diff -r 000000000000 -r 6474c204b198 media/libvpx/vp9/encoder/vp9_ratectrl.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/media/libvpx/vp9/encoder/vp9_ratectrl.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,39 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VP9_ENCODER_VP9_RATECTRL_H_
+#define VP9_ENCODER_VP9_RATECTRL_H_
+
+#include "vp9/encoder/vp9_onyx_int.h"
+
+#define FRAME_OVERHEAD_BITS 200
+
+void vp9_save_coding_context(VP9_COMP *cpi);
+void vp9_restore_coding_context(VP9_COMP *cpi);
+
+void vp9_setup_key_frame(VP9_COMP *cpi);
+void vp9_update_rate_correction_factors(VP9_COMP *cpi, int damp_var);
+int vp9_regulate_q(VP9_COMP *cpi, int target_bits_per_frame);
+void vp9_adjust_key_frame_context(VP9_COMP *cpi);
+void vp9_compute_frame_size_bounds(VP9_COMP *cpi,
+                                   int *frame_under_shoot_limit,
+                                   int *frame_over_shoot_limit);
+
+// return of 0 means drop frame
+int vp9_pick_frame_size(VP9_COMP *cpi);
+
+double vp9_convert_qindex_to_q(int qindex);
+int vp9_gfboost_qadjust(int qindex);
+int vp9_bits_per_mb(FRAME_TYPE frame_type, int qindex,
+                    double correction_factor);
+void vp9_setup_inter_frame(VP9_COMP *cpi);
+
+#endif  // VP9_ENCODER_VP9_RATECTRL_H_