/// <summary>
/// recording audio.
/// <para>
/// first set inputDeviceName = null, you will get inputDeviceName list in vs output,
/// </para>
/// <para>
/// then set inputDeviceName to your real device name and run again,you will get a audio output.
/// </para>
/// <para>
/// if you want stop record, exit console;
/// </para>
/// <para>ffmpeg </para>
/// </summary>
/// <param name="outputFile"></param>
public RecordingAudio(string outputFile, string inputDeviceName = null)
{
// console output
FFmpegHelper.SetupLogging(logWrite: _ => Console.Write(_));
// register all device
FFmpegHelper.RegisterDevice();
var dshowInput = new InFormat("dshow");
// list all "dshow" device at console output, ffmpeg does not support direct reading of device names
MediaDevice.PrintDeviceInfos(dshowInput, "list", MediaDevice.ListDevicesOptions);
if (string.IsNullOrWhiteSpace(inputDeviceName))
{
return;
}
// get your audio input device name from console output
// NOTE: DO NOT delete "audio="
using (MediaReader reader = new MediaReader($"audio={inputDeviceName}", dshowInput))
using (MediaWriter writer = new MediaWriter(outputFile))
{
var stream = reader.Where(_ => _.Codec.Type == AVMediaType.AVMEDIA_TYPE_AUDIO).First();
writer.AddStream(MediaEncode.CreateAudioEncode(writer.Format, stream.Codec.AVCodecContext.channels, stream.Codec.AVCodecContext.sample_rate));
writer.Initialize();
AudioFrame dstFrame = AudioFrame.CreateFrameByCodec(writer[0].Codec);
SampleConverter converter = new SampleConverter(dstFrame);
long pts = 0;
foreach (var packet in reader.ReadPacket())
{
foreach (var frame in stream.ReadFrame(packet))
{
foreach (var dstframe in converter.Convert(frame))
{
pts += dstFrame.AVFrame.nb_samples;
dstFrame.Pts = pts;
foreach (var dstpacket in writer[0].WriteFrame(dstFrame))
{
writer.WritePacket(dstpacket);
}
}
}
}
writer.FlushMuxer();
}
}
private unsafe static void Main(string[] args)
{
Process.Start(Environment.CurrentDirectory);
FFmpegHelper.RegisterBinaries();
FFmpegHelper.SetupLogging(logWrite: _ => Trace.Write(_));
Console.WriteLine("Hello FFmpeg!");
//PngChromekeyFilter filter = new PngChromekeyFilter(@"C:\Users\IOL0ol1\Desktop\input.png", @"output.png");
//Remuxing filter = new Remuxing(@"C:\Users\Admin\Videos\Desktop\input.mp4");
//DecodeAudioToMat decodeAudio = new DecodeAudioToMat(@"C:\Users\Admin\Desktop\input.mp3");
//BitmapConverter bitmap = new BitmapConverter();
//EncodeAudioByMat encodeAudio = new EncodeAudioByMat("output.mp3");
//EncodeVideoByMat video = new EncodeVideoByMat("output.mp4", 800, 600, 1);
//DecodeVideoToMat videoToImage = new DecodeVideoToMat(@"C:\Users\Admin\Videos\Desktop\input.mp4", "image");
//DecodeVideoToMat videoToImage = new DecodeVideoToMat(@"C:\Users\Admin\Desktop\out9.webm", "image");
Console.ReadKey();
}
private unsafe static void Main(string[] args)
{
Process.Start(Environment.CurrentDirectory);
FFmpegHelper.RegisterBinaries(Path.Combine(Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location), "ffmpeg"));
FFmpegHelper.SetupLogging(logWrite: _ => Trace.Write(_));
Console.WriteLine("Hello FFmpeg!");
//PngChromekeyFilter filter = new PngChromekeyFilter(@"C:\Users\IOL0ol1\Desktop\input.png", @"output.png");
//Remuxing filter = new Remuxing(@"C:\Users\Admin\Videos\Desktop\input.mp4");
//DecodeAudioToMat decodeAudio = new DecodeAudioToMat(@"C:\Users\Admin\Desktop\input.mp3");
//BitmapConverter bitmap = new BitmapConverter();
//EncodeAudioByMat encodeAudio = new EncodeAudioByMat("output.mp3");
//EncodeVideoByMat video = new EncodeVideoByMat("output.mp4", 800, 600, 1);
//DecodeVideoToMat videoToImage = new DecodeVideoToMat(@"C:\Users\Admin\Videos\Desktop\input.mp4", "image");
DecodeVideoWithCustomCodecScaledToMat videoScaledToMat =
new DecodeVideoWithCustomCodecScaledToMat(@"C:\t\x.mp4", "image"); //DecodeVideoToMat videoToImage = new DecodeVideoToMat(@"C:\Users\Admin\Desktop\out9.webm", "image");
Console.ReadKey();
}
private static void Main(string[] args)
{
FFmpegHelper.RegisterBinaries();
FFmpegHelper.SetupLogging(logWrite: _ => Trace.Write(_));
Console.WriteLine("Hello FFmpeg!");
//new S64Audio();
var output = "output.mp4";
new EncodeVideoByMat(output, 800, 600, 1);
Process.Start(output);
//new DecodeVideoToMat(output, "images");
//new DecodeVideoWithCustomCodecScaledToMat(output, "images");
Console.WriteLine("--------------");
Console.ReadKey();
Process.Start(Environment.CurrentDirectory);
}