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Patch - More TDMA (DMR/P2) Mono Stereo Tests;

This commit is contained in:
lwvmobile 2023-12-27 05:26:24 -05:00
parent 180fd1bfb0
commit 2237d16696
2 changed files with 997 additions and 0 deletions
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769
patch/p25p2_superframe_18V_tests2.patch Normal file
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@ -0,0 +1,769 @@
diff --git a/include/dsd.h b/include/dsd.h
index 0b47dee..f459528 100644
--- a/include/dsd.h
+++ b/include/dsd.h
@@ -437,8 +437,8 @@ typedef struct
//new stereo short sample storage
short s_l[160]; //single sample left
short s_r[160]; //single sample right
- short s_l4[4][160]; //quad sample for up to a P25p2 4V
- short s_r4[4][160]; //quad sample for up to a P25p2 4V
+ short s_l4[36][160]; //quad sample for up to a P25p2 4V
+ short s_r4[36][160]; //quad sample for up to a P25p2 4V
//new stereo short sample storage tapped from 48_k internal upsampling
short s_lu[160*6]; //single sample left
short s_ru[160*6]; //single sample right
@@ -654,6 +654,7 @@ typedef struct
int p2_vch_chan_num; //vch channel number (0 or 1, not the 0-11 TS)
int ess_b[2][96]; //external storage for ESS_B fragments
int fourv_counter[2]; //external reference counter for ESS_B fragment collection
+ int voice_counter[2]; //external reference counter for 18V x 2 P25p2 Superframe
int p2_is_lcch; //flag to tell us when a frame is lcch and not sacch
//iden freq storage for frequency calculations
@@ -926,6 +927,7 @@ void agf (dsd_opts * opts, dsd_state * state, float samp[160], int slot); //floa
void playSynthesizedVoiceSS (dsd_opts * opts, dsd_state * state); //short stereo mix
void playSynthesizedVoiceSS3 (dsd_opts * opts, dsd_state * state); //short stereo mix 3v2 DMR
void playSynthesizedVoiceSS4 (dsd_opts * opts, dsd_state * state); //short stereo mix 4v2 P25p2
+void playSynthesizedVoiceSS18 (dsd_opts * opts, dsd_state * state); //short stereo mix 18V Superframe
void upsampleS (short invalue, short prev, short outbuf[6]); //upsample 8k to 48k short
//
void openAudioOutDevice (dsd_opts * opts, int speed);
diff --git a/src/dsd_audio2.c b/src/dsd_audio2.c
index a836afc..4ab705f 100644
--- a/src/dsd_audio2.c
+++ b/src/dsd_audio2.c
@@ -906,8 +906,31 @@ void playSynthesizedVoiceSS3 (dsd_opts * opts, dsd_state * state)
//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;
+ // if (opts->slot1_on == 0) encL = 1;
+ // if (opts->slot2_on == 0) encR = 1;
+
+ //this may have some unintended side effects that I haven't tested/explored yet, that's why its a patch only
+ //particularly in regards to 'Aero' Builds with their OSS Jank and slot_preference = 3 by default
+ //if rounds of testing in various scenaries looks good, I may expand this to P25p2 and the Float Variants as well
+ if (opts->slot1_on == 0 && opts->slot2_on == 1) //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) //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) //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) //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) //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) //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 (opts->slot1_on == 0 && opts->slot2_on == 0) //both slots are hard off, disable playback
+ {
+ encL = 1;
+ encR = 1;
+ }
//WIP: Mute if on B list (or not W list)
