#include <pngchunk_int.hpp>
Public Types | |
enum | TxtChunkType { tEXt_Chunk = 0, zTXt_Chunk = 1, iTXt_Chunk = 2 } |
Text Chunk types. | |
Static Public Member Functions | |
void | decodeIHDRChunk (const DataBuf &data, int *outWidth, int *outHeight) |
Decode PNG IHDR chunk data from a data buffer data and return image size to outWidth and outHeight. | |
void | decodeTXTChunk (Image *pImage, const DataBuf &data, TxtChunkType type) |
Decode PNG tEXt, zTXt, or iTXt chunk data from pImage passed by data buffer data and extract Comment, Exif, Iptc, Xmp metadata accordingly. | |
DataBuf | keyTXTChunk (const DataBuf &data, bool stripHeader=false) |
Return PNG TXT chunk key as data buffer. | |
std::string | makeMetadataChunk (const std::string &metadata, MetadataId type) |
Return a complete PNG chunk data compressed or not as buffer. Data returned is formated accordingly with metadata type to host passed by metadata. |
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Decode PNG IHDR chunk data from a data buffer data and return image size to outWidth and outHeight.
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Decode PNG tEXt, zTXt, or iTXt chunk data from pImage passed by data buffer data and extract Comment, Exif, Iptc, Xmp metadata accordingly.
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Return PNG TXT chunk key as data buffer.
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Return a complete PNG chunk data compressed or not as buffer. Data returned is formated accordingly with metadata type to host passed by metadata.
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