C++ (Cpp) sp::setParameter示例

//-----------------------------------------------------------------------------
android::status_t android_fx_setParam(const android::sp<android::AudioEffect>& pFx,
        int32_t param, uint32_t paramSizeMax, void *pValue, uint32_t valueSize)
{

    android::status_t status;
    uint32_t buf32[(paramSizeMax - 1) / sizeof(uint32_t) + 1];
    effect_param_t *p = (effect_param_t *)buf32;

    p->psize = sizeof(int32_t);
    *(int32_t *)p->data = param;
    p->vsize = valueSize;
    memcpy(p->data + p->psize, pValue, p->vsize);
    status = pFx->setParameter(p);
    if (android::NO_ERROR == status) {
        status = p->status;
    }
    return status;
}

示例#2

显示文件

文件： android_Effect.cpp 项目： MIPS/frameworks-wilhelm

//-----------------------------------------------------------------------------
android::status_t android_eq_setParam(const android::sp<android::AudioEffect>& pFx,
        int32_t param, int32_t param2, void *pValue)
{
    android::status_t status;
    uint32_t buf32[(EQUALIZER_PARAM_SIZE_MAX - 1) / sizeof(uint32_t) + 1];
    effect_param_t *p = (effect_param_t *)buf32;

    p->psize = eq_paramSize(param);
    *(int32_t *)p->data = param;
    if (p->psize == 2 * sizeof(int32_t)) {
        *((int32_t *)p->data + 1) = param2;
    }
    p->vsize = eq_valueSize(param);
    memcpy(p->data + p->psize, pValue, p->vsize);
    status = pFx->setParameter(p);
    if (android::NO_ERROR == status) {
        status = p->status;
    }

    return status;
}