3gp中的gsm的amr编解码C语言源码和协议-The gsm of amr 3gp codec C language source code and protocols

ldpc码的编解码实现，GSM中GMSK调制信号的产生，从先验概率中采样，计算权重。- Codec ldpc code implementation GSM is GMSK modulation signal generation, Sampling a priori probability, calculate the weight.