import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/media/gmp/GMPVideoDecoderProxy.h

@@ -0,0 +1,56 @@
+/* -*- 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 GMPVideoDecoderProxy_h_
+#define GMPVideoDecoderProxy_h_
+
+#include "nsTArray.h"
+#include "gmp-video-decode.h"
+#include "gmp-video-frame-i420.h"
+#include "gmp-video-frame-encoded.h"
+
+#include "GMPCallbackBase.h"
+#include "GMPUtils.h"
+
+class GMPVideoDecoderCallbackProxy : public GMPCallbackBase,
+                                     public GMPVideoDecoderCallback
+{
+public:
+  virtual ~GMPVideoDecoderCallbackProxy() {}
+};
+
+// A proxy to GMPVideoDecoder in the child process.
+// GMPVideoDecoderParent exposes this to users the GMP.
+// This enables Gecko to pass nsTArrays to the child GMP and avoid
+// an extra copy when doing so.
+
+// The consumer must call Close() when done with the codec, or when
+// Terminated() is called by the GMP plugin indicating an abnormal shutdown
+// of the underlying plugin.  After calling Close(), the consumer must
+// not access this again.
+
+// This interface is not thread-safe and must only be used from GMPThread.
+class GMPVideoDecoderProxy {
+public:
+  virtual nsresult InitDecode(const GMPVideoCodec& aCodecSettings,
+                              const nsTArray<uint8_t>& aCodecSpecific,
+                              GMPVideoDecoderCallbackProxy* aCallback,
+                              int32_t aCoreCount) = 0;
+  virtual nsresult Decode(mozilla::GMPUniquePtr<GMPVideoEncodedFrame> aInputFrame,
+                          bool aMissingFrames,
+                          const nsTArray<uint8_t>& aCodecSpecificInfo,
+                          int64_t aRenderTimeMs = -1) = 0;
+  virtual nsresult Reset() = 0;
+  virtual nsresult Drain() = 0;
+  virtual uint32_t GetPluginId() const = 0;
+
+  // Call to tell GMP/plugin the consumer will no longer use this
+  // interface/codec.
+  virtual void Close() = 0;
+
+  virtual const nsCString& GetDisplayName() const = 0;
+};
+
+#endif