From f8343f2b4d4b5d663cb5ffff4d7375906beeb78d Mon Sep 17 00:00:00 2001
From: Jean-Yves Avenard <jyavenard@mozilla.com>
Date: Tue, 20 Oct 2020 23:26:25 +0000
Subject: [PATCH] Bug 1595994 - P6: Change Supports to take
 SupportDecoderParams. r=kamidphish

This is a subset of the parameters passed via CreateDecoderParams and is so
Supports() calls have access to KnowsCompositor and Options when determining
if decoding is supported.

Depends on D54877

Differential Revision: https://phabricator.services.mozilla.com/D54878
---
 dom/media/ipc/GpuDecoderModule.cpp            |   4 +-
 dom/media/ipc/GpuDecoderModule.h              |   2 +-
 .../mediacapabilities/MediaCapabilities.cpp   |   3 +-
 dom/media/mp4/MP4Decoder.cpp                  |   3 +-
 dom/media/platforms/PDMFactory.cpp            |  21 ++-
 dom/media/platforms/PDMFactory.h              |   6 +-
 dom/media/platforms/PlatformDecoderModule.h   | 155 +++++++++++++-----
 .../platforms/apple/AppleDecoderModule.cpp    |  12 +-
 .../platforms/apple/AppleDecoderModule.h      |   2 +-
 dom/media/platforms/wmf/WMFDecoderModule.cpp  |  21 +--
 dom/media/platforms/wmf/WMFDecoderModule.h    |   2 +-
 dom/media/webm/WebMDecoder.cpp                |   3 +-
 12 files changed, 157 insertions(+), 77 deletions(-)

diff --git a/dom/media/ipc/GpuDecoderModule.cpp b/dom/media/ipc/GpuDecoderModule.cpp
index d09eb39574a4..0bb809f5e59d 100644
--- a/dom/media/ipc/GpuDecoderModule.cpp
+++ b/dom/media/ipc/GpuDecoderModule.cpp
@@ -29,9 +29,9 @@ bool GpuDecoderModule::SupportsMimeType(
   return mWrapped->SupportsMimeType(aMimeType, aDiagnostics);
 }
 
-bool GpuDecoderModule::Supports(const TrackInfo& aTrackInfo,
+bool GpuDecoderModule::Supports(const SupportDecoderParams& aParams,
                                 DecoderDoctorDiagnostics* aDiagnostics) const {
-  return mWrapped->Supports(aTrackInfo, aDiagnostics);
+  return mWrapped->Supports(aParams, aDiagnostics);
 }
 
 static inline bool IsRemoteAcceleratedCompositor(KnowsCompositor* aKnows) {
diff --git a/dom/media/ipc/GpuDecoderModule.h b/dom/media/ipc/GpuDecoderModule.h
index 583035516630..2c96de955ca5 100644
--- a/dom/media/ipc/GpuDecoderModule.h
+++ b/dom/media/ipc/GpuDecoderModule.h
@@ -27,7 +27,7 @@ class GpuDecoderModule : public PlatformDecoderModule {
 
   bool SupportsMimeType(const nsACString& aMimeType,
                         DecoderDoctorDiagnostics* aDiagnostics) const override;
-  bool Supports(const TrackInfo& aTrackInfo,
+  bool Supports(const SupportDecoderParams& aParams,
                 DecoderDoctorDiagnostics* aDiagnostics) const override;
 
