update

hsmodem/frame_packer.cpp

@@ -89,18 +89,20 @@ void init_packer()
 // the payload has a size of PAYLOADLEN
 // type ... inserted in the "frame type information" field
 // status ... specifies first/last frame of a data stream
-uint8_t *Pack(uint8_t *payload, int type, int status, int *plen) 
+// repeat ... 0=normal frame, 1=repeated frame (do not increment frame counter)
+uint8_t *Pack(uint8_t *payload, int type, int status, int *plen, int repeat) 
 {
     FRAME frame;    // raw frame without fec 
     
     // polulate the raw frame
     
     // make the frame counter
-    if(status == 0)
+    if(repeat == 0 || type == 1) // 1=BER test
-        framecounter = 0;   // first block of a stream
-    else
         framecounter++;
 
+    if (status == 0)
+        framecounter = 0;   // start of file
+
     // insert frame counter and status bits
     frame.counter_LSB = framecounter & 0xff;
     int framecnt_MSB = (framecounter >> 8) & 0x03;  // Bit 8+9 of framecounter
@@ -108,6 +110,8 @@ uint8_t *Pack(uint8_t *payload, int type, int status, int *plen)
     frame.status += ((status & 0x03)<<4);
     frame.status += (type & 0x0f);
 
+    //printf("type:%d stat:%d frmnum:%d fifo:%d\n", type, status, framecounter, io_pb_fifo_freespace(0));
+    
     // insert the payload
     memcpy(frame.payload, payload, PAYLOADLEN);
     
@@ -344,8 +348,8 @@ uint8_t *getPayload(uint8_t *rxb)
     payload[4] = rx_status;                 // frame lost information
     payload[5] = speed >> 8;                // measured line speed
     payload[6] = speed;
-    payload[7] = maxLevel;                  // actual max level on sound capture in %
+    payload[7] = 0;                         // free for later use
-    payload[8] = 0;                         // free for later use
+    payload[8] = 0;                         
     payload[9] = 0;
     
     //printf("Frame no.: %d, type:%d, minfo:%d\n",framenumrx,payload[0],payload[3]);

hsmodem/hsmodem.cpp

@@ -36,7 +36,6 @@
 
 #include "hsmodem.h"
 
-void toGR_sendData(uint8_t* data, int type, int status);
 void bc_rxdata(uint8_t* pdata, int len, struct sockaddr_in* rxsock);
 void appdata_rxdata(uint8_t* pdata, int len, struct sockaddr_in* rxsock);
 void startModem();
@@ -90,6 +89,8 @@ int codec = 1;  // 0=opus, 1=codec2
 int init_audio_result = 0;
 int init_voice_result = 0;
 
+int safemode = 0;
+
 int main(int argc, char* argv[])
 {
     int opt = 0;
@@ -300,7 +301,8 @@ void bc_rxdata(uint8_t* pdata, int len, struct sockaddr_in* rxsock)
         * 3 ... announcement on / off, duration
         * 4 ... DV loudspeaker volume
         * 5 ... DV mic volume
-        * 6..9 ... unused
+        * 6 ... safe mode number
+        * 7..9 ... unused
         * 10 .. 109 ... PB device name
         * 110 .. 209 ... CAP device name
         */
@@ -308,6 +310,8 @@ void bc_rxdata(uint8_t* pdata, int len, struct sockaddr_in* rxsock)
         //printf("%d %d %d %d %d %d %d \n",pdata[1], pdata[2], pdata[3], pdata[4], pdata[5], pdata[6], pdata[7]);
         io_setAudioDevices(pdata[1], pdata[2], pdata[3], pdata[4], pdata[5], (char *)(pdata + 10), (char *)(pdata + 110));
 
+        safemode = pdata[6];
+
         char rxip[20];
         strcpy(rxip, inet_ntoa(rxsock->sin_addr));
 
@@ -474,13 +478,14 @@ void appdata_rxdata(uint8_t* pdata, int len, struct sockaddr_in* rxsock)
         closeAllandTerminate();
     }
 
+    // here we are with payload data to be sent via the modulator
+
     if (len != (PAYLOADLEN + 2))
     {
         printf("data from app: wrong length:%d (should be %d)\n", len - 2, PAYLOADLEN);
         return;
     }
 
-
     //if (getSending() == 1) return;   // already sending (Array sending)
 
