---
title: 推荐编码参数
description: "针对输入的test.yuv为1080p场景，恒定码率编码（帧率为$fps，码率为$bitrate）为推荐编码参数。"
url: https://www.hikunpeng.com/document/detail/zh/boostmedia/hw265/kunpengcps_hw265enc_06_0014.html
sourcePath: /source/zh/boostmedia/hw265/kunpengcps_hw265enc_06_0014.html
indexId: 2a3feede60365badda7f9031eae853734788fd8fbd47752b998734b545dcb14c60
---
# 推荐编码参数

针对输入的test.yuv为1080p场景，恒定码率编码（帧率为$fps，码率为$bitrate）为推荐编码参数。

- 低时延

```
./bin/CloudHw265App -c
~
/dependency/lib/cfg/hw265_encoder.cfg -preset 6 -w 1920 -h 1080 -rc 0 -br $bitrate -pass 0 -fps_num $fps -fps_den 1 -timebase_den $fps -timebase_num 1 -keyInt $fps*2 -adap_i 0 -bframes 0 -delay 1 -FrmThreadNum 4 -WppThreadNum 4 -LookAheadThreads 3 -i test.yuv -b test.265
```


- 高清

```
./bin/CloudHw265App -c
~
/dependency/lib/cfg/hw265_encoder.cfg -preset 6 -w 1920 -h 1080 -rc 0 -br $bitrate -pass 0 -fps_num $fps -fps_den 1 -timebase_den $fps -timebase_num 1 -keyInt $fps*2 -adap_i 0 -bframes 3 -delay 4 -FrmThreadNum 4 -WppThreadNum 4 -LookAheadThreads 3 -i test.yuv -b test.265
```


- 点播

```
./bin/CloudHw265App -c
~
/dependency/lib/cfg/hw265_encoder.cfg -preset 2 -w 1920 -h 1080 -rc 0 -br $bitrate -pass 0 -fps_num $fps -fps_den 1 -timebase_den $fps -timebase_num 1 -keyInt $fps*2 -adap_i 1 -bframes 7 -delay 25 -FrmThreadNum 4 -WppThreadNum 4 -LookAheadThreads 3 -i test.yuv -b test.265
```


- 无编码场景要求

```
./bin/CloudHw265App -c
~
/dependency/lib/cfg/hw265_encoder.cfg -preset 6 -w 1920 -h 1080 -rc 0 -br $bitrate -pass 0 -fps_num $fps -fps_den 1 -timebase_den $fps -timebase_num 1 -keyInt $fps*2 -adap_i 0 -bframes 3 -delay 4 -FrmThreadNum 4 -WppThreadNum 4 -LookAheadThreads 3 -i test.yuv -b test.265
```


- 开启HDR10功能（不支持HDR vivid）

```
./bin/CloudHw265App_10bit -c
~
/dependency/lib/cfg/hw265_encoder.cfg -preset 6 -w 1920 -h 1080 -rc 0 -br $bitrate -pass 0 -fps_num $fps -fps_den 1 -timebase_den $fps -timebase_num 1 -keyInt $fps*2 -adap_i 0 -bframes 3 -delay 4 -FrmThreadNum 4 -WppThreadNum 4 -LookAheadThreads 3 -hdrMode 1 -max-cll 1000 -max-fall 300 -primaries-x0 8500 -primaries-y0 39850 -primaries-x1 6550 -primaries-y1 2300 -primaries-x2 35400 -primaries-y2 14600 -white-x 15630 -white-y 16450 -max-luminance 10000000 -min-luminance 1 -atc-sei 2  -color_p 9  -transfer 16 -col_matrix 9 -fullrange 1 -i test.yuv -b test.265
```


  如需按HDR10标准编码视频，请参见表1进行参数配置。

**表1 参数说明**

| 参数名称 | 参数含义 | 固定标准值 |
| --- | --- | --- |
| \-atc\-sei 2 | transfer | 2 |
| \-transfer 16 | 传输特性（SMPTE2084） | 16 |
| \-color\_p 9 | 原色（BT.2020） | 9 |
| \-col\_matrix 9 | 矩阵系数（BT2020NC） | 9 |
| \-repeatHeaders 0 | 不重复头信息 | 0 |