   already_AddRefed<MediaDataDecoder> CreateVideoDecoder(
diff --git a/dom/media/mediacapabilities/MediaCapabilities.cpp b/dom/media/mediacapabilities/MediaCapabilities.cpp
index f25f3a0dd0cf..10b2e046d08b 100644
--- a/dom/media/mediacapabilities/MediaCapabilities.cpp
+++ b/dom/media/mediacapabilities/MediaCapabilities.cpp
@@ -215,7 +215,8 @@ already_AddRefed<Promise> MediaCapabilities::DecodingInfo(
       // There's no need to create an audio decoder has we only want to know if
       // such codec is supported
       RefPtr<PDMFactory> pdm = new PDMFactory();
-      if (!pdm->Supports(*config, nullptr /* decoder doctor */)) {
+      SupportDecoderParams params{*config};
+      if (!pdm->Supports(params, nullptr /* decoder doctor */)) {
         auto info = MakeUnique<MediaCapabilitiesInfo>(
             false /* supported */, false /* smooth */,
             false /* power efficient */);
diff --git a/dom/media/mp4/MP4Decoder.cpp b/dom/media/mp4/MP4Decoder.cpp
index a1ecebf29c2b..848612063f88 100644
--- a/dom/media/mp4/MP4Decoder.cpp
+++ b/dom/media/mp4/MP4Decoder.cpp
@@ -171,7 +171,8 @@ bool MP4Decoder::IsSupportedType(const MediaContainerType& aType,
   // Verify that we have a PDM that supports the whitelisted types.
   RefPtr<PDMFactory> platform = new PDMFactory();
   for (const auto& track : tracks) {
-    if (!track || !platform->Supports(*track, aDiagnostics)) {
+    if (!track ||
+        !platform->Supports(SupportDecoderParams(*track), aDiagnostics)) {
       return false;
     }
   }
diff --git a/dom/media/platforms/PDMFactory.cpp b/dom/media/platforms/PDMFactory.cpp
index 8a6095a8c6e9..7cc3a0880df2 100644
--- a/dom/media/platforms/PDMFactory.cpp
+++ b/dom/media/platforms/PDMFactory.cpp
@@ -221,7 +221,7 @@ already_AddRefed<MediaDataDecoder> PDMFactory::CreateDecoder(
       }
 
       for (auto& current : mCurrentPDMs) {
-        if (!current->Supports(config, diagnostics)) {
+        if (!current->Supports(SupportDecoderParams(aParams), diagnostics)) {
           continue;
         }
         decoder = CreateDecoderWithPDM(current, aParams);
@@ -313,15 +313,15 @@ bool PDMFactory::SupportsMimeType(
   if (!trackInfo) {
     return false;
   }
-  return Supports(*trackInfo, aDiagnostics);
+  return Supports(SupportDecoderParams(*trackInfo), aDiagnostics);
 }
 
-bool PDMFactory::Supports(const TrackInfo& aTrackInfo,
+bool PDMFactory::Supports(const SupportDecoderParams& aParams,
                           DecoderDoctorDiagnostics* aDiagnostics) const {
   if (mEMEPDM) {
-    return mEMEPDM->Supports(aTrackInfo, aDiagnostics);
+    return mEMEPDM->Supports(aParams, aDiagnostics);
   }
-  if (VPXDecoder::IsVPX(aTrackInfo.mMimeType,
+  if (VPXDecoder::IsVPX(aParams.MimeType(),
                         VPXDecoder::VP8 | VPXDecoder::VP9)) {
     // Work around bug 1521370, where trying to instantiate an external decoder
     // could cause a crash.
@@ -329,7 +329,9 @@ bool PDMFactory::Supports(const TrackInfo& aTrackInfo,
     // So we can speed up the test by assuming that this codec is supported.
     return true;
   }
-  RefPtr<PlatformDecoderModule> current = GetDecoder(aTrackInfo, aDiagnostics);
+
+  RefPtr<PlatformDecoderModule> current =
+      GetDecoderModule(aParams, aDiagnostics);
   return !!current;
 }
 
@@ -433,8 +435,9 @@ bool PDMFactory::StartupPDM(already_AddRefed<PlatformDecoderModule> aPDM,
   return false;
 }
 
-already_AddRefed<PlatformDecoderModule> PDMFactory::GetDecoder(
-    const TrackInfo& aTrackInfo, DecoderDoctorDiagnostics* aDiagnostics) const {
+already_AddRefed<PlatformDecoderModule> PDMFactory::GetDecoderModule(
+    const SupportDecoderParams& aParams,
+    DecoderDoctorDiagnostics* aDiagnostics) const {
   if (aDiagnostics) {
     // If libraries failed to load, the following loop over mCurrentPDMs
     // will not even try to use them. So we record failures now.
@@ -451,7 +454,7 @@ already_AddRefed<PlatformDecoderModule> PDMFactory::GetDecoder(
 