char modeL[8];
@@ -944,12 +967,37 @@ void playSynthesizedVoiceSS3 (dsd_opts * opts, dsd_state * state)
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;
+ }
+
//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;
+ 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;
+ }
+ if (state->tg_hold != 0 && state->tg_hold == TGR)
+ {
+ encR = 0;
+ opts->slot2_on = 1;
+ opts->slot_preference = 1;
+ }
//interleave left and right channels from the short storage area
for (i = 0; i < 160; i++)
@@ -1092,8 +1140,31 @@ void playSynthesizedVoiceSS4 (dsd_opts * opts, dsd_state * state)
//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;
+ // if (opts->slot1_on == 0) encL = 1;
+ // if (opts->slot2_on == 0) encR = 1;
+
+ //this may have some unintended side effects that I haven't tested/explored yet, that's why its a patch only
+ //particularly in regards to 'Aero' Builds with their OSS Jank and slot_preference = 3 by default
+ //if rounds of testing in various scenaries looks good, I may expand this to P25p2 and the Float Variants as well
+ if (opts->slot1_on == 0 && opts->slot2_on == 1) //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) //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) //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) //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) //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) //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 (opts->slot1_on == 0 && opts->slot2_on == 0) //both slots are hard off, disable playback
+ {
+ encL = 1;
+ encR = 1;
+ }
//WIP: Mute if on B list (or not W list)
char modeL[8];
@@ -1130,12 +1201,37 @@ void playSynthesizedVoiceSS4 (dsd_opts * opts, dsd_state * state)
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;
+ }
+
//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;
+ 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;
+ }
+ if (state->tg_hold != 0 && state->tg_hold == TGR)
+ {
+ encR = 0;
+ opts->slot2_on = 1;
+ opts->slot_preference = 1;
+ }
//interleave left and right channels from the short storage area
for (i = 0; i < 160; i++)
@@ -1238,6 +1334,226 @@ void playSynthesizedVoiceSS4 (dsd_opts * opts, dsd_state * state)
}
+//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, 1, sizeof(stereo_sf));
+
+ short empty[320];
+ memset (empty, 1, 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)
+ {
+ if (state->payload_algid == 0xAA)
+ {
+ if (state->R != 0)
+ {
+ encL = 0;
+ }
+ }
+ }
+
+ if (encR)
+ {
+ if (state->payload_algidR == 0xAA)
+ {
+ if (state->RR != 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;
+
+ //this may have some unintended side effects that I haven't tested/explored yet, that's why its a patch only
+ //particularly in regards to 'Aero' Builds with their OSS Jank and slot_preference = 3 by default
+ //if rounds of testing in various scenaries looks good, I may expand this to P25p2 and the Float Variants as well
+ if (opts->slot1_on == 0 && opts->slot2_on == 1) //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) //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) //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) //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) //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) //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 (opts->slot1_on == 0 && opts->slot2_on == 0) //both slots are hard off, disable playback
