CN1801913A - Universal video player - Google Patents
Universal video player Download PDFInfo
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- CN1801913A CN1801913A CN 200510061852 CN200510061852A CN1801913A CN 1801913 A CN1801913 A CN 1801913A CN 200510061852 CN200510061852 CN 200510061852 CN 200510061852 A CN200510061852 A CN 200510061852A CN 1801913 A CN1801913 A CN 1801913A
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- video decoder
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Abstract
Present invention refers to universal video playing unit containing control part, which includes input part and separation part, video decoder and audio decoder, video output and audio output part. Said invention has good hard ware software platform transplanted ability,it has fine medium processing interface, user can embed audio video decoder, effect processor according to appliance demand, and can develop out PXA WinCE ARM 9 / Embedded Linux TI TMS 320 DM 270 / bare-chip video playing unit, said Video decoder can provide high efficiency decode course according to equipment selecting output colour space with simple structure and high delivery efficiency.
Description
Technical field
The present invention relates to a kind of player.
Background technology
Current video media play technology is unprecedentedly used, and this technology all can be used in the field that almost relates to information technology.The DirectX technology that Microsoft company of Microsoft releases has promoted the video playback broad application greatly, and nearly all video player all is based on DirectX SDK exploitation on the desktop computer.But the binary system DirectX SDK that the Microsoft of Microsoft provides can only developing operation on the player of x86CPU and Windows operating system, can not operate on other platform.
Society is the epoch of a carry-on amusement now, the iPod walkman of Apple, the PS2 game machine of Sony, to listen mobile phone that MP3 also can play Java Game etc. all be hot masterpiece, yet there are a kind of carry-on amusement equipment to obtain paying attention in recent years again, promptly be portable media player PMP (Portable Media Player), PMP combines liquid crystal micro display and hard disk, but browsing pictures, displaying video, even can see TV, listen to the radio, integrate multimedia video.The hardware architecture of this type systematic varies: the i.MX21 ARM926EJ-S of Freescale Freescale, i.MX31 ARM11; The PNX0101/0102 ARM7TDMI of Philip Philips; The TMS320DM270 of the TI of Texas Instrument TI DSP6000; The PXA255 of Intel, PXA270 XScale; The Alchemy Au1200 MIPS32 of AMD; The PNX1500 of Philips multimedia processor TriMedia DSP.The software platform of this type systematic is also multifarious: real time operating systems such as vxWorks, Embedded Linux, RTEMS, WinCE are adopted in a large number by different developers.The DirectX SDK of Microsoft can not use on these platforms, presses for a kind of general open video player framework and can operate in these systems.
Summary of the invention
The purpose of this invention is to provide a kind of universal video player that is not subjected to hardware platform and software platform restriction.
The objective of the invention is to realize: comprise control assembly, input block that reads input medium and the separating component that input medium is decomposed are set by following proposal; At the separating component output Video Decoder and audio decoder are set; The video output block of different video equipment unified interface is provided in the setting of Video Decoder output; The audio output part of different audio frequency apparatus unified interface is provided in the setting of audio decoder output.
The present invention has the good ability of striding hardware platform and software platform transplanting.Simple clear modular construction can make things convenient for the client that special audio frequency and video effect process algorithm is integrated in this framework.And good medium Processing Interface is arranged, the user can embed all kinds of audio/video decoders, surround processor according to the needs of application scenario.And can successfully develop video player on PXA/WinCE, ARM9/Embedded Linux, the TI TMS320DM270/ nude film.Because video equipment can provide the interface in different colours space, so Video Decoder can be according to the color space of choice of equipment output, thereby can provide decode procedure the most efficiently, reduce the time that consumes on color space conversion.The parts of universal video player are few, and are simple in structure, and the data passes number of times is few, can raise the efficiency.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the schematic flow sheet of the Play Control circulation of control assembly.
Embodiment
With reference to Fig. 1, Fig. 2, the present invention is made up of control assembly 1, input block 2, separating component 3, Video Decoder 4, audio decoder 5, video output block 6 and audio output part 7.
Input block 2 reads the medium (file, system standard input, VCD, DVD, network or the like) of input, and the information that input block 2 need be known is the size, retrieval, byte of buffer memory or reading and control function of size block arbitrarily.The information of describing inlet flow comprises deviation post in the handle of file, stream type, sector-size, cache size, current location, the file, the network address, the thread number of high-speed cache, the control structure (comprising network flow state, buffer memory, bandwidth, stream read information) and the distinctive information of input medium of network flow.Can visit the data in the inlet flow of opening by this structure.
