CN104065948A - Programmable logic device special for high-definition naked eye portable three-dimensional film-television player - Google Patents

Abstract

The invention relates to a programmable logic device special for a high-definition naked eye portable three-dimensional film-television player. Three-dimensional film watching machine stereo glasses do not need to be worn, and stereo video can be watched by naked eyes. The programmable logic device comprises a power supply. An HDvideoCh1 and an HDvideoCh2 are connected with HDMIdecoder signal input ends of the HDvideoCh1 and the HDvideoCh2 through HDMIplug interfaces of the HDvideoCh1 and the HDvideoCh2 respectively. An HDMIdecoder signal output end is connected with an FPGA programmable logic device signal input end. Double-way data exchanging between a DDR2 storage, an SRAM static state random access memory, a FLASH storage and an FPGA programmable logic device is achieved. Two signal output ends of the FPGA programmable logic device are connected with MIPI4lineencoder signal input ends respectively. An MIPI4lineencoder signal output end is connected with a mobile phone screen signal input end.

Description

High definition bore hole Portable stereoscopic video player Special Purpose Programmable logical device

Technical field

The present invention relates to one can realize without wearing stereo viewer anaglyph spectacles, can realize bore hole and watch the high definition bore hole Portable stereoscopic video player Special Purpose Programmable logical device of three-dimensional video-frequency, belong to miniature three-dimensional video-frequency Play Control circuit Special Purpose Programmable logical device and manufacture field.

Background technology

1, CN203181100U, title " intelligent video analysis server ", comprise housing, it is characterized in that being provided with video encoding module in described housing, video decode module, data memory module, programmable logic device, serial communication modular, clock module and digital central processing unit, video inputs is connected with digital central processing unit by video encoding module, numeral central processing unit is connected with video output terminals by video decode module, numeral central processing unit is connected with data memory module, numeral central processing unit is connected with programmable logic device, numeral central processing unit is connected with serial communication modular, numeral central processing unit is connected with clock module.Its weak point: cannot carry out real-time 90 degree and 270 degree upsets to the high definition video steaming of input, also cannot again can't harm arrangement to each pixel in switching process, more cannot realize bore hole high definition and watch three-dimensional video-frequency.

Summary of the invention

Purpose of design: avoid the weak point in background technology, design is a kind of without wearing stereo viewer anaglyph spectacles, can realize bore hole and watch the high definition bore hole Portable stereoscopic video player Special Purpose Programmable logical device of three-dimensional video-frequency.

Design: in order to realize above-mentioned purpose of design.The application is in circuit design, multi-path HDMI interfaces or other video interface signal input parts receive high definition video steaming, multi-path HDMI interfaces or other video interface signal output parts connect respectively HDMI decoder signal input, HDMI decoder signal output connects respectively the signal input part of FPGA, adopt ultra-large field programmable gate array (FPGA), Dui Ge road vision signal walk abreast real-time decoding, storage, the upset in real time of 90 degree, process, export, ensure the synchronism of right and left eyes signal completely, avoided stroboscopic, dizzy phenomenon.The signal output part of FPGA connects respectively MIPI signal input part, MIPI signal output part connects respectively LCD Mobile phone screen interface or other video interface signal input parts, and LCD Mobile phone screen interface or other video interface signal output parts are respectively as independently right and left eyes signal output.FPGA and DDR2 bidirectional data exchange, carry out frame and deposit.FPGA and FLASH bidirectional data exchange.FPGA and SRAM bidirectional data exchange, carry out frame and deposit, and 90 degree in real time upset are processed.FPGA is provided with by key control.High definition bore hole three-dimensional video-frequency viewing equipment passes through the switching by the various video source forms of key control, the adjusting of volume, and the variation of screen intensity, and the information characters such as the pattern of selecting are added in outputting video streams, man-machine interactive operation is simple and easy to use.The input of two-way HDMI signal, also can expand to three tunnels, four tunnels or N road, or select other video interfaces except HDMI interface, the design is all suitable for.Receiving vision signal by HDMI receiver gives hardware decoded portion and decodes, owing to being high-definition video signal, data flow is very large, so adopting DDR2 to carry out frame deposits, in addition, because Mobile phone screen is perpendicular screen and HD video source is generally horizontal screen, so need 90 degree or 270 upset in real time, in upset time, is owing to being video format simultaneously, need to overturn in real time, thereby video flowing can be play smoothly, decoded signal outputs on two Mobile phone screens as right and left eyes signal independently respectively.

