493 lines
18 KiB
C#
493 lines
18 KiB
C#
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using ManageLiteAV;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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namespace JianGongYun.TRTC.Components
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{
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public class TXLiteAVVideoView : Canvas, IDisposable
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{
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private bool mOccupy = false; // view 是否已被占用
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private bool mLocalView = false; // 是否为本地画面
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private bool mPause = false;
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private bool mFirstFrame = false;
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private string mUserId;
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private TRTCVideoStreamType mStreamType;
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private TRTCVideoFillMode mRenderMode = TRTCVideoFillMode.TRTCVideoFillMode_Fit; // 0：填充，1：适应
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private volatile FrameBufferInfo mArgbFrame = new FrameBufferInfo(); // 帧缓存
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// 位图缓存，防止GC频繁
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private WriteableBitmap mWriteableBitmap;
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private Int32Rect mInt32Rect;
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private Pen mPen;
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public TXLiteAVVideoView()
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{
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mPen = new Pen { Brush = Brushes.DarkGray, Thickness = 1 };
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}
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/// <summary>
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/// 设置 View 绑定参数
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/// </summary>
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/// <param name="userId">需要渲染画面的 userId，如果是本地画面，则传空字符串。</param>
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/// <param name="type">渲染类型</param>
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/// <param name="engine">TRTCCloud 实例，用户注册视频数据回调。</param>
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/// <param name="local">渲染本地画面，SDK 返回的 userId 为""</param>
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/// <returns>true：绑定成功，false：绑定失败</returns>
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public bool RegEngine(string userId, TRTCVideoStreamType type, ITRTCCloud engine, bool local = false)
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{
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if (mOccupy) return false;
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mLocalView = local;
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mUserId = userId;
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mStreamType = type;
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int count = TXLiteAVVideoViewManager.GetInstance().Count;
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if (engine != null)
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{
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if (count == 0)
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{
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engine.setLocalVideoRenderCallback(TRTCVideoPixelFormat.TRTCVideoPixelFormat_BGRA32,
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TRTCVideoBufferType.TRTCVideoBufferType_Buffer, TXLiteAVVideoViewManager.GetInstance());
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}
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if (!mLocalView)
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{
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engine.setRemoteVideoRenderCallback(userId, TRTCVideoPixelFormat.TRTCVideoPixelFormat_BGRA32,
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TRTCVideoBufferType.TRTCVideoBufferType_Buffer, TXLiteAVVideoViewManager.GetInstance());
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}
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}
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if (mLocalView)
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TXLiteAVVideoViewManager.GetInstance().AddView("", type, this);
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else
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TXLiteAVVideoViewManager.GetInstance().AddView(userId, type, this);
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lock (mArgbFrame)
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ReleaseBuffer(mArgbFrame);
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mOccupy = true;
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this.InvalidateVisual();
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return true;
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}
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/// <summary>
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/// 移除 View 绑定参数
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/// </summary>
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/// <param name="engine">TRTCCloud 实例，用户注册视频数据回调。</param>
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public void RemoveEngine(ITRTCCloud engine)
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{
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if (mLocalView)
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TXLiteAVVideoViewManager.GetInstance().RemoveView("", mStreamType, this);
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else
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TXLiteAVVideoViewManager.GetInstance().RemoveView(mUserId, mStreamType, this);
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int count = TXLiteAVVideoViewManager.GetInstance().Count;
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if (engine != null)
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{
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if (count == 0)
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{
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engine.setLocalVideoRenderCallback(TRTCVideoPixelFormat.TRTCVideoPixelFormat_Unknown,
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TRTCVideoBufferType.TRTCVideoBufferType_Unknown, null);
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}
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if (!mLocalView && !TXLiteAVVideoViewManager.GetInstance().HasUserId(mUserId))
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{
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engine.setRemoteVideoRenderCallback(mUserId, TRTCVideoPixelFormat.TRTCVideoPixelFormat_Unknown,
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TRTCVideoBufferType.TRTCVideoBufferType_Unknown, null);
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}
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}
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lock (mArgbFrame)
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ReleaseBuffer(mArgbFrame);
