adding ffmpeg specific version

1 files changed, 105 insertions, 0 deletions

diff --git a/ffmpeg1/libavcodec/arm/dca.h b/ffmpeg1/libavcodec/arm/dca.h
new file mode 100644
index 0000000..2cfd18a
--- /dev/null
+++ b/ffmpeg1/libavcodec/arm/dca.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2011 Mans Rullgard <mans@mansr.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
+ */
+
+#ifndef AVCODEC_ARM_DCA_H
+#define AVCODEC_ARM_DCA_H
+
+#include <stdint.h>
+
+#include "config.h"
+#include "libavcodec/mathops.h"
+
+#if HAVE_ARMV6_INLINE && AV_GCC_VERSION_AT_LEAST(4,4) && !CONFIG_THUMB
+
+#define decode_blockcodes decode_blockcodes
+static inline int decode_blockcodes(int code1, int code2, int levels,
+                                    int *values)
+{
+    int v0, v1, v2, v3, v4, v5;
+
+    __asm__ ("smmul   %8,  %14, %18           \n"
+             "smmul   %11, %15, %18           \n"
+             "smlabb  %14, %8,  %17, %14      \n"
+             "smlabb  %15, %11, %17, %15      \n"
+             "smmul   %9,  %8,  %18           \n"
+             "smmul   %12, %11, %18           \n"
+             "sub     %14, %14, %16, lsr #1   \n"
+             "sub     %15, %15, %16, lsr #1   \n"
+             "smlabb  %8,  %9,  %17, %8       \n"
+             "smlabb  %11, %12, %17, %11      \n"
+             "smmul   %10, %9,  %18           \n"
+             "smmul   %13, %12, %18           \n"
+             "str     %14, %0                 \n"
+             "str     %15, %4                 \n"
+             "sub     %8,  %8,  %16, lsr #1   \n"
+             "sub     %11, %11, %16, lsr #1   \n"
+             "smlabb  %9,  %10, %17, %9       \n"
+             "smlabb  %12, %13, %17, %12      \n"
+             "smmul   %14, %10, %18           \n"
+             "smmul   %15, %13, %18           \n"
+             "str     %8,  %1                 \n"
+             "str     %11, %5                 \n"
+             "sub     %9,  %9,  %16, lsr #1   \n"
+             "sub     %12, %12, %16, lsr #1   \n"
+             "smlabb  %10, %14, %17, %10      \n"
+             "smlabb  %13, %15, %17, %13      \n"
+             "str     %9,  %2                 \n"
+             "str     %12, %6                 \n"
+             "sub     %10, %10, %16, lsr #1   \n"
+             "sub     %13, %13, %16, lsr #1   \n"
+             "str     %10, %3                 \n"
+             "str     %13, %7                 \n"
+             : "=m"(values[0]), "=m"(values[1]),
+               "=m"(values[2]), "=m"(values[3]),
+               "=m"(values[4]), "=m"(values[5]),
+               "=m"(values[6]), "=m"(values[7]),
+               "=&r"(v0), "=&r"(v1), "=&r"(v2),
+               "=&r"(v3), "=&r"(v4), "=&r"(v5),
+               "+&r"(code1), "+&r"(code2)
+             : "r"(levels - 1), "r"(-levels), "r"(ff_inverse[levels]));
+
+    return code1 | code2;
+}
+
+#endif
+
+#if HAVE_NEON_INLINE && HAVE_ASM_MOD_Y
+
+#define int8x8_fmul_int32 int8x8_fmul_int32
+static inline void int8x8_fmul_int32(float *dst, const int8_t *src, int scale)
+{
+    __asm__ ("vcvt.f32.s32 %2,  %2,  #4         \n"
+             "vld1.8       {d0},     [%1,:64]   \n"
+             "vmovl.s8     q0,  d0              \n"
+             "vmovl.s16    q1,  d1              \n"
+             "vmovl.s16    q0,  d0              \n"
+             "vcvt.f32.s32 q0,  q0              \n"
+             "vcvt.f32.s32 q1,  q1              \n"
+             "vmul.f32     q0,  q0,  %y2        \n"
+             "vmul.f32     q1,  q1,  %y2        \n"
+             "vst1.32      {q0-q1},  [%m0,:128] \n"
+             : "=Um"(*(float (*)[8])dst)
+             : "r"(src), "x"(scale)
+             : "d0", "d1", "d2", "d3");
+}
+
+#endif
+
+#endif /* AVCODEC_ARM_DCA_H */