   RefPtr<PlatformDecoderModule> pdm;
   for (auto& current : mCurrentPDMs) {
-    if (current->Supports(aTrackInfo, aDiagnostics)) {
+    if (current->Supports(aParams, aDiagnostics)) {
       pdm = current;
       break;
     }
diff --git a/dom/media/platforms/PDMFactory.h b/dom/media/platforms/PDMFactory.h
index 4ce09cddf5f7..9ed7d475a349 100644
--- a/dom/media/platforms/PDMFactory.h
+++ b/dom/media/platforms/PDMFactory.h
@@ -35,7 +35,7 @@ class PDMFactory final {
 
   bool SupportsMimeType(const nsACString& aMimeType,
                         DecoderDoctorDiagnostics* aDiagnostics) const;
-  bool Supports(const TrackInfo& aTrackInfo,
+  bool Supports(const SupportDecoderParams& aParams,
                 DecoderDoctorDiagnostics* aDiagnostics) const;
 
   // Creates a PlatformDecoderModule that uses a CDMProxy to decrypt or
@@ -67,8 +67,8 @@ class PDMFactory final {
   bool StartupPDM(already_AddRefed<PlatformDecoderModule> aPDM,
                   bool aInsertAtBeginning = false);
   // Returns the first PDM in our list supporting the mimetype.
-  already_AddRefed<PlatformDecoderModule> GetDecoder(
-      const TrackInfo& aTrackInfo,
+  already_AddRefed<PlatformDecoderModule> GetDecoderModule(
+      const SupportDecoderParams& aParams,
       DecoderDoctorDiagnostics* aDiagnostics) const;
 
   already_AddRefed<MediaDataDecoder> CreateDecoderWithPDM(
diff --git a/dom/media/platforms/PlatformDecoderModule.h b/dom/media/platforms/PlatformDecoderModule.h
index 7cc30756c75d..fa1bc9f6a867 100644
--- a/dom/media/platforms/PlatformDecoderModule.h
+++ b/dom/media/platforms/PlatformDecoderModule.h
@@ -41,45 +41,54 @@ class CDMProxy;
 
 static LazyLogModule sPDMLog("PlatformDecoderModule");
 
+namespace media {
+
+enum class Option {
+  Default,
+  LowLatency,
+  HardwareDecoderNotAllowed,
+  FullH264Parsing,
+  ErrorIfNoInitializationData,  // By default frames delivered before
+                                // initialization data are dropped. Pass this
+                                // option to raise an error if frames are
+                                // delivered before initialization data.
+  DefaultPlaybackDeviceMono,    // Currently only used by Opus on RDD to avoid
+                                // initialization of audio backends on RDD
+
+  SENTINEL  // one past the last valid value
+};
+using OptionSet = EnumSet<Option>;
+
+struct UseNullDecoder {
+  UseNullDecoder() = default;
+  explicit UseNullDecoder(bool aUseNullDecoder) : mUse(aUseNullDecoder) {}
+  bool mUse = false;
+};
+
+// Do not wrap H264 decoder in a H264Converter.
+struct NoWrapper {
+  NoWrapper() = default;
+  explicit NoWrapper(bool aDontUseWrapper) : mDontUseWrapper(aDontUseWrapper) {}
+  bool mDontUseWrapper = false;
+};
+
+struct VideoFrameRate {
+  VideoFrameRate() = default;
+  explicit VideoFrameRate(float aFramerate) : mValue(aFramerate) {}
+  float mValue = 0.0f;
+};
+
+}  // namespace media
+
 struct MOZ_STACK_CLASS CreateDecoderParams final {
+  using Option = media::Option;
+  using OptionSet = media::OptionSet;
+  using UseNullDecoder = media::UseNullDecoder;
+  using NoWrapper = media::NoWrapper;
+  using VideoFrameRate = media::VideoFrameRate;
+
   explicit CreateDecoderParams(const TrackInfo& aConfig) : mConfig(aConfig) {}
 