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mUserId = "";
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mOccupy = false;
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mLocalView = false;
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mFirstFrame = false;
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mRenderMode = TRTCVideoFillMode.TRTCVideoFillMode_Fit;
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//this.OnViewRemove?.Invoke();
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this.InvalidateVisual();
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}
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/// <summary>
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/// 设置 View 的渲染模式
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/// </summary>
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/// <param name="mode">渲染模式</param>
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public void SetRenderMode(TRTCVideoFillMode mode)
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{
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mRenderMode = mode;
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}
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/// <summary>
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/// 判断 View 是否被占用
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/// </summary>
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/// <returns>true：当前 View 已被占用，false：当前 View 未被占用</returns>
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public bool IsViewOccupy()
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{
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return mOccupy;
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}
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/// <summary>
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/// 暂停渲染，显示默认图片
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/// </summary>
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/// <param name="pause">是否暂停</param>
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public void SetPause(bool pause)
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{
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if (mPause != pause)
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{
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mPause = pause;
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if (mPause)
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{
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this.Background = new SolidColorBrush(Color.FromArgb(0xFF, 0x20, 0x20, 0x20));
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}
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else
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{
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this.Background = new SolidColorBrush(Color.FromArgb(0xFF, 0x00, 0x00, 0x00));
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// 避免刷新最后一帧数据
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lock (mArgbFrame)
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ReleaseBuffer(mArgbFrame);
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}
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this.InvalidateVisual();
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}
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}
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/// <summary>
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/// 清除所有映射信息
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/// </summary>
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public static void RemoveAllRegEngine()
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{
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TXLiteAVVideoViewManager.GetInstance().RemoveAllView();
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}
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public bool AppendVideoFrame(byte[] data, int width, int height, TRTCVideoPixelFormat videoFormat, TRTCVideoRotation rotation)
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{
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if (!mFirstFrame)
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mFirstFrame = true;
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OnRenderVideoFrameHandler?.Invoke(data, width, height);
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if (mPause)
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return false;
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if (data == null || data.Length <= 0)
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return false;
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// data 数据有误
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if (videoFormat == TRTCVideoPixelFormat.TRTCVideoPixelFormat_BGRA32 && width * height * 4 != data.Length)
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return false;
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// 暂时不支持其他 YUV 类型
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if (videoFormat == TRTCVideoPixelFormat.TRTCVideoPixelFormat_I420 && width * height * 3 / 2 != data.Length)
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return false;
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// 目前只实现了 BGRA32 的数据类型，如需其他类型请重写，并设置回调的数据类型
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if (videoFormat == TRTCVideoPixelFormat.TRTCVideoPixelFormat_BGRA32)
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{
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lock (mArgbFrame)
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{
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if (mArgbFrame.data == null || mArgbFrame.width != width || mArgbFrame.height != height)
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{
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ReleaseBuffer(mArgbFrame);
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mArgbFrame.width = width;
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mArgbFrame.height = height;
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mArgbFrame.data = new byte[data.Length];
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}
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Buffer.BlockCopy(data, 0, mArgbFrame.data, 0, (int)data.Length);
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mArgbFrame.newFrame = true;
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mArgbFrame.rotation = rotation;
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}
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}
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// 回到主线程刷新当前画面
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this.Dispatcher.Invoke(new Action(() =>
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{
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this.InvalidateVisual();
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}));
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return true;
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}
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protected override void OnRender(DrawingContext dc)
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{
