cwIoAudioMidiApp,cwIoAudioRecordPlay,cwIoMidiRecordPlay : Add 'mute' feature

cwIoAudioMidiApp.cpp

@@ -35,9 +35,11 @@ namespace cw
       kMidiThruCheckId,
       kCurMidiEvtCntId,
       kTotalMidiEvtCntId,
+      kMidiMuteCheckId,
       
       kCurAudioSecsId,
       kTotalAudioSecsId,
+      kAudioMuteCheckId,
                 
       kSaveBtnId,
       kOpenBtnId,
@@ -66,10 +68,11 @@ namespace cw
       { kPanelDivId,     kMidiThruCheckId,   "midiThruCheckId" },
       { kPanelDivId,     kCurMidiEvtCntId,   "curMidiEvtCntId" },      
       { kPanelDivId,     kTotalMidiEvtCntId, "totalMidiEvtCntId" },
+      { kPanelDivId,     kMidiMuteCheckId,   "midiMuteCheckId" },
       
       { kPanelDivId,     kCurAudioSecsId,    "curAudioSecsId" },
       { kPanelDivId,     kTotalAudioSecsId,  "totalAudioSecsId" },
-      
+      { kPanelDivId,     kAudioMuteCheckId,  "audioMuteCheckId" },
         
       { kPanelDivId,     kSaveBtnId,      "saveBtnId" },
       { kPanelDivId,     kOpenBtnId,      "openBtnId" },
@@ -389,6 +392,14 @@ namespace cw
           _set_midi_thru_state(app, m.value->u.b);
           break;
 
+        case kMidiMuteCheckId:
+          midi_record_play::set_mute_state(app->mrpH,m.value->u.b);
+          break;
+
+        case kAudioMuteCheckId:
+          audio_record_play::set_mute_state(app->arpH,m.value->u.b);
+          break;
+            
         case kStartBtnId:
           _on_ui_start(app);
           break;

cwIoAudioRecordPlay.cpp

@@ -40,6 +40,8 @@ namespace cw
       bool           recordFl;
       bool           startedFl;
 
+      bool           mute_fl;
+      
       unsigned*      audioInChMapA;
       unsigned       audioInChMapN;
       unsigned*      audioOutChMapA;
@@ -170,6 +172,9 @@ namespace cw
       {
         unsigned srcChIdx = p->audioInChMapA == nullptr ? chIdx : p->audioInChMapA[chIdx];
 
+        if( srcChIdx >= asrc.iBufChCnt )
+          cwLogError(kInvalidArgRC,"Invalid input channel map index:%i >= %i.",srcChIdx,asrc.iBufChCnt);
+        else
           memcpy(a->audioBuf + chIdx*asrc.dspFrameCnt, asrc.iBufArray[ srcChIdx ], asrc.dspFrameCnt * sizeof(sample_t));
       }
       
@@ -198,6 +203,8 @@ namespace cw
     {
       unsigned adst_idx = 0;
 
+      if( !p->mute_fl )
+      {
         while(adst_idx < adst.dspFrameCnt)
         {
           am_audio_t* a;
@@ -221,6 +228,7 @@ namespace cw
           p->curFrameIdx += n;
           adst_idx       += n;
         }
+      }
       
       // TODO: zero unused channels
 
@@ -415,9 +423,16 @@ namespace cw
         else
         {
           if( m.oBufChCnt > 0 )
+          {
             _audio_play(p,m);
           }
         }
+      }
+      else
+      {
+        for(unsigned i=0; i<m.oBufChCnt; ++i)
+          memset( m.oBufArray[i], 0, m.dspFrameCnt * sizeof(sample_t)); 
+      }
       
       return rc;
     }
@@ -522,6 +537,22 @@ bool cw::audio_record_play::record_state( handle_t h )
   return rc;
 }
 
+cw::rc_t cw::audio_record_play::set_mute_state( handle_t h, bool mute_fl )
+{
+  rc_t                 rc = kOkRC;
+  audio_record_play_t* p  = _handleToPtr(h);
+  p->mute_fl = true;
+  return rc;
+}
+
+bool cw::audio_record_play::mute_state( handle_t h )
+{
+  rc_t                 rc = kOkRC;
+  audio_record_play_t* p  = _handleToPtr(h);
+  return p->mute_fl;
+  return rc;
+}
+
 cw::rc_t cw::audio_record_play::save( handle_t h, const char* fn )
 {
   audio_record_play_t* p  = _handleToPtr(h);

cwIoAudioRecordPlay.h

@@ -17,6 +17,8 @@ namespace cw
     rc_t clear( handle_t h );
     rc_t set_record_state( handle_t h, bool record_fl );
     bool record_state( handle_t h );
+    rc_t set_mute_state( handle_t h, bool mute_fl );
+    bool mute_state( handle_t h );
     rc_t save( handle_t h, const char* fn );
     rc_t open( handle_t h, const char* fn );
     double duration_seconds( handle_t h );

cwIoMidiRecordPlay.h

@@ -41,6 +41,9 @@ namespace cw
     rc_t set_record_state( handle_t h, bool record_fl );
     bool record_state( handle_t h );
 
+    rc_t set_mute_state( handle_t h, bool record_fl );
+    bool mute_state( handle_t h );
+
     rc_t set_thru_state( handle_t h, bool record_thru );
     bool thru_state( handle_t h );