//合成视频
public void CreateVideo(string input, string output, string FrameRate1, string FrameRate2, string vcodec = "libx264", string pixfmt = "yuv420p", int crf_video = 16, string preset_video = "", string AudioFile = "", bool recode = true, string acodec = "aac", string abitrate = "320", DataReceivedEventHandler d = null, EventHandler e = null)
{
string cmd = $"-r {FrameRate1} -y -i \"{input}\" ";
if (AudioFile != "")
{
if (File.Exists(AudioFile))
{
cmd += $"-i \"{AudioFile}\"";
if (!recode)
{
cmd += " -c:a copy ";
}
else
{
cmd += $" -c:a {acodec} -b:a {abitrate}k ";
}
}
}
cmd += $"-c:v {vcodec} -pix_fmt {pixfmt} -crf {crf_video} -r {FrameRate2} ";
if (preset_video != "")
{
cmd += $"-preset {preset_video} ";
}
cmd += $"\"{output}\"";
ff = new ProjectFFMPEG.FFMPEG();
ff.SetPath(ffmpegPath);
ff.Run(cmd, dataReceived: d, Exited: e);
}
//提取帧
public void Frame_Exc(string input, string outputdir, bool fast_exc, bool dup = false, string scale = "", string framerate = "", string format = "png", bool hwaccel = false, DataReceivedEventHandler d = null, EventHandler e = null)
{
string cmd = "";
if (hwaccel)
{
cmd += "-hwaccel auto ";
}
if (fast_exc)
{
cmd += $"-y -i \"{input}\" ";
if (dup)
{
cmd += "-vf mpdecimate ";
}
}
else
{
cmd += $"-y -i \"{input}\" -vf ";
if (dup)
{
cmd += "mpdecimate,";
}
cmd += "zscale=matrix=709:matrixin=709:chromal=input:cin=input,format=yuv444p10le,format=rgb48be,format=rgb24 ";
}
if (dup)
{
cmd += "-vsync 0 ";
}
if (scale != "")
{
cmd += "-s " + scale + " ";
}
if (framerate != "")
{
cmd += $"-r {framerate} ";
}
if (outputdir.Substring(outputdir.Length) == @"\")
{
outputdir.Substring(0, outputdir.Length);
}
cmd += $"-f image2 \"{outputdir}\\%09d.{format}\"";
ff = new ProjectFFMPEG.FFMPEG();
ff.SetPath(ffmpegPath);
ff.Run(cmd, dataReceived: d, Exited: e);
}
//提取音频
public void Audio_Exc(string input, string acodec, string output, DataReceivedEventHandler d = null, EventHandler e = null)
{
ff = new ProjectFFMPEG.FFMPEG();
ff.SetPath(ffmpegPath);
ff.Run($"-y -i \"{input}\" -vn -c:a {acodec} \"{output}\"", dataReceived: d, Exited: e);
}