arm/aarch64: Use mach_absolute_time as timer on apple platforms

This is much less precise than the cycle counter register, but
the cycle counter register is not available on apple platforms
(and on linux, it requires a kernel module for allowing user mode
access).

Signed-off-by: Martin Storsjö <martin@martin.st>

diff --git a/libavutil/aarch64/timer.h b/libavutil/aarch64/timer.h
index b5700394163364007e49c4c65895c8354e213016..8b28fd354ca18f57a5368034f8e68530172ff805 100644 (file)
--- a/libavutil/aarch64/timer.h
+++ b/libavutil/aarch64/timer.h
@@ -24,7 +24,13 @@
 #include <stdint.h>
 #include "config.h"
 
-#if HAVE_INLINE_ASM
+#if defined(__APPLE__)
+
+#include <mach/mach_time.h>
+
+#define AV_READ_TIME mach_absolute_time
+
+#elif HAVE_INLINE_ASM
 
 #define AV_READ_TIME read_time
 

diff --git a/libavutil/arm/timer.h b/libavutil/arm/timer.h
index 5e8bc8edd07bd4e92b773c6517bbe7bb4576d8b9..caf23e2a5aaca9128f307990dc267508daa6df1b 100644 (file)
--- a/libavutil/arm/timer.h
+++ b/libavutil/arm/timer.h
@@ -24,7 +24,13 @@
 #include <stdint.h>
 #include "config.h"
 
-#if HAVE_INLINE_ASM && defined(__ARM_ARCH_7A__)
+#if defined(__APPLE__)
+
+#include <mach/mach_time.h>
+
+#define AV_READ_TIME mach_absolute_time
+
+#elif HAVE_INLINE_ASM && defined(__ARM_ARCH_7A__)
 
 #define AV_READ_TIME read_time