GitHub/dsd-fme
1
0
Fork 0
mirror of https://github.com/lwvmobile/dsd-fme.git synced 2026-11-13 01:07:24 -05:00
Code Issues Packages Projects Releases Wiki Activity
Files
15515158b5bf4f0284cd30f4d14550e34c604875
dsd-fme/src/dsd_audio2.c
lwvmobile 15515158b5 DMR: Add Support for Callta BP 10/32/64; #360 
DMR: Add optional discard value to -S straight_xor keystream application;
2026-09-20 04:31:06 -04:00

2380 lines
71 KiB
C
Raw Blame History

/*-------------------------------------------------------------------------------
*
*
*
* TODO: Fill me in'
*
*
* LWVMOBILE
* 2023-10 DSD-FME Florida Man Edition
*-----------------------------------------------------------------------------*/
#include "dsd.h"
#include <math.h>
//NOTE: Tones produce ringing sound when put through the hpf_d, may want to look into tweaking it,
//or looking for a way to store is_tone by glancing at ambe_d values and not running hpf_d on them
//TODO: WAV File saving (works fine on shorts, but on float, writing short to wav is not auto-gained,
//so super quiet, either convert to float wav files, or run processAudio AFTER memcpy of the temp_buf)
//simple method -- produces cleaner results, but can be muted (or very loud) at times
//has manual control only, no auto gain
// void agf (dsd_opts * opts, dsd_state * state, float samp[160], int slot)
// {
// int i;
// float mmax = 0.75f;
// float mmin = -0.75f;
// float df = 3276.7f;
// //Default gain value of 1.0f on audio_gain == 0
// float gain = 1.0f;
// //make it so that gain is 1.0f on 25.0f aout, and 2.0f on 50 aout
// if (opts->audio_gain != 0 && slot == 0)
// gain = state->aout_gain / 25.0f;
// if (opts->audio_gain != 0 && slot == 1)
// gain = state->aout_gainR / 25.0f;
// //mono output handles slightly different, need to further decimate
// if (opts->pulse_digi_out_channels == 1)
// df *= 4.0f;
// for (i = 0; i < 160; i++)
// {
// //simple decimation
// samp[i] /= df;
// samp[i] *= 0.65f;
// //simple clipping
// if (samp[i] > mmax)
// samp[i] = mmax;
// if (samp[i] < mmin)
// samp[i] = mmin;
// //user gain factor
// samp[i] *= gain;
// }
// }
//float stereo mix 3v2 DMR
void playSynthesizedVoiceFS3 (dsd_opts * opts, dsd_state * state)
{
//NOTE: This runs once for every two timeslots, if we are in the BS voice loop
//it doesn't matter if both slots have voice, or if one does, the slot without voice
//will play silence while this runs if no voice present
int i;
uint8_t encL, encR;
float stereo_samp1[320]; //8k 2-channel stereo interleave mix
float stereo_samp2[320]; //8k 2-channel stereo interleave mix
float stereo_samp3[320]; //8k 2-channel stereo interleave mix
memset (stereo_samp1, 0.0f, sizeof(stereo_samp1));
memset (stereo_samp2, 0.0f, sizeof(stereo_samp2));
memset (stereo_samp3, 0.0f, sizeof(stereo_samp3));
//dmr enc checkdown for whether or not to fill the stereo sample or not for playback or writing
encL = encR = 0;
encL = (state->dmr_so >> 6) & 0x1;
encR = (state->dmr_soR >> 6) & 0x1;
//checkdown to see if we can lift the 'mute' if a key is available
if (encL)
{
if (state->payload_algid == 0)
{
if (state->K != 0 || state->K1 != 0)
{
encL = 0;
}
else if (state->vtx_key_loaded == 1)
{
encL = 0;
}
}
else if (state->payload_algid == 0x02 || state->payload_algid == 0x21 || state->payload_algid == 0x22)
{
if (state->R != 0)
{
encL = 0;
}
}
else if (state->payload_algid == 0x24 || state->payload_algid == 0x25 || state->payload_algid == 0x36 || state->payload_algid == 0x37)
{
//going to need a better check for this later on, or seperated keys or something
if (state->aes_key_loaded[0] == 1)
{
encL = 0;
}
}
else if (state->payload_algid == 0x26)
{
if (state->straight_ks == 0x26)
{
encL = 0;
}
}
}
if (encR)
{
if (state->payload_algidR == 0)
{
if (state->K != 0 || state->K1 != 0)
{
encR = 0;
}
else if (state->vtx_key_loaded == 1)
{
encR = 0;
}
}
else if (state->payload_algidR == 0x02 ||state->payload_algidR == 0x21 || state->payload_algidR == 0x22)
{
if (state->RR != 0)
{
encR = 0;
}
}
else if (state->payload_algidR == 0x24 || state->payload_algidR == 0x25 || state->payload_algidR == 0x36 || state->payload_algidR == 0x37)
{
//going to need a better check for this later on, or seperated keys or something
if (state->aes_key_loaded[1] == 1)
{
encR = 0;
}
}
else if (state->payload_algidR == 0x26)
{
if (state->straight_ks == 0x26)
{
encL = 0;
}
}
}
//debug disable enc check for AES testing
// encL = 0;
// encR = 0;
//TODO: add option to bypass enc with a toggle as well
//CHEAT: Using the slot on/off, use that to set encL or encR back on
//as a simple way to turn off voice synthesis in a particular slot
//its not really 'disabled', we just aren't playing it
if (opts->slot1_on == 0) encL = 1;
if (opts->slot2_on == 0) encR = 1;
//WIP: Mute if on B list (or not W list)
char modeL[8];
sprintf (modeL, "%s", "");
char modeR[8];
sprintf (modeR, "%s", "");
int TGL = state->lasttg;
int TGR = state->lasttgR;
//if we are using allow/whitelist mode, then write 'B' to mode for block
//comparison below will look for an 'A' to write to mode if it is allowed
if (opts->trunk_use_allow_list == 1)
{
sprintf (modeL, "%s", "B");
sprintf (modeR, "%s", "B");
}
for (i = 0; i < state->group_tally; i++)
{
if (state->group_array[i].groupNumber == TGL)
{
strcpy (modeL, state->group_array[i].groupMode);
// break; //need to keep going to check other potential slot group
}
if (state->group_array[i].groupNumber == TGR)
{
strcpy (modeR, state->group_array[i].groupMode);
// break; //need to keep going to check other potential slot group
}
}
//flag either left or right as 'enc' to mute if B
if (strcmp(modeL, "B") == 0) encL = 1;
if (strcmp(modeR, "B") == 0) encR = 1;
//if TG Hold in place, mute anything but that TG #132
if (state->tg_hold != 0 && state->tg_hold != TGL) encL = 1;
if (state->tg_hold != 0 && state->tg_hold != TGR) encR = 1;
//likewise, override and unmute if TG hold matches TG
if (state->tg_hold != 0 && state->tg_hold == TGL) encL = 0;
if (state->tg_hold != 0 && state->tg_hold == TGR) encR = 0;
//run autogain on the f_ buffers
agf (opts, state, state->f_l4[0],0);
agf (opts, state, state->f_r4[0],1);
agf (opts, state, state->f_l4[1],0);
agf (opts, state, state->f_r4[1],1);
agf (opts, state, state->f_l4[2],0);
agf (opts, state, state->f_r4[2],1);
//interleave left and right channels from the temp (float) buffer with makeshift 'volume' decimation
for (i = 0; i < 160; i++)
{
if (!encL)
stereo_samp1[i*2+0] = state->f_l4[0][i];
if (!encR)
stereo_samp1[i*2+1] = state->f_r4[0][i];
}
for (i = 0; i < 160; i++)
{
if (!encL)
stereo_samp2[i*2+0] = state->f_l4[1][i];
if (!encR)
stereo_samp2[i*2+1] = state->f_r4[1][i];
}
for (i = 0; i < 160; i++)
{
if (!encL)
stereo_samp3[i*2+0] = state->f_l4[2][i];
if (!encR)
stereo_samp3[i*2+1] = state->f_r4[2][i];
}
//at this point, if both channels are still flagged as enc, then we can skip all playback/writing functions
if (encL && encR)
goto FS3_END;
if (opts->audio_out_type == 0) //Pulse Audio
{
pa_simple_write(opts->pulse_digi_dev_out, stereo_samp1, 320*4, NULL); //switch to sizeof(stereo_samp1) * 2?
pa_simple_write(opts->pulse_digi_dev_out, stereo_samp2, 320*4, NULL);
pa_simple_write(opts->pulse_digi_dev_out, stereo_samp3, 320*4, NULL);
}
if (opts->audio_out_type == 8) //UDP Audio
{
udp_socket_blaster (opts, state, 320*4, stereo_samp1);
udp_socket_blaster (opts, state, 320*4, stereo_samp2);
udp_socket_blaster (opts, state, 320*4, stereo_samp3);
}
//No OSS, since we can't use float output, but STDOUT can with play, aplay, etc
if (opts->audio_out_type == 1) //STDOUT (still need these seperated? or not really?)
