请问音频编码时所用的内存会跟视频分配的内存冲突吗？

1.sample_audio.c中最开始的初始化为：
        memset(&stVbConf, 0, sizeof(VB_CONF_S));
        s32Ret = SAMPLE_COMM_SYS_Init(&stVbConf);
2.sample_venc.c中最开始的初始化为：
    memset(&stVbConf,0,sizeof(VB_CONF_S));

    u32BlkSize = SAMPLE_COMM_SYS_CalcPicVbBlkSize(gs_enNorm,\
                PIC_HD1080, SAMPLE_PIXEL_FORMAT, SAMPLE_SYS_ALIGN_WIDTH);
    stVbConf.u32MaxPoolCnt = 128;

    /*ddr0 video buffer*/
    stVbConf.astCommPool[0].u32BlkSize = u32BlkSize;
    stVbConf.astCommPool[0].u32BlkCnt = u32ViChnCnt * 24;//u32ViChnCnt * 16;
    memset(stVbConf.astCommPool[0].acMmzName,0,
        sizeof(stVbConf.astCommPool[0].acMmzName));

    /*ddr0 hist buf*/
    stVbConf.astCommPool[1].u32BlkSize = (384*4);//(196*4);
    stVbConf.astCommPool[1].u32BlkCnt = u32ViChnCnt * 24;//u32ViChnCnt * 16;
    memset(stVbConf.astCommPool[1].acMmzName,0,
        sizeof(stVbConf.astCommPool[1].acMmzName));

    /*ddr1 video buffer*/
    stVbConf.astCommPool[2].u32BlkSize = u32BlkSize;
    stVbConf.astCommPool[2].u32BlkCnt = u32ViChnCnt * 24;//u32ViChnCnt * 16;
    strcpy(stVbConf.astCommPool[2].acMmzName,"ddr1");

    /*ddr1 hist buf*/
    stVbConf.astCommPool[3].u32BlkSize = (384*4);//(196*4);
    stVbConf.astCommPool[3].u32BlkCnt = u32ViChnCnt * 24;//u32ViChnCnt * 16;
    strcpy(stVbConf.astCommPool[3].acMmzName,"ddr1");

    s32Ret = SAMPLE_COMM_SYS_Init(&stVbConf);

3.假设同时使用音视频编码，此时他们分配的内存会冲突吗？