-in unit parameter, picture is risen to the above specification of 720p.
Wherein step (4) specifically comprises: use the encoder x264 that meets the H264/AVC standard to carry out video and recode; Be written into the avs plug-in code file of finishing writing in the step 3 and carry out the video recodification, obtaining final ratio is the finished product video file after the process image quality optimization process 16: 9, that 720p is above.
The present invention also provides a kind of device of realizing video high definition widescreenization, comprising:
Collecting unit is used to gather dvd source video;
Bridge-jointing unit is set up " grf " video decode bridge joint file;
Temporary location is set up the middle project file of avs, calls the grf file in the avs file;
Coding unit uses encoder to carry out the video that the video recodification obtains final high definition widescreenization.
Wherein collecting unit is concrete accomplishes following function: former video is TV play, with TV play with the form of a file of each collection harmless from dvd, gather after, audio frequency and video are packaged into mkv or vob or mpg video format.
Wherein bridge-jointing unit is specifically accomplished following function: set up and storage " grf " video decode bridge joint file; Use therein audio frequency and video separator is " halli media splitter "; Audio/video decoder is " ffdshow " decoding bag; Said separator separates goes out audio frequency and video and gives the output of decoding of said decoder, with obtaining the Video processing work of decoded raw image data after giving.
Wherein temporary location is concrete accomplishes following function: set up the avs file, call the grf file in the avs file, in the avs file, write and cut the black surround parameter and adjust the pseudo-details of picture pixel and strengthen and optimize the plug-in unit parameter, picture is risen to the above specification of 720p.
Wherein coding unit is specifically accomplished following function: use the encoder x264 that meets the H264/AVC standard to carry out video and recode; Be written into the avs plug-in code file of finishing writing in the temporary location and carry out the video recodification, obtaining final ratio is the finished product video file after the process image quality optimization process 16: 9, that 720p is above.
Description of drawings
Fig. 1 is a video high definition widescreen making flow chart of the present invention.
Fig. 2 is a concrete example of setting up the grf file.
Fig. 3 A shows the video pictures that uses in the prior art.
Fig. 3 B demonstration utilizes scheme of the present invention to obtain the optimization of video picture.
Embodiment
The present invention comprises the method for video high definition widescreenization:
1. utilize the directshow passage of windows system to set up the project file GRF that handles video; And give powerful video processing procedure platform Avs (AVS itself does not provide the destination file of final output, only provides feature card and script argument that video each item is handled);
2.Avs in write the up and down script argument of black surround of accurate cutting dvd source video;
3. original dvd ratio is that to have hard captions on the following black surround in 4: 3 the video (be that these captions are coded in the video black surround; Can not cancellation or propose to use); About cutting picture, also removed the hard captions in the video black surround with regard to cutting out in the black surround, it is subsequent use so just to need to pass through the soft captions of captions software development srt again;
4.Avs in call outstanding pixel compensation and picture and optimize plug-in unit, and write corresponding script parameter and the source of lifting dvd resolution to 1280x720p or above relevant parameter.
5. will finish writing the avs file of various processing scripts parameters gives the video encoder x264 (high-quality AVC/H.264 video encoder) that can export the final result file to carry out the video recodification;
6. finally obtained the SD definition specification video of the 720x480 resolution of original dvd is risen to the 1280x720p of standard or the video of 16: 9 specifications of above resolution.Import together together with the soft captions of srt made in the 3rd step that transcoding server carries out broadcasting behind the transcoding on the line into, just can obtain 16: 9 version videos of realization the highest " ultra clear " specification in the program page or leaf.