     if (minfo == 0 || minfo == 3)
@@ -493,9 +498,10 @@ void appdata_rxdata(uint8_t* pdata, int len, struct sockaddr_in* rxsock)
         // and bits: symbols * bitsPerSymbol
         // and bytes/second: bits/8 = (caprate/txinterpolfactor) * bitsPerSymbol / 8
         // one frame has 258 bytes, so we need for 6s: 6* ((caprate/txinterpolfactor) * bitsPerSymbol / 8) /258 + 1 frames
+        toGR_sendData(pdata + 2, type, minfo,0);
         int numframespreamble = 6 * ((caprate / txinterpolfactor) * bitsPerSymbol / 8) / 258 + 1;
         for (int i = 0; i < numframespreamble; i++)
-            toGR_sendData(pdata + 2, type, minfo);
+            toGR_sendData(pdata + 2, type, minfo,1);
     }
     else if ((len - 2) < PAYLOADLEN)
     {
@@ -503,18 +509,41 @@ void appdata_rxdata(uint8_t* pdata, int len, struct sockaddr_in* rxsock)
         uint8_t payload[PAYLOADLEN];
         memset(payload, 0, PAYLOADLEN);
         memcpy(payload, pdata + 2, len - 2);
-        toGR_sendData(payload, type, minfo);
+        toGR_sendData(payload, type, minfo,0);
+        if (safemode > 0)
+        {
+            for (int sm = 0; sm < safemode; sm++)
+                toGR_sendData(payload, type, minfo, 1);
+        }
+        if (minfo == 2)
+        {
+            // repeat last frame
+            for (int rl = 0; rl < (10 - safemode); rl++)
+                toGR_sendData(payload, type, minfo, 1);
+        }
     }
     else
     {
-        toGR_sendData(pdata + 2, type, minfo);
+        toGR_sendData(pdata + 2, type, minfo,0);
+
+        if (safemode > 0)
+        {
+            for(int sm=0; sm < safemode; sm++)
+                toGR_sendData(pdata + 2, type, minfo, 1);
+        }
+        if (minfo == 2)
+        {
+            // repeat last frame
+            for(int rl = 0; rl < (10-safemode); rl ++)
+                toGR_sendData(pdata + 2, type, minfo, 1);
+        }
     }
 }
 
-void toGR_sendData(uint8_t* data, int type, int status)
+void toGR_sendData(uint8_t* data, int type, int status, int repeat)
 {
     int len = 0;
-    uint8_t* txdata = Pack(data, type, status, &len);
+    uint8_t* txdata = Pack(data, type, status, &len, repeat);
 
     //showbytestring((char *)"BERtx: ", txdata, len);
 

hsmodem/hsmodem.h

@@ -88,7 +88,7 @@ enum _VOICEMODES_ {
 };
 
 void init_packer();
-uint8_t* Pack(uint8_t* payload, int type, int status, int* plen);
+uint8_t* Pack(uint8_t* payload, int type, int status, int* plen, int repeat);
 uint8_t* unpack_data(uint8_t* rxd, int len);
 
 void convertBytesToSyms_QPSK(uint8_t* bytes, uint8_t* syms, int bytenum);
@@ -142,7 +142,7 @@ void sendAnnouncement();
 void sleep_ms(int ms);
 int getus();
 void GRdata_rxdata(uint8_t* pdata, int len, struct sockaddr_in* rxsock);
-void toGR_sendData(uint8_t* data, int type, int status);
+void toGR_sendData(uint8_t* data, int type, int status, int repeat);
 
 void modulator(uint8_t sym_in);
 int io_pb_fifo_usedBlocks();
@@ -213,6 +213,7 @@ extern int ann_running;
 extern int transmissions;
 extern int linespeed;
 extern uint8_t maxLevel;
+extern uint8_t maxTXLevel;
 extern int VoiceAudioMode;
 extern int opusbitrate;
 extern int init_audio_result;
@@ -227,6 +228,7 @@ extern float softwareMICvolume;
 extern float softwareLSvolume;
 extern int physcaprate;
 extern int restart_modems;
+extern int safemode;
 
 #ifdef _LINUX_
 int isRunning(char* prgname);

hsmodem/liquid_if.cpp

@@ -199,7 +199,7 @@ void modulator(uint8_t sym_in)
         {
             fs = io_pb_fifo_freespace(0);
             // wait until there is space in fifo
-            if(fs) break;
+            if(fs > 20000) break;
             sleep_ms(10);
         }
         
@@ -229,7 +229,8 @@ unsigned int m_st           = 7;       // filter delay (symbols)
 float        beta_st        = beta_excessBW;//0.30f;   // filter excess bandwidth factor
 float        bandwidth_st   = 0.9f;  // loop filter bandwidth
 
-uint8_t maxLevel = 0; // maximum level over the last x samples in %
+uint8_t maxLevel = 0;   // maximum RXlevel over the last x samples in %
+uint8_t maxTXLevel = 0; // maximum TXlevel over the last x samples in %
 
 void init_demodulator()
 {
@@ -282,7 +283,7 @@ void make_FFTdata(float f)
         uint8_t txpl[10000];
         if (fftlen > (10000 * 2 + 1))
         {
-            printf("GRdata_FFTdata: txpl too small !!!\n");
+            printf("FFTdata: txpl too small !!!\n");
             return;
         }
 
@@ -300,6 +301,9 @@ void make_FFTdata(float f)
         txpl[bidx++] = rxlevel_deteced; // RX level present
         txpl[bidx++] = rx_in_sync;
 
+        txpl[bidx++] = maxLevel;                  // actual max level on sound capture in %
+        txpl[bidx++] = maxTXLevel;           // actual max level on sound playback in %
+
         for (int i = 0; i < fftlen; i++)
         {
             txpl[bidx++] = fft[i] >> 8;
@@ -309,7 +313,7 @@ void make_FFTdata(float f)
     }
 }
 
