CN1819643A - Picture and accompanying sound cutting method and use for digital TV-set - Google Patents
Picture and accompanying sound cutting method and use for digital TV-set Download PDFInfo
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- CN1819643A CN1819643A CNA2006100498582A CN200610049858A CN1819643A CN 1819643 A CN1819643 A CN 1819643A CN A2006100498582 A CNA2006100498582 A CN A2006100498582A CN 200610049858 A CN200610049858 A CN 200610049858A CN 1819643 A CN1819643 A CN 1819643A
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Abstract
An interception method of the digital TV picture and the accompaniment, the character consist the following step: reading directly at least one intact image data of the SDRAM memory that storage MPEG-2 decode result briefly in the digital TV or the top-box of the digital TV, progress coding and compress process according to the digital bitmap file format, save the processed image data at the appointed data space by file format, at the same time, get the data of the data PCM coding audio flow that output from the MPEG-2 coding CMOS chip of the digital TV or the top-box of the digital TV, and transform to the data audio file according to the PCM format, the file is written into the data space for saving. Comparing with the existing technology, the invention can use for the digital TV or the top-box of the digital TV, make the best of the advantage that the lossless of the digital TV transmit signal, intercept the resting image and the dynamic accompaniment, and carry to the user appointed email-box or mobile phone by the network and the special data server.
Description
Technical field
The present invention relates to the application of Digital Television, particularly the intercept method of a kind of picture of Digital Television, sound accompaniment and application thereof.
Background technology
The Digital Television industry is considered to one of the most wide industry of 21 century development prospect, and the whole world has begun to carry out the action that large-scale analog television broadcast is converted to digital television broadcasting at present, and China also begins to accelerate the digitlization process of television broadcasting.
Digital Television has the characteristics of picture high definition, sound accompaniment high-fidelity, sound accompaniments such as pictures such as wherein beautiful landscape, star's graceful bearing or concert, theme song, the user has value for preservation, but present accepting device, no matter be the digital television of directly accepting digital television signal, still accept digital television signal and be converted to the set-top box of anolog TV signals, all can't picture, the sound accompaniment of Digital Television be intercepted.
On the other hand, the social owning amount of China's traditional analog television machine is 3.3 hundred million at present, these television sets are direct receiving digital television signal all, must just can receive digital television signal by the conversion of digital TV set-top box, according to the estimation of extending the deadline most, be 10 years the service life of a television set, break anolog TV signals fully if then mean in future 10～15 years, then will need 3～400,000,000 digital TV set-top box, this is a great consumption market, and the function ratio of existing digital TV set-top box is more single, offer general television set shows except digital signal being converted to analog signal, do not given play to the unique advantage after the TV programme digitlization fully.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of picture of Digital Television, the intercept method of sound accompaniment at above-mentioned prior art present situation.
The further technical problem to be solved of the present invention is how above-mentioned intercept method to be able to specific implementation in digital TV set-top box.
The further again technical problem to be solved of the present invention provides a kind of above-mentioned intercept method and the formed application network of digital TV set-top box system thereof of utilizing.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: the picture of this Digital Television, the intercept method of sound accompaniment is: directly read the complete view data of at least one frame that is used in digital television or the digital TV set-top box in the sdram memory of temporary MPEG-2 decoded result, and encode and compress processing according to the digital bitmap file format, view data after handling is saved in the specific data space with file format, simultaneously, obtain data in the digital pcm coded audio stream of the MPEG-2 decoding chip output from digital television or digital TV set-top box, and be digital audio file according to the PCM format conversion, this document also writes in the specific data space and is preserved.
Described specific data space can be provided by specific SDRAM or FLASH or EEPROM, also can be provided by original SDRAM or FLASH or EEPROM in digital television or the digital TV set-top box.
