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-rw-r--r--third_party/aom/av1/common/entropymode.h8
1 files changed, 5 insertions, 3 deletions
diff --git a/third_party/aom/av1/common/entropymode.h b/third_party/aom/av1/common/entropymode.h
index 0bd2e20a1..7047f34d2 100644
--- a/third_party/aom/av1/common/entropymode.h
+++ b/third_party/aom/av1/common/entropymode.h
@@ -9,8 +9,8 @@
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
-#ifndef AV1_COMMON_ENTROPYMODE_H_
-#define AV1_COMMON_ENTROPYMODE_H_
+#ifndef AOM_AV1_COMMON_ENTROPYMODE_H_
+#define AOM_AV1_COMMON_ENTROPYMODE_H_
#include "av1/common/entropy.h"
#include "av1/common/entropymv.h"
@@ -186,6 +186,8 @@ void av1_set_default_mode_deltas(int8_t *mode_deltas);
void av1_setup_frame_contexts(struct AV1Common *cm);
void av1_setup_past_independence(struct AV1Common *cm);
+// Returns (int)ceil(log2(n)).
+// NOTE: This implementation only works for n <= 2^30.
static INLINE int av1_ceil_log2(int n) {
if (n < 2) return 0;
int i = 1, p = 2;
@@ -207,4 +209,4 @@ int av1_get_palette_color_index_context(const uint8_t *color_map, int stride,
} // extern "C"
#endif
-#endif // AV1_COMMON_ENTROPYMODE_H_
+#endif // AOM_AV1_COMMON_ENTROPYMODE_H_