2016-06-30 04:23:52 +00:00
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using System;
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using System.Collections.Generic;
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2014-11-15 02:31:03 +00:00
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using System.Diagnostics;
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using System.IO;
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2016-06-30 04:23:52 +00:00
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using MediaBrowser.Model.Logging;
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2014-11-15 02:31:03 +00:00
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2016-06-30 04:23:52 +00:00
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namespace MediaBrowser.MediaEncoding.Encoder
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2014-11-15 02:31:03 +00:00
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{
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2016-06-30 04:23:52 +00:00
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public class EncoderValidator
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2014-11-15 02:31:03 +00:00
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{
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private readonly ILogger _logger;
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2016-06-30 04:23:52 +00:00
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public EncoderValidator(ILogger logger)
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2014-11-15 02:31:03 +00:00
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{
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_logger = logger;
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}
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2016-06-30 04:23:52 +00:00
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public Tuple<List<string>, List<string>> Validate(string encoderPath)
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2014-11-15 02:31:03 +00:00
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{
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2016-06-30 04:23:52 +00:00
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_logger.Info("Validating media encoder at {0}", encoderPath);
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2016-06-20 06:19:28 +00:00
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var decoders = GetDecoders(encoderPath);
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var encoders = GetEncoders(encoderPath);
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2014-11-29 02:40:46 +00:00
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2016-06-30 04:23:52 +00:00
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_logger.Info("Encoder validation complete");
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2015-09-18 03:08:45 +00:00
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return new Tuple<List<string>, List<string>>(decoders, encoders);
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2014-11-18 02:48:22 +00:00
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}
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2016-06-30 18:59:18 +00:00
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private List<string> GetDecoders(string encoderAppPath)
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2014-11-18 02:48:22 +00:00
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{
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2015-09-18 03:08:45 +00:00
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string output = string.Empty;
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2014-11-18 02:48:22 +00:00
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try
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{
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2016-06-30 18:59:18 +00:00
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output = GetProcessOutput(encoderAppPath, "-decoders");
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2014-11-18 02:48:22 +00:00
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}
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catch
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2014-11-15 02:31:03 +00:00
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{
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}
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2014-11-18 02:48:22 +00:00
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2015-09-18 03:08:45 +00:00
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var found = new List<string>();
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var required = new[]
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2014-11-18 02:48:22 +00:00
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{
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2015-09-18 03:08:45 +00:00
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"h264_qsv",
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"mpeg2_qsv",
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"vc1_qsv"
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};
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foreach (var codec in required)
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{
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var srch = " " + codec + " ";
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2014-11-18 02:48:22 +00:00
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2016-06-30 18:59:18 +00:00
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if (output.IndexOf(srch, StringComparison.OrdinalIgnoreCase) != -1)
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2014-11-18 02:48:22 +00:00
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{
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2016-06-30 18:59:18 +00:00
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_logger.Info("Decoder available: " + codec);
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2015-09-18 03:08:45 +00:00
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found.Add(codec);
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2014-11-18 02:48:22 +00:00
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}
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}
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2015-09-18 03:08:45 +00:00
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return found;
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2014-11-15 02:31:03 +00:00
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}
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2016-06-30 18:59:18 +00:00
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private List<string> GetEncoders(string encoderAppPath)
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2014-11-15 02:31:03 +00:00
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{
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2015-09-18 03:08:45 +00:00
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string output = null;
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try
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{
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2016-06-30 18:59:18 +00:00
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output = GetProcessOutput(encoderAppPath, "-encoders");
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2015-09-18 03:08:45 +00:00
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}
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catch
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{
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}
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var found = new List<string>();
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2014-11-15 02:31:03 +00:00
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var required = new[]
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{
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"libx264",
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2015-01-11 03:06:16 +00:00
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"libx265",
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2014-11-15 02:31:03 +00:00
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"mpeg4",
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"msmpeg4",
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2016-07-01 01:06:18 +00:00
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"libvpx",
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"libvpx-vp9",
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2014-11-15 02:31:03 +00:00
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"aac",
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"libmp3lame",
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2016-04-30 19:16:43 +00:00
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"libopus",
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2016-07-01 01:06:18 +00:00
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"libvorbis",
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2016-06-30 18:59:18 +00:00
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"srt",
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2016-06-30 21:04:26 +00:00
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"h264_nvenc",
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2016-07-08 03:21:06 +00:00
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"h264_qsv",
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"ac3"
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2014-11-15 02:31:03 +00:00
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};
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2016-07-01 01:06:18 +00:00
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output = output ?? string.Empty;
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2016-07-08 03:21:06 +00:00
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var index = 0;
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2015-09-18 03:08:45 +00:00
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foreach (var codec in required)
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2014-11-15 02:31:03 +00:00
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{
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2015-09-18 03:08:45 +00:00
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var srch = " " + codec + " ";
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2014-11-15 02:31:03 +00:00
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2016-06-30 18:59:18 +00:00
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if (output.IndexOf(srch, StringComparison.OrdinalIgnoreCase) != -1)
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2015-09-18 03:08:45 +00:00
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{
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2016-07-08 03:21:06 +00:00
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if (index < required.Length - 1)
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{
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_logger.Info("Encoder available: " + codec);
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}
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2015-09-18 03:08:45 +00:00
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found.Add(codec);
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2014-11-15 02:31:03 +00:00
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}
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2016-07-08 03:21:06 +00:00
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index++;
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2014-11-15 02:31:03 +00:00
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}
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2015-09-18 03:08:45 +00:00
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return found;
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2014-11-15 02:31:03 +00:00
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}
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2016-06-30 18:59:18 +00:00
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private string GetProcessOutput(string path, string arguments)
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2014-11-15 02:31:03 +00:00
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{
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var process = new Process
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{
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StartInfo = new ProcessStartInfo
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{
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CreateNoWindow = true,
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UseShellExecute = false,
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FileName = path,
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Arguments = arguments,
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WindowStyle = ProcessWindowStyle.Hidden,
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ErrorDialog = false,
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2016-07-01 02:35:18 +00:00
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RedirectStandardOutput = true
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2014-11-15 02:31:03 +00:00
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}
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};
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using (process)
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{
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process.Start();
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try
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{
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2016-06-30 04:41:15 +00:00
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return process.StandardOutput.ReadToEnd();
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2014-11-15 02:31:03 +00:00
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}
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catch
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{
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2016-06-30 04:41:15 +00:00
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_logger.Info("Killing process {0} {1}", path, arguments);
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2014-11-15 02:31:03 +00:00
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// Hate having to do this
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try
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{
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process.Kill();
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}
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catch (Exception ex1)
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{
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2016-06-30 18:59:18 +00:00
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_logger.ErrorException("Error killing process", ex1);
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2014-11-15 02:31:03 +00:00
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}
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throw;
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}
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}
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}
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}
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}
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