python使用opencv、vlc对直播连接进行视频播放

安装opencv:

pip install opencv-contrib-python==4.3.0.36

pip install python-vlc==3.0.10114

注：下载慢的话，加上清华源的链接。

 

直接使用python的vlc的工具进行播放：

import sys
import http.client
import time
from vlc import VideoMarqueeOption, Position, EventType, Instance


class RTSP_Client():
pass


class VLC_Player():
def __init__(self, url):
self.url = url

def start_with_marquee(self, timeout=60):
"""这种方案是可以带字幕的，根据vlc自带测试源码改写
　　　　 """

movie = self.url
# Need --sub-source=marq in order to use marquee below
print(sys.argv[:])
instance = Instance(["--sub-source=marq"] + sys.argv[1:])
try:
media = instance.media_new(movie)
except (AttributeError, NameError) as e:
sys.exit(1)
player = instance.media_player_new()
player.set_media(media)
player.play()

# Some marquee examples. Marquee requires '--sub-source marq' in the
# Instance() call above, see <http://www.videolan.org/doc/play-howto/en/ch04.html>
player.video_set_marquee_int(VideoMarqueeOption.Enable, 1)
player.video_set_marquee_int(VideoMarqueeOption.Size, 24) # pixels
player.video_set_marquee_int(VideoMarqueeOption.Position, Position.Bottom)
player.video_set_marquee_int(VideoMarqueeOption.Timeout, 0) # millisec, 0==forever
player.video_set_marquee_int(VideoMarqueeOption.Refresh, 1000) # millisec (or sec?)
t = '%Y-%m-%d %H:%M:%S'
player.video_set_marquee_string(VideoMarqueeOption.Text, str_to_bytes(t))

# Some event manager examples. Note, the callback can be any Python
# callable and does not need to be decorated. Optionally, specify
# any number of positional and/or keyword arguments to be passed
# to the callback (in addition to the first one, an Event instance).
event_manager = player.event_manager()
event_manager.event_attach(EventType.MediaPlayerEndReached, end_callback)
event_manager.event_attach(EventType.MediaPlayerPositionChanged, pos_callback, player)
time.sleep(timeout)

def start(self, timeout=60):
"""这种是最简方案，用来测试播放足够了
　　　　 """

instance = Instance()
player = instance.media_player_new()
Media = instance.media_new(self.url)
Media.get_mrl()
player.set_media(Media)
player.play()
# 如果是看直播这里直接写while True 即可
time.sleep(timeout)


def str_to_bytes(s):
"""Translate string or bytes to bytes.
"""
if isinstance(s, str):
return bytes(s, encoding="UTF-8")
else:
return s


def end_callback(event):
print('End of media stream (event %s)' % event.type)
sys.exit(0)


echo_position = False


def pos_callback(event, player):
if echo_position:
sys.stdout.write('\r%s to %.2f%% (%.2f%%)' % (event.type,
event.u.new_position * 100,
player.get_position() * 100))
sys.stdout.flush()


if __name__ == "__main__":
# 测试url为浙江卫视直播流
# 注意换一下该url的地址为自己的想用的直播地址，可以现在VLC客户端播放器里试一下能否播放再运行该代码
url = "http://14.29.60.40/live/5/30/847a4e1e97584d39a961f5604e90c1c4.m3u8?type=web.cloudplay"
# url = "https://tv.cctv.com/live/cctv13/"
p = VLC_Player(url)
p.start(6000)
使用opencv进行直播视频播放：

import vlc
import ctypes
import time
import sys
import cv2
import numpy
from PIL import Image

vlcInstance = vlc.Instance()
# 机场内
# m = vlcInstance.media_new("")
# 机场外
# 记得换url,最好也和上面一样进行测试一下
url = ""
m = vlcInstance.media_new(url)
mp = vlc.libvlc_media_player_new_from_media(m)

# ***如果显示不完整，调整以下宽度和高度的值来适应不同分辨率的图像***
video_width = 1080
video_height = 640

size = video_width * video_height * 4
buf = (ctypes.c_ubyte * size)()
buf_p = ctypes.cast(buf, ctypes.c_void_p)

VideoLockCb = ctypes.CFUNCTYPE(ctypes.c_void_p, ctypes.c_void_p, ctypes.POINTER(ctypes.c_void_p))


@VideoLockCb
def _lockcb(opaque, planes):
# print("lock", file=sys.stderr)
planes[0] = buf_p


@vlc.CallbackDecorators.VideoDisplayCb
def _display(opaque, picture):
img = Image.frombuffer("RGBA", (video_width, video_height), buf, "raw", "BGRA", 0, 1)
opencv_image = cv2.cvtColor(numpy.array(img), cv2.COLOR_RGB2BGR)
cv2.imshow('image', opencv_image)
cv2.waitKey(10)


vlc.libvlc_video_set_callbacks(mp, _lockcb, None, _display, None)
mp.video_set_format("BGRA", video_width, video_height, video_width * 4)
while True:
mp.play()
time.sleep(1)
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版权声明：本文为CSDN博主「JenKinJia」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/iamjingong/article/details/107508035