mirror of
https://github.com/webmproject/libwebp.git
synced 2024-11-20 04:18:26 +01:00
96201e50ea
+ jenkins fixes for native config (library order) + add a missing -lm + replace log10 by log, just in case + partially reverted configure.ac to remove the C++ part Change-Id: Iee099c544451b23c6cfaca53d5a95d2d332e066e
64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
// Copyright 2015 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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// Utilities for animated images
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#ifndef WEBP_EXAMPLES_ANIM_UTIL_H_
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#define WEBP_EXAMPLES_ANIM_UTIL_H_
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#ifdef HAVE_CONFIG_H
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#include "webp/config.h"
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#endif
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#include "webp/types.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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uint8_t* rgba; // Decoded and reconstructed full frame.
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int duration; // Frame duration in milliseconds.
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int is_key_frame; // True if this frame is a key-frame.
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} DecodedFrame;
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typedef struct {
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uint32_t canvas_width;
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uint32_t canvas_height;
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uint32_t bgcolor;
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uint32_t loop_count;
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DecodedFrame* frames;
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uint32_t num_frames;
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void* raw_mem;
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} AnimatedImage;
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// Deallocate everything in 'image' (but not the object itself).
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void ClearAnimatedImage(AnimatedImage* const image);
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// Read animated image file into 'AnimatedImage' struct.
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// If 'dump_frames' is true, dump frames to 'dump_folder'.
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// Previous content of 'image' is obliterated.
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// Upon successful return, content of 'image' must be deleted by
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// calling 'ClearAnimatedImage'.
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int ReadAnimatedImage(const char filename[], AnimatedImage* const image,
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int dump_frames, const char dump_folder[]);
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// Given two RGBA buffers, calculate max pixel difference and PSNR.
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// If 'premultiply' is true, R/G/B values will be pre-multiplied by the
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// transparency before comparison.
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void GetDiffAndPSNR(const uint8_t rgba1[], const uint8_t rgba2[],
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uint32_t width, uint32_t height, int premultiply,
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int* const max_diff, double* const psnr);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // WEBP_EXAMPLES_ANIM_UTIL_H_
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