LCOV - app.info - media/libvorbis/lib/vorbis_analysis.c

LCOV - code coverage report
| Current view: | directory - media/libvorbis/lib - vorbis_analysis.c (source / functions) |  | Found | Hit | Coverage |
| Test: | app.info | Lines: | 20 | 0 | 0.0 %
| Date: | 2012-04-21 | Functions: | 1 | 0 | 0.0 %

           1                 : /********************************************************************
           2                 :  *                                                                  *
           3                 :  * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE.   *
           4                 :  * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
           5                 :  * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
           6                 :  * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
           7                 :  *                                                                  *
           8                 :  * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007             *
           9                 :  * by the Xiph.Org Foundation http://www.xiph.org/                  *
          10                 :  *                                                                  *
          11                 :  ********************************************************************
          12                 :
          13                 :  function: single-block PCM analysis mode dispatch
          14                 :  last mod: $Id: analysis.c 16226 2009-07-08 06:43:49Z xiphmont $
          15                 :
          16                 :  ********************************************************************/
          17                 :
          18                 : #include <stdio.h>
          19                 : #include <string.h>
          20                 : #include <math.h>
          21                 : #include <ogg/ogg.h>
          22                 : #include "vorbis/codec.h"
          23                 : #include "codec_internal.h"
          24                 : #include "registry.h"
          25                 : #include "scales.h"
          26                 : #include "os.h"
          27                 : #include "misc.h"
          28                 :
          29                 : /* decides between modes, dispatches to the appropriate mapping. */
          30               0 : int vorbis_analysis(vorbis_block *vb, ogg_packet *op){
          31                 :   int ret,i;
          32               0 :   vorbis_block_internal *vbi=vb->internal;
          33                 :
          34               0 :   vb->glue_bits=0;
          35               0 :   vb->time_bits=0;
          36               0 :   vb->floor_bits=0;
          37               0 :   vb->res_bits=0;
          38                 :
          39                 :   /* first things first.  Make sure encode is ready */
          40               0 :   for(i=0;i<PACKETBLOBS;i++)
          41               0 :     oggpack_reset(vbi->packetblob[i]);
          42                 :
          43                 :   /* we only have one mapping type (0), and we let the mapping code
          44                 :      itself figure out what soft mode to use.  This allows easier
          45                 :      bitrate management */
          46                 :
          47               0 :   if((ret=_mapping_P[0]->forward(vb)))
          48               0 :     return(ret);
          49                 :
          50               0 :   if(op){
          51               0 :     if(vorbis_bitrate_managed(vb))
          52                 :       /* The app is using a bitmanaged mode... but not using the
          53                 :          bitrate management interface. */
          54               0 :       return(OV_EINVAL);
          55                 :
          56               0 :     op->packet=oggpack_get_buffer(&vb->opb);
          57               0 :     op->bytes=oggpack_bytes(&vb->opb);
          58               0 :     op->b_o_s=0;
          59               0 :     op->e_o_s=vb->eofflag;
          60               0 :     op->granulepos=vb->granulepos;
          61               0 :     op->packetno=vb->sequence; /* for sake of completeness */
          62                 :   }
          63               0 :   return(0);
          64                 : }
          65                 :
          66                 : #ifdef ANALYSIS
          67                 : int analysis_noisy=1;
          68                 :
          69                 : /* there was no great place to put this.... */
          70                 : void _analysis_output_always(char *base,int i,float *v,int n,int bark,int dB,ogg_int64_t off){
          71                 :   int j;
          72                 :   FILE *of;
          73                 :   char buffer[80];
          74                 :
          75                 :   sprintf(buffer,"%s_%d.m",base,i);
          76                 :   of=fopen(buffer,"w");
          77                 :
          78                 :   if(!of)perror("failed to open data dump file");
          79                 :
          80                 :   for(j=0;j<n;j++){
          81                 :     if(bark){
          82                 :       float b=toBARK((4000.f*j/n)+.25);
          83                 :       fprintf(of,"%f ",b);
          84                 :     }else
          85                 :       if(off!=0)
          86                 :         fprintf(of,"%f ",(double)(j+off)/8000.);
          87                 :       else
          88                 :         fprintf(of,"%f ",(double)j);
          89                 :
          90                 :     if(dB){
          91                 :       float val;
          92                 :       if(v[j]==0.)
          93                 :         val=-140.;
          94                 :       else
          95                 :         val=todB(v+j);
          96                 :       fprintf(of,"%f\n",val);
          97                 :     }else{
          98                 :       fprintf(of,"%f\n",v[j]);
          99                 :     }
         100                 :   }
         101                 :   fclose(of);
         102                 : }
         103                 :
         104                 : void _analysis_output(char *base,int i,float *v,int n,int bark,int dB,
         105                 :                       ogg_int64_t off){
         106                 :   if(analysis_noisy)_analysis_output_always(base,i,v,n,bark,dB,off);
         107                 : }
         108                 :
         109                 : #endif
         110                 :
         111                 :
         112                 :
         113                 :
         114                 :
         115                 :
         116                 :
         117                 :
         118                 :
         119                 :
         120                 :

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