According to said method, have the picture that can intercept Digital Television, the digital TV set-top box of sound accompaniment data can include:
Central processing unit (CPU);
The MPEG-2 decoding chip is used for MPEG-2 data flow in the decoded digital TV signal;
Be used to handle the sdram memory of picture decoding, be used for temporary by the decoded view data of MPEG-2 decoding chip;
It is characterized in that also including:
SDRAM or FLASH or EEPROM, be used for storing from the described sdram memory that is used for handling picture decoding and read the file that converted to after the image frame data and from the digital pcm coded audio of MPEG-2 decoding chip output flows, obtain the digital audio file that is converted to behind the digital audio-frequency data in central processing unit (CPU) control down.
Can directly be provided with the intercepting button of a special use on the described digital TV set-top box, described central processing unit (CPU) starts when detecting this intercepting button and being pressed the picture of Digital Television, the intercepting and the storage of sound accompaniment data; For more convenient user's traditional habit, also this intercepting button can be arranged on the matching used remote controller of digital TV set-top box on.
For the ease of transmitting picture, the sound accompaniment data of the Digital Television that is truncated to, described digital TV set-top box can also have network interface and network service assembly thereof.
Utilize described the have picture that can intercept Digital Television, the digital TV set-top box of sound accompaniment data function, can set up a complete application network system, include:
Have the picture that can intercept Digital Television, the digital TV set-top box of sound accompaniment data;
The exclusive data server is used for communicating by network and at least one described digital TV set-top box, receives, keeps in and distribute picture, the sound accompaniment data of the Digital Television that has been truncated to.
Described data server can also be connected communication with mobile telephone network, thereby the picture of the Digital Television that will be truncated to, sound accompaniment data directly are sent on specific user's the mobile phone by mobile telephone network.
Compared with prior art, the inventive method can be expanded the application of Digital Television or digital TV set-top box, make full use of the advantage of digital television transfer signal lossless, the rest image and the dynamic sound accompaniment of playing in the TV programme intercepted, and by network and exclusive data server thereof, be sent to the E-mail address of user's appointment fast, other equipment of mobile phone, utilize the present invention, carry out wired simulated television in the cable digital TV transfer process in operator, if give and be equipped with the band image in the user family, sound intercepts the digital TV set-top box of function immediately, and be connected to this set-top box on the internet by the broadband network in the family, operator is setting up the real-time reception that is used for view data on the internet simultaneously, the server of distribution, if then the user sees the picture of oneself liking in watching the digital television program process, can be by triggering the camera function button on the remote controller, can fast this picture be preserved, and can be sent on own or friend's the mobile phone, perhaps preserve for a long time in the E-mail address, this interactively application model can greatly excite the interest of user to televiewing, can't on traditional analog television, realize owing to this function simultaneously, also can directly increase the attraction of Digital Television the user.Therefore, the present invention has great economic worth.
Description of drawings
Fig. 1 is the schematic flow sheet of the inventive method embodiment.
Fig. 2 is the Application Example of the present invention on digital TV set-top box.
Fig. 3 is the software flow pattern that relates to picture, sound accompaniment intercepting part in embodiment illustrated in fig. 2.
Fig. 4 for have the picture that can intercept Digital Television, the digital TV set-top box of sound accompaniment data function is set up into an application network system embodiment.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, be an idiographic flow of the intercept method of the picture of Digital Television, sound accompaniment:
Image interception: directly read the view data that is used in digital television or the digital TV set-top box in the sdram memory of temporary MPEG-2 decoded result, until reading complete frame data, then the data that read are carried out permutation and combination according to bitmap format, compress in data bitmap format, data after the compression are saved in the specific data space with file format, promptly finish image interception;
Sound accompaniment intercepting: image data in the digital pcm coded audio stream of the MPEG-2 decoding chip output from digital television or digital TV set-top box, gather end signal or reach maximum acquisition time until arriving, then according to PCM format organization data, again PCM format stream data are compressed and be converted into digital audio file, this digital audio file is also write in the specific data space, promptly finish the sound accompaniment intercepting.
Described specific data space can be provided by specific SDRAM or FLASH or EEPROM, also can be provided by original SDRAM or FLASH or EEPROM in digital television or the digital TV set-top box.
