1 files changed, 44 insertions, 0 deletions
diff --git a/media/libvpx/vp9/encoder/vp9_subexp.h b/media/libvpx/vp9/encoder/vp9_subexp.h
new file mode 100644
index 000000000..6fbb747e7
--- /dev/null
+++ b/media/libvpx/vp9/encoder/vp9_subexp.h
@@ -0,0 +1,44 @@
+/*
+ *  Copyright (c) 2013 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_SUBEXP_H_
+#define VP9_ENCODER_VP9_SUBEXP_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "vp9/common/vp9_prob.h"
+
+struct vp9_writer;
+
+void vp9_write_prob_diff_update(struct vp9_writer *w,
+                                vp9_prob newp, vp9_prob oldp);
+
+void vp9_cond_prob_diff_update(struct vp9_writer *w, vp9_prob *oldp,
+                               const unsigned int ct[2]);
+
+int vp9_prob_diff_update_savings_search(const unsigned int *ct,
+                                        vp9_prob oldp, vp9_prob *bestp,
+                                        vp9_prob upd);
+
+
+int vp9_prob_diff_update_savings_search_model(const unsigned int *ct,
+                                              const vp9_prob *oldp,
+                                              vp9_prob *bestp,
+                                              vp9_prob upd,
+                                              int stepsize);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP9_ENCODER_VP9_SUBEXP_H_