Separating component 3 resolves into audio frequency, video and DVD captions passage with the medium of input, and the function of buffer memory is provided for each passage.Separating component 3 is at first realized a basic framework, and this framework provides unified interface to all media formats, realizes resolver for some specific formats then.The information of describing resolver comprises the distinctive information of pointer, form of current location in inlet flow pointer, the inlet flow, file format, resolver type, audio frequency, video and DVD captions resolution flow.
Video Decoder 4 at separating component 3 outputs is responsible for respectively the data decode of video and voice-grade channel is become video flowing and audio stream with audio decoder 5.
6 pairs of different video equipments of video output block at Video Decoder 4 outputs provide a unified interface.The descriptor of video output comprises RGB output function, the YUV output function of equipment, the OSD output function of equipment, the screen-refresh function of equipment, the device shutdown function of picture output device descriptor, device initialize function, equipment disposition function, Equipment Control function, equipment.
7 pairs of different audio frequency apparatuses of audio output part at audio decoder 5 outputs provide unified interface.The descriptor of audio frequency output comprise audio frequency apparatus descriptor, equipment initialization, close, the restarting, play of control function, equipment, suspend and play, suspend recovery function, the acquisition remaining space of equipment, the function of reproduction time.
As long as the third party follows API and data-interface standard, can be easily come in the each several part assembly is integrated.
The effect of control assembly 1 links together each module exactly, and keeps audio-visual synchronization.Simultaneously mutual with user control program, finish the control of player user to player.The shape library that user control program and system are adopted is closely related.Typically the Play Control circulation process is as shown in Figure 2:
By realizing this universal video player framework, can solve those problems that run in the medium processing equally, this player can also be transplanted on the different operating system platform easily simultaneously, because the part that operating system is relevant all is hidden in control assembly 1, input block 2, below the video output block 6, the general framework of audio output part 7, only need rewrite these parts relevant during transplanting with platform.Video Decoder 4 and audio decoder 5 provide unified interface, so the third party can provide new decoder for player easily, existing decoder also can be reused by the interface that universal video player is provided, and video player can be supported current nearly all file format like this.
Claims (1)
1, a kind of universal video player comprises control assembly (1), it is characterized in that: input block (2) that reads input medium and the separating component (3) that input medium is decomposed are set; At separating component (3) output Video Decoder (4) and audio decoder (5) are set; The video output block (6) of different video equipment unified interface is provided in Video Decoder (4) output setting; The audio output part (7) of different audio frequency apparatus unified interface is provided in audio decoder (5) output setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510061852 CN1801913A (en) | 2005-12-06 | 2005-12-06 | Universal video player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510061852 CN1801913A (en) | 2005-12-06 | 2005-12-06 | Universal video player |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1801913A true CN1801913A (en) | 2006-07-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510061852 Pending CN1801913A (en) | 2005-12-06 | 2005-12-06 | Universal video player |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1801913A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102129370A (en) * | 2011-01-12 | 2011-07-20 | 福州瑞芯微电子有限公司 | Universal multimedia player frame |
| CN102169708A (en) * | 2011-03-03 | 2011-08-31 | 深圳市融创天下科技发展有限公司 | Audio and video play system, method, mobile terminal and player |
| WO2017177802A1 (en) * | 2016-04-15 | 2017-10-19 | 中兴通讯股份有限公司 | Audio/video playback method and apparatus, and computer storage medium |
-
2005
- 2005-12-06 CN CN 200510061852 patent/CN1801913A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102129370A (en) * | 2011-01-12 | 2011-07-20 | 福州瑞芯微电子有限公司 | Universal multimedia player frame |
| CN102129370B (en) * | 2011-01-12 | 2013-05-22 | 福州瑞芯微电子有限公司 | Universal multimedia player frame |
| CN102169708A (en) * | 2011-03-03 | 2011-08-31 | 深圳市融创天下科技发展有限公司 | Audio and video play system, method, mobile terminal and player |
| WO2017177802A1 (en) * | 2016-04-15 | 2017-10-19 | 中兴通讯股份有限公司 | Audio/video playback method and apparatus, and computer storage medium |
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