An input stream processing method and device based on IP transmission
A processing method and processing device technology, applied in the field of IP transmission, can solve the problems of uncertain delay and jitter in IP transmission, inability to stabilize audio and video decoding at the decoding end, and inability to support clock recovery well, so as to achieve reliable audio and video decoding, The effect of reasonable space allocation
Active Publication Date: 2019-06-07
HUIZHOU WELLAV TECH
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Problems solved by technology
[0002] With the development of science and technology, the way of IP transmission is more and more widely used. For video and audio communication based on IP transmission, it is usually encoded by the encoder and transmitted to the decoder for decoding. However, due to the disadvantages of IP transmission The certain delay and jitter make it impossible for the decoding end to perform stable and reliable audio and video decoding, and the IP transmission cannot normally perform TR101290 analysis on the IP-based data stream through the TR101290 PCR jitter and PCR drift problems, and cannot well support for Clock Recovery for Decoding Systems
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[0042] In order to describe the technical solutions of the present invention in detail, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0043] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used herein are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" i...
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The invention relates to the technical field of IP transmission, and particularly discloses an input stream processing method and device based on IP transmission, and the method comprises the steps: adjusting the time slice length of an input stream to a preset length time slice, and obtaining the average code rate Delta Ri of the preset length time slice; gradually shortening The time duration ofthe preset length time slice, and meanwhile monitoring fluctuation of the average code rate Delta Ri of the preset length time slice; If the fluctuation of the average code rate Delta Ri of the preset length time slice of the current time length exceeds a preset threshold value, stopping shortening the time length of the preset length time slice, and setting the preset length time slice of the previous time length as a minimum stable time slice; According to the method, the channel cache space is adjusted according to the basic characteristics of the input flow and the minimum stable time slice, a channel code rate distribution mechanism matched with compensation can be provided, reasonable space distribution is achieved in a limited space, the code rate of an encoder is well reduced, andit is guaranteed that a decoding end can stably and reliably decode audios and videos.
Description
technical field [0001] The present invention relates to the technical field of IP transmission, in particular to an input stream processing method and processing device based on IP transmission. Background technique [0002] With the development of science and technology, the way of IP transmission is more and more widely used. For video and audio communication based on IP transmission, it is usually encoded by the encoder and transmitted to the decoder for decoding. However, due to the disadvantages of IP transmission The certain delay and jitter make it impossible for the decoding end to perform stable and reliable audio and video decoding, and the IP transmission cannot normally perform TR101290 analysis on the IP-based data stream through the TR101290 PCR jitter and PCR drift problems, and cannot well support for A system that recovers the clock for decoding. Contents of the invention [0003] The invention provides an input stream processing method and processing dev...
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Login to View More IPC IPC(8): H04N21/845H04N21/231H04N21/234H04N21/233H04N21/433H04N21/4335H04N21/439H04N21/44
Inventor 邹伟华江锐黄化吉袁金保
Owner HUIZHOU WELLAV TECH