-#define _MMCAMCORDER_CAST_MTSAFE(handle) (((mmf_camcorder_t*)handle)->mtsafe)
-#define _MMCAMCORDER_LOCK_FUNC(mutex) pthread_mutex_lock(&mutex)
-#define _MMCAMCORDER_TRYLOCK_FUNC(mutex) (!pthread_mutex_trylock(&mutex))
-#define _MMCAMCORDER_UNLOCK_FUNC(mutex) pthread_mutex_unlock(&mutex)
-
-#define _MMCAMCORDER_GET_LOCK(handle) (_MMCAMCORDER_CAST_MTSAFE(handle).lock)
-#define _MMCAMCORDER_LOCK(handle) _MMCAMCORDER_LOCK_FUNC(_MMCAMCORDER_GET_LOCK(handle))
-#define _MMCAMCORDER_TRYLOCK(handle) _MMCAMCORDER_TRYLOCK_FUNC(_MMCAMCORDER_GET_LOCK(handle))
-#define _MMCAMCORDER_UNLOCK(handle) _MMCAMCORDER_UNLOCK_FUNC(_MMCAMCORDER_GET_LOCK(handle))
-
-#define _MMCAMCORDER_GET_COND(handle) (_MMCAMCORDER_CAST_MTSAFE(handle).cond)
-#define _MMCAMCORDER_WAIT(handle) pthread_cond_wait(&_MMCAMCORDER_GET_COND(handle), &_MMCAMCORDER_GET_LOCK(handle))
-#define _MMCAMCORDER_TIMED_WAIT(handle, timeout) pthread_cond_timedwait(&_MMCAMCORDER_GET_COND(handle), &_MMCAMCORDER_GET_LOCK(handle), &timeout)
-#define _MMCAMCORDER_SIGNAL(handle) pthread_cond_signal(&_MMCAMCORDER_GET_COND(handle));
-#define _MMCAMCORDER_BROADCAST(handle) pthread_cond_broadcast(&_MMCAMCORDER_GET_COND(handle));
+#define _MMCAMCORDER_CAST_MTSAFE(handle) (((mmf_camcorder_t*)handle)->mtsafe)
+#define _MMCAMCORDER_LOCK_FUNC(mutex) g_mutex_lock(&mutex)
+#define _MMCAMCORDER_TRYLOCK_FUNC(mutex) g_mutex_trylock(&mutex)
+#define _MMCAMCORDER_UNLOCK_FUNC(mutex) g_mutex_unlock(&mutex)
+
+#define _MMCAMCORDER_GET_LOCK(handle) (_MMCAMCORDER_CAST_MTSAFE(handle).lock)
+#define _MMCAMCORDER_LOCK(handle) _MMCAMCORDER_LOCK_FUNC(_MMCAMCORDER_GET_LOCK(handle))
+#define _MMCAMCORDER_TRYLOCK(handle) _MMCAMCORDER_TRYLOCK_FUNC(_MMCAMCORDER_GET_LOCK(handle))
+#define _MMCAMCORDER_UNLOCK(handle) _MMCAMCORDER_UNLOCK_FUNC(_MMCAMCORDER_GET_LOCK(handle))
+
+#define _MMCAMCORDER_GET_COND(handle) (_MMCAMCORDER_CAST_MTSAFE(handle).cond)
+#define _MMCAMCORDER_WAIT(handle) g_cond_wait(&_MMCAMCORDER_GET_COND(handle), &_MMCAMCORDER_GET_LOCK(handle))
+#define _MMCAMCORDER_WAIT_UNTIL(handle, end_time) g_cond_wait_until(&_MMCAMCORDER_GET_COND(handle), &_MMCAMCORDER_GET_LOCK(handle), end_time)
+#define _MMCAMCORDER_SIGNAL(handle) g_cond_signal(&_MMCAMCORDER_GET_COND(handle));
+#define _MMCAMCORDER_BROADCAST(handle) g_cond_broadcast(&_MMCAMCORDER_GET_COND(handle));