fix cliwrap usage (#737)

CHANGELOG.md

@@ -9,6 +9,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Only select picture subtitles (text subtitles are not yet supported)
   - Supported picture subtitles are `hdmv_pgs_subtitle` and `dvd_subtitle`
 - Fix subtitles using software encoders, videotoolbox, VAAPI
+- Fix setting VAAPI driver name
+- Fix ffmpeg troubleshooting reports
 
 ## [0.5.0-beta] - 2022-04-13
 ### Fixed

ErsatzTV.Application/Images/Queries/GetCachedImagePathHandler.cs

@@ -1,5 +1,4 @@
-using System.Diagnostics;
-using CliWrap;
+using CliWrap;
 using ErsatzTV.Core;
 using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Interfaces.FFmpeg;
@@ -70,16 +69,13 @@ public class
 
                     string originalPath = _imageCache.GetPathForImage(request.FileName, request.ArtworkKind, None);
 
-                    Process process = _ffmpegProcessService.ResizeImage(
+                    Command process = _ffmpegProcessService.ResizeImage(
                         ffmpegPath,
                         originalPath,
                         withExtension,
                         request.MaxHeight.Value);
 
-                    CommandResult resize = await Cli.Wrap(process.StartInfo.FileName)
-                        .WithArguments(process.StartInfo.ArgumentList)
-                        .WithValidation(CommandResultValidation.None)
-                        .ExecuteAsync();
+                    CommandResult resize = await process.ExecuteAsync();
 
                     if (resize.ExitCode != 0)
                     {

ErsatzTV.Application/Streaming/HlsSessionWorker.cs

@@ -1,4 +1,4 @@
-using System.Diagnostics;
+using System.Text;
 using System.Timers;
 using Bugsnag;
 using CliWrap;
@@ -207,18 +207,15 @@ public class HlsSessionWorker : IHlsSessionWorker
             {
                 await TrimAndDelete(cancellationToken);
 
-                using Process process = processModel.Process;
+                Command process = processModel.Process;
 
-                _logger.LogInformation(
-                    "ffmpeg hls arguments {FFmpegArguments}",
-                    string.Join(" ", process.StartInfo.ArgumentList));
+                _logger.LogInformation("ffmpeg hls arguments {FFmpegArguments}", process.Arguments);
 
                 try
                 {
-                    BufferedCommandResult commandResult = await Cli.Wrap(process.StartInfo.FileName)
-                        .WithArguments(process.StartInfo.ArgumentList)
+                    BufferedCommandResult commandResult = await process
                         .WithValidation(CommandResultValidation.None)
-                        .ExecuteBufferedAsync(cancellationToken);
+                        .ExecuteBufferedAsync(Encoding.UTF8, cancellationToken);
 
                     if (commandResult.ExitCode == 0)
                     {
@@ -256,16 +253,15 @@ public class HlsSessionWorker : IHlsSessionWorker
 
                         foreach (PlayoutItemProcessModel errorProcessModel in maybeOfflineProcess.RightAsEnumerable())
                         {
-                            Process errorProcess = errorProcessModel.Process;
+                            Command errorProcess = errorProcessModel.Process;
 
                             _logger.LogInformation(
                                 "ffmpeg hls error arguments {FFmpegArguments}",
-                                string.Join(" ", errorProcess.StartInfo.ArgumentList));
+                                errorProcess.Arguments);
 
-                            commandResult = await Cli.Wrap(errorProcess.StartInfo.FileName)
-                                .WithArguments(errorProcess.StartInfo.ArgumentList)
+                            commandResult = await errorProcess
                                 .WithValidation(CommandResultValidation.None)
-                                .ExecuteBufferedAsync(cancellationToken);
+                                .ExecuteBufferedAsync(Encoding.UTF8, cancellationToken);
 
                             if (commandResult.ExitCode == 0)
                             {

ErsatzTV.Application/Streaming/PlayoutItemProcessModel.cs

@@ -1,5 +1,8 @@
-using System.Diagnostics;
+using CliWrap;
 
 namespace ErsatzTV.Application.Streaming;
 
