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luckfox-pico-sdk/sysdrv/source/mcu/rt-thread/applications/lvgl_demo/music
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luckfox-eng29 8f34c2760d project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches. 
project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between
the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door
for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more
usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp:
Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for
compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem.
sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device
tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately.
sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick
boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades.
sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for
fastboot.

Signed-off-by: luckfox-eng29 <eng29@luckfox.com>
2024-10-14 09:47:04 +08:00
..
assets project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches. 2024-10-14 09:47:04 +08:00
lv_demo_music_list.c project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches. 2024-10-14 09:47:04 +08:00
lv_demo_music_list.h project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches. 2024-10-14 09:47:04 +08:00
lv_demo_music_main.c project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches. 2024-10-14 09:47:04 +08:00
lv_demo_music_main.h project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches. 2024-10-14 09:47:04 +08:00
lv_demo_music.c project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches. 2024-10-14 09:47:04 +08:00
lv_demo_music.h project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches. 2024-10-14 09:47:04 +08:00
README.md project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches. 2024-10-14 09:47:04 +08:00
screenshot1.gif project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches. 2024-10-14 09:47:04 +08:00

README.md

Music player demo

Overview

The music player demo shows what kind of modern, smartphone-like user interfaces can be created on LVGL. It works the best with display with 480x272 or 272x480 resolution.

Music player demo with LVGL embedded GUI library

Run the demo

  • In lv_conf.h or equivalent places set LV_USE_DEMO_MUSIC 1
  • With LV_DEMO_MUSIC_AUTO_PLAY enabled a ~60 sec demo will be played.
  • After lv_init() and initializing the drivers call lv_demo_music()

How the spectrum animation works

  • assets/spectrum.py creates an array of spectrum values from a music. 4 band are created with 33 samples/sec: bass, bass-mid, mid, mid-treble.
  • The spectrum meter UI does the followings:
    • Zoom the album cover proportionality to the current bass value
    • Display the 4 bands on the left side of a circle by default at 0°, 45°, 90°, 135°
    • Add extra bars next to the "main bars" with a cosine shape. Add more bars for the lower bands.
    • If there is a large enough bass, add a random offset to the position of the bars. E.g. start from 63° instead of 0°. (bars greater than 180° start again from 0°)
    • If there is no bass, add 1 to the offset of the bars (it creates a "walking" effect)
    • Mirror the bars to the right side of the circle

Using spectrum.py

  • install librosa with pip3 install librosa
  • run python sectrum.py my_file.mp3
  • see the result in spectrum.h