hevcdsp: ARM NEON optimized deblocking filter

cherry picked from commit 1b9ee47d2f43b0a029a9468233626102eb1473b8

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 48 insertions, 0 deletions

diff --git a/libavcodec/arm/hevcdsp_init_neon.c b/libavcodec/arm/hevcdsp_init_neon.c
new file mode 100644
index 0000000..d63b293
--- /dev/null
+++ b/libavcodec/arm/hevcdsp_init_neon.c
@@ -0,0 +1,48 @@
+/*
+ * 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);
+}