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43 lines
1.5 KiB
43 lines
1.5 KiB
// Copyright 2016 Google Inc. 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 COPYING 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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// |
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// Internal header for animation related functions. |
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// |
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// Author: Hui Su (huisu@google.com) |
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#ifndef WEBP_MUX_ANIMI_H_ |
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#define WEBP_MUX_ANIMI_H_ |
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#include "../webp/mux.h" |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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// Picks the optimal rectangle between two pictures, starting with initial |
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// values of offsets and dimensions that are passed in. The initial |
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// values will be clipped, if necessary, to make sure the rectangle is |
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// within the canvas. "use_argb" must be true for both pictures. |
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// Parameters: |
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// prev_canvas, curr_canvas - (in) two input pictures to compare. |
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// is_lossless, quality - (in) encoding settings. |
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// x_offset, y_offset, width, height - (in/out) rectangle between the two |
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// input pictures. |
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// Returns true on success. |
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int WebPAnimEncoderRefineRect( |
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const struct WebPPicture* const prev_canvas, |
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const struct WebPPicture* const curr_canvas, |
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int is_lossless, float quality, int* const x_offset, int* const y_offset, |
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int* const width, int* const height); |
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#ifdef __cplusplus |
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} // extern "C" |
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#endif |
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#endif /* WEBP_MUX_ANIMI_H_ */
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