{
write (opts->audio_out_fd, stereo_samp1, 320*4);
write (opts->audio_out_fd, stereo_samp2, 320*4);
write (opts->audio_out_fd, stereo_samp3, 320*4);
}
FS3_END:
memset (state->audio_out_temp_buf, 0.0f, sizeof(state->audio_out_temp_buf));
memset (state->audio_out_temp_bufR, 0.0f, sizeof(state->audio_out_temp_bufR));
//set float temp buffer to baseline
memset (state->f_l4, 0.0f, sizeof(state->f_l4));
memset (state->f_r4, 0.0f, sizeof(state->f_r4));
//if we don't run processAudio, then I don't think we really need any of the items below active
state->audio_out_idx = 0;
state->audio_out_idxR = 0;
if (state->audio_out_idx2 >= 800000)
{
state->audio_out_float_buf_p = state->audio_out_float_buf + 100;
state->audio_out_buf_p = state->audio_out_buf + 100;
memset (state->audio_out_float_buf, 0, 100 * sizeof (float));
memset (state->audio_out_buf, 0, 100 * sizeof (short));
state->audio_out_idx2 = 0;
}
if (state->audio_out_idx2R >= 800000)
{
state->audio_out_float_buf_pR = state->audio_out_float_bufR + 100;
state->audio_out_buf_pR = state->audio_out_bufR + 100;
memset (state->audio_out_float_bufR, 0, 100 * sizeof (float));
memset (state->audio_out_bufR, 0, 100 * sizeof (short));
state->audio_out_idx2R = 0;
}
}
//NOTE: On FS4 and SS4 voice, the longer the transmission, the more the function will start to lag
//the entire DSD-FME loop due to the skipping of playback on SACCH frames (causes noticeable skip when it does play them),
//this isn't a major problem, since the buffer can handle it, but it does delay return to CC until the end
//of the call on busy systems where both VCH slots are constantly busy with voice
//the longer the call, the more delayed until returning to the control channel
//NOTE: Disabling voice synthesis clears up the delay issue (obviosly since we aren't having to wait on it to play)
//disabling voice in only one slot will also fix most random stutter from the 4v in one slot, and 2v in the other slot
//NOTE: The same skip may be occurring on the main and v2.1b branches of DSD-FME as well, so that may be due to the 4v/2v and
//playing back immediately instead of buffering x number of samples or 4v/2v to get a smoother playback
//NOTE: When using capture bins for playback, this issue is not as observable compared to real time reception due to how fast
//we can blow through pure data on bin files compared to waiting for the real time reception
//its usually a lot more noticeable on dual voices than single (probably due to various arrangements of dual 4v/2v in each superframe)
//float stereo mix 4v2 P25p2
void playSynthesizedVoiceFS4 (dsd_opts * opts, dsd_state * state)
{
//NOTE: This will run for every TS % 2, except on SACCH inverted slots (10 and 11)
//WIP: Get the real TS number out of the P25p2 frame, and not our ts_counter values
int i, encL, encR;
float stereo_samp1[320]; //8k 2-channel stereo interleave mix
float stereo_samp2[320]; //8k 2-channel stereo interleave mix
float stereo_samp3[320]; //8k 2-channel stereo interleave mix
float stereo_samp4[320]; //8k 2-channel stereo interleave mix
float empty[320]; //this is used to see if we want to play a single 2v or double 2v or not
//p25p2 enc checkdown for whether or not to fill the stereo sample or not for playback or writing
encL = encR = 1;
if (state->payload_algid == 0 || state->payload_algid == 0x80)
encL = 0;
if (state->payload_algidR == 0 || state->payload_algidR == 0x80)
encR = 0;
//checkdown to see if we can lift the 'mute' if a key is available
if (encL)
{
if (state->payload_algid == 0xAA)
{
if (state->R != 0)
{
encL = 0;
}
}
else if (state->payload_algid == 0x81)
{
if (state->R != 0)
{
encL = 0;
}
}
else if (state->payload_algid == 0x84 || state->payload_algid == 0x89)
{
if (state->aes_key_loaded[0] == 1)
{
encL = 0;
}
}
}
if (encR)
{
if (state->payload_algidR == 0xAA)
{
if (state->RR != 0)
{
encR = 0;
}
}
else if (state->payload_algidR == 0x81)
{
if (state->R != 0)
{
encR = 0;
}
}
else if (state->payload_algidR == 0x84 || state->payload_algidR == 0x89)
{
if (state->aes_key_loaded[1] == 1)
{
encR = 0;
}
}
}
//CHEAT: Using the slot on/off, use that to set encL or encR back on
//as a simple way to turn off voice synthesis in a particular slot
//its not really 'disabled', we just aren't playing it
if (opts->slot1_on == 0) encL = 1;
if (opts->slot2_on == 0) encR = 1;
//WIP: Mute if on B list (or not W list)
char modeL[8];
sprintf (modeL, "%s", "");
char modeR[8];
sprintf (modeR, "%s", "");
int TGL = state->lasttg;
int TGR = state->lasttgR;
//if we are using allow/whitelist mode, then write 'B' to mode for block
//comparison below will look for an 'A' to write to mode if it is allowed
if (opts->trunk_use_allow_list == 1)
{
sprintf (modeL, "%s", "B");
sprintf (modeR, "%s", "B");
}
for (i = 0; i < state->group_tally; i++)
{
if (state->group_array[i].groupNumber == TGL)
{
strcpy (modeL, state->group_array[i].groupMode);
// break; //need to keep going to check other potential slot group
}
if (state->group_array[i].groupNumber == TGR)
{
strcpy (modeR, state->group_array[i].groupMode);
// break; //need to keep going to check other potential slot group
}
}
//flag either left or right as 'enc' to mute if B
if (strcmp(modeL, "B") == 0) encL = 1;
if (strcmp(modeR, "B") == 0) encR = 1;
//if TG Hold in place, mute anything but that TG #132
if (state->tg_hold != 0 && state->tg_hold != TGL) encL = 1;
if (state->tg_hold != 0 && state->tg_hold != TGR) encR = 1;
//likewise, override and unmute if TG hold matches TG
if (state->tg_hold != 0 && state->tg_hold == TGL) encL = 0;
if (state->tg_hold != 0 && state->tg_hold == TGR) encR = 0;
memset (stereo_samp1, 0.0f, sizeof(stereo_samp1));
memset (stereo_samp2, 0.0f, sizeof(stereo_samp2));
memset (stereo_samp3, 0.0f, sizeof(stereo_samp3));
memset (stereo_samp4, 0.0f, sizeof(stereo_samp4));
memset (empty, 0.0f, sizeof(empty));
//run autogain on the f_ buffers
agf (opts, state, state->f_l4[0],0);
agf (opts, state, state->f_r4[0],1);
agf (opts, state, state->f_l4[1],0);
agf (opts, state, state->f_r4[1],1);
agf (opts, state, state->f_l4[2],0); //doing 2 and 3 here will break the memcmp below, so we also do it on empty
agf (opts, state, state->f_r4[2],1);
agf (opts, state, state->f_l4[3],0);
agf (opts, state, state->f_r4[3],1);
agf (opts, state, empty,2); //running empty may invalidate the memcmp, ideally both this empty and an empty f_ should come out with the same result anyways
//interleave left and right channels from the temp (float) buffer with makeshift 'volume' decimation
for (i = 0; i < 160; i++)
{
if (!encL)
stereo_samp1[i*2+0] = state->f_l4[0][i]; // / ((float) 480.0f*10.0f)
if (!encR)
stereo_samp1[i*2+1] = state->f_r4[0][i];
}
for (i = 0; i < 160; i++)
{
if (!encL)
stereo_samp2[i*2+0] = state->f_l4[1][i];
if (!encR)
stereo_samp2[i*2+1] = state->f_r4[1][i];
}
for (i = 0; i < 160; i++)
{
if (!encL)
stereo_samp3[i*2+0] = state->f_l4[2][i];
if (!encR)
stereo_samp3[i*2+1] = state->f_r4[2][i];
}
for (i = 0; i < 160; i++)
{
if (!encL)
stereo_samp4[i*2+0] = state->f_l4[3][i];
if (!encR)
stereo_samp4[i*2+1] = state->f_r4[3][i];
}
if (encL && encR)
goto END_FS4;
if (opts->audio_out_type == 0) //Pulse Audio
{
pa_simple_write(opts->pulse_digi_dev_out, stereo_samp1, 320*4, NULL); //switch to sizeof(stereo_samp1) * 2?
