PNG_FILTER_TYPE_BASE 1280 3rdparty/libpng/png.c    if (filter_type != PNG_FILTER_TYPE_BASE)
PNG_FILTER_TYPE_BASE 1300 3rdparty/libpng/png.c    if (filter_type != PNG_FILTER_TYPE_BASE)
PNG_FILTER_TYPE_BASE  768 3rdparty/libpng/png.h #define PNG_FILTER_TYPE_DEFAULT   PNG_FILTER_TYPE_BASE
PNG_FILTER_TYPE_BASE 1034 3rdparty/libpng/pngwrite.c       method = PNG_FILTER_TYPE_BASE;
PNG_FILTER_TYPE_BASE 1037 3rdparty/libpng/pngwrite.c    if (method == PNG_FILTER_TYPE_BASE)
PNG_FILTER_TYPE_BASE  777 3rdparty/libpng/pngwutil.c        filter_type != PNG_FILTER_TYPE_BASE)
PNG_FILTER_TYPE_BASE  780 3rdparty/libpng/pngwutil.c       filter_type = PNG_FILTER_TYPE_BASE;
PNG_FILTER_TYPE_BASE  406 modules/imgcodecs/src/grfmt_png.cpp                         png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE, PNG_FILTER_SUB);