壹互联是网站公司吗,云南昆明做网站,泰安网站建设培训,免费手机网站商城由于工作需要#xff0c;自己封装的基于ffmpeg的视频编解码库#xff0c;显示采用了SDL库。可以播放本地文件或网络流#xff0c;支持多端口播放#xff0c;支持文字叠加#xff0c;截图、视频录制等等。 头文件代码#xff1a;
#pragma once
#ifdef __DLLEXPORT
#defin… 由于工作需要自己封装的基于ffmpeg的视频编解码库显示采用了SDL库。可以播放本地文件或网络流支持多端口播放支持文字叠加截图、视频录制等等。 头文件代码
#pragma once
#ifdef __DLLEXPORT
#define __DLL_EXP _declspec(dllexport)
#else
#define __DLL_EXP _declspec(dllimport)
#endif #include stdio.h
#include stringusing namespace std;
//录像状态
enum RecordStatus
{Idle,Recording,Stop
};//视频存储格式
enum VideoFormat
{MP4,AVI,
};//图片存储格式
enum PictureFormat
{JPEG,PNG,BMP,
};//播放器状态
enum PlayStatus
{Close,Playing,Pause
};//滤镜种类
enum FilterType
{Time,Reticle,Text,Other
};//颜色
struct RGBAColor
{BYTE R;BYTE G;BYTE B;BYTE A;
};//OSD字体属性结构体struct OSDParameter
{char* text;int fontSize; //汉字字号int fontFamily; //0黑体1楷体2宋体 3:ArialRGBAColor fontColor; //字体颜色 rgb表示RGBAColor backColor; //字体背景色 rgb表示float x; //字体坐标 x宽度百分比0-1float y; //字体坐标 y高度百分比0-1bool visible; //是否可见
};//格式enum FrameFormat{AUDIO16,RGB32,YV12,UVVY,YUVJ420P};struct FrameInfo
{int width; //画面宽单位像素。如果是音频数据则为0int height; //画面高。如果是音频数据则为0int stamp; //时标信息单位毫秒。FrameFormat format; //数据类型0AUDIO161RGB322YUV420PYV123YUVJ420P int frameRate; //实时帧率。
};/**
* 功能描述打开视频
* param nPort播放通道号[0,31]
* param url视频文件或视频流地址
* param data图像控件句柄后台录制时赋值NULL
*
* return 成功/失败
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_OpenVideo(int nPort, const char* url, const void* hWnd);/**
* 功能描述 开始播放
* param nPort播放通道号[0,31]
* param isRealTimePlay实时播放在需要实时播放时开启如播放摄像头流。为false时将按照帧率播放。
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_StartPlay(int nPort,bool isRealTimePlay);/**
* 功能描述 暂停播放
* param nPort播放通道号[0,31]
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_PausePlay(int nPort);/**
* 功能描述关闭视频释放资源
* param nPort播放通道号[0,31]
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_CloseVideo(int nPort);/**
* 功能描述设置文件播放指针的相对位置百分比
* param nPort播放通道号[0,31]
* param pos播放时间位置 0-100
* param fReleatePos0-100
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_SetPlayPos(int nPort, float fReleatePos);/**
* 功能描述播放速度控制
* param nPort播放通道号[0,31]
* param speed速度 0正常播放 11.25倍速 21.5倍速 31.75倍速 4:2倍速 50.75倍速 60.5倍速 70.25倍速
*/
extern C __declspec(dllexport) void _stdcall VideoPlayer_ChangeSpeed(int nPort, int speed);/**
* 功能描述获取当前播放时间
* param nPort播放通道号[0,31]
* return 播放时间 单位秒
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_GetPlayedTime(int nPort);/**
* 功能描述播放窗口缩放
* param nPort播放通道号[0,31]
* return 成功/失败
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_ResizeWindow(int nPort);/**
* 功能描述设置录制参数
* param nPort播放通道号[0,31]
* param fps视频帧率
* param quality图像质量0-10 越高质量越好占用内存越大设置为0时为自动码率
* param duration单个文件时长(min),默认60分钟
* param frameExtractionMode:抽帧模式 0不抽帧以fps进行编码11/2 帧率以fps/2进行抽帧(保证fps/2为整数否则会出现丢帧情况)
* param format:存储格式,默认为mp4
*
* return 成功/失败
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_SetRecordParameter(int nPort,int fps, float quality 5, int duration 60, int frameExtractionMode 0, VideoFormat format VideoFormat::MP4);/**
* 功能描述开始录制
