Method Decode

Modules/LiveClient/Recode.cpp:231–288

    }

    int CDecoder::Decode(AV_BUFF buff){
		char *nalu = NULL;
		h264_nalu_data(buff.pData, &nalu);
        NalType t = h264_naltype(nalu);
        switch (t)
        {
        case b_Nal:  // �ǹؼ�֡
            {
                if(!m_bFirstKey)
                    break;
                //������ڹؼ�֡û�д�������Ҫ�ȷ��͹ؼ�֡��pps�����ڹؼ�֡������յ���
                //sps��pps��ʧ������ʹ����һ�εġ�
                DecodeKeyVideo(); 
                //Log::debug("send frame");
                DecodeVideo(buff);
				m_timestamp += m_tick_gap;
            }
            break;
        case idr_Nal: // �ؼ�֡
            {
                m_pKeyFrame->clear();
                m_pKeyFrame->append_data(buff.pData, buff.nLen);
                m_nKeyPts = buff.m_pts;
                m_nKeyDts = buff.m_dts;
                //һ��sps��pps���ڹؼ�֡ǰ�棬����ʱ���ڹؼ�֡���档
                if(m_bGotPPS && m_bGotSPS)
                    DecodeKeyVideo();
            }
            break;
        case sei_Nal:
            break;
        case sps_Nal:
            {
                //Log::debug("save sps size:%d",nLen);
                CHECK_POINT_INT(m_pSPS,-1);
                m_pSPS->clear();
                m_pSPS->append_data(buff.pData, buff.nLen);
                m_bGotSPS = true;
            }
            break;
        case pps_Nal:
            {
                //Log::debug("save pps size:%d",nLen);
                CHECK_POINT_INT(m_pPPS,-1);
                m_pPPS->clear();
                m_pPPS->append_data(buff.pData, buff.nLen);
                m_bGotPPS = true;
            }
            break;
        case other:
        case unknow:
        default:
            //Log::warning("h264 nal type: %d", t);
            break;
        }

        return 0;
    }