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/**********************************************************************
Audacity: A Digital Audio Editor
AVPacketWrapper.h
Dmitry Vedenko
**********************************************************************/
#pragma once
#include "FFmpegTypes.h"
#include <memory>
struct FFmpegFunctions;
typedef struct AVPacket AVPacket;
class FFMPEG_SUPPORT_API AVPacketWrapper
{
public:
AVPacketWrapper(const AVPacketWrapper&) = delete;
AVPacketWrapper& operator=(AVPacketWrapper&) = delete;
AVPacketWrapper(AVPacketWrapper&&) = delete;
AVPacketWrapper& operator=(AVPacketWrapper&&) = delete;
explicit AVPacketWrapper(const FFmpegFunctions& ffmpeg) noexcept;
AVPacket* GetWrappedValue() noexcept;
const AVPacket* GetWrappedValue() const noexcept;
virtual ~AVPacketWrapper();
virtual AudacityAVBufferRef* GetBuf() const noexcept = 0;
virtual int64_t GetPresentationTimestamp() const noexcept = 0;
virtual int64_t GetDecompressionTimestamp() const noexcept = 0;
virtual int GetDuration() const noexcept = 0;
virtual void RescalePresentationTimestamp(AudacityAVRational bq, AudacityAVRational cq) noexcept = 0;
virtual void RescaleDecompressionTimestamp(AudacityAVRational bq, AudacityAVRational cq) noexcept = 0;
virtual void RescaleDuration(AudacityAVRational bq, AudacityAVRational cq) noexcept = 0;
virtual uint8_t* GetData() const noexcept = 0;
virtual int GetSize() const noexcept = 0;
virtual bool OffsetPacket(size_t offset) noexcept = 0;
virtual void ResetData() noexcept = 0;
virtual void ResetTimestamps() noexcept = 0;
virtual int GetStreamIndex() const noexcept = 0;
virtual void SetStreamIndex(int index) noexcept = 0;
virtual int GetFlags() const noexcept = 0;
virtual int64_t GetPos() const noexcept = 0;
virtual int64_t GetConvergenceDuration() const noexcept = 0;
//! @post return value is not null
virtual std::unique_ptr<AVPacketWrapper> Clone() const noexcept = 0;
protected:
const FFmpegFunctions& mFFmpeg;
AVPacket* mAVPacket { nullptr };
bool mUseAVFree { true };
};
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