void ff_ac3_exponent_min_neon(uint8_t *exp, int num_reuse_blocks, int nb_coefs);
int ff_ac3_max_msb_abs_int16_neon(const int16_t *src, int len);
+void ff_ac3_lshift_int16_neon(int16_t *src, unsigned len, unsigned shift);
+void ff_ac3_rshift_int32_neon(int32_t *src, unsigned len, unsigned shift);
av_cold void ff_ac3dsp_init_arm(AC3DSPContext *c, int bit_exact)
{
if (HAVE_NEON) {
c->ac3_exponent_min = ff_ac3_exponent_min_neon;
c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_neon;
+ c->ac3_lshift_int16 = ff_ac3_lshift_int16_neon;
+ c->ac3_rshift_int32 = ff_ac3_rshift_int32_neon;
}
}
bgt 1b
pop {pc}
endfunc
+
+function ff_ac3_lshift_int16_neon, export=1
+ vdup.16 q0, r2
+1: vld1.16 {q1}, [r0,:128]
+ vshl.s16 q1, q1, q0
+ vst1.16 {q1}, [r0,:128]!
+ subs r1, r1, #8
+ bgt 1b
+ bx lr
+endfunc
+
+function ff_ac3_rshift_int32_neon, export=1
+ rsb r2, r2, #0
+ vdup.32 q0, r2
+1: vld1.32 {q1}, [r0,:128]
+ vshl.s32 q1, q1, q0
+ vst1.32 {q1}, [r0,:128]!
+ subs r1, r1, #4
+ bgt 1b
+ bx lr
+endfunc