CN101741587B - Multimedia terminal playing PPT and method for playing PPT thereon - Google Patents
Multimedia terminal playing PPT and method for playing PPT thereon Download PDFInfo
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- CN101741587B CN101741587B CN2008101775327A CN200810177532A CN101741587B CN 101741587 B CN101741587 B CN 101741587B CN 2008101775327 A CN2008101775327 A CN 2008101775327A CN 200810177532 A CN200810177532 A CN 200810177532A CN 101741587 B CN101741587 B CN 101741587B
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Abstract
The invention provides a multimedia terminal playing PPT and a method for playing PPT thereon. The terminal comprises a PPT file decoding module, a buffer memory module, a coding module and a play control module, wherein the PPT file decoding module is used for resolving the content of a PPT file and storing the resolved content of the PPT file in the buffer memory module; the buffer memory module is used for receiving and storing the resolved content of the PPT file; the coding module is used for reading the data information in the buffer memory module and generating an RGV or YUV format video; and the play control module is used for receiving and playing the RGV or YUV format video sent by the coding module. By adopting the technical scheme, the purpose of playing the PPT file on the multimedia terminal can be achieved without using a computer and other equipment.
Description
Technical field
The invention belongs to the multimedia terminal equipment field, be specifically related on these terminal equipments, play-over the method for PPT (PowerPoint) document.
Background technology
In the application of video conference; Often need carry out playing in the process some PPT presentation files in meeting; Present employed method all is to open the PPT document through computer, and computer screen is sent on the video conference terminal through software or hardware device, joins in the meeting video as the second road video; The method of this broadcast PPT at first needs a computer; Computer screen is caught and video conversion apparatus, in practical application, gives the user video conference users is produced higher requirement, and can produce the expense of buying relevant device.
TV for TV set-top box, DVD, band USB mouth; USB is mainly used in displaying video, music file on these equipment at present; At present also do not have to be used for play-overing the multimedia terminal and the method for PPT document, but this demand can be put forward by the user gradually.
The PPT document is a kind of formatted file that Microsoft formulates, and show that the PPT document has specific (special) requirements to the software environment of computer, needs windows; Xwindow; The Windows of WinCE and so on, and the software environment of PPT document is not play-overed basically all based on designing on the embedded OS in the multimedia terminal; Therefore, need a kind of method and realize this PPT document of on the multimedia terminal, playing.
Summary of the invention
The technical problem that the present invention will solve provides a kind of multimedia terminal of the PPT of broadcast document and plays the method for PPT document above that, can be implemented in and play the PPT document on the multimedia terminal.
In order to address the above problem, the invention provides a kind of multimedia terminal of the PPT of broadcast document, comprise PPT document decoder module, cache module, coding module, transmit control module;
Said PPT document decoder module is used to resolve the PPT document content, and stores the PPT document content that parses into cache module;
The PPT document content that said cache module is used to receive and storing and resolving goes out;
Said coding module is used for reading the data message of cache module, generates the video of RGB or yuv format;
Said transmit control module is used for the video of RGB that the received code module sends or yuv format and with its broadcast.
Further, said coding module also is used for need when other video conference terminal is play, the RGB that generates or the video of yuv format being sent to said other video conference terminal when said PPT document.
Further, said PPT document decoder module also is used to analyze PPT document access authority, file size, PPT version number, and the undesirable transmit control module of then notifying points out the user undesirable, meets the requirements and resolves said PPT document again;
Said transmit control module is used to also receive that the said PPT document of said undesirable notice back prompting user is undesirable.
Further; Said PPT document decoder module is resolved the PPT document content and is meant; Read institutional framework, the copyright information of said PPT document, every page Word message, pictorial information; Reorganize data structure according to the affiliated page, parse entry block number, pictorial information, Word message, summary info, the active user's of PPT document information and said Word message, pictorial information coordinate information at the place page.
The present invention also provides a kind of method of playing the PPT document in the multimedia terminal, and buffer memory behind the multimedia terminal parsing PPT document content generates the PPT document content of buffer memory the video and the broadcast of required RGB in multimedia terminal or yuv format then.
Further, when needs when other video conference terminal is play, said multimedia terminal sends to said other video conference terminal with the RGB that generates or the video of yuv format.
Further, PPT document access authority, file size, PPT version number are analyzed in said multimedia terminal, undesirablely show that then the said PPT document of user is undesirable, meet the requirements and resolve said PPT document again.
Further; Said multimedia terminal is resolved the PPT document content and is meant; Read institutional framework, the copyright information of said PPT document, every page Word message, pictorial information; Reorganize data structure according to the affiliated page, parse entry block number, pictorial information, Word message, summary info, the active user's of PPT document information and said Word message, pictorial information coordinate information at the place page.
