252 lines
11 KiB
Python
252 lines
11 KiB
Python
#!/usr/bin/env python
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import PySimpleGUI as sg
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import os
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import mido
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import time
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PLAYER_COMMAND_NONE = 0
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PLAYER_COMMAND_EXIT = 1
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PLAYER_COMMAND_PAUSE = 2
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PLAYER_COMMAND_NEXT = 3
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PLAYER_COMMAND_RESTART_SONG = 4
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helv15 = 'Helvetica 15'
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# ---------------------------------------------------------------------- #
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# PlayerGUI CLASS #
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# ---------------------------------------------------------------------- #
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class PlayerGUI():
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'''
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Class implementing GUI for both initial screen but the player itself
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'''
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def __init__(self):
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self.Window = None
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self.TextElem = None
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# use to get the list of midi ports
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self.PortList = mido.get_output_names()
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# reverse the list so the last one is first
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self.PortList = self.PortList[::-1]
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# ---------------------------------------------------------------------- #
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# PlayerChooseSongGUI #
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# Show a GUI get to the file to playback #
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# ---------------------------------------------------------------------- #
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def PlayerChooseSongGUI(self):
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# ---------------------- DEFINION OF CHOOSE WHAT TO PLAY GUI ----------------------------
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helv = ("Helvetica", 15)
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layout = [[sg.Text('MIDI File Player', font=helv15, size=(20, 1), text_color='green')],
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[sg.Text('File Selection', font=helv15, size=(20, 1))],
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[sg.Text('Single File Playback', justification='right'),
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sg.InputText(size=(65, 1), key='midifile'),
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sg.FileBrowse(size=(10, 1), file_types=(("MIDI files", "*.mid"),))],
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[sg.Text('Or Batch Play From This Folder', auto_size_text=False, justification='right'),
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sg.InputText(size=(65, 1), key='folder'),
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sg.FolderBrowse(size=(10, 1))],
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[sg.Text('_' * 250, auto_size_text=False, size=(100, 1))],
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[sg.Text('Choose MIDI Output Device', size=(22, 1)),
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sg.Listbox(values=self.PortList, size=(30, len(self.PortList) + 1), key='device')],
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[sg.Text('_' * 250, auto_size_text=False, size=(100, 1))],
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[sg.SimpleButton('PLAY', size=(12, 2), button_color=('red', 'white'), font=helv15, bind_return_key=True),
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sg.Text(' ' * 2, size=(4, 1)),
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sg.Cancel(size=(8, 2), font=helv15)]]
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window = sg.Window('MIDI File Player', layout, auto_size_text=False,
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default_element_size=(30, 1), font=helv)
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self.Window = window
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return window.read()
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def PlayerPlaybackGUIStart(self, NumFiles=1):
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# ------- Make a new FlexForm ------- #
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image_pause = './ButtonGraphics/Pause.png'
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image_restart = './ButtonGraphics/Restart.png'
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image_next = './ButtonGraphics/Next.png'
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image_exit = './ButtonGraphics/Exit.png'
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self.TextElem = sg.Text('Song loading....',
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size=(70, 5 + NumFiles),
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font=("Helvetica", 14), auto_size_text=False)
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self.SliderElem = sg.Slider(range=(1, 100),
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size=(50, 8),
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orientation='h', text_color='#f0f0f0')
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css = {
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'image_size': (50, 50),
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'image_subsample': 2,
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'border_width': 0,
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'button_color': sg.TRANSPARENT_BUTTON
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}
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layout = [
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[sg.Text('MIDI File Player', size=(30, 1), font=("Helvetica", 25))],
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[self.TextElem],
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[self.SliderElem],
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[sg.Button('', image_filename=image_pause, **css, key='PAUSE'), sg.Text(' '),
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sg.Button('', image_filename=image_next, **css, key='NEXT'), sg.Text(' '),
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sg.Button('', image_filename=image_restart, **css, key='Restart Song'), sg.Text(' '),
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sg.Button('', image_filename=image_exit, **css, key='EXIT')]
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]
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window = sg.Window('MIDI File Player', layout, default_element_size=(
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30, 1), font=("Helvetica", 25), finalize=True)
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self.Window = window
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# ------------------------------------------------------------------------- #
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# PlayerPlaybackGUIUpdate #
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# Refresh the GUI for the main playback interface (must call periodically #
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# ------------------------------------------------------------------------- #
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def PlayerPlaybackGUIUpdate(self, DisplayString):
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window = self.Window
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# if the widnow has been destoyed don't mess with it
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if 'window' not in locals() or window is None:
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return PLAYER_COMMAND_EXIT
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self.TextElem.update(DisplayString)
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event, (values) = window.read(timeout=0)
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if event is None:
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return PLAYER_COMMAND_EXIT
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if event == 'PAUSE':
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return PLAYER_COMMAND_PAUSE
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elif event == 'EXIT':
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return PLAYER_COMMAND_EXIT
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elif event == 'NEXT':
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return PLAYER_COMMAND_NEXT
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elif event == 'Restart Song':
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return PLAYER_COMMAND_RESTART_SONG
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return PLAYER_COMMAND_NONE
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# ---------------------------------------------------------------------- #
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# MAIN - our main program... this is it #
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# Runs the GUI to get the file / path to play #
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# Decodes the MIDI-Video into a MID file #
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# Plays the decoded MIDI file #