+ {
+ encL = 1;
+ 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;
+ }
+
+ //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;
+ }
+ if (state->tg_hold != 0 && state->tg_hold == TGR)
+ {
+ encR = 0;
+ opts->slot2_on = 1;
+ opts->slot_preference = 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++)
+ {
+ if (!encL)
+ stereo_sf[j][i*2+0] = state->s_l4[j][i];
+ if (!encR)
+ 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);
+ }
+ }
+
+ 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, 1, sizeof(state->s_l4));
+ memset (state->s_r4, 1, 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)
{
diff --git a/src/dsd_main.c b/src/dsd_main.c
index 1d2616b..02590a6 100644
--- a/src/dsd_main.c
+++ b/src/dsd_main.c
@@ -382,6 +382,8 @@ if(opts->frame_m17 == 1) //&& opts->audio_in_type == 5
}
state->fourv_counter[0] = 0;
state->fourv_counter[1] = 0;
+ state->voice_counter[0] = 0;
+ state->voice_counter[1] = 0;
//values displayed in ncurses terminal
// state->p25_vc_freq[0] = 0;
@@ -745,7 +747,7 @@ initOpts (dsd_opts * opts)
//slot preference is used during OSS audio playback to
//prefer one tdma voice slot over another when both are playing back
//this is a fix to OSS 48k/1 output
- opts->slot_preference = 0; //default prefer slot 1 -- state->currentslot = 0;
+ opts->slot_preference = 2; //default prefer slot 1 -- state->currentslot = 0;
//hardset slots to synthesize
opts->slot1_on = 1;
@@ -941,6 +943,8 @@ initState (dsd_state * state)
}
state->fourv_counter[0] = 0;
state->fourv_counter[1] = 0;
+ state->voice_counter[0] = 0;
+ state->voice_counter[1] = 0;
state->K = 0;
state->R = 0;
diff --git a/src/dsd_ncurses.c b/src/dsd_ncurses.c
index 4646e77..fc3f28b 100644
--- a/src/dsd_ncurses.c
+++ b/src/dsd_ncurses.c
@@ -2568,11 +2568,11 @@ ncursesPrinter (dsd_opts * opts, dsd_state * state)
{
printw ("| Voice Error: [%i][%i] Slot 1 (1)", state->errs, state->errs2);
if (opts->slot1_on == 0) printw (" OFF");
- if (opts->slot1_on == 1) printw (" ON");
+ if (opts->slot1_on == 1) printw (" ON"); if (opts->slot_preference == 0) printw (" *Preferred");
printw ("\n");
printw ("| Voice Error: [%i][%i] Slot 2 (2)", state->errsR, state->errs2R);
if (opts->slot2_on == 0) printw (" OFF");
- if (opts->slot2_on == 1) printw (" ON");
+ if (opts->slot2_on == 1) printw (" ON"); if (opts->slot_preference == 1) printw (" *Preferred");
printw ("\n");
}
printw ("------------------------------------------------------------------------------\n");
@@ -3654,8 +3654,8 @@ ncursesPrinter (dsd_opts * opts, dsd_state * state)
//switching, but want to control each seperately plz
if (opts->slot1_on == 1)
{
- opts->slot1_on = 0;
- opts->slot_preference = 1; //slot 2
+ opts->slot1_on = 0; if (opts->slot_preference == 0) opts->slot_preference = 2;
+ // opts->slot_preference = 1; //slot 2
//clear any previously buffered audio
state->audio_out_float_buf_p = state->audio_out_float_buf + 100;
state->audio_out_buf_p = state->audio_out_buf + 100;
@@ -3680,8 +3680,8 @@ ncursesPrinter (dsd_opts * opts, dsd_state * state)
//switching, but want to control each seperately plz
if (opts->slot2_on == 1)
{
- opts->slot2_on = 0;
- opts->slot_preference = 0; //slot 1
+ opts->slot2_on = 0; if (opts->slot_preference == 1) opts->slot_preference = 2;
+ // opts->slot_preference = 0; //slot 1
//clear any previously buffered audio
