我正尝试使用gstreamer和icecast投射电脑生成的视频,但无法使gstreamer appsrc正常工作。如果我使用xvimagesink作为接收器,我的应用程序按预期工作(请参阅下面的注释代码)。但是,一旦我将它输入到theoraenc它不会运行。gstreamer appsrc适用于xvimagesink,但不适用于theoraenc! oggmux
我使用filesink交换了shout2send以检查问题是否是icecast,结果是没有数据写入文件。将appsrc替换为testvideosrc将按预期工作。任何建议?
#!/usr/bin/env python
import sys, os, pygtk, gtk, gobject
import pygst
pygst.require("0.10")
import gst
import numpy as np
class GTK_Main:
def __init__(self):
window = gtk.Window(gtk.WINDOW_TOPLEVEL)
window.connect("destroy", gtk.main_quit, "WM destroy")
vbox = gtk.VBox()
window.add(vbox)
self.button = gtk.Button("Start")
self.button.connect("clicked", self.start_stop)
vbox.add(self.button)
window.show_all()
self.player = gst.Pipeline("player")
source = gst.element_factory_make("appsrc", "source")
caps = gst.Caps("video/x-raw-gray,bpp=16,endianness=1234,width=320,height=240,framerate=(fraction)10/1")
source.set_property('caps',caps)
source.set_property('blocksize',320*240*2)
source.connect('need-data', self.needdata)
colorspace = gst.element_factory_make('ffmpegcolorspace')
enc = gst.element_factory_make('theoraenc')
mux = gst.element_factory_make('oggmux')
shout = gst.element_factory_make('shout2send')
shout.set_property("ip","localhost")
shout.set_property("password","hackme")
shout.set_property("mount","/stream")
caps = gst.Caps("video/x-raw-yuv,width=320,height=240,framerate=(fraction)10/1,format=(fourcc)I420")
enc.caps = caps
videosink = gst.element_factory_make('xvimagesink')
videosink.caps = caps
self.player.add(source, colorspace, enc, mux, shout)
gst.element_link_many(source, colorspace, enc, mux, shout)
#self.player.add(source, colorspace, videosink)
#gst.element_link_many(source, colorspace, videosink)
def start_stop(self, w):
if self.button.get_label() == "Start":
self.button.set_label("Stop")
self.player.set_state(gst.STATE_PLAYING)
else:
self.player.set_state(gst.STATE_NULL)
self.button.set_label("Start")
def needdata(self, src, length):
bytes = np.int16(np.random.rand(length/2)*30000).data
src.emit('push-buffer', gst.Buffer(bytes))
GTK_Main()
gtk.gdk.threads_init()
gtk.main()
如果您为了调试目的而将代码提取到gst管道中,可能会更容易。 – Dejan
也请告诉您如何连接到流。我试过了: gst-launch-0.10 souphttpsrc location =“http:// source:[email protected]:8000/stream”! decodebin2! xvimagesink 但是propit在libproxy中遇到了一个问题:/ 也许你可以看一下调试日志(使用GST_DEBUG =“*:3”运行你的应用程序,适合初学者。 – ensonic