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: 2012-06-02 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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