1 | // Copyright 2016 Google Inc. All Rights Reserved. |
2 | // |
3 | // Use of this source code is governed by a BSD-style license |
4 | // that can be found in the COPYING file in the root of the source |
5 | // tree. An additional intellectual property rights grant can be found |
6 | // in the file PATENTS. All contributing project authors may |
7 | // be found in the AUTHORS file in the root of the source tree. |
8 | // ----------------------------------------------------------------------------- |
9 | // |
10 | // Internal header for animation related functions. |
11 | // |
12 | // Author: Hui Su (huisu@google.com) |
13 | |
14 | #ifndef WEBP_MUX_ANIMI_H_ |
15 | #define WEBP_MUX_ANIMI_H_ |
16 | |
17 | #include "src/webp/mux.h" |
18 | |
19 | #ifdef __cplusplus |
20 | extern "C" { |
21 | #endif |
22 | |
23 | // Picks the optimal rectangle between two pictures, starting with initial |
24 | // values of offsets and dimensions that are passed in. The initial |
25 | // values will be clipped, if necessary, to make sure the rectangle is |
26 | // within the canvas. "use_argb" must be true for both pictures. |
27 | // Parameters: |
28 | // prev_canvas, curr_canvas - (in) two input pictures to compare. |
29 | // is_lossless, quality - (in) encoding settings. |
30 | // x_offset, y_offset, width, height - (in/out) rectangle between the two |
31 | // input pictures. |
32 | // Returns true on success. |
33 | int WebPAnimEncoderRefineRect( |
34 | const struct WebPPicture* const prev_canvas, |
35 | const struct WebPPicture* const curr_canvas, |
36 | int is_lossless, float quality, int* const x_offset, int* const y_offset, |
37 | int* const width, int* const height); |
38 | |
39 | #ifdef __cplusplus |
40 | } // extern "C" |
41 | #endif |
42 | |
43 | #endif // WEBP_MUX_ANIMI_H_ |
44 | |