vp56: Mark VP6-only optimizations as such.

Most of our VP56 optimizations are VP6-only and will stay that way.
So avoid compiling them for VP5-only builds.

1 files changed, 45 insertions, 0 deletions

diff --git a/libavcodec/x86/vp6dsp_init.c b/libavcodec/x86/vp6dsp_init.c
new file mode 100644
index 0000000000..c4a500b28a
--- /dev/null
+++ b/libavcodec/x86/vp6dsp_init.c
@@ -0,0 +1,45 @@
+/*
+ * VP6 MMX/SSE2 optimizations
+ * Copyright (C) 2009  Sebastien Lucas <sebastien.lucas@gmail.com>
+ * Copyright (C) 2009  Zuxy Meng <zuxy.meng@gmail.com>
+ *
+ * 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 "libavutil/cpu.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/vp56dsp.h"
+
+void ff_vp6_filter_diag4_mmx(uint8_t *dst, uint8_t *src, int stride,
+                             const int16_t *h_weights,const int16_t *v_weights);
+void ff_vp6_filter_diag4_sse2(uint8_t *dst, uint8_t *src, int stride,
+                              const int16_t *h_weights,const int16_t *v_weights);
+
+av_cold void ff_vp6dsp_init_x86(VP56DSPContext* c, enum AVCodecID codec)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+#if ARCH_X86_32
+    if (EXTERNAL_MMX(cpu_flags)) {
+        c->vp6_filter_diag4 = ff_vp6_filter_diag4_mmx;
+    }
+#endif
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        c->vp6_filter_diag4 = ff_vp6_filter_diag4_sse2;
+    }
+}