-  enum class Option {
-    Default,
-    LowLatency,
-    HardwareDecoderNotAllowed,
-    FullH264Parsing,
-    ErrorIfNoInitializationData,  // By default frames delivered before
-                                  // initialization data are dropped. Pass this
-                                  // option to raise an error if frames are
-                                  // delivered before initialization data.
-    DefaultPlaybackDeviceMono,    // Currently only used by Opus on RDD to avoid
-                                  // initialization of audio backends on RDD
-
-    SENTINEL  // one past the last valid value
-  };
-  using OptionSet = EnumSet<Option>;
-
-  struct UseNullDecoder {
-    UseNullDecoder() = default;
-    explicit UseNullDecoder(bool aUseNullDecoder) : mUse(aUseNullDecoder) {}
-    bool mUse = false;
-  };
-
-  // Do not wrap decoder in a MediaChangeMonitor.
-  struct NoWrapper {
-    NoWrapper() = default;
-    explicit NoWrapper(bool aDontUseWrapper)
-        : mDontUseWrapper(aDontUseWrapper) {}
-    bool mDontUseWrapper = false;
-  };
-
-  struct VideoFrameRate {
-    VideoFrameRate() = default;
-    explicit VideoFrameRate(float aFramerate) : mValue(aFramerate) {}
-    float mValue = 0.0f;
-  };
-
   template <typename T1, typename... Ts>
   CreateDecoderParams(const TrackInfo& aConfig, T1&& a1, Ts&&... args)
       : mConfig(aConfig) {
@@ -115,12 +124,12 @@ struct MOZ_STACK_CLASS CreateDecoderParams final {
   MediaResult* mError = nullptr;
   RefPtr<layers::KnowsCompositor> mKnowsCompositor;
   RefPtr<GMPCrashHelper> mCrashHelper;
-  UseNullDecoder mUseNullDecoder;
-  NoWrapper mNoWrapper;
+  media::UseNullDecoder mUseNullDecoder;
+  media::NoWrapper mNoWrapper;
   TrackInfo::TrackType mType = TrackInfo::kUndefinedTrack;
   MediaEventProducer<TrackInfo::TrackType>* mOnWaitingForKeyEvent = nullptr;
   OptionSet mOptions = OptionSet(Option::Default);
-  VideoFrameRate mRate;
+  media::VideoFrameRate mRate;
 
  private:
   void Set(DecoderDoctorDiagnostics* aDiagnostics) {
@@ -154,6 +163,67 @@ struct MOZ_STACK_CLASS CreateDecoderParams final {
   }
 };
 
+struct MOZ_STACK_CLASS SupportDecoderParams final {
+  using Option = media::Option;
+  using OptionSet = media::OptionSet;
+  using UseNullDecoder = media::UseNullDecoder;
+  using NoWrapper = media::NoWrapper;
+  using VideoFrameRate = media::VideoFrameRate;
+
+  explicit SupportDecoderParams(const TrackInfo& aConfig) : mConfig(aConfig) {}
+
+  explicit SupportDecoderParams(const CreateDecoderParams& aParams)
+      : mConfig(aParams.mConfig),
+        mDiagnostics(aParams.mDiagnostics),
+        mError(aParams.mError),
+        mKnowsCompositor(aParams.mKnowsCompositor),
+        mUseNullDecoder(aParams.mUseNullDecoder),
+        mNoWrapper(aParams.mNoWrapper),
+        mOptions(aParams.mOptions),
+        mRate(aParams.mRate) {}
+
+  template <typename T1, typename... Ts>
+  SupportDecoderParams(const TrackInfo& aConfig, T1&& a1, Ts&&... args)
+      : mConfig(aConfig) {
+    Set(std::forward<T1>(a1), std::forward<Ts>(args)...);
+  }
+
+  const nsCString& MimeType() const { return mConfig.mMimeType; }
+
+  const TrackInfo& mConfig;
+  DecoderDoctorDiagnostics* mDiagnostics = nullptr;
+  MediaResult* mError = nullptr;
+  RefPtr<layers::KnowsCompositor> mKnowsCompositor;
+  UseNullDecoder mUseNullDecoder;
+  NoWrapper mNoWrapper;
+  OptionSet mOptions = OptionSet(Option::Default);
+  VideoFrameRate mRate;
+
+ private:
+  void Set(DecoderDoctorDiagnostics* aDiagnostics) {
+    mDiagnostics = aDiagnostics;
+  }
+  void Set(MediaResult* aError) { mError = aError; }
+  void Set(media::UseNullDecoder aUseNullDecoder) {
+    mUseNullDecoder = aUseNullDecoder;
+  }
+  void Set(media::NoWrapper aNoWrapper) { mNoWrapper = aNoWrapper; }
+  void Set(media::OptionSet aOptions) { mOptions = aOptions; }
+  void Set(media::VideoFrameRate aRate) { mRate = aRate; }
+  void Set(layers::KnowsCompositor* aKnowsCompositor) {
+    if (aKnowsCompositor) {
+      mKnowsCompositor = aKnowsCompositor;
+      MOZ_ASSERT(aKnowsCompositor->IsThreadSafe());
+    }
+  }
+
+  template <typename T1, typename T2, typename... Ts>
+  void Set(T1&& a1, T2&& a2, Ts&&... args) {
+    Set(std::forward<T1>(a1));
+    Set(std::forward<T2>(a2), std::forward<Ts>(args)...);
+  }
+};
+
 // Used for IPDL serialization.
 // The 'value' have to be the biggest enum from CreateDecoderParams::Option.
 template <>
@@ -189,12 +259,13 @@ class PlatformDecoderModule {
       const nsACString& aMimeType,
       DecoderDoctorDiagnostics* aDiagnostics) const = 0;
 
