本对象允许卖方为按时长差异定价的视频与音频创意指定价格底线。例如：1–15 秒底价 $5；16–30 秒底价 $10；31 秒以上底价 $20。对已定义的区间无显式约束，也不保证其互不重叠；在多区间可能同时适用时，由买卖双方协调确定适用的底价。关于这些字段使用的更多说明，参见实施指引第 7.11 节。译稿校对中ENThis object allows sellers to specify price floors for video and audio creatives, whose price varies based on time. For example: 1-15 seconds at a floor of $5; 16-30 seconds at a floor of $10, > 31 seconds at a floor of $20. There are no explicit constraints on the defined ranges, nor guarantees that they don't overlap. In cases where multiple ranges may apply, it is up to the buyer and seller to coordinate on which floor is applicable. See [Section 7.11 of Implementation Guidance](implementation.md#floors) for additional notes regarding the use of these fields.
| Attribute | Type | Description |
|---|---|---|
| mindur | integer | 指示时长范围下限的整数。该取值缺失时，下限无界。mindur 与 maxdur 必须至少提供其一，但不可同时提供。译稿校对中ENAn integer indicating the low end of a duration range. If this value is missing, the low end is unbounded. Either mindur or maxdur is required, but not both. |
| maxdur | integer | 指示时长范围上限的整数。该取值缺失时，上限无界。mindur 与 maxdur 必须至少提供其一，但不可同时提供。译稿校对中ENAn integer indicating the high end of a duration range. If this value is missing, the high end is unbounded. Either mindur or maxdur is required, but not both. |
| bidfloor default 0 | float | 若以该时长范围内的创意出价，给定展示机会的最低出价，以 CPM（Cost Per Mille，每千次展示成本）计价。对时长落在所定义 min/max 之外的创意，Imp 级的 bidfloor 作为默认底价。译稿校对中ENMinimum bid for a given impression opportunity, if bidding with a creative in this duration range, expressed in CPM. For any creatives whose durations are outside of the defined min/max, the bidfloor at the Imp level will serve as the default floor. |
| ext | object | 供供应商对本对象进行专属扩展（vendor specific extensions）的占位对象。译稿校对中ENPlaceholder for vendor specific extensions to this object. |
译注
译者注DurFloors 的区间语义：卖方按时长为视频/音频创意设置差异化底价（如 1–15 秒 $5、16–30 秒 $10、31 秒以上 $20）；规范不保证区间无重叠，多区间同时适用时由买卖双方协调确定适用底价（另见实施指引第 7.11 节）。译稿校对中
mindur/maxdur 的无界表达：二者至多其一——只传 maxdur 表示“≤ 上限”，只传 mindur 表示“≥ 下限”；超出全部区间的创意回退到 Imp 级 bidfloor。出价前应按创意时长匹配对应区间，避免底价误判。译稿校对中
字段描述收录自 IAB Tech Lab OpenRTB 2.6 官方规范（CC-BY 3.0）· 枚举值来源 AdCOM 1.0 · 初稿校对中