复制FFMpeg到目标目录
项目->属性->生成事件->生成前事件命令行
添加如下
复制目录
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xcopy /Y /i /e $(ProjectDir)\ffmpeg $(TargetDir)\ffmpeg
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复制文件
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xcopy /Y /d $(ProjectDir)\ffmpeg\* $(TargetDir)\ffmpeg\
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获取音频输入设备
使用NuGet添加 NAudio
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using NAudio.CoreAudioApi;
using System.Collections.Generic;
namespace ZJClassTool.Utils
{
public class ZJAudioModel : ZJNotifyModel
{
private string _name;
public string name
{
get { return _name; }
set
{
_name = value; OnPropertyChanged("name");
}
}
public string id { get; set; }
private bool _selected = true;
public bool selected
{
get { return _selected; }
set { _selected = value; OnPropertyChanged("selected"); }
}
public static List<ZJAudioModel> getAudioDevice()
{
List<ZJAudioModel> audioList = new List<ZJAudioModel>();
var enumerator = new NAudio.CoreAudioApi.MMDeviceEnumerator();
//允许你在某些状态下枚举渲染设备
var endpoints = enumerator.EnumerateAudioEndPoints(DataFlow.Capture, DeviceState.Active);
foreach (var endpoint in endpoints)
{
ZJAudioModel audioModel = new ZJAudioModel();
audioModel.name = endpoint.FriendlyName;
audioModel.id = endpoint.ID;
audioList.Add(audioModel);
}
return audioList;
}
}
}
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使用FFmpeg推流
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using System;
using System.Diagnostics;
using System.IO;
namespace ZJClassTool.Utils
{
internal class ZJRtmpPush
{
// ffmpeg进程
public static Process p = new Process();
// ffmpeg.exe实体文件路径
private static string ffmpegPath = AppDomain.CurrentDomain.BaseDirectory + "ffmpeg\\ffmpeg.exe";
/// <summary>
/// 功能: 开始录制
/// </summary>
public static void Start(string audioDevice, string outFilePath)
{
if (File.Exists(outFilePath))
{
File.Delete(outFilePath);
}
/*转码，视频录制设备：gdigrab；录制对象：桌面；
* 音频录制方式：dshow；
* 视频编码格式：h.264；*/
ProcessStartInfo startInfo = new ProcessStartInfo(ffmpegPath);
startInfo.WindowStyle = ProcessWindowStyle.Hidden;
var parastr = string.Format("-f gdigrab -framerate 15 -i desktop -f dshow -i audio=\"{0}\" -vcodec libx264 -preset:v ultrafast -tune:v zerolatency -acodec libmp3lame \"{1}\"", audioDevice, outFilePath);
startInfo.Arguments = parastr;
p.StartInfo = startInfo;
p.Start();
}
/// <summary>
/// 功能: 开始推流
/// </summary>
public static void StartPush(string audioDevice, string pushUrl)
{
/*转码，视频录制设备：gdigrab；录制对象：桌面；
* 音频录制方式：dshow；
* 视频编码格式：h.264；*/
ProcessStartInfo startInfo = new ProcessStartInfo(ffmpegPath);
startInfo.WindowStyle = ProcessWindowStyle.Hidden;
var parastr = string.Format("-f gdigrab -framerate 15 -i desktop -f dshow -i audio=\"{0}\" -filter:v scale=w=trunc(oh*a/2)*2:h=720 -vcodec libx264 -preset:v ultrafast -acodec libmp3lame -maxrate 1000k -pix_fmt yuv422p -f flv \"{1}\"", audioDevice, pushUrl);
startInfo.Arguments = parastr;
p.StartInfo = startInfo;
// Console.WriteLine("parastr:" + parastr);
p.Start();
}
/// <summary>
/// 功能: 停止录制
/// </summary>
public static void Stop()
{
p.Kill();
p.StartInfo.Arguments = "";
}
}
}
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实际上执行的推流命令
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ffmpeg -f gdigrab -framerate 15 -i desktop -f dshow -i audio="Internal Microphone (Cirrus Logic CS8409 (AB 51))" -filter:v scale=w=trunc(oh*a/2)*2:h=720 -vcodec libx264 -preset:v ultrafast -acodec libmp3lame -maxrate 1000k -pix_fmt yuv422p -f flv "rtmp://live.psvmc.cn/test/01"
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具体参数根据自己实际情况调整即可
转自：https://www.psvmc.cn/article/2020-01-08-wpf-start-07-ffmpeg.html