1e41f4b71Sopenharmony_ci# StreamInfo 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci 4e41f4b71Sopenharmony_ci## 概述 5e41f4b71Sopenharmony_ci 6e41f4b71Sopenharmony_ci流信息，用于创建流时传入相关的配置参数。 7e41f4b71Sopenharmony_ci 8e41f4b71Sopenharmony_ci**起始版本：** 3.2 9e41f4b71Sopenharmony_ci 10e41f4b71Sopenharmony_ci**相关模块：**[Camera](_camera_v10.md) 11e41f4b71Sopenharmony_ci 12e41f4b71Sopenharmony_ci 13e41f4b71Sopenharmony_ci## 汇总 14e41f4b71Sopenharmony_ci 15e41f4b71Sopenharmony_ci 16e41f4b71Sopenharmony_ci### Public 属性 17e41f4b71Sopenharmony_ci 18e41f4b71Sopenharmony_ci| 名称 | 描述 | 19e41f4b71Sopenharmony_ci| -------- | -------- | 20e41f4b71Sopenharmony_ci| int [streamId_](#streamid_) | 流的ID，用于在设备内唯一标识一条流。 | 21e41f4b71Sopenharmony_ci| int [width_](#width_) | 图像宽度。 | 22e41f4b71Sopenharmony_ci| int [height_](#height_) | 图像高度。 | 23e41f4b71Sopenharmony_ci| int [format_](#format_) | 图像格式。 | 24e41f4b71Sopenharmony_ci| int [dataspace_](#dataspace_) | 图像颜色空间。 | 25e41f4b71Sopenharmony_ci| enum [StreamIntent](_camera_v10.md#streamintent)[intent_](#intent_) | 流类型。 | 26e41f4b71Sopenharmony_ci| boolean [tunneledMode_](#tunneledmode_) | 隧道模式，值为true时开启，false关闭。 开启隧道模式后，HAL不直接和上层交互，通过图形提供的生产者句柄来传递帧数据， 对于一些IOT设备，可能不需要或者不支持预览流的图像数据缓存流转，此时需要关闭隧道模式。 | 27e41f4b71Sopenharmony_ci| BufferProducerSequenceable [bufferQueue_](#bufferqueue_) | 图形提供的生产者句柄。 | 28e41f4b71Sopenharmony_ci| int [minFrameDuration_](#minframeduration_) | 最小帧间隔。 | 29e41f4b71Sopenharmony_ci| enum [EncodeType](_camera_v10.md#encodetype)[encodeType_](#encodetype_) | 编码类型。 | 30e41f4b71Sopenharmony_ci 31e41f4b71Sopenharmony_ci 32e41f4b71Sopenharmony_ci## 类成员变量说明 33e41f4b71Sopenharmony_ci 34e41f4b71Sopenharmony_ci 35e41f4b71Sopenharmony_ci### bufferQueue_ 36e41f4b71Sopenharmony_ci 37e41f4b71Sopenharmony_ci``` 38e41f4b71Sopenharmony_ciBufferProducerSequenceable StreamInfo::bufferQueue_ 39e41f4b71Sopenharmony_ci``` 40e41f4b71Sopenharmony_ci**描述** 41e41f4b71Sopenharmony_ci 42e41f4b71Sopenharmony_ci图形提供的生产者句柄。 43e41f4b71Sopenharmony_ci 44e41f4b71Sopenharmony_ci 45e41f4b71Sopenharmony_ci### dataspace_ 46e41f4b71Sopenharmony_ci 47e41f4b71Sopenharmony_ci``` 48e41f4b71Sopenharmony_ciint StreamInfo::dataspace_ 49e41f4b71Sopenharmony_ci``` 50e41f4b71Sopenharmony_ci**描述** 51e41f4b71Sopenharmony_ci 52e41f4b71Sopenharmony_ci图像颜色空间。 53e41f4b71Sopenharmony_ci 54e41f4b71Sopenharmony_ci 55e41f4b71Sopenharmony_ci### encodeType_ 56e41f4b71Sopenharmony_ci 57e41f4b71Sopenharmony_ci``` 58e41f4b71Sopenharmony_cienum EncodeType StreamInfo::encodeType_ 59e41f4b71Sopenharmony_ci``` 60e41f4b71Sopenharmony_ci**描述** 61e41f4b71Sopenharmony_ci 62e41f4b71Sopenharmony_ci编码类型。 