SSB_HighSpeed_Modem/hsmodem/audio_voice_wasapi.cpp

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2020-11-21 13:54:47 -05:00
/*
* High Speed modem to transfer data in a 2,7kHz SSB channel
* =========================================================
* Author: DJ0ABR
*
* (c) DJ0ABR
* www.dj0abr.de
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* audio.c ... very similar to audio.c but is used for Microphone / Loudspeaker
*
*/
#include "hsmodem.h"
void cap_write_fifo(float sample);
int pb_read_fifo(float* data, int elements);
void close_wasapi_voice();
DWORD CALLBACK PBcallback_wasapi_voice(void* buffer, DWORD length, void* user);
DWORD CALLBACK CAPcallback_wasapi_voice(void* buffer, DWORD length, void* user);
void cap_write_fifo_voice(float sample);
int pb_read_fifo_voice(float* data, int elements);
#define WASAPI_CHANNELS_VOICE 2
float minPBvol_voice = 0;
float maxPBvol_voice = 99;
float minCAPvol_voice = 0;
float maxCAPvol_voice = 99;
extern int openpbdev_voice;
extern int opencapdev_voice;
extern float softwareCAPvolume_voice;
int mic_channel_num = 2;
#ifdef _WIN32_
int init_wasapi_voice(int pbdev, int capdev)
{
int ret = 0;
close_wasapi_voice();
if (VoiceAudioMode == VOICEMODE_OFF) return 0; // Voice off
// ======= init PLAYBACK device ========
// initialize default output device
if (!BASS_WASAPI_Init(pbdev, VOICE_SAMPRATE, WASAPI_CHANNELS_VOICE, BASS_WASAPI_EXCLUSIVE, 0.1f, 0, PBcallback_wasapi_voice, NULL))
{
printf("Can't initialize wasapi voice output device: %d err:%d\n", pbdev, BASS_ErrorGetCode());
ret = 1;
}
else
{
// read real device number since a -1 cannot be started
int device = BASS_WASAPI_GetDevice();
if (device == -1)
{
printf("BASS_WASAPI_GetDevice_voice: %d err:%d\n", pbdev, BASS_ErrorGetCode());
ret = 1;
}
else
{
pbdev = device;
// read the possible volume settings
BASS_WASAPI_INFO info;
if (!BASS_WASAPI_GetInfo(&info))
{
printf("BASS_WASAPI_GetInfo: %d err:%d\n", pbdev, BASS_ErrorGetCode());
ret = 1;
}
else
{
minPBvol_voice = info.volmin;
maxPBvol_voice = info.volmax;
// start playback
if (!BASS_WASAPI_Start())
{
printf("BASS_WASAPI_Start voice: %d err:%d\n", pbdev, BASS_ErrorGetCode());
ret = 1;
}
else
openpbdev_voice = pbdev;
}
}
}
// ======= init CAPTURE device ========
// initalize default recording device
if (capdev == -1) capdev = -2; // cap: -2 is the default device for input
BOOL micret = false;
mic_channel_num = 2;
micret = BASS_WASAPI_Init(capdev, VOICE_SAMPRATE, mic_channel_num, BASS_WASAPI_EXCLUSIVE, 0.1f, 0, CAPcallback_wasapi_voice, NULL);
if (!micret)
{
micret = BASS_WASAPI_Init(capdev, VOICE_SAMPRATE, 1, BASS_WASAPI_EXCLUSIVE, 0.1f, 0, CAPcallback_wasapi_voice, NULL);
if (!micret)
{
printf("Can't initialize wasapi voice recording device: %d err:%d\n", capdev, BASS_ErrorGetCode());
ret |= 2;
}
else
{
mic_channel_num = 1;
}
}
if(micret)
{
printf("mic opened with %d channels\n", mic_channel_num);
// read real device number since a -2 cannot be started
int device = BASS_WASAPI_GetDevice();
if (device == -1)
{
