CN101193235A - Size adjusting method containing subtitle image and digital tv - Google Patents
Size adjusting method containing subtitle image and digital tv Download PDFInfo
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- CN101193235A CN101193235A CNA2007101968217A CN200710196821A CN101193235A CN 101193235 A CN101193235 A CN 101193235A CN A2007101968217 A CNA2007101968217 A CN A2007101968217A CN 200710196821 A CN200710196821 A CN 200710196821A CN 101193235 A CN101193235 A CN 101193235A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
- H04N21/4314—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for fitting data in a restricted space on the screen, e.g. EPG data in a rectangular grid
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/488—Data services, e.g. news ticker
- H04N21/4884—Data services, e.g. news ticker for displaying subtitles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
- H04N7/0122—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal the input and the output signals having different aspect ratios
Abstract
The invention relates to a subtitle containing image size regulating method and a digital television set thereof. The digital television set comprises: a decoding region for decoding input TV signals and outer input signals to image pictures, and detecting that the input signals are normal size signals or 16:9 sized signals; a subtitle detecting region for detecting whether there are subtitles formed on pictures; a control region for enlarging pictures according to black lines amount if black lines on the upper and lower parts of the pictures are detected, and displaying image pictures containing subtitling positions when subtitles are detected. According to the invention, even 16:9 sized images are displayed on a 4:3 sized television picture, image size can be adjusted based on the whole picture size to avoid black lines on the upper and lower pars on the pictures, and subtitles can be detected and prevented from being cut off even the images are enlarged to the whole picture.
Description
Technical field
The present invention is the digital television related invention, especially relates to big or small image size adjusting method that contains captions and digital television { the MethodforarrangementscreensizehavingsubtitleandDigitalTV thereof} thereof of television image demonstration rate regulation image output that a kind of basis contains the image of captions.
Background technology
As everyone knows, digital TV broadcasts, and is meant that broadcaster sends over the broadcast singal of exporting with analog signal form with the digital signal form.Use ' image compress technique ', pass on more information with the frequency of same widths, therefore can pass on the high image quality image that reaches 3~6 times in original TV and the sound equipment of film level, channel number also will have more 3~6 times.The image compliant compression whole world among the digital TV all adopts Moving Picture Experts Group-2.
Spectators need set-top box (conversion equipment) or new digital TV in order to watch digital TV broadcasting.
Digital TV roughly be divided into can on the wide screen of 16:9, embody ' home theater ' system ' the digital TV ' of high image quality (HD) is though and can accept digital program, unfavorable ' the digital TV ' of standard (SD) of image quality and tonequality.The digital TV broadcasting of China advances the usefulness for HDTV.
Along with the development of number broadcasting, what show in broadcast singal and the DVD title (Title) is the image that is fit to the 16:9 picture, therefore in the general television image of 4:3, the top and the bottom of demonstration have blank (below, be called the black line.) picture.
As shown in Figure 1, when this traditional digital television showed the image of 16:9 size on the television image of general 4:3 size, existence can not show the image that is fit to the television image size, can only watch the problem that occurs the picture of black line in the top and the bottom of picture.
And when being fit to the size of picture, amplifying to show corresponding image, as shown in Figure 2, exist the captions that are presented at image and black line to be blocked, can not read the problem of captions.
Summary of the invention
In order to solve above-mentioned traditional variety of issue, the object of the present invention is to provide: even when on the television image of general 4:3 size, showing the image of 16:9 size, according to whole picture size adjustment image size, prevent to occur the image size adjusting method and the digital television thereof that contain captions of black line in the top and the bottom of picture.
Another purpose of the present invention is to provide a kind of and regulates image by detecting captions, even image is amplified when being shown to whole image, also can prevent intercepted image size adjusting method and the digital television thereof that contains captions of captions.
For achieving the above object, the present invention is achieved by the following technical solutions:
A kind of digital television is characterized in that comprising: behind input TV signal and the external input signal it is decoded to image frame, detects the lsb decoder that above-mentioned input signal is general picture dimension or 16:9 signal; Detection is formed on the several black line test section of black line (BlackLine) of the top and the bottom of picture by the signal of above-mentioned input; By the signal of above-mentioned input, detect the captions test section that has or not the captions that are formed on the picture; If when detecting the black line in the top and the bottom of above-mentioned picture, amplify picture by above-mentioned black line quantity, show the control part of the image frame that comprises subtitle position when detecting captions.