-#define MCHECK 1000
+#define MCHECK 48000
 void getMax(float fv)
 {
     static float farr[MCHECK];
@@ -334,7 +338,7 @@ void getMax(float fv)
             if (farr[i] > max) max = farr[i];
         }
         maxLevel = (uint8_t)(max*100);
-        //printf("max: %10.6f\n", max);
+        //printf("RX max: %10.6f\n", max);
     }
 }
 
@@ -414,7 +418,7 @@ static int ccol_idx = 0;
             unsigned int sym_out;   // output symbol
             sym_out = nsym_out;
 
-            //measure_speed_syms(1);
+            measure_speed_syms(1); // do NOT remove, used for speed display in GUI
 
             // try to extract a complete frame
             uint8_t symb = sym_out;

hsmodem/soundio.cpp

@@ -276,7 +276,7 @@ void read_callback(struct SoundIoInStream* instream, int frame_count_min, int fr
             }
         }
         //printf("%d into fifo\n", frame_count);
-        // needs to sleep or it will not work correctly, no idea why
+        // needs to sleep or it will not work correctly on Windows, no idea why
         sleep_ms(1);
 
         //measure_speed_bps(frame_count);
@@ -300,6 +300,35 @@ void overflow_callback(struct SoundIoInStream* instream)
     printf("overflow %d\n", ++count);
 }
 
+#define MTXCHECK 48000
+void getTXMax(float fv)
+{
+    static float farr[MTXCHECK];
+    static int idx = 0;
+    static int f = 1;
+
+    if (f)
+    {
+        f = 0;
+        for (int i = 0; i < MTXCHECK; i++)
+            farr[i] = 1;
+    }
+
+    farr[idx] = fv;
+    idx++;
+    if (idx == MTXCHECK)
+    {
+        idx = 0;
+        float max = 0;
+        for (int i = 0; i < MTXCHECK; i++)
+        {
+            if (farr[i] > max) max = farr[i];
+        }
+        maxTXLevel = (uint8_t)(max * 100);
+        //printf("TX max: %10.6f\n", max);
+    }
+}
+
 // #define SINEWAVETEST
 
 #ifdef SINEWAVETEST
@@ -354,6 +383,7 @@ static void write_callback(struct SoundIoOutStream* outstream, int frame_count_m
             for (int channel = 0; channel < layout->channel_count; channel += 1) 
             {
                 float ftx = f[frame] * softwarePBvolume;
+                getTXMax(ftx);
                 if (pbrawdev == false)
                 {
 #ifdef SINEWAVETEST

hsmodem/speed.cpp

@@ -132,8 +132,8 @@ void measure_speed_syms(int len)
     speed = meanval((int)dspd) * bitsPerSymbol;
     
     // here we have number of elements after 1s
-    printf("%d sym/s\n",speed);
+    //printf("%d sym/s\n",speed);
-    
+    // do NOT uncomment this function for RX, it is used to measure the speed for the GUI    
     elems=0;
     lasttim = tim;
 }
@@ -160,7 +160,7 @@ void measure_speed_bps(int len)
     speed = meanvalbps((int)dspd);
 
     // here we have number of elements after 1s
-    printf(" ======================= %d bit/s\n", speed);
+    //printf(" ======================= %d bit/s\n", speed);
 
     elems = 0;
     lasttim = tim;

hsmodem/voiceprocessor.cpp

@@ -165,7 +165,7 @@ void sendCodecToModulator(uint8_t *pdata, int len)
         if (vdidx == PAYLOADLEN)
         {
             vdidx = 0;
-            toGR_sendData(payload, 6, 1);   // 6 ... voice data, 1 ... valid voice data
+            toGR_sendData(payload, 6, 1 ,0);   // 6 ... voice data, 1 ... valid voice data
         }
 
         while (1)
@@ -179,7 +179,7 @@ void sendCodecToModulator(uint8_t *pdata, int len)
                 // send a dummy frame, a frame with 0 voice data
                 uint8_t dummy[PAYLOADLEN];
                 memset(dummy, 0, PAYLOADLEN);
-                toGR_sendData(dummy, 6, 0);
+                toGR_sendData(dummy, 6, 0, 0);
             }
             else
                 break;

oscardata/oscardata/App.config

@@ -2,5 +2,5 @@
 <configuration>
     <startup> 
         
-    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/></startup>
+    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2"/></startup>
 </configuration>

oscardata/oscardata/ArraySend.cs

@@ -17,6 +17,7 @@ namespace oscardata
         public static Byte filestat = statics.noTX;
         static private readonly object busyLock = new object();
         static int timeout_period_ms = 10;
+        static UInt16 fncrc;
 
         // start a timer which is used to send a file from txdata
         public static void ArraySendInit()
@@ -81,7 +82,7 @@ namespace oscardata
 