-public record PlayoutItemProcessModel(Process Process, Option<TimeSpan> MaybeDuration, DateTimeOffset Until);
+public record PlayoutItemProcessModel(
+    Command Process,
+    Option<TimeSpan> MaybeDuration,
+    DateTimeOffset Until);

ErsatzTV.Application/Streaming/Queries/GetConcatProcessByChannelNumberHandler.cs

@@ -1,4 +1,4 @@
-using System.Diagnostics;
+using CliWrap;
 using ErsatzTV.Core;
 using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Interfaces.FFmpeg;
@@ -32,7 +32,7 @@ public class GetConcatProcessByChannelNumberHandler : FFmpegProcessHandler<GetCo
             .GetValue<bool>(ConfigElementKey.FFmpegSaveReports)
             .Map(result => result.IfNone(false));
 
-        Process process = _ffmpegProcessService.ConcatChannel(
+        Command process = _ffmpegProcessService.ConcatChannel(
             ffmpegPath,
             saveReports,
             channel,

ErsatzTV.Application/Streaming/Queries/GetErrorProcessHandler.cs

@@ -1,4 +1,4 @@
-using System.Diagnostics;
+using CliWrap;
 using ErsatzTV.Core;
 using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Interfaces.FFmpeg;
@@ -27,7 +27,7 @@ public class GetErrorProcessHandler : FFmpegProcessHandler<GetErrorProcess>
         string ffprobePath,
         CancellationToken cancellationToken)
     {
-        Process process = await _ffmpegProcessService.ForError(
+        Command process = await _ffmpegProcessService.ForError(
             ffmpegPath,
             channel,
             request.MaybeDuration,

ErsatzTV.Application/Streaming/Queries/GetPlayoutItemProcessByChannelNumberHandler.cs

@@ -1,4 +1,4 @@
-using System.Diagnostics;
+using CliWrap;
 using ErsatzTV.Core;
 using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Domain.Filler;
@@ -139,7 +139,7 @@ public class GetPlayoutItemProcessByChannelNumberHandler : FFmpegProcessHandler<
                 .GetValue<bool>(ConfigElementKey.FFmpegSaveReports)
                 .Map(result => result.IfNone(false));
 
-            Process process = await _ffmpegProcessService.ForPlayoutItem(
+            Command process = await _ffmpegProcessService.ForPlayoutItem(
                 ffmpegPath,
                 ffprobePath,
                 saveReports,
@@ -185,7 +185,7 @@ public class GetPlayoutItemProcessByChannelNumberHandler : FFmpegProcessHandler<
             switch (error)
             {
                 case UnableToLocatePlayoutItem:
-                    Process offlineProcess = await _ffmpegProcessService.ForError(
+                    Command offlineProcess = await _ffmpegProcessService.ForError(
                         ffmpegPath,
                         channel,
                         maybeDuration,
@@ -195,7 +195,7 @@ public class GetPlayoutItemProcessByChannelNumberHandler : FFmpegProcessHandler<
 
                     return new PlayoutItemProcessModel(offlineProcess, maybeDuration, finish);
                 case PlayoutItemDoesNotExistOnDisk:
-                    Process doesNotExistProcess = await _ffmpegProcessService.ForError(
+                    Command doesNotExistProcess = await _ffmpegProcessService.ForError(
                         ffmpegPath,
                         channel,
                         maybeDuration,
@@ -205,7 +205,7 @@ public class GetPlayoutItemProcessByChannelNumberHandler : FFmpegProcessHandler<
 
                     return new PlayoutItemProcessModel(doesNotExistProcess, maybeDuration, finish);
                 default:
-                    Process errorProcess = await _ffmpegProcessService.ForError(
+                    Command errorProcess = await _ffmpegProcessService.ForError(
                         ffmpegPath,
                         channel,
                         maybeDuration,

ErsatzTV.Application/Streaming/Queries/GetWrappedProcessByChannelNumberHandler.cs

