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af_scaletempo: code cleanup

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Make internal functions static and remove leading '_' from some
function names. Cast pointers to compatible 8-bit pointer types
instead of ints when calculating their difference.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24927 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
uau 2007-11-01 06:52:47 +00:00
parent e803711bbd
commit de034ce87f
1 changed files with 17 additions and 10 deletions
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27
libaf/af_scaletempo.c
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@ -79,7 +79,8 @@ typedef struct af_scaletempo_s
short speed_pitch;
} af_scaletempo_t;
int fill_queue(struct af_instance_s* af, af_data_t* data, int offset) {
static int fill_queue(struct af_instance_s* af, af_data_t* data, int offset)
{
af_scaletempo_t* s = af->setup;
int bytes_in = data->len - offset;
int offset_unchanged = offset;
@ -115,7 +116,8 @@ int fill_queue(struct af_instance_s* af, af_data_t* data, int offset) {
return offset - offset_unchanged;
}
int _best_overlap_offset_float(af_scaletempo_t* s) {
static int best_overlap_offset_float(af_scaletempo_t* s)
{
float *pw, *po, *ppc, *search_start;
float best_corr = INT_MIN;
int best_off = 0;
@ -146,7 +148,8 @@ int _best_overlap_offset_float(af_scaletempo_t* s) {
return best_off * 4 * s->num_channels;
}
int _best_overlap_offset_s16(af_scaletempo_t* s) {
static int best_overlap_offset_s16(af_scaletempo_t* s)
{
int32_t *pw, *ppc;
int16_t *po, *search_start;
int32_t best_corr = INT_MIN;
@ -178,7 +181,9 @@ int _best_overlap_offset_s16(af_scaletempo_t* s) {
return best_off * 2 * s->num_channels;
}
void _output_overlap_float(af_scaletempo_t* s, int8_t* buf_out, int bytes_off) {
static void output_overlap_float(af_scaletempo_t* s, int8_t* buf_out,
int bytes_off)
{
float* pout = (float*)buf_out;
float* pb = (float*)s->table_blend;
float* po = (float*)s->buf_overlap;
@ -188,7 +193,9 @@ void _output_overlap_float(af_scaletempo_t* s, int8_t* buf_out, int bytes_off) {
*pout++ = *po - *pb++ * ( *po - *pin++ ); po++;
}
}
void _output_overlap_s16(af_scaletempo_t* s, int8_t* buf_out, int bytes_off) {
static void output_overlap_s16(af_scaletempo_t* s, int8_t* buf_out,
int bytes_off)
{
int16_t* pout = (int16_t*)buf_out;
int32_t* pb = (int32_t*)s->table_blend;
int16_t* po = (int16_t*)s->buf_overlap;
@ -255,7 +262,7 @@ static af_data_t* play(struct af_instance_s* af, af_data_t* data)
}
data->audio = af->data->audio;
data->len = (int)pout - (int)af->data->audio;
data->len = pout - (int8_t *)af->data->audio;
return data;
}
@ -330,7 +337,7 @@ static int control(struct af_instance_s* af, int cmd, void* arg)
}
blend += 65536; // 2^16
}
s->output_overlap = _output_overlap_s16;
s->output_overlap = output_overlap_s16;
} else {
float* pb = (float*)s->table_blend;
for (i=0; i<frames_overlap; i++) {
@ -339,7 +346,7 @@ static int control(struct af_instance_s* af, int cmd, void* arg)
*pb++ = v;
}
}
s->output_overlap = _output_overlap_float;
s->output_overlap = output_overlap_float;
}
}
@ -365,7 +372,7 @@ static int control(struct af_instance_s* af, int cmd, void* arg)
}
}
s->shift_corr = av_log2( 2*(s->samples_overlap - nch) - 1 );
s->best_overlap_offset = _best_overlap_offset_s16;
s->best_overlap_offset = best_overlap_offset_s16;
} else {
float* pw;
s->buf_pre_corr = realloc(s->buf_pre_corr, s->bytes_overlap);
@ -381,7 +388,7 @@ static int control(struct af_instance_s* af, int cmd, void* arg)
*pw++ = v;
}
}
s->best_overlap_offset = _best_overlap_offset_float;
s->best_overlap_offset = best_overlap_offset_float;
}
}