             // CRC16 over complete file contents is the file ID
             Crc c = new Crc();
-            UInt16 fncrc = c.crc16_messagecalc(data, data.Length);
+            fncrc = c.crc16_messagecalc(data, data.Length);
 
             // create the file header
             // 50 bytes ... Filename (or first 50 chars of the filename)
@@ -133,7 +134,7 @@ namespace oscardata
             return null;
         }
 
-        // runs every 10 ms
+        // runs every 10 ms to send a file
         static void TimerTick(object stateInfo)
         {
             // check if we need to send something
@@ -157,7 +158,7 @@ namespace oscardata
                 }
                 else
                 {
-                    // additional frame follow
+                    // additional frame follows
                     // from txdata send one chunk of length statics.PayloadLen
                     // frame is repeated for preamble by hsmodem.cpp
                     Array.Copy(txdata, 0, txarr, 0, statics.PayloadLen);
@@ -176,8 +177,8 @@ namespace oscardata
                 {
                     // send as the last frame
                     Array.Copy(txdata, txpos, txarr, 0, restlen); // unused byte will be 0
-                    // send the last frame a couple of times
+
-                    for(int i=0; i<10; i++)
+                    // send the last frame a couple of times (see hsmodem.cpp)
                     txudp(txarr, txtype, statics.LastFrame);
                     setSending(false);  // transmission complete
                 }

