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。 |
Did you find this page useful? Please give it a rating:
Thanks for rating this page!
What kind of problem would you like to report?
Thanks for letting us know! This page has been marked for review based on your feedback.
If you have time, you can provide more information to help us fix the problem faster.
Provide more information
You've told us this page needs code samples. If you'd like to help us further, you could provide a code sample, or tell us about what kind of code sample you'd like to see:
You've told us there are code samples on this page which don't work. If you know how to fix it, or have something better we could use instead, please let us know:
You've told us there is information missing from this page. Please tell us more about what's missing:
You've told us there is incorrect information on this page. If you know what we should change to make it correct, please tell us:
You've told us this page has unclear or confusing information. Please tell us more about what you found unclear or confusing, or let us know how we could make it clearer:
You've told us there is a spelling or grammar error on this page. Please tell us what's wrong:
You've told us this page has a problem. Please tell us more about what's wrong:
Thank you for helping to make the Unity documentation better!
Your feedback has been submitted as a ticket for our documentation team to review.
We are not able to reply to every ticket submitted.