* param nPort播放通道号[0,31]
* param path录像保存路径包含文件名
*
* return 成功/失败
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_StartRecord(int nPort, const char* path);/**
* 功能描述结束录制
* param nPort播放通道号[0,31]
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_StopRecord(int nPort);/**
* 功能描述视频截图
* param nPort播放通道号[0,31]
* param path 图像保存的路径不含后缀名
* param format图像格式默认为jpeg
*
* return 成功/失败
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_ShotImage(int nPort, const char* path, PictureFormat format PictureFormat::JPEG);/**
* 功能描述设置某一行的OSD叠加文本
* param nPort播放通道号[0,31]
* param osdIDOSD文本序号
* param paraosd属性
*
* return 成功/失败
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_SetOSDText(int nPort, int osdID, OSDParameter osdParam);/**
* 功能描述设置所有的OSD文本总共20行
* param nPort播放通道号[0,31]
* param paraosd属性
*
* return 成功/失败
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_SetAllOSDTexts(int nPort, OSDParameter osdParams[]);/**
* 功能描述清除所有OSD文本
* param nPort播放通道号[0,31]
*
* return 成功/失败
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_ClearOSDText(int nPort);/**
* 功能描述设置解码缓存队列大小
* param nPort播放通道号[0,31]
* param size默认为10设置过小会丢帧设置过大可能会导致画面延迟
*
* return 成功/失败
*/
extern C __declspec(dllexport) void _stdcall VideoPlayer_SetDecodedBufferSize(int nPort, int size);/**
* 功能描述单帧往后播放
* param nPort播放通道号[0,31]
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_NextFrame(int nPort);/**
* 功能描述单帧往前播放
* param nPort播放通道号[0,31]
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_PrevFrame(int nPort);/**
* 功能描述跳转视频到某一时间位置
* param nPort播放通道号[0,31]
* param pos视频位置百分比
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_SetPlayPos(int nPort,float pos);/**
* 功能描述显示/隐藏当前系统时间
* param nPort播放通道号[0,31]
* param visible是否显示
* param xPos坐标位置X宽度百分比
* param yPos坐标位置Y高度百分比
* param fontSize字体大小默认50
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_SetDateTime(int nPort,bool visible, float xPos, float yPos,int fontSize50);/**
* 功能描述当前解码完成数据回调
* param nPort播放通道号[0,31]
* param pBufyuv数据指针
* param nSize数据大小
* param pFrameInfo帧信息
*/
typedef void(_stdcall* DecodeCallBack)(int nPort, const unsigned char* pBuf, int nSize, FrameInfo pFrameInfo);/**
* 功能描述设置解码回调函数
* param nPort播放通道号[0,31]
* param pDecodeProc回调函数
*/
extern C __declspec(dllexport) bool _stdcall VideoPlayer_SetDecCallBack(int nPort, DecodeCallBack pDecodeProc);/**
* 功能描述在显示句柄窗口中绘制文本、图形等
* param nPort播放通道号[0,31]
* param hWnd视频窗口句柄用于创建GDI
* param width视频窗口宽度
* param height视频窗口高度
*/
typedef void(_stdcall* DrawCallBack)(int nPort, const void* hWnd,int width,int height);extern C __declspec(dllexport) bool _stdcall VideoPlayer_SetDrawCallBack(int nPort, DrawCallBack pDrawProc); 库支持CC#调用以下是C#调用的方法
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using VideoPlayDemo.Onvif;
using static VideoPlayDemo.MYVideoPlay;namespace VideoPlayDemo
