Browse Source

Minor cleanup.

tags/non-daw-v1.1.0
Jonathan Moore Liles 17 years ago
parent
commit
6abd18c4ca
1 changed files with 46 additions and 63 deletions
  1. +46
    -63
      Engine/Peaks.C

+ 46
- 63
Engine/Peaks.C View File

@@ -55,26 +55,26 @@ Peaks::fill_buffer ( float fpp, int s, int e ) const
}


inline void
Peaks::downsample ( Peak *peaks, int s, int e, float *mhi, float *mlo ) const
{
*mhi = 0;
*mlo = 0;
if ( e > _len )
e = _len;
for ( int j = s; j < e; j++ )
{
const float lo = peaks[ j ].min;
const float hi = peaks[ j ].max;
if ( hi > *mhi )
*mhi = hi;
if ( lo < *mlo )
*mlo = lo;
}
}
/* inline void */
/* Peaks::downsample ( Peak *peaks, int s, int e, float *mhi, float *mlo ) const */
/* { */
/* *mhi = 0; */
/* *mlo = 0; */
/* if ( e > _len ) */
/* e = _len; */
/* for ( int j = s; j < e; j++ ) */
/* { */
/* const float lo = peaks[ j ].min; */
/* const float hi = peaks[ j ].max; */
/* if ( hi > *mhi ) */
/* *mhi = hi; */
/* if ( lo < *mlo ) */
/* *mlo = lo; */
/* } */
/* } */

int
Peaks::read_peakfile_peaks ( Peak *peaks, nframes_t s, int npeaks, int chunksize ) const
@@ -227,39 +227,22 @@ Peaks::read_peaks ( int s, int e, int npeaks, int chunksize ) const
}

/** Return the peak for the range of samples */
Peak &
Peaks::peak ( nframes_t start, nframes_t end ) const
{
/* Is there a better way to return this? */
static Peak p;

start = (start - _peakbuf.offset) / _peakbuf.buf->chunksize;
end = (end - _peakbuf.offset) / _peakbuf.buf->chunksize;

if ( end > _peakbuf.len )
end = _peakbuf.len;

downsample( _peakbuf.buf->data, start, end, &p.max, &p.min );

return p;
}

/* virtual array. Index is a Pixel value, and it returns the
* (resampled) peaks for that pixel based on the current timeline
* zoom. */

/* Peak & */
/* Peaks::operator[] ( int X ) const */
/* Peaks::peak ( nframes_t start, nframes_t end ) const */
/* { */
/* /\* Is there a better way to return this? *\/ */
/* static Peak p; */

/* Peak p; */
/* p.min = 0; */
/* p.max = 0; */
/* return p; */
/* // return peak( timeline->x_to_ts( X ), timeline->x_to_ts( X + 1 ) ); */
/* start = (start - _peakbuf.offset) / _peakbuf.buf->chunksize; */
/* end = (end - _peakbuf.offset) / _peakbuf.buf->chunksize; */

/* } */
/* if ( end > _peakbuf.len ) */
/* end = _peakbuf.len; */

/* downsample( _peakbuf.buf->data, start, end, &p.max, &p.min ); */

/* return p; */
/* } */

const char *
Peaks::peakname ( const char *filename ) const
@@ -365,24 +348,24 @@ Peaks::make_peaks ( int chunksize )
/** return normalization factor for range of samples from /start/ to
/end/ (uses known peak data if possible */

float
Peaks::normalization_factor( float fpp, nframes_t start, nframes_t end ) const
{
float s;
/* float */
/* Peaks::normalization_factor( float fpp, nframes_t start, nframes_t end ) const */
/* { */
/* float s; */

// fill_buffer( fpp, start, end );
/* // fill_buffer( fpp, start, end ); */

/* if ( end - start < _peaks->chunksize * 4 ) */
/* fill_buffer( _clip->length() / 4, start, end ); */
/* else */
/* fill_buffer( _clip->length(), start, end ); */
/* /\* if ( end - start < _peaks->chunksize * 4 ) *\/ */
/* /\* fill_buffer( _clip->length() / 4, start, end ); *\/ */
/* /\* else *\/ */
/* /\* fill_buffer( _clip->length(), start, end ); *\/ */

Peak p = peak( start, end );
/* Peak p = peak( start, end ); */

s = 1.0f / fabs( p.max );
/* s = 1.0f / fabs( p.max ); */

if ( s * p.min < -1.0 )
s = 1.0f / fabs( p.min );
/* if ( s * p.min < -1.0 ) */
/* s = 1.0f / fabs( p.min ); */

return s;
}
/* return s; */
/* } */

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