Bug 1500596 - pt2 - Add operator== for AudioInfo and VideoInfo. r=jya

These are needed for upcoming addition to an IPDL union.

Depends on D18639

Differential Revision: https://phabricator.services.mozilla.com/D18640

--HG--
extra : moz-landing-system : lando

dom/media/MediaInfo.cpp

@@ -23,4 +23,50 @@ const char* TrackTypeToStr(TrackInfo::TrackType aTrack) {
   }
 }
 
+bool TrackInfo::IsEqualTo(const TrackInfo& rhs) const {
+  return (mId == rhs.mId &&
+          mKind == rhs.mKind &&
+          mLabel == rhs.mLabel &&
+          mLanguage == rhs.mLanguage &&
+          mEnabled == rhs.mEnabled &&
+          mTrackId == rhs.mTrackId &&
+          mMimeType == rhs.mMimeType &&
+          mDuration == rhs.mDuration &&
+          mMediaTime == rhs.mMediaTime &&
+          mCrypto.mCryptoScheme == rhs.mCrypto.mCryptoScheme &&
+          mCrypto.mIVSize == rhs.mCrypto.mIVSize &&
+          mCrypto.mKeyId == rhs.mCrypto.mKeyId &&
+          mCrypto.mCryptByteBlock == rhs.mCrypto.mCryptByteBlock &&
+          mCrypto.mSkipByteBlock == rhs.mCrypto.mSkipByteBlock &&
+          mCrypto.mConstantIV == rhs.mCrypto.mConstantIV &&
+          mTags == rhs.mTags &&
+          mIsRenderedExternally == rhs.mIsRenderedExternally &&
+          mType == rhs.mType);
+}
+
+bool VideoInfo::operator==(const VideoInfo& rhs) const {
+  return (TrackInfo::IsEqualTo(rhs) &&
+          mDisplay == rhs.mDisplay &&
+          mStereoMode == rhs.mStereoMode &&
+          mImage == rhs.mImage &&
+          *mCodecSpecificConfig == *rhs.mCodecSpecificConfig &&
+          *mExtraData == *rhs.mExtraData &&
+          mRotation == rhs.mRotation &&
+          mColorDepth == rhs.mColorDepth &&
+          mImageRect == rhs.mImageRect &&
+          mAlphaPresent == rhs.mAlphaPresent);
+}
+
+bool AudioInfo::operator==(const AudioInfo& rhs) const {
+  return (TrackInfo::IsEqualTo(rhs) &&
+          mRate == rhs.mRate &&
+          mChannels == rhs.mChannels &&
+          mChannelMap == rhs.mChannelMap &&
+          mBitDepth == rhs.mBitDepth &&
+          mProfile == rhs.mProfile &&
+          mExtendedProfile == rhs.mExtendedProfile &&
+          *mCodecSpecificConfig == *rhs.mCodecSpecificConfig &&
+          *mExtraData == *rhs.mExtraData);
+}
+
 }  // namespace mozilla

dom/media/MediaInfo.h

@@ -32,6 +32,9 @@ class MetadataTag {
       : mKey(aKey), mValue(aValue) {}
   nsCString mKey;
   nsCString mValue;
+  bool operator==(const MetadataTag& rhs) const {
+    return mKey == rhs.mKey && mValue == rhs.mValue;
+  }
 };
 
 typedef nsDataHashtable<nsCStringHashKey, nsCString> MetadataTags;
@@ -119,6 +122,7 @@ class TrackInfo {
     mTags = aOther.mTags;
     MOZ_COUNT_CTOR(TrackInfo);
   }
+  bool IsEqualTo(const TrackInfo& rhs) const;
 
  private:
   TrackType mType;
@@ -165,6 +169,8 @@ class VideoInfo : public TrackInfo {
         mImageRect(aOther.mImageRect),
         mAlphaPresent(aOther.mAlphaPresent) {}
 
+  bool operator==(const VideoInfo& rhs) const;
+
   bool IsValid() const override {
     return mDisplay.width > 0 && mDisplay.height > 0;
   }
@@ -286,6 +292,8 @@ class AudioInfo : public TrackInfo {
         mCodecSpecificConfig(aOther.mCodecSpecificConfig),
         mExtraData(aOther.mExtraData) {}
 
+  bool operator==(const AudioInfo& rhs) const;
+
   static const uint32_t MAX_RATE = 640000;
 
   bool IsValid() const override {