python调用gstreamer推流
时间: 2023-11-02 14:58:47 浏览: 176
要使用Python调用Gstreamer进行推流,需要安装Python Gstreamer绑定库。可以使用以下命令在Linux中安装:
```
sudo apt-get install python-gst-1.0
```
接下来,可以使用以下Python代码来推送视频流:
```python
import gi
gi.require_version('Gst', '1.0')
from gi.repository import GObject, Gst
GObject.threads_init()
Gst.init(None)
pipeline = Gst.Pipeline()
# 创建源
source = Gst.ElementFactory.make("v4l2src", "source")
source.set_property("device", "/dev/video0")
# 创建编码器
encoder = Gst.ElementFactory.make("x264enc", "encoder")
encoder.set_property("speed-preset", "ultrafast")
# 创建PayLoad
pay = Gst.ElementFactory.make("rtph264pay", "pay")
# 创建UDPSink
udpsink = Gst.ElementFactory.make("udpsink", "udpsink")
udpsink.set_property("host", "127.0.0.1")
udpsink.set_property("port", 5000)
# 添加到pipeline中
pipeline.add(source)
pipeline.add(encoder)
pipeline.add(pay)
pipeline.add(udpsink)
# 连接元素
source.link(encoder)
encoder.link(pay)
pay.link(udpsink)
# 启动流
pipeline.set_state(Gst.State.PLAYING)
# 等待流
bus = pipeline.get_bus()
msg = bus.timed_pop_filtered(Gst.CLOCK_TIME_NONE, Gst.MessageType.ERROR | Gst.MessageType.EOS)
if msg:
if msg.type == Gst.MessageType.ERROR:
err, debug = msg.parse_error()
print("Error received from element %s: %s" % (msg.src.get_name(), err))
print("Debugging information: %s" % debug)
elif msg.type == Gst.MessageType.EOS:
print("End-Of-Stream reached.")
else:
print("Unexpected message received.")
# 停止流
pipeline.set_state(Gst.State.NULL)
```
这个代码段将从/dev/video0设备中获取视频流,并使用x264编码器进行编码,然后将其通过UDP发送到127.0.0.1:5000。可以根据需要更改设备和网络设置。