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94 lines
4.3 KiB
C
94 lines
4.3 KiB
C
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/* ======================================================================================== */
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/* FMOD Core API - Codec development header file. */
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/* Copyright (c), Firelight Technologies Pty, Ltd. 2004-2020. */
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/* */
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/* Use this header if you are wanting to develop your own file format plugin to use with */
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/* FMOD's codec system. With this header you can make your own fileformat plugin that FMOD */
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/* can register and use. See the documentation and examples on how to make a working */
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/* plugin. */
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/* */
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/* For more detail visit: */
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/* https://fmod.com/resources/documentation-api?version=2.0&page=core-api.html */
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/* ======================================================================================== */
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#ifndef _FMOD_CODEC_H
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#define _FMOD_CODEC_H
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/*
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Codec types
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*/
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typedef struct FMOD_CODEC_STATE FMOD_CODEC_STATE;
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typedef struct FMOD_CODEC_WAVEFORMAT FMOD_CODEC_WAVEFORMAT;
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/*
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Codec constants
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*/
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#define FMOD_CODEC_WAVEFORMAT_VERSION 3
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/*
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Codec callbacks
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*/
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typedef FMOD_RESULT (F_CALLBACK *FMOD_CODEC_OPEN_CALLBACK) (FMOD_CODEC_STATE *codec_state, FMOD_MODE usermode, FMOD_CREATESOUNDEXINFO *userexinfo);
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typedef FMOD_RESULT (F_CALLBACK *FMOD_CODEC_CLOSE_CALLBACK) (FMOD_CODEC_STATE *codec_state);
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typedef FMOD_RESULT (F_CALLBACK *FMOD_CODEC_READ_CALLBACK) (FMOD_CODEC_STATE *codec_state, void *buffer, unsigned int samples_in, unsigned int *samples_out);
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typedef FMOD_RESULT (F_CALLBACK *FMOD_CODEC_GETLENGTH_CALLBACK) (FMOD_CODEC_STATE *codec_state, unsigned int *length, FMOD_TIMEUNIT lengthtype);
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typedef FMOD_RESULT (F_CALLBACK *FMOD_CODEC_SETPOSITION_CALLBACK) (FMOD_CODEC_STATE *codec_state, int subsound, unsigned int position, FMOD_TIMEUNIT postype);
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typedef FMOD_RESULT (F_CALLBACK *FMOD_CODEC_GETPOSITION_CALLBACK) (FMOD_CODEC_STATE *codec_state, unsigned int *position, FMOD_TIMEUNIT postype);
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typedef FMOD_RESULT (F_CALLBACK *FMOD_CODEC_SOUNDCREATE_CALLBACK) (FMOD_CODEC_STATE *codec_state, int subsound, FMOD_SOUND *sound);
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typedef FMOD_RESULT (F_CALLBACK *FMOD_CODEC_METADATA_CALLBACK) (FMOD_CODEC_STATE *codec_state, FMOD_TAGTYPE tagtype, char *name, void *data, unsigned int datalen, FMOD_TAGDATATYPE datatype, int unique);
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typedef FMOD_RESULT (F_CALLBACK *FMOD_CODEC_GETWAVEFORMAT_CALLBACK)(FMOD_CODEC_STATE *codec_state, int index, FMOD_CODEC_WAVEFORMAT *waveformat);
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/*
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Codec structures
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*/
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typedef struct FMOD_CODEC_DESCRIPTION
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{
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const char *name;
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unsigned int version;
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int defaultasstream;
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FMOD_TIMEUNIT timeunits;
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FMOD_CODEC_OPEN_CALLBACK open;
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FMOD_CODEC_CLOSE_CALLBACK close;
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FMOD_CODEC_READ_CALLBACK read;
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FMOD_CODEC_GETLENGTH_CALLBACK getlength;
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FMOD_CODEC_SETPOSITION_CALLBACK setposition;
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FMOD_CODEC_GETPOSITION_CALLBACK getposition;
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FMOD_CODEC_SOUNDCREATE_CALLBACK soundcreate;
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FMOD_CODEC_GETWAVEFORMAT_CALLBACK getwaveformat;
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} FMOD_CODEC_DESCRIPTION;
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struct FMOD_CODEC_WAVEFORMAT
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{
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const char* name;
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FMOD_SOUND_FORMAT format;
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int channels;
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int frequency;
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unsigned int lengthbytes;
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unsigned int lengthpcm;
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unsigned int pcmblocksize;
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int loopstart;
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int loopend;
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FMOD_MODE mode;
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FMOD_CHANNELMASK channelmask;
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FMOD_CHANNELORDER channelorder;
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float peakvolume;
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};
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struct FMOD_CODEC_STATE
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{
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int numsubsounds;
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FMOD_CODEC_WAVEFORMAT *waveformat;
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void *plugindata;
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void *filehandle;
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unsigned int filesize;
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FMOD_FILE_READ_CALLBACK fileread;
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FMOD_FILE_SEEK_CALLBACK fileseek;
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FMOD_CODEC_METADATA_CALLBACK metadata;
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int waveformatversion;
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};
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#endif
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