f883b42cab
Cherry-Picked the following commits: 0defd8f Changed "WebM" to "AOMedia" & "webm" to "aomedia" 54e6676 Replace "VPx" by "AVx" 5082a36 Change "Vpx" to "Avx" 7df44f1 Replace "Vp9" w/ "Av1" 967f722 Remove kVp9CodecId 828f30c Change "Vp8" to "AOM" 030b5ff AUTHORS regenerated 2524cae Add ref-mv experimental flag 016762b Change copyright notice to AOMedia form 81e5526 Replace vp9 w/ av1 9b94565 Add missing files fa8ca9f Change "vp9" to "av1" ec838b7 Convert "vp8" to "aom" 80edfa0 Change "VP9" to "AV1" d1a11fb Change "vp8" to "aom" 7b58251 Point to WebM test data dd1a5c8 Replace "VP8" with "AOM" ff00fc0 Change "VPX" to "AOM" 01dee0b Change "vp10" to "av1" in source code cebe6f0 Convert "vpx" to "aom" 17b0567 rename vp10*.mk to av1_*.mk fe5f8a8 rename files vp10_* to av1_* Change-Id: I6fc3d18eb11fc171e46140c836ad5339cf6c9419
80 lines
2.8 KiB
C
80 lines
2.8 KiB
C
/*
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* Copyright (c) 2013 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 AV1_COMMON_SCALE_H_
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#define AV1_COMMON_SCALE_H_
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#include "av1/common/mv.h"
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#include "aom_dsp/aom_convolve.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define REF_SCALE_SHIFT 14
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#define REF_NO_SCALE (1 << REF_SCALE_SHIFT)
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#define REF_INVALID_SCALE -1
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struct scale_factors {
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int x_scale_fp; // horizontal fixed point scale factor
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int y_scale_fp; // vertical fixed point scale factor
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int x_step_q4;
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int y_step_q4;
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int (*scale_value_x)(int val, const struct scale_factors *sf);
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int (*scale_value_y)(int val, const struct scale_factors *sf);
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convolve_fn_t predict[2][2][2]; // horiz, vert, avg
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#if CONFIG_AOM_HIGHBITDEPTH
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highbd_convolve_fn_t highbd_predict[2][2][2]; // horiz, vert, avg
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#endif // CONFIG_AOM_HIGHBITDEPTH
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// Functions for non-interpolating filters (those that filter zero offsets)
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#if CONFIG_EXT_INTERP && SUPPORT_NONINTERPOLATING_FILTERS
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convolve_fn_t predict_ni[2][2][2]; // horiz, vert, avg
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#if CONFIG_AOM_HIGHBITDEPTH
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highbd_convolve_fn_t highbd_predict_ni[2][2][2]; // horiz, vert, avg
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#endif // CONFIG_AOM_HIGHBITDEPTH
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#endif // CONFIG_EXT_INTERP && SUPPORT_NONINTERPOLATING_FILTERS
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};
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MV32 av1_scale_mv(const MV *mv, int x, int y, const struct scale_factors *sf);
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#if CONFIG_AOM_HIGHBITDEPTH
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void av1_setup_scale_factors_for_frame(struct scale_factors *sf, int other_w,
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int other_h, int this_w, int this_h,
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int use_high);
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#else
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void av1_setup_scale_factors_for_frame(struct scale_factors *sf, int other_w,
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int other_h, int this_w, int this_h);
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#endif // CONFIG_AOM_HIGHBITDEPTH
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static INLINE int av1_is_valid_scale(const struct scale_factors *sf) {
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return sf->x_scale_fp != REF_INVALID_SCALE &&
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sf->y_scale_fp != REF_INVALID_SCALE;
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}
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static INLINE int av1_is_scaled(const struct scale_factors *sf) {
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return av1_is_valid_scale(sf) &&
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(sf->x_scale_fp != REF_NO_SCALE || sf->y_scale_fp != REF_NO_SCALE);
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}
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static INLINE int valid_ref_frame_size(int ref_width, int ref_height,
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int this_width, int this_height) {
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return 2 * this_width >= ref_width && 2 * this_height >= ref_height &&
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this_width <= 16 * ref_width && this_height <= 16 * ref_height;
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}
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // AV1_COMMON_SCALE_H_
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