The Tor Browser / file comparison
comparison: media/libvpx/vp9/common/vp9_scale.h
media/libvpx/vp9/common/vp9_scale.h
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
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| -1:000000000000 | 0:5eaeb6e6b6c7 |
|---|---|
| 1 /* | |
| 2 * Copyright (c) 2013 The WebM project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #ifndef VP9_COMMON_VP9_SCALE_H_ | |
| 12 #define VP9_COMMON_VP9_SCALE_H_ | |
| 13 | |
| 14 #include "vp9/common/vp9_mv.h" | |
| 15 #include "vp9/common/vp9_convolve.h" | |
| 16 | |
| 17 #define REF_SCALE_SHIFT 14 | |
| 18 #define REF_NO_SCALE (1 << REF_SCALE_SHIFT) | |
| 19 #define REF_INVALID_SCALE -1 | |
| 20 | |
| 21 struct scale_factors; | |
| 22 struct scale_factors_common { | |
| 23 int x_scale_fp; // horizontal fixed point scale factor | |
| 24 int y_scale_fp; // vertical fixed point scale factor | |
| 25 int x_step_q4; | |
| 26 int y_step_q4; | |
| 27 | |
| 28 int (*scale_value_x)(int val, const struct scale_factors_common *sfc); | |
| 29 int (*scale_value_y)(int val, const struct scale_factors_common *sfc); | |
| 30 void (*set_scaled_offsets)(struct scale_factors *scale, int row, int col); | |
| 31 MV32 (*scale_mv)(const MV *mv, const struct scale_factors *scale); | |
| 32 | |
| 33 convolve_fn_t predict[2][2][2]; // horiz, vert, avg | |
| 34 }; | |
| 35 | |
| 36 struct scale_factors { | |
| 37 int x_offset_q4; | |
| 38 int y_offset_q4; | |
| 39 const struct scale_factors_common *sfc; | |
| 40 }; | |
| 41 | |
| 42 void vp9_setup_scale_factors_for_frame(struct scale_factors *scale, | |
| 43 struct scale_factors_common *scale_comm, | |
| 44 int other_w, int other_h, | |
| 45 int this_w, int this_h); | |
| 46 | |
| 47 static int vp9_is_valid_scale(const struct scale_factors_common *sfc) { | |
| 48 return sfc->x_scale_fp != REF_INVALID_SCALE && | |
| 49 sfc->y_scale_fp != REF_INVALID_SCALE; | |
| 50 } | |
| 51 | |
| 52 static int vp9_is_scaled(const struct scale_factors_common *sfc) { | |
| 53 return sfc->x_scale_fp != REF_NO_SCALE || | |
| 54 sfc->y_scale_fp != REF_NO_SCALE; | |
| 55 } | |
| 56 | |
| 57 #endif // VP9_COMMON_VP9_SCALE_H_ |
