added adpcm hidden config, and fixed tmp file moving before recording.. heh

5 files changed, 350 insertions, 113 deletions

diff --git a/core/applets/vmemo/adpcm.c b/core/applets/vmemo/adpcm.c
new file mode 100644
index 0000000..c4dfa50
--- a/dev/null
+++ b/core/applets/vmemo/adpcm.c
@@ -0,0 +1,252 @@
+/***********************************************************
+Copyright 1992 by Stichting Mathematisch Centrum, Amsterdam, The
+Netherlands.
+
+                        All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its 
+documentation for any purpose and without fee is hereby granted, 
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in 
+supporting documentation, and that the names of Stichting Mathematisch
+Centrum or CWI not be used in advertising or publicity pertaining to
+distribution of the software without specific, written prior permission.
+
+STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
+THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
+FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+******************************************************************/
+
+/*
+** Intel/DVI ADPCM coder/decoder.
+**
+** The algorithm for this coder was taken from the IMA Compatability Project
+** proceedings, Vol 2, Number 2; May 1992.
+**
+** Version 1.2, 18-Dec-92.
+**
+** Change log:
+** - Fixed a stupid bug, where the delta was computed as
+**   stepsize*code/4 in stead of stepsize*(code+0.5)/4.
+** - There was an off-by-one error causing it to pick
+**   an incorrect delta once in a blue moon.
+** - The NODIVMUL define has been removed. Computations are now always done
+**   using shifts, adds and subtracts. It turned out that, because the standard
+**   is defined using shift/add/subtract, you needed bits of fixup code
+**   (because the div/mul simulation using shift/add/sub made some rounding
+**   errors that real div/mul don't make) and all together the resultant code
+**   ran slower than just using the shifts all the time.
+** - Changed some of the variable names to be more meaningful.
+*/
+
+#include "adpcm.h"
+#include <stdio.h> /*DBG*/
+
+#ifndef __STDC__
+#define signed
+#endif
+
+/* Intel ADPCM step variation table */
+static int indexTable[16] = {
+    -1, -1, -1, -1, 2, 4, 6, 8,
+    -1, -1, -1, -1, 2, 4, 6, 8,
+};
+
+static int stepsizeTable[89] = {
+    7, 8, 9, 10, 11, 12, 13, 14, 16, 17,
+    19, 21, 23, 25, 28, 31, 34, 37, 41, 45,
+    50, 55, 60, 66, 73, 80, 88, 97, 107, 118,
+    130, 143, 157, 173, 190, 209, 230, 253, 279, 307,
+    337, 371, 408, 449, 494, 544, 598, 658, 724, 796,
+    876, 963, 1060, 1166, 1282, 1411, 1552, 1707, 1878, 2066,
+    2272, 2499, 2749, 3024, 3327, 3660, 4026, 4428, 4871, 5358,
+    5894, 6484, 7132, 7845, 8630, 9493, 10442, 11487, 12635, 13899,
+    15289, 16818, 18500, 20350, 22385, 24623, 27086, 29794, 32767
+};
+    
+void
+adpcm_coder(indata, outdata, len, state)
+    short indata[];
+    char outdata[];
+    int len;
+    struct adpcm_state *state;
+{
+            short *inp;                 /* Input buffer pointer */
+            signed char *outp;  /* output buffer pointer */
+            int val;            /* Current input sample value */
+            int sign;           /* Current adpcm sign bit */
+            int delta;          /* Current adpcm output value */
+            int diff;           /* Difference between val and valprev */
+            int step;           /* Stepsize */
+            int valpred;        /* Predicted output value */
+            int vpdiff;                 /* Current change to valpred */
+            int index;          /* Current step change index */
+            int outputbuffer;   /* place to keep previous 4-bit value */
+            int bufferstep;     /* toggle between outputbuffer/output */
+
+    outp = (signed char *)outdata;
+    inp = indata;
+
+    valpred = state->valprev;
+    index = state->index;
+    step = stepsizeTable[index];
+    
+    bufferstep = 1;
+
+    for ( ; len > 0 ; len-- ) {
+        val = *inp++;
+
+        /* Step 1 - compute difference with previous value */
+        diff = val - valpred;
+        sign = (diff < 0) ? 8 : 0;
+        if ( sign ) diff = (-diff);
+
+        /* Step 2 - Divide and clamp */
+        /* Note:
+        ** This code *approximately* computes:
+        **    delta = diff*4/step;
+        **    vpdiff = (delta+0.5)*step/4;
+        ** but in shift step bits are dropped. The net result of this is
+        ** that even if you have fast mul/div hardware you cannot put it to
+        ** good use since the fixup would be too expensive.
+        */
+        delta = 0;
+        vpdiff = (step >> 3);
+        
+        if ( diff >= step ) {
+            delta = 4;
+            diff -= step;
+            vpdiff += step;
+        }
+        step >>= 1;
+        if ( diff >= step  ) {
+            delta |= 2;
+            diff -= step;
+            vpdiff += step;
+        }
+        step >>= 1;
+        if ( diff >= step ) {
+            delta |= 1;
+            vpdiff += step;
+        }
+
+        /* Step 3 - Update previous value */