As shown in Figure 2, be one and have the picture that can intercept Digital Television, the digital TV set-top box of sound accompaniment data function that it includes:
Central processing unit (CPU);
The MPEG-2 decoding chip is used for MPEG-2 data flow in the decoded digital TV signal;
Be used to handle the sdram memory of picture decoding, be used for temporary by the decoded view data of MPEG-2 decoding chip;
SDRAM or FLASH or EEPROM, be used for storing from the described sdram memory that is used for handling picture decoding and read the file that converted to after the image frame data and from the digital pcm coded audio of MPEG-2 decoding chip output flows, obtain the digital audio file that is converted to behind the digital audio-frequency data in central processing unit (CPU) control down;
And digital tuner, digital television signal demodulating unit and tv audio, video interface.
Simultaneously, for the ease of being connected, also have Ethernet interface, intelligent card interface and infrared receiver in this digital TV set-top box with external equipment.
As shown in Figure 3, when digital TV set-top box receives the intercepting instruction, corresponding software promptly is activated, the SDRAM of the temporary frame image data of CPU visit, from this SDRAM, obtain when last frame image data, handle according to bitmap format then and compress, and temporarily be kept among SDRAM or FLASH or the EEPROM; Audio-frequency unit is data intercept from the PCM digital audio stream that decoding is finished then, and according to the format organization of PCM digital audio file be saved among SDRAM or FLASH or the EEPROM.Pre-defined according to the user sends the file among the above-mentioned SDRAM of being kept at or FLASH or the EEPROM from Broadband Network Interface then.
As shown in Figure 4, it is a complete application network system, system comprises that several are installed on the digital TV set-top box with image interception function that links to each other with television set in the user family, this set-top box links to each other with internet (Internet) by modes such as xDSL, LAN, two groups of servers with difference in functionality: reception/management server is also distinguished the internet with Distributor and is linked to each other, set-top box is by internet and this two groups of server communications, to finish the real-time TV tableaux or the transfer function of sound accompaniment; Wherein Distributor also links to each other with mobile telephone network, is used for television image, the sound accompaniment data file of intercepting directly are sent on user's the mobile phone.
Claims (9)
1, a kind of picture of Digital Television, the intercept method of sound accompaniment, it is characterized in that may further comprise the steps: directly read the complete view data of at least one frame that is used in digital television or the digital TV set-top box in the sdram memory of temporary MPEG-2 decoded result, and encode and compress processing according to the digital bitmap file format, view data after handling is saved in the specific data space with file format, simultaneously, obtain data in the digital pcm coded audio stream of the MPEG-2 decoding chip output from digital television or digital TV set-top box, and be digital audio file according to the PCM format conversion, this document also writes in the specific data space and is preserved.
2, the intercept method of the picture of Digital Television according to claim 1, sound accompaniment is characterized in that described specific data space is provided by specific SDRAM or FLASH or EEPROM.
3, the digital TV set-top box of the intercept method of a kind of picture that utilizes Digital Television as claimed in claim 1, sound accompaniment includes:
Central processing unit (CPU);
The MPEG-2 decoding chip is used for MPEG-2 data flow in the decoded digital TV signal;
Be used to handle the sdram memory of picture decoding, be used for temporary by the decoded view data of MPEG-2 decoding chip;
It is characterized in that also including:
SDRAM or FLASH or EEPROM, be used for storing from the described sdram memory that is used for handling picture decoding and read the file that converted to after the image frame data and from the digital pcm coded audio of MPEG-2 decoding chip output flows, obtain the digital audio file that is converted to behind the digital audio-frequency data in central processing unit (CPU) control down.
4, digital TV set-top box according to claim 3, it is characterized in that it also is provided with the intercepting button of a special use, described central processing unit (CPU) started the picture of Digital Television, the intercepting and the storage of sound accompaniment data when detecting this intercepting button and being pressed.
5, digital TV set-top box according to claim 4 is characterized in that it also includes infrared receiver, and described intercepting button be arranged on the matching used remote controller of digital TV set-top box on.
