nvenc_version.h

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#pragma once
 
// standard includes
#include <cstdint>
#include <utility>
 
namespace nvenc {
 
  enum class nvenc_sdk_version : std::uint32_t {
    unsupported = 0U,  
    sdk_11_0 = 1100U,  
    sdk_12_0 = 1200U,  
    sdk_13_0 = 1300U,  
  };
 
  constexpr std::uint32_t decode_nvenc_driver_version(std::uint32_t version) {
    return (version >> 4U) * 100U + (version & 0x0FU);
  }
 
  constexpr nvenc_sdk_version select_nvenc_sdk_version(std::uint32_t max_version) {
    using enum nvenc_sdk_version;
    if (max_version >= std::to_underlying(sdk_13_0)) {
      return sdk_13_0;
    }
    if (max_version >= std::to_underlying(sdk_12_0)) {
      return sdk_12_0;
    }
    if (max_version >= std::to_underlying(sdk_11_0)) {
      return sdk_11_0;
    }
    return unsupported;
  }
 
}  // namespace nvenc