state->audio_out_float_buf_pR = state->audio_out_float_bufR + 100;
state->audio_out_buf_pR = state->audio_out_bufR + 100;
@@ -3701,6 +3701,13 @@ ncursesPrinter (dsd_opts * opts, dsd_state * state)
}
}
+ if (c == 51) //'3' key, cycle slot preferences
+ {
+ if (opts->slot_preference < 2)
+ opts->slot_preference++;
+ else opts->slot_preference = 0;
+ }
+
if (c == 43) //+ key, increment audio_gain
{
diff --git a/src/p25p2_frame.c b/src/p25p2_frame.c
index c391eba..99a4840 100644
--- a/src/p25p2_frame.c
+++ b/src/p25p2_frame.c
@@ -490,18 +490,27 @@ void process_4V (dsd_opts * opts, dsd_state * state)
// else state->dmrburstR = 21;
// }
// #endif
+
+ //unsure of the best location for these counter resets
+ if (state->voice_counter[0] >= 18)
+ state->voice_counter[0] = 0;
+
+ if (state->voice_counter[1] >= 18)
+ state->voice_counter[1] = 0;
processMbeFrame (opts, state, NULL, ambe_fr1, NULL);
if(state->currentslot == 0)
{
memcpy(state->f_l4[0], state->audio_out_temp_buf, sizeof(state->audio_out_temp_buf));
- memcpy(state->s_l4[0], state->s_l, sizeof(state->s_l));
+ // memcpy(state->s_l4[0], state->s_l, sizeof(state->s_l));
+ memcpy(state->s_l4[(state->voice_counter[0]++)%18], state->s_l, sizeof(state->s_l));
memcpy(state->s_l4u[0], state->s_lu, sizeof(state->s_lu));
}
else
{
memcpy(state->f_r4[0], state->audio_out_temp_bufR, sizeof(state->audio_out_temp_bufR));
- memcpy(state->s_r4[0], state->s_r, sizeof(state->s_r));
+ // memcpy(state->s_r4[0], state->s_r, sizeof(state->s_r));
+ memcpy(state->s_r4[(state->voice_counter[1]++)%18], state->s_r, sizeof(state->s_r));
memcpy(state->s_r4u[0], state->s_ru, sizeof(state->s_ru));
}
@@ -509,13 +518,15 @@ void process_4V (dsd_opts * opts, dsd_state * state)
if(state->currentslot == 0)
{
memcpy(state->f_l4[1], state->audio_out_temp_buf, sizeof(state->audio_out_temp_buf));
- memcpy(state->s_l4[1], state->s_l, sizeof(state->s_l));
+ // memcpy(state->s_l4[1], state->s_l, sizeof(state->s_l));
+ memcpy(state->s_l4[(state->voice_counter[0]++)%18], state->s_l, sizeof(state->s_l));
memcpy(state->s_l4u[1], state->s_lu, sizeof(state->s_lu));
}
else
{
memcpy(state->f_r4[1], state->audio_out_temp_bufR, sizeof(state->audio_out_temp_bufR));
- memcpy(state->s_r4[1], state->s_r, sizeof(state->s_r));
+ // memcpy(state->s_r4[1], state->s_r, sizeof(state->s_r));
+ memcpy(state->s_r4[(state->voice_counter[1]++)%18], state->s_r, sizeof(state->s_r));
memcpy(state->s_r4u[1], state->s_ru, sizeof(state->s_ru));
}
@@ -523,13 +534,15 @@ void process_4V (dsd_opts * opts, dsd_state * state)
if(state->currentslot == 0)
{
memcpy(state->f_l4[2], state->audio_out_temp_buf, sizeof(state->audio_out_temp_buf));
- memcpy(state->s_l4[2], state->s_l, sizeof(state->s_l));
+ // memcpy(state->s_l4[2], state->s_l, sizeof(state->s_l));
+ memcpy(state->s_l4[(state->voice_counter[0]++)%18], state->s_l, sizeof(state->s_l));
memcpy(state->s_l4u[2], state->s_lu, sizeof(state->s_lu));
}
else
{
memcpy(state->f_r4[2], state->audio_out_temp_bufR, sizeof(state->audio_out_temp_bufR));
- memcpy(state->s_r4[2], state->s_r, sizeof(state->s_r));
+ // memcpy(state->s_r4[2], state->s_r, sizeof(state->s_r));
+ memcpy(state->s_r4[(state->voice_counter[1]++)%18], state->s_r, sizeof(state->s_r));
memcpy(state->s_r4u[2], state->s_ru, sizeof(state->s_ru));
}
@@ -537,13 +550,15 @@ void process_4V (dsd_opts * opts, dsd_state * state)