In sum, the multimedia terminal that the invention provides a kind of PPT of broadcast document reaches the method for playing the PPT document above that, utilizes the USB port of multimedia terminal equipment, need not to realize the broadcast of PPT document under the auxiliary condition of computer and miscellaneous equipment.Compared with prior art; In multimedia terminal equipment, increase the playing function of PPT document; Solve present PPT document and need depend on the deficiency that computer and window type operating system could be play; Need only the USB mouth that USB flash disk is inserted in the terminal, can watch the PPT document content on TV, be with a wide range of applications.
Description of drawings
Fig. 1 is a multimedia terminal of the present invention structural representation;
Fig. 2 is the inventive method flow chart.
Embodiment
The present invention provides a kind of multimedia terminal of the PPT of broadcast document and plays the method for PPT document above that; The PPT document content is resolved in the multimedia terminal; And, play the video data that generates then with the required video data in PPT document content generation multimedia terminal that parses.
Present embodiment provides a kind of multimedia terminal of the PPT of broadcast document, and is as shown in Figure 1, comprises PPT document decoder module, cache module, coding module, transmit control module;
PPT document decoder module is used for analytical documentation access rights, file size, PPT version number, undesirablely then notifies transmit control module prompting user undesirable and abandon playing;
The upper limit that the said undesirable PPT of comprising document receives copyright management system protection, the PPT document size of Microsoft to surpass playback equipment to support, the software version of making PPT are higher than the version that current playback equipment supports etc.
PPT document decoder module also is used for when the PPT document meets the requirements, reading institutional framework, the copyright information of this PPT document, every page literal, image data.Reorganize data structure according to the affiliated page; Parse the content of PPT document; Comprise the Main stream that resolves the PPT document (comprised entry block number), Picture stream (having comprised all pictures), Document stream (having comprised the relevant information of literal), Summary information stream (summary info that has comprised document), CurrentUser stream (information that has comprised the active user) and literal, picture coordinate information at the place page, and with the content caching that parses to cache module;
Cache module is used for Word message, the pictorial information of the PPT document that buffer memory parses, and literal, picture are at the coordinate information of the place page.During buffer memory can but be not limited to according to page up, current page, the regular buffer memory PPT document decoder module data sent information of one page down, to improve display efficiency, if the multimedia terminal memory headroom is enough, all pages that also can buffer memory parse;
Coding module be used for when needs when the PPT document is put in this machine sowing, the video data that the literal that parses stored in the cache module and image data are encoded to required RGB in multimedia terminal or yuv format; Also be used for when the PPT document need be when other user's video conference terminal be play; Output to video conference terminal after the literal that parses and image data be encoded to YUV or RGB; This video conference terminal is encoded to it code stream of the video conference coded format identical with active conference again, as H.263, H.264 wait.
Transmit control module is used for playing video data, can also be used to handle page turn over operation, and when promptly playing the PPT document, the user can carry out page turning and positioning action through remote controller; Can also be used for after receiving the undesirable notice of PPT document that PPT document decoder module sends, pointing out this PPT document of user undesirable.
Multimedia terminal of the present invention comprises the equipment that is similar to STB with USB port, video conference terminal, video player.
Present embodiment also provides a kind of method of playing the PPT document in the multimedia terminal, and is as shown in Figure 2, may further comprise the steps:
Step 201: the PPT document that selection will be play; The PPT document of selecting can be the PPT document that has been kept at the multimedia terminal; Also can be to be kept in the memory disc of thinking the multimedia terminal (like USB flash disk), the PPT document in this memory disc be read through the USB mouth in the multimedia terminal;
Step 202: access rights, file size, the PPT version number of this PPT document at first analyzed in the multimedia terminal, and undesirable then execution in step 206 is if meet the requirements then execution in step 203;
Step 203: resolve the content of PPT document, comprise the coordinate information of information such as Main stream (comprised entry block number), Picture stream (having comprised all pictures), Document stream (having comprised the relevant information of literal), Summary information stream (summary info that has comprised document), Current Userstream (information that has comprised the active user) and literal, picture at the place page;
Step 204: with the data message buffer memory that parses, can but be not limited to according to page up, current page, the data and the buffer memory of the rule parsing PPT page of one page down, to improve display efficiency.If the terminal memory headroom is enough, also can be with all page one parsing and buffer memory;
Step 205: encode and play according to the current actual needs of video conference terminal.Two kinds of situation of general branch:
During local the broadcast, data in buffer information is encoded to the video of YUV or rgb format, directly plays in this locality.