Utilize scheme of the present invention to realize that the flow process of making is divided into four parts:
(1) video processing part
(2) Audio Processing part
(3) part made in captions
(4) part is uploaded in the encapsulation packing
Below with reference to accompanying drawing 1, each several part is described in detail respectively:
(1) video processing part
This link is divided into and is following 4 steps:
1, gathers dvd source video;
2, set up " grf " video decode bridge joint file;
3, set up the avs file, call the grf file in the avs file, in the avs file, write and cut the pseudo-details reinforcement of black surround parameter adjustment picture pixel optimization plug-in unit parameter, picture is risen to the 720p specification;
4, use the encoder x264 that meets the H264/AVC standard to carry out the video recodification and obtain final 720p video.
Below be detailed elaboration to each step:
(1) gather dvd source video:
Collection of TV plays number among the DVD of source is not to exist by file of every collection; At first with the form of the file of each collection of TV play harmless from dvd, gather after, audio frequency and video are packaged into and just can directly upload on the line transcoding server behind the common video format such as mkv, mpg or vob and can transcoding broadcast or shield and waited for.This is a common way in the past, is left intact, and gathers to upload and finishes the work.Gathering the source video of DVD CD has not here just given unnecessary details with the work of uploading.Carrying out " high definition widescreenization " by the video coding group in the following step handles.
(2) set up " grf " bridge joint file:
With a collection TV play video " fierce fighting south of the River 05.mpg " of gathering is that example is set forth.Here at first to use the filter debugging routine " graphedt " in the windows system; This program can be used for all appearing " DirectShow " passage with manual calling system; Use this passage can organically combine by the audio frequency and video separator of installing in the system, audio/video decoder and audio frequency and video renderer, be actually be stored as one after artificially manually connecting in the middle of bridge joint file " .grf ".Here we have set up " fierce fighting south of the River 05.Grf " file for standby for the good video of above collection.
Fig. 2 shows the concrete example of setting up the grf file.
Use therein audio frequency and video separator is " halli media splitter "; Audio/video decoder is " ffdshow " decoding bag; Separator separates goes out audio frequency and video and gives the decoder output of decoding; See that " out " output pin mouth has no thing at the back, representes that we will obtain decoded raw image data and give following a series of Video processing work.
(3) set up the avs file
Write avs code script; In the avs file, call the grf file; In the avs file, write and cut the black surround parameter and adjust the pseudo-details reinforcement of picture pixel optimization plug-in unit parameter; Rise to the 720p specification: we can use avs commonly used in the video coding to realize a series of cutting edge, work such as image quality optimization and resolution lifting here.But be writing and debugging of some codes and script, real coding work will give last video encoder to realize.Be the avs code script file Reencoder.avs (annotate: following script has been to have write the cutting edge parameter, and the compensation of image quality dummy pixel promotes image quality and promotes the script argument of resolution to 720p) that example writes to set up " fierce fighting south of the River 05.Grf " in " fierce fighting south of the River 05.mpg " last step below
This Reencoder.avs file of finishing writing is pulled in the preview software " VirtualDubMod " into the picture that can be real-time observe obtains later through a series of processing and without the contrast of the source dvd picture of any processing.
Thereby the just source video of 4: 3 ratios of a common dvd 480p that uses can be dismissed black surround accurately through all kinds of pin functions of avs, and through the pixel compensation pin function, when promoting resolution, image quality has been done optimization process.
Fig. 3 A, Fig. 3 B have shown the video pictures that obtains in the prior art respectively and have utilized scheme of the present invention to obtain the optimization of video picture, can find that through contrast scheme of the present invention can obtain the better picture of visual effect.
This group code in the Avs file has been realized being written into video through system's DirectShow passage, and " fierce fighting south of the River 05.Grf " file: the DirectShowSource that has made before promptly in avs, having called (" fierce fighting south of the River 05.GRF ", audio=false).