pa_simple_write(opts->pulse_digi_dev_out, stereo_samp2, 320*4, NULL);
//only play these two if not a single 2v or double 2v (minor skip can still occur on a 4v and 2v combo, but will probably only be perceivable if one is a tone)
if (memcmp(empty, stereo_samp3, sizeof(empty)) != 0)
pa_simple_write(opts->pulse_digi_dev_out, stereo_samp3, 320*4, NULL);
if (memcmp(empty, stereo_samp4, sizeof(empty)) != 0)
pa_simple_write(opts->pulse_digi_dev_out, stereo_samp4, 320*4, NULL);
}
if (opts->audio_out_type == 8) //UDP Audio
{
udp_socket_blaster (opts, state, 320*4, stereo_samp1);
udp_socket_blaster (opts, state, 320*4, stereo_samp2);
//only play these two if not a single 2v or double 2v (minor skip can still occur on a 4v and 2v combo, but will probably only be perceivable if one is a tone)
if (memcmp(empty, stereo_samp3, sizeof(empty)) != 0)
udp_socket_blaster (opts, state, 320*4, stereo_samp3);
if (memcmp(empty, stereo_samp4, sizeof(empty)) != 0)
udp_socket_blaster (opts, state, 320*4, stereo_samp4);
}
//No OSS, since we can't use float output, but the STDOUT can with play, aplay, etc
if (opts->audio_out_type == 1) //STDOUT
{
write (opts->audio_out_fd, stereo_samp1, 320*4);
write (opts->audio_out_fd, stereo_samp2, 320*4);
//only play these two if not a single 2v or double 2v (minor skip can still occur on a 4v and 2v combo, but will probably only be perceivable if one is a tone)
if (memcmp(empty, stereo_samp3, sizeof(empty)) != 0)
write (opts->audio_out_fd, stereo_samp3, 320*4);
if (memcmp(empty, stereo_samp4, sizeof(empty)) != 0)
write (opts->audio_out_fd, stereo_samp4, 320*4);
}
END_FS4:
memset (state->audio_out_temp_buf, 0.0f, sizeof(state->audio_out_temp_buf));
memset (state->audio_out_temp_bufR, 0.0f, sizeof(state->audio_out_temp_bufR));
//set float temp buffer to baseline
memset (state->f_l4, 0.0f, sizeof(state->f_l4));
memset (state->f_r4, 0.0f, sizeof(state->f_r4));
//if we don't run processAudio, then I don't think we really need any of the items below active
state->audio_out_idx = 0;
state->audio_out_idxR = 0;
if (state->audio_out_idx2 >= 800000)
{
state->audio_out_float_buf_p = state->audio_out_float_buf + 100;
state->audio_out_buf_p = state->audio_out_buf + 100;
memset (state->audio_out_float_buf, 0, 100 * sizeof (float));
memset (state->audio_out_buf, 0, 100 * sizeof (short));
state->audio_out_idx2 = 0;
}
if (state->audio_out_idx2R >= 800000)
{
state->audio_out_float_buf_pR = state->audio_out_float_bufR + 100;
state->audio_out_buf_pR = state->audio_out_bufR + 100;
memset (state->audio_out_float_bufR, 0, 100 * sizeof (float));
memset (state->audio_out_bufR, 0, 100 * sizeof (short));
state->audio_out_idx2R = 0;
}
}
//float stereo mix -- when using Float Stereo Output, we need to send P25p1, DMR MS/Simplex, DStar, and YSF here
void playSynthesizedVoiceFS (dsd_opts * opts, dsd_state * state)
{
int i;
int encL;
float stereo_samp1[320]; //8k 2-channel stereo interleave mix
memset (stereo_samp1, 0.0f, sizeof(stereo_samp1));
//TODO: ENC Check on P25p1, DMR MS, etc
encL = 0;
//Enc Checkdown -- P25p1 when run with -ft -y switch
if (state->synctype == 0 || state->synctype == 1)
{
if (state->payload_algid != 0 && state->payload_algid != 0x80)
{
encL = 1;
}
}
//checkdown to see if we can lift the 'mute' if a key is available
if (encL)
{
if (state->payload_algid == 0xAA || state->payload_algid == 0x81 || state->payload_algid == 0x9F)
{
if (state->R != 0)
{
encL = 0;
}
}
else if (state->payload_algid == 0x84 || state->payload_algid == 0x89 || state->payload_algid == 0x83)
{
if (state->aes_key_loaded[0] == 1)
{
encL = 0;
}
}
}
//TODO: add option to bypass enc with a toggle as well
if (opts->slot1_on == 0) encL = 1;
//WIP: Mute if on B list (or not W list)
char modeL[8];
sprintf (modeL, "%s", "");
int TGL = state->lasttg;
//if we are using allow/whitelist mode, then write 'B' to mode for block
//comparison below will look for an 'A' to write to mode if it is allowed
if (opts->trunk_use_allow_list == 1)
sprintf (modeL, "%s", "B");
for (int i = 0; i < state->group_tally; i++)
{
if (state->group_array[i].groupNumber == TGL)
{
strcpy (modeL, state->group_array[i].groupMode);
break;
}
}
//flag either left or right as 'enc' to mute if B
if (strcmp(modeL, "B") == 0) encL = 1;
//if TG Hold in place, mute anything but that TG #132
if (state->tg_hold != 0 && state->tg_hold != TGL) encL = 1;
//likewise, override and unmute if TG hold matches TG
if (state->tg_hold != 0 && state->tg_hold == TGL) encL = 0;
//run autogain on the f_ buffers
agf (opts, state, state->f_l,0);
//at this point, if both channels are still flagged as enc, then we can skip all playback/writing functions
if (encL)
goto FS_END;
//interleave left and right channels from the temp (float) buffer with makeshift 'volume' decimation
for (i = 0; i < 160; i++)
{
if (!encL)
stereo_samp1[i*2+0] = state->f_l[i] * 0.5f;
//test loading right side with same
if (!encL)
stereo_samp1[i*2+1] = state->f_l[i] * 0.5f;
}
if (opts->audio_out_type == 0) //Pulse Audio
pa_simple_write(opts->pulse_digi_dev_out, stereo_samp1, 320*4, NULL); //switch to sizeof(stereo_samp1) * 2?
if (opts->audio_out_type == 8) //UDP Audio
udp_socket_blaster (opts, state, 320*4, stereo_samp1);
//No OSS, since we can't use float output, but STDOUT can with play, aplay, etc
if (opts->audio_out_type == 1)
write (opts->audio_out_fd, stereo_samp1, 320*4);
FS_END:
memset (state->audio_out_temp_buf, 0.0f, sizeof(state->audio_out_temp_buf));
memset (state->audio_out_temp_bufR, 0.0f, sizeof(state->audio_out_temp_bufR));
//set float temp buffer to baseline
memset (state->f_l4, 0.0f, sizeof(state->f_l4));
memset (state->f_r4, 0.0f, sizeof(state->f_r4));
//if we don't run processAudio, then I don't think we really need any of the items below active
state->audio_out_idx = 0;
state->audio_out_idxR = 0;
if (state->audio_out_idx2 >= 800000)
{
state->audio_out_float_buf_p = state->audio_out_float_buf + 100;
state->audio_out_buf_p = state->audio_out_buf + 100;
memset (state->audio_out_float_buf, 0, 100 * sizeof (float));
memset (state->audio_out_buf, 0, 100 * sizeof (short));
state->audio_out_idx2 = 0;
}
if (state->audio_out_idx2R >= 800000)
{
state->audio_out_float_buf_pR = state->audio_out_float_bufR + 100;
state->audio_out_buf_pR = state->audio_out_bufR + 100;
memset (state->audio_out_float_bufR, 0, 100 * sizeof (float));
memset (state->audio_out_bufR, 0, 100 * sizeof (short));
state->audio_out_idx2R = 0;
}
}
void playSynthesizedVoiceFM (dsd_opts * opts, dsd_state * state)
{
agf(opts, state, state->f_l,0);
//mono may need an additional decimation
// for (int i = 0; i < 160; i++)
// state->f_l[i] *= 0.5f;
int encL = 0;
//Enc Checkdown -- P25p1 when run with -ft -y switch
if (state->synctype == 0 || state->synctype == 1)
{
if (state->payload_algid != 0 && state->payload_algid != 0x80)
{
encL = 1;
}
}
//NXDN
if (state->nxdn_cipher_type != 0)
{
encL = 1;
}
//checkdown to see if we can lift the 'mute' if a key is available
if (encL)
{
if (state->payload_algid == 0xAA || state->payload_algid == 0x81 || state->payload_algid == 0x83 || state->payload_algid == 0x9F || state->nxdn_cipher_type == 0x1 || state->nxdn_cipher_type == 0x2)
{
if (state->R != 0)
{
encL = 0;
}
}
else if (state->payload_algid == 0x84 || state->payload_algid == 0x89 || state->nxdn_cipher_type == 0x3 || state->payload_algid == 0x36 || state->payload_algid == 0x37)
{
if (state->aes_key_loaded[0] == 1)
{
encL = 0;
}
}
}
//WIP: Mute if on B list (or not W list)
char modeL[8];
sprintf (modeL, "%s", "");
int TGL = state->lasttg;
if (opts->frame_nxdn48 == 1 || opts->frame_nxdn96 == 1)
TGL = state->nxdn_last_tg;
//if we are using allow/whitelist mode, then write 'B' to mode for block
//comparison below will look for an 'A' to write to mode if it is allowed
if (opts->trunk_use_allow_list == 1)
sprintf (modeL, "%s", "B");
for (int i = 0; i < state->group_tally; i++)
{
if (state->group_array[i].groupNumber == TGL)
{
strcpy (modeL, state->group_array[i].groupMode);
break;
}
}
//flag either left or right as 'enc' to mute if B
if (strcmp(modeL, "B") == 0) encL = 1;
//if TG Hold in place, mute anything but that TG #132
if (state->tg_hold != 0 && state->tg_hold != TGL) encL = 1;
//likewise, override and unmute if TG hold matches TG
if (state->tg_hold != 0 && state->tg_hold == TGL) encL = 0;
if (encL == 1)
goto vfm_end;
if (opts->slot1_on == 0)
goto vfm_end;
if (opts->audio_out_type == 0)
pa_simple_write(opts->pulse_digi_dev_out, state->f_l, 160*4, NULL);
if (opts->audio_out_type == 8) //UDP Audio
udp_socket_blaster (opts, state, 160*4, state->f_l);
