png_get_channels 7826 src/image.c    DEF_DLL_FN (png_byte, png_get_channels, (png_structp, png_infop));
png_get_channels 7865 src/image.c      LOAD_DLL_FN (library, png_get_channels);
png_get_channels 8251 src/image.c      channels = png_get_channels (png_ptr, info_ptr);