104 lines
3.0 KiB
C++
104 lines
3.0 KiB
C++
/*
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base class for frames
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Copyright (C) 2001 Martin Vogt
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Library General Public License as published by
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the Free Software Foundation.
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For more information look at the file License.txt in this package
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*/
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//changes 8/11/2002 (by Hauke Duden):
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// - removed unnecessary includes
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#ifndef __FRAME_H
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#define __FRAME_H
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//#include <iostream.h>
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//#include <stdio.h>
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//#include <limits.h>
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//#include <stdlib.h>
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//#include <string.h>
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/**
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The base class for frames. Every derived class from this class
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must belong to some "major" class type and it must have an unique
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id for itsself. Even if it is a base class it must have a unique id.
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How does this work. We have an int for the Frame id. In the int
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itsself we but the majorid as well.
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The Start codes are all multiple of 2 so for example
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0..127 belongs to FRAME UNK
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128..255 belongs to FRAME RAW
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So we can with a simple shift operation find out the major class
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*/
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#define _FRAME_SHIFT 7
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#define _FRAME_ID_MAX 128 //(2^_FRAME_SHIFT)
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// Major Frame classes
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#define _FRAME_UNK 0
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#define _FRAME_RAW 1
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#define _FRAME_AUDIO 2
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#define _FRAME_VIDEO 3
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#define _FRAME_PAKET 4
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// start ids of minor classes
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#define _FRAME_UNK_START (0)
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#define _FRAME_RAW_START (_FRAME_ID_MAX)
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#define _FRAME_AUDIO_START (_FRAME_ID_MAX*2)
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#define _FRAME_VIDEO_START (_FRAME_ID_MAX*2*2)
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#define _FRAME_PAKET_START (_FRAME_ID_MAX*2*2*2)
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// Minor Frame type IDs
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// Raw
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#define _FRAME_RAW_BASE (_FRAME_RAW_START+1)
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#define _FRAME_RAW_OGG (_FRAME_RAW_START+2)
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#define _FRAME_RAW_MPEG_I_VIDEO (_FRAME_RAW_START+3)
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#define _FRAME_RAW_MPEG_SYSTEM (_FRAME_RAW_START+4)
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// Audio:
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#define _FRAME_AUDIO_BASE (_FRAME_AUDIO_START+1)
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#define _FRAME_AUDIO_PCM (_FRAME_AUDIO_START+2)
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#define _FRAME_AUDIO_FLOAT (_FRAME_AUDIO_START+3)
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// Video:
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#define _FRAME_VIDEO_BASE (_FRAME_VIDEO_START+1)
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#define _FRAME_VIDEO_YUV (_FRAME_VIDEO_START+2)
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#define _FRAME_VIDEO_RGB_8 (_FRAME_VIDEO_START+3)
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#define _FRAME_VIDEO_RGB_16 (_FRAME_VIDEO_START+4)
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#define _FRAME_VIDEO_RGB_32 (_FRAME_VIDEO_START+5)
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// Packet:
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#define _FRAME_PACKET_SYNC (_FRAME_PAKET_START+1)
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#define _FRAME_PACKET_PACKET_CONTAINER (_FRAME_PAKET_START+2)
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class Frame {
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int type;
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public:
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Frame();
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~Frame();
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inline int getMajorFrameType() { return (type>>_FRAME_SHIFT);}
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inline int getFrameType() { return type; }
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inline void setFrameType(int type) { this->type=type; }
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static const char* getMajorFrameName(int type);
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static const char* getFrameName(int type);
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};
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#endif
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