adding ffmpeg specific version

1 files changed, 46 insertions, 0 deletions

diff --git a/ffmpeg1/libavutil/mips/intreadwrite.h b/ffmpeg1/libavutil/mips/intreadwrite.h
new file mode 100644
index 0000000..9ba0491
--- /dev/null
+++ b/ffmpeg1/libavutil/mips/intreadwrite.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
+ *
+ * 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
+ */
+
+#ifndef AVUTIL_MIPS_INTREADWRITE_H
+#define AVUTIL_MIPS_INTREADWRITE_H
+
+#include <stdint.h>
+#include "config.h"
+
+#if ARCH_MIPS64 && HAVE_INLINE_ASM
+
+#define AV_RN32 AV_RN32
+static av_always_inline uint32_t AV_RN32(const void *p)
+{
+    struct __attribute__((packed)) u32 { uint32_t v; };
+    const uint8_t *q = p;
+    const struct u32 *pl = (const struct u32 *)(q + 3 * !HAVE_BIGENDIAN);
+    const struct u32 *pr = (const struct u32 *)(q + 3 *  HAVE_BIGENDIAN);
+    uint32_t v;
+    __asm__ ("lwl %0, %1  \n\t"
+             "lwr %0, %2  \n\t"
+             : "=&r"(v)
+             : "m"(*pl), "m"(*pr));
+    return v;
+}
+
+#endif /* ARCH_MIPS64 && HAVE_INLINE_ASM */
+
+#endif /* AVUTIL_MIPS_INTREADWRITE_H */