-  virtual bool Supports(const TrackInfo& aTrackInfo,
+  virtual bool Supports(const SupportDecoderParams& aParams,
                         DecoderDoctorDiagnostics* aDiagnostics) const {
-    if (!SupportsMimeType(aTrackInfo.mMimeType, aDiagnostics)) {
+    const TrackInfo& trackInfo = aParams.mConfig;
+    if (!SupportsMimeType(trackInfo.mMimeType, aDiagnostics)) {
       return false;
     }
-    const auto videoInfo = aTrackInfo.GetAsVideoInfo();
+    const auto* videoInfo = trackInfo.GetAsVideoInfo();
     return !videoInfo ||
            SupportsColorDepth(videoInfo->mColorDepth, aDiagnostics);
   }
diff --git a/dom/media/platforms/apple/AppleDecoderModule.cpp b/dom/media/platforms/apple/AppleDecoderModule.cpp
index f1c7e9d24f42..f0a9cebfec9b 100644
--- a/dom/media/platforms/apple/AppleDecoderModule.cpp
+++ b/dom/media/platforms/apple/AppleDecoderModule.cpp
@@ -77,12 +77,14 @@ bool AppleDecoderModule::SupportsMimeType(
 }
 
 bool AppleDecoderModule::Supports(
-    const TrackInfo& aTrackInfo, DecoderDoctorDiagnostics* aDiagnostics) const {
-  if (aTrackInfo.IsAudio()) {
-    return SupportsMimeType(aTrackInfo.mMimeType, aDiagnostics);
+    const SupportDecoderParams& aParams,
+    DecoderDoctorDiagnostics* aDiagnostics) const {
+  const auto& trackInfo = aParams.mConfig;
+  if (trackInfo.IsAudio()) {
+    return SupportsMimeType(trackInfo.mMimeType, aDiagnostics);
   }
-  return aTrackInfo.GetAsVideoInfo() &&
-         IsVideoSupported(*aTrackInfo.GetAsVideoInfo());
+  return trackInfo.GetAsVideoInfo() &&
+         IsVideoSupported(*trackInfo.GetAsVideoInfo());
 }
 
 bool AppleDecoderModule::IsVideoSupported(
diff --git a/dom/media/platforms/apple/AppleDecoderModule.h b/dom/media/platforms/apple/AppleDecoderModule.h
index c0df065c99bd..2e444ac9d517 100644
--- a/dom/media/platforms/apple/AppleDecoderModule.h
+++ b/dom/media/platforms/apple/AppleDecoderModule.h
@@ -31,7 +31,7 @@ class AppleDecoderModule : public PlatformDecoderModule {
   bool SupportsMimeType(const nsACString& aMimeType,
                         DecoderDoctorDiagnostics* aDiagnostics) const override;
 
-  bool Supports(const TrackInfo& aTrackInfo,
+  bool Supports(const SupportDecoderParams& aParams,
                 DecoderDoctorDiagnostics* aDiagnostics) const override;
 
   static void Init();
diff --git a/dom/media/platforms/wmf/WMFDecoderModule.cpp b/dom/media/platforms/wmf/WMFDecoderModule.cpp
index f68c49fe2a68..453753b60903 100644
--- a/dom/media/platforms/wmf/WMFDecoderModule.cpp
+++ b/dom/media/platforms/wmf/WMFDecoderModule.cpp
@@ -224,20 +224,21 @@ bool WMFDecoderModule::SupportsMimeType(
   if (!trackInfo) {
     return false;
   }
-  return Supports(*trackInfo, aDiagnostics);
+  return Supports(SupportDecoderParams(*trackInfo), aDiagnostics);
 }
 
