Transport stream generator

Abstract

A transport stream generator comprises an FPGA device, an SDRAM device, a crystal oscillator and a FLASH storage device, wherein the FPGA device comprises a processor interface device, an instruction parameter decoding register device, an MPEG2 data packet processing device, an SDRAM controller device, a first FIFO device, a second FIFO device, a third FIFO device, a serial / parallel converter, a PLL device, an SPI_OUT device, and an ASI_OUT device; and a data type identification device controls alternate transmission of video and audio files, and synthesizes two independent pure audio and video files into a data stream containing sound and images according to certain rules, and the MPEG2 data packet processing device performs data processing so as to provide the transport stream generatorhaving high processing speed, saving memory space, having rich program sources, and forming infinite continuous data stream without floating or damaged images or intermittent sound.

Description

technical field [0001] The invention relates to a transport stream generation device, in particular to a transport stream generation device for processing data through an FPGA. Background technique [0002] Referring to FIG. 1, an existing TS stream generator includes a main board 1, a storage bank 2, a keyboard 3, a display 4, an output interface board 5, a hard disk 6 and a power supply 7, wherein the power supply 7 is the main board 1, the storage bank 2, and the keyboard 3 , the display 4, the output interface board 5 and the hard disk 6 are powered, and the system control process is: the main board 1 reads the program data in the hard disk 6 to the storage body 2, and scans the keyboard 3 to determine whether the keyboard 3 has a program pressed, If a program is pressed, assign a new program start address to the address variable, and read a unit of data from the location specified by the address variable in memory bank 2, and send it to the output interface board 5 for ...

AI Technical Summary

Problems solved by technology

[0003] Among them, the main board 1 usually uses a single-chip microcomputer or a general-purpose processor, and the processing speed is slow. It cannot perform complex processing on the data generated by the TS, and can only output the pre-made files as they are. Therefore, the program is large in size and must be loaded with the hard disk 6. Even so, it can only hold programs with a length of 1 minute. If the program needs more than 1 minute, it can only be played in a loop through the above process, because the program cannot be processed complicatedly, and the files can only be output as they are, and cannot be combined to achieve diversity. changed, so there are fewer program sources

[0004] In order to achieve seamless loop playback, when the program is played for 1 minute (that is, when the end address is reached), TS interrupt information is inserted to notify the receiving device. Although this meets the requirements of the MPEG2 standard, the image will be damaged and the sound will be damaged when the end is spliced. Intermittent

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