if (opts->audio_out_type == 1 || opts->audio_out_type == 5)
write(opts->audio_out_fd, state->f_l, 160*4);
vfm_end:
if (state->audio_out_idx2 >= 800000)
{
state->audio_out_float_buf_p = state->audio_out_float_buf + 100;
state->audio_out_buf_p = state->audio_out_buf + 100;
memset (state->audio_out_float_buf, 0, 100 * sizeof (float));
memset (state->audio_out_buf, 0, 100 * sizeof (short));
state->audio_out_idx2 = 0;
}
memset (state->f_l, 0.0f, sizeof(state->f_l));
memset (state->audio_out_temp_buf, 0.0f, sizeof(state->audio_out_temp_buf));
}
//Mono - Short (SB16LE) - Drop-in replacement for playSyntesizedVoice, but easier to manipulate
void playSynthesizedVoiceMS (dsd_opts * opts, dsd_state * state)
{
int i;
size_t len = state->audio_out_idx;
//debug
// fprintf (stderr, " L LEN: %d", len);
short mono_samp[len];
memset (mono_samp, 0, len*sizeof(short));
if (opts->slot1_on == 0)
goto MS_END;
if (len == 160)
{
for (i = 0; i < len; i++)
mono_samp[i] = state->s_l[i];
}
else if (len == 960)
{
state->audio_out_buf_p -= 960; //rewind first
for (i = 0; i < len; i++)
{
mono_samp[i] = *state->audio_out_buf_p;
state->audio_out_buf_p++;
}
}
if (opts->use_hpf_d == 1)
hpf_dL(state, state->s_l, len);
if (opts->audio_out_type == 0) //Pulse Audio
pa_simple_write(opts->pulse_digi_dev_out, mono_samp, len*2, NULL);
if (opts->audio_out_type == 8) //UDP Audio
udp_socket_blaster (opts, state, len*2, mono_samp);
if (opts->audio_out_type == 1 || opts->audio_out_type == 2 || opts->audio_out_type == 5) //STDOUT or OSS
write (opts->audio_out_fd, mono_samp, len*2);
//this one needs testing w/ 48000 OSS output when audio is not split
if (opts->wav_out_f != NULL && opts->static_wav_file == 1)
{
//convert to stereo for new static wav file setup
short ss[320];
memset (ss, 0, sizeof(ss));
if (len == 160)
{
for (i = 0; i < 160; i++)
{
ss[(i*2)+0] = mono_samp[i];
ss[(i*2)+1] = mono_samp[i];
}
}
else if (len == 960)
{
for (i = 0; i < 160; i++)
{
ss[(i*2)+0] = mono_samp[i*6]; //grab every 6th sample to downsample
ss[(i*2)+1] = mono_samp[i*6]; //grab every 6th sample to downsample
}
}
sf_write_short(opts->wav_out_f, ss, 320);
}
MS_END:
//run cleanup since we pulled stuff from processAudio
state->audio_out_idx = 0;
//set short temp buffer to baseline
memset (state->s_l, 0, sizeof(state->s_l));
if (state->audio_out_idx2 >= 800000)
{
state->audio_out_float_buf_p = state->audio_out_float_buf + 100;
state->audio_out_buf_p = state->audio_out_buf + 100;
memset (state->audio_out_float_buf, 0, 100 * sizeof (float));
memset (state->audio_out_buf, 0, 100 * sizeof (short));
state->audio_out_idx2 = 0;
}
}
//Mono - Short (SB16LE) - Drop-in replacement for playSyntesizedVoiceR, but easier to manipulate
void playSynthesizedVoiceMSR (dsd_opts * opts, dsd_state * state)
{
int i;
size_t len = state->audio_out_idxR;
//debug
// fprintf (stderr, " R LEN: %d", len);
short mono_samp[len];
memset (mono_samp, 0, len*sizeof(short));
if (opts->slot2_on == 0)
goto MS_ENDR;
if (len == 160)
{
for (i = 0; i < len; i++)
mono_samp[i] = state->s_r[i];
}
else if (len == 960)
{
state->audio_out_buf_pR -= 960; //rewind first
for (i = 0; i < len; i++)
{
mono_samp[i] = *state->audio_out_buf_pR;
state->audio_out_buf_pR++;
}
}
if (opts->use_hpf_d == 1)
hpf_dR(state, mono_samp, len);
if (opts->audio_out_type == 0) //Pulse Audio
pa_simple_write(opts->pulse_digi_dev_out, mono_samp, len*2, NULL);
if (opts->audio_out_type == 8) //UDP Audio
udp_socket_blaster (opts, state, len*2, mono_samp);
if (opts->audio_out_type == 1 || opts->audio_out_type == 2 || opts->audio_out_type == 5) //STDOUT or OSS
write (opts->audio_out_fd, mono_samp, len*2);
//this one needs testing w/ 48000 OSS output when audio is not split
if (opts->wav_out_f != NULL && opts->static_wav_file == 1)
{
//convert to stereo for new static wav file setup
short ss[320];
memset (ss, 0, sizeof(ss));
if (len == 160)
{
for (i = 0; i < 160; i++)
{
ss[(i*2)+0] = mono_samp[i];
ss[(i*2)+1] = mono_samp[i];
}
}
else if (len == 960)
{
for (i = 0; i < 160; i++)
{
ss[(i*2)+0] = mono_samp[i*6]; //grab every 6th sample to downsample
ss[(i*2)+1] = mono_samp[i*6]; //grab every 6th sample to downsample
}
}
sf_write_short(opts->wav_out_f, ss, 320);
}
MS_ENDR:
//run cleanup since we pulled stuff from processAudioR
state->audio_out_idxR = 0;
//set short temp buffer to baseline
memset (state->s_r, 0, sizeof(state->s_r));
if (state->audio_out_idx2R >= 800000)
{
state->audio_out_float_buf_pR = state->audio_out_float_bufR + 100;
state->audio_out_buf_pR = state->audio_out_bufR + 100;
memset (state->audio_out_float_bufR, 0, 100 * sizeof (float));
memset (state->audio_out_bufR, 0, 100 * sizeof (short));
state->audio_out_idx2R = 0;
}
}
//Stereo Mix - Short (SB16LE) -- When Playing Short FDMA samples when setup for stereo output
void playSynthesizedVoiceSS (dsd_opts * opts, dsd_state * state)
{
int i;
int encL;
short stereo_samp1[320]; //8k 2-channel stereo interleave mix
memset (stereo_samp1, 0, sizeof(stereo_samp1));
//enc checkdown for whether or not to fill the stereo sample or not for playback or writing
encL = 0;
//Enc Checkdown -- P25p1 when run with -ft switch
if (state->synctype == 0 || state->synctype == 1)
{
if (state->payload_algid != 0 && state->payload_algid != 0x80)
{
encL = 1;
}
}
//checkdown to see if we can lift the 'mute' if a key is available
if (encL)
{
if (state->payload_algid == 0xAA || state->payload_algid == 0x81 || state->payload_algid == 0x9F || state->payload_algid == 0x83)
{
if (state->R != 0)
{
encL = 0;
}
}
else if (state->payload_algid == 0x84 || state->payload_algid == 0x89)
{
if (state->aes_key_loaded[0] == 1)
{
encL = 0;
}
}
}
//TODO: add option to bypass enc with a toggle as well
if (opts->slot1_on == 0) encL = 1;
//WIP: Mute if on B list (or not W list)
char modeL[8];
sprintf (modeL, "%s", "");
int TGL = state->lasttg;
//if we are using allow/whitelist mode, then write 'B' to mode for block
//comparison below will look for an 'A' to write to mode if it is allowed
if (opts->trunk_use_allow_list == 1)
sprintf (modeL, "%s", "B");
for (int i = 0; i < state->group_tally; i++)
{
if (state->group_array[i].groupNumber == TGL)
{
strcpy (modeL, state->group_array[i].groupMode);
break;
}
}
//flag either left or right as 'enc' to mute if B
if (strcmp(modeL, "B") == 0) encL = 1;
//if TG Hold in place, mute anything but that TG #132
if (state->tg_hold != 0 && state->tg_hold != TGL) encL = 1;
//likewise, override and unmute if TG hold matches TG
if (state->tg_hold != 0 && state->tg_hold == TGL) encL = 0;
//test hpf
if (opts->use_hpf_d == 1)
hpf_dL(state, state->s_l, 160);
//interleave left and right channels from the short storage area
for (i = 0; i < 160; i++)
{
if (!encL)
stereo_samp1[i*2+0] = state->s_l[i] / 1;
//testing double left and right channel
if (!encL)
stereo_samp1[i*2+1] = state->s_l[i] / 1;
}
//at this point, if still flagged as enc, then we can skip all playback/writing functions
if (encL)
goto SSM_END;
if (opts->audio_out_type == 0) //Pulse Audio
pa_simple_write(opts->pulse_digi_dev_out, stereo_samp1, 320*2, NULL);
if (opts->audio_out_type == 8) //UDP Audio
udp_socket_blaster (opts, state, 320*2, stereo_samp1);
if (opts->audio_out_type == 1 || opts->audio_out_type == 2) //STDOUT or OSS 8k/2
write (opts->audio_out_fd, stereo_samp1, 320*2);
if (opts->wav_out_f != NULL && opts->static_wav_file == 1)
sf_write_short(opts->wav_out_f, stereo_samp1, 320);
SSM_END:
//run cleanup since we pulled stuff from processAudio
state->audio_out_idx = 0;
state->audio_out_idxR = 0;
//set short temp buffer to baseline
memset (state->s_l, 0, sizeof(state->s_l));
memset (state->s_r, 0, sizeof(state->s_r));
if (state->audio_out_idx2 >= 800000)
{
state->audio_out_float_buf_p = state->audio_out_float_buf + 100;
state->audio_out_buf_p = state->audio_out_buf + 100;
memset (state->audio_out_float_buf, 0, 100 * sizeof (float));
memset (state->audio_out_buf, 0, 100 * sizeof (short));
state->audio_out_idx2 = 0;
}
if (state->audio_out_idx2R >= 800000)
{
state->audio_out_float_buf_pR = state->audio_out_float_bufR + 100;
state->audio_out_buf_pR = state->audio_out_bufR + 100;
memset (state->audio_out_float_bufR, 0, 100 * sizeof (float));
memset (state->audio_out_bufR, 0, 100 * sizeof (short));
state->audio_out_idx2R = 0;
}
}
//short stereo mix 3v2 DMR
void playSynthesizedVoiceSS3 (dsd_opts * opts, dsd_state * state)
{
//NOTE: This runs once for every two timeslots, if we are in the BS voice loop
//it doesn't matter if both slots have voice, or if one does, the slot without voice
//will play silence while this runs if no voice present