printf("BASS_WASAPI_GetDevice: voice: %d err:%d\n", capdev, BASS_ErrorGetCode());
ret |= 2;
}
else
{
capdev = device;
// read the possible volume settings
BASS_WASAPI_INFO info;
if (!BASS_WASAPI_GetInfo(&info))
{
printf("BASS_WASAPI_GetInfo: %d err:%d\n", pbdev, BASS_ErrorGetCode());
ret |= 2;
}
else
{
minCAPvol_voice = info.volmin;
maxCAPvol_voice = info.volmax;
// start recording
if (!BASS_WASAPI_Start())
{
printf("BASS_WASAPI_Start voice: %d err:%d\n", capdev, BASS_ErrorGetCode());
ret |= 2;
}
else
opencapdev_voice = capdev;
}
}
}
if (ret == 0)
printf("wasapi voice started successfully for PBdev:%d and CAPdev:%d\n", openpbdev_voice, opencapdev_voice);
else
{
opencapdev_voice = -1;
openpbdev_voice = -1;
readAudioDevices();
}
if (ret == 1)
printf("wasapi voice initialized: PBerror CapOK\n");
if (ret == 2)
printf("wasapi voice initialized: PBOK CapERROR\n");
if (ret == 3)
printf("wasapi voice initialized: PBerror CapERROR\n");
return ret;
}
int selectPBdevice_wasapi_voice()
{
if (!BASS_WASAPI_SetDevice(openpbdev_voice))
{
printf("BASS_WASAPI_SetDevice VOICE: %d err:%d\n", openpbdev_voice, BASS_ErrorGetCode());
return 0;
}
return 1;
}
int selectCAPdevice_wasapi_voice()
{
if (!BASS_WASAPI_SetDevice(opencapdev_voice))
{
printf("BASS_WASAPI_SetDevice VOICE: %d err:%d\n", opencapdev_voice, BASS_ErrorGetCode());
return 0;
}
return 1;
}
void close_wasapi_voice()
{
printf("close WASAPI Voice Devices\n");
if (openpbdev_voice != -1)
{
if(selectPBdevice_wasapi_voice())
if (!BASS_WASAPI_Free()) printf("BASS_WASAPI_Free voice: dev:%d err:%d\n", openpbdev_voice, BASS_ErrorGetCode());
}
if (opencapdev_voice != -1)
{
if(selectCAPdevice_wasapi_voice())
if (!BASS_WASAPI_Free()) printf("BASS_WASAPI_Free voice: dev:%d err:%d\n", opencapdev_voice, BASS_ErrorGetCode());
}
printf("closed WASAPI Voice Devices\n");
}
void setLSvolume(int v)
{
// the volume comes in % 0..99
// map to min/maxPBvol
float vf = v * (maxPBvol_voice - minPBvol_voice) / 100 + minPBvol_voice;
if (vf < minPBvol_voice) vf = minPBvol_voice;
if (vf > maxPBvol_voice) vf = maxPBvol_voice;
//printf("set PB volume to:%d / %f [%f..%f]\n", v, vf, minPBvol_voice, maxPBvol_voice);
if(selectPBdevice_wasapi_voice())
if (!BASS_WASAPI_SetVolume(BASS_WASAPI_CURVE_DB, vf))
printf("setPBvolume: %d err:%d\n", openpbdev_voice, BASS_ErrorGetCode());
}
void setMICvolume(int v)
{
// non of the BASS input level functions are working in WASAPI exclusive mode
// so we adjust the input level by software
softwareCAPvolume_voice = (float)v;
softwareCAPvolume_voice /= 50;
}
DWORD CALLBACK PBcallback_wasapi_voice(void* buffer, DWORD length, void* user)
{
float* fbuffer = (float*)buffer;
int ret = pb_read_fifo_voice(fbuffer, length / sizeof(float));
if (ret == 0)
{
// fifo empty, send 00
memset(buffer, 0, length);
}
return length;
}
DWORD CALLBACK CAPcallback_wasapi_voice(void* buffer, DWORD length, void* user)
{
float* fbuffer = (float*)buffer;
for (unsigned int i = 0; i < (length / sizeof(float)); i += mic_channel_num)
{
cap_write_fifo_voice(fbuffer[i]);
}
return TRUE; // continue recording
}
#endif