CN101521820A - Method and device for mobile multimedia broadcast program transition - Google Patents
Method and device for mobile multimedia broadcast program transition Download PDFInfo
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- CN101521820A CN101521820A CN 200910132403 CN200910132403A CN101521820A CN 101521820 A CN101521820 A CN 101521820A CN 200910132403 CN200910132403 CN 200910132403 CN 200910132403 A CN200910132403 A CN 200910132403A CN 101521820 A CN101521820 A CN 101521820A
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Abstract
The invention provides a method and a device for mobile multimedia broadcast program transition. The device comprises a receiving module, a code flow conversion module and an output module which are connected in sequence, wherein, the receiving module is used for receiving the signals of mobile multimedia broadcast programs and processing the signals into mobile multimedia broadcast format code flow; the code flow conversion module is used for converting the mobile multimedia broadcast format code flow into general video format code flow; and the output module is used for outputting the general video format code flow and providing the same for a broadcasting device supporting the general video format. The method and the device for mobile multimedia broadcast program transition can broadcast the mobile multimedia broadcast programs without using a special broadcasting device.
Description
Technical field
The present invention relates to China mobile multi-media broadcasting technology, relate in particular to mobile multi-media broadcast program forwarding method and interconnecting device.
Background technology
Mobile multi-media broadcast terminal can be divided into two kinds of forms of all-in-one and external connection module formula according to physical aspect.All-in-one is that demodulation, demultiplexing, deciphering, decoding and the demonstration of radiofrequency signal realizes by single terminal, as mobile phone, notebook computer etc.; Another kind is an external connection module formula terminal, by SD card or USB interface, connecting other playback terminals (computer, TV etc.) realizes the reception of mobile multi-media broadcast program and represents, as CMMB (China Mobile multimedia broadcasting, China Mobile MultimediaBroadcasting) TV rod, wireless network card etc.
The video format of China Mobile multimedia broadcasting is for H.264, owing to support that at present player H.264 is considerably less, when therefore the mobile multi-media broadcast terminal of external connection module formula has the playback equipment of display screen by SD card or USB connection, the special player of playing mobile multimedia broadcast program need be installed on playback equipment.Just can watch after such as CMMB TV rod and wireless network card driving and special player need being installed, the process more complicated is unfavorable for the promotion and application of China mobile multi-media broadcasting technology.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of forwarding method and mobile multi-media broadcast program interconnecting device of mobile multi-media broadcast program, and making mobile multi-media broadcast program need not special player can play.
For solving the problems of the technologies described above, the invention provides a kind of mobile multi-media broadcast program forwarding method, this method comprises:
(a) signal processing with mobile multi-media broadcast program is a Mobile Multimedia Broadcasting form code stream;
(b) circulation of Mobile Multimedia Broadcasting form type code is changed to generic video form code stream;
(c) described generic video form code stream is offered the playback equipment of supporting the generic video form.
Further, described Mobile Multimedia Broadcasting form code stream is a form code stream H.264, and the code stream of described generic video form is RM or RMVB code stream.
Step (b) further comprises:
(b1) Mobile Multimedia Broadcasting form code stream is divided into several Mobile Multimedia Broadcasting form code stream sections;
(b2) described Mobile Multimedia Broadcasting form code stream section is converted to generic video form code stream section successively, each generic video form code stream section circulation is stored at least two dynamic areas; In the step (c), circulation offers described playback equipment with the generic video form code stream section of described at least two dynamic areas storage.
Further, the rule of described circulation output is consistent with the rule of circulation storage.
For solving the problems of the technologies described above, the present invention also provides a kind of mobile multi-media broadcast program interconnecting device, and this equipment comprises receiver module, code stream modular converter and the output module that links to each other successively, wherein,
Described receiver module is used to receive the signal of mobile multi-media broadcast program and is treated to Mobile Multimedia Broadcasting form code stream;
Described code stream modular converter is used for the circulation of Mobile Multimedia Broadcasting form type code is changed to generic video form code stream;
Described output module is used for described generic video form code stream output, to offer the playback equipment of supporting the generic video form.
Further, described Mobile Multimedia Broadcasting form code stream is a code stream H.264, and the code stream of described generic video form is RM or RMVB code stream.
Further, described code stream modular converter comprises processor and memory, and described processor is used for Mobile Multimedia Broadcasting form code stream is divided into several Mobile Multimedia Broadcasting form code stream sections; Also be used for described Mobile Multimedia Broadcasting form code stream section is converted to generic video form code stream section successively; Described memory comprises at least two dynamic areas, is used for each generic video form code stream section of circulation storage; Described output module is to export described generic video form code stream like this: the generic video form code stream section of circulation output described at least two dynamic areas storage.
Further, the rule of described circulation output is consistent with the rule of circulation storage.
Further, described processor is a codec, and described memory is flash memory or safe digital card.
