Hololens拍照，录像，保存到本地，读取图片和视频
工程地址：
https://download.csdn.net/download/shanguuncle/10548611
可到群文件下载
1.拍照
拍照API https://docs.unity3d.com/Manual/windowsholographic-photocapture.html
可以在编辑器模式下拍照
PhotoCapture.CreateAsync(false, OnPhotoCaptureCreated);
第一个参数布尔值是否拍摄全息画面，如果只拍摄摄像头就false，拍摄全息就true
public PhotoCapture photoCaptureObj = null;
List imageBufferList = new List();
CameraParameters cameraParameters;
public void TakePhoto()
{
ShowImage.gameObject.SetActive(true);
#if UNITY_EDITOR || UNITY_WSA
PhotoCapture.CreateAsync(false, OnPhotoCaptureCreated);
#else
#endif
}
void OnPhotoCaptureCreated(PhotoCapture captureObject)
{
photoCaptureObj = captureObject;
Resolution cameraResolution = PhotoCapture.SupportedResolutions.OrderByDescending((res) => res.width * res.height).First();
cameraParameters = new CameraParameters();
cameraParameters.hologramOpacity = 0.0f;
cameraParameters.cameraResolutionHeight = cameraResolution.height;
cameraParameters.cameraResolutionWidth = cameraResolution.width;
cameraParameters.pixelFormat = CapturePixelFormat.BGRA32;
captureObject.StartPhotoModeAsync(cameraParameters, OnPhotoModeStarted);
}
private void OnPhotoModeStarted(PhotoCapture.PhotoCaptureResult result)
{
if (result.success)
{
photoCaptureObj.TakePhotoAsync(OnCaptturePhotoToMemory);
Debug.Log("拍照成功");
}
else
{
//重新拍照
// PhotoCapture.CreateAsync(false, OnPhotoCaptureCreated);
Debug.Log("重新拍照");
}
}
void OnCaptturePhotoToMemory(PhotoCapture.PhotoCaptureResult result, PhotoCaptureFrame photoCaptureFrame)
{
if (result.success)
{
//照片显示
photoCaptureFrame.CopyRawImageDataIntoBuffer(imageBufferList);
imageBufferList = FlipVertical(imageBufferList, cameraParameters.cameraResolutionWidth, cameraParameters.cameraResolutionHeight, 4);
targetTexture = CreateTexture(imageBufferList, cameraParameters.cameraResolutionWidth, cameraParameters.cameraResolutionHeight);
ShowImage.sprite = Sprite.Create(targetTexture, new Rect(0, 0, targetTexture.width, targetTexture.height), new Vector2(0.5f, 0.5f));
}
photoCaptureObj.StopPhotoModeAsync(OnStoppedPhotoMode);
}
void OnStoppedPhotoMode(PhotoCapture.PhotoCaptureResult result)
{
photoCaptureObj.Dispose();
photoCaptureObj = null;
}
private Texture2D CreateTexture(List rawData, int width, int height)
{
Texture2D tex = new Texture2D(width, height, TextureFormat.BGRA32, false);
tex.LoadRawTextureData(rawData.ToArray());
tex.Apply();
return tex;
}
///
/// 照片上下反转
///
///
///
///
///
/// FlipVertical(List src, int width, int height, int stride)
{
byte[] dst = new byte[src.Count];
for (int y = 0; y < height; ++y)
{
for (int x = 0; x < width; ++x)
{
int invY = (height - 1) - y;
int pxel = (y * width + x) * stride;
int invPxel = (invY * width + x) * stride;
for (int i = 0; i < stride; ++i)
{
dst[invPxel + i] = src[pxel + i];
}
}
}
return new List(dst);
} 保存图片到本地
public void SavePhoto()
{
//Texture2D tex = new Texture2D(Screen.width, Screen.height, TextureFormat.RGB24, true);
//tex.Apply();
SavenPic(targetTexture,"test");
VideoImage.gameObject.SetActive(false);
ShowImage.gameObject.SetActive(false);
}
public void SavenPic(Texture2D tex, string filename)
{
try
{
string path = Application.persistentDataPath + "/" + filename + ".jpg";
File.WriteAllBytes(path, tex.EncodeToJPG());
ShowImage.sprite = null;
print("保存成功！" + path);
}
catch (System.Exception e)
{
print("保存失败！" + e.Message);
}
}读取图片
public void ShowPhoto()
{
VideoImage.gameObject.SetActive(false);