+        if ( sign )
+          valpred -= vpdiff;
+        else
+          valpred += vpdiff;
+
+        /* Step 4 - Clamp previous value to 16 bits */
+        if ( valpred > 32767 )
+          valpred = 32767;
+        else if ( valpred < -32768 )
+          valpred = -32768;
+
+        /* Step 5 - Assemble value, update index and step values */
+        delta |= sign;
+        
+        index += indexTable[delta];
+        if ( index < 0 ) index = 0;
+        if ( index > 88 ) index = 88;
+        step = stepsizeTable[index];
+
+        /* Step 6 - Output value */
+        if ( bufferstep ) {
+            outputbuffer = (delta << 4) & 0xf0;
+        } else {
+            *outp++ = (delta & 0x0f) | outputbuffer;
+        }
+        bufferstep = !bufferstep;
+    }
+
+    /* Output last step, if needed */
+    if ( !bufferstep )
+      *outp++ = outputbuffer;
+    
+    state->valprev = valpred;
+    state->index = index;
+}
+
+void
+adpcm_decoder(indata, outdata, len, state)
+    char indata[];
+    short outdata[];
+    int len;
+    struct adpcm_state *state;
+{
+            signed char *inp;   /* Input buffer pointer */
+            short *outp;        /* output buffer pointer */
+            int sign;           /* Current adpcm sign bit */
+            int delta;          /* Current adpcm output value */
+            int step;           /* Stepsize */
+            int valpred;        /* Predicted value */
+            int vpdiff;                 /* Current change to valpred */
+            int index;          /* Current step change index */
+            int inputbuffer;    /* place to keep next 4-bit value */
+            int bufferstep;     /* toggle between inputbuffer/input */
+
+    outp = outdata;
+    inp = (signed char *)indata;
+
+    valpred = state->valprev;
+    index = state->index;
+    step = stepsizeTable[index];
+
+    bufferstep = 0;
+    
+    for ( ; len > 0 ; len-- ) {
+        
+        /* Step 1 - get the delta value */
+        if ( bufferstep ) {
+            delta = inputbuffer & 0xf;
+        } else {
+            inputbuffer = *inp++;
+            delta = (inputbuffer >> 4) & 0xf;
+        }
+        bufferstep = !bufferstep;
+
+        /* Step 2 - Find new index value (for later) */
+        index += indexTable[delta];
+        if ( index < 0 ) index = 0;
+        if ( index > 88 ) index = 88;
+
+        /* Step 3 - Separate sign and magnitude */
+        sign = delta & 8;
+        delta = delta & 7;
+
+        /* Step 4 - Compute difference and new predicted value */
+        /*
+        ** Computes 'vpdiff = (delta+0.5)*step/4', but see comment
+        ** in adpcm_coder.
+        */
+        vpdiff = step >> 3;
+        if ( delta & 4 ) vpdiff += step;
+        if ( delta & 2 ) vpdiff += step>>1;
+        if ( delta & 1 ) vpdiff += step>>2;
+
+        if ( sign )
+          valpred -= vpdiff;
+        else
+          valpred += vpdiff;
+
+        /* Step 5 - clamp output value */
+        if ( valpred > 32767 )
+          valpred = 32767;
+        else if ( valpred < -32768 )
+          valpred = -32768;
+
+        /* Step 6 - Update step value */
+        step = stepsizeTable[index];
+
+        /* Step 7 - Output value */
+        *outp++ = valpred;
+    }
+
+    state->valprev = valpred;
+    state->index = index;
+}
diff --git a/core/applets/vmemo/adpcm.h b/core/applets/vmemo/adpcm.h
new file mode 100644
index 0000000..9c17ffa
--- a/dev/null
+++ b/core/applets/vmemo/adpcm.h
@@ -0,0 +1,19 @@
+/*
+** adpcm.h - include file for adpcm coder.
+**
+** Version 1.0, 7-Jul-92.
+*/
+
+struct adpcm_state {
+            short       valprev;/* Previous output value */
+            char        index;  /* Index into stepsize table */
+};
+
+#ifdef __STDC__
+#define ARGS(x) x
+#else
+#define ARGS(x) ()
+#endif
+
+void adpcm_coder ARGS((short [], char [], int, struct adpcm_state *));
+void adpcm_decoder ARGS((char [], short [], int, struct adpcm_state *));
diff --git a/core/applets/vmemo/vmemo.cpp b/core/applets/vmemo/vmemo.cpp
index b77e3b8..b5239eb 100644
--- a/core/applets/vmemo/vmemo.cpp
+++ b/core/applets/vmemo/vmemo.cpp
@@ -1,83 +1,94 @@
 /************************************************************************************
  **
  ** This file may be distributed and/or modified under the terms of the
  ** GNU General Public License version 2 as published by the Free Software
  ** Foundation and appearing in the file LICENSE.GPL included in the
  ** packaging of this file.
  **
  ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
  ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  **
  ************************************************************************************/
 // copyright 2002 Jeremy Cowgar <jc@cowgar.com>
 /*
  * $Id$
  */
 // Sun 03-17-2002  L.J.Potter <ljp@llornkcor.com>
+extern "C" {
+#include "adpcm.h"
+}
+
 #include <sys/utsname.h>
 #include <sys/time.h>
 #include <sys/types.h>
 #include <unistd.h>
 #include <stdio.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <sys/ioctl.h>
 #include <linux/soundcard.h>
 