if(state->currentslot == 0)
{
memcpy(state->f_l4[3], state->audio_out_temp_buf, sizeof(state->audio_out_temp_buf));
- memcpy(state->s_l4[3], state->s_l, sizeof(state->s_l));
+ // memcpy(state->s_l4[3], state->s_l, sizeof(state->s_l));
+ memcpy(state->s_l4[(state->voice_counter[0]++)%18], state->s_l, sizeof(state->s_l));
memcpy(state->s_l4u[3], state->s_lu, sizeof(state->s_lu));
}
else
{
memcpy(state->f_r4[3], state->audio_out_temp_bufR, sizeof(state->audio_out_temp_bufR));
- memcpy(state->s_r4[3], state->s_r, sizeof(state->s_r));
+ // memcpy(state->s_r4[3], state->s_r, sizeof(state->s_r));
+ memcpy(state->s_r4[(state->voice_counter[1]++)%18], state->s_r, sizeof(state->s_r));
memcpy(state->s_r4u[3], state->s_ru, sizeof(state->s_ru));
}
@@ -709,17 +724,26 @@ void process_2V (dsd_opts * opts, dsd_state * state)
// }
// #endif
+ //unsure of the best location for these counter resets
+ if (state->voice_counter[0] >= 18)
+ state->voice_counter[0] = 0;
+
+ if (state->voice_counter[1] >= 18)
+ state->voice_counter[1] = 0;
+
processMbeFrame (opts, state, NULL, ambe_fr1, NULL);
if(state->currentslot == 0)
{
memcpy(state->f_l4[0], state->audio_out_temp_buf, sizeof(state->audio_out_temp_buf));
- memcpy(state->s_l4[0], state->s_l, sizeof(state->s_l));
+ // memcpy(state->s_l4[0], state->s_l, sizeof(state->s_l));
+ memcpy(state->s_l4[(state->voice_counter[0]++)%18], state->s_l, sizeof(state->s_l));
memcpy(state->s_l4u[0], state->s_lu, sizeof(state->s_lu));
}
else
{
memcpy(state->f_r4[0], state->audio_out_temp_bufR, sizeof(state->audio_out_temp_bufR));
- memcpy(state->s_r4[0], state->s_r, sizeof(state->s_r));
+ // memcpy(state->s_r4[0], state->s_r, sizeof(state->s_r));
+ memcpy(state->s_r4[(state->voice_counter[1]++)%18], state->s_r, sizeof(state->s_r));
memcpy(state->s_r4u[0], state->s_ru, sizeof(state->s_ru));
}
@@ -727,17 +751,19 @@ void process_2V (dsd_opts * opts, dsd_state * state)
if(state->currentslot == 0)
{
memcpy(state->f_l4[1], state->audio_out_temp_buf, sizeof(state->audio_out_temp_buf));
- memcpy(state->s_l4[1], state->s_l, sizeof(state->s_l));
+ // memcpy(state->s_l4[1], state->s_l, sizeof(state->s_l));
+ memcpy(state->s_l4[(state->voice_counter[0]++)%18], state->s_l, sizeof(state->s_l));
memcpy(state->s_l4u[1], state->s_lu, sizeof(state->s_lu));
}
else
{
memcpy(state->f_r4[1], state->audio_out_temp_bufR, sizeof(state->audio_out_temp_bufR));
- memcpy(state->s_r4[1], state->s_r, sizeof(state->s_r));
+ // memcpy(state->s_r4[1], state->s_r, sizeof(state->s_r));
+ memcpy(state->s_r4[(state->voice_counter[1]++)%18], state->s_r, sizeof(state->s_r));
memcpy(state->s_r4u[1], state->s_ru, sizeof(state->s_ru));
}
-
+ // if (state->currentslot == 0) state->voice_counter[0] = 0; if (state->currentslot == 1) state->voice_counter[1] = 0;
process_ESS(opts, state);
//reset drop bytes after a 2V
@@ -930,6 +956,8 @@ void process_P2_DUID (dsd_opts * opts, dsd_state * state)
state->p2_is_lcch = 0;
state->fourv_counter[0] = 0;
state->fourv_counter[1] = 0;
+ state->voice_counter[0] = 0;
+ state->voice_counter[1] = 0;
goto END;
}
@@ -949,8 +977,32 @@ void process_P2_DUID (dsd_opts * opts, dsd_state * state)
if (sacch == 0 && ts_counter & 1 && opts->floating_point == 1 && opts->pulse_digi_rate_out == 8000)
playSynthesizedVoiceFS4 (opts, state);
- if (sacch == 0 && ts_counter & 1 && opts->floating_point == 0 && opts->pulse_digi_rate_out == 8000)
