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diff --git a/dom/media/platforms/agnostic/AOMDecoder.h b/dom/media/platforms/agnostic/AOMDecoder.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#if !defined(AOMDecoder_h_)
+#define AOMDecoder_h_
+
+#include "PlatformDecoderModule.h"
+#include "mozilla/Span.h"
+
+#include <stdint.h>
+#include "aom/aom_decoder.h"
+
+namespace mozilla {
+
+class AOMDecoder : public MediaDataDecoder
+{
+public:
+ explicit AOMDecoder(const CreateDecoderParams& aParams);
+
+ RefPtr<InitPromise> Init() override;
+ void Input(MediaRawData* aSample) override;
+ void Flush() override;
+ void Drain() override;
+ void Shutdown() override;
+ const char* GetDescriptionName() const override
+ {
+ return "libaom (AV1) video decoder";
+ }
+
+ // Return true if aMimeType is a one of the strings used
+ // by our demuxers to identify AV1 streams.
+ static bool IsAV1(const nsACString& aMimeType);
+
+ // Return true if a sample is a keyframe.
+ static bool IsKeyframe(Span<const uint8_t> aBuffer);
+
+ // Return the frame dimensions for a sample.
+ static nsIntSize GetFrameSize(Span<const uint8_t> aBuffer);
+
+private:
+ ~AOMDecoder();
+ void ProcessDecode(MediaRawData* aSample);
+ MediaResult DoDecode(MediaRawData* aSample);
+ void ProcessDrain();
+
+ const RefPtr<layers::ImageContainer> mImageContainer;
+ const RefPtr<TaskQueue> mTaskQueue;
+ MediaDataDecoderCallback* mCallback;
+ Atomic<bool> mIsFlushing;
+
+ // AOM decoder state
+ aom_codec_ctx_t mCodec;
+
+ const VideoInfo& mInfo;
+};
+
+} // namespace mozilla
+
+#endif // AOMDecoder_h_