所以我正在尝试做一些非常笨拙的事情。我正在使用opencv和ffpyplayer尝试在Tk窗口上制作嵌入式视频播放器。
它确实有效，但我有同步音频和视频的问题，我可以接近一个不错的结果，但稍微后它再次失去同步。
整个代码：
import time, traceback, os, telepot
from tkinter import *
import cv2, youtube_dl # pip install opencv-python; pip install --upgrade
youtube_dl
from PIL import Image, ImageTk #
from io import BytesIO # io
from ffpyplayer.player import MediaPlayer # pip install ffpyplayer
from pytube import YouTube
_name_ = os.path.basename(os.path.realpath(__file__))
_path_ = os.path.realpath(__file__).replace(_name_, '')
class Screen(Frame):
'''
Screen widget: Embedded video player from local or youtube
'''
def __init__(self, parent, *args, **kwargs):
Frame.__init__(self, parent, bg = 'black')
self.settings = { # Inizialazing dictionary settings
"width" : 1024,
"height" : 576
}
self.settings.update(kwargs) # Changing the default settings
# Open the video source |temporary
self.video_source = _path_+'asd.mp4'
# Inizializing video and audio variables
self.vid = None
self.aux = None
# Canvas of the player
self.canvas = Canvas(self, width = self.settings['width'], height = self.settings['height'], bg = "black", highlightthickness = 0)
self.canvas.pack()
# NEED TO SYNC AUDIO
self.delay = 15 # Delay between frames of player
def update(self):
'''
Function: Start the player and keeps drawing the canvas
'''
if not self.vid or not self.aux: # If Audio or Video is missing stop everything
self.stop()
return None
# Get the frames and if video and audio are running
ret, frame = self.get_frame()
audio_frame, val = self.aux.get_frame()
# Drawing frames on canvas
if self.fb == 1: # Check if it's the first cycle, trying to make the audio start with the video
self.photo = ImageTk.PhotoImage(image = Image.fromarray(frame).resize((self.settings['width'], self.settings['height'])))
self.canvas.create_image(0,0, image = self.photo, anchor = 'nw')
self.fb = 0
self.aux.set_pause(False) # Starting the audio
elif ret and val != 'eof':
self.photo = ImageTk.PhotoImage(image = Image.fromarray(frame).resize((self.settings['width'], self.settings['height'])))
self.canvas.create_image(0,0, image = self.photo, anchor = 'nw')
self.after(self.delay, self.update) # Update for single frame, need to sync
def get_frame(self):
'''
Function: Draws the frames
'''
if self.vid.isOpened():
ret, frame = self.vid.read()
if ret:
# Return a boolean success flag and the current frame converted to BGR
return (ret, cv2.cvtColor(frame, cv2.COLOR_BGR2RGB))
else:
return (ret, None)
def youTube(self, ID):
'''
Function: Gets the youtube video and starts it
'''
print("(TO REPLACE) : Downloading")
yt = YouTube("https://www.youtube.com/watch?v=" + ID)
stream = yt.streams.filter(progressive=True).first() # SEE THE POSSIBLE THINGS TO DOWNLOAD
stream.download(_path_, 'test')
print("(TO REPLACE) : Finished")
self.start(_path_+'\\test.mp4')
def start(self, _source):
'''
Function: Starts the player when gets input from keyboard(temporal) or Telegram
'''
try: # Stopping player if is already playing for a new video
self.stop()
except:
None
ff_opts = {'paused' : True} # Audio options
self.fb = 1 # Setting first cycle
if _source == 'local': # Checking which source use
self.vid = cv2.VideoCapture(self.video_source)
self.aux = MediaPlayer(self.video_source, ff_opts=ff_opts)
else:
self.vid = cv2.VideoCapture(_source)
self.aux = MediaPlayer(_source, ff_opts=ff_opts)
if not self.vid.isOpened():
raise ValueError("Unable to open video source")
self.update() # Starting the player
def stop(self):
'''
Function: Release and stop Video and Audio
'''
try: # Stopping video
self.vid.release()
self.vid = None
except:
pass
try: # Stopping audio
self.aux.toggle_pause()
self.aux = None
except:
pass
self.canvas.delete('all') # Resetting canvas
def __del__(self):
'''
Function: Release the video source when the object is destroyed
'''
if self.vid.isOpened():
self.vid.release()
class Mirror:
'''
Mainframe: Display where to put the widgets
'''
def __init__(self):
self.tk = Tk() # Creating the window
self.tk.configure(background = 'black')
self.tk.update()
# Setting up the FRAMES for widgets
self.bottomFrame = Frame(self.tk, background = 'black')
self.bottomFrame.pack(side = BOTTOM, fill = BOTH, expand = YES)
# Bindings and fullscreen setting
self.fullscreen = False
self.tk.bind("<Return>", self.toggle_fullscreen)
self.tk.bind("<Escape>", self.end_fullscreen)
# Screen, BOT
print("Inizializing Screen...")
