你如何使用GST 1.0

Question

获取流的细节我想创建一个Python文件，将一个音频流的输出细节。我找到了一个很好的例子（https://blogs.gnome.org/uraeus/2011/01/17/back-on-transmageddon-and-new-gstreamer-features/），但它使用GST 0.10作为我的项目，我需要Gstreamer 1.0。以下是我迄今为止所做的代码，但它确实可以正常工作。在此先感谢

#!/usr/bin/env python 
import sys, os, time, thread 
import gi 
gi.require_version('Gst', '1.0') 
gi.require_version('GstPbutils', '1.0') 
from gi.repository import GObject, GLib, Gst, GstPbutils, GstTag 
from gi.repository.GstPbutils import DiscovererAudioInfo,DiscovererStreamInfo, DiscovererInfo 
Gst.init(None) 
GObject.threads_init() 

class discover: 
def __init__(self): 
    print"..starting \n" 
    self.audiostreams=[] 
    self.error = None 

def on_discovered(discoverer, ismedia, infile): 
    print '\non_discovered:', infile 
    discoverer.print_info() 

def set_file(self,file): 
    self.file_uri=(file) 

    discoverer = GstPbutils.Discoverer.new(10 * Gst.SECOND) 
    self.info = discoverer.discover_uri(self.file_uri) 
    discoverer.connect('discovered',self.on_discovered) 
    print self.info.get_caps() 


    self.streaminfo=self.info.get_stream_info() 
    self.duration= (self.info.get_duration()/1000000000.0) 
    self.container = self.streaminfo.get_caps() 
    seekbool = self.info.get_seekable() 
    if seekbool is True: 
      self.seekable="Yes" 
    else: 
      self.seekable="No" 
    audiostreamcounter=-1 

    for i in self.info.get_stream_list(): 
     audiostreamcounter=audiostreamcounter+1 
     if isinstance(i, GstPbutils.DiscovererAudioInfo): 
      audiocaps=i.get_caps() 
      self.audiostreams.append(self.info.get_codec_description(audiocaps)) 
      self.audiotags=i.get_tags() 

def discover(self, uri): 
    self.discovered.discover_uri_async(uri) 

def create_report(self): 
    # Create properties report 
    print "Analyzing " + str(self.file_uri) 
    print "Topology:" 
    print " container: " + gst.pbutils.get_codec_description(self.container) 
    beancounter=0 
    for item in self.audiostreams: 
      beancounter=beancounter+1 
      print " audio stream " +str(beancounter) + ": " + self.audiostreams[beancounter-1] 
      print "Properties:" 
      print " Duration: " + str(self.duration) 
      print " Seekable: " + str(self.seekable) 
      print " Audio Tags: " 
      audiofile_tags = {} 
      for akey in self.audiotags.keys(): 
        audiofile_tags[akey] = self.audiotags[akey] 
        print "  " + akey, '\t', self.audiotags[akey] 

    if __name__=="__main__": 
     # if len(sys.argv)>1: 
      #file = sys.argv[1] 
      file = 'http://bbcmedia.ic.llnwd.net/stream/bbcmedia_radio4fm_mf_p?s=1455176207&e=1455190607&h=139a4cf601e4a2edf77bf475b$ 
      #pwd = os.getcwd() 
      #filepath = os.path.join(pwd,file) 
      discovering = discover() 
      discovering.set_file(file) 
      discovering.create_report() 

Answer 1

在应用方面的变化是最小的，因此是多个正在运行的问题和解决什么是错的。

这应该有助于在变化： http://cgit.freedesktop.org/gstreamer/gstreamer/tree/docs/random/porting-to-1.0.txt https://wiki.ubuntu.com/Novacut/GStreamer1.0

的C API就可以了，通常情况下，直接映射到蟒蛇。一旦你让我们知道什么不起作用，可以给出更准确的答案。