x86: Split DCT and FFT initialization into separate files

1 files changed, 39 insertions, 0 deletions

diff --git a/libavcodec/x86/dct_init.c b/libavcodec/x86/dct_init.c
new file mode 100644
index 0000000000..7bda5e81b6
--- /dev/null
+++ b/libavcodec/x86/dct_init.c
@@ -0,0 +1,39 @@
+/*
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser 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 "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/dct.h"
+
+void ff_dct32_float_sse(FFTSample *out, const FFTSample *in);
+void ff_dct32_float_sse2(FFTSample *out, const FFTSample *in);
+void ff_dct32_float_avx(FFTSample *out, const FFTSample *in);
+
+av_cold void ff_dct_init_x86(DCTContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE(cpu_flags))
+        s->dct32 = ff_dct32_float_sse;
+    if (EXTERNAL_SSE2(cpu_flags))
+        s->dct32 = ff_dct32_float_sse2;
+    if (EXTERNAL_AVX(cpu_flags))
+        s->dct32 = ff_dct32_float_avx;
+}