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• Python UnicodeEncodeError : 'charmap' codec can't encode when using GEOPY

  23 février 2021, par Tony Roczz

  I have been fiddling with python geopy and I tried the basic commands given in the documentation. But I am getting the UnicodeEncodeError when trying the raw command(to geolocate a query to an address and coordinates)

  



  print(location.raw)


  



  Error UnicodeEncodeError: &#x27;charmap&#x27; codec can&#x27;t encode character &#x27;\xa9&#x27; in position 83: character maps to <undefined></undefined>

  



  Then I tried the other way around (To find the address corresponding to a set of coordinates)

  



  print(location.address)    


  



  I am getting the same error UnicodeEncodeError: &#x27;charmap&#x27; codec can&#x27;t encode character &#x27;\u0101&#x27; in position 10: character maps to <undefined></undefined>

  



  I tried print((location.address).encode("utf-8")) , now am not getting any error but the output printed is like this b'NH39, Mirz\xc4\x81pur

  



  and when using print((location.raw).encode("utf-8")) I am getting error

  



  AttributeError: 'dict' object has no attribute 'encode'


  



  Can anyone tell me what is going on here and what I should do to get a proper output ?

  



  Edit :(After being marked as duplicate)

  



  Based on the solution given in this problem I am reporting on how it does not solve my problem

  



  What I wanted to know is why do I get the UnicodeEncodeError when trying out the basic sample codings given in the documentation and it did answer for that.

  



  If I want to use it an application how do I solve the error and I cannot have the application running on separate IDE or send the output to a external file since my application will function based on the output from geopy, I want the application to run in the terminal as my other applications do.

  


• Invalid data found when processing input on ffmpeg m4s to mp4 transfer

  1er mars 2020, par keith scott

  The result of the power shell window

  I saw a post on here about converting m4s to mp4 and I have followed the steps of concatenating all the files into another m4s file that I called all.m4s and when I use the command ffmpeg -i allm4s.m4s -c copy video.mp4. I made the combined m4s file by coding an exe to add all the m4s files that have the word video in them to the m4s file. Here is the source code written in c# if you compile the code then that is the code I have used to make the m4s

  using System;
  
  using System.Collections.Generic;
  
  using System.Linq;
  
  using System.Text;
  
  using System.Threading.Tasks;
  
  using System.IO;
  
  
  
  namespace files
  
  {
  
      class Program
  
      {
  
          static void Main(string[] args)
  
          {
  
              string dir = Directory.GetCurrentDirectory();
  
              string[] info = Directory.GetFiles(dir);
  
              Console.WriteLine(dir + "\\allm4s.m4s");
  
              Console.ReadKey();
  
              foreach (string name in info)
  
              {
  
                  if (Path.GetFileName(name).Contains(".m4s") && Path.GetFileName(name).Contains("video"))
  
                  {
  
                      using (Stream srcStream = File.OpenRead(name))
  
                      {
  
                          using (Stream destStream = File.OpenWrite(dir+"\\allm4s.m4s"))
  
                          {
  
                              srcStream.CopyTo(destStream);
  
                              Console.WriteLine(destStream+name);
  
                          }
  
                      }
  
                  }
  
              }
  
              Console.ReadKey();
  
          }
  
      }
  
  }

  I think if there is to be an issue it is to do with this allm4s.m4s file as the file size is about 1.5mb even though each segment m4s is about 750kb each and there are quite a lot.If anyone has a way of adding concatenating lots of files together through a program/application that would be useful.

• find the timestamp of a sound sample of an mp3 with linux or python

  23 juin 2020, par cardamom

  I am slowly working on a project which where it would be very useful if the computer could find where in an mp3 file a certain sample occurs. I would restrict this problem to meaning a fairly exact snippet of the audio, not just for example the chorus in a song on a different recording by the same band where it would become more some kind of machine learning problem. Am thinking if it has no noise added and comes from the same file, it should somehow be possible to locate the time at which it occurs without machine learning, just like grep can find the lines in a textfile where a word occurs.

  


  In case you don't have an mp3 lying around, can set up the problem with some music available on the net which is in the public domain, so nobody complains :

  


  curl https://web.archive.org/web/20041019004300/http://www.navyband.navy.mil/anthems/ANTHEMS/United%20Kingdom.mp3 --output godsavethequeen.mp3


  


  It's a minute long :

  


  exiftool godsavethequeen.mp3 | grep Duration
Duration                        : 0:01:03 (approx)


  


  Now cut out a bit between 30 and 33 seconds (the bit which goes la la la la..) :

  


  ffmpeg -ss 30 -to 33 -i godsavethequeen.mp3 gstq_sample.mp3


  


  both files in the folder :

  


  $ ls -la
-rw-r--r-- 1 cardamom cardamom   48736 Jun 23 00:08 gstq_sample.mp3
-rw-r--r-- 1 cardamom cardamom 1007055 Jun 22 23:57 godsavethequeen.mp3


  


  This is what am after :

  


  $ findsoundsample gstq_sample.mp3 godsavethequeen.mp3
start 30 end 33


  


  Am happy if it is a bash script or a python solution, even using some kind of python library. Sometimes if you use the wrong tool, the solution might work but look horrible, so whichever tool is more suitable. This is a one minute mp3, have not thought yet about performance just about getting it done at all, but would like some scalability, eg find ten seconds somewhere in half an hour.