[Windows] 'AudioOutputMode' of type 'RenderHeads.Media.AVProVideo.Windows+AudioOutput' in the player and thus can't be serialized

[CircusCharlie24]

Unity version

6000.0.58f2

Unity editor platform

Windows

AVPro Video edition

Core

AVPro Video version

3.3.6

Device hardware

intel CPU
RTX 3070

Which Windows version are you using?

11

Graphics API

D3D 11

Video API

Media Foundation

Audio output

System Direct

Any other Media Player component configuration required to reproduce the issue.

No response

Which output component(s) are you using?

No response

Any other component configuration required to reproduce the issue.

No response

The issue

In my project I create asset bundles. I recently imported AV pro plugin Core Mobile Edition. Now, when I try to create asset bundles, I get the following error

Type '[_AVProVideo.Extensions.VideoPlayer]RenderHeads.Media.AVProVideo.VideoPlayer_AVPro' has an extra field 'AudioOutputMode' of type 'RenderHeads.Media.AVProVideo.Windows+AudioOutput' in the player and thus can't be serialized (expected 'ControlledAudioTrackCount' of type 'System.UInt16')
UnityEditor.BuildPipeline:BuildAssetBundles

Kindly help.

Media information

No response

Log output

[Chris-RH]

We're looking into fixing this.

[CircusCharlie24]

Hi, I just wanted to get some validation on a hacky/workaround fix that I did to solve this problem. I have segregated the AudioOutputMode into three different variables which are based upon their respecitve target platforms. So I changed the following code in VideoPlayer_AVPro.cs

#if UNITY_STANDALONE_WIN
[SerializeField] private Windows.AudioOutput AudioOutputMode;
#elif UNITY_WSA_10_0
[SerializeField] public WindowsUWP.AudioOutput AudioOutputMode;
#else // All other platforms
[SerializeField] public PlatformOptions.AudioMode AudioOutputMode;

into

[SerializeField] private Windows.AudioOutput AudioOutputModeWindows;
[SerializeField] public WindowsUWP.AudioOutput AudioOutputModeUWP;
[SerializeField] public PlatformOptions.AudioMode AudioOutputMode;

and then I updated the usages of these variables in the entire class. Let me know if you want me to share the class. I didn't want to paste your code publically. So I can send you the class over mail or something.

My question to you is, would this make an impact in the functionality of the Video player? Could this lead to some potential major bug? Since I don't know this code much and only tried this "band-aid" solution, I just thought I'd get this validated by you for the time being until you fix the problem properly. Please let me know if you want me to send you the whole script file before you can answer my question.

Thanks.

[MorrisRH]

We're having trouble reproducing this but do agree that the platform defines don't seem quite correct. We're looking to change it to the following in the next release:

#if UNITY_STANDALONE_WIN || (UNITY_EDITOR_WIN && !(UNITY_IOS || UNITY_TVOS || UNITY_VISIONOS || UNITY_ANDROID || UNITY_OPENHARMONY))
		[SerializeField] private Windows.AudioOutput AudioOutputMode;
#elif UNITY_WSA_10_0
		[SerializeField] public WindowsUWP.AudioOutput AudioOutputMode;
#else	// All other platforms
		[SerializeField] public PlatformOptions.AudioMode AudioOutputMode;
#endif

[johnsympatient]

Maybe it helps reproducing, we got the v3 edition for iOS and Android.
When running in the Windows editor for Windows and then switching to Android Build target, it doesnt allow me to build unless I restart Unity.
Same vice versa.

6000.0.71f1
3.3.6

After testing the proposed fix above I am getting this:

Assets\External\AVProVideo\Extensions\VideoPlayer\Runtime\VideoPlayer_AVPro.cs(426,12): error CS0266: Cannot implicitly convert type 'RenderHeads.Media.AVProVideo.Windows.AudioOutput' to 'RenderHeads.Media.AVProVideo.MediaPlayer.PlatformOptions.AudioMode'. An explicit conversion exists (are you missing a cast?)

Assets\External\AVProVideo\Extensions\VideoPlayer\Runtime\VideoPlayer_AVPro.cs(431,28): error CS0266: Cannot implicitly convert type 'RenderHeads.Media.AVProVideo.MediaPlayer.PlatformOptions.AudioMode' to 'RenderHeads.Media.AVProVideo.Windows.AudioOutput'. An explicit conversion exists (are you missing a cast?)

Or this when applying the fix to other places where I feels it missing:

Type '[_AVProVideo.Extensions.VideoPlayer]RenderHeads.Media.AVProVideo.VideoPlayer_AVPro' has an extra field 'AudioOutputMode' of type 'RenderHeads.Media.AVProVideo.Windows+AudioOutput' in the player and thus can't be serialized  (expected 'ControlledAudioTrackCount' of type 'System.UInt16')

In the proposed fix UNITY_WEBGL is missing as well I think.

We got a pipeline where it starts Unity headless and switches between standalone/android/ios/webgl and builds Assetbundles for each platform. The current issue breaks this

[Chris-RH]

The platform switching issue may be related to this Unity issue.

