Update FFmpeg log

Jellyfin.Api/Helpers/TranscodingJobHelper.cs

@@ -145,7 +145,7 @@ namespace Jellyfin.Api.Helpers
             lock (_activeTranscodingJobs)
             {
                 // This is really only needed for HLS.
-                // Progressive streams can stop on their own reliably
+                // Progressive streams can stop on their own reliably.
                 jobs = _activeTranscodingJobs.Where(j => string.Equals(playSessionId, j.PlaySessionId, StringComparison.OrdinalIgnoreCase)).ToList();
             }
 
@@ -241,7 +241,7 @@ namespace Jellyfin.Api.Helpers
             lock (_activeTranscodingJobs)
             {
                 // This is really only needed for HLS.
-                // Progressive streams can stop on their own reliably
+                // Progressive streams can stop on their own reliably.
                 jobs.AddRange(_activeTranscodingJobs.Where(killJob));
             }
 
@@ -304,10 +304,10 @@ namespace Jellyfin.Api.Helpers
 
                         process!.StandardInput.WriteLine("q");
 
-                        // Need to wait because killing is asynchronous
+                        // Need to wait because killing is asynchronous.
                         if (!process.WaitForExit(5000))
                         {
-                            _logger.LogInformation("Killing ffmpeg process for {Path}", job.Path);
+                            _logger.LogInformation("Killing FFmpeg process for {Path}", job.Path);
                             process.Kill();
                         }
                     }
@@ -470,11 +470,11 @@ namespace Jellyfin.Api.Helpers
         }
 
         /// <summary>
-        /// Starts the FFMPEG.
+        /// Starts FFmpeg.
         /// </summary>
         /// <param name="state">The state.</param>
         /// <param name="outputPath">The output path.</param>
-        /// <param name="commandLineArguments">The command line arguments for ffmpeg.</param>
+        /// <param name="commandLineArguments">The command line arguments for FFmpeg.</param>
         /// <param name="request">The <see cref="HttpRequest"/>.</param>
         /// <param name="transcodingJobType">The <see cref="TranscodingJobType"/>.</param>
         /// <param name="cancellationTokenSource">The cancellation token source.</param>
@@ -501,13 +501,13 @@ namespace Jellyfin.Api.Helpers
                 {
                     this.OnTranscodeFailedToStart(outputPath, transcodingJobType, state);
 
-                    throw new ArgumentException("User does not have access to video transcoding");
+                    throw new ArgumentException("User does not have access to video transcoding.");
                 }
             }
 
             if (string.IsNullOrEmpty(_mediaEncoder.EncoderPath))
             {
-                throw new ArgumentException("FFMPEG path not set.");
+                throw new ArgumentException("FFmpeg path not set.");
             }
 
             var process = new Process
@@ -544,18 +544,18 @@ namespace Jellyfin.Api.Helpers
             var commandLineLogMessage = process.StartInfo.FileName + " " + process.StartInfo.Arguments;
             _logger.LogInformation(commandLineLogMessage);
 
-            var logFilePrefix = "ffmpeg-transcode";
+            var logFilePrefix = "FFmpeg.Transcode-";
             if (state.VideoRequest != null
                 && EncodingHelper.IsCopyCodec(state.OutputVideoCodec))
             {
                 logFilePrefix = EncodingHelper.IsCopyCodec(state.OutputAudioCodec)
-                    ? "ffmpeg-remux"
-                    : "ffmpeg-directstream";
+                    ? "FFmpeg.Remux-"
+                    : "FFmpeg.DirectStream-";
             }
 
-            var logFilePath = Path.Combine(_serverConfigurationManager.ApplicationPaths.LogDirectoryPath, logFilePrefix + "-" + Guid.NewGuid() + ".txt");
+            var logFilePath = Path.Combine(_serverConfigurationManager.ApplicationPaths.LogDirectoryPath, logFilePrefix + DateTime.Now.ToString("YYYY-MM-dd_HH-mm-ss") + "_" + state.Request.MediaSourceId + ".log");
 
-            // FFMpeg writes debug/error info to stderr. This is useful when debugging so let's put it in the log directory.
+            // FFmpeg writes debug/error info to stderr. This is useful when debugging so let's put it in the log directory.
             Stream logStream = new FileStream(logFilePath, FileMode.Create, FileAccess.Write, FileShare.Read, IODefaults.FileStreamBufferSize, true);
 
             var commandLineLogMessageBytes = Encoding.UTF8.GetBytes(request.Path + Environment.NewLine + Environment.NewLine + JsonSerializer.Serialize(state.MediaSource) + Environment.NewLine + Environment.NewLine + commandLineLogMessage + Environment.NewLine + Environment.NewLine);
@@ -569,17 +569,17 @@ namespace Jellyfin.Api.Helpers
             }
             catch (Exception ex)
             {
-                _logger.LogError(ex, "Error starting ffmpeg");
+                _logger.LogError(ex, "Error starting FFmpeg");
 
                 this.OnTranscodeFailedToStart(outputPath, transcodingJobType, state);
 
                 throw;
             }
 
-            _logger.LogDebug("Launched ffmpeg process");
+            _logger.LogDebug("Launched FFmpeg process");
             state.TranscodingJob = transcodingJob;
 
-            // Important - don't await the log task or we won't be able to kill ffmpeg when the user stops playback
+            // Important - don't await the log task or we won't be able to kill FFmpeg when the user stops playback
             _ = new JobLogger(_logger).StartStreamingLog(state, process.StandardError.BaseStream, logStream);
 
             // Wait for the file to exist before proceeeding
@@ -748,11 +748,11 @@ namespace Jellyfin.Api.Helpers
 
             if (process.ExitCode == 0)
             {
-                _logger.LogInformation("FFMpeg exited with code 0");
+                _logger.LogInformation("FFmpeg exited with code 0");
             }
             else
             {
-                _logger.LogError("FFMpeg exited with code {0}", process.ExitCode);
+                _logger.LogError("FFmpeg exited with code {0}", process.ExitCode);
             }
 
             process.Dispose();