Exemplo n.º 1
0
        public static string GetSubtitleSubrip(FileInfo file)
        {
            if (FFmpegExecutable == null)
            {
                throw new NotSupportedException();
            }
            if (file == null)
            {
                throw new ArgumentNullException(nameof(file));
            }
            try
            {
                using (var p = new Process())
                {
                    var sti = p.StartInfo;
#if !DEBUG
                    sti.CreateNoWindow = true;
#endif
                    sti.UseShellExecute        = false;
                    sti.FileName               = FFmpegExecutable;
                    sti.Arguments              = $"-i \"{file.FullName}\" -map s:0 -f srt pipe:";
                    sti.LoadUserProfile        = false;
                    sti.RedirectStandardOutput = true;
                    p.Start();

                    var lastPosition = 0L;
                    using (var reader = new StreamReader(StreamManager.GetStream()))
                    {
                        using (var pump = new StreamPump(
                                   p.StandardOutput.BaseStream, reader.BaseStream, 100))
                        {
                            pump.Pump(null);
                            while (!p.WaitForExit(20000))
                            {
                                if (lastPosition != reader.BaseStream.Position)
                                {
                                    lastPosition = reader.BaseStream.Position;
                                    continue;
                                }
                                p.Kill();
                                throw new NotSupportedException("ffmpeg timed out");
                            }
                            if (!pump.Wait(2000))
                            {
                                throw new NotSupportedException("ffmpeg pump timed out");
                            }
                            reader.BaseStream.Seek(0, SeekOrigin.Begin);

                            var    rv = string.Empty;
                            string line;
                            while ((line = reader.ReadLine()) != null)
                            {
                                rv += regAssStrip.Replace(line.Trim(), string.Empty) + "\n";
                            }
                            if (!string.IsNullOrWhiteSpace(rv))
                            {
                                return(rv);
                            }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                throw new NotSupportedException(ex.Message, ex);
            }
            throw new NotSupportedException(
                      "File does not contain a valid subtitle");
        }
Exemplo n.º 2
0
        private static IDictionary <string, string> IdentifyInternalFromProcess(
            FileInfo file)
        {
            using (var p = new Process())
            {
                var sti = p.StartInfo;
#if !DEBUG
                sti.CreateNoWindow = true;
#endif
                sti.UseShellExecute       = false;
                sti.FileName              = FFmpegExecutable;
                sti.Arguments             = $"-i \"{file.FullName}\"";
                sti.LoadUserProfile       = false;
                sti.RedirectStandardError = true;
                p.Start();
                IDictionary <string, string> rv = new Dictionary <string, string>();

                using (var reader = new StreamReader(StreamManager.GetStream()))
                {
                    using (var pump = new StreamPump(
                               p.StandardError.BaseStream, reader.BaseStream, 4096))
                    {
                        pump.Pump(null);
                        if (!p.WaitForExit(3000))
                        {
                            throw new NotSupportedException("ffmpeg timed out");
                        }
                        if (!pump.Wait(1000))
                        {
                            throw new NotSupportedException("ffmpeg pump timed out");
                        }
                        reader.BaseStream.Seek(0, SeekOrigin.Begin);

                        var output = reader.ReadToEnd();
                        var match  = regDuration.Match(output);
                        if (match.Success)
                        {
                            int h, m, s;
                            if (int.TryParse(match.Groups[1].Value, out h) &&
                                int.TryParse(match.Groups[2].Value, out m) &&
                                int.TryParse(match.Groups[3].Value, out s))
                            {
                                int ms;
                                if (match.Groups.Count < 5 ||
                                    !int.TryParse(match.Groups[4].Value, out ms))
                                {
                                    ms = 0;
                                }
                                var ts  = new TimeSpan(0, h, m, s, ms * 10);
                                var tss = ts.TotalSeconds.ToString(
                                    CultureInfo.InvariantCulture);
                                rv.Add("LENGTH", tss);
                            }
                        }
                        match = regDimensions.Match(output);
                        if (match.Success)
                        {
                            int w, h;
                            if (int.TryParse(match.Groups[1].Value, out w) &&
                                int.TryParse(match.Groups[2].Value, out h))
                            {
                                rv.Add("VIDEO_WIDTH", w.ToString());
                                rv.Add("VIDEO_HEIGHT", h.ToString());
                            }
                        }
                    }
                }
                if (rv.Count == 0)
                {
                    throw new NotSupportedException("File not supported");
                }
                return(rv);
            }
        }