@@ -1,4 +1,4 @@
-using System.Diagnostics;
+using CliWrap;
 using ErsatzTV.Core;
 using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Interfaces.FFmpeg;
@@ -32,7 +32,7 @@ public class GetWrappedProcessByChannelNumberHandler : FFmpegProcessHandler<GetW
             .GetValue<bool>(ConfigElementKey.FFmpegSaveReports)
             .Map(result => result.IfNone(false));
 
-        Process process = _ffmpegProcessService.WrapSegmenter(
+        Command process = _ffmpegProcessService.WrapSegmenter(
             ffmpegPath,
             saveReports,
             channel,

ErsatzTV.Core.Tests/FFmpeg/TranscodingTests.cs

@@ -172,8 +172,8 @@ public class TranscodingTests
         [ValueSource(typeof(TestData), nameof(TestData.Watermarks))] Watermark watermark,
         [ValueSource(typeof(TestData), nameof(TestData.Subtitles))] Subtitle subtitle,
         [ValueSource(typeof(TestData), nameof(TestData.VideoFormats))] FFmpegProfileVideoFormat profileVideoFormat,
-        [ValueSource(typeof(TestData), nameof(TestData.NoAcceleration))] HardwareAccelerationKind profileAcceleration)
-        // [ValueSource(typeof(TestData), nameof(TestData.NvidiaAcceleration))] HardwareAccelerationKind profileAcceleration)
+        // [ValueSource(typeof(TestData), nameof(TestData.NoAcceleration))] HardwareAccelerationKind profileAcceleration)
+        [ValueSource(typeof(TestData), nameof(TestData.NvidiaAcceleration))] HardwareAccelerationKind profileAcceleration)
         // [ValueSource(typeof(TestData), nameof(TestData.VaapiAcceleration))] HardwareAccelerationKind profileAcceleration)
         // [ValueSource(typeof(TestData), nameof(TestData.QsvAcceleration))] HardwareAccelerationKind profileAcceleration)
         // [ValueSource(typeof(TestData), nameof(TestData.VideoToolboxAcceleration))] HardwareAccelerationKind profileAcceleration)
@@ -377,7 +377,7 @@ public class TranscodingTests
             _ => ChannelSubtitleMode.None 
         };
 
-        using Process process = await service.ForPlayoutItem(
+        Command process = await service.ForPlayoutItem(
             ExecutableName("ffmpeg"),
             ExecutableName("ffprobe"),
             false,
@@ -426,17 +426,14 @@ public class TranscodingTests
         var timeoutSignal = new CancellationTokenSource(TimeSpan.FromSeconds(30));
         try
         {
-            result = await Cli.Wrap(process.StartInfo.FileName)
-                .WithArguments(process.StartInfo.ArgumentList)
-                .WithValidation(CommandResultValidation.None)
+            result = await process
                 .WithStandardOutputPipe(PipeTarget.ToStream(Stream.Null))
                 .WithStandardErrorPipe(PipeTarget.ToStringBuilder(sb))
                 .ExecuteAsync(timeoutSignal.Token);
         }
         catch (OperationCanceledException)
         {
-            IEnumerable<string> quotedArgs = process.StartInfo.ArgumentList.Map(a => $"\'{a}\'");
-            Assert.Fail($"Transcode failure (timeout): ffmpeg {string.Join(" ", quotedArgs)}");
+            Assert.Fail($"Transcode failure (timeout): ffmpeg {process.Arguments}");
             return;
         }
 
