Esempio n. 1
0
        private void ProcessIt(string command, int? timeoutMilliseconds)
        {
            using (var ffmpegProcess = new Process())
            {
                ffmpegProcess.StartInfo = new ProcessStartInfo
                {
                    FileName = ResourceManagement.CommandConfiguration.FFmpegPath,
                    WorkingDirectory = ResourceManagement.CommandConfiguration.TempPath,
                    Arguments = command.Trim(),
                    CreateNoWindow = true,
                    UseShellExecute = false,
                    RedirectStandardError = true,
                };

                Log.Debug($"ffmpeg.exe MonoRuntime={ResourceManagement.IsMonoRuntime()} Args={ffmpegProcess.StartInfo.Arguments}");

                var stdErrorReader = StandardErrorAsyncStreamReader.AttachReader(ffmpegProcess);

                ffmpegProcess.Start();

                //workaround for a bug in the mono process when attempting to read async from console output events
                //   - link http://mono.1490590.n4.nabble.com/System-Diagnostic-Process-and-event-handlers-td3246096.html
                // we will wait a total of 10 seconds for the process to start, if nothing has happened in that time then we will
                // return a failure for the event.
                ffmpegProcess.WaitForProcessStart();

                stdErrorReader.Listen();

                var processStopped = ffmpegProcess.WaitForProcessStop(timeoutMilliseconds);
                if (!processStopped)
                {
                    throw new FFmpegTimeoutException(ffmpegProcess.StartInfo.Arguments);
                }

                stdErrorReader.Stop();

                StdOut = stdErrorReader.ToString();

                Log.Debug($"ffmpeg.exe MonoRuntime={ResourceManagement.IsMonoRuntime()}  Output={StdOut}.");

                var exitCode = ffmpegProcess.ExitCode;
                if (exitCode != 0)
                {
                    throw new FFmpegProcessingException(exitCode, StdOut);
                }
            }
        }