When need be when current other video conference terminal that participates in a conference be play; Video format according to the current support of meeting; Data in buffer information is encoded to the video of YUV or rgb format; Send to other video conference terminal then, other video conference terminal as required again with the video coding that receives as H.263, H.264, MPEG etc. meets the video format of video conference standard;
In the playing process as required through up and down page turning or jump to specified page of remote controller.If the paging storage then repeats above step 204 and step 205 after the page turning.
Step 206: prompting user this PPT document is undesirable and abandon playing.
Claims (8)
1. multimedia terminal of playing the PPT document, it is characterized in that: the software environment of PPT document is not play-overed in said multimedia terminal, comprises PPT document decoder module, cache module, coding module, transmit control module;
Said PPT document decoder module is used to resolve the PPT document content, and stores the PPT document content that parses into cache module;
The PPT document content that said cache module is used to receive and storing and resolving goes out;
Said coding module is used for reading the data message of cache module, generates the video of RGB or yuv format;
Said transmit control module is used for the video of RGB that the received code module sends or yuv format and with its broadcast.
2. multimedia terminal as claimed in claim 1 is characterized in that:
Said coding module also is used for need when other video conference terminal is play, the RGB that generates or the video of yuv format being sent to said other video conference terminal when said PPT document.
3. multimedia terminal as claimed in claim 1 is characterized in that:
Said PPT document decoder module also is used to analyze PPT document access authority, file size, PPT version number, and the undesirable transmit control module of then notifying points out the user undesirable, meets the requirements and resolves said PPT document again;
Said transmit control module is used to also receive that the said PPT document of said undesirable notice back prompting user is undesirable.
4. multimedia terminal as claimed in claim 1 is characterized in that:
Said PPT document decoder module is resolved the PPT document content and is meant; Read institutional framework, the copyright information of said PPT document, every page Word message, pictorial information; Reorganize data structure according to the affiliated page, parse entry block number, pictorial information, Word message, summary info, the active user's of PPT document information and said Word message, pictorial information coordinate information at the place page.
5. method of playing the PPT document in the multimedia terminal; It is characterized in that: the software environment of PPT document is not play-overed in the multimedia terminal; Buffer memory behind the said multimedia terminal parsing PPT document content generates the PPT document content of buffer memory the video and the broadcast of required RGB in multimedia terminal or yuv format then.
6. method as claimed in claim 5 is characterized in that, also comprises:
When needs when other video conference terminal is play, said multimedia terminal sends to said other video conference terminal with the RGB that generates or the video of yuv format.
7. method as claimed in claim 5 is characterized in that, also comprises:
PPT document access authority, file size, PPT version number are analyzed in said multimedia terminal, undesirablely show that then the said PPT document of user is undesirable, meet the requirements and resolve said PPT document again.
8. method as claimed in claim 5 is characterized in that:
Said multimedia terminal is resolved the PPT document content and is meant; Read institutional framework, the copyright information of said PPT document, every page Word message, pictorial information; Reorganize data structure according to the affiliated page, parse entry block number, pictorial information, Word message, summary info, the active user's of PPT document information and said Word message, pictorial information coordinate information at the place page.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101775327A CN101741587B (en) | 2008-11-18 | 2008-11-18 | Multimedia terminal playing PPT and method for playing PPT thereon |
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| CN2008101775327A CN101741587B (en) | 2008-11-18 | 2008-11-18 | Multimedia terminal playing PPT and method for playing PPT thereon |
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| CN101741587A CN101741587A (en) | 2010-06-16 |
| CN101741587B true CN101741587B (en) | 2012-05-23 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102682072A (en) * | 2012-03-08 | 2012-09-19 | 上海摩软通讯技术有限公司 | Data processing method and system for multimedia documents |
| CN103384346B (en) * | 2012-12-28 | 2016-09-28 | 深圳海联讯科技股份有限公司 | A kind of method and device of PPT file process |
| CN106027950A (en) * | 2016-07-22 | 2016-10-12 | 微云（武汉）科技有限公司 | Video conference realization method, video conference server and video conference realization system |
| CN112073810B (en) * | 2020-11-16 | 2021-02-02 | 全时云商务服务股份有限公司 | Multi-layout cloud conference recording method and system and readable storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1845500A (en) * | 2005-04-06 | 2006-10-11 | 华为技术有限公司 | Realization system and method for lecture file using net broadcasted slide |
| CN101094382A (en) * | 2007-07-12 | 2007-12-26 | 杭州华三通信技术有限公司 | Video terminal, user interface, and method for playing back accessorial stream |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1845500A (en) * | 2005-04-06 | 2006-10-11 | 华为技术有限公司 | Realization system and method for lecture file using net broadcasted slide |
| CN101094382A (en) * | 2007-07-12 | 2007-12-26 | 杭州华三通信技术有限公司 | Video terminal, user interface, and method for playing back accessorial stream |
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