Aforesaid digital television is characterized in that above-mentioned control part relatively up and down after the black line number, if its number is inequality, then is judged as and has captions.
Aforesaid digital television is characterized in that above-mentioned control part detects the mean flow rate (APL:AveragePictureLevel) of picture integral body, only reaches the certain ratio of overall brightness when above in the brightness that is detected, and just carries out above-mentioned picture enlarging function.
Aforesaid digital television is characterized in that comprising again: carrying out under the state of above-mentioned picture enlarging function, searching to get and be presented on the picture after being rolled to the position that the user wishes behind the captions, the user can adjust the picture rolling adjustment part of subtitle position arbitrarily.
For achieving the above object, the image size adjusting method that contains captions among the present invention, it is characterized in that comprising: behind input TV signal and the external input signal it is decoded to image frame, detects the stage that above-mentioned input signal is general picture dimension or 16:9 signal; By the signal of above-mentioned input, detect the stage of black line (BlackLine) number of the top and the bottom that are formed on picture; By the signal of above-mentioned input, detection has or not the stage that is formed on the captions on the picture; If when detecting the black line in the top and the bottom of above-mentioned picture, amplify picture by above-mentioned black line quantity, show the stage of the image frame that comprises subtitle position when detecting captions.
The aforesaid image size adjusting method that contains captions is characterized in that the stage of above-mentioned detection captions after the black line number, if its number is inequality, is then judged to have captions about relatively.
The aforesaid image size adjusting method that contains captions, after it is characterized in that detecting the mean flow rate (APL:AveragePictureLevel) of picture integral body, only reach the certain ratio of overall brightness when above, just carry out above-mentioned picture enlarging function in institute's sensed luminance.
The aforesaid image size adjusting method that contains captions is characterized in that carrying out under the state of above-mentioned picture enlarging function, searches to get captions rolling and be presented on the picture behind the position that the user wishes, makes the user can adjust subtitle position arbitrarily.
The invention has the beneficial effects as follows: according to size adjusting method and the digital television thereof that contains the image of captions of the present invention, even when on the television image of general 4:3 size, showing the image of 16:9 size, also can be according to whole picture size adjustment image size, have the top and the bottom that prevent at picture the black line takes place, and, detect captions and regulate the image size,, also can prevent the intercepted effect of captions even when image is amplified to whole image and shows with it.
Description of drawings
Fig. 1 is illustrated in the picture that shows the state of 16:9 image on traditional television image;
Fig. 2 will have captions 16:9 image to be amplified to the picture of the state of whole image demonstration for expression in the traditional tv picture;
Fig. 3 is for showing the square frame composition diagram of digital television of the present invention;
Fig. 4 is the control flow chart of the image size adjusting method that contains captions of digital television of the present invention;
Fig. 5 is illustrated in to the 16:9 image of captions to be arranged on the television image of the present invention, is amplified to the picture of the state of whole image demonstration.
Major part symbol description in the accompanying drawing
302: tuner 305: black line test section
306: captions test section 307: control part
308: video input part 309: the picture rolling adjustment part
314: video decode portion 317: video processor
320: display module
Embodiment
Below, specifically introduce most preferred embodiment of the present invention with reference to accompanying drawing.
Fig. 3 is for showing the square frame composition diagram of digital television of the present invention.
As shown in the figure, digital television of the present invention comprises: the control part 307 of controlling TV totally; The customer interface portion 304 of inputting user command; The antenna 301 of receiving broadcast signal; The broadcasting channel of watching is carried out tuning tuner 302; To carry out tuning digital broadcast signal (or transport stream: TransportStream) carry out the digital broadcast signal handling part 303 of signal processing by above-mentioned tuner 302; To be by the signal decomposition of above-mentioned digital broadcast signal handling part 303 outputs video flowing, data flow and comprise above-mentioned video with audio frequency and above-mentioned data with behind the audio stream of audio frequency, be converted to respectively and can listen or the broadcast singal efferent 310 of displayable video, audio frequency and data; Above-mentioned audible sound is carried out frequently the amplifier 318 of amplification with certain amplification degree; To be output as the loud speaker 319 of sub-audible sound by the audio frequency after the above-mentioned amplification of above-mentioned amplifier 318 outputs; And above-mentioned video that will be by 310 outputs of above-mentioned broadcast singal efferent and above-mentioned data are presented at the display module 320 on the picture.