[johnsympatient]

Maybe, but cannot get building bundles for WebGl to work. It fails with that even though I added the UNITY_WEBGL to the proposed fix:

Type '[_AVProVideo.Extensions.VideoPlayer]RenderHeads.Media.AVProVideo.VideoPlayer_AVPro' has an extra field 'AudioOutputMode' of type 'RenderHeads.Media.AVProVideo.Windows+AudioOutput' in the player and thus can't be serialized  (expected 'ControlledAudioTrackCount' of type 'System.UInt16')
UnityEngine.Debug:ExtractStackTraceNoAlloc (byte*,int,string)
UnityEngine.StackTraceUtility:ExtractStackTrace ()
UnityEditor.BuildPipeline:BuildAssetBundlesInternal (UnityEditor.BuildAssetBundlesParameters)
UnityEditor.BuildPipeline:BuildAssetBundles (UnityEditor.BuildAssetBundlesParameters)
UnityEditor.BuildPipeline:BuildAssetBundles (string,UnityEditor.AssetBundleBuild[],UnityEditor.BuildAssetBundleOptions,UnityEditor.BuildTarget)
Editor.AssetBundleAutomation:ProcessJobXml (System.IO.Abstractions.IFileSystem,Editor.Models.AssetBundleJob,Editor.Models.AssetBundleJobResult&) (at Assets/Scripts/Editor/AssetBundleAutomation.cs:197)
Editor.AssetBundleAutomation:CreateAssetBundle (System.IO.Abstractions.IFileSystem,string,bool) (at Assets/Scripts/Editor/AssetBundleAutomation.cs:86)
Editor.AssetBundleAutomation:CreateAssetBundle () (at Assets/Scripts/Editor/AssetBundleAutomation.cs:74)

[Assets/Scripts/Editor/AssetBundleAutomation.cs line 197]

Fields serialized in Editor, class 'RenderHeads.Media.AVProVideo.VideoPlayer_AVPro'
    'Source' of type 'RenderHeads.Media.AVProVideo.MediaSource'
    'Clip' of type 'RenderHeads.Media.AVProVideo.MediaReference'
    'Url' of type 'System.String'
    'PlayOnAwake' of type 'System.Boolean'
    'AutoOpening' of type 'System.Boolean'
    'IsLooping' of type 'System.Boolean'
    'PlaybackSpeed' of type 'System.Single'
    '_renderModeComponent' of type 'UnityEngine.MonoBehaviour'
    'displayIMGUI' of type 'RenderHeads.Media.AVProVideo.DisplayIMGUI'
    'displayUGUI' of type 'RenderHeads.Media.AVProVideo.DisplayUGUI'
    'applyToMesh' of type 'RenderHeads.Media.AVProVideo.ApplyToMesh'
    'applyToMaterial' of type 'RenderHeads.Media.AVProVideo.ApplyToMaterial'
    'applyToFarPlane' of type 'RenderHeads.Media.AVProVideo.ApplyToFarPlane'
    'applyToTexture' of type 'RenderHeads.Media.AVProVideo.ResolveToRenderTexture'
    'currentRenderMode' of type 'RenderHeads.Media.AVProVideo.DisplayType'
    'TargetMaterialRenderer' of type 'UnityEngine.Renderer'
    'TargetMateralProperty' of type 'System.String'
    'RenderMode' of type 'RenderHeads.Media.AVProVideo.DisplayType'
    'TargetMaterial' of type 'UnityEngine.Material'
    'Colour' of type 'UnityEngine.Color'
    'AspectRatio' of type 'UnityEngine.ScaleMode'
    'AspectRatioRenderTexture' of type 'RenderHeads.Media.AVProVideo.VideoResolveOptions+AspectRatio'
    'Fullscreen' of type 'System.Boolean'
    'TargetCameraAlpha' of type 'System.Single'
    'AudioOutputMode' of type 'RenderHeads.Media.AVProVideo.MediaPlayer+PlatformOptions+AudioMode'
    'ControlledAudioTrackCount' of type 'System.UInt16'
    'Volume' of type 'System.Single'
    'Muted' of type 'System.Boolean'
    'AudioSourceE' of type 'UnityEngine.AudioSource'
    'TargetTexture' of type 'UnityEngine.RenderTexture'
    'UVRect' of type 'UnityEngine.Rect'
    'canvasObj' of type 'UnityEngine.GameObject'
    '_converted' of type 'System.Boolean'
    'sendFrameReadyEvents' of type 'System.Boolean'
UnityEngine.Debug:ExtractStackTraceNoAlloc (byte*,int,string)
UnityEngine.StackTraceUtility:ExtractStackTrace ()
UnityEditor.BuildPipeline:BuildAssetBundlesInternal (UnityEditor.BuildAssetBundlesParameters)
UnityEditor.BuildPipeline:BuildAssetBundles (UnityEditor.BuildAssetBundlesParameters)
UnityEditor.BuildPipeline:BuildAssetBundles (string,UnityEditor.AssetBundleBuild[],UnityEditor.BuildAssetBundleOptions,UnityEditor.BuildTarget)
Editor.AssetBundleAutomation:ProcessJobXml (System.IO.Abstractions.IFileSystem,Editor.Models.AssetBundleJob,Editor.Models.AssetBundleJobResult&) (at Assets/Scripts/Editor/AssetBundleAutomation.cs:197)
Editor.AssetBundleAutomation:CreateAssetBundle (System.IO.Abstractions.IFileSystem,string,bool) (at Assets/Scripts/Editor/AssetBundleAutomation.cs:86)
Editor.AssetBundleAutomation:CreateAssetBundle () (at Assets/Scripts/Editor/AssetBundleAutomation.cs:74)

