g729编解码的总结（2）

自己的g729代码在测试的时候，出现了错误，是自己以前没注意的地方，所以，要明白一点：只要是没解决的问题，就不是小问题。

自己修改了很多程序，可是老是通不过，自己最后才想到修改源码，然后成功了。下面是自己的源码，希望对大家有帮助吧。

int CG729aDec::G729aDec_Init(void){for (Word16 i = 0; i < M; i++){m_synth_buf[i] = 0;}m_synth = m_synth_buf + M;m_bad_lsf = 0;          /* Initialize bad LSF indicator */Init_Decod_ld8a();Init_Post_Filter();Init_Post_Process();return 0;}int CG729aDec::G729aDec_Decode(char *szInBuf, int nInBufLen, char *szOutBuf, int& nOutBufLen){char* sample = szInBuf;m_number = 0;while (sample - szInBuf <nInBufLen){memcpy(m_serial, sample, SERIAL_SIZE);bits2prm_ld8k(m_serial, &m_parm[1]);/* the hardware detects frame erasures by checking if all bitsare set to zero */m_parm[0] = 0;  /* 假设没有丢帧 */m_parm[4] = 0; /* 假设数据效验正常 */Decod_ld8a(m_parm, m_synth, m_Az_dec, m_T2);Post_Filter(m_synth, m_Az_dec, m_T2);        /* Post-filter */Post_Process(m_synth, L_FRAME);memcpy(szOutBuf + m_number*L_FRAME*2, (char*)m_synth, L_FRAME * 2);sample += SERIAL_SIZE;m_number++;}nOutBufLen = m_number*L_FRAME * 2;sample = NULL;return 0;}