ShowImage.gameObject.SetActive(true);
StartCoroutine(LoadPic("test"));
}
private IEnumerator LoadPic(string picname)
{
string path = Application.persistentDataPath + "/" + picname + ".jpg" ;
if (File.Exists(path))
{
WWW www = new WWW("file:///" + path);
yield return www;
//获取Texture
Texture2D dynaPic = www.texture;
ShowImage.sprite = Sprite.Create(dynaPic, new Rect(0, 0, dynaPic.width, dynaPic.height), new Vector2(0.5f, 0.5f));
print("读取成功");
}
else
{
print("图片不存在！");
}
}2.录像
录像API https://docs.unity3d.com/Manual/windowsholographic-videocapture.html
编辑器模式下不可用，只有在Hololens上能使用
VideoCapture m_VideoCapture = null;
bool isRecording;
public void StopVideo()
{
if (isRecording)
{
isRecording = false;
print("停止录像...");
if(Application.platform==RuntimePlatform.WSAPlayerX86)
m_VideoCapture.StopRecordingAsync(OnStoppedRecordingVideo);
}
}
public void TakeVideo()
{
VideoImage.gameObject.SetActive(false);
ShowImage.gameObject.SetActive(false);
if (!isRecording)
{
isRecording = true;
print("开始录像...");
if (Application.platform == RuntimePlatform.WSAPlayerX86)
VideoCapture.CreateAsync(false, StartVideoCapture);
}
} void StartVideoCapture(VideoCapture videoCapture)
{
if (videoCapture != null)
{
m_VideoCapture = videoCapture;
Debug.Log("Created VideoCapture Instance!");
Resolution cameraResolution = VideoCapture.SupportedResolutions.OrderByDescending((res) => res.width * res.height).First();
float cameraFramerate = VideoCapture.GetSupportedFrameRatesForResolution(cameraResolution).OrderByDescending((fps) => fps).First();
Debug.Log("刷新率：" + cameraFramerate);
CameraParameters cameraParameters = new CameraParameters();
cameraParameters.hologramOpacity = 0.0f;
cameraParameters.frameRate = cameraFramerate;
cameraParameters.cameraResolutionWidth = cameraResolution.width;
cameraParameters.cameraResolutionHeight = cameraResolution.height;
cameraParameters.pixelFormat = CapturePixelFormat.BGRA32;
m_VideoCapture.StartVideoModeAsync(cameraParameters,
VideoCapture.AudioState.ApplicationAndMicAudio,
OnStartedVideoCaptureMode);
}
else
{
Debug.LogError("Failed to create VideoCapture Instance!");
}
}
void OnStartedVideoCaptureMode(VideoCapture.VideoCaptureResult result)
{
Debug.Log("开始录像模式!");
//string timeStamp = Time.time.ToString().Replace(".", "").Replace(":", "");
//string filename = string.Format("TestVideo_{0}.mp4", timeStamp);
string filename = "TestVideo.mp4";
string filepath = Path.Combine(Application.persistentDataPath, filename);
filepath = filepath.Replace("/", @"\");
m_VideoCapture.StartRecordingAsync(filepath, OnStartedRecordingVideo);
print("videopath:"+ filepath);
}
void OnStoppedVideoCaptureMode(VideoCapture.VideoCaptureResult result)
{
m_VideoCapture.Dispose();
m_VideoCapture = null;
Debug.Log("停止录像模式!");
}
void OnStartedRecordingVideo(VideoCapture.VideoCaptureResult result)
{
Debug.Log("开始录像!");
}
void OnStoppedRecordingVideo(VideoCapture.VideoCaptureResult result)
{
Debug.Log("停止录像!");
m_VideoCapture.StopVideoModeAsync(OnStoppedVideoCaptureMode);
}播放录制的视频
public void PlayVideo()
{
if (File.Exists(Application.persistentDataPath + "/TestVideo.mp4"))
{
VideoImage.gameObject.SetActive(true);
ShowImage.gameObject.SetActive(false);
print("播放视频...");
VideoImage.url = "file:///" + Application.persistentDataPath + "/TestVideo.mp4";
VideoImage.Play();
}
else
{
print("视频不存在！");
}
}3.打包勾选权限
打包需勾选摄像头和麦克风权限
Player settings->Capabilities
Hololens运行截图