@@ -445,22 +442,19 @@ public class TranscodingTests
 
         if (profileAcceleration != HardwareAccelerationKind.None && isUnsupported)
         {
-            var quotedArgs = process.StartInfo.ArgumentList.Map(a => $"\'{a}\'").ToList();
-            result.ExitCode.Should().Be(1, $"Error message with successful exit code? {string.Join(" ", quotedArgs)}");
-            Assert.Warn($"Unsupported on this hardware: ffmpeg {string.Join(" ", quotedArgs)}");
+            result.ExitCode.Should().Be(1, $"Error message with successful exit code? {process.Arguments}");
+            Assert.Warn($"Unsupported on this hardware: ffmpeg {process.Arguments}");
         }
         else if (error.Contains("Impossible to convert between"))
         {
-            IEnumerable<string> quotedArgs = process.StartInfo.ArgumentList.Map(a => $"\'{a}\'");
-            Assert.Fail($"Transcode failure: ffmpeg {string.Join(" ", quotedArgs)}");
+            Assert.Fail($"Transcode failure: ffmpeg {process.Arguments}");
         }
         else
         {
-            var quotedArgs = process.StartInfo.ArgumentList.Map(a => $"\'{a}\'").ToList();
-            result.ExitCode.Should().Be(0, error + Environment.NewLine + string.Join(" ", quotedArgs));
+            result.ExitCode.Should().Be(0, error + Environment.NewLine + process.Arguments);
             if (result.ExitCode == 0)
             {
-                Console.WriteLine(string.Join(" ", quotedArgs));
+                Console.WriteLine(process.Arguments);
             }
         }
     }

ErsatzTV.Core/FFmpeg/FFmpegLibraryProcessService.cs

@@ -1,5 +1,4 @@
-using System.Diagnostics;
-using System.Text;
+using CliWrap;
 using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Domain.Filler;
 using ErsatzTV.Core.Interfaces.FFmpeg;
@@ -32,7 +31,7 @@ public class FFmpegLibraryProcessService : IFFmpegProcessService
         _logger = logger;
     }
 
-    public async Task<Process> ForPlayoutItem(
+    public async Task<Command> ForPlayoutItem(
         string ffmpegPath,
         string ffprobePath,
         bool saveReports,
@@ -226,7 +225,7 @@ public class FFmpegLibraryProcessService : IFFmpegProcessService
 
         FFmpegPipeline pipeline = pipelineBuilder.Build(ffmpegState, desiredState);
 
-        return GetProcess(ffmpegPath, videoInputFile, audioInputFile, watermarkInputFile, None, pipeline);
+        return GetCommand(ffmpegPath, videoInputFile, audioInputFile, watermarkInputFile, None, pipeline);
     }
 
     private Option<WatermarkInputFile> GetWatermarkInputFile(
@@ -290,7 +289,7 @@ public class FFmpegLibraryProcessService : IFFmpegProcessService
         return None;
     }
 
-    public Task<Process> ForError(
+    public Task<Command> ForError(
         string ffmpegPath,
         Channel channel,
         Option<TimeSpan> duration,
@@ -299,7 +298,7 @@ public class FFmpegLibraryProcessService : IFFmpegProcessService
         long ptsOffset) =>
         _ffmpegProcessService.ForError(ffmpegPath, channel, duration, errorMessage, hlsRealtime, ptsOffset);
 
-    public Process ConcatChannel(string ffmpegPath, bool saveReports, Channel channel, string scheme, string host)
+    public Command ConcatChannel(string ffmpegPath, bool saveReports, Channel channel, string scheme, string host)
     {
         var resolution = new FrameSize(channel.FFmpegProfile.Resolution.Width, channel.FFmpegProfile.Resolution.Height);
 
@@ -319,13 +318,13 @@ public class FFmpegLibraryProcessService : IFFmpegProcessService
             concatInputFile,
             FFmpegState.Concat(saveReports, channel.Name));
 
-        return GetProcess(ffmpegPath, None, None, None, concatInputFile, pipeline);
+        return GetCommand(ffmpegPath, None, None, None, concatInputFile, pipeline);
     }
 
-    public Process WrapSegmenter(string ffmpegPath, bool saveReports, Channel channel, string scheme, string host) =>
+    public Command WrapSegmenter(string ffmpegPath, bool saveReports, Channel channel, string scheme, string host) =>
         _ffmpegProcessService.WrapSegmenter(ffmpegPath, saveReports, channel, scheme, host);
 
-    public Process ResizeImage(string ffmpegPath, string inputFile, string outputFile, int height)
+    public Command ResizeImage(string ffmpegPath, string inputFile, string outputFile, int height)
     {
         var videoInputFile = new VideoInputFile(
             inputFile,
@@ -341,13 +340,13 @@ public class FFmpegLibraryProcessService : IFFmpegProcessService
 
