fix nvidia vp9 color normalization (#1140)

CHANGELOG.md

@@ -8,6 +8,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Fix many QSV pipeline bugs
 - Fix MPEG2 video format with QSV and VAAPI acceleration
 - Fix playback of content with undefined colorspace
+- Fix NVIDIA color normalization with VP9 sources
 
 ## [0.7.3-beta] - 2023-01-25
 ### Added

ErsatzTV.FFmpeg/ColorParams.cs

@@ -3,6 +3,7 @@ namespace ErsatzTV.FFmpeg;
 public record ColorParams(string ColorRange, string ColorSpace, string ColorTransfer, string ColorPrimaries)
 {
     public static readonly ColorParams Default = new("tv", "bt709", "bt709", "bt709");
+    public static readonly ColorParams Unknown = new("tv", string.Empty, string.Empty, string.Empty);
 
     public bool IsHdr => ColorTransfer is "arib-std-b67" or "smpte2084";
 

ErsatzTV.FFmpeg/Pipeline/NvidiaPipelineBuilder.cs

@@ -266,6 +266,13 @@ public class NvidiaPipelineBuilder : SoftwarePipelineBuilder
                 }
             }
 
+            // vp9 seems to lose color metadata through the ffmpeg pipeline
+            // clearing color params will force it to be re-added
+            if (videoStream.Codec == "vp9")
+            {
+                videoStream = videoStream with { ColorParams = ColorParams.Unknown };
+            }
+
             if (!videoStream.ColorParams.IsBt709)
             {
                 _logger.LogDebug("Adding colorspace filter");

ErsatzTV.Scanner.Tests/Core/FFmpeg/TranscodingTests.cs

@@ -125,27 +125,27 @@ public class TranscodingTests
         public static VideoScanKind[] VideoScanKinds =
         {
             VideoScanKind.Progressive,
-            VideoScanKind.Interlaced
+            // VideoScanKind.Interlaced
         };
 
         public static InputFormat[] InputFormats =
         {
-            // // example format that requires colorspace filter
-            new("libx264", "yuv420p", "tv", "smpte170m", "bt709", "smpte170m"),
-            //
-            // // example format that requires setparams filter
-            new("libx264", "yuv420p", string.Empty, string.Empty, string.Empty, string.Empty),
-            //
-            // // new("libx264", "yuvj420p"),
-            new("libx264", "yuv420p10le"),
-            // // new("libx264", "yuv444p10le"),
-            //
-            // // new("mpeg1video", "yuv420p"),
+            // // // example format that requires colorspace filter
+            // new("libx264", "yuv420p", "tv", "smpte170m", "bt709", "smpte170m"),
             // //
-            // // new("mpeg2video", "yuv420p"),
-            //
-            new("libx265", "yuv420p"),
-            new("libx265", "yuv420p10le"),
+            // // // example format that requires setparams filter
+            // new("libx264", "yuv420p", string.Empty, string.Empty, string.Empty, string.Empty),
+            // //
+            // // // new("libx264", "yuvj420p"),
+            // new("libx264", "yuv420p10le"),
+            // // // new("libx264", "yuv444p10le"),
+            // //
+            // // // new("mpeg1video", "yuv420p"),
+            // // //
+            // // // new("mpeg2video", "yuv420p"),
+            // //
+            // new("libx265", "yuv420p"),
+            // new("libx265", "yuv420p10le"),
             //
             // // new("mpeg4", "yuv420p"),
             // //
@@ -183,8 +183,8 @@ public class TranscodingTests
         public static HardwareAccelerationKind[] TestAccelerations =
         {
             // HardwareAccelerationKind.None,
-            // HardwareAccelerationKind.Nvenc,
-            HardwareAccelerationKind.Vaapi,
+            HardwareAccelerationKind.Nvenc,
+            // HardwareAccelerationKind.Vaapi,
             // HardwareAccelerationKind.Qsv,
             // HardwareAccelerationKind.VideoToolbox,
             // HardwareAccelerationKind.Amf