Above-mentioned digital broadcast signal handling part 303 is made up of demodulator 303a and lsb decoder 303b, above-mentioned demodulator 303a carries out demodulation to the transport stream that above-mentioned tuner 302 provides, after being converted to audio stream, video flowing and data flow after the transport stream of above-mentioned lsb decoder 303b after to above-mentioned demodulation decoded, be provided to above-mentioned broadcast singal efferent 310.
Above-mentioned broadcast singal efferent 310 comprises: will decompose the demultplexer 311 that is output as above-mentioned audio stream, video flowing and data flow by the transport stream of above-mentioned digital broadcast signal handling part 303 outputs; To the audio decoder portion 312 of decoding by the above-mentioned audio stream of above-mentioned demultplexer 311 decomposition; Above-mentioned decoded audio signal is made into the above-mentioned video that can listen is used audio frequency with audio frequency and above-mentioned data audio process 315; To the data decoding part 313 of decoding by the above-mentioned data flow of above-mentioned demultplexer 311 decomposition; Above-mentioned decoded data creating is become the data processor 316 that above-mentioned user-selected above-mentioned display properties accordingly can data presented; To the video decode portion 314 of decoding by the above-mentioned video flowing of above-mentioned demultplexer 311 decomposition; Above-mentioned decoded vision signal is made into the video processor 317 of the video that can show.
And, also comprise video input part 308, black line test section 305, captions test section 306, picture rolling adjustment part 309.
Behind the TV signal and external input signal (Video, DVD signal) that video decode portion 314 accepts to import by above-mentioned tuner 302 and video input part 308, be converted into digital signal behind decomposition brightness and the color signal.And detecting input signal is general picture dimension or 16:9 signal.
Black line test section 305 detects black line (BlackLine) number of the top and the bottom that are formed on picture by being input to the signal of above-mentioned video decode portion 314.
Do not have image information in the black line of intercepted picture up and down, therefore can detect black signal up and down is several lines.That is: the signal that does not have image is counted (Count) to the signal that image is arranged after, identification black line number.When upper and lower line is arranged, provide signal to control part 307 after being identified as the intercepted signal in top and the bottom, amplify picture according to the quantity of black line.
The signal that captions are arranged is on the black line time, if be converted to one-piece pattern, then captions can be blocked and can not watch.
The method that detects captions is, after the black line number, is not 0 as if its difference relatively up and down, then is judged as to have captions.For example, upside black line number is made as a, downside black line number (black till the captions) is called b, a-b=0 when not having captions, a-b is not 0 when still captions being arranged.
And above-mentioned control part 307 has or not information according to the black line and the captions of above-mentioned black line test section 305 and 306 detections of above-mentioned captions test section, strengthens picture by corresponding black line number, when captions are arranged, picture is amplified to subtitle position.
Simultaneously, when being embodied in whole image, if the dark image of input then may be distinguished the shadow picture of black line signal.At this moment, detect picture ensemble average brightness (APL:AveragePictureLevel),, only can be set at and to carry out the total painting surface model at 1% of overall brightness when above and operate as an example.
And, can occur on picture, not continuing to show captions, but captions repeat the situation that the back disappears.At this moment, when detecting captions, be converted to other input patterns or, control picture is increased to the condition of closing under the condition of not opening behind the TV the initial position of detecting.Thus, can prevent in the process of show image the picture dimension frequent changes.
The video processor 317 thickness vision signal of will decoding is made into the video that can show.
And, after picture rolling adjustment part 309 is searched in the picture of adjusting by above-mentioned control part 307 and got captions, be presented on the position picture that the user wishes.As an example, integral body is watched when in the picture captions being arranged, and captions are presented at the lower side, and can in overall image move up and down picture by above-mentioned picture rolling adjustment part 309 this moment, and the user can adjust subtitle position arbitrarily thus.
Fig. 4 is the control flow chart of the image size adjusting method that contains captions of digital television of the present invention, and Fig. 5 is illustrated in to the 16:9 image of captions to be arranged on the television image of the present invention, is amplified to the picture of the state of whole image demonstration.
At first, the 302 pairs of broadcasting channels that will watch of tuner carry out tuning, and video input part 308 input external input signals (Video, DVD signal) are as the S101 stage among the figure.
Video decode portion 314 accepts TV signal and the external input signal (Video, DVD signal) by above-mentioned tuner 302 and 308 inputs of video input part, is converted into digital signal behind decomposition brightness and the color signal.And detecting input signal is general picture dimension or 16:9 signal, as the S102 stage among the figure.
