├── .github └── workflows │ └── pypi.yml ├── .gitignore ├── LICENSE ├── README.md ├── assets └── example.gif ├── build.py ├── build.sh ├── example.mp4 ├── piano_visualizer └── __init__.py ├── publish.py ├── requirements.txt └── setup.py /.github/workflows/pypi.yml: -------------------------------------------------------------------------------- 1 | name: PyPI publish 2 | 3 | on: 4 | release: 5 | types: [published] 6 | 7 | jobs: 8 | build-n-publish: 9 | name: Build python package 10 | runs-on: ubuntu-latest 11 | 12 | steps: 13 | - uses: actions/checkout@v2 14 | 15 | - name: Setup 16 | run: pip3 install setuptools wheel twine 17 | 18 | - name: Build 19 | env: 20 | PYPI_VERSION: ${{ github.ref }} 21 | run: python3 setup.py bdist_wheel sdist 22 | 23 | - name: Upload 24 | env: 25 | TWINE_USERNAME: __token__ 26 | TWINE_PASSWORD: ${{ secrets.PYPI_API_TOKEN }} 27 | run: twine upload dist/* 28 | 29 | - name: Clean up 30 | run: rm -rf dist build module.egg-info 31 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Byte-compiled / optimized / DLL files 2 | __pycache__/ 3 | *.py[cod] 4 | *$py.class 5 | 6 | # C extensions 7 | *.so 8 | 9 | # Distribution / packaging 10 | .Python 11 | build/ 12 | develop-eggs/ 13 | dist/ 14 | downloads/ 15 | eggs/ 16 | .eggs/ 17 | lib/ 18 | lib64/ 19 | parts/ 20 | sdist/ 21 | var/ 22 | wheels/ 23 | pip-wheel-metadata/ 24 | share/python-wheels/ 25 | *.egg-info/ 26 | .installed.cfg 27 | *.egg 28 | MANIFEST 29 | 30 | # PyInstaller 31 | # Usually these files are written by a python script from a template 32 | # before PyInstaller builds the exe, so as to inject date/other infos into it. 33 | *.manifest 34 | *.spec 35 | 36 | # Installer logs 37 | pip-log.txt 38 | pip-delete-this-directory.txt 39 | 40 | # Unit test / coverage reports 41 | htmlcov/ 42 | .tox/ 43 | .nox/ 44 | .coverage 45 | .coverage.* 46 | .cache 47 | nosetests.xml 48 | coverage.xml 49 | *.cover 50 | *.py,cover 51 | .hypothesis/ 52 | .pytest_cache/ 53 | 54 | # Translations 55 | *.mo 56 | *.pot 57 | 58 | # Django stuff: 59 | *.log 60 | local_settings.py 61 | db.sqlite3 62 | db.sqlite3-journal 63 | 64 | # Flask stuff: 65 | instance/ 66 | .webassets-cache 67 | 68 | # Scrapy stuff: 69 | .scrapy 70 | 71 | # Sphinx documentation 72 | docs/_build/ 73 | 74 | # PyBuilder 75 | target/ 76 | 77 | # Jupyter Notebook 78 | .ipynb_checkpoints 79 | 80 | # IPython 81 | profile_default/ 82 | ipython_config.py 83 | 84 | # pyenv 85 | .python-version 86 | 87 | # pipenv 88 | # According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control. 89 | # However, in case of collaboration, if having platform-specific dependencies or dependencies 90 | # having no cross-platform support, pipenv may install dependencies that don't work, or not 91 | # install all needed dependencies. 92 | #Pipfile.lock 93 | 94 | # PEP 582; used by e.g. github.com/David-OConnor/pyflow 95 | __pypackages__/ 96 | 97 | # Celery stuff 98 | celerybeat-schedule 99 | celerybeat.pid 100 | 101 | # SageMath parsed files 102 | *.sage.py 103 | 104 | # Environments 105 | .env 106 | .venv 107 | env/ 108 | venv/ 109 | ENV/ 110 | env.bak/ 111 | venv.bak/ 112 | 113 | # Spyder project settings 114 | .spyderproject 115 | .spyproject 116 | 117 | # Rope project settings 118 | .ropeproject 119 | 120 | # mkdocs documentation 121 | /site 122 | 123 | # mypy 124 | .mypy_cache/ 125 | .dmypy.json 126 | dmypy.json 127 | 128 | # Pyre type checker 129 | .pyre/ 130 | 131 | .vscode -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # piano_visualizer 2 | 3 | A python library that allows you to export a video in which a piano is playing the music you give it. 4 | 5 | ![example gif](https://github.com/ArjunSahlot/piano_visualizer/blob/main/assets/example.gif?raw=true) 6 | 7 | ## Features 8 | 9 | - Export