# 结构体

* **[OH_AVMetadataBuilderStruct](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-ohavsession-oh-avmetadatabuilderstruct)**   
* **[OH_AVMetadataStruct](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-ohavsession-oh-avmetadatastruct)**   
* **[AVSession_PlaybackPosition](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-ohavsession-avsession-playbackposition)**   
* **[OH_AVSession](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-ohavsession-oh-avsession)**   
* **[OH_AVCastController](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-ohavsession-oh-avcastcontroller)**   
* **[OH_AVSession_AVPlaybackState](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-ohavsession-oh-avsession-avplaybackstate)**   
* **[OH_AVSession_AVQueueItem](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-ohavsession-oh-avsession-avqueueitem)**   
* **[OH_AVSession_AVMediaDescription](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-ohavsession-oh-avsession-avmediadescription)**   
* **[OH_AVSession_AVMediaDescriptionBuilder](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-ohavsession-oh-avsession-avmediadescriptionbuilder)**   
* **[AVSession_OutputDeviceInfo](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-ohavsession-avsession-outputdeviceinfo)**   
* **[AVSession_DeviceInfo](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-ohavsession-avsession-deviceinfo)**