CN100407706C - Multi-media processing method - Google Patents
Multi-media processing method Download PDFInfo
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- CN100407706C CN100407706C CN2006100355470A CN200610035547A CN100407706C CN 100407706 C CN100407706 C CN 100407706C CN 2006100355470 A CN2006100355470 A CN 2006100355470A CN 200610035547 A CN200610035547 A CN 200610035547A CN 100407706 C CN100407706 C CN 100407706C
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Abstract
The present invention discloses a multimedia processing method. In an external multimedia processing device connected with a host and based on a data communication standard protocol, the multimedia processing device is described into an audio type device data packet, a video type device data packet and a large capacity storage type device data packet according to functional classification in a description data packet of the device. The present invention is provided with corresponding data transmission channels for each type of data, when a certain function of the multimedia processing device is operated by the host, a relevant data packet is packed according to a protocol of the device and a command is sent out. The multimedia processing device receives the control command of the host and generates interrupt. The command from the host is judged by an interrupt service routine which selects a corresponding channel to transmit data. The present invention leads the multimedia processing device to transmit audio/video data streams in real time as well as to realize the functions of transmitting and storing other data.
Description
Technical field
The present invention relates to a kind of multi-media processing method, especially relate to and a kind ofly can realize simultaneously that audio and video data streams transmits in real time and Large Volume Data transmits, the multi-media processing method of memory function.
Background technology
Present multimedia processing apparatus can pass through data transmission interface (general purpose interface bus for example, universal serialbus, be called for short usb) realize the transfer of data between external host and the multimedia processing apparatus, equipment can save the data in the memory cell, realizes the function of memory device; Also can realize the real-time Transmission of the audio, video data between external host and the multimedia processing apparatus by data transmission interface, but equipment with main-machine communication in, because informing this equipment of main frame just uses as the equipment of a certain class function, make when realizing this function, equipment can't transmit the data of other types again, does not utilize the whole bandwidth of data communication channel fully.
Summary of the invention
In order to overcome the deficiency of above technology, the object of the present invention is to provide a kind of multi-media processing method, make multimedia processing apparatus when realizing that audio and video data streams transmits in real time, can realize the function of other transfer of data, storage simultaneously.
The object of the invention can realize by following scheme: a kind of multi-media processing method, in the external multimedia processing apparatus that connects main frame, according to the data communication agreement, in the data of description bag of equipment, multimedia processing apparatus is described as the audio class device package by functional classification, video class device package and mass storage class device package, and above-mentioned three class data are provided with corresponding data-transmission channel separately, when main frame need be operated multimedia processing apparatus class function, according to the corresponding packet of the protocol packing of this kind equipment and give an order, multimedia processing apparatus receives that the control command of main frame produces interruption, and the order of interrupt service routine judgement main frame is also selected to transmit data by respective channel.
In the packet of describing the functions of the equipments type, audio class equipment uses 0 end points and a pair of turnover end points a, b, and wherein 0 end points is used to receive the control command of main frame, and end points a is used for uploading voice data, and end points b is used for receiving the voice data that passes under the main frame; Video class equipment uses 0 end points and other a pair of turnover end points c, d, and wherein 0 end points is used to receive the control command of main frame, and end points c is used for transmitting video data, and end points d is used for receiving the video data that passes under the main frame; Mass storage class equipment re-uses a pair of end points e, the f that is different from audio class and video class use, and wherein end points e is used for receiving the control command of main frame and receiving the data that main frame passes down, and end points f is used for uploading data.
Like this, according to the data communication agreement, main frame by the data of description bag of equipment, just knows which kind of equipment equipment is when equipment connects, and knows when carrying out certain kind equipment operation, by which bar channel transfer data.When main frame need be operated equipment class function, according to the corresponding packet of the protocol packing of this kind equipment, equipment receives that the control data of main frame produces interruption, interrupt service routine is judged the order of main frame and is correspondingly processed, if just delivering to data the decoding unit of audio frequency and video, the following biography of audio, video data carries out real-time decoding output, if the data that need uploading of audio, video data just will gather are uploaded to main frame by the passage of distributing in advance, if the following biography of Large Volume Data just arrives memory cell with deposit data.Like this, objectively each time point equipment can only be handled the request of a kind equipment, but because enough fast of communication speed, the data of audio frequency and video can reach the effect of real-time Transmission, in the time slot of non-audio, video data transmission, the transmission and the storage of other data have been realized simultaneously.
Description of drawings
Fig. 1 is the FB(flow block) of the inventive method.
Embodiment
As shown in Figure 1, the packet of the description functions of the equipments type in the multimedia processing apparatus, according to the standard agreement of usb or other standard communications protocol, equipment is described as the audio class device package, video class device package and mass storage class device package, audio class equipment uses 0 end points, end points a (making the in end points uses) and end points b (making the out end points uses), 0 end points is used to receive the control command of main frame, end points a is used for uploading voice data, and end points b is used for receiving the voice data that passes under the main frame; Video class equipment uses 0 end points, end points c (do in end points use) and end points d (making the out end points uses), and 0 end points is used to receive the control command of main frame, and end points c is used for transmitting video data, and end points d is used for receiving the video data of biography under the main frame; Mass storage class equipment uses end points e (making the out end points uses) and end points f (making the in end points uses), and end points e is used for receiving the control command of main frame and receives the data that main frame passes down, and end points f is used for uploading data.
