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/*
GameSpy Voice2 SDK
Dan "Mr. Pants" Schoenblum
dan@gamespy.com
Copyright 2004 GameSpy Industries, Inc
devsupport@gamespy.com
http://gamespy.net
*/
#ifndef _GV_DEVICE_H_
#define _GV_DEVICE_H_
#include "gvMain.h"
// amount of time to keep capturing even after voice drops below the capture threshold
// makes sure that speech that trails off, or slightly dips in volume, is still captured
#define GVI_HOLD_THRESHOLD_FRAMES 20
// buffer sizes for capture and playback
#define GVI_PLAYBACK_BUFFER_MILLISECONDS 200
#define GVI_CAPTURE_BUFFER_MILLISECONDS 1000
/***********
** DEVICE **
***********/
typedef struct
{
void (* m_freeDevice)(GVDevice device);
GVBool (* m_startDevice)(GVDevice device, GVDeviceType type);
void (* m_stopDevice)(GVDevice device, GVDeviceType type);
GVBool (* m_isDeviceStarted)(GVDevice device, GVDeviceType type);
void (* m_setDeviceVolume)(GVDevice device, GVDeviceType type, GVScalar volume);
GVScalar (* m_getDeviceVolume)(GVDevice device, GVDeviceType type);
void (* m_setCaptureThreshold)(GVDevice device, GVScalar threshold);
GVScalar (* m_getCaptureThreshold)(GVDevice device);
GVBool (*m_capturePacket)(GVDevice device, GVByte * packet, int * len, GVFrameStamp * frameStamp, GVScalar * volume);
int (* m_getAvailableCaptureBytes)(GVDevice device);
void (* m_playPacket)(GVDevice device, const GVByte * packet, int len, GVSource source, GVFrameStamp frameStamp, GVBool mute);
GVBool (* m_isSourceTalking)(GVDevice device, GVSource source);
int (* m_listTalkingSources)(GVDevice device, GVSource sources[], int maxSources);
int (* m_getNumChannels)(GVDevice device, GVDeviceType type);
void (* m_getChannelName)(GVDevice device, GVDeviceType type, int channel, gsi_char name[GV_CHANNEL_NAME_LEN]);
void (* m_setChannel)(GVDevice device, GVDeviceType type, int channel);
int (* m_getChannel)(GVDevice device, GVDeviceType type);
} GVIDeviceMethods;
typedef struct GVIDevice
{
GVDeviceID m_deviceID;
GVHardwareType m_hardwareType;
GVDeviceType m_types;
GVIDeviceMethods m_methods;
gvUnpluggedCallback m_unpluggedCallback;
gvFilterCallback m_captureFilterCallback;
gvFilterCallback m_playbackFilterCallback;
void * m_data;
GVCaptureMode m_captureMode;
GVScalar m_savedCaptureThreshold;
} GVIDevice;
GVIDevice * gviNewDevice(GVDeviceID deviceID, GVHardwareType hardwareType, GVDeviceType types, int dataSize);
void gviFreeDevice(GVIDevice * device);
void gviDeviceUnplugged(GVIDevice * device);
/****************
** DEVICE LIST **
****************/
typedef DArray GVIDeviceList;
GVIDeviceList gviNewDeviceList(ArrayElementFreeFn elemFreeFn);
void gviFreeDeviceList(GVIDeviceList devices);
void gviAppendDeviceToList(GVIDeviceList devices, GVIDevice * device);
void gviDeleteDeviceFromList(GVIDeviceList devices, GVIDevice * device);
int gviGetNumDevices(GVIDeviceList devices);
GVIDevice * gviGetDevice(GVIDeviceList devices, int index);
#endif
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