This group code in the AVS file has realized that accurate sanction removes the function of black surround: crop (10,64,700,350)
Several groups of codes of in the AVS file this have loaded picture pixel and have optimized plug-in unit:
LoadPlugin(″C:\RemoveGrain.dll″)
LoadPlugin(″C:\rnt_masktools.dll″)
LoadPlugin(″C:\warpsharp.dll″)
Import(″LimitedSharpenFaster.avs″)
This group code in the AVS file has been realized defining the optimal compensating of the x axle of picture dummy pixel and y axle is strong and weak, and promotes original 480p video simultaneously to the 720p rank:
LimitedSharpenFaster(dest_x＝1280，dest_y＝720，ss_x＝1.7，ss_y＝1.9，Smode＝3，strength＝85)
(4) use the encoder x264 that meets the H264/AVC standard to carry out the video recodification and obtain final 720p video
Process work before all is ready to complete, and this link is carried out final video coding to the source video, exports final 16: 9, the 720p finished product video file after through the image quality optimization process.Popularize at present popular and compression performance is best no more than the H264/AVC coding criterion.Select that to have developed the AVC encoder x264 that increases income more than 6 years be optimal selection for use; It is adjustable to have numerous careful controllable parameters; Compression ratio all is even better with final image quality, and the freeware of still increasing income, a bit sony specialty h264/avc encoding software no less than price more than 10 ten thousand U.S. dollars.At present also by the integrated use of numerous encoding platforms, such as: meidacoder, Mencoder, the video coding platform that megui or the like is well-known.Can select for use these platforms to select x264 encoder encode (but the adjustment of numerous parameters is not easily or a lot of parameters and bad regulation and control are arranged) before being written into behind the ready-made avs script file; Move coding work after also can be directly using the capable Run Script encoding function of autocommand of x264 to customize numerous parameters voluntarily separately, the latter that we adopt: the order line automatic script is written into avs document No. mechanism works.
The 2pass VBR coding that adopts, parameters setting is enriched complete, and the quantitative analysis result of pair coding quality is all arranged after 1-2pass has encoded, and can adjust parameter according to these results and reach better coding quality.
The configuration of VBR 2PASS coding parameter:
″c:\Program?Files\x264_r1924_git.exe″--pass?1--bitrate?4000--stats
" x264-encoder outcast secret temp.stats "--level 4.1--ref 1--bframes
6--direct?auto--b-adapt?1--weightp?0--subme?1--qcomp?0.7--ratetol?1.0
--me?dia--trellis?0--b-pyramid?normal--filter-2，-2--no-mbtree
--vbv-bufsize?30000?--vbv-maxrate?30000?--merange?16?--partitions?none
--threads 8?--aq-strength?0.6?--thread-input --output NUL
" x264-encoder outcast secret outcast secret 03.avs "
″c:\Program?Files\x264_r1924_git.exe″--pass?2--bitrate?4000--stats
" x264-encoder outcast secret temp.stats "--level 4.1--ref 4--bframes
6?--mixed-refs?--no-fast-pskip?--weightb?--weightp?0?--qcomp?0.7?--ratetol
1.0?--b-pyramid?normal?--direct?auto?--filter-2，-2?--subme?8?--trellis?1
--partitions?p8x8，b8x8，i4x4，i8x8--8x8dct--chroma-qp-offset?1--me?umh
--merange?16?--no-mbtree?--vbv-bufsize?30000?--vbv-maxrate?30000
--threads 8--aq-strength 0.6--thread-input--output " x264-encoder outcast secret outcast secret 03-re.264 " " x264-encoder outcast secret outcast secret 03.avs "--no-psy
In the processing procedure of this part, can as required the resolution of file destination be adjusted, such as be set at 1080p or more than.
(2) Audio Processing part
Generally do not process, directly extraction source dvd audio frequency is subsequent use, and the source audio frequency is generally ac3 or mp2.It is subsequent use perhaps to be transcoded into aac 192k dual-channel audio.Former dvd sound intermediate frequency is encoded into AAC can adopts Nero AAC Encoder, the AAC audio coding in faac Encoder or the FFMPEG project is partly encoded.
Obtain the article audio-video document that video files all is packaged into forms such as mkv, mp4 in audio file and (1) part.