- playSynthesizedVoiceSS4 (opts, state);
+ // if (sacch == 0 && ts_counter & 1 && opts->floating_point == 0 && opts->pulse_digi_rate_out == 8000)
+ // playSynthesizedVoiceSS4 (opts, state);
+
+ // fprintf (stderr, " VCH0: %d;", state->voice_counter[0]); //debug
+ // fprintf (stderr, " VCH1: %d;", state->voice_counter[1]); //debug
+
+ //this works, but may still have an element of 'dual voice stutter' which was my initial complaint, but shouldn't 'lag' during trunking operations (hopefully)
+ if ( (state->voice_counter[0] >= 18 || state->voice_counter[1] >= 18 ) && opts->floating_point == 0 && opts->pulse_digi_rate_out == 8000) //&& ts_counter & 1
+ {
+ playSynthesizedVoiceSS18 (opts, state);
+ state->voice_counter[0] = 0; //reset
+ state->voice_counter[1] = 0; //reset
+ }
+
+ //these two will work, but NOT at the same time on dual voice
+ // if (state->voice_counter[0] >= 18 && opts->floating_point == 0 && opts->pulse_digi_rate_out == 8000) //&& ts_counter & 1
+ // {
+ // playSynthesizedVoiceSS18 (opts, state);
+ // state->voice_counter[0] = 0; //reset
+ // }
+
+ // if (state->voice_counter[1] >= 18 && opts->floating_point == 0 && opts->pulse_digi_rate_out == 8000) //&& ts_counter & 1
+ // {
+ // playSynthesizedVoiceSS18 (opts, state);
+ // state->voice_counter[1] = 0; //reset
+ // }
//debug: fix burst indicator for ncurses if marginal signal
// if (voice)
diff --git a/src/p25p2_xcch.c b/src/p25p2_xcch.c
index 101d1e4..847fe71 100644
--- a/src/p25p2_xcch.c
+++ b/src/p25p2_xcch.c
@@ -122,6 +122,7 @@ void process_SACCH_MAC_PDU (dsd_opts * opts, dsd_state * state, int payload[180]
{
//reset fourv_counter and dropbyte on PTT
state->fourv_counter[0] = 0;
+ state->voice_counter[0] = 0;
state->dropL = 256;
state->dmrburstL = 20;
@@ -171,6 +172,7 @@ void process_SACCH_MAC_PDU (dsd_opts * opts, dsd_state * state, int payload[180]
{
//reset fourv_counter and dropbyte on PTT
state->fourv_counter[1] = 0;
+ state->voice_counter[1] = 0;
state->dropR = 256;
state->payload_algidR = 0; //zero this out as well
@@ -230,6 +232,7 @@ void process_SACCH_MAC_PDU (dsd_opts * opts, dsd_state * state, int payload[180]
{
state->fourv_counter[0] = 0;
+ state->voice_counter[0] = 0;
state->dropL = 256;
state->dmrburstL = 23;
state->payload_algid = 0;
@@ -258,6 +261,7 @@ void process_SACCH_MAC_PDU (dsd_opts * opts, dsd_state * state, int payload[180]
{
state->fourv_counter[1] = 0;
+ state->voice_counter[1] = 0;
state->dropR = 256;
state->dmrburstR = 23;
state->payload_algidR = 0;
@@ -498,6 +502,7 @@ void process_FACCH_MAC_PDU (dsd_opts * opts, dsd_state * state, int payload[156]
{
//reset fourv_counter and dropbyte on PTT
state->fourv_counter[0] = 0;
+ state->voice_counter[0] = 0;
state->dropL = 256;
state->dmrburstL = 20;
@@ -538,6 +543,7 @@ void process_FACCH_MAC_PDU (dsd_opts * opts, dsd_state * state, int payload[156]
{
//reset fourv_counter and dropbyte on PTT
state->fourv_counter[1] = 0;
+ state->voice_counter[1] = 0;
state->dropR = 256;
state->dmrburstR = 20;
@@ -594,6 +600,7 @@ void process_FACCH_MAC_PDU (dsd_opts * opts, dsd_state * state, int payload[156]
{
state->fourv_counter[0] = 0;
+ state->voice_counter[0] = 0;
state->dropL = 256;
state->dmrburstL = 23;
state->payload_algid = 0; //zero this out as well
@@ -622,6 +629,7 @@ void process_FACCH_MAC_PDU (dsd_opts * opts, dsd_state * state, int payload[156]
{