The flow process that multimedia is handled is shown in block diagram 1, and is specific as follows:
1) host computer is operated the audio frequency and video class function of multimedia processing apparatus, and end points 0 produces and interrupts in the multimedia processing apparatus, and the control command of the control command of analysis computer main frame and audio frequency, video is prepared corresponding packet in default passage;
2) voice data is uploaded, and end points a produces interruption, and the voice data that multimedia processing apparatus just will have been gathered is uploaded to host computer by end points a;
3) voice data passes down, and end points b produces interruption, and the data that multimedia processing apparatus passes host computer down are put in the buffering by end points b and pass to DAC;
4) video data is uploaded, and end points c produces interruption, and multimedia processing apparatus is uploaded to host computer with the video data through gathering by end points c;
5) video data passes down, and end points d produces interruption, and the data that multimedia processing apparatus passes host computer down by end points d are put in the buffering and pass to video output unit;
6) host computer is operated the mass storage class function of multimedia processing apparatus or the Large Volume Data of host computer passes down, end points e produces interruption, the mass storage class control command of analysis computer main frame, and write the data that host computer passes down in the memory of multimedia processing apparatus by end points e;
7) Large Volume Data of host computer is uploaded, and end points f produces interruption, and multimedia processing apparatus is uploaded to host computer with Large Volume Data by end points f;
8) carry out other interrupt handling routines.
Claims (1)
1. multi-media processing method, in the external multimedia processing apparatus that connects main frame, according to the data communication agreement, in the data of description bag of equipment, be described as the audio class device package according to the multimedia processing apparatus functional classification, video class device package and mass storage class device package, and above-mentioned three class data are provided with corresponding data-transmission channel separately, when main frame need be operated multimedia processing apparatus class function, according to the corresponding packet of the protocol packing of this kind equipment and give an order, multimedia processing apparatus receives that the control command of main frame produces interruption, and the order of interrupt service routine judgement main frame is also selected to transmit data by respective channel; It is characterized in that: in the packet of describing the functions of the equipments type, audio class equipment uses 0 end points and a pair of turnover end points a, b, wherein 0 end points is used to receive the control command of main frame, and end points a is used for uploading voice data, and end points b is used for receiving the voice data that passes under the main frame; Video class equipment uses 0 end points and other a pair of turnover end points c, d, and wherein 0 end points is used to receive the control command of main frame, and end points c is used for the uploaded videos data, and end points d is used for receiving the video data that passes under the main frame; Mass storage class equipment re-uses a pair of end points e, the f that is different from audio class and video class use, and wherein end points e is used for receiving the control command of main frame and receiving the data that main frame passes down, and end points f is used for uploading data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100355470A CN100407706C (en) | 2006-05-22 | 2006-05-22 | Multi-media processing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006100355470A CN100407706C (en) | 2006-05-22 | 2006-05-22 | Multi-media processing method |
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| CN1852257A CN1852257A (en) | 2006-10-25 |
| CN100407706C true CN100407706C (en) | 2008-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2006100355470A Expired - Fee Related CN100407706C (en) | 2006-05-22 | 2006-05-22 | Multi-media processing method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847920B (en) * | 2018-06-25 | 2021-06-29 | 北京零态空间数码科技有限公司 | Communication method and system |
| CN111638773A (en) * | 2020-06-09 | 2020-09-08 | 安徽励展文化科技有限公司 | Multimedia image processing system of multimedia exhibition room |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6292917B1 (en) * | 1998-09-30 | 2001-09-18 | Agere Systems Guardian Corp. | Unequal error protection for digital broadcasting using channel classification |
| CN2593264Y (en) * | 2002-12-11 | 2003-12-17 | 高明 | Intellection electronic device |
| CN1613072A (en) * | 2002-01-09 | 2005-05-04 | 皇家飞利浦电子股份有限公司 | A method and apparatus for multimodal story segmentation for linking multimedia content |
| CN1717905A (en) * | 2002-11-27 | 2006-01-04 | Rgb网络有限公司 | Apparatus and method for dynamic channel mapping and optimized scheduling of data packets |
-
2006
- 2006-05-22 CN CN2006100355470A patent/CN100407706C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6292917B1 (en) * | 1998-09-30 | 2001-09-18 | Agere Systems Guardian Corp. | Unequal error protection for digital broadcasting using channel classification |
| CN1613072A (en) * | 2002-01-09 | 2005-05-04 | 皇家飞利浦电子股份有限公司 | A method and apparatus for multimodal story segmentation for linking multimedia content |
| CN1717905A (en) * | 2002-11-27 | 2006-01-04 | Rgb网络有限公司 | Apparatus and method for dynamic channel mapping and optimized scheduling of data packets |
| CN2593264Y (en) * | 2002-12-11 | 2003-12-17 | 高明 | Intellection electronic device |
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Address after: 519085 hi tech Zone, Guangdong, Zhuhai science and Technology Innovation Coast Road, No. four, No. 1 Patentee after: Juli Integrated Circuit Design Co., Ltd. Address before: 519085, No. 1, Da Ha Road, Tang Wan Town, Guangdong, Zhuhai, -15-A101 Patentee before: Juli Integrated Circuit Design Co., Ltd. |
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Granted publication date: 20080730 Termination date: 20160522 |