63e41f4b71Sopenharmony_ci 64e41f4b71Sopenharmony_ci 65e41f4b71Sopenharmony_ci### format_ 66e41f4b71Sopenharmony_ci 67e41f4b71Sopenharmony_ci``` 68e41f4b71Sopenharmony_ciint StreamInfo::format_ 69e41f4b71Sopenharmony_ci``` 70e41f4b71Sopenharmony_ci**描述** 71e41f4b71Sopenharmony_ci 72e41f4b71Sopenharmony_ci图像格式。 73e41f4b71Sopenharmony_ci 74e41f4b71Sopenharmony_ci 75e41f4b71Sopenharmony_ci### height_ 76e41f4b71Sopenharmony_ci 77e41f4b71Sopenharmony_ci``` 78e41f4b71Sopenharmony_ciint StreamInfo::height_ 79e41f4b71Sopenharmony_ci``` 80e41f4b71Sopenharmony_ci**描述** 81e41f4b71Sopenharmony_ci 82e41f4b71Sopenharmony_ci图像高度。 83e41f4b71Sopenharmony_ci 84e41f4b71Sopenharmony_ci 85e41f4b71Sopenharmony_ci### intent_ 86e41f4b71Sopenharmony_ci 87e41f4b71Sopenharmony_ci``` 88e41f4b71Sopenharmony_cienum StreamIntent StreamInfo::intent_ 89e41f4b71Sopenharmony_ci``` 90e41f4b71Sopenharmony_ci**描述** 91e41f4b71Sopenharmony_ci 92e41f4b71Sopenharmony_ci流类型。 93e41f4b71Sopenharmony_ci 94e41f4b71Sopenharmony_ci 95e41f4b71Sopenharmony_ci### minFrameDuration_ 96e41f4b71Sopenharmony_ci 97e41f4b71Sopenharmony_ci``` 98e41f4b71Sopenharmony_ciint StreamInfo::minFrameDuration_ 99e41f4b71Sopenharmony_ci``` 100e41f4b71Sopenharmony_ci**描述** 101e41f4b71Sopenharmony_ci 102e41f4b71Sopenharmony_ci最小帧间隔。 103e41f4b71Sopenharmony_ci 104e41f4b71Sopenharmony_ci 105e41f4b71Sopenharmony_ci### streamId_ 106e41f4b71Sopenharmony_ci 107e41f4b71Sopenharmony_ci``` 108e41f4b71Sopenharmony_ciint StreamInfo::streamId_ 109e41f4b71Sopenharmony_ci``` 110e41f4b71Sopenharmony_ci**描述** 111e41f4b71Sopenharmony_ci 112e41f4b71Sopenharmony_ci流的ID，用于在设备内唯一标识一条流。 113e41f4b71Sopenharmony_ci 114e41f4b71Sopenharmony_ci 115e41f4b71Sopenharmony_ci### tunneledMode_ 116e41f4b71Sopenharmony_ci 117e41f4b71Sopenharmony_ci``` 118e41f4b71Sopenharmony_ciboolean StreamInfo::tunneledMode_ 119e41f4b71Sopenharmony_ci``` 120e41f4b71Sopenharmony_ci**描述** 121e41f4b71Sopenharmony_ci 122e41f4b71Sopenharmony_ci隧道模式，值为true时开启，false关闭。 开启隧道模式后，HAL不直接和上层交互，通过图形提供的生产者句柄来传递帧数据， 对于一些IOT设备，可能不需要或者不支持预览流的图像数据缓存流转，此时需要关闭隧道模式。 123e41f4b71Sopenharmony_ci 124e41f4b71Sopenharmony_ci 125e41f4b71Sopenharmony_ci### width_ 126e41f4b71Sopenharmony_ci 127e41f4b71Sopenharmony_ci``` 128e41f4b71Sopenharmony_ciint StreamInfo::width_ 129e41f4b71Sopenharmony_ci``` 130e41f4b71Sopenharmony_ci**描述** 131e41f4b71Sopenharmony_ci 132e41f4b71Sopenharmony_ci图像宽度。 133