state->fourv_counter[1] = 0;
+ state->voice_counter[1] = 0;
state->dropR = 256;
state->dmrburstR = 23;
state->payload_algidR = 0; //zero this out as well
@@ -723,6 +731,7 @@ void process_FACCH_MAC_PDU (dsd_opts * opts, dsd_state * state, int payload[156]
state->payload_keyid = 0;
state->dmrburstL = 24;
state->fourv_counter[0] = 0;
+ state->voice_counter[0] = 0;
state->lastsrc = 0;
state->lasttg = 0;
@@ -733,6 +742,7 @@ void process_FACCH_MAC_PDU (dsd_opts * opts, dsd_state * state, int payload[156]
state->payload_keyidR = 0;
state->dmrburstR = 24;
state->fourv_counter[1] = 0;
+ state->voice_counter[1] = 0;
state->lastsrcR = 0;
state->lasttgR = 0;

228
patch/wolf_p25p2_and_dmr__mono_stereo_interleaving_tests2.patch Normal file
View File

@ -0,0 +1,228 @@
diff --git a/src/dsd_audio2.c b/src/dsd_audio2.c
index a836afc..91e5869 100644
--- a/src/dsd_audio2.c
+++ b/src/dsd_audio2.c
@@ -906,8 +906,31 @@ void playSynthesizedVoiceSS3 (dsd_opts * opts, dsd_state * state)
//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;
+ // if (opts->slot1_on == 0) encL = 1;
+ // if (opts->slot2_on == 0) encR = 1;
+
+ //this may have some unintended side effects that I haven't tested/explored yet, that's why its a patch only
+ //particularly in regards to 'Aero' Builds with their OSS Jank and slot_preference = 3 by default
+ //if rounds of testing in various scenaries looks good, I may expand this to P25p2 and the Float Variants as well
+ if (opts->slot1_on == 0 && opts->slot2_on == 1) //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) //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) //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) //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) //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) //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 (opts->slot1_on == 0 && opts->slot2_on == 0) //both slots are hard off, disable playback
+ {
+ encL = 1;
+ encR = 1;
+ }
//WIP: Mute if on B list (or not W list)
char modeL[8];
@@ -944,12 +967,37 @@ void playSynthesizedVoiceSS3 (dsd_opts * opts, dsd_state * state)
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;
+ }
+
//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;
+ 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;
+ }
+ if (state->tg_hold != 0 && state->tg_hold == TGR)
+ {
+ encR = 0;
+ opts->slot2_on = 1;
+ opts->slot_preference = 1;
+ }
//interleave left and right channels from the short storage area
for (i = 0; i < 160; i++)
@@ -1092,8 +1140,31 @@ void playSynthesizedVoiceSS4 (dsd_opts * opts, dsd_state * state)
//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;
+ // if (opts->slot1_on == 0) encL = 1;
+ // if (opts->slot2_on == 0) encR = 1;
+
+ //this may have some unintended side effects that I haven't tested/explored yet, that's why its a patch only
+ //particularly in regards to 'Aero' Builds with their OSS Jank and slot_preference = 3 by default
+ //if rounds of testing in various scenaries looks good, I may expand this to P25p2 and the Float Variants as well
+ if (opts->slot1_on == 0 && opts->slot2_on == 1) //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) //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) //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) //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) //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) //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 (opts->slot1_on == 0 && opts->slot2_on == 0) //both slots are hard off, disable playback