a video of a custom midi file 10 | - Easy interface 11 | - Multi-core export 12 | - Multiple piano support 13 | - Multiple midi support 14 | - Automatically generate audio for midi files 15 | 16 | ## How to 17 | 18 | `piano_visualizer` was built with the intent to for it to be simple to use. You can render a piano video with simply 4 lines of code! 19 | 20 | There are 2 main classes: `Piano` and `Video` 21 | `Piano` takes care of the piano rendering and the midi file parsing 22 | `Video` takes care of video management (fps, resolution) and exporting 23 | 24 | **INSTALL** 25 | `pip install piano_visualizer` 26 | 27 | Working in `example.py` 28 | 29 | ```py 30 | # Import the library after you have installed it 31 | import piano_visualizer 32 | 33 | # Create a piano with a midi file(s) 34 | piano = piano_visualizer.Piano(["/path/to/your/midi/file.mid"]) 35 | 36 | # Create a video with resolution/fps 37 | video = piano_visualizer.Video((1920, 1080), 30) 38 | 39 | # Add piano to video 40 | video.add_piano(piano) 41 | 42 | # Export video on multiple cores (1 for single) 43 | video.export("your/export/path.mp4", num_cores=6) 44 | 45 | # You can add music too! (although it is sometimes offset from video) 46 | # video.export("your/export/path.mp4", num_cores=6, music=True) 47 | 48 | # Progress bars should show up 49 | # Once your video is exported it will be at the path you specified! 50 | ``` 51 | 52 | NOTE: For music to work, you need [fluidsynth](https://github.com/FluidSynth/fluidsynth/wiki/Download) 53 | -------------------------------------------------------------------------------- /assets/example.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ArjunSahlot/piano_visualizer/395c60ae6ae0c526957cfc1e6f72bb6f30cd1d10/assets/example.gif -------------------------------------------------------------------------------- /build.py: -------------------------------------------------------------------------------- 1 | import os 2 | import sys 3 | import zipfile 4 | import urllib.request 5 | from tkinter import Tk 6 | from tkinter.filedialog import askdirectory 7 | Tk().withdraw() 8 | 9 | print("Choose installation location.") 10 | dir = askdirectory() 11 | tmp = os.path.join(dir, "tmp") 12 | file = "piano_visualizer-" 13 | print("Installing...") 14 | try: 15 | urllib.request.urlretrieve("https://github.com/ArjunSahlot/piano_visualizer/archive/main.zip", tmp) 16 | file += "main" 17 | except urllib.error.HTTPError: 18 | urllib.request.urlretrieve("https://github.com/ArjunSahlot/piano_visualizer/archive/master.zip", tmp) 19 | file += "master" 20 | 21 | print("Unzipping") 22 | with zipfile.ZipFile(tmp, 'r') as zip: 23 | zip.extractall(dir) 24 | 25 | print("Cleaning up") 26 | final = os.path.join(dir, file.split("-")[0]) 27 | os.rename(os.path.join(dir, file), final) 28 | os.remove(os.path.join(tmp)) 29 | 30 | with open(os.path.join(final, "requirements.txt"), "r") as f: 31 | packages = f.read().split("\n") 32 | 33 | if sys.platform == "windows": 34 | cmd = "pip install " 35 | else: 36 | cmd = "pip3 install " 37 | 38 | print("Installing packages") 39 | for package in packages: 40 | if "n" in input(f"Install" + package + "? [y/n] ").lower(): 41 | continue 42 | os.system(cmd.format(package)) 43 | 44 | print("Done!") 45 | -------------------------------------------------------------------------------- /build.