-
公开(公告)号:US20130202031A1
公开(公告)日:2013-08-08
申请号:US13827210
申请日:2013-03-14
Applicant: STMICROELECTRONICS PVT. LTD. , STMICROELECTRONICS SRL
Inventor: Subarna TRIPATHI , Emiliano PICCINELLI
IPC: H04N7/26
CPC classification number: H04N19/107 , H04N19/105 , H04N19/124 , H04N19/146 , H04N19/149 , H04N19/152 , H04N19/162 , H04N19/169 , H04N19/177 , H04N19/40
Abstract: A GOP-independent dynamic bit-rate controller system includes a user interface to receive one or more input parameters, a bit-rate controller and an encoder. The bit-rate controller regulates a bit-rate of an output bit-stream. The bit-rate controller includes multiple bit-rate modules to determine a bit-estimate and a quantization parameter, and a control module to calculate a convergence period based on the received input parameters and a frame rate. The control module selects a bit rate module based on the convergence period and the encoder generates the output bit-stream using the quantization parameter determined by the bit rate module.
Abstract translation: 独立于GOP的动态比特率控制器系统包括用于接收一个或多个输入参数的用户界面,比特率控制器和编码器。 比特率控制器调节输出比特流的比特率。 比特率控制器包括用于确定比特估计和量化参数的多个比特率模块,以及基于所接收的输入参数和帧速率来计算收敛周期的控制模块。 控制模块基于收敛周期选择比特率模块,并且编码器使用由比特率模块确定的量化参数来生成输出比特流。