{public partial class Form1 : Form{const int PLAY_PORT1 0;const int PLAY_PORT2 1;public event MYVideoPlay.DecodeCallBack decodeCallBack;public event MYVideoPlay.DrawCallBack drawCallBack;bool[] isRecording new bool[2];bool[] isOpened new bool[2];MYVideoPlay.OSDParameter[] OSDParameters1 new MYVideoPlay.OSDParameter[20];MYVideoPlay.OSDParameter[] OSDParameters2 new MYVideoPlay.OSDParameter[20];public Form1(){InitializeComponent();Timer timer new Timer();timer.Interval 100;timer.Enabled true;timer.Tick Timer_Tick;decodeCallBack new MYVideoPlay.DecodeCallBack(Form1_decodeCallBack);drawCallBack new MYVideoPlay.DrawCallBack(Form1_drawCallBack);//初始化for (int i 0; i 20; i){OSDParameters1[i] new MYVideoPlay.OSDParameter();OSDParameters1[i].visible false;OSDParameters1[i].text test中文i.ToString();OSDParameters1[i].fontSize 100;OSDParameters1[i].fontFamily 0;OSDParameters1[i].fontColor new MYVideoPlay.RGBAColor(Color.White);OSDParameters1[i].backColor new MYVideoPlay.RGBAColor(Color.Transparent);OSDParameters2[i] new MYVideoPlay.OSDParameter();OSDParameters2[i].visible false;OSDParameters2[i].text test中文 i.ToString();OSDParameters2[i].fontSize 100;OSDParameters2[i].fontFamily 0;OSDParameters2[i].fontColor new MYVideoPlay.RGBAColor(Color.Yellow);OSDParameters2[i].backColor new MYVideoPlay.RGBAColor(Color.Transparent);}}#region 视频播放控制方法/// summary/// 打开视频/// /summary/// param nameport/parampublic bool OpenVideo(int port,string url,IntPtr intPtr){bool ret false;ret MYVideoPlay.VideoPlayer_SetDecCallBack(port, decodeCallBack);if (!ret){MessageBox.Show(设置解码回调函数失败);return ret;}ret MYVideoPlay.VideoPlayer_SetDrawCallBack(port, drawCallBack);if (!ret){MessageBox.Show(设置绘图回调函数失败);return ret;}ret MYVideoPlay.VideoPlayer_OpenVideo(port, url, intPtr);if (!ret){MessageBox.Show(打开视频失败);return ret;}ret MYVideoPlay.VideoPlayer_StartPlay(port,false);if (!ret){MessageBox.Show(播放失败);return ret;}//叠加时间 // ret MYVideoPlay.VideoPlayer_SetDateTime(port, true, 0.01f, 0.01f,70);return ret;}/// summary/// 关闭视频/// /summary/// param nameport/paramprivate bool CloseVideo(int port){return MYVideoPlay.VideoPlayer_CloseVideo(port);}/// summary/// 开始录制 帧率60/// /summary/// param nameport/param/// param namehalfRate/paramprivate bool StartRecord(int port,bool halfRate){bool ret false;if(halfRate)ret MYVideoPlay.VideoPlayer_SetRecordParameter(port, 60, 5, 60,1);elseret MYVideoPlay.VideoPlayer_SetRecordParameter(port, 60, 5, 60, 0);string path string.Format(d:\\video_{0}, port);ret MYVideoPlay.VideoPlayer_StartRecord(port, path);if (!ret)MessageBox.Show(开启录制失败);return ret;}/// summary/// 停止录制/// /summary/// param nameport/paramprivate bool StopRecord(int port){bool ret MYVideoPlay.VideoPlayer_StopRecord(port);return ret;}/// summary/// 截图/// /summary/// param nameport/param/// returns/returnsprivate bool ShotImage(int port){bool ret MYVideoPlay.VideoPlayer_ShotImage(port, d:\\ port.ToString(), MYVideoPlay.PictureFormat.JPEG);return ret;}int[] frameRates new int[4];private void Form1_decodeCallBack(int nPort, IntPtr pBuf, int nSize, ref MYVideoPlay.FrameInfo pFrameInfo){frameRates[nPort] pFrameInfo.frameRate;this.Invoke((Action)delegate{this.lbFPS1.Text frameRates[0].ToString()fps;this.lbFPS2.Text frameRates[1].ToString()fps;});}private