Before using openCV Realize the video playing , Unfortunately, the audio information is not processed , Only picture . This time try to use VLC Implement the player .
import vlc
import platform
class Player:
''' args: Set up options '''
def __init__(self, *args):
if args:
self.instance = vlc.Instance(*args)
else:
self.instance = vlc.Instance()
self.mediaplayer = self.instance.media_player_new()
self.uri = None
# Set the to be played url Address or local file path , Each call reloads the resource
def set_uri(self, uri):
self.uri = uri
# self.mediaplayer.set_mrl(self.uri)
# Replace with set_media Method , To get progress
m = self.instance.media_new(uri)
self.mediaplayer.set_media(m)
# Play Successfully returns 0, Failure to return -1
def play(self, path=None):
if path:
if path.endswith('h264'):
logger.debug(' take h264 Set the playback speed to 0.4')
self.mediaplayer.set_rate(0.4)
else:
logger.debug(' Set the playback speed to 1')
self.mediaplayer.set_rate(1)
self.set_uri(path)
return self.mediaplayer.play()
else:
return self.mediaplayer.play()
# Pause
def pause(self):
self.mediaplayer.pause()
# recovery
def resume(self):
self.mediaplayer.set_pause(0)
# stop it
def stop(self):
self.mediaplayer.stop()
# Release resources
def release(self):
return self.mediaplayer.release()
# Is it playing
def is_playing(self):
return self.mediaplayer.is_playing()
# Played for , Returns the value of milliseconds
def get_time(self):
return self.mediaplayer.get_time()
# Drag the specified millisecond value to play . Successfully returns 0, Failure to return -1 ( We need to pay attention to , Only the current multimedia format or streaming media protocol support will take effect )
def set_time(self, ms):
return self.mediaplayer.get_time()
# Total length of audio and video , Returns the value of milliseconds
def get_length(self):
return self.mediaplayer.get_length()
# Gets the current volume （0~100）
def get_volume(self):
return self.mediaplayer.audio_get_volume()
# set volume （0~100）
def set_volume(self, volume):
return self.mediaplayer.audio_set_volume(volume)
# Return to the current state ： Playing ; Suspended ; other
def get_state(self):
state = self.mediaplayer.get_state()
if state == vlc.State.Playing:
return 1
elif state == vlc.State.Paused:
return 0
else:
return -1
# Current playback progress . return 0.0~1.0 The floating point number between
def get_position(self):
return self.mediaplayer.get_position()
# Drag the current progress , Pass in 0.0~1.0 The floating point number between ( We need to pay attention to , Only the current multimedia format or streaming media protocol support will take effect )
def set_position(self, float_val):
return self.mediaplayer.set_position(float_val)
# Get the current file playback rate
def get_rate(self):
return self.mediaplayer.get_rate()
# Set the playback rate （ Such as ：1.2, Express acceleration 1.2 Double play ）
def set_rate(self, rate):
return self.mediaplayer.set_rate(rate)
# Set aspect ratio （ Such as "16:9","4:3"）
def set_ratio(self, ratio):
self.mediaplayer.video_set_scale(0) # Must be set to 0, Otherwise, the screen width and height cannot be modified
self.mediaplayer.video_set_aspect_ratio(ratio)
# Set window handle
def set_window(self, wm_id):
if platform.system() == 'Windows':
self.mediaplayer.set_hwnd(wm_id)
elif platform.system() == 'Linux':
self.mediaplayer.set_xwindow(wm_id)
else: # MacOS
self.mediaplayer.set_nsobject(wm_id)
# Register listener
def add_callback(self, event_type, callback):
self.mediaplayer.event_manager().event_attach(event_type, callback)
# Remove the monitor
def remove_callback(self, event_type, callback):
self.mediaplayer.event_manager().event_detach(event_type, callback)