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bool needDrawFrame = true;
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if (mPause)
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needDrawFrame = false;
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if (mArgbFrame.data == null)
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needDrawFrame = false;
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if (!needDrawFrame)
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{
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return;
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}
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lock (mArgbFrame)
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{
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if (mArgbFrame.data == null)
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return;
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if (mRenderMode == TRTCVideoFillMode.TRTCVideoFillMode_Fill)
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{
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RenderFillMode(dc, mArgbFrame.data, mArgbFrame.width, mArgbFrame.height, (int)mArgbFrame.rotation * 90);
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}
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else if (mRenderMode == TRTCVideoFillMode.TRTCVideoFillMode_Fit)
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{
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RenderFitMode(dc, mArgbFrame.data, mArgbFrame.width, mArgbFrame.height, (int)mArgbFrame.rotation * 90);
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}
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}
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}
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//public event Action<WriteableBitmap> OnRenderVideoFrameHandler;
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/// <summary>
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/// 渲染回调byte[] data,int width, int height
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/// </summary>
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public event Action<byte[], int, int> OnRenderVideoFrameHandler;
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//public event Action OnViewRemove;
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private void RenderFillMode(DrawingContext dc, byte[] data, int width, int height, int rotation)
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{
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int viewWidth = (int)this.ActualWidth, viewHeight = (int)this.ActualHeight;
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PixelFormat pixelFormat = PixelFormats.Pbgra32;
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int bytesPerPixel = (pixelFormat.BitsPerPixel + 7) / 8;
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int stride = bytesPerPixel * width;
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if (mWriteableBitmap == null || mWriteableBitmap.PixelWidth != width || mWriteableBitmap.PixelHeight != height)
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{
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mWriteableBitmap = new WriteableBitmap(width, height, 96, 96, pixelFormat, null);
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mInt32Rect = new Int32Rect(0, 0, width, height);
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}
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mWriteableBitmap.Lock();
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Marshal.Copy(data, 0, mWriteableBitmap.BackBuffer, data.Length);
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mWriteableBitmap.AddDirtyRect(mInt32Rect);
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mWriteableBitmap.Unlock();
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ImageBrush brush = new ImageBrush(mWriteableBitmap);
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if (rotation > 0)
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{
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Matrix transform = Matrix.Identity;
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double scale = (double)viewWidth / (double)viewHeight;
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if (rotation == 90 || rotation == 270)
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transform.ScaleAt(scale, scale, 0.5, 0.5);
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transform.RotateAt(rotation, 0.5, 0.5);
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brush.RelativeTransform = new MatrixTransform(transform);
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}
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brush.Stretch = Stretch.UniformToFill;
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Rect rect = new Rect(0, 0, viewWidth, viewHeight);
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dc.DrawRectangle(brush, mPen, rect);
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}
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private void RenderFitMode(DrawingContext dc, byte[] data, int width, int height, int rotation)
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{
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int viewWidth = (int)this.ActualWidth, viewHeight = (int)this.ActualHeight;
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PixelFormat pixelFormat = PixelFormats.Pbgra32;
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int bytesPerPixel = (pixelFormat.BitsPerPixel + 7) / 8;
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int stride = bytesPerPixel * width;
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if (mWriteableBitmap == null || mWriteableBitmap.PixelWidth != width || mWriteableBitmap.PixelHeight != height)
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{
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mWriteableBitmap = new WriteableBitmap(width, height, 96, 96, pixelFormat, null);
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mInt32Rect = new Int32Rect(0, 0, width, height);
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}
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mWriteableBitmap.Lock();
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Marshal.Copy(data, 0, mWriteableBitmap.BackBuffer, data.Length);
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mWriteableBitmap.AddDirtyRect(mInt32Rect);
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mWriteableBitmap.Unlock();
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//OnRenderVideoFrameHandler?.Invoke(mWriteableBitmap);
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ImageBrush brush = new ImageBrush(mWriteableBitmap);
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if (rotation > 0)
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{
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Matrix transform = Matrix.Identity;
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double scale = (double)viewHeight / (double)viewWidth;
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if (rotation == 90 || rotation == 270)
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transform.ScaleAt(1, scale, 0.5, 0.5);
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transform.RotateAt(rotation, 0.5, 0.5);
