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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 */
#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 {
virtual ~GMPVideoDecoderCallbackProxy() = default;
// 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 {
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;