fix copy codec when transcoding is disabled (#636)

ErsatzTV.Core/FFmpeg/FFmpegLibraryProcessService.cs

@@ -94,12 +94,13 @@ public class FFmpegLibraryProcessService : IFFmpegProcessService
         }
 
         // TODO: need formats for these codecs
-        string videoFormat = channel.FFmpegProfile.VideoCodec switch
+        string videoFormat = playbackSettings.VideoCodec switch
         {
             "libx265" or "hevc_nvenc" or "hevc_qsv" or "hevc_vaapi" or "hevc_videotoolbox" => VideoFormat.Hevc,
             "libx264" or "h264_nvenc" or "h264_qsv" or "h264_vaapi" or "h264_videotoolbox" => VideoFormat.H264,
             "mpeg2video" => VideoFormat.Mpeg2Video,
-            _ => throw new ArgumentOutOfRangeException($"unexpected video codec {channel.FFmpegProfile.VideoCodec}")
+            "copy" => VideoFormat.Copy,
+            _ => throw new ArgumentOutOfRangeException($"unexpected video codec {playbackSettings.VideoCodec}")
         };
 
         HardwareAccelerationMode hwAccel = playbackSettings.HardwareAcceleration switch
@@ -142,8 +143,8 @@ public class FFmpegLibraryProcessService : IFFmpegProcessService
             playbackSettings.VideoBufferSize,
             playbackSettings.VideoTrackTimeScale,
             playbackSettings.Deinterlace,
-            channel.FFmpegProfile.AudioCodec,
+            playbackSettings.AudioCodec,
-            channel.FFmpegProfile.AudioChannels,
+            playbackSettings.AudioChannels,
             playbackSettings.AudioBitrate,
             playbackSettings.AudioBufferSize,
             playbackSettings.AudioSampleRate,

ErsatzTV.FFmpeg/Decoder/AvailableDecoders.cs

@@ -52,6 +52,7 @@ public static class AvailableDecoders
                 (_, VideoFormat.Vp9, _) => new DecoderVp9(),
 
                 (_, VideoFormat.Undetermined, _) => new DecoderImplicit(),
+                (_, VideoFormat.Copy, _) => new DecoderImplicit(),
 
                 var (accel, videoFormat, pixelFormat) => LogUnknownDecoder(accel, videoFormat, pixelFormat, logger)
             };

ErsatzTV.FFmpeg/Encoder/AvailableEncoders.cs

@@ -30,6 +30,7 @@ public static class AvailableEncoders
             (_, VideoFormat.Mpeg2Video) => new EncoderMpeg2Video(),
 
             (_, VideoFormat.Undetermined) => new EncoderImplicitVideo(),
+            (_, VideoFormat.Copy) => new EncoderCopyVideo(),
 
             var (accel, videoFormat) => LogUnknownEncoder(accel, videoFormat, logger)
         };
@@ -54,6 +55,7 @@ public static class AvailableEncoders
                 {
                     AudioFormat.Aac => (Option<IEncoder>)new EncoderAac(),
                     AudioFormat.Ac3 => new EncoderAc3(),
+                    AudioFormat.Copy => new EncoderCopyAudio(),
                     _ => LogUnknownEncoder(audioFormat, logger)
                 },
             () => LogUnknownEncoder(string.Empty, logger));

ErsatzTV.FFmpeg/Format/AudioFormat.cs

@@ -4,4 +4,6 @@ public static class AudioFormat
 {
     public const string Aac = "aac";
     public const string Ac3 = "ac3";
+
+    public const string Copy = "copy";
 }

ErsatzTV.FFmpeg/Format/VideoFormat.cs

@@ -14,5 +14,6 @@ public static class VideoFormat
     public const string Av1 = "av1";
     public const string MpegTs = "mpegts";
 
+    public const string Copy = "copy";
     public const string Undetermined = "";
 }