CN103248926B - Set-top box for internet protocol television - Google Patents
Set-top box for internet protocol television Download PDFInfo
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- CN103248926B CN103248926B CN201310170623.9A CN201310170623A CN103248926B CN 103248926 B CN103248926 B CN 103248926B CN 201310170623 A CN201310170623 A CN 201310170623A CN 103248926 B CN103248926 B CN 103248926B
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Abstract
The invention discloses a set-top box for an internet protocol television, which comprises a processor, a tuner, a voice frequency D/A convertor, an infrared receiving processor, an allocation module, a storage module, and an SWF (Small Web Format) encoder, wherein the tuner is connected with the processor, the tuner amplifies a weak video signal and sends processed anamorphose and disturbance caused by unstable transmission to the processor; the infrared receiving processor is connected with the processor for receiving the instruction of the remote controller, and sending the received instruction to the processor; the SWF encoder is connected with the processor for processing SWF files; the voice frequency D/A convertor is connected with the processor to convert the sound signal into an identifiable signal and send the signal to an internet protocol television; the storage module is connected with the processor to store the buffered information; and the allocation module is connected with the processor. According to the scheme provided by the invention, the SWF encoder which can play SWF file is arranged in the set-top box.
Description
Technical field
The present invention relates to a kind of improvement of Set Top Box, refer in particular to a kind of IPTV that can play SWF file and use
Set Top Box.
Background technology
IPTV, is a kind of using broadband cable net, multiple skills such as collection internet, multimedia, communication
Art, in one, provides the brand-new technology of the multiple interactive services including DTV to domestic consumer.Existing interaction
The Set Top Box of formula Web TV does not support SWF file, for this reason, we have developed a kind of interactive mode that can play SWF file
The Set Top Box of Web TV.
Content of the invention
The invention aims to overcoming the deficiencies in the prior art and providing a kind of interactive net that can play SWF file
The Set Top Box of network TV.
For reaching above-mentioned purpose, the technical solution used in the present invention is：A kind of Set Top Box of IPTV, bag
Containing processor, tuner, audio D/A converter, infrared receiver processor, distribute module, memory module, SWF encoder；Described
Tuner is connected with processor, faint vision signal is amplified by described tuner, and to transmitting unstable causing
Anamorphose and interference are sent to processor after being processed；Described infrared receiver processor is connected with processor, for receiving
The instruction of remote control, and the instruction receiving is sent to processor；Described SWF encoder is connected with processor, for processing
SWF file；Described audio D/A converter is connected with processor, in order to convert audio signals into discernible signal and to be transported to
IPTV machine；Described memory module is connected with processor, in order to store buffer information；Described distribute module and process
Device is connected.
Preferably, described SWF encoder, comprises application layer, decoding layer, hardware platform layer；Described application layer, hardware platform
Layer is connected with decoding layer respectively；Described application layer is used for realizing the initialization of playing function, controls playing flow；Described hardware is put down
Platform layer is used for platform transplantation；Described decoding layer, comprises Component Gallery, parsing module, management module, play control module, audio frequency, regards
Frequency decoder module, AS engine, rendering engine；Described Component Gallery is connected with play control module, and for realizing storage, management has
The animated element of tag definition, and enable the relation foundation of related dictionary and control table；Described parsing module controls with playing
Module is connected, and for SWF file decoding, completes the parsing work of FLASH document；Described management module and play control module phase
Even, for the information of management storage, using control instruction, information is operated；Described audio frequency, Video decoding module and broadcasting
Control module is connected, for being decoded to audio frequency, video file；Described AS engine is connected with play control module, Neng Goushi
Now parsing, running script；Described rendering engine is connected with play control module and audio frequency, Video decoding module；For reality
Rendering and filling of existing picture, the animated element specified in display list and display properties render corresponding bitmap, real
The now final display of a complete frame picture.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages：
The Set Top Box of the IPTV of the present invention program is provided with SWF encoder, can play SWF file.
Brief description
Below in conjunction with the accompanying drawings technical solution of the present invention is described further：
Accompanying drawing 1 is the fundamental diagram of the Set Top Box of IPTV of the present invention；
Accompanying drawing 2 is the fundamental diagram of the SWF decoder in the Set Top Box of IPTV of the present invention；
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.
