#endif
-typedef struct AVResampleContext{
+typedef struct ResampleContext {
const AVClass *av_class;
FELEM *filter_bank;
int filter_length;
int phase_mask;
int linear;
double factor;
-}AVResampleContext;
+} ResampleContext;
/**
* 0th order modified bessel function of the first kind.
return 0;
}
-AVResampleContext *swr_resample_init(AVResampleContext *c, int out_rate, int in_rate, int filter_size, int phase_shift, int linear, double cutoff){
+ResampleContext *swri_resample_init(ResampleContext *c, int out_rate, int in_rate, int filter_size, int phase_shift, int linear, double cutoff){
double factor= FFMIN(out_rate * cutoff / in_rate, 1.0);
int phase_count= 1<<phase_shift;
if (!c || c->phase_shift != phase_shift || c->linear!=linear || c->factor != factor
|| c->filter_length != FFMAX((int)ceil(filter_size/factor), 1)) {
- c = av_mallocz(sizeof(AVResampleContext));
+ c = av_mallocz(sizeof(*c));
if (!c)
return NULL;
return NULL;
}
-void swr_resample_free(AVResampleContext **c){
+void swri_resample_free(ResampleContext **c){
if(!*c)
return;
av_freep(&(*c)->filter_bank);
}
void swr_compensate(struct SwrContext *s, int sample_delta, int compensation_distance){
- AVResampleContext *c= s->resample;
+ ResampleContext *c= s->resample;
// sample_delta += (c->ideal_dst_incr - c->dst_incr)*(int64_t)c->compensation_distance / c->ideal_dst_incr;
c->compensation_distance= compensation_distance;
c->dst_incr = c->ideal_dst_incr - c->ideal_dst_incr * (int64_t)sample_delta / compensation_distance;
}
-int swr_resample(AVResampleContext *c, short *dst, const short *src, int *consumed, int src_size, int dst_size, int update_ctx){
+int swri_resample(ResampleContext *c, int16_t *dst, const int16_t *src, int *consumed, int src_size, int dst_size, int update_ctx){
int dst_index, i;
int index= c->index;
int frac= c->frac;
return dst_index;
}
-int swr_multiple_resample(AVResampleContext *c, AudioData *dst, int dst_size, AudioData *src, int src_size, int *consumed){
+int swri_multiple_resample(ResampleContext *c, AudioData *dst, int dst_size, AudioData *src, int src_size, int *consumed){
int i, ret= -1;
for(i=0; i<dst->ch_count; i++){
- ret= swr_resample(c, (short*)dst->ch[i], (const short*)src->ch[i], consumed, src_size, dst_size, i+1==dst->ch_count);
+ ret= swri_resample(c, (int16_t*)dst->ch[i], (const int16_t*)src->ch[i], consumed, src_size, dst_size, i+1==dst->ch_count);
}
return ret;