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brush.RelativeTransform = new MatrixTransform(transform);
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}
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brush.Stretch = Stretch.Uniform;
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Rect rect = new Rect(0, 0, viewWidth, viewHeight);
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dc.DrawRectangle(brush, mPen, rect);
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}
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private void ReleaseBuffer(FrameBufferInfo info)
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{
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if (info.data != null)
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info.data = null;
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info.width = 0;
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info.height = 0;
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info.newFrame = false;
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info.rotation = TRTCVideoRotation.TRTCVideoRotation0;
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}
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#region Dispose
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private bool disposed = false;
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public void Dispose()
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{
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this.Dispose(true);
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GC.SuppressFinalize(this);
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}
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protected virtual void Dispose(bool disposing)
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{
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if (disposed) return;
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if (disposing)
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{
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ReleaseBuffer(mArgbFrame);
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mWriteableBitmap = null;
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}
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disposed = true;
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}
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~TXLiteAVVideoView()
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{
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this.Dispose(false);
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}
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#endregion
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}
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public class TXLiteAVVideoViewManager : ITRTCVideoRenderCallback
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{
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private volatile Dictionary<string, TXLiteAVVideoView> mMapViews;
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public static TXLiteAVVideoViewManager sInstance;
|
|||
|
|
|
|||
|
|
private static Object mLocker = new Object();
|
|||
|
|
|
|||
|
|
public static TXLiteAVVideoViewManager GetInstance()
|
|||
|
|
{
|
|||
|
|
if (sInstance == null)
|
|||
|
|
{
|
|||
|
|
lock (mLocker)
|
|||
|
|
{
|
|||
|
|
if (sInstance == null)
|
|||
|
|
sInstance = new TXLiteAVVideoViewManager();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
return sInstance;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private TXLiteAVVideoViewManager()
|
|||
|
|
{
|
|||
|
|
mMapViews = new Dictionary<string, TXLiteAVVideoView>();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private string GetKey(string userId, TRTCVideoStreamType type)
|
|||
|
|
{
|
|||
|
|
return String.Format("{0}_{1}", userId, type);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 主要用于判断当前 user 是否还有存在流画面，存在则不移除监听。
|
|||
|
|
public bool HasUserId(string userId)
|
|||
|
|
{
|
|||
|
|
bool exit = false;
|
|||
|
|
lock (mMapViews)
|
|||
|
|
{
|
|||
|
|
exit = mMapViews.ContainsKey(GetKey(userId, TRTCVideoStreamType.TRTCVideoStreamTypeBig)) ||
|
|||
|
|
mMapViews.ContainsKey(GetKey(userId, TRTCVideoStreamType.TRTCVideoStreamTypeSub));
|
|||
|
|
}
|
|||
|
|
return exit;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public void AddView(string userId, TRTCVideoStreamType type, TXLiteAVVideoView view)
|
|||
|
|
{
|
|||
|
|
lock (mMapViews)
|
|||
|
|
{
|
|||
|
|
bool find = false;
|
|||
|
|
foreach (var item in mMapViews)
|
|||
|
|
{
|
|||
|
|
if (item.Key.Equals(GetKey(userId, type)))
|
|||
|
|
{
|
|||
|
|
find = true;
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
if (!find)
|
|||
|
|
{
|
|||
|
|
mMapViews.Add(GetKey(userId, type), view);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public void RemoveView(string userId, TRTCVideoStreamType type, TXLiteAVVideoView view)
|
|||
|
|
{
|
|||
|
|
lock (mMapViews)
|
|||
|
|
{
|
|||
|
|
foreach (var item in mMapViews.ToList())
|
|||
|
|
{
|
|||
|
|
if (item.Key.Equals(GetKey(userId, type)))
|
|||
|
|
{
|
|||
|
|
if (item.Value != null)
|
|||
|
|
{
|
|||
|
|
item.Value.Dispose();
|
|||
|
|
}
|
|||
|
|
mMapViews.Remove(item.Key);
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public void RemoveAllView()
|
|||
|
|
{
|
|||
|
|
lock (mMapViews)
|
|||
|
|
mMapViews.Clear();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public int Count
|
|||
|
|
{
|
|||
|
|
get
|
|||
|
|
{
|
|||
|
|
lock (mMapViews)
|
|||
|
|
return mMapViews.Count;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//public event Action<string, TRTCVideoStreamType, TRTCVideoFrame> OnRenderVideoFrameHandler;
|
|||
|
|
/// <summary>
|
|||
|
|
/// 自定义渲染回调，只能存在一个回调
|
|||
|
|
/// </summary>
|
|||
|
|
/// <param name="userId"></param>
|
|||
|
|
/// <param name="streamType"></param>
|
|||
|
|
/// <param name="frame"></param>
|
|||
|
|
public void onRenderVideoFrame(string userId, TRTCVideoStreamType streamType, TRTCVideoFrame frame)
|
|||
|
|
{
|
|||
|
|
//OnRenderVideoFrameHandler?.Invoke(userId, streamType, frame);
|
|||
|
|
// 大小视频是占一个视频位，底层支持动态切换。
|
|||
|
|
if (streamType == TRTCVideoStreamType.TRTCVideoStreamTypeSmall)
|
|||
|
|
streamType = TRTCVideoStreamType.TRTCVideoStreamTypeBig;
|
|||
|
|
TXLiteAVVideoView view = null;
|
|||
|
|
lock (mMapViews)
|
|||
|
|
{
|
|||
|
|
foreach (var item in mMapViews)
|
|||
|
|
{
|
|||
|
|
if (item.Key.Equals(GetKey(userId, streamType)) && item.Value != null)
|
|||
|
|
{
|
|||
|
|
view = item.Value;
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
if (view != null)
|
|||
|
|
view.AppendVideoFrame(frame.data, (int)frame.width, (int)frame.height, frame.videoFormat, frame.rotation);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
class FrameBufferInfo
|
|||
|
|
{
|
|||
|
|
public byte[] data { get; set; }
|
|||
|
|
|
|||
|
|
public int width { get; set; }
|
|||
|
|
|
|||
|
|
public int height { get; set; }
|
|||
|
|
|
|||
|
|
public bool newFrame { get; set; }
|
|||
|
|
|
|||
|
|
public TRTCVideoRotation rotation { get; set; }
|
|||
|
|
|
|||
|
|
public FrameBufferInfo()
|
|||
|
|
{
|
|||
|
|
rotation = TRTCVideoRotation.TRTCVideoRotation0;
|
|||
|
|
newFrame = false;
|
|||
|
|
width = 0;
|
|||
|
|
height = 0;
|
|||
|
|
data = null;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|