Afterwards, black line test section 305 detects black line (B1ackLine) number of the top and the bottom that are formed on picture, as the S103 stage among the figure by being input to the signal of above-mentioned video decode portion 314.
That is, the signal that does not have image counted (Count) to the signal that image is arranged after, identification black line number.At this moment, do not have information in the black line of intercepted picture up and down, therefore can detect black signal up and down is several lines.
When upper and lower line is arranged, provide signal to control part 307 after being identified as the intercepted signal in top and the bottom, amplify picture according to the quantity of black line; When not having upper and lower line, directly show input signal, as the S110 stage among the figure.
The signal that captions are arranged is on the black line time, if be converted to one-piece pattern, then captions can be blocked and can not watch (with reference to Fig. 2).
The method that detects captions is: relatively up and down after the black line number, if its difference is not O, then is judged as and has captions.For example, upside black line number is made as a, downside black line number (black till the captions) is called b, a-b=0 when not having captions, a-b is not O when still captions being arranged.
And when not having captions in the middle of the image, that is, conversion input pattern or power supply are altered to when opening from closing, and directly show input signal, as S109, S110 stage among the figure.
Afterwards, above-mentioned control part 307 has or not information according to the black line and the captions of above-mentioned black line test section 305 and 306 detections of above-mentioned captions test section, strengthens picture by corresponding black line number, when captions are arranged, picture is amplified to subtitle position, as the S108 stage among the figure.
Simultaneously, when being embodied in whole image, if the dark image of input then may be distinguished the shadow picture of black line signal.At this moment, detect picture ensemble average brightness (APL:AveragePictureLevel),, only can be set at and to carry out the total painting surface model at 1% of overall brightness when above and operate, as S104, S105 stage among the figure as an example.
And, can occur on picture, not continuing to show captions, but captions repeat the situation that the back disappears.At this moment, when detecting captions, be converted to other input patterns or control picture is increased to the condition of closing under the condition of not opening behind the TV the initial position of detecting.Thus, can prevent in the process of show image the picture dimension frequent changes.
And, after picture rolling adjustment part 309 is searched in the picture of adjusting by above-mentioned control part 307 and is got captions, on the picture of explicit user desired location.As an example, integral body is watched when in the picture captions being arranged, and captions are presented at the lower side, and can in overall image move up and down picture by above-mentioned picture rolling adjustment part 309 this moment, and the user can adjust subtitle position arbitrarily thus, as S106 among the figure~S107 stage.
Afterwards, video processor 317 is made into the video that can show with decoded vision signal, and display module (320) shows the video by above-mentioned video processor 317 outputs on picture.
Thus, as shown in Figure 5, even the 16:9 image that captions are arranged in the television image is shown enlarged under the state of whole image, captions are not blocked yet, normally show image.
Above-described the present invention obviously can be applied in panel display apparatus such as PDP and LCD, and can be applied on set-top box, rear-projection TV, general T V, display and other image apparatus, equally also can be applied in analog TV, digital TV and satellite TV.Certainly, can be applied in all NTSC, PAL, SECAM mode.
More than; most preferred embodiment of the present invention is illustrated and introduces; but the invention is not restricted to above-mentioned example; under the prerequisite that does not break away from main idea of the present invention; so long as possess the personnel of the rudimentary knowledge in the affiliated field of the present invention; just can carry out numerous variations, the form of implementation of this change or change all drops in protection scope of the present invention.
Claims (8)
1. digital television is characterized in that comprising: behind input TV signal and the external input signal it is decoded to image frame, detects the lsb decoder that above-mentioned input signal is general picture dimension or 16:9 signal; The signal of detection by above-mentioned input is formed on the black line test section of black line number of the top and the bottom of picture; By the signal of above-mentioned input, detect the captions test section that has or not the captions that are formed on the picture; If when detecting the black line in the top and the bottom of above-mentioned picture, amplify picture by above-mentioned black line quantity, show the control part of the image frame that comprises subtitle position when detecting captions.
2. digital television according to claim 1 is characterized in that above-mentioned control part relatively up and down after the black line number, if its number is inequality, then is judged as and has captions.
3. digital television according to claim 1 is characterized in that above-mentioned control part detects the mean flow rate of picture integral body, only reaches the certain ratio of overall brightness when above in the brightness that is detected, and just carries out above-mentioned picture enlarging function.
