hevcdsp: ARM NEON optimized deblocking filter

cherry picked from commit 1b9ee47d2f43b0a029a9468233626102eb1473b8
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/arm/Makefile

@@ -132,6 +132,8 @@ NEON-OBJS-$(CONFIG_AAC_DECODER)        += arm/aacpsdsp_neon.o           \
 NEON-OBJS-$(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
 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

+/*
+ * Copyright (c) 2014 Seppo Tomperi <seppo.tomperi@vtt.fi>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/arm/cpu.h"
+#include "libavcodec/hevcdsp.h"
+
+void ff_hevc_v_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_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);
+
+static av_cold void hevcdsp_init_neon(HEVCDSPContext *c, const int bit_depth)
+{
+#if HAVE_NEON
+    if (bit_depth == 8) {
+        c->hevc_v_loop_filter_luma     = ff_hevc_v_loop_filter_luma_neon;
+        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;
+    }
+#endif // HAVE_NEON
+}
+
+void ff_hevcdsp_init_arm(HEVCDSPContext *c, const int bit_depth)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags))
+        hevcdsp_init_neon(c, bit_depth);
+}

libavcodec/hevcdsp.c

@@ -259,4 +259,6 @@ int i = 0;
 
     if (ARCH_X86)
         ff_hevc_dsp_init_x86(hevcdsp, bit_depth);
+    if (ARCH_ARM)
+        ff_hevcdsp_init_arm(hevcdsp, bit_depth);
 }

libavcodec/hevcdsp.h

@@ -128,5 +128,5 @@ extern const int8_t ff_hevc_epel_filters[7][4];
 extern const int8_t ff_hevc_qpel_filters[3][16];
 
 void ff_hevc_dsp_init_x86(HEVCDSPContext *c, const int bit_depth);
-
+void ff_hevcdsp_init_arm(HEVCDSPContext *c, const int bit_depth);
 #endif /* AVCODEC_HEVCDSP_H */