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Code rate control method and code rate controller

A code rate control and transcoding technology, which is applied in television, electrical components, digital video signal modification, etc., can solve the problems of decoding buffers that cannot be decoded normally, and achieve the effect of suppressing overflow and ensuring normal decoding

Active Publication Date: 2012-05-30
北京数码视讯技术有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The present invention is proposed aiming at the problem that decoding cannot be normally decoded due to the overflow of the decoding buffer in the related art. Therefore, the main purpose of the present invention is to provide a code rate control method and a code rate controller to solve the above problems

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  • Code rate control method and code rate controller

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Embodiment Construction

[0015] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0016] According to an embodiment of the present invention, a code rate control method and a code rate controller are provided.

[0017] figure 1 is a flow chart of a code rate control method according to an embodiment of the present invention. Such as figure 1 As shown, the method includes the following steps:

[0018] Step S10, adding a DTS stamp to the data packet after source frame transcoding; and

[0019] Wherein, before adding the DTS stamp to the transcoded data packet of the source frame, it also includes: calculating the DTS stamp of the data packet to be sent.

[0020] Calculating the DTS stamp of the data packet to be sent includes: adjusting the DTS interval between adjacent d...

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Abstract

The invention discloses a code rate control method and a code rate controller, and the code rate control method comprises the following steps: adding a DTS stamp on a packet after source frame is transcoded; and controlling the range of output code rate based on the size of the DTS stamp. By the invention, the problem of normal decoding does not performs frequently due to overflow of a decoding buffer zone in relative technologies is solved, thus inhibiting the overflow of the decoding buffer zone and ensuring normal decoding effect of video data.

Description

technical field [0001] The present invention relates to the field of code rate control, in particular to a code rate control method and a code rate controller. Background technique [0002] The application fields of digital storage media, TV broadcasting and communication have increasing requirements for general coding methods of moving images and their accompanying audio, and the video part of the MPEG-2 standard is produced in response to such requirements. Its usefulness is that motion video data can be used as a computer-processable data form, and can be stored on various storage media, can be sent and received on existing or future networks, and can be broadcast on existing or future broadcast channels on spread. The video standard of MPEG-2 has already become a common standard applied to a wide range of bit rate, resolution, quality and service at present. [0003] Along with improving day by day of people's living standard, the demand for the kind of TV program is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/26H04N7/50H04N19/40H04N19/85
Inventor 王智
Owner 北京数码视讯技术有限公司