 #include <string.h>
 #include <stdlib.h>
 #include <errno.h>
 #include <qtimer.h>
 
 typedef struct _waveheader {
   u_long  main_chunk; /* 'RIFF'  */
   u_long  length;     /* filelen */
   u_long  chunk_type; /* 'WAVE'  */
   u_long  sub_chunk;  /* 'fmt '                                               */
   u_long  sc_len;     /* length of sub_chunk, =16     
                          (chunckSize) format len */
   u_short format;     /* should be 1 for PCM-code        (formatTag)          */
 
   u_short modus;      /* 1 Mono, 2 Stereo                (channels)           */
   u_long  sample_fq;  /* samples per second              (samplesPerSecond)   */
   u_long  byte_p_sec; /* avg bytes per second            (avgBytePerSecond)   */
   u_short byte_p_spl; /* samplesize; 1 or 2 bytes        (blockAlign)         */
   u_short bit_p_spl;  /* 8, 12 or 16 bit                 (bitsPerSample)      */
 
   u_long  data_chunk; /* 'data'      */
 
   u_long  data_length;/* samplecount */
 } WaveHeader;
 
 #define RIFF        0x46464952
 #define WAVE        0x45564157
 #define FMT         0x20746D66
 #define DATA        0x61746164
 #define PCM_CODE    1
 #define WAVE_MONO   1
 #define WAVE_STEREO 2
 
+struct adpcm_state encoder_state;
+//struct adpcm_state decoder_state;
+
+#define WAVE_FORMAT_DVI_ADPCM (0x0011)
+#define WAVE_FORMAT_PCM (0x0001)
+
+
 #include "vmemo.h"
 
