automatic file paths

Author: luftj

README.md

@@ -56,6 +56,7 @@ Channels are supplied in the [configuration file](config.json) with a name and t
     ``` curl http://sometvstation/master.m3u8 ```
 
 * switching channels takes a couple of seconds
+* preview player is not killed automatically. [Possible solution](https://stackoverflow.com/questions/4789837/how-to-terminate-a-python-subprocess-launched-with-shell-true)
 
 ## License notes
 

main.py

@@ -4,18 +4,21 @@
 from time import sleep
 import json
 from flask import Flask, render_template, request
-from playback import * 
+from playback import *
+import os
 
 app = Flask(__name__)
 vlc_process = None
 
+configpath = os.path.dirname(os.path.abspath(__file__)) + "/config.json"
+
 def get_stream_url(channel):
-    with open("config.json") as urls_file:
+    with open(configpath) as urls_file:
         urls_json = json.load(urls_file)
         return urls_json[channel]
 
 def get_stream_list():
-    with open("config.json") as urls_file:
+    with open(configpath) as urls_file:
         urls_json = json.load(urls_file)
         result =  list(urls_json.keys())
         print(result)
@@ -55,6 +58,7 @@ def preview():
     output_size = (1920,1080)
     command = mosaic(inputs,output_size,texts)
     vlc_process = subprocess.Popen(command, shell=True)
+    print(vlc_process)
 
     return render_template("channel_selector.html", channels = get_stream_list())
 

playback.py

@@ -1,5 +1,6 @@
 #!/bin/python3
 import math
+import os
 
 def mosaic(inputs, output_size, texts=None):
     command = "ffmpeg "
@@ -10,7 +11,9 @@ def mosaic(inputs, output_size, texts=None):
     command += "%dx%d" % output_size # total size of output video
     command += "[tmp0];" # base target
 
-    font = "fontfile=./Inconsolata-Bold.ttf" # get font. Shipped with repo for convenience
+    path = os.path.dirname(os.path.abspath(__file__))
+    path += "/Inconsolata-Bold.ttf"
+    font = "fontfile=%s" % path # get font. Shipped with repo for convenience
     part_size = (int(output_size[0] / math.ceil(len(inputs) / 2)), 
                  int(output_size[1] / math.floor(len(inputs) / 2))) # size for each subvideo
 
@@ -53,5 +56,4 @@ def mosaic(inputs, output_size, texts=None):
     texts = ["ard-alpha","tagesschau24","3sat","arte"]
     output_size = (640,480)
     command = mosaic(inputs,output_size,texts)
-    import os
     os.system(command)