int i;
uint8_t encL, encR;
short stereo_samp1[320]; //8k 2-channel stereo interleave mix
short stereo_samp2[320]; //8k 2-channel stereo interleave mix
short stereo_samp3[320]; //8k 2-channel stereo interleave mix
memset (stereo_samp1, 0, sizeof(stereo_samp1));
memset (stereo_samp2, 0, sizeof(stereo_samp2));
memset (stereo_samp3, 0, sizeof(stereo_samp3));
//dmr enc checkdown for whether or not to fill the stereo sample or not for playback or writing
encL = encR = 0;
encL = (state->dmr_so >> 6) & 0x1;
encR = (state->dmr_soR >> 6) & 0x1;
//checkdown to see if we can lift the 'mute' if a key is available
if (encL)
{
if (state->payload_algid == 0)
{
if (state->K != 0 || state->K1 != 0)
{
encL = 0;
}
else if (state->vtx_key_loaded == 1)
{
encL = 0;
}
}
else if (state->payload_algid == 0x02 || state->payload_algid == 0x21 || state->payload_algid == 0x22)
{
if (state->R != 0)
{
encL = 0;
}
}
else if (state->payload_algid == 0x24 || state->payload_algid == 0x25 || state->payload_algid == 0x36 || state->payload_algid == 0x37)
{
//going to need a better check for this later on, or seperated keys or something
if (state->aes_key_loaded[0] == 1)
{
encL = 0;
}
}
else if (state->payload_algid == 0x26)
{
if (state->straight_ks == 0x26)
{
encL = 0;
}
}
}
if (encR)
{
if (state->payload_algidR == 0)
{
if (state->K != 0 || state->K1 != 0)
{
encR = 0;
}
else if (state->vtx_key_loaded == 1)
{
encR = 0;
}
}
else if (state->payload_algidR == 0x02 ||state->payload_algidR == 0x21 || state->payload_algidR == 0x22)
{
if (state->RR != 0)
{
encR = 0;
}
}
else if (state->payload_algidR == 0x24 || state->payload_algidR == 0x25 || state->payload_algidR == 0x36 || state->payload_algidR == 0x37)
{
//going to need a better check for this later on, or seperated keys or something
if (state->aes_key_loaded[1] == 1)
{
encR = 0;
}
}
else if (state->payload_algidR == 0x26)
{
if (state->straight_ks == 0x26)
{
encR = 0;
}
}
}
//debug for AES
// encL = encR = 0;
//TODO: add option to bypass enc with a toggle as well
//CHEAT: Using the slot on/off, use that to set encL or encR back on
//as a simple way to turn off voice synthesis in a particular slot
//its not really 'disabled', we just aren't playing it
// if (opts->slot1_on == 0) encL = 1;
// if (opts->slot2_on == 0) encR = 1;
//WIP: Mute if on B list (or not W list)
char modeL[8];
sprintf (modeL, "%s", "");
char modeR[8];
sprintf (modeR, "%s", "");
int TGL = state->lasttg;
int TGR = state->lasttgR;
//if we are using allow/whitelist mode, then write 'B' to mode for block
//comparison below will look for an 'A' to write to mode if it is allowed
if (opts->trunk_use_allow_list == 1)
{
sprintf (modeL, "%s", "B");
sprintf (modeR, "%s", "B");
}
for (i = 0; i < state->group_tally; i++)
{
if (state->group_array[i].groupNumber == TGL)
{
strcpy (modeL, state->group_array[i].groupMode);
// break; //need to keep going to check other potential slot group
}
if (state->group_array[i].groupNumber == TGR)
{
strcpy (modeR, state->group_array[i].groupMode);
// break; //need to keep going to check other potential slot group
}
}
//flag either left or right as 'enc' to mute if B
if (strcmp(modeL, "B") == 0) encL = 1;
if (strcmp(modeR, "B") == 0) encR = 1;
//check to see if we need to enable slot and toggle slot preference here
//this method will always favor slot 2 (this is a patch anyways, so....meh)
// if (strcmp(modeL, "A") == 0)
// {
// opts->slot1_on = 1;
// opts->slot_preference = 0;
// }
// if (strcmp(modeR, "A") == 0)
// {
// opts->slot2_on = 1;
// opts->slot_preference = 1;
// }
//check to see if we need to enable slot and toggle slot preference here
//if both groups allowed, then give no preference to either one (not sure this is needed now)
// if ( (strcmp(modeL, "A") == 0) && (strcmp(modeR, "A") == 0) )
// {
// opts->slot1_on = 1;
// opts->slot2_on = 1;
// opts->slot_preference = 2;
// }
// else if (strcmp(modeL, "A") == 0)
// {
// opts->slot1_on = 1;
// opts->slot_preference = 0;
// }
// else if (strcmp(modeR, "A") == 0)
// {
// opts->slot2_on = 1;
// opts->slot_preference = 1;
// }
// else //if any other condition, then give no preference to either one
// {
// opts->slot1_on = 1;
// opts->slot2_on = 1;
// opts->slot_preference = 2;
// }
//if TG Hold in place, mute anything but that TG #132
if (state->tg_hold != 0 && state->tg_hold != TGL)
encL = 1;
if (state->tg_hold != 0 && state->tg_hold != TGR)
encR = 1;
//likewise, override and unmute if TG hold matches TG (and turn on slot and set preference)
if (state->tg_hold != 0 && state->tg_hold == TGL)
{
encL = 0;
opts->slot1_on = 1;
opts->slot_preference = 0;
}
else if (state->tg_hold != 0 && state->tg_hold == TGR)
{
encR = 0;
opts->slot2_on = 1;
opts->slot_preference = 1;
}
else //otherwise, reset slot preference to either or (both slots enabled)
{
opts->slot_preference = 2;
}
//test hpf
if (opts->use_hpf_d == 1)
{
hpf_dL(state, state->s_l4[0], 160);
hpf_dL(state, state->s_l4[1], 160);
hpf_dL(state, state->s_l4[2], 160);
hpf_dR(state, state->s_r4[0], 160);
hpf_dR(state, state->s_r4[1], 160);
hpf_dR(state, state->s_r4[2], 160);
}
//convert the left or right channel to both channels if single voice under certain conditions, if defined to do so
#define DMR_STEREO_OUTPUT
#ifdef DMR_STEREO_OUTPUT
if (encL) memset (state->s_l4, 0, sizeof(state->s_l4));
if (encR) memset (state->s_r4, 0, sizeof(state->s_r4));
//this is for playing single voice over both channels, or when to keep them seperated
if (opts->slot1_on == 0 && opts->slot2_on == 1 && encR == 0) //slot 1 is hard off and slot 2 is on
memcpy (state->s_l4, state->s_r4, sizeof(state->s_l4)); //copy right to left
else if (opts->slot1_on == 1 && opts->slot2_on == 0 && encL == 0) //slot 2 is hard off and slot 1 is on
memcpy (state->s_r4, state->s_l4, sizeof(state->s_r4)); //copy left to right
else if (opts->slot_preference == 0 && state->dmrburstL == 16 && encL == 0) //slot 1 is preferred, and voice in slot 1
memcpy (state->s_r4, state->s_l4, sizeof(state->s_r4)); //copy left to right
else if (opts->slot_preference == 1 && state->dmrburstR == 16 && encR == 0) //slot 2 is preferred, and voice in slot 2
memcpy (state->s_l4, state->s_r4, sizeof(state->s_l4)); //copy right to left
else if (state->dmrburstL == 16 && state->dmrburstR != 16 && encL == 0) //voice in left, no voice in right
memcpy (state->s_r4, state->s_l4, sizeof(state->s_r4)); //copy left to right
else if (state->dmrburstR == 16 && state->dmrburstL != 16 && encR == 0) //voice in right, no voice in left
memcpy (state->s_l4, state->s_r4, sizeof(state->s_l4)); //copy right to left
//else if voice in both, and both slots on, and no preference on slot, then regular stereo interleave (left and right channels)
//if both slots are the same now, then let's decimate the audio to keep the audio level consistent
// if (memcmp (state->s_l4, state->s_r4, sizeof(state->s_l4)) == 0)
// {
// for (int j = 0; j < 3; j++)
// {
// for (i = 0; i < 160; i++)
// {
// state->s_l4[j][i] *= 0.85;
// state->s_r4[j][i] *= 0.85;
// }
// }
// }
#endif
//check this last
if (opts->slot1_on == 0 && opts->slot2_on == 0) //both slots are hard off, disable playback
{
encL = 1;
encR = 1;
}
//at this point, if both channels are still flagged as enc, then we can skip all playback/writing functions
if (encL && encR)
goto SS3_END;
//test hpf
// if (opts->use_hpf_d == 1)
// {
// hpf_dL(state, state->s_l4[0], 160);
// hpf_dL(state, state->s_l4[1], 160);
// hpf_dL(state, state->s_l4[2], 160);
// hpf_dR(state, state->s_r4[0], 160);
// hpf_dR(state, state->s_r4[1], 160);
// hpf_dR(state, state->s_r4[2], 160);
// }
//interleave left and right channels from the short storage area
for (i = 0; i < 160; i++)
{
#ifdef DMR_STEREO_OUTPUT
#else
if (!encL)
#endif
stereo_samp1[i*2+0] = state->s_l4[0][i];
#ifdef DMR_STEREO_OUTPUT
#else
if (!encR)
#endif
stereo_samp1[i*2+1] = state->s_r4[0][i];
}
for (i = 0; i < 160; i++)
{
#ifdef DMR_STEREO_OUTPUT
#else
if (!encL)
#endif
stereo_samp2[i*2+0] = state->s_l4[1][i];
#ifdef DMR_STEREO_OUTPUT
#else
if (!encR)
#endif
stereo_samp2[i*2+1] = state->s_r4[1][i];
}
for (i = 0; i < 160; i++)
{
#ifdef DMR_STEREO_OUTPUT
#else
if (!encL)
#endif
stereo_samp3[i*2+0] = state->s_l4[2][i];
#ifdef DMR_STEREO_OUTPUT
#else
if (!encR)
#endif
stereo_samp3[i*2+1] = state->s_r4[2][i];
}
if (opts->audio_out_type == 0) //Pulse Audio
{
pa_simple_write(opts->pulse_digi_dev_out, stereo_samp1, 320*2, NULL);
pa_simple_write(opts->pulse_digi_dev_out, stereo_samp2, 320*2, NULL);
pa_simple_write(opts->pulse_digi_dev_out, stereo_samp3, 320*2, NULL);
}
if (opts->audio_out_type == 8) //UDP Audio