 #include <qpe/qpeapplication.h>
 #include <qpe/resource.h>
 #include <qpe/config.h>
 
 #include <qpainter.h>
 #include <qdatetime.h>
 #include <qregexp.h>
 #include <qsound.h>
 #include <qfile.h>
 #include <qmessagebox.h>
 
 int seq = 0;
 
 /* XPM */
 static char * vmemo_xpm[] = {
   "16 16 102 2",
   "   c None",
   ".  c #60636A",
   "+  c #6E6E72",
   "@  c #68696E",
   "#  c #4D525C",
   "$  c #6B6C70",
@@ -175,144 +186,138 @@ static char * vmemo_xpm[] = {
   "$. c #B5B5BE",
   "%. c #616167",
   "&. c #1A1D22",
   "*. c #000713",
   "=. c #1F1F21",
   "                                ",
   "            . + @ #             ",
   "          $ % & * = -           ",
   "        ; > , ' ) ! ~           ",
   "        { ] ^ / ( _ :           ",
   "        < [ } | 1 2 3           ",
   "      4 5 6 7 8 9 0 a b c       ",
   "    d e f g h i j 3 k l m n     ",
   "      o p q r s t u v w n       ",
   "      o x y z A B C D E n       ",
   "      F G H I J K L M N O       ",
   "      P Q R S T U V W X         ",
   "        Y Z ` b  ...+.          ",
   "          @.#.$.%.&.            ",
   "            *.B =.              ",
   "      n n n n n n n n n         "};
 
 
 VMemo::VMemo( QWidget *parent, const char *_name )
-  : QWidget( parent, _name )
-{
+  : QWidget( parent, _name ) {
   setFixedHeight( 18 );
   setFixedWidth( 14 );
   
   recording = FALSE;
 
   t_timer = new QTimer( this );
   connect( t_timer, SIGNAL( timeout() ), SLOT( timerBreak() ) );
   
   struct utsname name; /* check for embedix kernel running on the zaurus*/
   if (uname(&name) != -1) {
     QString release=name.release;
 
     Config vmCfg("Vmemo");
     vmCfg.setGroup("Defaults");
     int toggleKey = setToggleButton(vmCfg.readNumEntry("toggleKey", -1));
+    useADPCM = vmCfg.readBoolEntry("use_ADPCM", 0);
 
     qDebug("toggleKey %d", toggleKey);  
 
     if(release.find("embedix",0,TRUE) !=-1)
       systemZaurus=TRUE;
     else 
       systemZaurus=FALSE;
       
     myChannel = new QCopChannel( "QPE/VMemo", this );
     connect( myChannel, SIGNAL(received(const QCString&, const QByteArray&)),
              this, SLOT(receive(const QCString&, const QByteArray&)) );
 
     if( toggleKey != -1 ) {
       //            QPEApplication::grabKeyboard();
       QCopEnvelope e("QPE/Desktop", "keyRegister(int key, QString channel, QString message)");
       //           e << 4096; // Key_Escape
       //          e << Key_F5; //4148
       e << toggleKey;
       e << QString("QPE/VMemo");
       e << QString("toggleRecord()");
     }
     if(toggleKey == 1)
         usingIcon=TRUE;
     else
         usingIcon=FALSE;
     if( vmCfg.readNumEntry("hideIcon",0) == 1)
       hide();
   }
 }
 
-VMemo::~VMemo()
-{
+VMemo::~VMemo() {
 }
 
-void VMemo::receive( const QCString &msg, const QByteArray &data )
-{
+void VMemo::receive( const QCString &msg, const QByteArray &data ) {
   qDebug("receive");
   QDataStream stream( data, IO_ReadOnly );
   if (msg == "toggleRecord()")  {
     if (recording) {
       fromToggle = TRUE;
       mouseReleaseEvent(NULL);
 //      stopRecording();
     }  else {
       fromToggle = TRUE;
       //      mousePressEvent(NULL);
       startRecording();
     }
   }
 }
 
-void VMemo::paintEvent( QPaintEvent* )
-{
+void VMemo::paintEvent( QPaintEvent* ) {
   QPainter p(this);
   p.drawPixmap( 0, 1,( const char** )  vmemo_xpm );
 }
 