(3) part made in captions
Because when black surround carried out cutting up and down with 4: 3 source video of dvd, the hard captions under being in the video of source in the black surround also can be dismissed thereupon, this is inevitable.So be necessary to make again the soft captions of SRT, handle the audio frequency and video make with " high definition widescreenization " and together called transcoding by transcoding server on the line with plug-in mode, soft captions have been coded in during transcoding the lower position of video on the line.
The dvd source contrast video that use gathers out carries out the making of the soft captions of SRT received text.The soft captions of this SRT text are beneficial to editor and error correction again, can be encapsulated in the mkv Container Format with audio frequency and video, also can well show with the broadcast of putting together of a kind of plug-in form and audio-video document.
The making of captions is divided into 3 parts, and the work in these 3 stages all uses same software PopSub just can accomplish.
1. typing captions stage:
Use the hard captions in the source that contrasting that to open source dvd real-time video in the PopSub software to carry out typing.Like this can be very accurate typing captions, but it's a pity do not have better scheme can replace this manual typing mode at present.The hard subtitle recognition technology of some videos all can only have the accuracy about 20%, so can only keep the mode of manual typing at present.This also is the link of time-consuming and manpower in the whole making flow process.
2. set up the captions time shaft stage:
When a complete captions dialogue part after all typings are accomplished, foundation and the adjustment of captions time shaft just can have been carried out.Fast behind the record time point, every captions are accomplished last time shaft all according to this method foundation respectively for the same PopSub software that uses, the time point that occurs according to captions dialogue in the sheet of source and the time point of cancellation.
It is relatively quick to set up the captions time shaft, and the staff is swift in response, and faster just passable.Just can save as the soft subtitle file of a SRT form after the foundation of deadline axle.
3. the stage examined in the finished product captions:
The finished product captions of accomplishing just can use after must passing through secondary audit and error correction.Might be in the typing captions stage because artificial reason cause mistakes such as wrongly written character, hiatus, these minor errors all can obtain correcting and solving in the finished product secondary audit in the end.Utilize present arbitrary money video player broadcast source dvd video and be written into the SRT subtitle file of making simultaneously, just can show the soft captions of SRT of hard captions and the making of source dvd simultaneously.Open PopSub software simultaneously, be written into the soft captions of SRT.State and PopSub that the device that on system desktop, displays the play is simultaneously play are written into the captions state.The auditor appears in the player picture through captions in the SRT captions made and the source dvd video synchronously, is easy to comparison check, also is easy to locate errors, and in the PopSub of another side software, has revised the mistake place synchronously.
(4) part is uploaded in the encapsulation packing
More than three steps obtained video, audio frequency, captions respectively.This step only needs simply the audio frequency and video packing is encapsulated in the mp4 container, and perhaps the mkv container perhaps get final product in the mov container, makes according to standard behind the xml file of correspondence together to be uploaded on the line transcoding server transcoding with the soft captions of SRT and to reach the standard grade and broadcasted.
Encapsulation is packaged into mp4, mkv can use MP4box, Mkvtoolnix.
The direct benefit of technical scheme of the present invention is exactly under limited basic bandwidth condition, has promoted the Online Video image quality to greatest extent, makes full use of to popularize popular 16: 9 widescreen display devices at present, brings the user best vision viewing experience.And this The Application of Technology is that certain basis has been laid in the high Qinghua development from now on of Online Video broadcast industry, has also laid certain video deposit basis for the developing goal of company's " unification of three nets ".
Claims (12)
1. method that realizes video high definition widescreenization comprises:
(1) gathers dvd source video;
(2) set up " grf " video decode bridge joint file;
(3) set up the avs project file, call the grf file in the avs file;
(4) use encoder to carry out the video that the video recodification obtains final high definition widescreenization.
2. method according to claim 1, wherein step (1) specifically comprises: former video is TV play, with TV play with the form of a file of each collection harmless from dvd, gather after, audio frequency and video are packaged into mkv or vob or mpg video format.