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | download_link=https://github.com/ArjunSahlot/piano_visualizer/archive/main.zip 4 | temporary_dir=$(mktemp -d) 5 | echo "Checking if curl is installed" 6 | if [ $(sudo dpkg-query -l | grep curl | wc -l) -eq 0 ]; 7 | then 8 | echo -e "\033[0;31mcurl is not installed\033[0m" 9 | echo "Installing curl..." 10 | sudo apt install -y curl; 11 | echo -e "\033[0;32mcurl was successfully installed\033[0m" 12 | else 13 | echo -e "\033[0;32mcurl is already installed\033[0m" 14 | fi 15 | curl -LO $download_link \ 16 | && unzip -d $temporary_dir main.zip \ 17 | && rm -rf main.zip \ 18 | && mkdir -p $1 \ 19 | && cp -r $temporary_dir/piano_visualizer-main $1/piano_visualizer \ 20 | && rm -rf $temporary_dir \ 21 | && echo -e "\033[0;32mSuccessfully downloaded to $1/piano_visualizer\033[0m" \ 22 | && echo "Checking if pip is installed" 23 | if [ $(sudo dpkg-query -l | grep python3-pip | wc -l) -eq 0 ]; 24 | then 25 | echo -e "\033[0;31mpip is not installed\033[0m" \ 26 | && echo "Installing pip..." \ 27 | && sudo apt install -y python3-pip \ 28 | && echo -e "\033[0;32mpip was successfully installed\033[0m" 29 | else 30 | echo -e "\033[0;32mpip is already installed\033[0m" 31 | fi 32 | echo "Installing requirements" \ 33 | && cd $1/piano_visualizer \ 34 | && pip3 install -r requirements.txt \ 35 | && echo -e "\033[0;32mDone!\033[0m" 36 | -------------------------------------------------------------------------------- /example.mp4: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ArjunSahlot/piano_visualizer/395c60ae6ae0c526957cfc1e6f72bb6f30cd1d10/example.mp4 -------------------------------------------------------------------------------- /piano_visualizer/__init__.py: -------------------------------------------------------------------------------- 1 | # 2 | # Piano visualizer 3 | # A tool that allows you to export a video in which a piano is playing the music you give it. 4 | # Copyright Arjun Sahlot 2021 5 | # 6 | # This program is free software: you can redistribute it and/or modify 7 | # it under the terms of the GNU General Public License as published by 8 | # the Free Software Foundation, either version 3 of the License, or 9 | # (at your option) any later version. 10 | # 11 | # This program is distributed in the hope that it will be useful, 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | # GNU General Public License for more details. 15 | # 16 | # You should have received a copy of the GNU General Public License 17 | # along with this program. If not, see . 18 | # 19 | 20 | import os 21 | import cv2 22 | import pygame 23 | import shutil 24 | import time 25 | import mido 26 | import multiprocessing 27 | import ffmpeg 28 | from notifypy import Notify 29 | from midi2audio import FluidSynth 30 | from random_utils.colors.conversions import hsv_to_rgb 31 | from random_utils.funcs import crash 32 | from pydub import AudioSegment 33 | from tqdm import tqdm 34 | 35 | 36 | class Video: 37 | def __init__(self, resolution=(1920, 1080), fps=30, start_offset=0, end_offset=0): 38 | self.resolution = resolution 39 | self.fps = fps 40 | self.start_offset = start_offset 41 | self.end_offset = end_offset 42 | self.audio = ["default"] 43 | self.pianos = [] 44 | 45 | def add_piano(self, piano): 46 | self.pianos.append(piano) 47 | 48 | def set_audio(self, audio, overwrite=True): 49 | if overwrite: 50 | self.audio = [audio] 51 | else: 52 | self.audio.append(audio) 53 | 54 | def export(self, path, num_cores=4, music=False, notify=True, **kwargs): 55 | """ 56 | Export the video to the given path. 57 | 58 | :param path: destination to where the video will be 59 | :param num_cores: number of cores to use for exporting, defaults to 4 60 | :param music: whether or not you want music (it is usually not aligned with video unfortunately), defaults to False 61 | :param notify: notify the user through a system notification when exporting is done, defaults to True 62 | """ 63 | if "frac_frames" in kwargs: 64 | frac_frames = kwargs["frac_frames"] 65 | else: 66 | frac_frames = 1 67 | 68 | def quick_export(core, start, end): 69 | video = cv2.VideoWriter(os.path.join(export_dir, f"video{core}.mp4"), cv2.VideoWriter_fourcc( 70 | *"MPEG"), self.fps, self.resolution) 71 | for frame in range(start, end+1): 72 | with open(os.path.join(export_dir, f"frame{frame}"), "w"): 73 | pass 74 | surf = pygame.surfarray.pixels3d(self.render( 75 | frame-self.start_offset)).swapaxes(0, 1) 76 | video.write(surf) 77 | video.release() 78 | cv2.destroyAllWindows() 79 | 80 | pardir = os.path.realpath(os.path.dirname(__file__)) 81 | 82 | print("Parsing midis...") 