static void Main(string[] args)
{
String input_path = "F:\\work\\tmp\\capturedPCM_ffmpeg_stdout_converted_8000Hz_u8bit_1ch_120sec.raw";
String output_path = "F:\\work\\tmp\\capturedPCM_ffmpeg_stdout_converted_8000Hz_u8bit_1ch_120sec_encoded_my_DPCM_codec.raw";
MemoryStream ms = new MemoryStream();
byte[] buf = new byte[1024];
var reader = new FileStream(input_path, FileMode.Open);
int readBytes;
try
{
while ((readBytes = reader.Read(buf, 0, buf.Length)) > 0)
{
ms.Write(buf, 0, readBytes);
}
}
finally
{
ms.Flush();
reader.Close();
}
var encoder = new MyDpcmCodec();
var decoder = new MyDpcmCodec();
//Utils.saveByteArrayToFile(decoder.Decode(encoder.Encode(ms.ToArray())), output_path);
Utils.saveByteArrayToFile(decoder.Decode(encoder.Encode(ms.ToArray())), output_path);
}
// set ffmpegProc field
private void kickFFMPEG()
{
ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.UseShellExecute = false; //required to redirect standart input/output
// redirects on your choice
startInfo.RedirectStandardOutput = true;
startInfo.RedirectStandardError = true;
startInfo.RedirectStandardInput = true;
startInfo.CreateNoWindow = true;
startInfo.FileName = ffmpegPath;
if (GlobalConfiguration.isEncodeWithDpcmOrUseRawPCM)
{
startInfo.Arguments = ffmpegForPCMConvertArgs;
if (GlobalConfiguration.isUseDPCM)
{
dpcm_encoder = new MyDpcmCodec();
}
}
else
{
startInfo.Arguments = ffmpegForAudioEncodeArgs;
}
//startInfo.Arguments = ffmpegForDirectStreamingArgs;
ffmpegProc = new Process();
ffmpegProc.StartInfo = startInfo;
// リダイレクトした標準出力・標準エラーの内容を受信するイベントハンドラを設定する
//ffmpegProc.OutputDataReceived += useFFMPEGOutputData;
ffmpegProc.ErrorDataReceived += PrintFFMPEGErrorData;
ffmpegProc.Start();
// ffmpegが確実に起動状態になるまで待つ
Thread.Sleep(3000);
// 標準出力・標準エラーの非同期読み込みを開始する
//ffmpegProc.BeginOutputReadLine();
ffmpegProc.BeginErrorReadLine();
var task = Task.Run(() =>
{
byte[] ffmpegStdout_buf = new byte[2048];
int readedBytes = 0;
while (!ffmpegProc.StandardOutput.EndOfStream)
{
readedBytes = ffmpegProc.StandardOutput.BaseStream.Read(ffmpegStdout_buf, 0, ffmpegStdout_buf.Length);
//Console.WriteLine(Utils.getFormatedCurrentTime() + " DEBUG: read tabun one frames " + readedBytes.ToString() + " bytes");
//debug_ms.Write(ffmpegStdout_buf, 0, readedBytes);
//if (debug_ms.Length > 8000 * 120)
//{
// Utils.saveByteArrayToFile(debug_ms.ToArray(), "F:\\work\\tmp\\capturedPCM_ffmpeg_stdout_converted_8000Hz_u8bit_1ch_120sec.raw");
// Environment.Exit(0);
//}
//continue;
if (readedBytes > 0)
{
byte[] tmp_buf = new byte[readedBytes];
if (GlobalConfiguration.isUseDPCM)
{
Console.WriteLine("run dpcm encoding " + readedBytes.ToString() + " bytes");
tmp_buf = dpcm_encoder.Encode(tmp_buf);
}
if (GlobalConfiguration.isRunCapturedSoundDataHndlingWithoutConn == false)
{
this.cap_streamer._AudioOutputWriter.handleDataWithTCP(tmp_buf);
}
}
}
});
}