/// <summary>
/// Create a new <see cref="T:FfmpegSharp.FfmpegProcess"/> instance prepared to run Ffmpeg.
/// </summary>
/// <returns>The Ffmpeg process instance.</returns>
public static FfmpegProcess Create(string path)
{
if (String.IsNullOrEmpty(path))
{
throw new FfmpegException("Ffmpeg path not specified");
}
string ffmpegExec;
if (File.Exists(path))
{
ffmpegExec = path;
}
else
{
throw new FileNotFoundException("Ffmpeg executable not found");
}
FfmpegProcess ffmpegProc = new FfmpegProcess();
ffmpegProc.StartInfo.FileName = ffmpegExec;
ffmpegProc.StartInfo.WorkingDirectory = Environment.CurrentDirectory;
ffmpegProc.StartInfo.EnvironmentVariables["AV_LOG_FORCE_NOCOLOR"] = "1";
string ffmpegPath = Path.GetDirectoryName(ffmpegExec);
if (!String.IsNullOrEmpty(ffmpegPath))
{
string pathEnv = Environment.GetEnvironmentVariable("PATH");
pathEnv += Path.PathSeparator + ffmpegPath;
ffmpegProc.StartInfo.EnvironmentVariables["PATH"] = pathEnv;
}
return(ffmpegProc);
}
/// <summary>
/// Gets information about the given file.
/// </summary>
/// <returns>File information as a <see cref="MediaInfo"/> instance.</returns>
/// <param name="inputFile">Input file.</param>
public MediaInfo GetInfo(string inputFile)
{
if (!File.Exists(inputFile))
{
throw new FileNotFoundException("File not found: " + inputFile);
}
using (FfmpegProcess ffmpeg = FfmpegProcess.Create(Path))
{
ffmpeg.StartInfo.RedirectStandardError = true;
ffmpeg.StartInfo.Arguments = "-hide_banner -i " + inputFile;
ffmpeg.Start();
LastCommand = Path + " " + ffmpeg.StartInfo.Arguments;
string output = ffmpeg.StandardError.ReadToEnd();
if (ffmpeg.WaitForExit(10000) == false)
{
throw new TimeoutException("FFmpeg response timeout");
}
if (output != null)
{
TimeSpan duration = TimeSpan.MinValue;
Match matchDuration = FfmpegProcess.DurationRegEx.Match(output);
//Match matchVideoMetadata = FfmpegProcess.VideoMetadataRegEx.Match(output);
if (!matchDuration.Success)
{
throw new FfmpegException("Unexpected output from FFmpeg");
}
TimeSpan.TryParseExact(matchDuration.Groups[1].Value, @"hh\:mm\:ss\.ff", CultureInfo.InvariantCulture, out duration);
/*
* if (matchVideoMetadata.Success)
* {
* Match matchVideoDetails = FfmpegProcess.VideoDetailsRegEx.Match(matchVideoMetadata.Groups[1].Value);
*
* if (matchVideoDetails.Success)
* {
*
* }
* }
*/
return(new MediaInfo(duration));
}
throw new FfmpegException("Unexpected output from FFmpeg");
}
}
/// <summary>
/// Kills the Ffmpeg process.
/// </summary>
public void Abort()
{
if ((FfmpegProcess_ != null) && !FfmpegProcess_.HasExited)
{
try
{
FfmpegProcess_.Kill();
}
finally
{
FfmpegProcess_.Dispose();
FfmpegProcess_ = null;
}
}
}
/// <summary>
/// Spawns a new Ffmpeg process using the specified options in this instance.
/// </summary>
/// <param name="inputFiles">Media files to be processed.</param>
/// <param name="outputFiles">Output files.</param>
public void Process(InputFile[] inputFiles, OutputFile[] outputFiles)
{
FfmpegProcess_ = FfmpegProcess.Create(Path);
try
{
FfmpegProcess_.ErrorDataReceived += OnFfmpegOutputReceived;
List <string> args = new List <string>();
args.Add("-hide_banner");
args.Add("-nostdin");
args.Add("-stats");
args.Add("-loglevel fatal");
// Avoid FFmpeg asking for overwrite if a specified output file already exists.
args.Add(OverwriteOutput ? "-y" : "-n");
// Global options.
foreach (var customArg in CustomArgs)
{
if (string.IsNullOrEmpty(customArg.Value))
{
args.Add("-" + customArg.Key);
}
else
{
args.Add(string.Format("-{0} {1}", customArg.Key, customArg.Value));
}
}
// Input options and files.
if ((inputFiles != null) && (inputFiles.Length > 0))
{
foreach (InputFile inputFile in inputFiles)
{
args.Add(inputFile.ToString());
}
}
else
{
throw new FfmpegException("No input files specified");
}
// Output options and files.
if ((outputFiles != null) && (outputFiles.Length > 0))
{
foreach (OutputFile outputFile in outputFiles)
{
args.Add(outputFile.ToString());
}
}
else
{
if (Environment.OSVersion.Platform == PlatformID.Win32NT)
{
args.Add("NUL");
}
else
{
args.Add("/dev/null");
}
}
FfmpegProcess_.StartInfo.Arguments = String.Join(" ", args);
LastCommand = Path + " " + FfmpegProcess_.StartInfo.Arguments;
try
{
FfmpegProcess_.Start();
FfmpegProcess_.BeginErrorReadLine();
FfmpegProcess_.WaitForExit();
}
catch (Exception ex)
{
throw new FfmpegException("Cannot spawn FFmpeg process", ex);
}
}
finally
{
if (FfmpegProcess_ != null)
{
FfmpegProcess_.Dispose();
FfmpegProcess_ = null;
}
}
}