83 | for i, piano in enumerate(self.pianos): 84 | piano.register(self.fps, self.start_offset) 85 | print(f"Piano {i+1} done") 86 | print("All pianos done.") 87 | 88 | min_frame, max_frame = min(self.pianos, key=lambda x: x.get_min_time()).get_min_time( 89 | ), max(self.pianos, key=lambda x: x.get_max_time()).get_max_time() 90 | 91 | max_frame = int(frac_frames * (max_frame - min_frame) + min_frame) 92 | frames = int(max_frame - min_frame) 93 | 94 | print("-"*50) 95 | print("Exporting video:") 96 | print(f" Resolution: {' by '.join(map(str, self.resolution))}") 97 | print(f" FPS: {self.fps}") 98 | print(f" Frames: {frames}") 99 | print( 100 | f" Duration: {int((frames+self.start_offset+self.end_offset)/self.fps)} secs\n") 101 | 102 | time_start = time.time() 103 | 104 | export_dir = os.path.join(pardir, "export") 105 | os.makedirs(export_dir, exist_ok=True) 106 | try: 107 | video = cv2.VideoWriter(os.path.join(export_dir, "video.mp4"), cv2.VideoWriter_fourcc( 108 | *"MPEG"), self.fps, self.resolution) 109 | if num_cores > 1: 110 | if num_cores >= multiprocessing.cpu_count(): 111 | print("High chance of computer freezing") 112 | core_input = input( 113 | f"Are you sure you want to use {num_cores}: ") 114 | try: 115 | num_cores = int(core_input) 116 | except ValueError: 117 | if "y" in core_input.lower(): 118 | print( 119 | "Piano Visualizer is not at fault if your computer freezes...") 120 | else: 121 | num_cores = int(input("New core count: ")) 122 | num_cores = min(num_cores, multiprocessing.cpu_count()) 123 | processes = [] 124 | curr_frame = 0 125 | frame_inc = (frames + self.start_offset + self.end_offset) / num_cores 126 | 127 | print( 128 | f"Exporting {int(frame_inc)} on each of {num_cores} cores...") 129 | 130 | for i in range(num_cores): 131 | p = multiprocessing.Process(target=quick_export, args=( 132 | i, int(curr_frame), int(curr_frame + frame_inc))) 133 | p.start() 134 | processes.append(p) 135 | 136 | curr_frame += frame_inc + 1 137 | 138 | time.sleep(.1) # Wait for all processes to start. 139 | 140 | with tqdm(total=frames, unit="frames", desc="Exporting") as t: 141 | p = 0 142 | while True: 143 | t.update((l := len(os.listdir(export_dir)))-p) 144 | p = l 145 | if l == frames: 146 | break 147 | 148 | for i, process in enumerate(processes): 149 | process.join() 150 | 151 | videos = [os.path.join( 152 | export_dir, f"video{c}.mp4") for c in range(num_cores)] 153 | with tqdm(total=frames+self.start_offset+self.end_offset+num_cores, unit="frames", desc="Concatenating") as t: 154 | for v in videos: 155 | curr_v = cv2.VideoCapture(v) 156 | while curr_v.isOpened(): 157 | r, frame = curr_v.read() 158 | if not r: 159 | break 160 | video.write(frame) 161 | t.update() 162 | 163 | else: 164 | for frame in tqdm(range(min_frame, max_frame + self.start_offset + self.end_offset + 1), desc="Exporting", unit="frames"): 165 | surf = pygame.surfarray.pixels3d(self.render( 166 | frame-self.start_offset)).swapaxes(0, 1) 167 | video.write(surf) 168 | 169 | video.release() 170 | cv2.destroyAllWindows() 171 | 172 | print(f"Finished in {round(time.time()-time_start, 3)} seconds.") 173 | print("Releasing video...") 174 | 175 | if music: 176 | millisecs = (frames + 1)/self.fps * 1000 177 | sounds = [] 178 | print("Creating music...") 