CN100488257C - Mobile multimedia broadcasting terminal multi-image handling method and device - Google Patents
Mobile multimedia broadcasting terminal multi-image handling method and device Download PDFInfo
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- CN100488257C CN100488257C CNB2007100872537A CN200710087253A CN100488257C CN 100488257 C CN100488257 C CN 100488257C CN B2007100872537 A CNB2007100872537 A CN B2007100872537A CN 200710087253 A CN200710087253 A CN 200710087253A CN 100488257 C CN100488257 C CN 100488257C
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Abstract
A method for processing multiple image of mobile multimedia broadcast terminal includes receiving and analyzing multiplex frame head by terminal fro obtaining relevant information of each multiplex sub-frame, analyzing each multiplex sub-frame to obtain relevant data of each multiplex sub-frame, starting to decode a corresponding multiplex sub-frame after I frame of each multiplex sub-frame is received by terminal and displaying multiple image on terminal according relevant data of each multiplex sub-frame when all multiplex sub-fame are started to be decoded.
Description
Technical field
The present invention relates to the digital mobile communication field, more specifically, relate to a kind of multi-image handling method and device of mobile multi-media broadcast terminal, and the mobile multi-media broadcast terminal that uses this method and apparatus.
Background technology
In recent years, digital mobile multimedia broadcasting technology and standard evolution are rapid, for example, the digital video broadcast-handheld formula in Europe receives (Digital Video Broadcast Handheld:DVB-H), the Mobile Multimedia Broadcasting (China Mobile MultimediaBroadcasting:CMMB) of single forward link of the medium of the U.S. (Media Forward Link Only:MediaFLO) and China etc., they provide many service content for its terminal use, for example advertisement, weather forecast, news, sports cast, variety, the multimedia broadcasting play, with programs such as films, like this, the user just can select the service program of Mobile Multimedia Broadcasting according to the hobby of oneself.
Mobile Multimedia Broadcasting adopts time division way to send MBMS service, and the duration of its broadcast channel frame is 1 second, is made up of 40 25 milliseconds of time slots, and wherein, one or more time slots can carry the data of a broadcasting multiplex frame encapsulation.In the multiplexed frame structure of Mobile Multimedia Broadcasting, multiplexed frame is divided into multiplex frame head, multiplexed frame payload and fills three parts.(multiplexed frame 0 be used for communicating control information) comprises a plurality of multiplexed sub frames in a multiplexed frame, and each multiplexed sub frame can carry a multimedia service, and first multiplexed sub frame defaults to the multimedia service that full screen shows.
Each multiplexed sub frame comprises video data and voice data.Wherein, video data mainly comprises following three kinds of image encoding frames: I frame, B frame and P frame.The I frame is intraframe coding, can independently decode.B frame and P frame adopt interframe encode, can not independently decode.
According to the information of multiplexed frame and multiplexed sub frame, can in the Multimedia Mobile multi-media broadcast terminal, show a plurality of pictures, each picture is corresponding with a multimedia service.
Because the multimedia service that transmits all is to handle through video coding, if when start, just directly all business are carried out the while decoding and displaying, will certainly be because of the reason of image coding and decoding, the picture that causes having can not be decoded, be shown as black surround, influence user's experience.Thereby, be badly in need of a kind of can solution of the above problems.
Summary of the invention
The present invention proposes a kind of multi-image handling method and device of mobile multi-media broadcast terminal, it makes terminal to show a plurality of video traffics on terminal by the relevant information in multiplex frame head and the multiplexed sub frame.
One aspect of the present invention provides a kind of multi-image handling method of mobile multi-media broadcast terminal, and it can may further comprise the steps: step S102, and terminal receives and resolves multiplex frame head, obtains the relevant information of each multiplexed sub frame; Step S104 resolves each multiplexed sub frame, obtains the related data of each multiplexed sub frame in each multiplexed sub frame; Step S106, the I frame of each multiplexed sub frame of terminal wait, and after receiving the I frame, begin the corresponding multiplexed sub frame of decoding; And step S108, when each multiplexed sub frame had all begun to decode, terminal showed many pictures according to the related data of each multiplexed sub frame on terminal.
According to an aspect of the present invention, relevant information can comprise following at least a: the number of multiplexed sub frame and the length of multiplexed sub frame.
Related data can comprise following at least a: video data, voice data, video algorithm type, video code rate indication, image show that indication, resolution indication, frame frequency indication, image show that abscissa, image show ordinate and image display priority.
According to an aspect of the present invention, can also may further comprise the steps in step S108: terminal shows that according to image display priority, the image of each multiplexed sub frame abscissa and image show that ordinate decides the covering of image display buffer.