-bool WMFDecoderModule::Supports(const TrackInfo& aTrackInfo,
+bool WMFDecoderModule::Supports(const SupportDecoderParams& aParams,
                                 DecoderDoctorDiagnostics* aDiagnostics) const {
-  const auto videoInfo = aTrackInfo.GetAsVideoInfo();
+  const auto& trackInfo = aParams.mConfig;
+  const auto* videoInfo = trackInfo.GetAsVideoInfo();
   if (videoInfo && !SupportsColorDepth(videoInfo->mColorDepth, aDiagnostics)) {
     return false;
   }
 
-  if ((aTrackInfo.mMimeType.EqualsLiteral("audio/mp4a-latm") ||
-       aTrackInfo.mMimeType.EqualsLiteral("audio/mp4")) &&
+  if ((trackInfo.mMimeType.EqualsLiteral("audio/mp4a-latm") ||
+       trackInfo.mMimeType.EqualsLiteral("audio/mp4")) &&
       WMFDecoderModule::HasAAC()) {
-    const auto audioInfo = aTrackInfo.GetAsAudioInfo();
+    const auto audioInfo = trackInfo.GetAsAudioInfo();
     if (audioInfo && audioInfo->mRate > 0) {
       // Supported sampling rates per:
       // https://msdn.microsoft.com/en-us/library/windows/desktop/dd742784(v=vs.85).aspx
@@ -249,19 +250,19 @@ bool WMFDecoderModule::Supports(const TrackInfo& aTrackInfo,
     }
     return true;
   }
-  if (MP4Decoder::IsH264(aTrackInfo.mMimeType) && WMFDecoderModule::HasH264()) {
+  if (MP4Decoder::IsH264(trackInfo.mMimeType) && WMFDecoderModule::HasH264()) {
     return true;
   }
-  if (aTrackInfo.mMimeType.EqualsLiteral("audio/mpeg") &&
+  if (trackInfo.mMimeType.EqualsLiteral("audio/mpeg") &&
       !StaticPrefs::media_ffvpx_mp3_enabled() &&
       CanCreateWMFDecoder<CLSID_CMP3DecMediaObject>()) {
     return true;
   }
   if (sUsableVPXMFT) {
     static const uint32_t VP8_USABLE_BUILD = 16287;
-    if ((VPXDecoder::IsVP8(aTrackInfo.mMimeType) &&
+    if ((VPXDecoder::IsVP8(trackInfo.mMimeType) &&
          IsWindowsBuildOrLater(VP8_USABLE_BUILD)) ||
-        VPXDecoder::IsVP9(aTrackInfo.mMimeType)) {
+        VPXDecoder::IsVP9(trackInfo.mMimeType)) {
       return CanCreateWMFDecoder<CLSID_WebmMfVpxDec>();
     }
   }
diff --git a/dom/media/platforms/wmf/WMFDecoderModule.h b/dom/media/platforms/wmf/WMFDecoderModule.h
index 9e3673c8a695..d3ed31fd5b01 100644
--- a/dom/media/platforms/wmf/WMFDecoderModule.h
+++ b/dom/media/platforms/wmf/WMFDecoderModule.h
@@ -26,7 +26,7 @@ class WMFDecoderModule : public PlatformDecoderModule {
 
   bool SupportsMimeType(const nsACString& aMimeType,
                         DecoderDoctorDiagnostics* aDiagnostics) const override;
-  bool Supports(const TrackInfo& aTrackInfo,
+  bool Supports(const SupportDecoderParams& aParams,
                 DecoderDoctorDiagnostics* aDiagnostics) const override;
 
   // Called on main thread.
diff --git a/dom/media/webm/WebMDecoder.cpp b/dom/media/webm/WebMDecoder.cpp
index 515b380d58ca..4a061d2253a7 100644
--- a/dom/media/webm/WebMDecoder.cpp
+++ b/dom/media/webm/WebMDecoder.cpp
@@ -106,7 +106,8 @@ bool WebMDecoder::IsSupportedType(const MediaContainerType& aContainerType) {
   // color depth
   RefPtr<PDMFactory> platform = new PDMFactory();
   for (const auto& track : tracks) {
-    if (!track || !platform->Supports(*track, nullptr /* diagnostic */)) {
+    if (!track || !platform->Supports(SupportDecoderParams(*track),
+                                      nullptr /* diagnostic */)) {
       return false;
     }
   }