oscardata/oscardata/Form1.Designer.cs

@@ -97,6 +97,9 @@
             this.label11 = new System.Windows.Forms.Label();
             this.tabPage_setup = new System.Windows.Forms.TabPage();
             this.groupBox4 = new System.Windows.Forms.GroupBox();
+            this.label13 = new System.Windows.Forms.Label();
+            this.label12 = new System.Windows.Forms.Label();
+            this.cb_safemode = new System.Windows.Forms.ComboBox();
             this.cb_language = new System.Windows.Forms.ComboBox();
             this.cb_autostart = new System.Windows.Forms.CheckBox();
             this.bt_shutdown = new System.Windows.Forms.Button();
@@ -104,6 +107,8 @@
             this.bt_resetmodem = new System.Windows.Forms.Button();
             this.textBox3 = new System.Windows.Forms.TextBox();
             this.groupBox3 = new System.Windows.Forms.GroupBox();
+            this.vu_cap = new KmProgressBar();
+            this.vu_pb = new KmProgressBar();
             this.pb_audioCAPstatus = new System.Windows.Forms.PictureBox();
             this.pb_audioPBstatus = new System.Windows.Forms.PictureBox();
             this.label6 = new System.Windows.Forms.Label();
@@ -130,10 +135,10 @@
             this.cb_speed = new System.Windows.Forms.ComboBox();
             this.label_speed = new System.Windows.Forms.Label();
             this.timer_searchmodem = new System.Windows.Forms.Timer(this.components);
-            this.progressBar_fifo = new System.Windows.Forms.ProgressBar();
+            this.progressBar_fifo = new KmProgressBar();
             this.label_fifo = new System.Windows.Forms.Label();
             this.bt_blockinfo = new System.Windows.Forms.Button();
-            this.progressBar_capfifo = new System.Windows.Forms.ProgressBar();
+            this.progressBar_capfifo = new KmProgressBar();
             this.label_capfifo = new System.Windows.Forms.Label();
             this.lb_rxsignal = new System.Windows.Forms.Label();
             this.lb_rxsync = new System.Windows.Forms.Label();
@@ -223,7 +228,7 @@
             // timer_qpsk
             // 
             this.timer_qpsk.Enabled = true;
-            this.timer_qpsk.Interval = 500;
+            this.timer_qpsk.Interval = 200;
             this.timer_qpsk.Tick += new System.EventHandler(this.timer_qpsk_Tick);
             // 
             // panel_txspectrum
@@ -926,6 +931,9 @@
             // 
             // groupBox4
             // 
+            this.groupBox4.Controls.Add(this.label13);
+            this.groupBox4.Controls.Add(this.label12);
+            this.groupBox4.Controls.Add(this.cb_safemode);
             this.groupBox4.Controls.Add(this.cb_language);
             this.groupBox4.Controls.Add(this.cb_autostart);
             this.groupBox4.Controls.Add(this.bt_shutdown);
@@ -939,13 +947,44 @@
             this.groupBox4.TabStop = false;
             this.groupBox4.Text = "Maintenance";
             // 
+            // label13
+            // 
+            this.label13.AutoSize = true;
+            this.label13.Location = new System.Drawing.Point(240, 78);
+            this.label13.Name = "label13";
+            this.label13.Size = new System.Drawing.Size(70, 13);
+            this.label13.TabIndex = 27;
+            this.label13.Text = "data security:";
+            // 
+            // label12
+            // 
+            this.label12.AutoSize = true;
+            this.label12.Location = new System.Drawing.Point(253, 23);
+            this.label12.Name = "label12";
+            this.label12.Size = new System.Drawing.Size(54, 13);
+            this.label12.TabIndex = 26;
+            this.label12.Text = "language:";
+            // 
+            // cb_safemode
+            // 
+            this.cb_safemode.FormattingEnabled = true;
+            this.cb_safemode.Items.AddRange(new object[] {
+            "off (fast)",
+            "medium",
+            "high (slow)"});
+            this.cb_safemode.Location = new System.Drawing.Point(326, 75);
+            this.cb_safemode.Name = "cb_safemode";
+            this.cb_safemode.Size = new System.Drawing.Size(110, 21);
+            this.cb_safemode.TabIndex = 25;
+            this.cb_safemode.Text = "off";
+            // 
             // cb_language
             // 
             this.cb_language.FormattingEnabled = true;
             this.cb_language.Items.AddRange(new object[] {
             "English",
             "German/Deutsch"});
-            this.cb_language.Location = new System.Drawing.Point(207, 19);
+            this.cb_language.Location = new System.Drawing.Point(326, 19);
             this.cb_language.Name = "cb_language";
             this.cb_language.Size = new System.Drawing.Size(110, 21);
             this.cb_language.TabIndex = 24;
@@ -989,7 +1028,7 @@
             // 
             // bt_resetmodem
             // 
-            this.bt_resetmodem.Location = new System.Drawing.Point(356, 82);
+            this.bt_resetmodem.Location = new System.Drawing.Point(529, 92);
             this.bt_resetmodem.Name = "bt_resetmodem";
             this.bt_resetmodem.Size = new System.Drawing.Size(117, 23);
             this.bt_resetmodem.TabIndex = 6;
@@ -1012,6 +1051,8 @@
             // 
             // groupBox3
             // 
+            this.groupBox3.Controls.Add(this.vu_cap);
+            this.groupBox3.Controls.Add(this.vu_pb);
             this.groupBox3.Controls.Add(this.pb_audioCAPstatus);
             this.groupBox3.Controls.Add(this.pb_audioPBstatus);
             this.groupBox3.Controls.Add(this.label6);
@@ -1029,11 +1070,25 @@
             this.groupBox3.TabStop = false;
             this.groupBox3.Text = "Transceiver Audio";
             // 
+            // vu_cap
+            // 
+            this.vu_cap.Location = new System.Drawing.Point(479, 87);
+            this.vu_cap.Name = "vu_cap";
+            this.vu_cap.Size = new System.Drawing.Size(100, 10);
+            this.vu_cap.TabIndex = 20;
+            // 
+            // vu_pb
+            // 
+            this.vu_pb.Location = new System.Drawing.Point(479, 45);
+            this.vu_pb.Name = "vu_pb";
+            this.vu_pb.Size = new System.Drawing.Size(100, 10);
+            this.vu_pb.TabIndex = 19;
+            // 
             // pb_audioCAPstatus
             // 
             this.pb_audioCAPstatus.BackgroundImage = global::oscardata.Properties.Resources.ok;
             this.pb_audioCAPstatus.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Zoom;
-            this.pb_audioCAPstatus.Location = new System.Drawing.Point(375, 52);
+            this.pb_audioCAPstatus.Location = new System.Drawing.Point(375, 63);
             this.pb_audioCAPstatus.Name = "pb_audioCAPstatus";
             this.pb_audioCAPstatus.Size = new System.Drawing.Size(21, 21);
             this.pb_audioCAPstatus.TabIndex = 18;
@@ -1052,7 +1107,7 @@
             // label6
             // 
             this.label6.AutoSize = true;
-            this.label6.Location = new System.Drawing.Point(428, 54);
+            this.label6.Location = new System.Drawing.Point(428, 65);
             this.label6.Name = "label6";
             this.label6.Size = new System.Drawing.Size(45, 13);
             this.label6.TabIndex = 16;
@@ -1070,9 +1125,10 @@
             // tb_CAPvol
             // 
             this.tb_CAPvol.Cursor = System.Windows.Forms.Cursors.SizeAll;
-            this.tb_CAPvol.Location = new System.Drawing.Point(479, 50);
+            this.tb_CAPvol.Location = new System.Drawing.Point(479, 61);
             this.tb_CAPvol.Maximum = 100;
             this.tb_CAPvol.MaximumSize = new System.Drawing.Size(0, 24);
+            this.tb_CAPvol.Minimum = 1;
             this.tb_CAPvol.MinimumSize = new System.Drawing.Size(100, 0);
             this.tb_CAPvol.Name = "tb_CAPvol";
             this.tb_CAPvol.Size = new System.Drawing.Size(100, 24);
@@ -1087,6 +1143,7 @@
             this.tb_PBvol.Location = new System.Drawing.Point(479, 19);
             this.tb_PBvol.Maximum = 100;
             this.tb_PBvol.MaximumSize = new System.Drawing.Size(0, 24);
+            this.tb_PBvol.Minimum = 1;
             this.tb_PBvol.MinimumSize = new System.Drawing.Size(100, 0);
             this.tb_PBvol.Name = "tb_PBvol";
             this.tb_PBvol.Size = new System.Drawing.Size(100, 24);
@@ -1116,7 +1173,7 @@
             // cb_audioCAP
             // 
             this.cb_audioCAP.FormattingEnabled = true;
-            this.cb_audioCAP.Location = new System.Drawing.Point(138, 52);
+            this.cb_audioCAP.Location = new System.Drawing.Point(138, 63);
             this.cb_audioCAP.Name = "cb_audioCAP";
             this.cb_audioCAP.Size = new System.Drawing.Size(230, 21);
             this.cb_audioCAP.TabIndex = 9;
@@ -1125,7 +1182,7 @@
             // label4
             // 
             this.label4.AutoSize = true;
-            this.label4.Location = new System.Drawing.Point(12, 56);
+            this.label4.Location = new System.Drawing.Point(12, 67);
             this.label4.Name = "label4";
             this.label4.Size = new System.Drawing.Size(112, 13);
             this.label4.TabIndex = 10;
@@ -1538,7 +1595,7 @@
         private System.Windows.Forms.Label label6;
         private System.Windows.Forms.Label label5;
         private System.Windows.Forms.TrackBar tb_CAPvol;
-        private System.Windows.Forms.ProgressBar progressBar_fifo;
+        private KmProgressBar progressBar_fifo;
         private System.Windows.Forms.Label label_fifo;
         private System.Windows.Forms.CheckBox cb_autostart;
         private System.Windows.Forms.TextBox textBox5;
@@ -1579,13 +1636,18 @@
         private System.Windows.Forms.RadioButton rb_codec2;
         private System.Windows.Forms.CheckBox cb_digitalVoiceRXonly;
         private System.Windows.Forms.PictureBox pb_voice;
-        private System.Windows.Forms.ProgressBar progressBar_capfifo;
+        private KmProgressBar progressBar_capfifo;
         private System.Windows.Forms.Label label_capfifo;
         private System.Windows.Forms.PictureBox pb_rxsignal;
         private System.Windows.Forms.Label lb_rxsignal;
         private System.Windows.Forms.Label lb_rxsync;
         private System.Windows.Forms.PictureBox pb_rxsync;
         private System.Windows.Forms.ComboBox cb_language;
+        private System.Windows.Forms.Label label13;
+        private System.Windows.Forms.Label label12;
+        private System.Windows.Forms.ComboBox cb_safemode;
+        private KmProgressBar vu_cap;
+        private KmProgressBar vu_pb;
     }
 }
 

