Split libavutil/timer.h per architecture

Originally committed as revision 18304 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 35 insertions, 0 deletions

diff --git a/libavutil/x86/timer.h b/libavutil/x86/timer.h
new file mode 100644
index 0000000000..62a111fdd3
--- /dev/null
+++ b/libavutil/x86/timer.h
@@ -0,0 +1,35 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * 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_X86_TIMER_H
+#define AVUTIL_X86_TIMER_H
+
+#include <stdint.h>
+
+#define AV_READ_TIME read_time
+
+static inline uint64_t read_time(void)
+{
+    uint32_t a, d;
+    __asm__ volatile("rdtsc" : "=a" (a), "=d" (d));
+    return ((uint64_t)d << 32) + a;
+}
+
+#endif /* AVUTIL_X86_TIMER_H */