1.链接说明

ms_filter_link(stream->soundread,0,stream->ec,0);ms_filter_link(stream->ec,0,stream->encoder,0); //inputs[0] 将数据链接到0ms_filter_link(stream->decoder,0,stream->ec,1);ms_filter_link(stream->ec,1,stream->soundwrite,0);//inputs[1]将数据链接到1

2.数据读取

while((tmp=ms_queue_get(f->inputs[1]))!=NULL){    //拿回inputs[1]数据  是从soundread来的    log_error("save_voice tmp.pcm");    inputlen=msgdsize(tmp);    memcpy(tmpinput,tmp->b_rptr,inputlen);    save_voice(voicetmp,tmpinput,inputlen);   //save_voice(voicetmp,tmp->b_rptr,msgdsize(tmp));    ile++;    ce=allocb(inputlen,0);    memcpy(ce->b_rptr, tmp->b_rptr, inputlen);    ce->b_wptr+=inputlen;    ms_queue_put(f->outputs[1],ce);    freemsg(tmp);}while((im=ms_queue_get(f->inputs[0]))!=NULL){    int len=msgdsize(im);//拿回inputs[0]数据   是从decoder来的

3.接口说明

MSFilterDesc ms_webrtc_aec_desc={    MS_WEBRTC_AEC_ID,    "MSWebRTCAEC",    "Echo canceller using WebRTC library.",    MS_FILTER_OTHER,    "AEC",    2,  //两进两出  ipnuts[0]和inputs[1]    2,    webrtc_aec_init,    webrtc_aec_preprocess,    webrtc_aec_process,    webrtc_aec_postprocess,    webrtc_aec_uninit,    webrtc_aec_methods,    0};