apps/shared/avifpng.h

// Copyright 2019 Joe Drago. All rights reserved.
// SPDX-License-Identifier: BSD-2-Clause

#ifndef LIBAVIF_APPS_SHARED_AVIFPNG_H
#define LIBAVIF_APPS_SHARED_AVIFPNG_H

#include "avif/avif.h"

#ifdef __cplusplus
extern "C" {
#endif

// if (requestedDepth == 0), do best-fit
avifBool avifPNGRead(const char * inputFilename,
                     avifImage * avif,
                     avifPixelFormat requestedFormat,
                     uint32_t requestedDepth,
                     avifChromaDownsampling chromaDownsampling,
                     avifBool ignoreColorProfile,
                     avifBool ignoreExif,
                     avifBool ignoreXMP,
                     avifBool ignoreAlpha,
                     uint32_t imageSizeLimit,
                     uint32_t * outPNGDepth);

// Parse the PNG file at path 'inputFilename' and write its metadata into 'avif'
// without decoding the pixels.
avifBool avifPNGPeek(const char * inputFilename, avifImage * avif);

avifBool avifPNGWrite(const char * outputFilename,
                      const avifImage * avif,
                      uint32_t requestedDepth,
                      avifChromaUpsampling chromaUpsampling,
                      int compressionLevel);

#ifdef __cplusplus
} // extern "C"
#endif

#endif // ifndef LIBAVIF_APPS_SHARED_AVIFPNG_H