         FFmpegPipeline pipeline = pipelineBuilder.Resize(outputFile, new FrameSize(-1, height));
 
-        return GetProcess(ffmpegPath, videoInputFile, None, None, None, pipeline, false);
+        return GetCommand(ffmpegPath, videoInputFile, None, None, None, pipeline, false);
     }
 
-    public Process ConvertToPng(string ffmpegPath, string inputFile, string outputFile) =>
+    public Command ConvertToPng(string ffmpegPath, string inputFile, string outputFile) =>
         _ffmpegProcessService.ConvertToPng(ffmpegPath, inputFile, outputFile);
 
-    public Process ExtractAttachedPicAsPng(string ffmpegPath, string inputFile, int streamIndex, string outputFile) =>
+    public Command ExtractAttachedPicAsPng(string ffmpegPath, string inputFile, int streamIndex, string outputFile) =>
         _ffmpegProcessService.ExtractAttachedPicAsPng(ffmpegPath, inputFile, streamIndex, outputFile);
 
     public Task<Either<BaseError, string>> GenerateSongImage(
@@ -383,7 +382,7 @@ public class FFmpegLibraryProcessService : IFFmpegProcessService
             watermarkWidthPercent,
             cancellationToken);
 
-    private Process GetProcess(
+    private Command GetCommand(
         string ffmpegPath,
         Option<VideoInputFile> videoInputFile,
         Option<AudioInputFile> audioInputFile,
@@ -417,35 +416,16 @@ public class FFmpegLibraryProcessService : IFFmpegProcessService
             concatInputFile,
             pipeline.PipelineSteps);
 
-        var startInfo = new ProcessStartInfo
-        {
-            FileName = ffmpegPath,
-            RedirectStandardOutput = true,
-            RedirectStandardError = false,
-            UseShellExecute = false,
-            CreateNoWindow = true,
-            StandardOutputEncoding = Encoding.UTF8
-        };
-
         if (environmentVariables.Any())
         {
             _logger.LogDebug("FFmpeg environment variables {EnvVars}", environmentVariables);
         }
 
-        foreach ((string key, string value) in environmentVariables)
-        {
-            startInfo.EnvironmentVariables[key] = value;
-        }
-
-        foreach (string argument in arguments)
-        {
-            startInfo.ArgumentList.Add(argument);
-        }
-
-        return new Process
-        {
-            StartInfo = startInfo
-        };
+        return Cli.Wrap(ffmpegPath)
+            .WithArguments(arguments)
+            .WithValidation(CommandResultValidation.None)
+            .WithStandardErrorPipe(PipeTarget.ToStream(Stream.Null))
+            .WithEnvironmentVariables(environmentVariables.ToDictionary(e => e.Key, e => e.Value));
     }
 
     private static Option<string> VaapiDriverName(HardwareAccelerationMode accelerationMode, VaapiDriver driver)

ErsatzTV.Core/FFmpeg/FFmpegProcessService.cs

@@ -1,4 +1,5 @@
 using System.Diagnostics;
+using System.Text;
 using Bugsnag;
 using CliWrap;
 using CliWrap.Buffered;
@@ -39,7 +40,7 @@ public class FFmpegProcessService
         _logger = logger;
     }
 
-    public async Task<Process> ForError(
+    public async Task<Command> ForError(
         string ffmpegPath,
         Channel channel,
         Option<TimeSpan> duration,
@@ -102,29 +103,34 @@ public class FFmpegProcessService
 
         await duration.IfSomeAsync(d => builder = builder.WithDuration(d));
 