179 | for audio_path in self.audio: 180 | if audio_path == "default": 181 | for i, piano in enumerate(self.pianos): 182 | sounds.extend(piano.gen_flac(export_dir, millisecs)) 183 | else: 184 | sounds.append(AudioSegment.from_file( 185 | audio_path, format=audio_path.split(".")[-1])[0:millisecs]) 186 | print("Created music.") 187 | 188 | print("Combining all audios into 1...") 189 | music_file = os.path.join(export_dir, "piano.flac") 190 | sound = sounds.pop(sounds.index(max(sounds, key=lambda x: len(x)))) 191 | for i in sounds: 192 | sound = sound.overlay(i) 193 | 194 | sound.export(music_file, format="flac") 195 | # Compress audio to length of video 196 | # new_sound = sound._spawn(sound.raw_data, overrides={"frame_rate": int(sound.frame_rate*(len(sound)/millisecs))}) 197 | # new_sound.set_frame_rate(sound.frame_rate) 198 | 199 | # new_sound.export(music_file, format="flac") 200 | print("Done") 201 | 202 | if self.start_offset or self.end_offset: 203 | print("Offsetting music...") 204 | s_silent = AudioSegment.silent( 205 | self.start_offset/self.fps * 1000) 206 | e_silent = AudioSegment.silent(self.end_offset/self.fps * 1000) 207 | (s_silent + AudioSegment.from_file(music_file, "flac") + e_silent).export(music_file, format="flac") 208 | print("Music offsetted successfully") 209 | 210 | print("Compiling video") 211 | video = ffmpeg.input(os.path.join(export_dir, "video.mp4")).video 212 | audio = ffmpeg.input(music_file).audio 213 | video = ffmpeg.output( 214 | video, audio, path, vcodec="copy", acodec="aac", strict="experimental") 215 | if os.path.isfile(path): 216 | os.remove(path) 217 | ffmpeg.run(video) 218 | else: 219 | print("Skipping music...") 220 | os.rename(os.path.join(export_dir, "video.mp4"), path) 221 | 222 | print(f"Video Done") 223 | print("Cleaning up...") 224 | 225 | except (Exception, KeyboardInterrupt) as e: 226 | print(f"Export interrupted due to {e}") 227 | shutil.rmtree(export_dir) 228 | if notify: 229 | notification = Notify() 230 | notification.title = "Piano Visualizer" 231 | notification.message = f"Export interrupted due to {e}" 232 | notification.send() 233 | crash() 234 | 235 | shutil.rmtree(export_dir) 236 | total_time = time.time()-time_start 237 | print( 238 | f"Finished exporting video in {total_time//60} mins and {round(total_time%60, 3)} secs.") 239 | print("-"*50) 240 | 241 | if notify: 242 | notification = Notify() 243 | notification.title = "Piano Visualizer" 244 | notification.message = f"Finished exporting {path.split('/')[-1]}" 245 | notification.send() 246 | 247 | def render(self, frame): 248 | surf = pygame.Surface(self.resolution, pygame.SRCALPHA) 249 | surf.fill((0, 0, 0, 0)) 250 | width, height = self.resolution 251 | max_height = height/5 252 | min_height = height/12 253 | whitekey_height = min(max_height, max( 254 | min_height, (height-100)/(len(self.pianos)+2))) 255 | blackkey_height = whitekey_height/2 256 | blackkey_width_factor = 3/4 257 | offset = height/len(self.pianos) 258 | p_height = offset 259 | p_width = width 260 | whitekey_width = width/(88*7/12) - 1 261 | 262 | for i, piano in enumerate(self.pianos): 263 | p_y = offset * i 264 | piano.render(surf, frame, p_y, p_width, p_height, whitekey_height, 265 | blackkey_height, whitekey_width, whitekey_width * blackkey_width_factor, 1) 266 | 267 | return surf 268 | 269 | 270 | class Piano: 271 | def __init__(self, midis=[], blocks=True, color="rainbow"): 272 | self.midis = list(midis) 273 | self.blocks = bool(blocks) 274 | self.block_speed = 200 275 | self.block_rounding = 5 276 | self.color = color.lower() 277 | self.notes = [] 278 | self.fps = None 279 | self.offset = None 280 | self.block_col = (255, 255, 255) 281 | self.white_hit_col = (255, 0, 0) 282 | self.white_col = (255, 255, 255) 283 | self.black_hit_col = (255, 0, 0) 284 | self.black_col = (0, 0, 0) 285 | 286 | def configure(self, datapath, value): 287 | if datapath in self.