oscardata/oscardata/Form1.cs

@@ -400,7 +400,6 @@ namespace oscardata
         // RX timer
         int rxstat = 0;
         int speed;
-        int maxlevel = 0;
         private void timer_udprx_Tick(object sender, EventArgs e)
         {
             while (true)
@@ -418,11 +417,11 @@ namespace oscardata
                 speed = rxd[5];
                 speed <<= 8;
                 speed += rxd[6];
-                maxlevel = rxd[7];
+                int dummy3 = rxd[7];
                 int dummy4 = rxd[8];
                 int dummy5 = rxd[9];
 
-                rxbytecounter += statics.UdpBlocklen;
+                rxbytecounter = statics.UdpBlocklen * rxfrmnum;
 
                 Byte[] rxdata = new byte[rxd.Length - 10];
                 Array.Copy(rxd, 10, rxdata, 0, rxd.Length - 10);
@@ -581,6 +580,32 @@ namespace oscardata
             // Show RX Status LEDs
             if (statics.RXlevelDetected == 1) pb_rxsignal.BackgroundImage = Resources.greenmarker; else pb_rxsignal.BackgroundImage = Resources.redmarker;
             if (statics.RXinSync == 1 && statics.RXlevelDetected == 1) pb_rxsync.BackgroundImage = Resources.greenmarker; else pb_rxsync.BackgroundImage = Resources.redmarker;
+
+            // update rx,tx level progress bar
+            int factor = 1;
+            int addf = 80;
+            double vl100 = (100 / addf) + Math.Log10(100 + factor);
+            double vl = ((double)statics.maxRXlevel / addf) + Math.Log10((double)statics.maxRXlevel + factor);
+            vl = vl * 100 / vl100;
+            if (vl > 99) vl = 99;
+            if (vl < 1) vl = 1;
+            vu_cap.Value = (int)vl;
+            if (vl < 20 || vl > 85)
+                vu_cap.ForeColor = Color.Red;
+            else
+                vu_cap.ForeColor = Color.Yellow;
+
+            addf = 80;
+            vl = ((double)statics.maxTXlevel / addf) + Math.Log10((double)statics.maxTXlevel + factor);
+            vl100 = (100 / addf) + Math.Log10(100 + factor);
+            vl = vl * 100 / vl100;
+            if (vl > 99) vl = 99;
+            if (vl < 1) vl = 1;
+            vu_pb.Value = (int)vl;
+            if(vl <20 || vl > 85)
+                vu_pb.ForeColor = Color.Red;
+            else
+                vu_pb.ForeColor = Color.Yellow;
         }
 
