我目前正在开展一个项目,该项目涉及启动视频,立即暂停它并在给定事件之后启动它。(万圣节项目:什么都没有发生,如果有人经过,吓一跳)
但我似乎无法将音频设置为与视频同时播放(当事件触发它时),音频总是在开头播放。
有人对此有解决方案吗?
bla bla bla ...
# Declaration
face_walking_apparition_time = 0
music_apparition_time = 0
walking_timer = time.time()
music_timer = time.time()
last_walking_block_seen = None
files1 = "Madam_Old_H.mp4"
audio1 = "Scream_Woman.mp3"
# Screen size
slength = '1366'
swidth = '768'
print("Starting up ...")
tgr = 0
try:
# ----- VIDEO -----
VIDEO_PATH = Path(files1)
AUDIO_PATH = Path(audio1)
player = OMXPlayer(VIDEO_PATH, args = ['--no-osd', '--loop', '--win', '0 0 {0} {1}'.format(slength, swidth)])
audio = OMXPlayer(AUDIO_PATH, args = ['--no-osd', '--loop'])
time.sleep(1)
#print("Ready to trigger")
while True:
# Pause the video
player.pause()
audio.pause()
GPIO.setup(11, GPIO.OUT)
# Cleanup output
GPIO.output(11, 0)
time.sleep(0.000002)
# Send signal
GPIO.output(11, 1)
time.sleep(0.000005)
GPIO.output(11, 0)
GPIO.setup(11, GPIO.IN)
# Measure the distance
while GPIO.input(11) == 0:
start = time.time()
while GPIO.input(11) == 1:
stop = time.time()
print("Measuring")
duration = stop - start
distance = duration * 34000 / 2
DD = round(distance)
print(DD, "cm")
time.sleep(0.5)
blocks = hl.requestAll() # Blocks and Arrows
if(200 < DD): # If we are more than 200 cm away
# We count the number of seconds between the last checkpoint and now
face_walking_apparition_time = time.time() - walking_timer # (t+3) - t = 3, it's how u calculate timer
print(face_walking_apparition_time)
# Then we check if a face has appeared for more than 30 seconds:
if face_walking_apparition_time > 30: # If the block is detected more than 30 seconds
player.play()
audio.pause()
time.sleep(player.duration())
if face_walking_apparition_time > 50:
player.pause()
walking_timer = time.time()
face_walking_apparition_time = 0
elif (50 < DD) and (DD < 200):
# As we don't see no face, we have to reset our checkpoint to "now"
walking_timer = time.time()
music_timer = time.time()
face__walking_apparition_time = 0
music_apparition_time = 0
time.sleep(0.1)
我想澄清一下我是 python 新手,我目前使用的是 RaspBerry Pi 3