---
title: hi_venc_ref_type
description: "定义H.264跳帧参考码流的帧类型和参考属性，暂不支持。"
url: https://www.hiascend.com/document/detail/zh/Atlas200IDKA2DeveloperKit/latest/Application%20Development%20Guide/aadgc/aclcppdevg_03_1483.html
sourcePath: /source/zh/Atlas200IDKA2DeveloperKit/23.0.RC2/Application Development Guide/aadgc/aclcppdevg_03_1483.html
indexId: b52defd1e11d25bfc846cd730c43c159b17445a37ddc2f1c84f95bfc96625077105
---
# hi_venc_ref_type

#### 说明

定义H.264跳帧参考码流的帧类型和参考属性，暂不支持。


#### 定义

```
typedef enum {
HI_VENC_BASE_IDR_SLICE = 0,
HI_VENC_BASE_P_SLICE_REF_TO_IDR,
HI_VENC_BASE_P_SLICE_REF_BY_BASE,
HI_VENC_BASE_P_SLICE_REF_BY_ENHANCE,
HI_VENC_ENHANCE_P_SLICE_REF_BY_ENHANCE,
HI_VENC_ENHANCE_P_SLICE_NOT_FOR_REF,
HI_VENC_P_SLICE_BUTT
} hi_venc_ref_type;
```