-void VMemo::mousePressEvent( QMouseEvent * me)
-{
+void VMemo::mousePressEvent( QMouseEvent * me) {
   // just to be safe
   if (recording) {
           recording = FALSE;
           return;
         }
   /*  No mousePress/mouseRelease recording on the iPAQ. The REC button on the iPAQ calls these functions
          mousePressEvent and mouseReleaseEvent with a NULL parameter.  */
-  if ( me->button() != LeftButton)
-
+  if ( me->button() != LeftButton ||  me != NULL) 
   //  if (!systemZaurus && me != NULL)
         return;
 
   if(!recording)
        startRecording();
    else
        stopRecording();
 }
 
-void VMemo::mouseReleaseEvent( QMouseEvent * )
-{
+void VMemo::mouseReleaseEvent( QMouseEvent * ) {
 //      if(usingIcon && !recording)
 //          stopRecording();
 }
 
 bool VMemo::startRecording() {
 
   if ( recording)
     return FALSE;
 
   Config config( "Vmemo" );
   config.setGroup( "System" );
 
   useAlerts = config.readBoolEntry("Alert",1);
   if(useAlerts) {
 
     msgLabel = new QLabel( 0, "alertLabel" );
     msgLabel->setText("<B><P><font size=+2>VMemo-Recording</font></B>");
     msgLabel->show();
   }
 
   //      if(useAlerts) 
   //  QMessageBox::message("VMemo","Really Record?");//) ==1)
   //             return;
   //     } else {
@@ -354,89 +359,87 @@ bool VMemo::startRecording() {
   fName = "vm_"+ dt.toString()+ ".wav";
   
   fileName+=fName;
   qDebug("filename is "+fileName);
   // No spaces in the filename
   fileName.replace(QRegExp("'"),"");
   fileName.replace(QRegExp(" "),"_");
   fileName.replace(QRegExp(":"),".");
   fileName.replace(QRegExp(","),"");
   
 // open tmp file here
   char *pointer;
   pointer=tmpnam(NULL); 
   qDebug("Opening tmp file %s",pointer);
   
   if(openWAV(pointer ) == -1)  {
 
 //  if(openWAV(fileName.latin1()) == -1)  {
     QString err("Could not open the temp file\n");
     err += fileName;
     QMessageBox::critical(0, "vmemo", err, "Abort");
     ::close(dsp);
     return FALSE;
   }
-  QString cmd;
-  cmd.sprintf("mv %s "+fileName,pointer);
+  record();
 
+  QString cmd;
+  cmd.sprintf("mv %s "+fileName, pointer);
 // move tmp file to regular file here
   system(cmd.latin1());
 
   QArray<int> cats(1);
   cats[0] = config.readNumEntry("Category", 0);
   
   QString dlName("vm_");
   dlName += dt.toString();
   DocLnk l;
   l.setFile(fileName);
   l.setName(dlName);
   l.setType("audio/x-wav");
   l.setCategories(cats);
   l.writeLink();
-  
-  record();
 
   return TRUE;
 }
 
 void VMemo::stopRecording() {
     show();
     qDebug("Stopped recording");
     recording = FALSE;
     if(useAlerts) {
         msgLabel->close();
         msgLabel=0;
         delete msgLabel;
     }
     t_timer->stop();
     Config cfg("Vmemo");
     cfg.setGroup("Defaults");
     if( cfg.readNumEntry("hideIcon",0) == 1 )
         hide();
 }
 
-int VMemo::openDSP()
-{
+int VMemo::openDSP() {
   Config cfg("Vmemo");
   cfg.setGroup("Record");
   
   speed = cfg.readNumEntry("SampleRate", 22050);
   channels = cfg.readNumEntry("Stereo", 1) ? 2 : 1; // 1 = stereo(2), 0 = mono(1)
   if (cfg.readNumEntry("SixteenBit", 1)==1)  {
     format = AFMT_S16_LE;
     resolution = 16;
   } else {
     format = AFMT_U8;
     resolution = 8;
   }
 
   qDebug("samplerate: %d, channels %d, resolution %d", speed, channels, resolution);  
 
