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midi2mp3-api

REST API (Docker, PHP, Slim, FluidSynth, Lame) for MIDI to MP3 convertion.

Prerequisite

Start

Installation

composer install

Build

docker image build -t midi2mp3-api .

Run

docker run -p 80:80 midi2mp3-api

API Usage

Endpoint http://[docker-machine]/info

Request

  • Verb : GET
  • No parameter

Response

  • Content-Type : Application/json
{
  "apiName": "midi2mp3",
  "version": "1",
  "description": "Midi to MP3 Convertion"
}

Endpoint http://[docker-machine]/convert

Request

  • Verb : POST
  • Content-Type : Application/json
  • Parameters : -- midiData : Base64 encoded Midi file
{
  "midiData": "TVRoZAAAAAYAAQACAYBNVHJrAAAAUwD/Aw1jb250cm.....AP8BC"
}

Response

  • Content-Type : Application/json
{
  "statusCode": "OK|ERROR",
  "message": "Information complement on error",
  "base64Mp3Data": "oAsAdkAJA8WoMAkDwAAJA+WoMAkD4AAJBAWoMAkEAAAJB....vAA==",
  "logs": [
    {
      "title": "FluidSynth : midi -> wav convertion",
      "content": "FluidSynth log details"
    },
    {
      "title": "Lame : wav -> mp3 convertion",
      "content": "Lame log details"
    }
  ]
}

Also read

midi2mp3-api's People

Contributors

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Stargazers

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Watchers

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Forkers

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midi2mp3-api's Issues

Switch all API output to english

Expected behavior

ALL API output should be in english

Actual behavior

all fields are in english except 'message' and log.title

{
  "statusCode": "ENGLISH",
  "message": "FRENCH STUFF",
  "base64Mp3Data": "RAW DATA",
  "logs": [
    {
      "title": "FRENCH STUFF",
      "content": "ENGLISH"
    },
    {
      "title": "FRENCH STUFF",
      "content": "ENGLISH"
    }
  ]
}

Steps to reproduce the problem

  1. Run midi2mp3-api docker image
  2. POST the following JSON to http://[docker-machine]/convert
{
  "midiData": "TVRoZAAAAAYAAQACAYBNVHJrAAAAUwD/Aw1jb250cmAP8BC",
  "soundfont": "bagpipes"
}

Same problem with the /info endpoint

{
   "apiName":"midi2mp3",
   "version":"1",
   "description":"FRENCH STUFF"
}

Generated MP3 file has no sound

Expected behavior

Generated MP3 shoud sound like the midi file ....

Actual behavior

The WAV file is produced, duration seems good but it has no sound at all.
MP3 file is produced from WAV, it does not have any chance to produce any sound.

Steps to reproduce the problem

  1. Run midi2mp3
  2. POST the following json to the /convert endpoint
{
  "midiData": "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",
  "soundfont": "bagpipes"
}
  1. Enter runing container and get sessionId path for this convertion
docker ps
docker exec -it [containerID] bash
ls /tmp/midi2mp3
exit
  1. Extract audio file to host
docker cp [containerID]:/tmp/midi2mp3/[sessionId]/[sessionId].midi test.midi
docker cp [containerID]:/tmp/midi2mp3/[sessionId]/[sessionId].wav test.wav
docker cp [containerID]:/tmp/midi2mp3/[sessionId]/[sessionId].mp3 test.mp3

Possible solution

FluidSynth log file can be found in the same tmp directory as the audio files.
It may have something to do with the soundfont.

fluidsynth: warning: Failed to pin the sample data to RAM; swapping is possible.
fluidsynth: warning: No preset found on channel 0 [bank=0 prog=0]
fluidsynth: warning: No preset found on channel 1 [bank=0 prog=0]
fluidsynth: warning: No preset found on channel 2 [bank=0 prog=0]
fluidsynth: warning: No preset found on channel 3 [bank=0 prog=0]
fluidsynth: warning: No preset found on channel 4 [bank=0 prog=0]
fluidsynth: warning: No preset found on channel 5 [bank=0 prog=0]
fluidsynth: warning: No preset found on channel 6 [bank=0 prog=0]
fluidsynth: warning: No preset found on channel 7 [bank=0 prog=0]
fluidsynth: warning: No preset found on channel 8 [bank=0 prog=0]
fluidsynth: warning: No preset found on channel 9 [bank=128 prog=0]
fluidsynth: warning: No preset found on channel 10 [bank=0 prog=0]
fluidsynth: warning: No preset found on channel 11 [bank=0 prog=0]
fluidsynth: warning: No preset found on channel 12 [bank=0 prog=0]
fluidsynth: warning: No preset found on channel 13 [bank=0 prog=0]
fluidsynth: warning: No preset found on channel 14 [bank=0 prog=0]
fluidsynth: warning: No preset found on channel 15 [bank=0 prog=0]
FluidSynth version 1.1.6
Copyright (C) 2000-2012 Peter Hanappe and others.
Distributed under the LGPL license.
SoundFont(R) is a registered trademark of E-mu Systems, Inc.

Rendering audio to file '/tmp/midi2mp3/5a9e1ba723ab9/5a9e1ba723ab9.wav'..

Info endpoint should return fluidsynth and lame version

Expected behavior

{
  "apiName": "midi2mp3",
  "description": "Midi to MP3 Convertion",
  "version": {
    "api": "1.1",
    "fluildsynth": "1.18",
    "lame": "2.3"
  }
}

Actual behavior

{
  "apiName": "midi2mp3",
  "version": "1",
  "description": "Midi to MP3 Convertion"
}

Steps to reproduce the problem

  1. Run midi2mp3-api
  2. go to info endpoint : http://[docker-machine]/info

Temporary data is not deleted

Expected behavior

Temporary data should be deleted after it has been send to client.

Actual behavior

Temporary data is never removed.

Steps to reproduce the problem

  1. Send a valid request to the convert EndPoint
    2.Enter container running midi2mp3-api
    3.Look in /tmp/midi2mp3

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