__dict__.keys(): 288 | setattr(self, datapath, value) 289 | 290 | def render_rect(self, surf, x, y, width, height, color): 291 | s = pygame.Surface((width, height), pygame.SRCALPHA) 292 | for cy in range(int(height+1)): 293 | pygame.draw.rect(s, list(color) + [255*((height-cy)/height)], (0, cy, width, 1)) 294 | surf.blit(s, (x, y)) 295 | 296 | def render(self, surf, frame, y, width, height, wheight, bheight, wwidth, bwidth, gap): 297 | counter = 0 298 | playing_keys = self.get_play_status(frame) 299 | black_keys = [] 300 | if self.blocks: 301 | self.render_blocks(surf, frame, y, width, height - wheight, wwidth, bwidth, gap) 302 | py = y + height - wheight 303 | surf.fill((0, 0, 0), (0, py, width, wheight)) 304 | 305 | for key in range(88): 306 | if self.is_black(key): 307 | x = (counter+1)*(wwidth + gap) - gap/2 - bwidth/2 308 | if key in playing_keys: 309 | color = self.get_rainbow( 310 | x, width) if self.color == "rainbow" else self.black_hit_col 311 | else: 312 | color = self.black_col 313 | black_keys.append( 314 | ((surf, self.black_col, (x, py, bwidth, bheight)), (surf, x, py, bwidth, bheight, color))) 315 | else: 316 | counter += 1 317 | x = counter*(wwidth + gap) 318 | if key in playing_keys: 319 | color = self.get_rainbow( 320 | x, width) if self.color == "rainbow" else self.white_hit_col 321 | else: 322 | color = self.white_col 323 | pygame.draw.rect(surf, self.white_col, (x, py, wwidth, wheight)) 324 | self.render_rect(surf, x, py, wwidth, wheight, color) 325 | 326 | for key in black_keys: 327 | pygame.draw.rect(*key[0]) 328 | self.render_rect(*key[1]) 329 | 330 | def render_blocks(self, surf, frame, y, width, height, wwidth, bwidth, gap): 331 | for note in self.notes: 332 | bottom = (frame - note["start"]) * \ 333 | self.block_speed / self.fps + y + height 334 | top = bottom - (note["end"] - note["start"]) * \ 335 | self.block_speed / self.fps 336 | if top <= y + height and bottom >= y: 337 | x = self.get_key_x(note["note"], wwidth, gap, bwidth) 338 | pygame.draw.rect(surf, self.get_rainbow(x, width) if self.color == "rainbow" else self.block_col, ( 339 | x, top, bwidth if self.is_black(note["note"]) else wwidth, bottom-top), border_radius=self.block_rounding) 340 | 341 | def get_key_x(self, key, wwidth, gap, bwidth): 342 | counter = 1 343 | 344 | for k in range(key): 345 | if not self.is_black(k): 346 | counter += 1 347 | 348 | if self.is_black(key): 349 | return counter*(wwidth + gap) - gap/2 - bwidth/2 350 | else: 351 | return counter*(wwidth + gap) 352 | 353 | def get_rainbow(self, x, width): 354 | return hsv_to_rgb(((x/width)*255, 255, 255)) 355 | 356 | def add_midi(self, path): 357 | self.midis.append(path) 358 | 359 | def parse_midis(self): 360 | self.notes = [] 361 | for mid in self.midis: 362 | midi = mido.MidiFile(mid) 363 | for track in midi.tracks: 364 | tempo = 500000 365 | frame = 0 366 | start_keys = [None] * 88 367 | for msg in track: 368 | frame += msg.time/midi.ticks_per_beat * tempo/1675000 * self.fps 369 | if msg.is_meta: 370 | if msg.type == "set_tempo": 371 | tempo = msg.tempo 372 | else: 373 | if msg.type in ("note_on", "note_off"): 374 | if not msg.velocity or msg.type == "note_off": 375 | self.notes.append( 376 | {"note": msg.note - 21, "start": start_keys[msg.note - 21], "end": int(frame)}) 377 | else: 378 | start_keys[msg.note - 21] = int(frame) 379 | 380 | def is_black(self, key): 381 | return (key - 3) % 12 in (1, 3, 6, 8, 10) 382 | 383 | def get_play_status(self, frame): 384 | keys = set() 385 | for note in self.notes: 386 | if note["start"] <= frame <= note["end"]: 387 | keys.add(note["note"]) 388 | return keys 389 | 390 | def get_min_time(self): 391 | return min(self.notes, key=lambda x: