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      1 /*---------------------------------------------------------------------------*
      2  *  utt_data.c  *
      3  *                                                                           *
      4  *  Copyright 2007, 2008 Nuance Communciations, Inc.                               *
      5  *                                                                           *
      6  *  Licensed under the Apache License, Version 2.0 (the 'License');          *
      7  *  you may not use this file except in compliance with the License.         *
      8  *                                                                           *
      9  *  You may obtain a copy of the License at                                  *
     10  *      http://www.apache.org/licenses/LICENSE-2.0                           *
     11  *                                                                           *
     12  *  Unless required by applicable law or agreed to in writing, software      *
     13  *  distributed under the License is distributed on an 'AS IS' BASIS,        *
     14  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
     15  *  See the License for the specific language governing permissions and      *
     16  *  limitations under the License.                                           *
     17  *                                                                           *
     18  *---------------------------------------------------------------------------*/
     19 
     20 #include <stdlib.h>
     21 #include <string.h>
     22 #ifndef _RTT
     23 #include <stdio.h>
     24 #endif
     25 
     26 #ifdef unix
     27 #include <unistd.h>
     28 #endif
     29 #include <assert.h>
     30 
     31 
     32 #include "simapi.h"
     33 #include "portable.h"
     34 #include "../clib/fpi_tgt.inl"
     35 
     36 static const char utt_data[] = "$Id: utt_data.c,v 1.8.6.6 2007/10/15 18:06:24 dahan Exp $";
     37 
     38 
     39 int CA_SeekStartOfUtterance(CA_Utterance *hUtt)
     40 {
     41   TRY_CA_EXCEPT
     42   int gap = 0;
     43 
     44   ASSERT(hUtt);
     45 
     46   if (utterance_started(&hUtt->data))
     47   {
     48     if ((gap = getBlockGap(hUtt->data.gen_utt.frame)) > 0)
     49       (void) setRECframePtr(hUtt->data.gen_utt.frame, gap, 1);
     50     if (hUtt->data.gen_utt.frame->holdOffPeriod > 0)
     51       setRECframePtr(hUtt->data.gen_utt.frame, -MIN(hUtt->data.gen_utt.frame->holdOffPeriod, getFrameGap(hUtt->data.gen_utt.frame)), 1);
     52     while (!(rec_frame_voicing_status(hUtt->data.gen_utt.frame) & VOICE_BIT))
     53     {
     54       incRECframePtr(hUtt->data.gen_utt.frame);
     55       if (getFrameGap(hUtt->data.gen_utt.frame) == 0)
     56         break;
     57     }
     58     setRECframePtr(hUtt->data.gen_utt.frame, MIN(hUtt->data.gen_utt.start_windback, getBlockGap(hUtt->data.gen_utt.frame)), 1);
     59 #ifdef SREC_ENGINE_VERBOSE_LOGGING
     60     PLogMessage("L:  Frame start rewound to %d (%d, %d)", hUtt->data.gen_utt.frame->pullTime,
     61                 hUtt->data.gen_utt.start_windback,
     62                 getBlockGap(hUtt->data.gen_utt.frame));
     63 #endif
     64     hUtt->data.gen_utt.last_push = NULL;
     65     return hUtt->data.gen_utt.start_windback;
     66   }
     67   else
     68     return 0;
     69 
     70   BEG_CATCH_CA_EXCEPT
     71   END_CATCH_CA_EXCEPT(hUtt)
     72 }
     73 
     74 int CA_GetUnprocessedFramesInUtterance(CA_Utterance *hUtt)
     75 {
     76   TRY_CA_EXCEPT
     77   ASSERT(hUtt);
     78   return (getFrameGap(hUtt->data.gen_utt.frame));
     79 
     80   BEG_CATCH_CA_EXCEPT
     81   END_CATCH_CA_EXCEPT(hUtt)
     82 }
     83 
     84 
     85