#include "avcodec.h"
#include "ac3.h"
#include "ac3dsp.h"
+#include "mathops.h"
static void ac3_exponent_min_c(uint8_t *exp, int num_reuse_blocks, int nb_coefs)
{
}
}
+static void ac3_sum_square_butterfly_int32_c(int64_t sum[4],
+ const int32_t *coef0,
+ const int32_t *coef1,
+ int len)
+{
+ int i;
+
+ sum[0] = sum[1] = sum[2] = sum[3] = 0;
+
+ for (i = 0; i < len; i++) {
+ int lt = coef0[i];
+ int rt = coef1[i];
+ int md = lt + rt;
+ int sd = lt - rt;
+ MAC64(sum[0], lt, lt);
+ MAC64(sum[1], rt, rt);
+ MAC64(sum[2], md, md);
+ MAC64(sum[3], sd, sd);
+ }
+}
+
+static void ac3_sum_square_butterfly_float_c(float sum[4],
+ const float *coef0,
+ const float *coef1,
+ int len)
+{
+ int i;
+
+ sum[0] = sum[1] = sum[2] = sum[3] = 0;
+
+ for (i = 0; i < len; i++) {
+ float lt = coef0[i];
+ float rt = coef1[i];
+ float md = lt + rt;
+ float sd = lt - rt;
+ sum[0] += lt * lt;
+ sum[1] += rt * rt;
+ sum[2] += md * md;
+ sum[3] += sd * sd;
+ }
+}
+
av_cold void ff_ac3dsp_init(AC3DSPContext *c, int bit_exact)
{
c->ac3_exponent_min = ac3_exponent_min_c;
c->update_bap_counts = ac3_update_bap_counts_c;
c->compute_mantissa_size = ac3_compute_mantissa_size_c;
c->extract_exponents = ac3_extract_exponents_c;
+ c->sum_square_butterfly_int32 = ac3_sum_square_butterfly_int32_c;
+ c->sum_square_butterfly_float = ac3_sum_square_butterfly_float_c;
if (ARCH_ARM)
ff_ac3dsp_init_arm(c, bit_exact);