hevcdsp: ARM NEON optimized transforms

cherry picked from commit b153f55935969c794de4640f8d34e01c58e027ae
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/arm/Makefile

@@ -133,7 +133,8 @@ NEON-OBJS-$(CONFIG_LLAUDDSP)           += arm/lossless_audiodsp_neon.o
 NEON-OBJS-$(CONFIG_DCA_DECODER)        += arm/dcadsp_neon.o             \
                                           arm/synth_filter_neon.o
 NEON-OBJS-$(CONFIG_HEVC_DECODER)       += arm/hevcdsp_init_neon.o       \
-                                          arm/hevcdsp_deblock_neon.o
+                                          arm/hevcdsp_deblock_neon.o    \
+                                          arm/hevcdsp_idct_neon.o
 NEON-OBJS-$(CONFIG_RV30_DECODER)       += arm/rv34dsp_neon.o
 NEON-OBJS-$(CONFIG_RV40_DECODER)       += arm/rv34dsp_neon.o            \
                                           arm/rv40dsp_neon.o

libavcodec/arm/hevcdsp_init_neon.c

@@ -26,6 +26,21 @@ void ff_hevc_v_loop_filter_luma_neon(uint8_t *_pix, ptrdiff_t _stride, int _beta
 void ff_hevc_h_loop_filter_luma_neon(uint8_t *_pix, ptrdiff_t _stride, int _beta, int *_tc, uint8_t *_no_p, uint8_t *_no_q);
 void ff_hevc_v_loop_filter_chroma_neon(uint8_t *_pix, ptrdiff_t _stride, int *_tc, uint8_t *_no_p, uint8_t *_no_q);
 void ff_hevc_h_loop_filter_chroma_neon(uint8_t *_pix, ptrdiff_t _stride, int *_tc, uint8_t *_no_p, uint8_t *_no_q);
+void ff_hevc_transform_4x4_neon_8(int16_t *coeffs, int col_limit);
+void ff_hevc_transform_8x8_neon_8(int16_t *coeffs, int col_limit);
+void ff_hevc_idct_4x4_dc_neon_8(int16_t *coeffs);
+void ff_hevc_idct_8x8_dc_neon_8(int16_t *coeffs);
+void ff_hevc_idct_16x16_dc_neon_8(int16_t *coeffs);
+void ff_hevc_idct_32x32_dc_neon_8(int16_t *coeffs);
+void ff_hevc_transform_luma_4x4_neon_8(int16_t *coeffs);
+void ff_hevc_transform_add_4x4_neon_8(uint8_t *_dst, int16_t *coeffs,
+                                      ptrdiff_t stride);
+void ff_hevc_transform_add_8x8_neon_8(uint8_t *_dst, int16_t *coeffs,
+                                      ptrdiff_t stride);
+void ff_hevc_transform_add_16x16_neon_8(uint8_t *_dst, int16_t *coeffs,
+                                      ptrdiff_t stride);
+void ff_hevc_transform_add_32x32_neon_8(uint8_t *_dst, int16_t *coeffs,
+                                      ptrdiff_t stride);
 
 static av_cold void hevcdsp_init_neon(HEVCDSPContext *c, const int bit_depth)
 {
@@ -35,6 +50,17 @@ static av_cold void hevcdsp_init_neon(HEVCDSPContext *c, const int bit_depth)
         c->hevc_h_loop_filter_luma     = ff_hevc_h_loop_filter_luma_neon;
         c->hevc_v_loop_filter_chroma   = ff_hevc_v_loop_filter_chroma_neon;
         c->hevc_h_loop_filter_chroma   = ff_hevc_h_loop_filter_chroma_neon;
+        c->idct[0]                     = ff_hevc_transform_4x4_neon_8;
+        c->idct[1]                     = ff_hevc_transform_8x8_neon_8;
+        c->idct_dc[0]                  = ff_hevc_idct_4x4_dc_neon_8;
+        c->idct_dc[1]                  = ff_hevc_idct_8x8_dc_neon_8;
+        c->idct_dc[2]                  = ff_hevc_idct_16x16_dc_neon_8;
+        c->idct_dc[3]                  = ff_hevc_idct_32x32_dc_neon_8;
+        c->transform_add[0]            = ff_hevc_transform_add_4x4_neon_8;
+        c->transform_add[1]            = ff_hevc_transform_add_8x8_neon_8;
+        c->transform_add[2]            = ff_hevc_transform_add_16x16_neon_8;
+        c->transform_add[3]            = ff_hevc_transform_add_32x32_neon_8;
+        c->idct_4x4_luma               = ff_hevc_transform_luma_4x4_neon_8;
     }
 #endif // HAVE_NEON
 }