vp9_subexp.h 1.29 KB
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/*
 *  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.
 */

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#ifndef VP9_ENCODER_VP9_SUBEXP_H_
#define VP9_ENCODER_VP9_SUBEXP_H_
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#ifdef __cplusplus
extern "C" {
#endif

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#include "vpx_dsp/prob.h"
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struct vpx_writer;
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void vp9_write_prob_diff_update(struct vpx_writer *w, vpx_prob newp,
                                vpx_prob oldp);
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void vp9_cond_prob_diff_update(struct vpx_writer *w, vpx_prob *oldp,
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                               const unsigned int ct[2]);
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int vp9_prob_diff_update_savings_search(const unsigned int *ct, vpx_prob oldp,
                                        vpx_prob *bestp, vpx_prob upd);
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int vp9_prob_diff_update_savings_search_model(const unsigned int *ct,
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                                              const vpx_prob oldp,
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                                              vpx_prob *bestp, vpx_prob upd,
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                                              int stepsize);
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#ifdef __cplusplus
}  // extern "C"
#endif

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#endif  // VP9_ENCODER_VP9_SUBEXP_H_