## 列出 hardware acceleration
```bash
$ ffmpeg -hide_banner -hwaccels
Hardware acceleration methods:
cuda
dxva2
qsv
d3d11va
opencl
vulkan
```

## 列出 codec
```bash
$ ffmpeg -hide_banner -codecs
Codecs:
 D..... = Decoding supported
 .E.... = Encoding supported
 ..V... = Video codec
 ..A... = Audio codec
 ..S... = Subtitle codec
 ...I.. = Intra frame-only codec
 ....L. = Lossy compression
 .....S = Lossless compression
 -------
 D.VI.S 012v                 Uncompressed 4:2:2 10-bit
 D.V.L. 4xm                  4X Movie
 D.VI.S 8bps                 QuickTime 8BPS video
 .EVIL. a64_multi            Multicolor charset for Commodore 64 (encoders: a64multi )
 .EVIL. a64_multi5           Multicolor charset for Commodore 64, extended with 5th color (colram) (encoders: a64multi5 )
 D.V..S aasc                 Autodesk RLE
```

### 只列出 encoder 或是 decoder
```bash
ffmpeg -hide_banner -encoders
ffmpeg -hide_banner -decoders
```

### 列出某個 encoder 或 decoder 的詳細資料
```bash
$ ffmpeg -hide_banner -h encoder=<codec_name>
or
$ ffmpeg -hide_banner -h decoder=<codec_name>
```