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