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Method and device for video-stream frame rate adaptation, and field programmable gate array chip and video stream processing apparatus
Method and device for video-stream frame rate adaptation, and field programmable gate array chip and video stream processing apparatus
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机译:视频流帧率适配的方法,装置,现场可编程门阵列芯片及视频流处理装置
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摘要
This invention provides a method and device for video-stream frame rate adaptation. The method includes: allocating a buffer space for each of at least one video conference room respectively and dividing the buffer space into at least one segment, each segment of which is used for buffering a video frame; and performing following steps for each of the at least one video conference room: generating a pulse signal for the video conference room periodically according to a certain pulse rate; and performing a data writing operation for a segment of the corresponding buffer space at an input-video-stream frame rate of the video conference room, and performing a reading operation for a segment of the buffer space at an output-video-stream frame rate. This invention also provides an FPGA chip and a video stream processing apparatus. The invention simplifies frame rate adaptation design, and reduces system processing overhead during the frame rate adaptation.
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