Compared to prior art, the forwarding method of mobile multi-media broadcast program of the present invention and equipment are mapped as mobile multi-media broadcast program the file of present generic video broadcast format (as RM/RMVB), thereby make mobile multi-media broadcast terminal equipment become memory device with the file function of dynamically updating, do not need the special mobile multimedia broadcasting player just can be on the media player that any support generic video form is play playing mobile multimedia radio and television broadcast program, realize broadcast uniformity and the popularity identical with Internet video, make the broadcast simple and fast of Mobile Multimedia Broadcasting, interface shape is unified, has higher flexibility.In addition, the present invention adopts segmentation conversion, and the mode of circulation storage of a plurality of dynamic areas and output has guaranteed the fluency of video playback to make the user obtain better result of use.
Description of drawings
Fig. 1 is a Mobile Multimedia Broadcasting interconnecting device module diagram of the present invention.
Fig. 2 is the schematic diagram that the file of Mobile Multimedia Broadcasting interconnecting device of the present invention dynamically updates.
Embodiment
The main thought of the forwarding method of mobile multi-media broadcast program of the present invention and Mobile Multimedia Broadcasting interconnecting device is, is the signal of generic video form with the conversion of signals of mobile multi-media broadcast program, to offer the playback equipment of supporting the generic video form.
Mobile Multimedia Broadcasting interconnecting device of the present invention, as shown in Figure 1, be used for providing mobile multi-media broadcast program to the playback equipment of supporting the generic video form, this Mobile Multimedia Broadcasting interconnecting device is the memory mode, comprise the receiver module, code stream modular converter and the output module that link to each other successively, wherein:
Receiver module, be used to receive mobile multimedia broadcast signal, also be used for the signal that receives is carried out demodulation, demultiplexing processing generation Mobile Multimedia Broadcasting form code stream (as the H.264 code stream of standard), and the Mobile Multimedia Broadcasting form code stream that generates is exported to the code stream modular converter;
The code stream modular converter, be used for receiver module is handled the code stream that the Mobile Multimedia Broadcasting form type code circulation that generates is changed to the generic video form, the generic video form has RM (Real Media, true medium), RMVB (Real Media Variable Bit Rate, the forthright and sincere medium of variable code);
Particularly, the code stream modular converter comprises processor and memory, described processor is realized by software or hardware coder, be used for Mobile Multimedia Broadcasting form code stream is divided into several Mobile Multimedia Broadcasting form code stream sections, also be used for described Mobile Multimedia Broadcasting form code stream section is converted to generic video form code stream section successively; Described memory is by flash (FLASH) memory or SD (Secure Digital, secure digital) card is realized, be used for the code stream after interim storage of processor is changed, described memory comprises at least two dynamic areas, is used for circulating successively storing changing the generic video form code stream section that obtains;
Output module is used for the generic video form code stream that output storage is stored, particularly, and the generic video form code stream section of the output that is used for circulating successively described at least two dynamic areas storage.
Mobile multi-media broadcast program forwarding method of the present invention may further comprise the steps:
Step 1: receiver module receives mobile multimedia broadcast signal, carries out signal demultiplexings such as rectification, audio frequency and video, the H.264 code stream of outputting standard;
Step 2: processor by the software/hardware encoding and decoding will be H.264 code stream be converted to the code stream of RM/RMVB, and be stored in the memory;
Step 3: the generic video form code stream that output module obtains after with the conversion of storing in the memory is exported to playback equipment.
Particularly, adopt segmented mode that code stream is handled, comprise that processor segmentation conversion, memory are divided at least two code streams after the dynamic area circulation storage conversion, the generic video form code stream of at least two storage area stores that output module circulation output is corresponding.Certainly, the cycline rule of storage is consistent with the cycline rule of output.
Adopting two dynamic areas alternately to be stored as example with the code stream section of same mobile multi-media broadcast program describes: carry out the encoding and decoding of the 1st segment data earlier, with storage in the dynamic area 1; After the 1st section decoding finished, output module used the data in the device plays dynamic area 1 of supporting the general format media play with the data output of dynamic area 1, and soon played file is mapped as the data in the memory block 1; Simultaneously processor carries out the 2nd section data encoding and decoding, with storage in dynamic area 2; The defeated data that after rolling played file are mapped as in the memory block 2 of data in the dynamic area 1, this moment, the 2nd section data encoding and decoding were finished, and the 3rd section data encoding and decoding are then carried out in the code stream conversion, and data are stored in again in the dynamic area 1.
Dynamic area 1 and 2 hocket conversion back code stream section storage and support the output code flow section to carry out video playback, shown in solid line and dotted line among Fig. 2, thereby can guarantee the fluency of video playback.
The forwarding method of mobile multi-media broadcast program of the present invention and interconnecting device are mapped as at present the comparatively file of generic video form with mobile multi-media broadcast program, thereby the memory device that mobile multi-media broadcast terminal is become have the file function of dynamically updating, do not need media player that the special mobile multimedia broadcasting player just can play at any support generic video form (as media player MEDIA PLAYER, TV, the MP5 player) goes up playing mobile multimedia broadcast program, realize broadcast uniformity and the popularity identical with Internet video, make the broadcast simple and fast of Mobile Multimedia Broadcasting, interface shape is unified, has higher flexibility.