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# ---------------------------------------------------------------------- #
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def main():
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def GetCurrentTime():
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'''
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Get the current system time in milliseconds
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:return: milliseconds
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'''
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return int(round(time.time() * 1000))
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pback = PlayerGUI()
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button, values = pback.PlayerChooseSongGUI()
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if button != 'PLAY':
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sg.popup_cancel('Cancelled...\nAutoclose in 2 sec...',
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auto_close=True, auto_close_duration=2)
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return
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if values['device']:
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midi_port = values['device'][0]
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else:
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sg.popup_cancel('No devices found\nAutoclose in 2 sec...',
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auto_close=True, auto_close_duration=2)
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batch_folder = values['folder']
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midi_filename = values['midifile']
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# ------ Build list of files to play --------------------------------------------------------- #
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if batch_folder:
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filelist = os.listdir(batch_folder)
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filelist = [batch_folder+'/' +
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f for f in filelist if f.endswith(('.mid', '.MID'))]
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filetitles = [os.path.basename(f) for f in filelist]
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elif midi_filename: # an individual filename
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filelist = [midi_filename, ]
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filetitles = [os.path.basename(midi_filename), ]
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else:
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sg.popup_error('*** Error - No MIDI files specified ***')
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return
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# ------ LOOP THROUGH MULTIPLE FILES --------------------------------------------------------- #
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pback.PlayerPlaybackGUIStart(NumFiles=len(filelist) if len(filelist) <= 10 else 10)
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port = None
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# Loop through the files in the filelist
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for now_playing_number, current_midi_filename in enumerate(filelist):
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display_string = 'Playing Local File...\n{} of {}\n{}'.format(
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now_playing_number+1, len(filelist), current_midi_filename)
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midi_title = filetitles[now_playing_number]
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# --------------------------------- REFRESH THE GUI ----------------------------------------- #
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pback.PlayerPlaybackGUIUpdate(display_string)
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# ---===--- Output Filename is .MID --- #
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midi_filename = current_midi_filename
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# --------------------------------- MIDI - STARTS HERE ----------------------------------------- #
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if not port: # if the midi output port not opened yet, then open it
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port = mido.open_output(midi_port if midi_port else None)
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try:
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mid = mido.MidiFile(filename=midi_filename)
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except:
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print(' Fail at playing Midi file = {}****'.format(midi_filename))
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sg.popup_error('Exception trying to play MIDI file:',
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midi_filename, 'Skipping file')
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continue
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# Build list of data contained in MIDI File using only track 0
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midi_length_in_seconds = mid.length
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display_file_list = '>> ' + \
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'\n'.join([f for i, f in enumerate(
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filetitles[now_playing_number:]) if i < 10])
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paused = cancelled = next_file = False
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######################### Loop through MIDI Messages ###########################
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while True :
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start_playback_time = GetCurrentTime()
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port.reset()
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for midi_msg_number, msg in enumerate(mid.play()):
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#################### GUI - read values ##################
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if not midi_msg_number % 4: # update the GUI every 4 MIDI messages
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t = (GetCurrentTime() - start_playback_time)//1000
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display_midi_len = '{:02d}:{:02d}'.format(
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*divmod(int(midi_length_in_seconds), 60))
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display_string = 'Now Playing {} of {}\n{}\n {:02d}:{:02d} of {}\nPlaylist:'.\
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format(now_playing_number+1, len(filelist), midi_title, *divmod(t, 60), display_midi_len)
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# display list of next 10 files to be played.
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pback.SliderElem.update(t, range=(1, midi_length_in_seconds))
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rc = pback.PlayerPlaybackGUIUpdate(
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display_string + '\n' + display_file_list)
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else: # fake rest of code as if GUI did nothing
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rc = PLAYER_COMMAND_NONE
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if paused:
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rc = PLAYER_COMMAND_NONE
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while rc == PLAYER_COMMAND_NONE: # TIGHT-ASS loop waiting on a GUI command
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rc = pback.PlayerPlaybackGUIUpdate(display_string)
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time.sleep(.25)
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####################################### MIDI send data ##################################
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port.send(msg)
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# ------- Execute GUI Commands after sending MIDI data ------- #
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if rc == PLAYER_COMMAND_EXIT:
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cancelled = True
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break
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elif rc == PLAYER_COMMAND_PAUSE:
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paused = not paused
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port.reset()
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elif rc == PLAYER_COMMAND_NEXT:
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next_file = True
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break
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elif rc == PLAYER_COMMAND_RESTART_SONG:
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break
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if cancelled or next_file:
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break
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#------- DONE playing the song ------- #
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port.reset() # reset the midi port when done with the song
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if cancelled:
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break
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# ---------------------------------------------------------------------- #
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# LAUNCH POINT -- program starts and ends here #
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# ---------------------------------------------------------------------- #
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if __name__ == '__main__':
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main()
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