{
udp_socket_blaster (opts, state, 320*2, stereo_samp1);
udp_socket_blaster (opts, state, 320*2, stereo_samp2);
udp_socket_blaster (opts, state, 320*2, stereo_samp3);
}
if (opts->audio_out_type == 1 || opts->audio_out_type == 2) //STDOUT or OSS 8k/2channel
{
write (opts->audio_out_fd, stereo_samp1, 320*2);
write (opts->audio_out_fd, stereo_samp2, 320*2);
write (opts->audio_out_fd, stereo_samp3, 320*2);
}
if (opts->wav_out_f != NULL && opts->static_wav_file == 1)
{
sf_write_short(opts->wav_out_f, stereo_samp1, 320);
sf_write_short(opts->wav_out_f, stereo_samp2, 320);
sf_write_short(opts->wav_out_f, stereo_samp3, 320);
}
SS3_END:
//run cleanup since we pulled stuff from processAudio
state->audio_out_idx = 0;
state->audio_out_idxR = 0;
//set short temp buffer to baseline
memset (state->s_l4, 0, sizeof(state->s_l4));
memset (state->s_r4, 0, sizeof(state->s_r4));
if (state->audio_out_idx2 >= 800000)
{
state->audio_out_float_buf_p = state->audio_out_float_buf + 100;
state->audio_out_buf_p = state->audio_out_buf + 100;
memset (state->audio_out_float_buf, 0, 100 * sizeof (float));
memset (state->audio_out_buf, 0, 100 * sizeof (short));
state->audio_out_idx2 = 0;
}
if (state->audio_out_idx2R >= 800000)
{
state->audio_out_float_buf_pR = state->audio_out_float_bufR + 100;
state->audio_out_buf_pR = state->audio_out_bufR + 100;
memset (state->audio_out_float_bufR, 0, 100 * sizeof (float));
memset (state->audio_out_bufR, 0, 100 * sizeof (short));
state->audio_out_idx2R = 0;
}
}
//short stereo mix 4v2 P25p2
void playSynthesizedVoiceSS4 (dsd_opts * opts, dsd_state * state)
{
//NOTE: This runs once for every two timeslots, if we are in the BS voice loop
//it doesn't matter if both slots have voice, or if one does, the slot without voice
//will play silence while this runs if no voice present
int i;
uint8_t encL, encR;
short stereo_samp1[320]; //8k 2-channel stereo interleave mix
short stereo_samp2[320]; //8k 2-channel stereo interleave mix
short stereo_samp3[320]; //8k 2-channel stereo interleave mix
short stereo_samp4[320];
short empss[160]; //this is used to see if we want to run HPF on an empty set
short empty[320]; //this is used to see if we want to play a single 2v or double 2v or not
memset (stereo_samp1, 0, sizeof(stereo_samp1));
memset (stereo_samp2, 0, sizeof(stereo_samp2));
memset (stereo_samp3, 0, sizeof(stereo_samp3));
memset (stereo_samp4, 0, sizeof(stereo_samp4));
memset (empty, 0, sizeof(empty));
memset (empss, 0, sizeof(empss));
//p25p2 enc checkdown for whether or not to fill the stereo sample or not for playback or writing
encL = encR = 1;
if (state->payload_algid == 0 || state->payload_algid == 0x80)
encL = 0;
if (state->payload_algidR == 0 || state->payload_algidR == 0x80)
encR = 0;
//checkdown to see if we can lift the 'mute' if a key is available
if (encL)
{
if (state->payload_algid == 0xAA)
{
if (state->R != 0)
{
encL = 0;
}
}
else if (state->payload_algid == 0x81)
{
if (state->R != 0)
{
encL = 0;
}
}
else if (state->payload_algid == 0x84 || state->payload_algid == 0x89)
{
if (state->aes_key_loaded[0] == 1)
{
encL = 0;
}
}
}
if (encR)
{
if (state->payload_algidR == 0xAA)
{
if (state->RR != 0)
{
encR = 0;
}
}
else if (state->payload_algidR == 0x81)
{
if (state->R != 0)
{
encR = 0;
}
}
else if (state->payload_algidR == 0x84 || state->payload_algidR == 0x89)
{
if (state->aes_key_loaded[1] == 1)
{
encR = 0;
}
}
}
//TODO: add option to bypass enc with a toggle as well
//CHEAT: Using the slot on/off, use that to set encL or encR back on
//as a simple way to turn off voice synthesis in a particular slot
//its not really 'disabled', we just aren't playing it
if (opts->slot1_on == 0) encL = 1;
if (opts->slot2_on == 0) encR = 1;
//WIP: Mute if on B list (or not W list)
char modeL[8];
sprintf (modeL, "%s", "");
char modeR[8];
sprintf (modeR, "%s", "");
int TGL = state->lasttg;
int TGR = state->lasttgR;
//if we are using allow/whitelist mode, then write 'B' to mode for block
//comparison below will look for an 'A' to write to mode if it is allowed
if (opts->trunk_use_allow_list == 1)
{
sprintf (modeL, "%s", "B");
sprintf (modeR, "%s", "B");
}
for (i = 0; i < state->group_tally; i++)
{
if (state->group_array[i].groupNumber == TGL)
{
strcpy (modeL, state->group_array[i].groupMode);
// break; //need to keep going to check other potential slot group
}
if (state->group_array[i].groupNumber == TGR)
{
strcpy (modeR, state->group_array[i].groupMode);
// break; //need to keep going to check other potential slot group
}
}
//flag either left or right as 'enc' to mute if B
if (strcmp(modeL, "B") == 0) encL = 1;
if (strcmp(modeR, "B") == 0) encR = 1;
//if TG Hold in place, mute anything but that TG #132
if (state->tg_hold != 0 && state->tg_hold != TGL) encL = 1;
if (state->tg_hold != 0 && state->tg_hold != TGR) encR = 1;
//likewise, override and unmute if TG hold matches TG
if (state->tg_hold != 0 && state->tg_hold == TGL) encL = 0;
if (state->tg_hold != 0 && state->tg_hold == TGR) encR = 0;
//test hpf
if (opts->use_hpf_d == 1)
{
hpf_dL(state, state->s_l4[0], 160);
hpf_dL(state, state->s_l4[1], 160);
if (memcmp(empss, state->s_l4[2], sizeof(empss)) != 0)
hpf_dL(state, state->s_l4[2], 160);
if (memcmp(empss, state->s_l4[3], sizeof(empss)) != 0)
hpf_dL(state, state->s_l4[3], 160);
hpf_dR(state, state->s_r4[0], 160);
hpf_dR(state, state->s_r4[1], 160);
if (memcmp(empss, state->s_r4[2], sizeof(empss)) != 0)
hpf_dR(state, state->s_r4[2], 160);
if (memcmp(empss, state->s_r4[3], sizeof(empss)) != 0)
hpf_dR(state, state->s_r4[3], 160);
}
//interleave left and right channels from the short storage area
for (i = 0; i < 160; i++)
{
if (!encL)
stereo_samp1[i*2+0] = state->s_l4[0][i];
if (!encR)
stereo_samp1[i*2+1] = state->s_r4[0][i];
}
for (i = 0; i < 160; i++)
{
if (!encL)
stereo_samp2[i*2+0] = state->s_l4[1][i];
if (!encR)
stereo_samp2[i*2+1] = state->s_r4[1][i];
}
for (i = 0; i < 160; i++)
{
if (!encL)
stereo_samp3[i*2+0] = state->s_l4[2][i];
if (!encR)
stereo_samp3[i*2+1] = state->s_r4[2][i];
}
for (i = 0; i < 160; i++)
{
if (!encL)
stereo_samp4[i*2+0] = state->s_l4[3][i];
if (!encR)
stereo_samp4[i*2+1] = state->s_r4[3][i];
}
//at this point, if both channels are still flagged as enc, then we can skip all playback/writing functions
if (encL && encR)
goto SS4_END;
if (opts->audio_out_type == 0) //Pulse Audio
{
pa_simple_write(opts->pulse_digi_dev_out, stereo_samp1, 320*2, NULL);
pa_simple_write(opts->pulse_digi_dev_out, stereo_samp2, 320*2, NULL);
//only play these two if not a single 2v or double 2v (minor skip can still occur on a 4v and 2v combo, but will probably only be perceivable if one is a tone)
if (memcmp(empty, stereo_samp3, sizeof(empty)) != 0)
pa_simple_write(opts->pulse_digi_dev_out, stereo_samp3, 320*2, NULL);
if (memcmp(empty, stereo_samp4, sizeof(empty)) != 0)
pa_simple_write(opts->pulse_digi_dev_out, stereo_samp4, 320*2, NULL);
}
if (opts->audio_out_type == 8) //UDP Audio
{
udp_socket_blaster (opts, state, 320*2, stereo_samp1);
udp_socket_blaster (opts, state, 320*2, stereo_samp2);
//only play these two if not a single 2v or double 2v (minor skip can still occur on a 4v and 2v combo, but will probably only be perceivable if one is a tone)
if (memcmp(empty, stereo_samp3, sizeof(empty)) != 0)
udp_socket_blaster (opts, state, 320*2, stereo_samp3);
if (memcmp(empty, stereo_samp4, sizeof(empty)) != 0)
udp_socket_blaster (opts, state, 320*2, stereo_samp4);
}
if (opts->audio_out_type == 1 || opts->audio_out_type == 2) //STDOUT or OSS 8k/2channel
{
write (opts->audio_out_fd, stereo_samp1, 320*2);
write (opts->audio_out_fd, stereo_samp2, 320*2);
//only play these two if not a single 2v or double 2v
if (memcmp(empty, stereo_samp3, sizeof(empty)) != 0)
write (opts->audio_out_fd, stereo_samp3, 320*2);
if (memcmp(empty, stereo_samp4, sizeof(empty)) != 0)
write (opts->audio_out_fd, stereo_samp4, 320*2);
}
if (opts->wav_out_f != NULL && opts->static_wav_file == 1)
{
sf_write_short(opts->wav_out_f, stereo_samp1, 320);
sf_write_short(opts->wav_out_f, stereo_samp2, 320);
//only write these two if not a single 2v or double 2v
if (memcmp(empty, stereo_samp3, sizeof(empty)) != 0)
sf_write_short(opts->wav_out_f, stereo_samp3, 320);
if (memcmp(empty, stereo_samp4, sizeof(empty)) != 0)
sf_write_short(opts->wav_out_f, stereo_samp4, 320);
}
SS4_END:
//run cleanup since we pulled stuff from processAudio
state->audio_out_idx = 0;
state->audio_out_idxR = 0;
//set short temp buffer to baseline
memset (state->s_l4, 0, sizeof(state->s_l4));
memset (state->s_r4, 0, sizeof(state->s_r4));
if (state->audio_out_idx2 >= 800000)