3. method according to claim 1; Wherein step (2) specifically comprises: set up and storage " grf " video decode bridge joint file; Use therein audio frequency and video separator is " halli media splitter "; Audio/video decoder is " ffdshow " decoding bag, and said separator separates goes out audio frequency and video and gives the output of decoding of said decoder, gives Video processing work afterwards with obtaining decoded raw image data.
4. method according to claim 1; Wherein step (3) specifically comprises: set up the avs file; Call the grf file in the avs file, in the avs file, write and cut the black surround parameter and adjust the pseudo-details of picture pixel and strengthen and optimize the plug-in unit parameter, picture is risen to the above specification of 720p.
5. method according to claim 4 wherein rises to the 1080p specification with picture.
6. method according to claim 1; Wherein step (4) specifically comprises: use the encoder x264 that meets the H264/AVC standard to carry out video and recode; Be written into the avs plug-in code file of finishing writing in the step 3 and carry out the video recodification, obtaining final ratio is the finished product video file after the process image quality optimization process 16: 9, that 720p is above.
7. device of realizing video high definition widescreenization comprises:
Collecting unit is used to gather dvd source video;
Bridge-jointing unit is set up " grf " video decode bridge joint file;
Temporary location is set up the middle project file of avs, calls the grf file in the avs file;
Coding unit uses encoder to carry out the video that the video recodification obtains final high definition widescreenization.
8. device according to claim 7; Wherein collecting unit is specifically accomplished following function: former video is TV play; With TV play with the form of a file of each collection harmless from dvd, gather after, audio frequency and video are packaged into mkv or vob or mpg video format.
9. device according to claim 7; Wherein bridge-jointing unit is specifically accomplished following function: set up and storage " grf " video decode bridge joint file; Use therein audio frequency and video separator is " halli media splitter "; Audio/video decoder is " ffdshow " decoding bag, and said separator separates goes out audio frequency and video and gives the output of decoding of said decoder, gives Video processing work afterwards with obtaining decoded raw image data.
10. device according to claim 7; Wherein temporary location is specifically accomplished following function: set up the avs file; Call the grf file in the avs file; In the avs file, write and cut the black surround parameter and adjust the pseudo-details of picture pixel and strengthen and optimize the plug-in unit parameter, picture is risen to the above specification of 720p.
11. device according to claim 10 wherein rises to the 1080p specification with picture.
12. device according to claim 7; Wherein coding unit is specifically accomplished following function: use the encoder x264 that meets the H264/AVC standard to carry out video and recode; Be written into the avs plug-in code file of finishing writing in the temporary location and carry out the video recodification, obtaining final ratio is the finished product video file after the process image quality optimization process 16: 9, that 720p is above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101339818A CN102647614A (en) | 2012-05-02 | 2012-05-02 | Method and device for achieving video high definition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101339818A CN102647614A (en) | 2012-05-02 | 2012-05-02 | Method and device for achieving video high definition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102647614A true CN102647614A (en) | 2012-08-22 |
Family
ID=46660157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101339818A Pending CN102647614A (en) | 2012-05-02 | 2012-05-02 | Method and device for achieving video high definition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102647614A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105744357A (en) * | 2016-02-29 | 2016-07-06 | 哈尔滨超凡视觉科技有限公司 | Method for reducing network video bandwidth occupation based on online resolution improvement |
