NEW Demo - MIDI player using Mido
This commit is contained in:
MikeTheWatchGuy
parent
53e0c25a02
commit
2e3c401e87
|
|
@ -0,0 +1,228 @@
|
|||
import os
|
||||
import PySimpleGUI as g
|
||||
import mido
|
||||
import time
|
||||
|
||||
PLAYER_COMMAND_NONE = 0
|
||||
PLAYER_COMMAND_EXIT = 1
|
||||
PLAYER_COMMAND_PAUSE = 2
|
||||
PLAYER_COMMAND_NEXT = 3
|
||||
PLAYER_COMMAND_RESTART_SONG = 4
|
||||
|
||||
# ---------------------------------------------------------------------- #
|
||||
# PlayerGUI CLASS #
|
||||
# ---------------------------------------------------------------------- #
|
||||
class PlayerGUI():
|
||||
'''
|
||||
Class implementing GUI for both initial screen but the player itself
|
||||
'''
|
||||
|
||||
def __init__(self):
|
||||
self.Form = None
|
||||
self.TextElem = None
|
||||
self.PortList = mido.get_output_names() # use to get the list of midi ports
|
||||
self.PortList = self.PortList[::-1] # reverse the list so the last one is first
|
||||
|
||||
# ---------------------------------------------------------------------- #
|
||||
# PlayerChooseSongGUI #
|
||||
# Show a GUI get to the file to playback #
|
||||
# ---------------------------------------------------------------------- #
|
||||
def PlayerChooseSongGUI(self):
|
||||
|
||||
# ---------------------- DEFINION OF CHOOSE WHAT TO PLAY GUI ----------------------------
|
||||
with g.FlexForm('MIDI File Player', auto_size_text=False,
|
||||
default_element_size=(30, 1),
|
||||
font=("Helvetica", 12)) as form:
|
||||
layout = [[g.Text('MIDI File Player', font=("Helvetica", 15), size=(20, 1), text_color='green')],
|
||||
[g.Text('File Selection', font=("Helvetica", 15), size=(20, 1))],
|
||||
[g.Text('Single File Playback', justification='right'), g.InputText(size=(65, 1), key='midifile'), g.FileBrowse(size=(10, 1), file_types=(("MIDI files", "*.mid"),))],
|
||||
[g.Text('Or Batch Play From This Folder', auto_size_text=False, justification='right'), g.InputText(size=(65, 1), key='folder'), g.FolderBrowse(size=(10, 1))],
|
||||
[g.Text('_' * 250, auto_size_text=False, size=(100, 1))],
|
||||
[g.Text('Choose MIDI Output Device', size=(22, 1)),
|
||||
g.Listbox(values=self.PortList, size=(30, len(self.PortList) + 1), key='device')],
|
||||
[g.Text('_' * 250, auto_size_text=False, size=(100, 1))],
|
||||
[g.SimpleButton('PLAY!', size=(10, 2), button_color=('red', 'white'), font=("Helvetica", 15), bind_return_key=True), g.Text(' ' * 2, size=(4, 1)), g.Cancel(size=(8, 2), font=("Helvetica", 15))]]
|
||||
|
||||
|
||||
self.Form = form
|
||||
return form.LayoutAndRead(layout)
|
||||
|
||||
|
||||
def PlayerPlaybackGUIStart(self, NumFiles=1):
|
||||
# ------- Make a new FlexForm ------- #
|
||||
|
||||
image_pause = './ButtonGraphics/Pause.png'
|
||||
image_restart = './ButtonGraphics/Restart.png'
|
||||
image_next = './ButtonGraphics/Next.png'
|
||||
image_exit = './ButtonGraphics/Exit.png'
|
||||
|
||||
self.TextElem = g.T('Song loading....', size=(85, 5 + NumFiles), font=("Helvetica", 14), auto_size_text=False)
|
||||
form = g.FlexForm('MIDI File Player', default_element_size=(30, 1),font=("Helvetica", 25))
|
||||
layout = [
|
||||
[g.T('MIDI File Player', size=(30, 1), font=("Helvetica", 25))],
|
||||
[self.TextElem],
|
||||
[g.ReadFormButton('PAUSE', button_color=g.TRANSPARENT_BUTTON,
|
||||
image_filename=image_pause, image_size=(50,50),image_subsample=2, border_width=0,
|
||||
font=("Helvetica", 15), size=(10, 2)), g.T(' ' * 3),
|
||||
g.ReadFormButton('NEXT', button_color=g.TRANSPARENT_BUTTON,
|
||||
image_filename=image_next, image_size=(50,50),image_subsample=2, border_width=0,