         private void panel_constel_Paint(object sender, PaintEventArgs e)
@@ -602,7 +627,7 @@ namespace oscardata
         static Brush brgreen = new SolidBrush(Color.FromArgb(255, (byte)240, (byte)255, (byte)240));
         static Brush brgray = new SolidBrush(Color.FromArgb(255, (byte)220, (byte)220, (byte)220));
         static Pen pen = new Pen(Brushes.Black);
-        static Pen penblue = new Pen(Brushes.Blue, 2);
+        static Pen penblue = new Pen(Brushes.Blue, 1);
         static Pen pengrey = new Pen(brgray, 1);
         Font fnt = new Font("Verdana", 8.0f);
         Font smallfnt = new Font("Verdana", 6.0f);
@@ -673,12 +698,14 @@ namespace oscardata
             for (int i = 0; i < maxxval; i++)
             {
                 UInt16 u = 0;
-                if (i >= 1 && i < maxxval - 1)
+                if (i >= 2 && i < maxxval - 2)
-                    u = (UInt16)((su[i - 1] + su[i] + su[i + 1]) / 3);
+                    u = (UInt16)((su[i - 2] + su[i - 1] + su[i] + su[i + 1] + su[i + 2]) / 5);
                 else
                     u = su[i];
 
-                u *= 3;
+                if (i < 3) u = 0;
+
+                u *= 10;
                 gp.AddLine(GetFFTPos(i, lastu), GetFFTPos(i + 1, u));
                 lastu = u;
             }
@@ -698,7 +725,7 @@ namespace oscardata
                 dam[0, i] = v[i];
         }
 
-        readonly static int meansize = 20;
+        readonly static int meansize = 6;//0;
         readonly static int maxxval = (statics.real_datarate / 10) * 6 / 10;
         readonly int maxyval = 3000;
 
@@ -1154,7 +1181,8 @@ namespace oscardata
          * 3 ... announcement on/off, duration
          * 4 ... DV loudspeaker volume
          * 5 ... DV mic volume
-         * 6..9 ... unused
+         * 6 ... safe mode
+         * 7..9 ... unused
          * 10 .. 109 ... PB device name
          * 110 .. 209 ... CAP device name
          * 
@@ -1162,6 +1190,10 @@ namespace oscardata
 
         private void search_modem()
         {
+            Byte safemode = 0; //number of frame repeats
+            if (cb_safemode.Text.Contains("medium")) safemode = 2;
+            else if (cb_safemode.Text.Contains("high")) safemode = 4;
+
             Byte[] txb = new byte[210];
             txb[0] = 0x3c;  // ID of this message
             txb[1] = (Byte)tb_PBvol.Value;
@@ -1169,7 +1201,7 @@ namespace oscardata
             txb[3] = (Byte)cb_announcement.Items.IndexOf(cb_announcement.Text);
             txb[4] = (Byte)tb_loadspeaker.Value;
             txb[5] = (Byte)tb_mic.Value;
-            txb[6] = (Byte)0;   // unused
+            txb[6] = safemode;
             txb[7] = (Byte)0;   // unused
             txb[8] = (Byte)0;   // unused
             txb[9] = (Byte)0;   // unused

oscardata/oscardata/Form1.resx

@@ -137,7 +137,7 @@
         AAEAAAD/////AQAAAAAAAAAMAgAAAFdTeXN0ZW0uV2luZG93cy5Gb3JtcywgVmVyc2lvbj00LjAuMC4w
         LCBDdWx0dXJlPW5ldXRyYWwsIFB1YmxpY0tleVRva2VuPWI3N2E1YzU2MTkzNGUwODkFAQAAACZTeXN0
         ZW0uV2luZG93cy5Gb3Jtcy5JbWFnZUxpc3RTdHJlYW1lcgEAAAAERGF0YQcCAgAAAAkDAAAADwMAAABw
-        FwAAAk1TRnQBSQFMAgEBDQEAAUABAQFAAQEBEAEAARABAAT/AQkBAAj/AUIBTQE2AQQGAAE2AQQCAAEo
+        FwAAAk1TRnQBSQFMAgEBDQEAAUABAgFAAQIBEAEAARABAAT/AQkBAAj/AUIBTQE2AQQGAAE2AQQCAAEo
         AwABQAMAAUADAAEBAQABCAYAARAYAAGAAgABgAMAAoABAAGAAwABgAEAAYABAAKAAgADwAEAAcAB3AHA
         AQAB8AHKAaYBAAEzBQABMwEAATMBAAEzAQACMwIAAxYBAAMcAQADIgEAAykBAANVAQADTQEAA0IBAAM5
         AQABgAF8Af8BAAJQAf8BAAGTAQAB1gEAAf8B7AHMAQABxgHWAe8BAAHWAucBAAGQAakBrQIAAf8BMwMA

