@@ -27,6 +27,7 @@ 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);

+void ff_float_to_fixed24_neon(int32_t *dst, const float *src, unsigned int len);

 av_cold void ff_ac3dsp_init_arm(AC3DSPContext *c, int bit_exact)

 {

@@ -35,5 +36,6 @@ av_cold void ff_ac3dsp_init_arm(AC3DSPContext *c, int bit_exact)

         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;

+        c->float_to_fixed24      = ff_float_to_fixed24_neon;

     }

 }

@@ -78,3 +78,17 @@ function ff_ac3_rshift_int32_neon, export=1

         bgt             1b

         bx              lr

 endfunc

+

+function ff_float_to_fixed24_neon, export=1

+1:      vld1.32         {q0-q1},  [r1,:128]!

+        vcvt.s32.f32    q0,  q0,  #24

+        vld1.32         {q2-q3},  [r1,:128]!

+        vcvt.s32.f32    q1,  q1,  #24

+        vcvt.s32.f32    q2,  q2,  #24

+        vst1.32         {q0-q1},  [r0,:128]!

+        vcvt.s32.f32    q3,  q3,  #24

+        vst1.32         {q2-q3},  [r0,:128]!

+        subs            r2,  r2,  #16

+        bgt             1b

+        bx              lr

+endfunc