-        switch (channel.StreamingMode)
+        Process process = channel.StreamingMode switch
         {
             // HLS needs to segment and generate playlist
-            case StreamingMode.HttpLiveStreamingSegmenter:
-                return builder.WithHls(
+            StreamingMode.HttpLiveStreamingSegmenter =>
+                builder.WithHls(
                         channel.Number,
                         None,
                         ptsOffset,
                         playbackSettings.VideoTrackTimeScale,
                         playbackSettings.FrameRate)
-                    .Build();
-            default:
-                return builder.WithFormat("mpegts")
-                    .WithPipe()
-                    .Build();
-        }
+                    .Build(),
+            _ => builder.WithFormat("mpegts")
+                .WithPipe()
+                .Build()
+        };
+        
+        return Cli.Wrap(process.StartInfo.FileName)
+            .WithArguments(process.StartInfo.ArgumentList)
+            .WithValidation(CommandResultValidation.None)
+            .WithEnvironmentVariables(process.StartInfo.Environment.ToDictionary(kvp => kvp.Key, kvp => kvp.Value))
+            .WithStandardErrorPipe(PipeTarget.ToStream(Stream.Null));
     }
 
-    public Process WrapSegmenter(string ffmpegPath, bool saveReports, Channel channel, string scheme, string host)
+    public Command WrapSegmenter(string ffmpegPath, bool saveReports, Channel channel, string scheme, string host)
     {
         FFmpegPlaybackSettings playbackSettings = _playbackSettingsCalculator.ConcatSettings;
 
-        return new FFmpegProcessBuilder(ffmpegPath, saveReports, _logger)
+        Process process = new FFmpegProcessBuilder(ffmpegPath, saveReports, _logger)
             .WithThreads(1)
             .WithQuiet()
             .WithFormatFlags(playbackSettings.FormatFlags)
@@ -136,27 +142,45 @@ public class FFmpegProcessService
             .WithFormat("mpegts")
             .WithPipe()
             .Build();
+
+        return Cli.Wrap(process.StartInfo.FileName)
+            .WithArguments(process.StartInfo.ArgumentList)
+            .WithValidation(CommandResultValidation.None)
+            .WithEnvironmentVariables(process.StartInfo.Environment.ToDictionary(kvp => kvp.Key, kvp => kvp.Value))
+            .WithStandardErrorPipe(PipeTarget.ToStream(Stream.Null));
     }
 
-    public Process ConvertToPng(string ffmpegPath, string inputFile, string outputFile)
+    public Command ConvertToPng(string ffmpegPath, string inputFile, string outputFile)
     {
-        return new FFmpegProcessBuilder(ffmpegPath, false, _logger)
+        Process process = new FFmpegProcessBuilder(ffmpegPath, false, _logger)
             .WithThreads(1)
             .WithQuiet()
             .WithInput(inputFile)
             .WithOutputFormat("apng", outputFile)
             .Build();
+        
+        return Cli.Wrap(process.StartInfo.FileName)
+            .WithArguments(process.StartInfo.ArgumentList)
+            .WithValidation(CommandResultValidation.None)
+            .WithEnvironmentVariables(process.StartInfo.Environment.ToDictionary(kvp => kvp.Key, kvp => kvp.Value))
+            .WithStandardErrorPipe(PipeTarget.ToStream(Stream.Null));
     }
 
-    public Process ExtractAttachedPicAsPng(string ffmpegPath, string inputFile, int streamIndex, string outputFile)
+    public Command ExtractAttachedPicAsPng(string ffmpegPath, string inputFile, int streamIndex, string outputFile)
     {
-        return new FFmpegProcessBuilder(ffmpegPath, false, _logger)
+        Process process = new FFmpegProcessBuilder(ffmpegPath, false, _logger)
             .WithThreads(1)
             .WithQuiet()
             .WithInput(inputFile)
             .WithMap($"0:{streamIndex}")
             .WithOutputFormat("apng", outputFile)
             .Build();
+        
+        return Cli.Wrap(process.StartInfo.FileName)
+            .WithArguments(process.StartInfo.ArgumentList)
+            .WithValidation(CommandResultValidation.None)
+            .WithEnvironmentVariables(process.StartInfo.Environment.ToDictionary(kvp => kvp.Key, kvp => kvp.Value))
+            .WithStandardErrorPipe(PipeTarget.ToStream(Stream.Null));
     }
 