{
state->audio_out_float_buf_p = state->audio_out_float_buf + 100;
state->audio_out_buf_p = state->audio_out_buf + 100;
memset (state->audio_out_float_buf, 0, 100 * sizeof (float));
memset (state->audio_out_buf, 0, 100 * sizeof (short));
state->audio_out_idx2 = 0;
}
if (state->audio_out_idx2R >= 800000)
{
state->audio_out_float_buf_pR = state->audio_out_float_bufR + 100;
state->audio_out_buf_pR = state->audio_out_bufR + 100;
memset (state->audio_out_float_bufR, 0, 100 * sizeof (float));
memset (state->audio_out_bufR, 0, 100 * sizeof (short));
state->audio_out_idx2R = 0;
}
}
//short stereo mix 18v superframe
void playSynthesizedVoiceSS18 (dsd_opts * opts, dsd_state * state)
{
//NOTE: This will run once every superframe during a sacch field
//exact implementation to be determined
int i, j;
uint8_t encL, encR;
short stereo_sf[18][320]; //8k 2-channel stereo interleave mix for full superframe
// memset (stereo_sf, 1, 18*sizeof(short)); //I don't think 18*sizeof(short) was large enough, should probably be 18*320*sizeof(short)
memset (stereo_sf, 0, sizeof(stereo_sf));
short empty[320];
memset (empty, 0, sizeof(empty));
//p25p2 enc checkdown for whether or not to fill the stereo sample or not for playback or writing
encL = encR = 1;
if (state->payload_algid == 0 || state->payload_algid == 0x80)
encL = 0;
if (state->payload_algidR == 0 || state->payload_algidR == 0x80)
encR = 0;
//checkdown to see if we can lift the 'mute' if a key is available
if (encL)
{
//RC4 or DES
if (state->payload_algid == 0xAA || state->payload_algid == 0x81)
{
if (state->R != 0)
{
encL = 0;
}
}
//AES
if (state->payload_algid == 0x84 || state->payload_algid == 0x89)
{
if (state->aes_key_loaded[0] == 1)
{
encL = 0;
}
}
}
if (encR)
{
//RC4 or DES
if (state->payload_algidR == 0xAA || state->payload_algidR == 0x81)
{
if (state->RR != 0)
{
encR = 0;
}
}
//AES
if (state->payload_algidR == 0x84 || state->payload_algidR == 0x89)
{
if (state->aes_key_loaded[1] == 1)
{
encR = 0;
}
}
}
//debug, unmute both slots
// encL = 0;
// encR = 0;
//WIP: Mute if on B list (or not W list)
char modeL[8];
sprintf (modeL, "%s", "");
char modeR[8];
sprintf (modeR, "%s", "");
int TGL = state->lasttg;
int TGR = state->lasttgR;
//if we are using allow/whitelist mode, then write 'B' to mode for block
//comparison below will look for an 'A' to write to mode if it is allowed
if (opts->trunk_use_allow_list == 1)
{
sprintf (modeL, "%s", "B");
sprintf (modeR, "%s", "B");
}
for (i = 0; i < state->group_tally; i++)
{
if (state->group_array[i].groupNumber == TGL)
{
strcpy (modeL, state->group_array[i].groupMode);
// break; //need to keep going to check other potential slot group
}
if (state->group_array[i].groupNumber == TGR)
{
strcpy (modeR, state->group_array[i].groupMode);
// break; //need to keep going to check other potential slot group
}
}
//flag either left or right as 'enc' to mute if B
if (strcmp(modeL, "B") == 0) encL = 1;
if (strcmp(modeR, "B") == 0) encR = 1;
//check to see if we need to enable slot and toggle slot preference here
//this method will always favor slot 2 (this is a patch anyways, so....meh)
// if (strcmp(modeL, "A") == 0)
// {
// opts->slot1_on = 1;
// opts->slot_preference = 0;
// }
// if (strcmp(modeR, "A") == 0)
// {
// opts->slot2_on = 1;
// opts->slot_preference = 1;
// }
//check to see if we need to enable slot and toggle slot preference here
//if both groups allowed, then give no preference to either one (not sure this is needed now)
// if ( (strcmp(modeL, "A") == 0) && (strcmp(modeR, "A") == 0) )
// {
// opts->slot1_on = 1;
// opts->slot2_on = 1;
// opts->slot_preference = 2;
// }
// else if (strcmp(modeL, "A") == 0)
// {
// opts->slot1_on = 1;
// opts->slot_preference = 0;
// }
// else if (strcmp(modeR, "A") == 0)
// {
// opts->slot2_on = 1;
// opts->slot_preference = 1;
// }
// else //if any other condition, then give no preference to either one
// {
// opts->slot1_on = 1;
// opts->slot2_on = 1;
// opts->slot_preference = 2;
// }
//if TG Hold in place, mute anything but that TG #132
if (state->tg_hold != 0 && state->tg_hold != TGL)
encL = 1;
if (state->tg_hold != 0 && state->tg_hold != TGR)
encR = 1;
//likewise, override and unmute if TG hold matches TG (and turn on slot and set preference)
if (state->tg_hold != 0 && state->tg_hold == TGL)
{
encL = 0;
opts->slot1_on = 1;
opts->slot_preference = 0;
}
else if (state->tg_hold != 0 && state->tg_hold == TGR)
{
encR = 0;
opts->slot2_on = 1;
opts->slot_preference = 1;
}
else //otherwise, reset slot preference to either or (both slots enabled)
{
opts->slot_preference = 2;
}
//run hpf_d filter, if enabled
if (opts->use_hpf_d == 1)
{
for (j = 0; j < 18; j++)
{
hpf_dL(state, state->s_l4[j], 160);
hpf_dR(state, state->s_r4[j], 160);
}
}
//convert the left or right channel to both channels if single voice under certain conditions, if defined to do so
#define P2_STEREO_OUTPUT
#ifdef P2_STEREO_OUTPUT
if (encL) memset (state->s_l4, 0, sizeof(state->s_l4));
if (encR) memset (state->s_r4, 0, sizeof(state->s_r4));
//this is for playing single voice over both channels, or when to keep them seperated
if (opts->slot1_on == 0 && opts->slot2_on == 1 && encR == 0) //slot 1 is hard off and slot 2 is on
memcpy (state->s_l4, state->s_r4, sizeof(state->s_l4)); //copy right to left
else if (opts->slot1_on == 1 && opts->slot2_on == 0 && encL == 0) //slot 2 is hard off and slot 1 is on
memcpy (state->s_r4, state->s_l4, sizeof(state->s_r4)); //copy left to right
else if (opts->slot_preference == 0 && state->dmrburstL == 21 && encL == 0) //slot 1 is preferred, and voice in slot 1
memcpy (state->s_r4, state->s_l4, sizeof(state->s_r4)); //copy left to right
else if (opts->slot_preference == 1 && state->dmrburstR == 21 && encR == 0) //slot 2 is preferred, and voice in slot 2
memcpy (state->s_l4, state->s_r4, sizeof(state->s_l4)); //copy right to left
else if (state->dmrburstL == 21 && state->dmrburstR != 21 && encL == 0) //voice in left, no voice in right
memcpy (state->s_r4, state->s_l4, sizeof(state->s_r4)); //copy left to right
else if (state->dmrburstR == 21 && state->dmrburstL != 21 && encR == 0) //voice in right, no voice in left
memcpy (state->s_l4, state->s_r4, sizeof(state->s_l4)); //copy right to left
//else if voice in both, and both slots on, and no preference on slot, then regular stereo interleave (left and right channels)
//if both slots are the same now, then let's decimate the audio to keep the audio level consistent
// if (memcmp (state->s_l4, state->s_r4, sizeof(state->s_l4)) == 0)
// {
// for (j = 0; j < 18; j++)
// {
// for (i = 0; i < 160; i++)
// {
// state->s_l4[j][i] *= 0.85;
// state->s_r4[j][i] *= 0.85;
// }
// }
// }
#endif
//check this last
if (opts->slot1_on == 0 && opts->slot2_on == 0) //both slots are hard off, disable playback
{
encL = 1;
encR = 1;
}
//at this point, if both channels are still flagged as enc, then we can skip all playback/writing functions
if (encL && encR)
goto SS18_END;
//interleave left and right channels from the short storage area
for (j = 0; j < 18; j++)
{
for (i = 0; i < 160; i++)
{
#ifdef P2_STEREO_OUTPUT
#else
if (!encL)
#endif
stereo_sf[j][i*2+0] = state->s_l4[j][i];
#ifdef P2_STEREO_OUTPUT
#else
if (!encR)
#endif
stereo_sf[j][i*2+1] = state->s_r4[j][i];
}
}
if (opts->audio_out_type == 0) //Pulse Audio
{
for (j = 0; j < 18; j++)
{
if (memcmp(empty, stereo_sf[j], sizeof(empty)) != 0) //may not work as intended because its stereo and one will have something in it most likely
pa_simple_write(opts->pulse_digi_dev_out, stereo_sf[j], 320*2, NULL);
}
}
if (opts->audio_out_type == 8) //UDP Audio
{
for (j = 0; j < 18; j++)
{
if (memcmp(empty, stereo_sf[j], sizeof(empty)) != 0) //may not work as intended because its stereo and one will have something in it most likely
udp_socket_blaster (opts, state, 320*2, stereo_sf[j]);
}
}
if (opts->audio_out_type == 1 || opts->audio_out_type == 2) //STDOUT or OSS 8k/2channel
{
for (j = 0; j < 18; j++)
{
if (memcmp(empty, stereo_sf[j], sizeof(empty)) != 0) //may not work as intended because its stereo and one will have something in it most likely
write (opts->audio_out_fd, stereo_sf[j], 320*2);
}
}
if (opts->wav_out_f != NULL && opts->static_wav_file == 1)
{
for (j = 0; j < 18; j++)
{
if (memcmp(empty, stereo_sf[j], sizeof(empty)) != 0)
sf_write_short(opts->wav_out_f, stereo_sf[j], 320);
}
}
SS18_END:
//run cleanup since we pulled stuff from processAudio
state->audio_out_idx = 0;
state->audio_out_idxR = 0;
//set float temp buffer to baseline
memset (state->s_l4, 0, sizeof(state->s_l4));