Another aspect of the present invention provides a kind of many image processing devices of mobile multi-media broadcast terminal, and it can comprise: first resolution unit, be positioned on the terminal, and be used for receiving and resolving multiplex frame head, obtain the relevant information of each multiplexed sub frame; Second resolution unit is used to resolve each multiplexed sub frame, obtains the related data of each multiplexed sub frame in each multiplexed sub frame; Decoding unit is used to wait for the I frame of each multiplexed sub frame, and begins the corresponding multiplexed sub frame of decoding after receiving the I frame; And display unit, be used for when each multiplexed sub frame has all begun to decode, on terminal, show many pictures according to the related data of each multiplexed sub frame.
According to another aspect of the present invention, relevant information can comprise following at least a: the number of multiplexed sub frame and the length of multiplexed sub frame.Related data can comprise following at least a: video data, voice data, video algorithm type, video code rate indication, image show that indication, resolution indication, frame frequency indication, image show that abscissa, image show ordinate and image display priority.
Image display priority, image that display unit can be used for according to each multiplexed sub frame show that abscissa and image show that ordinate decides the covering of image display buffer.
According to the present invention, a kind of mobile multi-media broadcast terminal has also been proposed, it has used above-mentioned multi-image handling method.
According to the present invention, a kind of mobile multi-media broadcast terminal has also been proposed, it has used above-mentioned many image processing devices.
By the present invention, can avoid occurring improving user's satisfaction because the situation of many pictures black surround appears in terminal.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the multi-image handling method of mobile multi-media broadcast terminal of the present invention;
Fig. 2 is the flow chart according to many pictures of terminal procedure for displaying of the embodiment of the invention;
Fig. 3 is the schematic diagram according to the terminal display of the embodiment of the invention; And
Fig. 4 is the block diagram according to many image processing devices of mobile multi-media broadcast terminal of the present invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Fig. 1 is the flow chart according to the multi-image handling method of mobile multi-media broadcast terminal of the present invention.As shown in Figure 1, this method may further comprise the steps:
Step S102, terminal receives and resolves multiplex frame head, obtains the relevant information of each multiplexed sub frame;
Step S104 resolves each multiplexed sub frame, obtains the related data of each multiplexed sub frame in each multiplexed sub frame;
Step S106, the I frame of each multiplexed sub frame of terminal wait, and after receiving the I frame, begin the corresponding multiplexed sub frame of decoding; And
Step S108, when each multiplexed sub frame had all begun to decode, terminal showed many pictures according to the related data of each multiplexed sub frame on terminal.
In the method for the invention, relevant information comprises following at least a: the number of multiplexed sub frame and the length of multiplexed sub frame.Related data comprises following at least a: video data, voice data, video algorithm type, video code rate indication, image show that indication, resolution indication, frame frequency indication, image show that abscissa, image show ordinate and image display priority.
In addition, further comprising the steps of in step S108: terminal shows that according to image display priority, the image of each multiplexed sub frame abscissa and image show that ordinate decides the covering of image display buffer.
Fig. 2 is the flow chart according to many pictures of terminal procedure for displaying of the embodiment of the invention, and Fig. 3 is the schematic diagram according to the terminal display of the embodiment of the invention.Describe the process of Fig. 2 in detail below with reference to Fig. 3, as shown in Figure 2, this process may further comprise the steps:
Step S202, the terminal parses multiplex frame head obtains the number of multiplexed sub frame, information such as length;
Step S204, each multiplexed sub frame of terminal parses obtains a plurality of multimedia service video datas, voice data, video algorithm type, video code rate indication, image shows that indication, resolution indication, frame frequency indication, image show that abscissa, image show information such as ordinate, image display priority;
Step S206 judges whether to receive the I frame of first multiplexed sub frame, if receive the video-frequency band I frame of first multiplexed sub frame then carry out step S208, otherwise continues to wait for;
Step S208, if all subframes have all begun decoding, then carry out step S210, otherwise the I frame data and the decoding and displaying of search residue subframe, judge whether above-mentioned search finishes, if search finishes, then carry out step S204, otherwise continue search, wherein, detailed process is as follows: wait for the I frame of corresponding subframe, then decoding and displaying on screen, show that according to image display priority and image abscissa and image show the covering of ordinate decision image display buffer, each service integration subframe of circular treatment; And
Step S210, normal process decoding and displaying flow process, the image display screen that the too much picture demonstration of warp is handled is as shown in Figure 3.
Should be appreciated that at this, use the multi-media broadcast terminal of above-mentioned multi-image handling method can comprise portable terminals such as mobile phone, PDA, handheld terminal and mobile TV.
