40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
#include "./size.h"
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namespace TagParser {
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/// \cond
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constexpr Size fromHeightAndAspectRatio(std::uint32_t height, std::uint32_t numerator = 4, std::uint32_t denominator = 3)
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{
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return Size(height * numerator / denominator, height);
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}
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/// \endcond
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/*!
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* \brief Returns an abbreviation for the current instance, eg. 720p for sizes greater than 960×720
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* and 1080p for sizes greater than 1440×1080.
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* \remarks The width thresolds are for 4:3 resolutions so both, 4:3 and 16:9 "720p" is considered as such.
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*/
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std::string_view Size::abbreviation() const
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{
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if (*this >= fromHeightAndAspectRatio(4320)) {
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return "8k";
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} else if (*this >= fromHeightAndAspectRatio(2160)) {
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return "4k";
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} else if (*this >= fromHeightAndAspectRatio(1080)) {
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return "1080p";
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} else if (*this >= fromHeightAndAspectRatio(720)) {
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return "720p";
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} else if (*this >= fromHeightAndAspectRatio(576)) {
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return "576p";
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} else if (*this >= fromHeightAndAspectRatio(480)) {
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return "480p";
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} else if (*this >= fromHeightAndAspectRatio(320)) {
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return "320p";
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} else if (*this >= fromHeightAndAspectRatio(240)) {
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return "240p";
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}
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return "<240p";
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}
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} // namespace TagParser
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