   if(systemZaurus) {
     dsp = open("/dev/dsp1", O_RDONLY); //Zaurus needs /dev/dsp1
     channels=1; //zaurus has one input channel
   }  else {
     dsp = open("/dev/dsp", O_RDONLY);
   }
   
   if(dsp == -1)  {
     perror("open(\"/dev/dsp\")");
@@ -446,182 +449,145 @@ int VMemo::openDSP()
   }
   
   if(ioctl(dsp, SNDCTL_DSP_SETFMT , &format)==-1)  {
     perror("ioctl(\"SNDCTL_DSP_SETFMT\")");
     return -1;
   }
   if(ioctl(dsp, SNDCTL_DSP_CHANNELS , &channels)==-1)  {
     perror("ioctl(\"SNDCTL_DSP_CHANNELS\")");
     return -1;
   }
   if(ioctl(dsp, SNDCTL_DSP_SPEED , &speed)==-1)  {
     perror("ioctl(\"SNDCTL_DSP_SPEED\")");
     return -1;
   }
   if(ioctl(dsp, SOUND_PCM_READ_RATE , &rate)==-1)  {
     perror("ioctl(\"SOUND_PCM_READ_RATE\")");
     return -1;
   }
 
   QCopEnvelope( "QPE/System", "volumeChange(bool)" ) << FALSE; //mute
   
   return 1;
 }
 
-int VMemo::openWAV(const char *filename)
-{
+int VMemo::openWAV(const char *filename) {
   track.setName(filename);
   if(!track.open(IO_WriteOnly|IO_Truncate|IO_Raw)) {
     errorMsg=filename;
     return -1;
   }
 
   wav=track.handle();
   
   WaveHeader wh;
 
   wh.main_chunk = RIFF;
   wh.length=0; 
   wh.chunk_type = WAVE;
   wh.sub_chunk  = FMT;
   wh.sc_len     = 16;
-  wh.format     = PCM_CODE;
+  if(useADPCM)
+      wh.format     = WAVE_FORMAT_DVI_ADPCM;//PCM_CODE;
+  else
+      wh.format     = PCM_CODE;     
   wh.modus      = channels;
   wh.sample_fq  = speed;
   wh.byte_p_sec = speed * channels *  resolution/8;
   wh.byte_p_spl = channels * (resolution / 8); 
   wh.bit_p_spl  = resolution;
   wh.data_chunk = DATA;
   wh.data_length= 0; 
   //    qDebug("Write header channels %d, speed %d, b/s %d, blockalign %d, bitrate %d"
   //           , wh.modus, wh.sample_fq, wh.byte_p_sec, wh.byte_p_spl, wh.bit_p_spl );
   write (wav, &wh, sizeof(WaveHeader));
   
   return 1;
 }
 
-void VMemo::record(void)
-{
+void VMemo::record(void) {
   int length=0, result, value;
   QString msg;
   msg.sprintf("Recording format %d", format);
   qDebug(msg);
   Config config("Vmemo");
   config.setGroup("Record");
   int sRate=config.readNumEntry("SizeLimit", 30);
 
   t_timer->start( sRate * 1000+1000, TRUE);
 
-  if(systemZaurus) {
+//    if(systemZaurus) {
+//    } else { // 16 bit only capabilities
 
-    msg.sprintf("Recording format zaurus");
+    msg.sprintf("Recording format other");
     qDebug(msg);
-    signed short sound[1024], monoBuffer[1024];
-  
-    if(format==AFMT_S16_LE)  {
 
+    int bufsize=1024;
+    int bytesWritten=0;
+    signed short sound[1024], monoBuffer[1024];
+    char abuf[bufsize/2];
+    short sbuf[bufsize];
 
+    while(recording)  {
 
-      while(recording)   {
-
-        result = read(dsp, sound, 1024); // 8192
-        //        int j=0;
-
-        for (int i = 0; i < result; i++) { //since Z is mono do normally
-          monoBuffer[i] = sound[i];
+        if(useADPCM)
+            result = read( dsp, sbuf, bufsize); // 8192
+        else
+            result = read(dsp, sound, 1024); // 8192
+        if( result <= 0) {
+          perror("recording error ");
+//          qDebug(currentFileName);
+          QMessageBox::message(tr("Note"),tr("error recording"));
+          recording=FALSE;;
+          break;
         }
 