[Assets/Scripts/Editor/AssetBundleAutomation.cs line 197]

Fields serialized in target platform, class 'RenderHeads.Media.AVProVideo.VideoPlayer_AVPro'
    'Source' of type 'RenderHeads.Media.AVProVideo.MediaSource'
    'Clip' of type 'RenderHeads.Media.AVProVideo.MediaReference'
    'Url' of type 'System.String'
    'PlayOnAwake' of type 'System.Boolean'
    'AutoOpening' of type 'System.Boolean'
    'IsLooping' of type 'System.Boolean'
    'PlaybackSpeed' of type 'System.Single'
    '_renderModeComponent' of type 'UnityEngine.MonoBehaviour'
    'displayIMGUI' of type 'RenderHeads.Media.AVProVideo.DisplayIMGUI'
    'displayUGUI' of type 'RenderHeads.Media.AVProVideo.DisplayUGUI'
    'applyToMesh' of type 'RenderHeads.Media.AVProVideo.ApplyToMesh'
    'applyToMaterial' of type 'RenderHeads.Media.AVProVideo.ApplyToMaterial'
    'applyToFarPlane' of type 'RenderHeads.Media.AVProVideo.ApplyToFarPlane'
    'applyToTexture' of type 'RenderHeads.Media.AVProVideo.ResolveToRenderTexture'
    'currentRenderMode' of type 'RenderHeads.Media.AVProVideo.DisplayType'
    'TargetMaterialRenderer' of type 'UnityEngine.Renderer'
    'TargetMateralProperty' of type 'System.String'
    'RenderMode' of type 'RenderHeads.Media.AVProVideo.DisplayType'
    'TargetMaterial' of type 'UnityEngine.Material'
    'Colour' of type 'UnityEngine.Color'
    'AspectRatio' of type 'UnityEngine.ScaleMode'
    'AspectRatioRenderTexture' of type 'RenderHeads.Media.AVProVideo.VideoResolveOptions+AspectRatio'
    'Fullscreen' of type 'System.Boolean'
    'TargetCameraAlpha' of type 'System.Single'
    'AudioOutputMode' of type 'RenderHeads.Media.AVProVideo.Windows+AudioOutput'
    'ControlledAudioTrackCount' of type 'System.UInt16'
    'Volume' of type 'System.Single'
    'Muted' of type 'System.Boolean'
    'AudioSourceE' of type 'UnityEngine.AudioSource'
    'TargetTexture' of type 'UnityEngine.RenderTexture'
    'UVRect' of type 'UnityEngine.Rect'
    'canvasObj' of type 'UnityEngine.GameObject'
    '_converted' of type 'System.Boolean'
    'sendFrameReadyEvents' of type 'System.Boolean'
UnityEngine.Debug:ExtractStackTraceNoAlloc (byte*,int,string)
UnityEngine.StackTraceUtility:ExtractStackTrace ()
UnityEditor.BuildPipeline:BuildAssetBundlesInternal (UnityEditor.BuildAssetBundlesParameters)
UnityEditor.BuildPipeline:BuildAssetBundles (UnityEditor.BuildAssetBundlesParameters)
UnityEditor.BuildPipeline:BuildAssetBundles (string,UnityEditor.AssetBundleBuild[],UnityEditor.BuildAssetBundleOptions,UnityEditor.BuildTarget)
Editor.AssetBundleAutomation:ProcessJobXml (System.IO.Abstractions.IFileSystem,Editor.Models.AssetBundleJob,Editor.Models.AssetBundleJobResult&) (at Assets/Scripts/Editor/AssetBundleAutomation.cs:197)
Editor.AssetBundleAutomation:CreateAssetBundle (System.IO.Abstractions.IFileSystem,string,bool) (at Assets/Scripts/Editor/AssetBundleAutomation.cs:86)
Editor.AssetBundleAutomation:CreateAssetBundle () (at Assets/Scripts/Editor/AssetBundleAutomation.cs:74)

I did fix asetbundle building for WebGl on Windows by adding

#if UNITY_STANDALONE_WIN && (UNITY_EDITOR_WIN && !(UNITY_IOS || UNITY_TVOS || UNITY_VISIONOS || UNITY_ANDROID || UNITY_OPENHARMONY || UNITY_WEBGL))

everywhere where it was just if UNITY_STANDALONE_WIN in that class.
note the Webgl at the end and the && instead of ||

It likely breaks the player but it builds on all platforms which is the main usecase in my current branch.
If you fix this properly, pls try building WebGL on Windows as well