Fig. 4 is the block diagram according to many image processing devices 400 of mobile multi-media broadcast terminal of the present invention.As shown in Figure 4, many image processing devices 400 comprise: first resolution unit 402, be positioned on the terminal, and be used for receiving and resolving multiplex frame head, obtain the relevant information of each multiplexed sub frame; Second resolution unit 404 is used to resolve each multiplexed sub frame, obtains the related data of each multiplexed sub frame in each multiplexed sub frame; Decoding unit 406 is used to wait for the I frame of each multiplexed sub frame, and begins the corresponding multiplexed sub frame of decoding after receiving the I frame; And display unit 408, be used for when each multiplexed sub frame has all begun to decode, on terminal, show many pictures according to the related data of each multiplexed sub frame.
Wherein, relevant information comprises following at least a: the number of multiplexed sub frame and the length of multiplexed sub frame.Related data comprises following at least a: video data, voice data, video algorithm type, video code rate indication, image show that indication, resolution indication, frame frequency indication, image show that abscissa, image show ordinate and image display priority.
In addition, the display unit 408 image display priority, image that can also be used for according to each multiplexed sub frame shows that abscissa and image show that ordinate decides the covering of image display buffer.
Should be appreciated that at this, use the multi-media broadcast terminal of above-mentioned many image processing devices can comprise mobile phone, PDA, handheld terminal and mobile TV etc.
In sum, by the multi-image handling method and the device of mobile multi-media broadcast terminal of the present invention, can avoid occurring improving user's satisfaction because the situation of many pictures black surround appears in terminal.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the multi-image handling method of a mobile multi-media broadcast terminal is characterized in that, may further comprise the steps:
Step S102, terminal receives and resolves multiplex frame head, obtains the relevant information of each multiplexed sub frame;
Step S104 resolves described each multiplexed sub frame, obtains the related data of each multiplexed sub frame in described each multiplexed sub frame;
Step S106, the I frame of described each multiplexed sub frame of described terminal wait, and after receiving described I frame, begin the corresponding multiplexed sub frame of decoding; And
Step S108, when described each multiplexed sub frame had all begun to decode, described terminal showed many pictures according to the described related data of described each multiplexed sub frame on terminal.
2. multi-image handling method according to claim 1 is characterized in that, described relevant information comprises following at least a: the number of described multiplexed sub frame and the length of described multiplexed sub frame.
3. multi-image handling method according to claim 1 and 2, it is characterized in that described related data comprises following at least a: video data, voice data, video algorithm type, video code rate indication, image show that indication, resolution indication, frame frequency indication, image show that abscissa, image show ordinate and image display priority.
4. multi-image handling method according to claim 3 is characterized in that, and is further comprising the steps of in described step S108:
Described terminal shows that according to the described image display priority of each described multiplexed sub frame, described image abscissa and described image show that ordinate decides the covering of image display buffer.
5. many image processing devices of a mobile multi-media broadcast terminal is characterized in that, comprising:
First resolution unit is positioned on the terminal, is used for receiving and resolving multiplex frame head, obtains the relevant information of each multiplexed sub frame;
Second resolution unit is used to resolve described each multiplexed sub frame, obtains the related data of each multiplexed sub frame in described each multiplexed sub frame;
Decoding unit is used to wait for the I frame of described each multiplexed sub frame, and begins the corresponding multiplexed sub frame of decoding after receiving described I frame; And
Display unit is used for when described each multiplexed sub frame has all begun to decode, and shows many pictures according to the described related data of described each multiplexed sub frame on terminal.
6. many image processing devices according to claim 5 is characterized in that, described relevant information comprises following at least a: the number of described multiplexed sub frame and the length of described multiplexed sub frame.
7. according to claim 5 or 6 described many image processing devices, it is characterized in that described related data comprises following at least a: video data, voice data, video algorithm type, video code rate indication, image show that indication, resolution indication, frame frequency indication, image show that abscissa, image show ordinate and image display priority.
8. many image processing devices according to claim 7, it is characterized in that described display unit is used for showing that according to the described image display priority of each described multiplexed sub frame, described image abscissa and described image show that ordinate decides the covering of image display buffer.
9. a mobile multi-media broadcast terminal uses each described multi-image handling method in the claim 1 to 4.
10. a mobile multi-media broadcast terminal has each described many image processing devices in the claim 5 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100872537A CN100488257C (en) | 2007-03-21 | 2007-03-21 | Mobile multimedia broadcasting terminal multi-image handling method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100872537A CN100488257C (en) | 2007-03-21 | 2007-03-21 | Mobile multimedia broadcasting terminal multi-image handling method and device |
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| Publication Number | Publication Date |
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| CN101022559A CN101022559A (en) | 2007-08-22 |
| CN100488257C true CN100488257C (en) | 2009-05-13 |
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| CN103297202B (en) * | 2012-02-29 | 2016-10-05 | 华为技术有限公司 | The processing method and processing device of channel condition information |
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