self.screen = Screen(self.bottomFrame)
self.screen.pack(side = TOP)
self.tk.bind("<Key>", self.key) # Get inputs from keyboard
def key(self, event):
pressed = repr(event.char).replace("'", '')
if pressed == 's':
self.screen.stop()
elif pressed == 'a':
self.screen.start('local')
else:
print('fail')
def toggle_fullscreen(self, event = None):
self.fullscreen = True
self.tk.attributes("-fullscreen", self.fullscreen)
def end_fullscreen(self, event = None):
self.fullscreen = False
self.tk.attributes("-fullscreen", self.fullscreen)
def on_chat_message(msg):
content_type, chat_type, chat_id = telepot.glance(msg)
message = str(msg.get('text'))
if 'https://youtu.be/' in message:
URL_VIDEO = message.split('https://youtu.be/')[1]
Mir.screen.youTube(URL_VIDEO)
elif 'stop' == message.lower():
Mir.screen.stop()
if __name__ == '__main__':
Mir = Mirror()
#bot = telepot.Bot(TELEGRAM_TOKEN)
#bot.message_loop(on_chat_message)
Mir.tk.mainloop()
#while 1:
#time.sleep(10)
具体来说，渲染帧的方法：
# NEED TO SYNC AUDIO
self.delay = 15 # Delay between frames of player
def update(self):
'''
Function: Start the player and keeps drawing the canvas
'''
if not self.vid or not self.aux: # If Audio or Video is missing stop everything
self.stop()
return None
# Get the frames and if video and audio are running
ret, frame = self.get_frame()
audio_frame, val = self.aux.get_frame()
# Drawing frames on canvas
if self.fb == 1: # Check if it's the first cycle, trying to make the audio start with the video
self.photo = ImageTk.PhotoImage(image = Image.fromarray(frame).resize((self.settings['width'], self.settings['height'])))
self.canvas.create_image(0,0, image = self.photo, anchor = 'nw')
self.fb = 0
self.aux.set_pause(False) # Starting the audio
elif ret and val != 'eof':
self.photo = ImageTk.PhotoImage(image = Image.fromarray(frame).resize((self.settings['width'], self.settings['height'])))
self.canvas.create_image(0,0, image = self.photo, anchor = 'nw')
self.after(self.delay, self.update) # Update for single frame, need to sync
我尝试了其他的东西来使这个东西工作，看看我是否能找到解决方案，但没有成功，如果有人有一些想法或更好的解决方案，我会很感激。
此外，我尝试从youtube获取视频作为流，而不需要先下载整个视频播放它，我可以让视频工作，但我找不到一种方法来播放音频，如果有人知道的方式要做到这一点，我也想知道。
编辑：所以视频的帧速率应该是24,30或60，我应该检查视频的帧速率，然后相应地设置延迟，我这样做的方式，是我手动改变延迟取决于视频帧速率试图通过反复试验使其同步。老实说，我对这些东西很不了解。
此外，为了使整个代码运行，它需要来自电报机器人的令牌或本地视频文件才能播放。
好吧，我找到了一个更方便的解决方案。我尝试再次使用vlc模块，我之前使用它时遇到了麻烦但是在我完成它之后我实际上找到了一种方法来将vlc的输出打印到带有画布的帧。
它实际上非常简单，我摆脱了cv2和ffpyplayer并使用了一个简单的VLC播放器
请注意，在我的情况下，Screen是一个Frame，所以为了使这个工作只需使用'Frame'.winfo_id（）来获取输出视频的tk帧的id，音频也可以工作。然后使用播放器.set_hwnd（ID）将其设置为vlc播放器。
class Screen(Frame):
'''
Screen widget: Embedded video player from local or youtube
'''
def __init__(self, parent, *args, **kwargs):
Frame.__init__(self, parent, bg = 'black')
self.settings = { # Inizialazing dictionary settings
"width" : 1024,
"height" : 576
}
self.settings.update(kwargs) # Changing the default settings
# Open the video source |temporary
self.video_source = _path_+'asd.mp4'
# Canvas where to draw video output
self.canvas = Canvas(self, width = self.settings['width'], height = self.settings['height'], bg = "black", highlightthickness = 0)
self.canvas.pack()
# Creating VLC player
self.instance = vlc.Instance()
self.player = self.instance.media_player_new()
def GetHandle(self):
# Getting frame ID
return self.winfo_id()
def play(self, _source):
# Function to start player from given source
Media = self.instance.media_new(_source)
Media.get_mrl()
self.player.set_media(Media)
#self.player.play()
self.player.set_hwnd(self.GetHandle())
self.player.play()