-        length+=write(wav, monoBuffer, result);
-        if(length<0)
-          recording=false;
-          //           for (int i = 0; i < result; i+=2) {
-        //             monoBuffer[j] = sound[i];
-        //             //            monoBuffer[j] = (sound[i]+sound[i+1])/2;
-
-        //             j++;
-        //           }
-        qApp->processEvents();
-        //                 printf("%d\r",length);
-        //                 fflush(stdout);
-      }
-    
-    } else { //AFMT_U8 
-      // 8bit unsigned
-      unsigned short sound[1024], monoBuffer[1024];
-      while(recording)   {
-        result = read(dsp, sound, 1024); // 8192
-        //        int j=0;
+        if(useADPCM) {
+            adpcm_coder( sbuf, abuf, result/2, &encoder_state);
+            bytesWritten =  ::write(wav, abuf, result/4);
 
-        //        if(systemZaurus) {
+        } else {
+            for (int i = 0; i < result; i++) { //since Z is mono do normally
+                monoBuffer[i] = sound[i];
+            }
 
-        for (int i = 0; i < result; i++) { //since Z is mono do normally
-          monoBuffer[i] = sound[i];
+            length+=write(wav, monoBuffer, result);
         }
-
-        length+=write(wav, monoBuffer, result);
-
-        //           for (int i = 0; i < result; i+=2) {
-        //             monoBuffer[j] = (sound[i]+sound[i+1])/2;
-        //             j++;
-        //           }
-        //           length+=write(wav, monoBuffer, result/2);
-        length += result;
-        //            printf("%d\r",length);
-        //               fflush(stdout);
-      }
-
-      qApp->processEvents();
-    }
-
-  } else { // 16 bit only capabilities
-
-
-    msg.sprintf("Recording format other");
-    qDebug(msg);
-
-    signed short sound[1024];//, monoBuffer[512];
-
-    while(recording)  {
-
-      result = read(dsp, sound, 1024); // 8192
-
-      write(wav, sound, result);
-      length += result;
+        length +=bytesWritten;
 
       if(length<0) {
-
         recording=false;
         perror("dev/dsp's is a lookin' messy");
         QMessageBox::message("Vmemo"," Done1 recording\n"+ fileName);
       }
       //       printf("%d\r",length);
       //       fflush(stdout);
       qApp->processEvents();
     }
     //  qDebug("file has length of %d lasting %d seconds",
     //         length, (( length / speed) / channels) / 2 );
     // medialplayer states wrong length in secs
-  }
+    //  }
 
   //>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<//
 
   value = length+36;
 
   lseek(wav, 4, SEEK_SET);
   write(wav, &value, 4);
   lseek(wav, 40, SEEK_SET);
 
   write(wav, &length, 4);
 
   track.close();
   qDebug("Track closed");
   
   if( ioctl( dsp, SNDCTL_DSP_RESET,0) == -1)
     perror("ioctl(\"SNDCTL_DSP_RESET\")");
 
   ::close(dsp);
   fileName = fileName.left(fileName.length()-4);
   //     if(useAlerts) 
   //         QMessageBox::message("Vmemo"," Done1 recording\n"+ fileName);
   qDebug("done recording "+fileName);
 
 //  QSound::play(Resource::findSound("vmemoe"));
diff --git a/core/applets/vmemo/vmemo.h b/core/applets/vmemo/vmemo.h
index 823c7b8..167af2a 100644
--- a/core/applets/vmemo/vmemo.h
+++ b/core/applets/vmemo/vmemo.h
@@ -15,49 +15,49 @@
  */
 
