public void ChangeNumberOfAudioChannels_CreatesFile()
{
using (var file = TempFile.FromResource(Resources._2Channel, ".wav"))
{
var outputPath = file.Path.Replace(".wav", "1ch.wav");
FFmpegRunner.ChangeNumberOfAudioChannels(file.Path, outputPath, 1, new NullProgress());
Assert.IsTrue(File.Exists(outputPath));
}
}
public void ExtractOggAudio_CreatesFile()
{
using (var file = TempFile.FromResource(Resources.tiny, ".wmv"))
{
var outputPath = file.Path.Replace("wmv", "ogg");
FFmpegRunner.ExtractOggAudio(file.Path, outputPath, 1, new NullProgress());
Assert.IsTrue(File.Exists(outputPath));
}
}
public void MakeLowQualitySmallVideo_CreatesFile()
{
using (var file = TempFile.FromResource(Resources.tiny, ".wmv"))
{
var outputPath = file.Path.Replace("wmv", "low.wmv");
FFmpegRunner.MakeLowQualitySmallVideo(file.Path, outputPath, 0, new ConsoleProgress());
Assert.IsTrue(File.Exists(outputPath));
#if !MONO
System.Diagnostics.Process.Start(outputPath);
#endif
}
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// It's up to the caller to close and dispose of the stream.
/// </summary>
/// ------------------------------------------------------------------------------------
public static WaveStream GetOneChannelStreamFromAudio(string audioFilePath,
out Exception error, IProgress progress)
{
error = null;
try
{
var stream = new WaveFileReader(audioFilePath);
if (stream.WaveFormat.Channels == 1 || !FFmpegRunner.HaveNecessaryComponents)
{
return(stream);
}
}
catch (Exception e)
{
error = e;
return(null);
}
var tmpFile = Path.Combine(Path.GetTempPath(), Path.GetFileName(audioFilePath));
if (File.Exists(tmpFile))
{
File.Delete(tmpFile);
}
try
{
FFmpegRunner.ChangeNumberOfAudioChannels(audioFilePath, tmpFile, 1, progress);
// WaveFileReader does not read the entire file into a buffer right away. Therefore,
// the file will remain open but we want to delete it right away. So read it
// into our own stream and pass that to WaveFileReader so the file is no longer
// needed and can be deleted.
return(new WaveFileReader(new MemoryStream(File.ReadAllBytes(tmpFile))));
}
catch (Exception e)
{
error = e;
return(null);
}
finally
{
if (File.Exists(tmpFile))
{
try { File.Delete(tmpFile); }
catch { }
}
}
}
public void MakeLowQualityCompressedAudio_CreatesFile()
{
using (var file = TempFile.FromResource(Resources.tiny, ".wmv"))
{
var originalAudioPath = file.Path.Replace("wmv", "mp3");
FFmpegRunner.ExtractMp3Audio(file.Path, originalAudioPath, 1, new NullProgress());
var outputPath = originalAudioPath.Replace("mp3", "low.mp3");
FFmpegRunner.MakeLowQualityCompressedAudio(originalAudioPath, outputPath, new ConsoleProgress());
Assert.IsTrue(File.Exists(outputPath));
#if !MONO
System.Diagnostics.Process.Start(outputPath);
#endif
}
}
private string ShrinkPicture(string original, string newPathRoot)
{
Debug.WriteLine("ShrinkPicture " + original);
var newPath = newPathRoot + ".jpg";
if (File.Exists(newPath))
{
File.Delete(newPath);
}
var result = FFmpegRunner.MakeLowQualitySmallPicture(original, newPath,
_progress);
CheckForError(result);
return(newPath);
}
private string ShrinkAudio(string original, string newPathRoot)
{
Debug.WriteLine("ShrinkAudio " + original);
var newPath = newPathRoot + ".mp3";
if (File.Exists(newPath))
{
File.Delete(newPath);
}
var result = FFmpegRunner.MakeLowQualityCompressedAudio(original, newPath, _progress);
CheckForError(result);
return(newPath);
}
static void StartFfmpeg()
{
var ffmpegRunner = new FFmpegRunner(
/*@"D:\Dev\GitHub\AviSynthFakeFFmpegInjector\AviSynthFFmpegInjector\Build\VS\x64\Debug\ffmpeg.exe"*/
@"L:\temp\ffmpeg-4.0.2-win64-static\bin\ffmpeg.exe");
ffmpegRunner.Start();
//var startInfo = new ProcessStartInfo();
//startInfo.FileName =
// @"D:\Dev\GitHub\AviSynthFakeFFmpegInjector\AviSynthFFmpegInjector\Build\VS\x64\Debug\ffmpeg.exe";
//startInfo.Arguments =
// //@" -v info -i SCRIPT.avs -aspect 16:9 -c:v h264_nvenc -rc constqp -preset hq OUT.mp4";
// @" -v info -i SCRIPT.avs -aspect 16:9 -c:v h264_qsv -rc constqp -preset medium OUT.mp4";
//// for intel, possible presets: veryfast, faster, fast, medium, slow, slower, veryslow (https://www.intel.com/content/dam/www/public/us/en/documents/white-papers/cloud-computing-quicksync-video-ffmpeg-white-paper.pdf)
//startInfo.WorkingDirectory =
// @"D:\Dev\GitHub\AviSynthFakeFFmpegInjector\AviSynthFFmpegInjector\Build\VS\x64\Debug\";
//var env = startInfo.EnvironmentVariables;
//startInfo.CreateNoWindow = false;
//Process.Start(startInfo);
}
