vf_interlace: Add SIMD for lowpass filter

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

1 files changed, 47 insertions, 0 deletions

diff --git a/libavfilter/x86/vf_interlace_init.c b/libavfilter/x86/vf_interlace_init.c
new file mode 100644
index 0000000000..231ab85a1c
--- /dev/null
+++ b/libavfilter/x86/vf_interlace_init.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2014 Kieran Kunhya <kierank@obe.tv>
+ *
+ * This file is part of Libav.
+ *
+  * Libav is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Libav 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with Libav; 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/cpu.h"
+#include "libavutil/internal.h"
+#include "libavutil/mem.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+
+#include "libavfilter/interlace.h"
+
+void ff_lowpass_line_sse2(uint8_t *dstp, ptrdiff_t linesize,
+                          const uint8_t *srcp,
+                          const uint8_t *srcp_above,
+                          const uint8_t *srcp_below);
+void ff_lowpass_line_avx (uint8_t *dstp, ptrdiff_t linesize,
+                          const uint8_t *srcp,
+                          const uint8_t *srcp_above,
+                          const uint8_t *srcp_below);
+
+av_cold void ff_interlace_init_x86(InterlaceContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE2(cpu_flags))
+        s->lowpass_line = ff_lowpass_line_sse2;
+    if (EXTERNAL_AVX(cpu_flags))
+        s->lowpass_line = ff_lowpass_line_avx;
+}