Accompanying drawing 1-2 is a kind of Set Top Box of IPTV of the present invention, comprise processor, tuner,
Audio D/A converter, infrared receiver processor, distribute module, memory module, SWF encoder；Described tuner and processor phase
Even, faint vision signal is amplified by described tuner, and to transmit the unstable anamorphose causing with disturb into
Row is sent to processor after processing；Described infrared receiver processor is connected with processor, for receiving the instruction of remote control, and will
The instruction receiving sends processor to；Described SWF encoder is connected with processor, for processing SWF file；Described audio frequency D/
A converter is connected with processor, in order to convert audio signals into discernible signal and to be transported to IPTV machine；Institute
State memory module to be connected with processor, in order to store buffer information；Described distribute module is connected with processor；Described SWF coding
Device, comprises application layer, decoding layer, hardware platform layer；Described application layer, hardware platform layer are connected with decoding layer respectively；Described should
It is used for realizing the initialization of playing function, controlled playing flow with layer；Described hardware platform layer is used for platform transplantation；Described decoding
Layer, comprises Component Gallery, parsing module, management module, play control module, audio frequency, Video decoding module, AS engine, renders and draws
Hold up；Described Component Gallery is connected with play control module, and for realizing storage, management has the animated element of tag definition, and energy
The relation realizing related dictionary with control table is set up；Described parsing module is connected with play control module, for SWF file solution
Code, completes the parsing work of FLASH document；Described management module is connected with play control module, for the information of management storage,
Using control instruction, information is operated；Described audio frequency, Video decoding module are connected with play control module, for sound
Frequently, video file is decoded；Described AS engine is connected with play control module, is capable of parsing, running script
（ActionScript script）；Described rendering engine is connected with play control module and audio frequency, Video decoding module；For realizing
Rendering and filling of picture, the animated element specified and display properties renders corresponding bitmap, realize in display list
The final display of a complete frame picture.
The technical characterstic of SWF encoder：
（1）Matrix operation fixed point
SWF file is related to 3 coordinate systems, i.e. A, B, C, and renderer path is：
1) former SWF file is A
（1）
2）Define the original size of SWF file, i.e. B.Figure is represented at this by PlaceObject2 tag definition matrix M
The positional information of coordinate.I.e.
（2）
3）If the final display of FLASH with originally adopted different, it is C that final display defines coordinate system, is expressed as with matrix N：
（3）
It is unit using twip when coordinate system is changed, and each element becomes one 65536 to round to obtain, that is,：
（4）
By optimized algorithm, the volume matrix multiplication element after fixed point is pressed in hgher efficiency.
（2）Interframe is multiplexed
It is continuous, continual that the interframe of FLASH animation is play, as long as can update frame buffer on the basis of former frame
Region, you can to obtain a new two field picture, reduces hardware and takies resource.But in order to reduce the calculating section needing to render,
Efficient interframe multiplex technique must be adopted, broadcasting speed is provided.
If two frames change in front and back, to be controlled by PlaceObject2 and RemoveObject2.Execute every frame
This two labels when marquis it is necessary to by the display portion of this layer and film definition partly intersect rectangular area be added to
clipbounds.If this layer occurred in former frame, this layer of old region also must be recorded.Finally will be corresponding for this frame
Clipbounds record combination, is formed most non-overlapping rectangular areas, is improved by this interframe multiplex technique and understand
Code efficiency.
（3）Filling algorithm
Present design specifically has following features using filling optimized algorithm, filling algorithm：
1）Decoder, when being decoded to each figure, is mapped relevant position information and scan line and builds up
Table, all vectors that this scan line can be intersected by this table are chained up.
2）Each element in query display list, if scan line is intersected with this element, element and scan line set up side
Table.
3）To this Sorted Edge table, by the size sequence of each of which side and scan line intersection point, and cover every Sorted Edge table.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages：
The Set Top Box of the IPTV of the present invention program is provided with SWF encoder, can play SWF file.
Above-described embodiment only technology design to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and is carried out, and can not be limited the scope of the invention with this, all according to the present invention
Equivalence changes or modification that Spirit Essence is made, all should cover within the scope of the present invention.
