4e66293fcb
Calculate the difference variance between last source frame and current source frame. The variance is calculated at 16x16 block level. The variances are compared to several thresholds to decide final partition sizes. An adaptive strategy is implemented to decide using SOURCE_VAR_BASED_PARTITION or FIXED_PARTITION based on motions in the video. The switching test is done once every search_type_check_frequency frames. The selection of source_var_thresh needs to be investigated further later. RTC set Borg test showed 0.424% overall psnr gain, and 0.357% ssim gain. For clips with large enough static area, the encoding speedup is around 2% to 15%. Change-Id: Id7d268f1d8cbca7fb8026aa4a53b3c77459dc156
40 lines
969 B
C
40 lines
969 B
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VP9_ENCODER_VP9_ENCODEFRAME_H_
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#define VP9_ENCODER_VP9_ENCODEFRAME_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct macroblock;
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struct yv12_buffer_config;
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struct VP9_COMP;
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typedef struct {
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unsigned int sse;
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int sum;
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unsigned int var;
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} diff;
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void vp9_setup_src_planes(struct macroblock *x,
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const struct yv12_buffer_config *src,
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int mi_row, int mi_col);
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void vp9_encode_frame(struct VP9_COMP *cpi);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // VP9_ENCODER_VP9_ENCODEFRAME_H_
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