x["start"])["start"] 392 | 393 | def get_max_time(self): 394 | return max(self.notes, key=lambda x: x["end"])["end"] 395 | 396 | def gen_flac(self, export_dir, silent_len): 397 | flacs = [] 398 | flacs_path = os.path.join(export_dir, "pianoflac.flac") 399 | for midi in self.midis: 400 | fs = FluidSynth() 401 | fs.midi_to_audio(midi, flacs_path) 402 | flacs.append(AudioSegment.from_file(flacs_path, format="flac")) 403 | return flacs 404 | 405 | def register(self, fps, offset): 406 | self.fps = fps 407 | self.offset = offset 408 | self.parse_midis() 409 | -------------------------------------------------------------------------------- /publish.py: -------------------------------------------------------------------------------- 1 | import os 2 | import re 3 | from shutil import rmtree 4 | 5 | 6 | pardir = os.path.realpath(os.path.dirname(__file__)) 7 | 8 | 9 | def get_next_version(string: str): 10 | new = str(int(string.replace(".", "")) + 1) 11 | new = "0" * (3 - len(new)) + new 12 | return new[0] + "." + new[1] + "." + new[2] 13 | 14 | 15 | with open(os.path.join(pardir, "setup.py"), "r") as orig: 16 | text = orig.read() 17 | prev_name = re.search(r"name ?= ?[\"\'].*[\"\'],", text) 18 | name_text = text[prev_name.start() : prev_name.end()] 19 | name = re.search(r"[\"\'].*[\"\']", name_text) 20 | module = text[ 21 | name.start() + 1 + prev_name.start() : name.end() - 1 + prev_name.start() 22 | ] 23 | version = re.search(r"\d+\.\d+\.\d+", text) 24 | pos_start = version.start() 25 | pos_end = version.end() 26 | text = text[:pos_start] + get_next_version(text[pos_start:pos_end]) + text[pos_end:] 27 | with open(os.path.join(pardir, "setup.py"), "w") as f: 28 | f.write(text) 29 | 30 | os.chdir(pardir) 31 | os.system("python setup.py sdist bdist_wheel") 32 | _ = os.system("twine upload dist/*") 33 | rmtree(os.path.join(pardir, "build")) 34 | rmtree(os.path.join(pardir, "dist")) 35 | rmtree(os.path.join(pardir, f"{module}.egg-info")) 36 | -------------------------------------------------------------------------------- /requirements.txt: -------------------------------------------------------------------------------- 1 | pygame 2 | opencv-python 3 | mido 4 | random-utils 5 | ffmpeg-python 6 | pydub 7 | tqdm 8 | notify-py 9 | midi2audio -------------------------------------------------------------------------------- /setup.py: -------------------------------------------------------------------------------- 1 | import os 2 | import setuptools 3 | 4 | PARDIR = os.path.realpath(os.path.dirname(__file__)) 5 | 6 | with open(os.path.join(PARDIR, "README.md")) as f: 7 | long_description = f.read() 8 | 9 | with open(os.path.join(PARDIR, "requirements.txt")) as f: 10 | reqs = f.read().strip().split("\n") 11 | 12 | 13 | setuptools.setup( 14 | name="piano_visualizer", 15 | version=os.getenv("PYPI_VERSION").split("/")[-1].strip(), 16 | author="Arjun Sahlot", 17 | author_email="iarjun.sahlot@gmail.com", 18 | description="A python library that allows you to export a video in which a piano is playing the music you give it.", 19 | long_description=long_description, 20 | long_description_content_type="text/markdown", 21 | license="GNU GPL v3", 22 | url="https://github.com/ArjunSahlot/piano_visualizer", 23 | keywords=["piano", "visualizer"], 24 | py_modules=["piano_visualizer"], 25 | packages=setuptools.find_packages(), 26 | install_requires=reqs, 27 | python_requires=">=3", 28 | classifiers=[ 29 | "Programming Language :: Python :: 3", 30 | "Intended Audience :: Developers", 31 | "Topic :: Software Development :: Build Tools", 32 | "License :: OSI Approved :: GNU General Public License v3 (GPLv3)", 33 | "Operating System :: OS Independent", 34 | ], 35 | ) 36 | --------------------------------------------------------------------------------