CN201904086U - Device for providing H.264 real-time decoding for SD player - Google Patents
Device for providing H.264 real-time decoding for SD player Download PDFInfo
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- CN201904086U CN201904086U CN 201020651326 CN201020651326U CN201904086U CN 201904086 U CN201904086 U CN 201904086U CN 201020651326 CN201020651326 CN 201020651326 CN 201020651326 U CN201020651326 U CN 201020651326U CN 201904086 U CN201904086 U CN 201904086U
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Abstract
The utility model discloses a device for providing H.264 real-time decoding for an SD (Standard Definition) player. The device is characterized in that a USB interface is provided; a signal input/output interface is connected to the USB interface; the signal input/output interface is connected with a medium processor through a signal processing unit; and an external memory is connected with the medium processor. The device has a simple structure, can provide recognizable H.264 real-time decoding for the SD player, and enables the SD player to play high-definition video discs. Therefore, an SD player user can conveniently watch high-definition pictures without purchasing a high-definition medium.
Description
Technical field:
The utility model relates to a kind of real-time decoding device, especially a kind of simple in structure, can be the SD player the H.264 device of real-time decoding be provided.
Background technology:
At present, along with the fast development of AV industry, high definition media has entered in the common people's the life.Because what high definition media was play is the high definition video disc of H.264 encoding, and existing SD player can not be discerned H.264 coding, and existing for this reason SD player just can't be play the high definition video disc, and the user also just can't appreciate the high definition picture, sensation inconvenience.
Summary of the invention:
The utility model is can't play the technical matters of high definition video disc in order to solve existing in prior technology SD player, provides a kind of SD player that can be that the H.264 device of real-time decoding is provided.
Technical solution of the present utility model is: a kind of SD player that can be provides the H.264 device of real-time decoding, be provided with USB interface, be connected to the signal input/output interface with USB interface, the signal input/output interface joins by signal processing unit and Media Processor, is connected to external memory storage with Media Processor.
The utility model is simple in structure, can be the SD player the H.264 real-time decoding that can discern is provided, and makes the SD player can play the high definition video disc, and the user of SD player need not to purchase high definition media, just can enjoy the high definition picture, and is very convenient.
Description of drawings:
Fig. 1 is the schematic block circuit diagram of the utility model embodiment.
Embodiment:
Below in conjunction with description of drawings embodiment of the present utility model.As shown in Figure 1: be provided with USB interface, be connected to signal input/output interface (ITU-R BT.601/656 interface) with USB interface, the signal input/output interface joins with Media Processor (Hi3510 chip) by signal processing unit (A/D, D/A conversion etc.), is connected to external memory storage (SDR SDRAM or DDR SDRAM) with Media Processor.Media Processor (Hi3510 chip) is the outsourcing chip, mainly is by ARM926,32 bit DSPs, H.264 video decoding accelerator, dma controller and video output unit etc. constitute.
The course of work:
During use, the USB terminal of USB interface of the present utility model and SD player is joined, the high definition video disc of coding H.264 is inserted in the SD player.SD player master controller is delivered to Media Processor with audio, video data after by USB interface, signal input/output interface and signal processing unit processes.32 bit DSPs in the Media Processor are gathered these information, conversion, filtering, valuation, strengthen, compression, processing such as identification, then the audio/video information that disposes is written in the external memory storage by dma controller, H.264 video decoding accelerator reading images from external memory storage, and carry out estimation (inter prediction), infra-frame prediction, dct transform, quantize, entropy coding (CAVLC+Exp-Golomb), idct transform, inverse quantization, operations such as motion compensation, will meeting H.264 at last, the naked code stream and the coding reconstructed frame (as the reference frame of next frame) of agreement are written in the external memory storage.Video output unit reading images and utilize dma controller that data are sent on the signal input/output interface from external memory storage, by USB interface decoded audio/video information is sent on the player master controller at last, demonstrates the high definition portrait by display.
The picture material that video output unit reads from external memory is decided according to demands of applications, when needs carry out preview to input picture, video output unit reads original image from external memory, when needs are observed the coding effect of video encoder, video output unit reads the coding reconstructed frame from external memory, ARM926 carries out the encapsulation of protocol stack to the code stream of video encoder output, by USB port data is sent out then.
Claims (1)
1. one kind can be the SD player the H.264 device of real-time decoding is provided, it is characterized in that: be provided with USB interface, be connected to the signal input/output interface with USB interface, the signal input/output interface joins by signal processing unit and Media Processor, is connected to external memory storage with Media Processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020651326 CN201904086U (en) | 2010-12-10 | 2010-12-10 | Device for providing H.264 real-time decoding for SD player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020651326 CN201904086U (en) | 2010-12-10 | 2010-12-10 | Device for providing H.264 real-time decoding for SD player |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201904086U true CN201904086U (en) | 2011-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020651326 Expired - Fee Related CN201904086U (en) | 2010-12-10 | 2010-12-10 | Device for providing H.264 real-time decoding for SD player |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201904086U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015126643A3 (en) * | 2014-02-24 | 2015-10-15 | Sony Computer Entertainment Inc. | Methods and systems for social sharing head mounted display (hmd) content with a second screen |
-
2010
- 2010-12-10 CN CN 201020651326 patent/CN201904086U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015126643A3 (en) * | 2014-02-24 | 2015-10-15 | Sony Computer Entertainment Inc. | Methods and systems for social sharing head mounted display (hmd) content with a second screen |
| US9691181B2 (en) | 2014-02-24 | 2017-06-27 | Sony Interactive Entertainment Inc. | Methods and systems for social sharing head mounted display (HMD) content with a second screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20141210 |
|
| EXPY | Termination of patent right or utility model |