99 lines
1.8 KiB
C++
99 lines
1.8 KiB
C++
/*
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* Copyright 2009, Haiku Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _BUFFER_H
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#define _BUFFER_H
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#include <MediaDefs.h>
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namespace BPrivate {
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class BufferCache;
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class SharedBufferList;
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}
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struct buffer_clone_info {
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buffer_clone_info();
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~buffer_clone_info();
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media_buffer_id buffer;
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area_id area;
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size_t offset;
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size_t size;
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int32 flags;
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private:
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uint32 _reserved_[4];
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};
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class BBuffer {
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public:
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// flags
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enum {
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B_F1_BUFFER = 0x1,
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B_F2_BUFFER = 0x2,
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B_SMALL_BUFFER = 0x80000000
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};
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void* Data();
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size_t SizeAvailable();
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size_t SizeUsed();
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void SetSizeUsed(size_t used);
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uint32 Flags();
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void Recycle();
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buffer_clone_info CloneInfo() const;
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media_buffer_id ID();
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media_type Type();
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media_header* Header();
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media_audio_header* AudioHeader();
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media_video_header* VideoHeader();
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size_t Size();
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private:
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friend class BPrivate::BufferCache;
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friend class BPrivate::SharedBufferList;
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friend class BMediaRoster;
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friend class BBufferProducer;
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friend class BBufferConsumer;
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friend class BBufferGroup;
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friend class BSmallBuffer;
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explicit BBuffer(const buffer_clone_info& info);
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~BBuffer();
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BBuffer();
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BBuffer(const BBuffer& other);
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BBuffer& operator=(const BBuffer& other);
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// not implemented
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void SetHeader(const media_header* header);
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media_header fMediaHeader;
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BPrivate::SharedBufferList* fBufferList;
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area_id fArea;
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void* fData;
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size_t fOffset;
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size_t fSize;
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int32 fFlags;
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uint32 _reserved[12];
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};
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class BSmallBuffer : public BBuffer {
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public:
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BSmallBuffer();
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static size_t SmallBufferSizeLimit();
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};
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#endif // _BUFFER_H
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