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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 WidevineVideoDecoder_h_
#define WidevineVideoDecoder_h_
#include "stddef.h"
#include "content_decryption_module.h"
#include "gmp-api/gmp-video-decode.h"
#include "gmp-api/gmp-video-host.h"
#include "MediaData.h"
#include "nsISupportsImpl.h"
#include "nsTArray.h"
#include "WidevineDecryptor.h"
#include "WidevineVideoFrame.h"
#include <map>
#include <deque>
namespace mozilla {
class WidevineVideoDecoder : public GMPVideoDecoder {
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(WidevineVideoDecoder)
WidevineVideoDecoder(GMPVideoHost* aVideoHost,
RefPtr<CDMWrapper> aCDMWrapper);
void InitDecode(const GMPVideoCodec& aCodecSettings,
const uint8_t* aCodecSpecific,
uint32_t aCodecSpecificLength,
GMPVideoDecoderCallback* aCallback,
int32_t aCoreCount) override;
void Decode(GMPVideoEncodedFrame* aInputFrame,
bool aMissingFrames,
const uint8_t* aCodecSpecificInfo,
uint32_t aCodecSpecificInfoLength,
int64_t aRenderTimeMs = -1) override;
void Reset() override;
void Drain() override;
void DecodingComplete() override;
private:
~WidevineVideoDecoder();
cdm::ContentDecryptionModule_9* CDM() const {
// CDM should only be accessed before 'DecodingComplete'.
MOZ_ASSERT(mCDMWrapper);
// CDMWrapper ensure the CDM is non-null, no need to check again.
return mCDMWrapper->GetCDM();
}
bool ReturnOutput(WidevineVideoFrame& aFrame);
void CompleteReset();
GMPVideoHost* mVideoHost;
RefPtr<CDMWrapper> mCDMWrapper;
RefPtr<MediaByteBuffer> mExtraData;
RefPtr<MediaByteBuffer> mAnnexB;
GMPVideoDecoderCallback* mCallback;
std::map<uint64_t, uint64_t> mFrameDurations;
bool mSentInput;
GMPVideoCodecType mCodecType;
// Frames waiting on allocation
std::deque<WidevineVideoFrame> mFrameAllocationQueue;
// Number of calls of ReturnOutput currently in progress.
int32_t mReturnOutputCallDepth;
// If we're waiting to drain. Used to prevent drain completing while
// ReturnOutput calls are still on the stack.
bool mDrainPending;
// If a reset is being performed. Used to track if ReturnOutput should
// dump current frame.
bool mResetInProgress;
};
} // namespace mozilla
#endif // WidevineVideoDecoder_h_
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