|
||||
size=(10, 2), font=("Helvetica", 15)), g.T(' ' * 3),
|
||||
g.ReadFormButton('Restart Song', button_color=g.TRANSPARENT_BUTTON,
|
||||
image_filename=image_restart, image_size=(50,50), image_subsample=2,border_width=0,
|
||||
size=(10, 2), font=("Helvetica", 15)), g.T(' ' * 3),
|
||||
g.T(' '*2), g.SimpleButton('EXIT', button_color=g.TRANSPARENT_BUTTON,
|
||||
image_filename=image_exit, image_size=(50,50), image_subsample=2,border_width=0,
|
||||
size=(10, 2), font=("Helvetica", 15))]
|
||||
]
|
||||
|
||||
form.LayoutAndRead(layout, non_blocking=True)
|
||||
self.Form = form
|
||||
|
||||
|
||||
|
||||
# ------------------------------------------------------------------------- #
|
||||
# PlayerPlaybackGUIUpdate #
|
||||
# Refresh the GUI for the main playback interface (must call periodically #
|
||||
# ------------------------------------------------------------------------- #
|
||||
def PlayerPlaybackGUIUpdate(self, DisplayString):
|
||||
form = self.Form
|
||||
if 'form' not in locals() or form is None: # if the form has been destoyed don't mess with it
|
||||
return PLAYER_COMMAND_EXIT
|
||||
self.TextElem.Update(DisplayString)
|
||||
button, (values) = form.ReadNonBlocking()
|
||||
if values is None:
|
||||
return PLAYER_COMMAND_EXIT
|
||||
if button == 'PAUSE':
|
||||
return PLAYER_COMMAND_PAUSE
|
||||
elif button == 'EXIT':
|
||||
return PLAYER_COMMAND_EXIT
|
||||
elif button == 'NEXT':
|
||||
return PLAYER_COMMAND_NEXT
|
||||
elif button == 'Restart Song':
|
||||
return PLAYER_COMMAND_RESTART_SONG
|
||||
return PLAYER_COMMAND_NONE
|
||||
|
||||
|
||||
# ---------------------------------------------------------------------- #
|
||||
# MAIN - our main program... this is it #
|
||||
# Runs the GUI to get the file / path to play #
|
||||
# Decodes the MIDI-Video into a MID file #
|
||||
# Plays the decoded MIDI file #
|
||||
# ---------------------------------------------------------------------- #
|
||||
def main():
|
||||
def GetCurrentTime():
|
||||
'''
|
||||
Get the current system time in milliseconds
|
||||
:return: milliseconds
|
||||
'''
|
||||
return int(round(time.time() * 1000))
|
||||
|
||||
g.SetOptions(border_width=1, element_padding=(4, 6), font=("Helvetica", 10), button_color=('white', g.BLUES[0]),
|
||||
progress_meter_border_depth=1, slider_border_width=1)
|
||||
pback = PlayerGUI()
|
||||
|
||||
button, values = pback.PlayerChooseSongGUI()
|
||||
if button != 'PLAY!':
|
||||
g.MsgBoxCancel('Cancelled...\nAutoclose in 2 sec...', auto_close=True, auto_close_duration=2)
|
||||
exit(69)
|
||||
if values['device'] is not None:
|
||||
midi_port = values['device'][0]
|
||||
else:
|
||||
g.MsgBoxCancel('No devices found\nAutoclose in 2 sec...', auto_close=True, auto_close_duration=2)
|
||||
|
||||
batch_folder = values['folder']
|
||||
midi_filename = values['midifile']
|
||||
# ------ Build list of files to play --------------------------------------------------------- #
|
||||
if batch_folder:
|
||||
filelist = os.listdir(batch_folder)
|
||||
filelist = [batch_folder+'/'+f for f in filelist if f.endswith(('.mid', '.MID'))]
|
||||
filetitles = [os.path.basename(f) for f in filelist]
|
||||
elif midi_filename: # an individual filename
|
||||
filelist = [midi_filename,]
|
||||
filetitles = [os.path.basename(midi_filename),]
|
||||
else:
|
||||
g.MsgBoxError('*** Error - No MIDI files specified ***')
|
||||
exit(666)
|
||||
|
||||
# ------ LOOP THROUGH MULTIPLE FILES --------------------------------------------------------- #
|
||||
pback.PlayerPlaybackGUIStart(NumFiles=len(filelist) if len(filelist) <=10 else 10)
|
||||
