diff options
author | Dmitry Kovalev <dkovalev@google.com> | 2013-08-09 14:07:09 -0700 |
---|---|---|
committer | Dmitry Kovalev <dkovalev@google.com> | 2013-08-09 14:07:09 -0700 |
commit | 8ffe85ad0086a41edcbc9543baba7437334fb7b4 (patch) | |
tree | 7a891a668a98afff301852dfea5e171688f02ff8 /vp9/common/vp9_scale.h | |
parent | ace93a175de219fa0b9a643ef8c217dea4217564 (diff) | |
download | libvpx-8ffe85ad0086a41edcbc9543baba7437334fb7b4.tar libvpx-8ffe85ad0086a41edcbc9543baba7437334fb7b4.tar.gz libvpx-8ffe85ad0086a41edcbc9543baba7437334fb7b4.tar.bz2 libvpx-8ffe85ad0086a41edcbc9543baba7437334fb7b4.zip |
Moving scale_factors and related code to separate files.
Change-Id: I531829e5aee2a4a7a112d528ecccbddf052d0e74
Diffstat (limited to 'vp9/common/vp9_scale.h')
-rw-r--r-- | vp9/common/vp9_scale.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/vp9/common/vp9_scale.h b/vp9/common/vp9_scale.h new file mode 100644 index 000000000..0414dde5e --- /dev/null +++ b/vp9/common/vp9_scale.h @@ -0,0 +1,40 @@ +/* + * 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. + */ + +#ifndef VP9_COMMON_VP9_SCALE_H_ +#define VP9_COMMON_VP9_SCALE_H_ + +#include "vp9/common/vp9_mv.h" +#include "vp9/common/vp9_convolve.h" + +#define VP9_REF_SCALE_SHIFT 14 +#define VP9_REF_NO_SCALE (1 << VP9_REF_SCALE_SHIFT) + +struct scale_factors { + int x_scale_fp; // horizontal fixed point scale factor + int y_scale_fp; // vertical fixed point scale factor + int x_offset_q4; + int x_step_q4; + int y_offset_q4; + int y_step_q4; + + int (*scale_value_x)(int val, const struct scale_factors *scale); + int (*scale_value_y)(int val, const struct scale_factors *scale); + void (*set_scaled_offsets)(struct scale_factors *scale, int row, int col); + MV32 (*scale_mv)(const MV *mv, const struct scale_factors *scale); + + convolve_fn_t predict[2][2][2]; // horiz, vert, avg +}; + +void vp9_setup_scale_factors_for_frame(struct scale_factors *scale, + int other_w, int other_h, + int this_w, int this_h); + +#endif // VP9_COMMON_VP9_SCALE_H_ |