 #ifndef __VMEMO_H__
 #define __VMEMO_H__
 
 
 #include <qwidget.h>
 #include <qpixmap.h>
 #include <qpe/applnk.h>
 #include <qfile.h>
 #include <qpe/qcopenvelope_qws.h>
 #include <qlabel.h>
 #include <qtimer.h>
 
 class VMemo : public QWidget
 {
   Q_OBJECT
 public:
   VMemo( QWidget *parent, const char *name = NULL);
   ~VMemo();
   QFile track;  
   QString fileName, errorMsg;
   QLabel* msgLabel;
   QTimer *t_timer;
-bool usingIcon;
+bool usingIcon, useADPCM;
 public slots:
   void record();
   void mousePressEvent( QMouseEvent * );
   void mouseReleaseEvent( QMouseEvent * );
   void receive( const QCString &msg, const QByteArray &data );
   bool startRecording();
   void stopRecording();
   void timerBreak();
 private:
   bool useAlerts;
   void paintEvent( QPaintEvent* );
   int setToggleButton(int);
   int openDSP();
   int openWAV(const char *filename);
   bool fromToggle;
   QPixmap vmemoPixmap;
   QCopChannel *myChannel;
   bool systemZaurus;
   int dsp, wav, rate, speed, channels, format, resolution;
   bool recording;
 };
 
 #endif // __VMEMO_H__
 
diff --git a/core/applets/vmemo/vmemo.pro b/core/applets/vmemo/vmemo.pro
index f8007b6..6599b52 100644
--- a/core/applets/vmemo/vmemo.pro
+++ b/core/applets/vmemo/vmemo.pro
@@ -1,25 +1,25 @@
-        TEMPLATE= lib
-        CONFIG  += qt warn_on release
-        HEADERS=   vmemo.h vmemoimpl.h
-        SOURCES=   vmemo.cpp vmemoimpl.cpp
-        TARGET  = vmemoapplet
-        DESTDIR         =$(OPIEDIR)/plugins/applets
+TEMPLATE  = lib
+CONFIG    += qt warn_on release
+HEADERS =   vmemo.h vmemoimpl.h adpcm.h
+SOURCES =   vmemo.cpp vmemoimpl.cpp adpcm.c
+TARGET    = vmemoapplet
+DESTDIR   =$(OPIEDIR)/plugins/applets
 INCLUDEPATH += $(OPIEDIR)/include
 DEPENDPATH      += $(OPIEDIR)/include
 LIBS            += -lqpe
-        VERSION         = 1.0.0
+VERSION   = 1.0.0
 
 TRANSLATIONS = ../../../i18n/de/libvmemoapplet.ts \
-         ../../../i18n/en/libvmemoapplet.ts \
-         ../../../i18n/es/libvmemoapplet.ts \
-         ../../../i18n/fr/libvmemoapplet.ts \
-         ../../../i18n/hu/libvmemoapplet.ts \
-         ../../../i18n/ja/libvmemoapplet.ts \
-         ../../../i18n/ko/libvmemoapplet.ts \
-         ../../../i18n/no/libvmemoapplet.ts \
-         ../../../i18n/pl/libvmemoapplet.ts \
-         ../../../i18n/pt/libvmemoapplet.ts \
-         ../../../i18n/pt_BR/libvmemoapplet.ts \
-         ../../../i18n/sl/libvmemoapplet.ts \
-         ../../../i18n/zh_CN/libvmemoapplet.ts \
-         ../../../i18n/zh_TW/libvmemoapplet.ts
+   ../../../i18n/en/libvmemoapplet.ts \
+   ../../../i18n/es/libvmemoapplet.ts \
+   ../../../i18n/fr/libvmemoapplet.ts \
+   ../../../i18n/hu/libvmemoapplet.ts \
+   ../../../i18n/ja/libvmemoapplet.ts \
+   ../../../i18n/ko/libvmemoapplet.ts \
+   ../../../i18n/no/libvmemoapplet.ts \
+   ../../../i18n/pl/libvmemoapplet.ts \
+   ../../../i18n/pt/libvmemoapplet.ts \
+   ../../../i18n/pt_BR/libvmemoapplet.ts \
+   ../../../i18n/sl/libvmemoapplet.ts \
+   ../../../i18n/zh_CN/libvmemoapplet.ts \
+   ../../../i18n/zh_TW/libvmemoapplet.ts