memset (state->s_r4, 0, sizeof(state->s_r4));
if (state->audio_out_idx2 >= 800000)
{
state->audio_out_float_buf_p = state->audio_out_float_buf + 100;
state->audio_out_buf_p = state->audio_out_buf + 100;
memset (state->audio_out_float_buf, 0, 100 * sizeof (float));
memset (state->audio_out_buf, 0, 100 * sizeof (short));
state->audio_out_idx2 = 0;
}
if (state->audio_out_idx2R >= 800000)
{
state->audio_out_float_buf_pR = state->audio_out_float_bufR + 100;
state->audio_out_buf_pR = state->audio_out_bufR + 100;
memset (state->audio_out_float_bufR, 0, 100 * sizeof (float));
memset (state->audio_out_bufR, 0, 100 * sizeof (short));
state->audio_out_idx2R = 0;
}
}
//largely borrowed from Boatbod OP25 (simplified single tone ID version)
void soft_tonef (float samp[160], int n, int ID, int AD)
{
int i;
float step1, step2, amplitude, freq1, freq2;
float gain = 1.0f;
//needs opts and state to work....don't feel like doing the changes
// if (opts->audio_gain != 0 && slot == 0)
// gain = state->aout_gain / 25.0f;
// Synthesize tones
freq1 = 31.25 * ID; freq2 = freq1;
step1 = 2 * M_PI * freq1 / 8000.0f;
step2 = 2 * M_PI * freq2 / 8000.0f;
amplitude = AD * 75.0f;
for (i = 0; i < 160; i++)
{
samp[i] = (float) ( amplitude * (sin((n) * step1)/2 + sin((n) * step2)/2) );
samp[i] /= 8000.0f;
samp[i] *= gain;
n++;
}
}
//older version, does better at normalizing audio, but also sounds 'flatter' and 'muddier'
//probably too much compression and adjustments on the samples (tones have a slight tremolo effect)
//Remus, enable this one and disable the one above if you prefer
void agf (dsd_opts * opts, dsd_state * state, float samp[160], int slot)
{
int i, j, run;
run = 1;
float empty[160];
memset (empty, 0.0f, sizeof(empty));
float mmax = 0.90f;
float mmin = -0.90f;
float aavg = 0.0f; //average of the absolute value
float df; //decimation value
df = 3277.0f; //test value
//trying things
float gain = 1.0f;
//test increasing gain on DMR EP samples with degraded AMBE samples
if (state->payload_algid == 0x21 || state->payload_algidR == 0x21)
gain = 1.75f;
if (opts->audio_gain != 0)
gain = opts->audio_gain / 25.0f;
//this comparison is to determine whether or not to run gain on 'empty' samples (2v last 2, silent frames, etc)
if (memcmp(empty, samp, sizeof(empty)) == 0) run = 0;
if (run == 0) goto AGF_END;
for (j = 0; j < 8; j++)
{
if (slot == 0)
df = 384.0f * (50.0f - state->aout_gain);
if (slot == 1)
df = 384.0f * (50.0f - state->aout_gainR);
for (i = 0; i < 20; i++)
{
samp[(j*20)+i] = samp[(j*20)+i] / df;
// samp[(j*20)+i] *= gain;
// aavg += fabsf(samp[i]);
//simple clipping
if (samp[(j*20)+i] > mmax)
samp[(j*20)+i] = mmax;
if (samp[(j*20)+i] < mmin)
samp[(j*20)+i] = mmin;
aavg += fabsf(samp[i]);
samp[(j*20)+i] *= gain * 0.8f;
} //i loop
aavg /= 20.0f; //average of the 20 samples
//debug
// fprintf (stderr, "\nS%d - DF = %f AAVG = %f", slot, df, aavg);
if (slot == 0)
{
if (aavg < 0.075f && state->aout_gain < 46.0f) state->aout_gain += 0.5f;
if (aavg >= 0.075f && state->aout_gain > 1.0f) state->aout_gain -= 0.5f;
}
if (slot == 1)
{
if (aavg < 0.075f && state->aout_gainR < 46.0f) state->aout_gainR += 0.5f;
if (aavg >= 0.075f && state->aout_gainR > 1.0f) state->aout_gainR -= 0.5f;
}
aavg = 0.0f; //reset
} //j loop
AGF_END: ; //do nothing
}
//automatic gain short mono for analog audio and some digital mono (WIP)
void agsm (dsd_opts * opts, dsd_state * state, short * input, int len)
{
int i;
UNUSED(opts);
//NOTE: This seems to be doing better now that I got it worked out properly
//This may produce a mild buzz sound though on the low end
float avg = 0.0f; //average of 20 samples
float coeff = 0.0f; //gain coeffiecient
float max = 0.0f; //the highest sample value
float nom = 4800.0f; //nominator value for 48k
float samp[960]; memset (samp, 0.0f, 960*sizeof(float));
//assign internal float from short input
for (i = 0; i < len; i++)
samp[i] = (float)input[i];
for (i = 0; i < len; i++)
{
if ( fabsf (samp[i]) > max)
{
max = fabsf (samp[i]);
}
}
for (i = 0; i < len; i++)
avg += (float)samp[i];
avg /= (float)len;
coeff = fabsf (nom / max);
//keep coefficient with tolerable range when silence to prevent crackle/buzz
if (coeff > 3.0f) coeff = 3.0f;
//apply the coefficient to bring the max value to our desired maximum value
for (i = 0; i < 20; i++)
samp[i] *= coeff;
//debug
// fprintf (stderr, "\n M: %f; C: %f; A: %f; ", max, coeff, avg);
// debug
// for (i = 0; i < len; i++)
// {
// fprintf (stderr, " in: %d", input[i]);
// fprintf (stderr, " out: %f", samp[i]);
// }
//return new smaple values post agc
for (i = 0; i < len; i++)
input[i] = (short)samp[i];
state->aout_gainA = coeff; //store for internal use
UNUSED(avg);
}
//until analog agc is fixed, going to use a manual gain control on this
void analog_gain (dsd_opts * opts, dsd_state * state, short * input, int len)
{
int i;
UNUSED(state);
float gain = (opts->audio_gainA / 100.0f) * 5.0f; //scale 0x - 5x
for (i = 0; i < len; i++)
input[i] *= gain;
}
void beeper (dsd_opts * opts, dsd_state * state, int lr, int id, int ad, int len)
{
UNUSED(state);
int i, j, n;
//use lr as left or right channel designation in stereo config
float samp_f[160]; //mono float sample
float samp_fs[320]; //stereo float sample
short samp_s[160]; //mono short sample
short samp_ss[320]; //stereo short sample
short samp_su[960]; //mono short upsample
short outbuf[6]; //temp storage for upsample
n = 0; //rolling sine wave 'degree'
//double len if not using Pulse Audio,
//anything over UDP or using OSS may
//not clear the buffer at the shorter len
if (opts->audio_out_type != 0)
len *= 2;
//each j increment is 20 ms at 160 samples / 8 kHz
for (j = 0; j < len; j++)
{
//'zero' out stereo mix samples
memset (samp_fs, 0, sizeof(samp_fs));
memset (samp_ss, 0, sizeof(samp_ss));
//generate a tone with supplied tone ID and AD value
soft_tonef(samp_f, n, id, ad);
//convert float to short if required
if (opts->floating_point == 0)
{
mbe_floattoshort(samp_f, samp_s);
for (i = 0; i < 160; i++)
{
samp_s[i] *= 4000; //apply gain
samp_ss[(i*2)+lr] = samp_s[i];
}
}
//load returned tone sample into appropriate channel -- left = +0; right = +1;
for (i = 0; i < 160; i++)
samp_fs[(i*2)+lr] = samp_f[i];
//play sample 3 times (20ms x 3 = 60ms)
if (opts->audio_out_type == 0) //Pulse Audio
{
if (opts->pulse_digi_out_channels == 2 && opts->floating_point == 1)
pa_simple_write(opts->pulse_digi_dev_out, samp_fs, 320*4, NULL);
if (opts->pulse_digi_out_channels == 1 && opts->floating_point == 1)
pa_simple_write(opts->pulse_digi_dev_out, samp_f, 160*4, NULL);
if (opts->pulse_digi_out_channels == 2 && opts->floating_point == 0)
pa_simple_write(opts->pulse_digi_dev_out, samp_ss, 320*2, NULL);
if (opts->pulse_digi_out_channels == 1 && opts->floating_point == 0)
pa_simple_write(opts->pulse_digi_dev_out, samp_s, 160*2, NULL);
}
else if (opts->audio_out_type == 8) //UDP Audio
{
if (opts->pulse_digi_out_channels == 2 && opts->floating_point == 1)
udp_socket_blaster (opts, state, 320*4, samp_fs);
if (opts->pulse_digi_out_channels == 1 && opts->floating_point == 1)
udp_socket_blaster (opts, state, 160*4, samp_f);
if (opts->pulse_digi_out_channels == 2 && opts->floating_point == 0)
udp_socket_blaster (opts, state, 320*2, samp_ss);
if (opts->pulse_digi_out_channels == 1 && opts->floating_point == 0)
udp_socket_blaster (opts, state, 160*2, samp_s);
}
else if (opts->audio_out_type == 1) //STDOUT
{
if (opts->pulse_digi_out_channels == 2 && opts->floating_point == 1)
write(opts->audio_out_fd, samp_fs, 320*4);
if (opts->pulse_digi_out_channels == 1 && opts->floating_point == 1)
write(opts->audio_out_fd, samp_f, 160*4);
if (opts->pulse_digi_out_channels == 2 && opts->floating_point == 0)
write(opts->audio_out_fd, samp_ss, 320*2);
if (opts->pulse_digi_out_channels == 1 && opts->floating_point == 0)
write(opts->audio_out_fd, samp_s, 160*2);
}
else if (opts->audio_out_type == 2) //OSS Variable Output (no float)
{
if (opts->pulse_digi_out_channels == 2 && opts->floating_point == 0)
write(opts->audio_out_fd, samp_ss, 320*2);
if (opts->pulse_digi_out_channels == 1 && opts->floating_point == 0)
write(opts->audio_out_fd, samp_s, 160*2);
}
else if (opts->audio_out_type == 5) //OSS 48k/1 configuration with upsample
{
short prev = 0;
for (i = 0; i < 160; i++)
{
upsampleS (samp_s[i], prev, outbuf);
samp_su[(i*6)+0] = outbuf[0];
samp_su[(i*6)+1] = outbuf[1];
samp_su[(i*6)+2] = outbuf[2];
samp_su[(i*6)+3] = outbuf[3];
samp_su[(i*6)+4] = outbuf[4];
samp_su[(i*6)+5] = outbuf[5];
}
write (opts->audio_out_fd, samp_su, 960*2);
}
}
}
Reference in New Issue View Git Blame Copy Permalink