直接将来自网络摄像机的视频录制到磁盘上。
最终视频录制内容将以 MP4 格式存储在文件系统上。
下面的示例将录制 5 秒视频并存储到文件系统上。
using UnityEngine; using System.Collections; using System.Linq; using UnityEngine.XR.WSA.WebCam;
public class VideoCaptureExample : MonoBehaviour { static readonly float MaxRecordingTime = 5.0f;
VideoCapture m_VideoCapture = null; float m_stopRecordingTimer = float.MaxValue;
// Use this for initialization void Start() { StartVideoCaptureTest(); }
void Update() { if (m_VideoCapture == null || !m_VideoCapture.IsRecording) { return; }
if (Time.time > m_stopRecordingTimer) { m_VideoCapture.StopRecordingAsync(OnStoppedRecordingVideo); } }
void StartVideoCaptureTest() { Resolution cameraResolution = VideoCapture.SupportedResolutions.OrderByDescending((res) => res.width * res.height).First(); Debug.Log(cameraResolution);
float cameraFramerate = VideoCapture.GetSupportedFrameRatesForResolution(cameraResolution).OrderByDescending((fps) => fps).First(); Debug.Log(cameraFramerate);
VideoCapture.CreateAsync(false, delegate(VideoCapture videoCapture) { if (videoCapture != null) { m_VideoCapture = videoCapture; Debug.Log("Created VideoCapture Instance!");
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("Started Video Capture Mode!"); string timeStamp = Time.time.ToString().Replace(".", "").Replace(":", ""); string filename = string.Format("TestVideo_{0}.mp4", timeStamp); string filepath = System.IO.Path.Combine(Application.persistentDataPath, filename); filepath = filepath.Replace("/", @"\"); m_VideoCapture.StartRecordingAsync(filepath, OnStartedRecordingVideo); }
void OnStoppedVideoCaptureMode(VideoCapture.VideoCaptureResult result) { Debug.Log("Stopped Video Capture Mode!"); }
void OnStartedRecordingVideo(VideoCapture.VideoCaptureResult result) { Debug.Log("Started Recording Video!"); m_stopRecordingTimer = Time.time + MaxRecordingTime; }
void OnStoppedRecordingVideo(VideoCapture.VideoCaptureResult result) { Debug.Log("Stopped Recording Video!"); m_VideoCapture.StopVideoModeAsync(OnStoppedVideoCaptureMode); } }
SupportedResolutions | 用于录制视频的所有受支持的设备分辨率列表。 |
IsRecording | 指示 VideoCapture 实例当前是否在录制视频。 |
Dispose | 必须调用 Dispose 来关闭 PhotoCapture 实例。 |
GetUnsafePointerToVideoDeviceController | 为原生 IVideoDeviceController 提供 COM 指针。 |
StartRecordingAsync | 将来自网络摄像机的视频异步录制到文件系统中。 |
StartVideoModeAsync | 异步启动视频模式。 |
StopRecordingAsync | 异步停止将来自网络摄像机的视频录制到文件系统。 |
StopVideoModeAsync | 异步停止视频模式。 |
CreateAsync | 异步创建 VideoCapture 对象的实例,该实例可将来自网络摄像机的视频录制到磁盘上。 |
GetSupportedFrameRatesForResolution | 返回可让系统以给定分辨率录制视频的受支持的帧率。 |
OnStartedRecordingVideoCallback | 在网络摄像机开始录制视频时调用。 |
OnStoppedRecordingVideoCallback | 在视频录制内容被保存到文件系统时调用。 |
OnVideoCaptureResourceCreatedCallback | 在创建 VideoCapture 资源时调用。 |
OnVideoModeStartedCallback | 在视频模式启动时调用。 |
OnVideoModeStoppedCallback | 在视频模式停止时调用。 |