1 files changed, 64 insertions, 0 deletions
diff --git a/dom/media/encoder/EncodedFrame.h b/dom/media/encoder/EncodedFrame.h
new file mode 100644
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+++ b/dom/media/encoder/EncodedFrame.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
+/* 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/. */
+
+#ifndef EncodedFrame_h_
+#define EncodedFrame_h_
+
+#include "nsISupportsImpl.h"
+#include "mozilla/media/MediaUtils.h"
+#include "TimeUnits.h"
+#include "VideoUtils.h"
+
+namespace mozilla {
+
+// Represent an encoded frame emitted by an encoder
+class EncodedFrame final {
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(EncodedFrame)
+ public:
+  enum FrameType {
+    VP8_I_FRAME,       // VP8 intraframe
+    VP8_P_FRAME,       // VP8 predicted frame
+    OPUS_AUDIO_FRAME,  // Opus audio frame
+    UNKNOWN            // FrameType not set
+  };
+  using ConstFrameData = const media::Refcountable<nsTArray<uint8_t>>;
+  using FrameData = media::Refcountable<nsTArray<uint8_t>>;
+  EncodedFrame(const media::TimeUnit& aTime, uint64_t aDuration,
+               uint64_t aDurationBase, FrameType aFrameType,
+               RefPtr<ConstFrameData> aData)
+      : mTime(aTime),
+        mDuration(aDuration),
+        mDurationBase(aDurationBase),
+        mFrameType(aFrameType),
+        mFrameData(std::move(aData)) {
+    MOZ_ASSERT(mFrameData);
+    MOZ_ASSERT_IF(mFrameType == VP8_I_FRAME, mDurationBase == PR_USEC_PER_SEC);
+    MOZ_ASSERT_IF(mFrameType == VP8_P_FRAME, mDurationBase == PR_USEC_PER_SEC);
+    MOZ_ASSERT_IF(mFrameType == OPUS_AUDIO_FRAME, mDurationBase == 48000);
+  }
+  // Timestamp in microseconds
+  const media::TimeUnit mTime;
+  // The playback duration of this packet in mDurationBase.
+  const uint64_t mDuration;
+  // The time base of mDuration.
+  const uint64_t mDurationBase;
+  // Represent what is in the FrameData
+  const FrameType mFrameType;
+  // Encoded data
+  const RefPtr<ConstFrameData> mFrameData;
+
+  // The end time of the frame in microseconds.
+  media::TimeUnit GetEndTime() const {
+    return mTime + media::TimeUnit(mDuration, mDurationBase);
+  }
+
+ private:
+  // Private destructor, to discourage deletion outside of Release():
+  ~EncodedFrame() = default;
+};
+
+}  // namespace mozilla
+
+#endif  // EncodedFrame_h_