控制kinect v2以10hz的频率采集1920*1080像素的彩色视频并保存在指定路径的C#代码
时间: 2024-06-10 15:07:47 浏览: 15
# 用C语言如何控制Kinect V2实现每秒10次采集分辨率为1920*1080的彩色视频,并保存在指定路径?
首先要确保已经安装好Kinect V2相关的SDK,然后以下是具体实现步骤:
1. 初始化Kinect V2,创建Sensor对象
```
HRESULT hr = GetDefaultKinectSensor(&m_pKinectSensor);
if (FAILED(hr)) {
printf("Failed GetDefaultKinectSensor");
return hr;
}
hr = m_pKinectSensor->Open();
if (FAILED(hr)) {
printf("Failed Open KinectSensor");
return hr;
}
```
2. 初始化彩色帧源对象
```
IColorFrameSource* pColorFrameSource = nullptr;
hr = m_pKinectSensor->get_ColorFrameSource(&pColorFrameSource);
if (FAILED(hr)) {
printf("Failed get ColorFrameSource");
return hr;
}
```
3. 打开彩色帧读取器
```
IColorFrameReader* pColorFrameReader = nullptr;
hr = pColorFrameSource->OpenReader(&pColorFrameReader);
if (FAILED(hr)) {
printf("Failed OpenReader");
return hr;
}
```
4. 创建彩色帧描述对象
```
IFrameDescription* pColorFrameDescription = nullptr;
hr = pColorFrameSource->get_FrameDescription(&pColorFrameDescription);
if (FAILED(hr)) {
printf("Failed get FrameDescription");
return hr;
}
```
5. 获取输出视频文件路径
```
char* filePath = "C:\output\video.mp4";
```
6. 初始化视频编码器(可以使用开源库如FFmpeg或者Windows自带的Media Foundation)
```
// 假设使用FFmpeg
avcodec_register_all();
avformat_alloc_output_context2(&formatContext, nullptr, nullptr, filePath);
outputStream = avformat_new_stream(formatContext, nullptr);
codeContext = outputStream->codec;
codeContext->pix_fmt = AV_PIX_FMT_YUV420P;
codeContext->width = 1920;
codeContext->height = 1080;
openVideoCodec(&formatContext, codeContext, outputStream);
av_dump_format(formatContext, 0, filePath, 1);
avio_open(&formatContext->pb, filePath, AVIO_FLAG_WRITE);
avformat_write_header(formatContext, nullptr);
```
7. 开始循环采集彩色帧并编码保存
```
while (!m_stop) {
IColorFrame* pColorFrame = nullptr;
HRESULT hr = pColorFrameReader->AcquireLatestFrame(&pColorFrame);
if (SUCCEEDED(hr)) {
UINT nWidth = 0, nHeight = 0;
pColorFrameDescription->get_Width(&nWidth);
pColorFrameDescription->get_Height(&nHeight);
if (nWidth == 1920 && nHeight == 1080) {
// 获取彩色帧数据
unsigned int nColorBufferSize = 0;
RGBQUAD* pColorBuffer = nullptr;
hr = pColorFrame->CopyConvertedFrameDataToArray(nColorBufferSize, reinterpret_cast<BYTE*>(pColorBuffer), ColorImageFormat_Bgra);
if (SUCCEEDED(hr)) {
// // 编码并保存彩色帧
AVFrame* pFrame = av_frame_alloc();
avpicture_fill(&yuvPicture, yuvData, AV_PIX_FMT_YUV420P, 1920, 1080);
RGBA32ToYUV420P(yuvData, pColorBuffer, 1920, 1080);
pFrame->format = AV_PIX_FMT_YUV420P;
pFrame->width = 1920;
pFrame->height = 1080;
avpicture_fill((AVPicture*)pFrame, yuvData, AV_PIX_FMT_YUV420P, 1920, 1080);
encodeVideoFrame(codeContext, pFrame, outputStream);
av_frame_free(&pFrame);
}
}
SafeRelease(pColorFrame);
}
Sleep(100); // 每100ms采集一帧
}
```
最后,别忘了在程序结束时,释放资源和关闭输出视频文件。
```
// 释放所有资源
SafeRelease(pColorFrameReader);
SafeRelease(pColorFrameSource);
SafeRelease(pColorFrameDescription);
m_pKinectSensor->Close();
SafeRelease(m_pKinectSensor);
// 关闭视频文件
av_write_trailer(formatContext);
avcodec_close(codeContext);
av_free(outputStream);
avio_close(formatContext->pb);
avformat_free_context(formatContext);
```
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