Claims (1)
1. a kind of Set Top Box of IPTV, comprise processor, tuner, audio D/A converter, at infrared receiver
Reason device, distribute module, memory module, SWF encoder；Described tuner is connected with processor, and faint is regarded by described tuner
Frequency signal is amplified, and is sent to processor to transmitting after the unstable anamorphose causing is processed with interference；Institute
State infrared receiver processor to be connected with processor, for receiving the instruction of remote control, and the instruction receiving is sent to process
Device；It is characterized in that：Described SWF encoder is connected with processor, for processing SWF file；Described audio D/A converter and place
Reason device is connected, in order to convert audio signals into discernible signal and to be transported to IPTV machine；Described memory module
It is connected with processor, in order to store buffer information；Described distribute module is connected with processor；Described SWF encoder, comprises to apply
Layer, decoding layer, hardware platform layer；Described application layer, hardware platform layer are connected with decoding layer respectively；Described application layer is used for realizing
The initialization of playing function, control playing flow；Described hardware platform layer moves to for platform；Described decoding layer, comprises assembly
Storehouse, parsing module, management module, play control module, audio frequency, Video decoding module, AS engine, rendering engine；Described assembly
Storehouse is connected with play control module, and for realizing storage, management has the animated element of tag definition, and enables related dictionary
Set up with the relation of control table；Described parsing module is connected with play control module, for SWF file decoding, completes FLASH literary composition
The parsing work of shelves；Described management module is connected with play control module, for the information of management storage, using control instruction pair
Information is operated；Described audio frequency, Video decoding module are connected with play control module, for carrying out to audio frequency, video file
Decoding；Described AS engine is connected with play control module, is capable of parsing, running script；Described rendering engine with broadcast
Put control module to be connected with audio frequency, Video decoding module；For realizing rendering and filling of picture, by specify in display list
Animated element and display properties, render corresponding bitmap, realize the final display of a complete frame picture；Described SWF coding
Device, using filling optimized algorithm, comprises the steps：
（1）Decoder, when being decoded to each figure, is mapped opposite position information and scan line and builds up table,
All vectors that this scan line can be intersected by this table are chained up；
（2）Each element in query display list, if scan line is intersected with this element, element and scan line set up side table；
（3）Step（2）In side table be Sorted Edge table, this Sorted Edge table is pressed with the big float of each of which side and scan line intersection point
Sequence, and cover every Sorted Edge table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310170623.9A CN103248926B (en) | 2013-05-10 | 2013-05-10 | Set-top box for internet protocol television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310170623.9A CN103248926B (en) | 2013-05-10 | 2013-05-10 | Set-top box for internet protocol television |
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| Publication Number | Publication Date |
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| CN103248926A CN103248926A (en) | 2013-08-14 |
| CN103248926B true CN103248926B (en) | 2017-02-22 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101304521A (en) * | 2008-06-19 | 2008-11-12 | 上海交通大学 | Mobile phone television play method based on Flash technique |
| CN101753793A (en) * | 2010-01-29 | 2010-06-23 | 四川长虹电器股份有限公司 | Method for realizing interactive interface in embedded set top box system |
| CN202019422U (en) * | 2011-01-31 | 2011-10-26 | 桂林南方通信设备工程公司 | Ground digital television set-top box |
| CN102333246A (en) * | 2011-10-19 | 2012-01-25 | 广东中大讯通软件科技有限公司 | User interface system based on Flash middleware of set top box |
| CN202143182U (en) * | 2011-07-20 | 2012-02-08 | 苏州工业职业技术学院 | IPTV set top box |
-
2013
- 2013-05-10 CN CN201310170623.9A patent/CN103248926B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101304521A (en) * | 2008-06-19 | 2008-11-12 | 上海交通大学 | Mobile phone television play method based on Flash technique |
| CN101753793A (en) * | 2010-01-29 | 2010-06-23 | 四川长虹电器股份有限公司 | Method for realizing interactive interface in embedded set top box system |
| CN202019422U (en) * | 2011-01-31 | 2011-10-26 | 桂林南方通信设备工程公司 | Ground digital television set-top box |
| CN202143182U (en) * | 2011-07-20 | 2012-02-08 | 苏州工业职业技术学院 | IPTV set top box |
| CN102333246A (en) * | 2011-10-19 | 2012-01-25 | 广东中大讯通软件科技有限公司 | User interface system based on Flash middleware of set top box |
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| CN103248926A (en) | 2013-08-14 |
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