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TV program making system and method with double-bit rate video stream

A technology of video streaming and double bit rate, applied in the field of producing TV programs, can solve the problems of large investment, large amount of data, and large bandwidth occupied by video signals, and achieve the effect of reducing maintenance costs, saving bandwidth and saving network investment.

Inactive Publication Date: 2003-03-19
BEIJING DAYANG TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the existing TV program production network uses video data with a single bit rate, and the data volume of high-quality video signals is very large, it takes up a lot of bandwidth to transmit video signals, and all workstations must use fiber channel network connections to meet their bandwidth. need
In addition, since editing workstations directly edit high-bit-rate data with a large amount of data, a high-performance dedicated editing machine with hardware board support is required to be competent, which results in expensive network and special equipment, requiring a large amount of investment

Method used

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  • TV program making system and method with double-bit rate video stream
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  • TV program making system and method with double-bit rate video stream

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Embodiment Construction

[0022] Refer below figure 2 and 3 A block diagram illustrating a system for processing video data using dual-rate video data streams according to an embodiment of the present invention. A video signal is output from a recorder 21 such as a tape drive, a DV camcorder, a VCD / DVD player, etc., to a Data acquisition workstation 22 . In the data collection workstation 22, according to the video system standard (for PAL, it is 720 * 576 * 25fps (frame per second), for NTSC, it is 720 * 480 * 29.9fps) and the collection parameters set by the video data collection card, with a certain The output video data stream is collected at a high speed, and the video data stream is converted into a digital video frame picture stream.

[0023] The frame picture buffer 221 in the data collection workstation 22 stores each frame picture of the collected digital video frame picture stream. The frame image copying device 222 copies the stored digital video frame images, so as to obtain the frame...

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Abstract

The present invention provides a video signal processing system to use dual code rate video stream to process the video signal, which processes the playing and recording machine of broadcasting video signal stream. It collects the video signal stream broadcasted by the playing-recording machine and divide the video signal stream into data collecting work stations of high code rate video data and low code rate data, to store the high and low code rate video data from the data collecting work stations into the video data storing device of storing sections in high code rate video data and low code rate video data separately, to pick up the low code rate video data from low code rate video data storing section in video and to edit them for creating the edition working station of data edition information list.

Description

technical field [0001] The present invention relates to a system and method for producing TV programs using dual-bit-rate video streams, especially by generating high and low bit-rate video streams, editing low-bit-rate video materials and playing them at high bit-rates to produce TV programs systems and methods. Background technique [0002] In the past, TV workers used the traditional linear editing method based on material tape to edit TV programs. This method has problems such as low efficiency, simple special effects, not rich picture forms, easy damage and destruction of material tapes, and lower quality of multi-version copy pictures. With the development of computer technology, the non-linear editing equipment stored in the form of data has been widely used to transfer the material from the tape to the storage device of the computer. This non-linear editing device solves the problems of traditional editing methods. [0003] In a nutshell, non-linear editing equipm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/14H04N5/222
Inventor 姚威邓伟陈晋苏毛烨
Owner BEIJING DAYANG TECH DEV
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