| CN110418162A (en) * | 2019-08-20 | 2019-11-05 | 成都索贝数码科技股份有限公司 | A kind of method of short-sighted frequency that is while making different breadth ratios |
| CN113965813A (en) * | 2021-10-21 | 2022-01-21 | 广州方硅信息技术有限公司 | Video playing method and system in live broadcast room and computer equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1460368A (en) * | 2001-03-30 | 2003-12-03 | 皇家菲利浦电子有限公司 | Scalable resolution enhancement of video image |
| CN1689322A (en) * | 2002-10-11 | 2005-10-26 | 皇家飞利浦电子股份有限公司 | A unit for and method of image conversion |
| CN101090472A (en) * | 2007-07-20 | 2007-12-19 | 北京华纬讯电信技术有限公司 | Method for raising high clear video image quality using image amplification process |
| CN101399975A (en) * | 2007-09-27 | 2009-04-01 | 松下电器产业株式会社 | Video/audio output apparatus |
-
2012
- 2012-05-02 CN CN2012101339818A patent/CN102647614A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1460368A (en) * | 2001-03-30 | 2003-12-03 | 皇家菲利浦电子有限公司 | Scalable resolution enhancement of video image |
| CN1689322A (en) * | 2002-10-11 | 2005-10-26 | 皇家飞利浦电子股份有限公司 | A unit for and method of image conversion |
| CN101090472A (en) * | 2007-07-20 | 2007-12-19 | 北京华纬讯电信技术有限公司 | Method for raising high clear video image quality using image amplification process |
| CN101399975A (en) * | 2007-09-27 | 2009-04-01 | 松下电器产业株式会社 | Video/audio output apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 真红: "教程：用AVS+MediaCoder联合压制高清视频", 《科技资讯网》, 13 March 2010 (2010-03-13) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105744357A (en) * | 2016-02-29 | 2016-07-06 | 哈尔滨超凡视觉科技有限公司 | Method for reducing network video bandwidth occupation based on online resolution improvement |
| CN110418162A (en) * | 2019-08-20 | 2019-11-05 | 成都索贝数码科技股份有限公司 | A kind of method of short-sighted frequency that is while making different breadth ratios |
| CN113965813A (en) * | 2021-10-21 | 2022-01-21 | 广州方硅信息技术有限公司 | Video playing method and system in live broadcast room and computer equipment |
| CN113965813B (en) * | 2021-10-21 | 2024-04-23 | 广州方硅信息技术有限公司 | Video playing method, system, equipment and medium in live broadcasting room |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100382577C (en) | Method and apparatus for analyzing subtitles in a video | |
| CN102577366B (en) | For distributing the system and method for the auxiliary data be embedded in video data | |
| CN102026017B (en) | Efficient test method for video decoding | |
| CN103907343B (en) | method and system for video equalization | |
| TW448691B (en) | Analog video tagging and encoding system | |
| CN105657524A (en) | Seamless video switching method | |
| CN1997153B (en) | A method and device for computer multi-video playing | |
| US20120201290A1 (en) | Method and system for media file compression | |
| CN107888953A (en) | A kind of implementation method of new live broadcast system | |
| KR20170128223A (en) | A system for distributing metadata embedded in video | |
| CN102088631B (en) | Live and demand broadcast method of digital television (TV) programs as well as related device and system | |
| US20140111688A1 (en) | Method and apparatus for processing and displaying multiple captions superimposed on video images | |
| US20100214485A1 (en) | Method and apparatus for displaying data content | |
| CN104902164A (en) | Image processing apparatus, image processing method and image processing system | |
| Catellier et al. | Impact of mobile devices and usage location on perceived multimedia quality | |
| CN105872755A (en) | Video playing method and device | |
| CN106792155A (en) | A kind of method and device of the net cast of multiple video strems | |
| US20170048533A1 (en) | Video transcoding method and device | |
| CN105704508A (en) | Video merging method and device | |
| CN102647614A (en) | Method and device for achieving video high definition | |
| CN102929654A (en) | Method for playing embedded videos in game | |
| CN106027944B (en) | The working method of ultra high-definition digital television receiver | |
| WO2009075528A2 (en) | Digital broadcasting receiver and a data processing method | |
| CN110312158A (en) | A kind of monitoring method and device of embedded more pictures | |
| CN118381782A (en) | Method, system, equipment and medium for fusing multimedia streams |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120822 |