Processor carries out the alternately conversion of the data of storage area, and the played file of mapping dynamically updates, and carries out the continuous broadcast of video.In addition, the present invention adopts segmentation conversion, and the mode of circulation storage of a plurality of dynamic areas and output has guaranteed the fluency of video playback to make the user obtain better result of use.
Claims (9)
1, a kind of mobile multi-media broadcast program forwarding method is characterized in that, this method comprises:
(a) signal processing with mobile multi-media broadcast program is a Mobile Multimedia Broadcasting form code stream;
(b) circulation of Mobile Multimedia Broadcasting form type code is changed to generic video form code stream;
(c) described generic video form code stream is offered the playback equipment of supporting the generic video form.
2, the method for claim 1 is characterized in that: described Mobile Multimedia Broadcasting form code stream is a form code stream H.264, and the code stream of described generic video form is true medium RM or the forthright and sincere medium RMVB of variable code code stream.
3, the method for claim 1 is characterized in that: step (b) further comprises:
(b1) Mobile Multimedia Broadcasting form code stream is divided into several Mobile Multimedia Broadcasting form code stream sections;
(b2) described Mobile Multimedia Broadcasting form code stream section is converted to generic video form code stream section successively, each generic video form code stream section circulation is stored at least two dynamic areas; In the step (c), circulation offers described playback equipment with the generic video form code stream section of described at least two dynamic areas storage.
4, method as claimed in claim 3 is characterized in that: the rule of described circulation output is consistent with the rule of circulation storage.
5, a kind of mobile multi-media broadcast program interconnecting device is characterized in that, this equipment comprises receiver module, code stream modular converter and the output module that links to each other successively, wherein,
Described receiver module is used to receive the signal of mobile multi-media broadcast program and is treated to Mobile Multimedia Broadcasting form code stream;
Described code stream modular converter is used for the circulation of Mobile Multimedia Broadcasting form type code is changed to generic video form code stream;
Described output module is used for described generic video form code stream output, to offer the playback equipment of supporting the generic video form.
6, equipment as claimed in claim 5 is characterized in that: described Mobile Multimedia Broadcasting form code stream is a code stream H.264, and the code stream of described generic video form is true medium RM or the forthright and sincere medium RMVB of variable code code stream.
7, equipment as claimed in claim 5 is characterized in that: described code stream modular converter comprises processor and memory, and described processor is used for Mobile Multimedia Broadcasting form code stream is divided into several Mobile Multimedia Broadcasting form code stream sections; Also be used for described Mobile Multimedia Broadcasting form code stream section is converted to generic video form code stream section successively; Described memory comprises at least two dynamic areas, is used for each generic video form code stream section of circulation storage; Described output module is to export described generic video form code stream like this: the generic video form code stream section of circulation output described at least two dynamic areas storage.
8, equipment as claimed in claim 7 is characterized in that: the rule of described circulation output is consistent with the rule of circulation storage.
9, equipment as claimed in claim 5 is characterized in that, described processor is a codec, and described memory is flash memory or safe digital card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910132403 CN101521820A (en) | 2009-03-24 | 2009-03-24 | Method and device for mobile multimedia broadcast program transition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910132403 CN101521820A (en) | 2009-03-24 | 2009-03-24 | Method and device for mobile multimedia broadcast program transition |
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| CN101521820A true CN101521820A (en) | 2009-09-02 |
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| CN 200910132403 Pending CN101521820A (en) | 2009-03-24 | 2009-03-24 | Method and device for mobile multimedia broadcast program transition |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011134310A1 (en) * | 2010-04-27 | 2011-11-03 | 中兴通讯股份有限公司 | System and method for generating flash-based media stream |
| WO2016138843A1 (en) * | 2015-03-03 | 2016-09-09 | 腾讯科技（深圳）有限公司 | Video source access method and device |
-
2009
- 2009-03-24 CN CN 200910132403 patent/CN101521820A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011134310A1 (en) * | 2010-04-27 | 2011-11-03 | 中兴通讯股份有限公司 | System and method for generating flash-based media stream |
| CN102238151A (en) * | 2010-04-27 | 2011-11-09 | 中兴通讯股份有限公司 | Flash-based media stream generation system and method |
| CN102238151B (en) * | 2010-04-27 | 2014-07-16 | 中兴通讯股份有限公司 | Flash-based media stream generation system and method |
| US9232256B2 (en) | 2010-04-27 | 2016-01-05 | Zte Corporation | System and method for generating flash-based media stream |
| WO2016138843A1 (en) * | 2015-03-03 | 2016-09-09 | 腾讯科技（深圳）有限公司 | Video source access method and device |
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Application publication date: 20090902 |