     public async Task<Either<BaseError, string>> GenerateSongImage(
@@ -414,7 +438,7 @@ public class FFmpegProcessService
                         path
                     })
                 .WithValidation(CommandResultValidation.None)
-                .ExecuteBufferedAsync();
+                .ExecuteBufferedAsync(Encoding.UTF8);
 
             if (result.ExitCode == 0)
             {

ErsatzTV.Core/Interfaces/FFmpeg/IFFmpegProcessService.cs

@@ -1,4 +1,4 @@
-using System.Diagnostics;
+using CliWrap;
 using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Domain.Filler;
 using ErsatzTV.Core.FFmpeg;
@@ -8,7 +8,7 @@ namespace ErsatzTV.Core.Interfaces.FFmpeg;
 
 public interface IFFmpegProcessService
 {
-    Task<Process> ForPlayoutItem(
+    Task<Command> ForPlayoutItem(
         string ffmpegPath,
         string ffprobePath,
         bool saveReports,
@@ -31,7 +31,7 @@ public interface IFFmpegProcessService
         long ptsOffset,
         Option<int> targetFramerate);
 
-    Task<Process> ForError(
+    Task<Command> ForError(
         string ffmpegPath,
         Channel channel,
         Option<TimeSpan> duration,
@@ -39,15 +39,15 @@ public interface IFFmpegProcessService
         bool hlsRealtime,
         long ptsOffset);
 
-    Process ConcatChannel(string ffmpegPath, bool saveReports, Channel channel, string scheme, string host);
+    Command ConcatChannel(string ffmpegPath, bool saveReports, Channel channel, string scheme, string host);
 
-    Process WrapSegmenter(string ffmpegPath, bool saveReports, Channel channel, string scheme, string host);
+    Command WrapSegmenter(string ffmpegPath, bool saveReports, Channel channel, string scheme, string host);
 
-    Process ResizeImage(string ffmpegPath, string inputFile, string outputFile, int height);
+    Command ResizeImage(string ffmpegPath, string inputFile, string outputFile, int height);
 
-    Process ConvertToPng(string ffmpegPath, string inputFile, string outputFile);
+    Command ConvertToPng(string ffmpegPath, string inputFile, string outputFile);
 
-    Process ExtractAttachedPicAsPng(string ffmpegPath, string inputFile, int streamIndex, string outputFile);
+    Command ExtractAttachedPicAsPng(string ffmpegPath, string inputFile, int streamIndex, string outputFile);
 
     Task<Either<BaseError, string>> GenerateSongImage(
         string ffmpegPath,

ErsatzTV.Core/Metadata/LocalFolderScanner.cs

@@ -1,5 +1,4 @@
-using System.Diagnostics;
-using Bugsnag;
+using Bugsnag;
 using CliWrap;
 using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Extensions;
@@ -163,16 +162,13 @@ public abstract class LocalFolderScanner
                         {
                             // extract attached pic (and convert to png)
                             string tempName = _tempFilePool.GetNextTempFile(TempFileCategory.CoverArt);
-                            using Process process = _ffmpegProcessService.ExtractAttachedPicAsPng(
+                            Command process = _ffmpegProcessService.ExtractAttachedPicAsPng(
                                 path,
                                 artworkFile,
                                 picIndex,
                                 tempName);
 
-                            await Cli.Wrap(process.StartInfo.FileName)
-                                .WithArguments(process.StartInfo.ArgumentList)
-                                .WithValidation(CommandResultValidation.None)
-                                .ExecuteAsync(cancellationToken);
+                            await process.ExecuteAsync(cancellationToken);
 
                             return tempName;
                         },
@@ -180,12 +176,9 @@ public abstract class LocalFolderScanner
                         {
                             // no attached pic index means convert to png
                             string tempName = _tempFilePool.GetNextTempFile(TempFileCategory.CoverArt);
-                            using Process process = _ffmpegProcessService.ConvertToPng(path, artworkFile, tempName);
+                            Command process = _ffmpegProcessService.ConvertToPng(path, artworkFile, tempName);
 