The present invention is compared with background technology, the design of FPGA programmable logic device, realize high definition video steaming has been carried out to real-time 90 degree and 270 degree overturn, and in switching process, each pixel can't harm to arrangement again, the object that realizes bore hole high definition and watch three-dimensional video-frequency.

Brief description of the drawings

Fig. 1 is that ultra high-definition bore hole Portable stereo video is play viewer principle schematic.。

Fig. 2 is the schematic diagram of SRAM the inside video rotary module.

Fig. 3 is the schematic diagram of video data control module.

Embodiment

Embodiment 1: with reference to accompanying drawing 1-3.A kind of high definition bore hole Portable stereoscopic video player Special Purpose Programmable logical device, in FPGA programmable logic device, SRAM the inside video rotary module function is: video data stream enters after FPGA, first through a synchronization module, data are synchronized to local clock, then by the writing module of sram, video data is write to sram, sram selects module to be used for selecting to judge which sram is current video data write actually, pass through afterwards the io control module of sram to sram1, sram2 and sram3 carry out respectively write operation, in writing, need to read the data in sram simultaneously, read the data of sram by sram read through model, this process need is through middle sram io control module, achieve frame is deposited, sram3 when what read in the time writing sram1, in writing sram2, read sram1, in writing sram3, read sram2, being controlled at the data of reading is the sram data of writing before forever, misread out overlapping or spend to exceed and write thereby ensure not have, there is afterwards output module output.In FPGA programmable logic device, video data control module function is: sram video data is out write the memory to ddr2 by ddr2 control signal afterwards, in ddr2, do buffer memory, then by ddr2 read through model, data reading is come, send two-path video data by data outputting module, note, the two-path video data of output be simultaneously and be continuous, this is also the reason of ddr2 as buffer memory, we can receive the signal of input in reading ddr2 simultaneously, so also can write ddr2, and the data that data outputting module reads out ddr2 have the buffer memory of a frame, and be right and left eyes image exchange buffer memory, thereby output realizes synchronous.

It is to be understood that: although above-described embodiment is to the mentality of designing of the present invention detailed text description of contrasting; but these text descriptions; just the simple text of mentality of designing of the present invention is described; instead of restriction to mentality of designing of the present invention; any combination, increase or amendment that does not exceed mentality of designing of the present invention, all falls within the scope of protection of the present invention.

Claims (1)

1. a high definition bore hole Portable stereoscopic video player Special Purpose Programmable logical device, it is characterized in that: in programmable logic device, SRAM the inside video rotary module function is: video data stream enters after FPGA, first through a synchronization module, data are synchronized to local clock, then by the writing module of sram, video data is write to sram, sram selects module to be used for selecting to judge which sram is current video data write actually, pass through afterwards the io control module of sram to sram1, sram2 and sram3 carry out respectively write operation, in writing, need to read the data in sram simultaneously, read the data of sram by sram read through model, this process need is through middle sram io control module, achieve frame is deposited, sram3 when what read in the time writing sram1, in writing sram2, read sram1, in writing sram3, read sram2, being controlled at the data of reading is the sram data of writing before forever, misread out overlapping or spend to exceed and write thereby ensure not have, there is afterwards output module output,

In programmable logic device, video data control module function is: sram video data is out write the memory to ddr2 by ddr2 control signal afterwards, in ddr2, do buffer memory, then by ddr2 read through model, data reading is come, send two-path video data by data outputting module, note, the two-path video data of output be simultaneously and be continuous, this is also the reason of ddr2 as buffer memory, we can receive the signal of input in reading ddr2 simultaneously, so also can write ddr2, and the data that data outputting module reads out ddr2 have the buffer memory of a frame, and be right and left eyes image exchange buffer memory, thereby output realizes synchronous.