====== VIM3/3L Hardware Encoding ======

===== Introduction =====

This document mainly introduces Hardware Encoding. You will learn how to use **h264** encoding and **h265** encoding.

===== System Configuration =====

Please make sure you use the latest image, if not please follow [[/products/sbc/common/configurations/upgrade-system|Upgrade The System]] to upgrade your system.

===== For Linux with 5.15 kernel =====

Please check [[products:sbc:vim4:applications:hardware-encoding| Hardware Encoding]].

===== For Linux with 4.9 kernel =====

==== H264 Hardware Encoding ====

```shell
$ h264EncoderDemo  1080p.nv21    1080p.h264 1920 1080 10 30 2000000 2000 1
```
The encoded file is ''1080p.h264''.

<WRAP info >
Get help information
```shell
$ h264EncoderDemo
Amlogic AVC Encode API
 usage: output [srcfile][outfile][width][height][gop][framerate][bitrate][num][fmt]
  options  :
  srcfile  : yuv data url in your root fs
  outfile  : stream url in your root fs
  width    : width
  height   : height
  gop      : I frame refresh interval
  framerate: framerate
   bitrate  : bit rate
   num      : encode frame count
   fmt      : encode input fmt 0:nv12 1:nv21 2:yv12 3:rgb888 4:bgr888
```
</WRAP>

==== H265 Hardware Encoding ====

```shell
$ h265EncoderDemo  1080p.nv21   1080p.h265  1920 1080 0 30 1000000 2000 0
```
The encoded file is ''1080p.h265''.

<WRAP info >
Get help information
```shell
$ h265EncoderDemo
Amlogic AVC Encode API
 usage: output [srcfile][outfile][width][height][gop][framerate][bitrate][num]
  options  :
  srcfile  : yuv data url in your root fs
  outfile  : stream url in your root fs
  width    : width
  height   : height
  gop      : I frame refresh interval
  framerate: framerate
   bitrate  : bit rate
   num      : encode frame count
   fmt      : encode input fmt 0:nv21, 1:nv12, 2:RGB888
```
</WRAP>


==== Library Source Code ====

[[gh>numbqq/encoder_libs_aml]]