#define DBL_TO_FELEM(d, v) d = av_clip_int16(lrint(v * (1 << 15)))
#endif
-static void SET_TYPE(resample_one)(ResampleContext *c, int no_filter,
- void *dst0, int dst_index, const void *src0,
- int src_size, int index, int frac)
+static void SET_TYPE(resample_nearest)(void *dst0, int dst_index, const void *src0, unsigned int index)
{
FELEM *dst = dst0;
const FELEM *src = src0;
+ dst[dst_index] = src[index];
+}
- if (no_filter) {
- dst[dst_index] = src[index];
- } else {
- int i;
- int sample_index = index >> c->phase_shift;
- FELEM2 val = 0;
- FELEM *filter = ((FELEM *)c->filter_bank) +
- c->filter_length * (index & c->phase_mask);
-
- if (sample_index < 0) {
- for (i = 0; i < c->filter_length; i++)
- val += src[FFABS(sample_index + i) % src_size] *
- (FELEM2)filter[i];
- } else if (c->linear) {
- FELEM2 v2 = 0;
- for (i = 0; i < c->filter_length; i++) {
- val += src[abs(sample_index + i)] * (FELEM2)filter[i];
- v2 += src[abs(sample_index + i)] * (FELEM2)filter[i + c->filter_length];
- }
- val += (v2 - val) * (FELEML)frac / c->src_incr;
- } else {
- for (i = 0; i < c->filter_length; i++)
- val += src[sample_index + i] * (FELEM2)filter[i];
- }
+static void SET_TYPE(resample_linear)(ResampleContext *c, void *dst0, int dst_index,
+ const void *src0, unsigned int index, int frac)
+{
+ FELEM *dst = dst0;
+ const FELEM *src = src0;
+ int i;
+ unsigned int sample_index = index >> c->phase_shift;
+ FELEM2 val = 0;
+ FELEM *filter = ((FELEM *)c->filter_bank) +
+ c->filter_length * (index & c->phase_mask);
+ FELEM2 v2 = 0;
- OUT(dst[dst_index], val);
+ for (i = 0; i < c->filter_length; i++) {
+ val += src[sample_index + i] * (FELEM2)filter[i];
+ v2 += src[sample_index + i] * (FELEM2)filter[i + c->filter_length];
}
+ val += (v2 - val) * (FELEML)frac / c->src_incr;
+
+ OUT(dst[dst_index], val);
+}
+
+static void SET_TYPE(resample_one)(ResampleContext *c,
+ void *dst0, int dst_index, const void *src0,
+ unsigned int index, int frac)
+{
+ FELEM *dst = dst0;
+ const FELEM *src = src0;
+ int i;
+ unsigned int sample_index = index >> c->phase_shift;
+ FELEM2 val = 0;
+ FELEM *filter = ((FELEM *)c->filter_bank) +
+ c->filter_length * (index & c->phase_mask);
+
+ for (i = 0; i < c->filter_length; i++)
+ val += src[sample_index + i] * (FELEM2)filter[i];
+
+ OUT(dst[dst_index], val);
}
static void SET_TYPE(set_filter)(void *filter0, double *tab, int phase,