vector<vector<AUDIO_DATA_TYPE>> allMixingSounds

在C语言中，没有直接的内置容器类型像C++中的`vector`。但是，我们可以使用指针和动态分配的内存来模拟二维数组。以下是使用C语言实现`vector<vector<AUDIO_DATA_TYPE>>`的示例代码：

#include <stdio.h>
#include <stdlib.h>
#include <limits.h>

typedef short AUDIO_DATA_TYPE;

typedef struct {
    AUDIO_DATA_TYPE* data;
    size_t size;
} Vector;

typedef struct {
    Vector* data;
    size_t size;
} VectorVector;

void initVector(Vector* vec) {
    vec->data = NULL;
    vec->size = 0;
}

void pushBackVector(Vector* vec, AUDIO_DATA_TYPE value) {
    vec->data = realloc(vec->data, (vec->size + 1) * sizeof(AUDIO_DATA_TYPE));
    vec->data[vec->size] = value;
    vec->size++;
}

void initVectorVector(VectorVector* vecVec) {
    vecVec->data = NULL;
    vecVec->size = 0;
}

void pushBackVectorVector(VectorVector* vecVec, Vector vec) {
    vecVec->data = realloc(vecVec->data, (vecVec->size + 1) * sizeof(Vector));
    vecVec->data[vecVec->size] = vec;
    vecVec->size++;
}

void freeVector(Vector* vec) {
    free(vec->data);
}

void freeVectorVector(VectorVector* vecVec) {
    for (size_t i = 0; i < vecVec->size; i++) {
        freeVector(&(vecVec->data[i]));
    }
    free(vecVec->data);
}

void MixSoundsBySimplyAdd(VectorVector allMixingSounds,
	DWORD RawDataCnt,
	Vector* __pRawDataBuffer)
{
    typedef int WIDEN_TEMP_TYPE;
    const WIDEN_TEMP_TYPE AUDIO_DATA_TYPE_MAX = SHRT_MAX;
    const WIDEN_TEMP_TYPE AUDIO_DATA_TYPE_MIN = SHRT_MIN;

	WIDEN_TEMP_TYPE Sum = 0;

	for (int i = 0; i < RawDataCnt; ++i)
	{
		Sum = 0;
		for (int wavNum = 0; wavNum < allMixingSounds.size; ++wavNum)
		{
			Sum += allMixingSounds.data[wavNum].data[i];
		}

		if (Sum > AUDIO_DATA_TYPE_MAX)
			Sum = AUDIO_DATA_TYPE_MAX;
		else if (Sum < AUDIO_DATA_TYPE_MIN)
			Sum = AUDIO_DATA_TYPE_MIN;

		pushBackVector(__pRawDataBuffer, AUDIO_DATA_TYPE(Sum));
	}
}

int main() {
    VectorVector allMixingSounds;
    initVectorVector(&allMixingSounds);

    // 添加数据到allMixingSounds
    Vector vec1;
    initVector(&vec1);
    pushBackVector(&vec1, 1);
    pushBackVector(&vec1, 2);
    pushBackVector(&vec1, 3);
    pushBackVectorVector(&allMixingSounds, vec1);

    Vector vec2;
    initVector(&vec2);
    pushBackVector(&vec2, 4);
    pushBackVector(&vec2, 5);
    pushBackVector(&vec2, 6);
    pushBackVectorVector(&allMixingSounds, vec2);

    // 创建输出缓冲区
    Vector rawDataBuffer;
    initVector(&rawDataBuffer);

    // 调用MixSoundsBySimplyAdd函数
    MixSoundsBySimplyAdd(allMixingSounds, 3, &rawDataBuffer);

    // 输出结果
    for (int i = 0; i < rawDataBuffer.size; i++) {
        printf("%d ", rawDataBuffer.data[i]);
    }
    printf("\n");

    // 释放内存
    freeVectorVector(&allMixingSounds);
    freeVector(&rawDataBuffer);

    return 0;
}

以上代码演示了如何使用指针和动态分配的内存来模拟`vector<vector<AUDIO_DATA_TYPE>>`。你可以根据自己的需求进行修改和调整。请注意，在使用完后，需要对动态分配的内存进行释放，以避免内存泄漏。