# Multimedia Applications

This chapter mainly introduces the audio and video playback methods for the **Quectel Pi M1 / L1** smart control board.

# Preparation

1. Please refer to the [MIPI](<../../../User Guide/Display/MIPI/MIPI.md>) section to complete the display configuration.

2. Please refer to the [Audio](<../../../User Guide/Audio/Audio.md>) section to connect headphones.

# Audio Playback

Before playing audio, please first push the corresponding audio file to the development board.  
  
Open the **ADB** tool, connect to the development board, and open the **ADB** terminal. Use the **adb push** command to push the audio file to the development board.

```shell
adb push E:\eage\test.mp3 /sdcard/Music #Push audio to the DCIM directory on the development board's SD card#Enter the development boardsu    #Switch to root user
am broadcast -a android.intent.action.MEDIA_SCANNER_SCAN_FILE -d file:///sdcard/Music/test.mp3     #Rescan this file in the media library
```

The **Android** system comes with a pre-installed **Music** player. You can play audio by following these steps:

1. Open the **Music** player;

```{image} images/image_Stx8bV0G6ohPWYx13nlcjnArnzf.webp
:width: 856px
:height: 480px
```

2. Click the left option panel to search for songs;

```{image} images/image_GNWCb0ggtoJrqAxU8udcbUdWnvf.webp
:width: 856px
:height: 480px
```

3. Find the audio file and click to play.

```{image} images/image_QEoEbrPwsoQEwOx7zyXchh14nIc.webp
:width: 856px
:height: 480px
```

# Video Playback

Before playing video, please first push the corresponding video file to the development board.  
  
Open the **ADB** tool, connect to the development board, and open the **ADB** terminal. Use the **adb push** command to push the video file to the development board.

```shell
adb push "E:\FeiShu\Animal World.mp4" /sdcard/DCIM     #Push the relevant video to the DCIM directory on the development board's SD card#Enter the development boardsu    #Switch to root user
am broadcast -a android.intent.action.MEDIA_SCANNER_SCAN_FILE -d file:///sdcard/DCIM/Animal World.mp4    #Rescan this file in the media library
```

The **Android** system comes with a pre-installed **Gallery**. You can play video files by following these steps:

1. Click the corresponding icons in sequence to enter the file manager;

```{image} images/image_OyE2bpV50oYVpUxQA5pcYn7ynte.webp
:width: 856px
:height: 480px
```

```{image} images/image_KlvUbbsB1o3TuFxNBDec2JlBnxp.webp
:width: 856px
:height: 480px
```

2. Find the video file and double-click to play.

```{image} images/image_Cp7Rbv6rcop2a2xnfKdc4vDgnih.webp
:width: 856px
:height: 488px
```