4. digital television according to claim 1, it is characterized in that comprising again: under the state of carrying out above-mentioned picture enlarging function, search to get and be presented on the picture after being rolled to the position that the user wishes behind the captions, the user can adjust the picture rolling adjustment part of subtitle position arbitrarily.
5. contain the image size adjusting method of captions, it is characterized in that comprising: behind input TV signal and the external input signal it is decoded to image frame, detects the stage that above-mentioned input signal is general picture dimension or 16:9 signal; By the signal of above-mentioned input, detect the stage of the black line number of the top and the bottom that are formed on picture; By the signal of above-mentioned input, detection has or not the stage that is formed on the captions on the picture; If when detecting the black line in the top and the bottom of above-mentioned picture, amplify picture by above-mentioned black line quantity, show the stage of the image frame that comprises subtitle position when detecting captions.
6. the image size adjusting method that contains captions according to claim 5 is characterized in that the stage of above-mentioned detection captions after the black line number, if its number is inequality, is then judged to have captions about relatively.
7. the image size adjusting method that contains captions according to claim 5 after it is characterized in that detecting the mean flow rate of picture integral body, only reaches the certain ratio of overall brightness when above in institute's sensed luminance, just carries out above-mentioned picture enlarging function.
8. the image size adjusting method that contains captions according to claim 5, it is characterized in that under the state of carrying out above-mentioned picture enlarging function, search and get captions rolling and behind the position that the user wishes, be presented on the picture, make the user can adjust subtitle position arbitrarily.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070073625A KR20090010494A (en) | 2007-07-23 | 2007-07-23 | Method for arrangement screen size having subtitle and digital tv thereof |
KR1020070073625 | 2007-07-23 |
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CN101193235A true CN101193235A (en) | 2008-06-04 |
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CNA2007101968217A Pending CN101193235A (en) | 2007-07-23 | 2007-12-05 | Size adjusting method containing subtitle image and digital tv |
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CN (1) | CN101193235A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010124599A1 (en) * | 2009-04-30 | 2010-11-04 | 华为终端有限公司 | Image conversion method, conversion device and display system |
CN102088571B (en) * | 2009-12-07 | 2012-11-21 | 联想(北京)有限公司 | Caption displaying method and terminal equipment |
CN102892039A (en) * | 2012-06-29 | 2013-01-23 | 广东九联科技股份有限公司 | Subtitle amplifying method based on set top box |
CN108476341A (en) * | 2016-01-26 | 2018-08-31 | 索尼公司 | Receiving device, method of reseptance and sending device |
CN110381353A (en) * | 2019-07-30 | 2019-10-25 | 北京达佳互联信息技术有限公司 | Video scaling method, apparatus, server-side, client and storage medium |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP2525568B1 (en) | 2011-05-19 | 2017-11-15 | EchoStar Technologies L.L.C. | Automatic subtitle resizing |
-
2007
- 2007-07-23 KR KR1020070073625A patent/KR20090010494A/en not_active Application Discontinuation
- 2007-12-05 CN CNA2007101968217A patent/CN101193235A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010124599A1 (en) * | 2009-04-30 | 2010-11-04 | 华为终端有限公司 | Image conversion method, conversion device and display system |
US8503823B2 (en) | 2009-04-30 | 2013-08-06 | Huawei Device Co., Ltd. | Method, device and display system for converting an image according to detected word areas |
CN102088571B (en) * | 2009-12-07 | 2012-11-21 | 联想(北京)有限公司 | Caption displaying method and terminal equipment |
CN102892039A (en) * | 2012-06-29 | 2013-01-23 | 广东九联科技股份有限公司 | Subtitle amplifying method based on set top box |
CN108476341A (en) * | 2016-01-26 | 2018-08-31 | 索尼公司 | Receiving device, method of reseptance and sending device |
CN108476341B (en) * | 2016-01-26 | 2021-06-25 | 索尼公司 | Receiving apparatus, receiving method, and transmitting apparatus |
CN110381353A (en) * | 2019-07-30 | 2019-10-25 | 北京达佳互联信息技术有限公司 | Video scaling method, apparatus, server-side, client and storage medium |
CN110381353B (en) * | 2019-07-30 | 2022-08-23 | 北京达佳互联信息技术有限公司 | Video scaling method, device, server, client and storage medium |
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