6, digital TV set-top box according to claim 4 is characterized in that it also includes network interface and communications component thereof.
7, digital TV set-top box according to claim 4 is characterized in that it also includes intelligent card interface.
8, a kind of utilize that digital TV set-top box as claimed in claim 3 sets up the application network system, it is characterized in that including:
Have the picture that can intercept Digital Television, the digital TV set-top box of sound accompaniment data;
At least one exclusive data server is used for communicating by network and at least one described digital TV set-top box, receives, keeps in and distribute picture, the sound accompaniment data of the Digital Television that has been truncated to.
9, application network according to claim 8 system, it is characterized in that described data server also is connected communication with mobile telephone network, thereby the picture of the Digital Television that will be truncated to, sound accompaniment data are sent to directly on specific user's the mobile phone by mobile telephone network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100498582A CN1819643A (en) | 2006-03-16 | 2006-03-16 | Picture and accompanying sound cutting method and use for digital TV-set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100498582A CN1819643A (en) | 2006-03-16 | 2006-03-16 | Picture and accompanying sound cutting method and use for digital TV-set |
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| Publication Number | Publication Date |
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| CN1819643A true CN1819643A (en) | 2006-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2006100498582A Pending CN1819643A (en) | 2006-03-16 | 2006-03-16 | Picture and accompanying sound cutting method and use for digital TV-set |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938617A (en) * | 2010-09-30 | 2011-01-05 | 冠捷显示科技（厦门）有限公司 | Television image capturing method |
| CN101938653A (en) * | 2010-08-17 | 2011-01-05 | 深圳市同洲电子股份有限公司 | Method, device and system for acquiring television picture in real time and transmitting to mobile terminal |
| CN102012818A (en) * | 2010-12-01 | 2011-04-13 | 广东威创视讯科技股份有限公司 | Screen recording method and device |
| CN102263922A (en) * | 2010-05-31 | 2011-11-30 | 苏州闻道网络科技有限公司 | Static state image extraction apparatus |
| CN103414935A (en) * | 2013-07-29 | 2013-11-27 | 深圳Tcl新技术有限公司 | Method and device for intercepting audio frequency and video frequency based on user identity information |
| CN104661059A (en) * | 2013-11-20 | 2015-05-27 | 中兴通讯股份有限公司 | Picture playing method and device as well as set-top box |
| CN111405306A (en) * | 2020-03-20 | 2020-07-10 | 深圳宇翊技术股份有限公司 | PIS streaming media service method based on capturing and secondary encoding after playing |
-
2006
- 2006-03-16 CN CNA2006100498582A patent/CN1819643A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102263922A (en) * | 2010-05-31 | 2011-11-30 | 苏州闻道网络科技有限公司 | Static state image extraction apparatus |
| CN101938653A (en) * | 2010-08-17 | 2011-01-05 | 深圳市同洲电子股份有限公司 | Method, device and system for acquiring television picture in real time and transmitting to mobile terminal |
| CN101938617A (en) * | 2010-09-30 | 2011-01-05 | 冠捷显示科技（厦门）有限公司 | Television image capturing method |
| CN102012818A (en) * | 2010-12-01 | 2011-04-13 | 广东威创视讯科技股份有限公司 | Screen recording method and device |
| CN103414935A (en) * | 2013-07-29 | 2013-11-27 | 深圳Tcl新技术有限公司 | Method and device for intercepting audio frequency and video frequency based on user identity information |
| CN103414935B (en) * | 2013-07-29 | 2017-12-29 | 深圳Tcl新技术有限公司 | Method and apparatus based on subscriber identity information interception sound, video |
| CN104661059A (en) * | 2013-11-20 | 2015-05-27 | 中兴通讯股份有限公司 | Picture playing method and device as well as set-top box |
| CN111405306A (en) * | 2020-03-20 | 2020-07-10 | 深圳宇翊技术股份有限公司 | PIS streaming media service method based on capturing and secondary encoding after playing |
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