rtc_plugins/rtc_plugins.cpp

#include <boost/python/module.hpp>
#include <boost/python/def.hpp>
#define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION
#include <numpy/arrayobject.h>
#include <stdio.h>


#include "./util/RTCContext.h"
namespace py = boost::python;

int init(const char* selfUserId, const char* selfDisplayName, const char* selfRoomId, boost::python::object callback) {
    RTCContext::instance().setPyCallback(callback);
    bool res = RTCContext::instance().init(selfUserId, selfDisplayName, selfRoomId);
    if (res) {
        return 0;
    } else {
        return -1;
    }
}
int initRecv(const char* destRoomId, const char* srcUserId, const int16_t destChannelIndex) {
    bool res = RTCContext::instance().initRecv(destRoomId, srcUserId, destChannelIndex);
    if (res) {
        return 0;
    } else {
        return -1;
    }
}
int initSend(const char* destRoomId, const int16_t destChannelIndex) {
    bool res = RTCContext::instance().initSend(destRoomId, destChannelIndex);
    if (res) {
        return 0;
    } else {
        return -1;
    }
}
py::object create_numpy_array() {
    // 确保已调用 import_array()
    if (PyArray_API == nullptr) {
        throw std::runtime_error("NumPy API not initialized");
    }

    // 创建数组
    npy_intp dims[1] = {4};
    int32_t data[4] = {1, 2, 3, 4};

    PyObject* py_array = PyArray_SimpleNewFromData(1, dims, NPY_INT32, data);
    if (!py_array) {
        throw std::runtime_error("Failed to create NumPy array");
    }

    return py::object(py::handle<>(py_array));
}

int sendCustomAudioData(const int16_t destChannelIndex, py::object pD, int32_t sampleRate, uint64_t channelNum,
                        uint64_t dataLen) {
    try {
        py::object pyData = create_numpy_array();
        std::cout << "step 1" << std::endl;
        // 1. 检查输入有效性
        if (pyData.ptr() == nullptr) {
            throw std::runtime_error("Input data is NULL");
        }

        std::cout << "step 2" << std::endl;
        std::cout << "pyData ptr is:" << pyData.ptr() << std::endl;
        if (!pyData.ptr() || !Py_IsInitialized() || !PyObject_TypeCheck(pyData.ptr(), &PyBaseObject_Type)) {
            throw std::runtime_error("Invalid Python object");
        }
        std::cout << "step 2" << std::endl;
        // 2. 检查是否是 numpy 数组
        if (!PyArray_Check(pyData.ptr())) {
            std::cout << "input is notnumpy" << std::endl;
            throw std::runtime_error("Input is not a numpy array");
        }

        std::cout << "step 3" << std::endl;
        // 3. 转换为 PyArrayObject
        PyArrayObject* npArray = reinterpret_cast<PyArrayObject*>(pyData.ptr());

        std::cout << "step 4" << std::endl;
        // 4. 检查数据类型是否为 int16
        if (PyArray_TYPE(npArray) != NPY_INT16) {
            throw std::runtime_error("Array must be of type int16 (np.int16)");
        }

        std::cout << "step 5" << std::endl;
        // 5. 检查数据是否连续
        if (!PyArray_ISCONTIGUOUS(npArray)) {
            throw std::runtime_error("Array must be contiguous in memory");
        }
        std::cout << "step 6" << std::endl;

        // 6. 获取数据指针
        void* dataPtr = PyArray_DATA(npArray);
        if (dataPtr == nullptr) {
            throw std::runtime_error("Invalid data pointer");
        }
        std::cout << "step 7" << std::endl;
        return RTCContext::instance().sendCustomAudioData(destChannelIndex, dataPtr, sampleRate, channelNum, dataLen);

    } catch (const std::exception& e) {
        std::cout << "error:" << e.what() << std::endl;
        return -1;
    }
}

BOOST_PYTHON_MODULE(rtc_plugins) {
    py::def("init", &init);
    py::def("initRecv", &initRecv);
    py::def("initSend", &initSend);
    py::def("sendCustomAudioData", &sendCustomAudioData);
}