port = None
|
||||
# Loop through the files in the filelist
|
||||
for now_playing_number, current_midi_filename in enumerate(filelist):
|
||||
display_string = 'Playing Local File...\n{} of {}\n{}'.format(now_playing_number+1, len(filelist), current_midi_filename)
|
||||
midi_title = filetitles[now_playing_number]
|
||||
# --------------------------------- REFRESH THE GUI ----------------------------------------- #
|
||||
pback.PlayerPlaybackGUIUpdate(display_string)
|
||||
|
||||
# ---===--- Output Filename is .MID --- #
|
||||
midi_filename = current_midi_filename
|
||||
|
||||
# --------------------------------- MIDI - STARTS HERE ----------------------------------------- #
|
||||
if not port: # if the midi output port not opened yet, then open it
|
||||
port = mido.open_output(midi_port if midi_port else None)
|
||||
|
||||
try:
|
||||
mid = mido.MidiFile(filename=midi_filename)
|
||||
except:
|
||||
print('****** Exception trying to play MidiFile filename = {}***************'.format(midi_filename))
|
||||
g.MsgBoxError('Exception trying to play MIDI file:', midi_filename, 'Skipping file')
|
||||
continue
|
||||
|
||||
# Build list of data contained in MIDI File using only track 0
|
||||
midi_length_in_seconds = mid.length
|
||||
display_file_list = '>> ' + '\n'.join([f for i, f in enumerate(filelist[now_playing_number:]) if i < 10])
|
||||
paused = cancelled = next_file = False
|
||||
######################### Loop through MIDI Messages ###########################
|
||||
while(True):
|
||||
start_playback_time = GetCurrentTime()
|
||||
port.reset()
|
||||
|
||||
for midi_msg_number, msg in enumerate(mid.play()):
|
||||
#################### GUI - read values ##################
|
||||
if not midi_msg_number % 4: # update the GUI every 4 MIDI messages
|
||||
t = (GetCurrentTime() - start_playback_time)//1000
|
||||
display_midi_len = '{:02d}:{:02d}'.format(*divmod(int(midi_length_in_seconds),60))
|
||||
display_string = 'Now Playing {} of {}\n{}\n {:02d}:{:02d} of {}\nPlaylist:'.\
|
||||
format(now_playing_number+1, len(filelist), midi_title, *divmod(t, 60), display_midi_len)
|
||||
# display list of next 10 files to be played.
|
||||
rc = pback.PlayerPlaybackGUIUpdate(display_string + '\n' + display_file_list)
|
||||
else: # fake rest of code as if GUI did nothing
|
||||
rc = PLAYER_COMMAND_NONE
|
||||
if paused:
|
||||
rc = PLAYER_COMMAND_NONE
|
||||
while rc == PLAYER_COMMAND_NONE: # TIGHT-ASS loop waiting on a GUI command
|
||||
rc = pback.PlayerPlaybackGUIUpdate(display_string)
|
||||
time.sleep(.25)
|
||||
|
||||
####################################### MIDI send data ##################################
|
||||
port.send(msg)
|
||||
|
||||
# ------- Execute GUI Commands after sending MIDI data ------- #
|
||||
if rc == PLAYER_COMMAND_EXIT:
|
||||
cancelled = True
|
||||
break
|
||||
elif rc == PLAYER_COMMAND_PAUSE:
|
||||
paused = not paused
|
||||
port.reset()
|
||||
elif rc == PLAYER_COMMAND_NEXT:
|
||||
next_file = True
|
||||
break
|
||||
elif rc == PLAYER_COMMAND_RESTART_SONG:
|
||||
break
|
||||
|
||||
if cancelled or next_file:
|
||||
break
|
||||
#------- DONE playing the song ------- #
|
||||
port.reset() # reset the midi port when done with the song
|
||||
|
||||
if cancelled:
|
||||
break
|
||||
exit(69)
|
||||
|
||||
# ---------------------------------------------------------------------- #
|
||||
# LAUNCH POINT -- program starts and ends here #
|
||||
# ---------------------------------------------------------------------- #
|
||||
if __name__ == '__main__':
|
||||
main()
|
||||
|
||||
exit(69)
|
||||
Loading…
Reference in New Issue