我正在尝试使用 gstreamer 循环播放视频，它是 python 绑定。第一次尝试是挂钩 EOS消息并为管道生成搜索消息：
import gi
gi.require_version("Gst", "1.0")
from gi.repository import Gst
import time
if not Gst.init_check()[0]:
print("gstreamer initialization failed")
source0 = Gst.ElementFactory.make("filesrc", "source0")
assert source0 is not None
source0.set_property("location", "video0.mp4")
qtdemux0 = Gst.ElementFactory.make("qtdemux", "demux0")
assert qtdemux0 is not None
decoder0 = Gst.ElementFactory.make("nxvideodec", "video_decoder0")
assert decoder0 is not None
def demux0_pad_added(demux, pad):
if pad.name == 'video_0': # We expect exactly first one video stream
pad.link(decoder0.get_static_pad("sink"))
qtdemux0.connect("pad-added", demux0_pad_added)
video_sink = Gst.ElementFactory.make("nxvideosink", "video_sink")
assert video_sink is not None …