Add support for building voices with the swift engine from cepstral.com. Patch FS#7689 by Mario Lang.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14565 a1c6a512-1295-4272-9138-f99709370657

docs/CREDITS

@@ -321,6 +321,7 @@ Daniel Dalton
 Boris Gjenero
 Sylvain Fourmanoit
 Alex Parker
+Mario Lang
 The libmad team
 The wavpack team
 The ffmpeg team

tools/configure

@@ -368,6 +368,14 @@ voiceconfig () {
         DEFAULT_NOISEFLOOR="500"
         DEFAULT_CHOICE="F"
     fi
+    if [ -f "`which swift`" ]; then
+        SWIFT="S(w)ift "
+        SWIFT_OPTS=""
+        DEFAULT_TTS="swift"
+        DEFAULT_TTS_OPTS=$SWIFT_OPTS
+        DEFAULT_NOISEFLOOR="500"
+        DEFAULT_CHOICE="w"
+    fi
     # Allow SAPI if Windows is in use
     if [ -f "`which winver`" ]; then
         SAPI5="(S)API5 "
@@ -378,12 +386,12 @@ voiceconfig () {
         DEFAULT_CHOICE="S"
     fi
 
-    if [ "$FESTIVAL" = "$FLITE" ] && [ "$FLITE" = "$ESPEAK" ] && [ "$ESPEAK" = "$SAPI5" ]; then
+    if [ "$FESTIVAL" = "$FLITE" ] && [ "$FLITE" = "$ESPEAK" ] && [ "$ESPEAK" = "$SAPI5" ] && [ "$SAPI5" = "$SWIFT" ]; then
         echo "You need Festival, eSpeak or Flite in your path, or SAPI5 available to build voice files"
         exit
     fi
 
-    echo "TTS engine to use: ${FLITE}${FESTIVAL}${ESPEAK}${SAPI5}(${DEFAULT_CHOICE})?"
+    echo "TTS engine to use: ${FLITE}${FESTIVAL}${ESPEAK}${SAPI5}${SWIFT}(${DEFAULT_CHOICE})?"
     option=`input`
     case "$option" in
         [Ll])
@@ -406,6 +414,11 @@ voiceconfig () {
         NOISEFLOOR="500"
         TTS_OPTS=$SAPI5_OPTS
         ;;
+	[Ww])
+        TTS_ENGINE="swift"
+        NOISEFLOOR="500"
+        TTS_OPTS=$SWIFT_OPTS
+	;;
         *)
         TTS_ENGINE=$DEFAULT_TTS
         TTS_OPTS=$DEFAULT_TTS_OPTS

tools/voice.pl

@@ -184,6 +184,11 @@ sub voicestring {
         case "sapi5" {
             print({$$tts_object{"stdin"}} sprintf("SPEAK\t%s\t%s\r\n", $output, $string));
         }
+        case "swift" {
+            $cmd = "swift $tts_engine_opts -o $output \"$string\"";
+            print("> $cmd\n") if $verbose;
+            system($cmd);
+        }
     }
 }