Port folder renaming changes from AOM
Manually cherry-picked commits:
ceef058 libvpx->libaom part2
3d26d91 libvpx -> libaom
cfea7dd vp10/ -> av1/
3a8eff7 Fix a build issue for a test
bf4202e Rename vpx to aom
Change-Id: I1b0eb5a40796e3aaf41c58984b4229a439a597dc
diff --git a/av1/encoder/cost.h b/av1/encoder/cost.h
new file mode 100644
index 0000000..5ae2a79
--- /dev/null
+++ b/av1/encoder/cost.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2014 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 VP10_ENCODER_COST_H_
+#define VP10_ENCODER_COST_H_
+
+#include "aom_dsp/prob.h"
+#include "aom/vpx_integer.h"
+#if CONFIG_ANS
+#include "av1/common/ans.h"
+#endif // CONFIG_ANS
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern const uint16_t vp10_prob_cost[256];
+
+// The factor to scale from cost in bits to cost in vp10_prob_cost units.
+#define VP10_PROB_COST_SHIFT 9
+
+#define vp10_cost_zero(prob) (vp10_prob_cost[prob])
+
+#define vp10_cost_one(prob) vp10_cost_zero(256 - (prob))
+
+#define vp10_cost_bit(prob, bit) vp10_cost_zero((bit) ? 256 - (prob) : (prob))
+
+// Cost of coding an n bit literal, using 128 (i.e. 50%) probability
+// for each bit.
+#define vp10_cost_literal(n) ((n) * (1 << VP10_PROB_COST_SHIFT))
+
+static INLINE unsigned int cost_branch256(const unsigned int ct[2],
+ vpx_prob p) {
+ return ct[0] * vp10_cost_zero(p) + ct[1] * vp10_cost_one(p);
+}
+
+static INLINE int treed_cost(vpx_tree tree, const vpx_prob *probs, int bits,
+ int len) {
+ int cost = 0;
+ vpx_tree_index i = 0;
+
+ do {
+ const int bit = (bits >> --len) & 1;
+ cost += vp10_cost_bit(probs[i >> 1], bit);
+ i = tree[i + bit];
+ } while (len);
+
+ return cost;
+}
+
+void vp10_cost_tokens(int *costs, const vpx_prob *probs, vpx_tree tree);
+void vp10_cost_tokens_skip(int *costs, const vpx_prob *probs, vpx_tree tree);
+
+#if CONFIG_ANS
+void vp10_cost_tokens_ans(int *costs, const vpx_prob *tree_probs,
+ const rans_dec_lut token_cdf, int skip_eob);
+#endif
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // VP10_ENCODER_COST_H_