+ {
+ encL = 1;
+ encR = 1;
+ }
//WIP: Mute if on B list (or not W list)
char modeL[8];
@@ -1126,16 +1197,37 @@ void playSynthesizedVoiceSS4 (dsd_opts * opts, dsd_state * state)
}
}
- //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;
+ }
//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;
+ 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;
+ }
+ if (state->tg_hold != 0 && state->tg_hold == TGR)
+ {
+ encR = 0;
+ opts->slot2_on = 1;
+ opts->slot_preference = 1;
+ }
//interleave left and right channels from the short storage area
for (i = 0; i < 160; i++)
diff --git a/src/dsd_main.c b/src/dsd_main.c
index 1d2616b..924bf00 100644
--- a/src/dsd_main.c
+++ b/src/dsd_main.c
@@ -745,7 +745,7 @@ initOpts (dsd_opts * opts)
//slot preference is used during OSS audio playback to
//prefer one tdma voice slot over another when both are playing back
//this is a fix to OSS 48k/1 output
- opts->slot_preference = 0; //default prefer slot 1 -- state->currentslot = 0;
+ opts->slot_preference = 2; //default prefer slot 1 -- state->currentslot = 0;
//hardset slots to synthesize
opts->slot1_on = 1;
diff --git a/src/dsd_ncurses.c b/src/dsd_ncurses.c
index 4646e77..fc3f28b 100644
--- a/src/dsd_ncurses.c
+++ b/src/dsd_ncurses.c
@@ -2568,11 +2568,11 @@ ncursesPrinter (dsd_opts * opts, dsd_state * state)
{
printw ("| Voice Error: [%i][%i] Slot 1 (1)", state->errs, state->errs2);
if (opts->slot1_on == 0) printw (" OFF");
- if (opts->slot1_on == 1) printw (" ON");
+ if (opts->slot1_on == 1) printw (" ON"); if (opts->slot_preference == 0) printw (" *Preferred");
printw ("\n");
printw ("| Voice Error: [%i][%i] Slot 2 (2)", state->errsR, state->errs2R);
if (opts->slot2_on == 0) printw (" OFF");
- if (opts->slot2_on == 1) printw (" ON");
+ if (opts->slot2_on == 1) printw (" ON"); if (opts->slot_preference == 1) printw (" *Preferred");
printw ("\n");
}
printw ("------------------------------------------------------------------------------\n");
@@ -3654,8 +3654,8 @@ ncursesPrinter (dsd_opts * opts, dsd_state * state)
//switching, but want to control each seperately plz
if (opts->slot1_on == 1)
{
- opts->slot1_on = 0;
- opts->slot_preference = 1; //slot 2
+ opts->slot1_on = 0; if (opts->slot_preference == 0) opts->slot_preference = 2;
+ // opts->slot_preference = 1; //slot 2
//clear any previously buffered audio
state->audio_out_float_buf_p = state->audio_out_float_buf + 100;
state->audio_out_buf_p = state->audio_out_buf + 100;
@@ -3680,8 +3680,8 @@ ncursesPrinter (dsd_opts * opts, dsd_state * state)
//switching, but want to control each seperately plz
if (opts->slot2_on == 1)
{
- opts->slot2_on = 0;
- opts->slot_preference = 0; //slot 1
+ opts->slot2_on = 0; if (opts->slot_preference == 1) opts->slot_preference = 2;
+ // opts->slot_preference = 0; //slot 1
//clear any previously buffered audio
state->audio_out_float_buf_pR = state->audio_out_float_bufR + 100;
state->audio_out_buf_pR = state->audio_out_bufR + 100;
@@ -3701,6 +3701,13 @@ ncursesPrinter (dsd_opts * opts, dsd_state * state)
}
}
+ if (c == 51) //'3' key, cycle slot preferences
+ {
+ if (opts->slot_preference < 2)
+ opts->slot_preference++;
+ else opts->slot_preference = 0;
+ }
+
if (c == 43) //+ key, increment audio_gain
{