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/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef WEBRTC_MODULES_VIDEO_CODING_GENERIC_DECODER_H_
#define WEBRTC_MODULES_VIDEO_CODING_GENERIC_DECODER_H_
#include "webrtc/modules/interface/module_common_types.h"
#include "webrtc/modules/video_coding/codecs/interface/video_codec_interface.h"
#include "webrtc/modules/video_coding/main/source/encoded_frame.h"
#include "webrtc/modules/video_coding/main/source/timestamp_map.h"
#include "webrtc/modules/video_coding/main/source/timing.h"
namespace webrtc
{
class VCMReceiveCallback;
enum { kDecoderFrameMemoryLength = 10 };
struct VCMFrameInformation
{
int64_t renderTimeMs;
int64_t decodeStartTimeMs;
void* userData;
VideoRotation rotation;
};
class VCMDecodedFrameCallback : public DecodedImageCallback
{
public:
VCMDecodedFrameCallback(VCMTiming& timing, Clock* clock);
virtual ~VCMDecodedFrameCallback();
void SetUserReceiveCallback(VCMReceiveCallback* receiveCallback);
VCMReceiveCallback* UserReceiveCallback();
virtual int32_t Decoded(VideoFrame& decodedImage);
virtual int32_t ReceivedDecodedReferenceFrame(const uint64_t pictureId);
virtual int32_t ReceivedDecodedFrame(const uint64_t pictureId);
uint64_t LastReceivedPictureID() const;
void Map(uint32_t timestamp, VCMFrameInformation* frameInfo);
int32_t Pop(uint32_t timestamp);
private:
// Protect |_receiveCallback| and |_timestampMap|.
CriticalSectionWrapper* _critSect;
Clock* _clock;
VCMReceiveCallback* _receiveCallback; // Guarded by |_critSect|.
VCMTiming& _timing;
VCMTimestampMap _timestampMap; // Guarded by |_critSect|.
uint64_t _lastReceivedPictureID;
};
class VCMGenericDecoder
{
friend class VCMCodecDataBase;
public:
VCMGenericDecoder(VideoDecoder& decoder, bool isExternal = false);
~VCMGenericDecoder();
/**
* Initialize the decoder with the information from the VideoCodec
*/
int32_t InitDecode(const VideoCodec* settings,
int32_t numberOfCores);
/**
* Decode to a raw I420 frame,
*
* inputVideoBuffer reference to encoded video frame
*/
int32_t Decode(const VCMEncodedFrame& inputFrame, int64_t nowMs);
/**
* Free the decoder memory
*/
int32_t Release();
/**
* Reset the decoder state, prepare for a new call
*/
int32_t Reset();
/**
* Set decode callback. Deregistering while decoding is illegal.
*/
int32_t RegisterDecodeCompleteCallback(VCMDecodedFrameCallback* callback);
bool External() const;
private:
VCMDecodedFrameCallback* _callback;
VCMFrameInformation _frameInfos[kDecoderFrameMemoryLength];
uint32_t _nextFrameInfoIdx;
VideoDecoder& _decoder;
VideoCodecType _codecType;
bool _isExternal;
bool _keyFrameDecoded;
};
} // namespace webrtc
#endif // WEBRTC_MODULES_VIDEO_CODING_GENERIC_DECODER_H_
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