oscardata/oscardata/KmProgressBar.cs

@@ -0,0 +1,55 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace oscardata
+{
+    class KmProgressBar : ProgressBar
+    {
+        double myvalue = 0;
+        public KmProgressBar()
+        {
+            SetStyle(ControlStyles.UserPaint, true);
+            SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
+        }
+
+        protected override void OnPaintBackground(PaintEventArgs pevent)
+        {
+            // None... Helps control the flicker.
+        }
+
+        protected override void OnPaint(PaintEventArgs e)
+        {
+            try
+            {
+                Rectangle rect = ClientRectangle;
+                Graphics g = e.Graphics;
+                Brush br = new SolidBrush(Color.FromArgb(255, ForeColor.R, ForeColor.G, ForeColor.B));
+
+                g.FillRectangle(Brushes.LightGray, rect);
+                rect.Inflate(-1, -1);
+                g.FillRectangle(Brushes.White, rect);
+                rect.Inflate(-1, -1);
+
+                double diff = Math.Abs(Value - myvalue);
+                if (Value > myvalue) myvalue += diff/10;
+                if (Value < myvalue) myvalue -= diff / 10;
+
+                //myvalue = Value;
+
+                if (myvalue > 0)
+                {
+                    // As we doing this ourselves we need to draw the chunks on the progress bar
+                    Rectangle clip = new Rectangle(rect.X, rect.Y, (int)Math.Round(((double)myvalue / Maximum) * rect.Width), rect.Height);
+                    g.FillRectangle(br,clip);
+                }
+            }
+            catch { }
+        }
+    }
+}

oscardata/oscardata/Properties/Settings.Designer.cs

@@ -12,7 +12,7 @@ namespace oscardata.Properties {
     
     
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "16.7.0.0")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "16.8.1.0")]
     internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {
         
         private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));

oscardata/oscardata/config.cs

@@ -76,6 +76,8 @@ namespace oscardata
         public static int initVoiceStatus;
         public static int RXlevelDetected = 0;
         public static int RXinSync = 0;
+        public static int maxRXlevel = 0;
+        public static int maxTXlevel = 0;
 
 
         public static String[] getOwnIPs()

oscardata/oscardata/oscardata.csproj

@@ -8,7 +8,7 @@
     <OutputType>WinExe</OutputType>
     <RootNamespace>oscardata</RootNamespace>
     <AssemblyName>oscardata</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <TargetFrameworkProfile />
@@ -71,6 +71,9 @@
       <DependentUpon>Form2_showtext.cs</DependentUpon>
     </Compile>
     <Compile Include="imagehandler.cs" />
+    <Compile Include="KmProgressBar.cs">
+      <SubType>Component</SubType>
+    </Compile>
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="receivefile.cs" />

oscardata/oscardata/receivefile.cs

@@ -24,11 +24,11 @@
 * =========================
 * 1) file header is received, get filename and file ID (which is the CRC16 over the complete file contents)
 * 2) is this file already existing ? yes-> 3)
-* 3) this file does not exist -> 4)
+*    this file does not exist -> 4)
 * 
 * 3) file with this name and ID exists is already, cancel reception, show file
 * 
-* 4) file dows not exist, receive the blocks
+* 4) file doews not exist, receive the blocks
 * 5) a block is missing -> find a previous block-file with this name+ID. If exists, take the block from this file
 * 6) reception complete, the files is OK -> save the file, delete a block file
 * 7) reception complete, the files is incomplete -> save the block file for late use
@@ -189,6 +189,8 @@ namespace oscardata
             if (!autoRXnum)
                 blockidx = rxfrmnum;
 
+            Console.WriteLine("minfo:" + minfo + " framenum:" + rxfrmnum + " blockidx:" + blockidx);
+
             Array.Copy(rxd, 10, rxdata, 0, rxd.Length - 10);
             return true;
         }
@@ -269,7 +271,10 @@ namespace oscardata
 
         public bool blockstat(int[] result)
         {
+            // return if no blocks received
             if (blockidx == 0) return false;
+
+            // count the number of good blocks
             int ok = 0;
             for (int i = 0; i <= blockidx; i++)
             {
@@ -278,6 +283,7 @@ namespace oscardata
             result[0] = blockidx+1; // +1 because we start with block 0
             result[1] = ok;
 
+            // store in lastblockvalid for later evaluation for status display on the screen
             Array.Copy(blockvalid, lastblockvalid, blockvalid.Length);
             lastblockidx = blockidx;
 
@@ -385,10 +391,12 @@ namespace oscardata
 
             if (autoRXnum)
             {
+                // for compatibility with old implementation which did not send a block number
                 blockidx++;
                 Console.WriteLine("blockidx: do auto increment " + blockidx);
             }
 
+            // insert the received payload into the block buffer and set this block's status to "valid"
             for (int i = 0; i < rxdata.Length; i++)
                 blockbuf[blockidx, i] = rxdata[i];
 

oscardata/oscardata/udp.cs

@@ -125,6 +125,8 @@ namespace oscardata
                             statics.CAPfifousage = b[1];
                             statics.RXlevelDetected = b[2];
                             statics.RXinSync = b[3];
+                            statics.maxRXlevel = b[4];
+                            statics.maxTXlevel = b[5];
                             Byte[] b1 = new byte[b.Length - 4];
                             Array.Copy(b, 4, b1, 0, b1.Length);
                             uq_fft.Add(b1);