mirror of
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166 lines
4.5 KiB
C#
166 lines
4.5 KiB
C#
using MediaBrowser.Common.Configuration;
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using MediaBrowser.Common.Extensions;
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using MediaBrowser.Model.Logging;
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using System;
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using System.Diagnostics;
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using System.Globalization;
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using System.IO;
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using System.Text;
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using MediaBrowser.Common.IO;
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using System.Collections.Generic;
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using CommonIO;
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namespace MediaBrowser.Server.Startup.Common.FFMpeg
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{
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public class FFmpegValidator
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{
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private readonly ILogger _logger;
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private readonly IApplicationPaths _appPaths;
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private readonly IFileSystem _fileSystem;
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public FFmpegValidator(ILogger logger, IApplicationPaths appPaths, IFileSystem fileSystem)
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{
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_logger = logger;
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_appPaths = appPaths;
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_fileSystem = fileSystem;
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}
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public Tuple<List<string>,List<string>> Validate(FFMpegInfo info)
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{
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_logger.Info("FFMpeg: {0}", info.EncoderPath);
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_logger.Info("FFProbe: {0}", info.ProbePath);
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var decoders = GetDecoders(info.EncoderPath);
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var encoders = GetEncoders(info.EncoderPath);
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return new Tuple<List<string>, List<string>>(decoders, encoders);
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}
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private List<string> GetDecoders(string ffmpegPath)
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{
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string output = string.Empty;
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try
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{
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output = GetFFMpegOutput(ffmpegPath, "-decoders");
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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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var required = new[]
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{
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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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if (output.IndexOf(srch, StringComparison.OrdinalIgnoreCase) == -1)
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{
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_logger.Warn("ffmpeg is missing decoder " + codec);
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}
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else
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{
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found.Add(codec);
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}
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}
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return found;
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}
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private List<string> GetEncoders(string ffmpegPath)
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{
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string output = null;
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try
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{
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output = GetFFMpegOutput(ffmpegPath, "-encoders");
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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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var required = new[]
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{
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"libx264",
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"libx265",
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"mpeg4",
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"msmpeg4",
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//"libvpx",
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//"libvpx-vp9",
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"aac",
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"ac3",
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"libmp3lame",
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//"libvorbis",
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"srt"
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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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if (output.IndexOf(srch, StringComparison.OrdinalIgnoreCase) == -1)
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{
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_logger.Warn("ffmpeg is missing encoder " + codec);
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}
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else
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{
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found.Add(codec);
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}
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}
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return found;
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}
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private string GetFFMpegOutput(string path, string arguments)
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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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RedirectStandardOutput = true,
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RedirectStandardError = true
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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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process.BeginErrorReadLine();
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using (var reader = new StreamReader(process.StandardOutput.BaseStream))
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{
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return reader.ReadToEnd();
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}
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}
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catch
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{
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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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_logger.ErrorException("Error killing ffmpeg", ex1);
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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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