void Form1_drawCallBack(int nPort, IntPtr hWnd, int width, int height){}#endregion/// summary/// 打开视频/// /summary/// param namesender/param/// param namee/paramprivate void btnOpenVideo_Click(object sender, EventArgs e){Button btn sender as Button;int n int.Parse(btn.Tag.ToString());if (isOpened[n])return;string url;IntPtr intPtr IntPtr.Zero;switch (n){case 0: url textBox1.Text;intPtr pnlVideo1.Handle; break;case 1: url textBox2.Text;intPtr pnlVideo2.Handle; break;}Task task new Task(() {//网络直播流非相机流时设置更大的buffer进行缓存否则出现马赛克MYVideoPlay.VideoPlayer_SetDecodedBufferSize(n, 250);isOpened[n] OpenVideo(n,url,intPtr);});task.Start();}/// summary/// 关闭视频/// /summary/// param namesender/param/// param namee/paramprivate void btnCloseVideo_Click(object sender, EventArgs e){Button btn sender as Button;int n int.Parse(btn.Tag.ToString());if (!isOpened[n])return;bool ret CloseVideo(n);isOpened[n] !ret;}/// summary/// 开始录制/// /summary/// param namesender/param/// param namee/paramprivate void btnStartRecord_Click(object sender, EventArgs e){Button btn sender as Button;int n int.Parse(btn.Tag.ToString());if (isRecording[n] || !isOpened[n])return;if (n 0)isRecording[n] StartRecord(n, true);elseisRecording[n] StartRecord(n, false);}/// summary/// 停止录制/// /summary/// param namesender/param/// param namee/paramprivate void btnStopRecord_Click(object sender, EventArgs e){Button btn sender as Button;int n int.Parse(btn.Tag.ToString());if (!isRecording[n] || !isOpened[n])return;bool ret StopRecord(n);isRecording[n] !ret;}/// summary/// 截图/// /summary/// param namesender/param/// param namee/paramprivate void btnShotImage_Click(object sender, EventArgs e){Button btn sender as Button;int n int.Parse(btn.Tag.ToString());ShotImage(n);}/// summary/// 叠加字符测试/// /summary/// param namesender/param/// param namee/paramprivate void Timer_Tick(object sender, EventArgs e){Random rd new Random();bool ret false;if (isOpened[PLAY_PORT1]){OSDParameters1[0].visible OSDParameters1[1].visible true;OSDParameters1[0].x (float)rd.NextDouble();OSDParameters1[0].y (float)rd.NextDouble();OSDParameters1[1].x (float)rd.NextDouble();OSDParameters1[1].y (float)rd.NextDouble();//ZYVideoPlay.VideoPlayer_SetAllOSDTexts(PLAY_PORT1, OSDParameters1);}if (isOpened[PLAY_PORT2]){OSDParameters2[0].visible OSDParameters2[1].visible true;OSDParameters2[0].x (float)rd.NextDouble();OSDParameters2[0].y (float)rd.NextDouble();OSDParameters2[1].x (float)rd.NextDouble();OSDParameters2[1].y (float)rd.NextDouble();// ret ZYVideoPlay.VideoPlayer_SetAllOSDTexts(PLAY_PORT2, OSDParameters2);}}private void timer1_Tick(object sender, EventArgs e){if (isRecording[PLAY_PORT1]){if (DateTime.Now.Millisecond 500)lbRec1.Visible true;elselbRec1.Visible false;}elselbRec1.Visible false;if (isRecording[PLAY_PORT2]){if (DateTime.Now.Millisecond 500)lbRec2.Visible true;elselbRec2.Visible false;}elselbRec2.Visible false;}private void Form1_FormClosing(object sender, FormClosingEventArgs e){for(int i0;i2;i){if (isOpened[i])CloseVideo(i);}}}
}
