MP3 Cli

[中文]

1、Function overview

In order to facilitate the verification of the function of MP3 decoding, a series of cli CMDs are designed, mainly including reading MP3 files from SDCARD for decoding and decoding and playing. Whether the current cli command takes effect is determined by the macro CLI_CFG_MP3. The macro control location is in the components\bk_cli\cli_config.h file, whether the macro takes effect is determined by the internal macro CONFIG_AUDIO_MP3_TEST。

2、Code path

path: components\demos\media\audio\mp3\mp3_demo.c

3、Cli command introduction

The supported CMDs are as follows:

1.mp3_decode_test

• Function Description

  Used to test the MP3 decoding function, and store the decoded PCM files in SDcard.

• CMD Format

  mp3_decode_test param1 param2 param3

  Param	value
  param1	start / stop
  param2	mp3 file fromat: xxx.mp3
  param3	pcm file fromat: xxx.pcm

• Test Case

  Start decoding and storing PCM files: mp3_decode_test start qingtian.mp3 qingtian.pcm

  Close the test file and release resources: mp3_decode_test stop qingtian.mp3 qingtian.pcm

2.mp3_play_test

• Function Description

  Used to test the function of MP3 decoding and real-time playback (Use audio driver basic API).

• CMD Format

  mp3_play_test param1 param2

  Param	value
  param1	start / stop
  param2	mp3 file format: xxx.mp3

• Test Case

  Start decoding and play in real time：mp3_play_test start qingtian.mp3

  Close the test file and release resources: mp3_play_test stop qingtian.mp3

3.aud_intf_mp3_play_test

• Function Description

  Used to test the function of MP3 decoding and real-time playback (Use aud_intf basic API).

• CMD Format

  aud_intf_mp3_play_test param1 param2

  Param	value
  param1	start / stop
  param2	mp3 file format: xxx.mp3

• Test Case

  Start decoding and play in real time: aud_intf_mp3_play_test start qingtian.mp3

  Close the test file and release resources: aud_intf_mp3_play_test stop qingtian.mp3