-                            await Cli.Wrap(process.StartInfo.FileName)
-                                .WithArguments(process.StartInfo.ArgumentList)
-                                .WithValidation(CommandResultValidation.None)
-                                .ExecuteAsync(cancellationToken);
+                            await process.ExecuteAsync(cancellationToken);
 
                             return tempName;
                         });

ErsatzTV.Infrastructure/Health/Checks/BaseHealthCheck.cs

@@ -1,4 +1,5 @@
-using CliWrap;
+using System.Text;
+using CliWrap;
 using CliWrap.Buffered;
 using ErsatzTV.Core.Health;
 
@@ -37,7 +38,7 @@ public abstract class BaseHealthCheck
         BufferedCommandResult result = await Cli.Wrap(path)
             .WithArguments(arguments)
             .WithValidation(CommandResultValidation.None)
-            .ExecuteBufferedAsync(cancellationToken);
+            .ExecuteBufferedAsync(Encoding.UTF8, cancellationToken);
 
         return result.StandardOutput;
     }

ErsatzTV/Controllers/InternalController.cs

@@ -1,4 +1,5 @@
 using System.Diagnostics;
+using CliWrap;
 using ErsatzTV.Application.Streaming;
 using ErsatzTV.Extensions;
 using MediatR;
@@ -43,11 +44,27 @@ public class InternalController : ControllerBase
                     result.Match<IActionResult>(
                         processModel =>
                         {
-                            Process process = processModel.Process;
+                            Command command = processModel.Process;
+
+                            _logger.LogInformation("ffmpeg arguments {FFmpegArguments}", command.Arguments);
+                            var process = new Process
+                            {
+                                StartInfo = new ProcessStartInfo
+                                {
+                                    FileName = command.TargetFilePath,
+                                    Arguments = command.Arguments,
+                                    RedirectStandardOutput = true,
+                                    RedirectStandardError = false,
+                                    UseShellExecute = false,
+                                    CreateNoWindow = true
+                                }
+                            };
+
+                            foreach ((string key, string value) in command.EnvironmentVariables)
+                            {
+                                process.StartInfo.Environment[key] = value;
+                            }
 
-                            _logger.LogInformation(
-                                "ffmpeg arguments {FFmpegArguments}",
-                                string.Join(" ", process.StartInfo.ArgumentList));
                             process.Start();
                             return new FileStreamResult(process.StandardOutput.BaseStream, "video/mp2t");
                         },

ErsatzTV/Controllers/IptvController.cs

@@ -1,4 +1,5 @@
 using System.Diagnostics;
+using CliWrap;
 using ErsatzTV.Application.Channels;
 using ErsatzTV.Application.Images;
 using ErsatzTV.Application.Streaming;
@@ -92,15 +93,30 @@ public class IptvController : ControllerBase
                 result => result.Match<IActionResult>(
                     processModel =>
                     {
-                        Process process = processModel.Process;
+                        Command command = processModel.Process;
 
                         _logger.LogInformation("Starting ts stream for channel {ChannelNumber}", channelNumber);
-                        _logger.LogDebug(
-                            "ffmpeg ts arguments {FFmpegArguments}",
-                            string.Join(" ", process.StartInfo.ArgumentList));
+                        _logger.LogInformation("ffmpeg arguments {FFmpegArguments}", command.Arguments);
+                        var process = new Process
+                        {
+                            StartInfo = new ProcessStartInfo
+                            {
+                                FileName = command.TargetFilePath,
+                                Arguments = command.Arguments,
+                                RedirectStandardOutput = true,
+                                RedirectStandardError = false,
+                                UseShellExecute = false,
+                                CreateNoWindow = true
+                            }
+                        };
+
+                        foreach ((string key, string value) in command.EnvironmentVariables)
+                        {
+                            process.StartInfo.Environment[key] = value;
+                        }
+
                         process.Start();
-                        return new FileStreamResult(process.StandardOutput.BaseStream, "video/mp2t");
-                    },
+                        return new FileStreamResult(process.StandardOutput.BaseStream, "video/mp2t");                    },
                     error => BadRequest(error.Value)));
     }