ctrl-c ends commandline mode properly

setup.py

@@ -2,7 +2,7 @@ from setuptools import setup
 import os
 
 
-__version__ = '2.0.0.rc4'
+__version__ = '2.0.0rc5'
 
 
 def package_files(directory):

src/command.py

@@ -8,6 +8,7 @@ import argparse
 import os
 import sys
 import time
+import signal
 
 from core import Core
 
@@ -91,6 +92,9 @@ class Command(QtCore.QObject):
                 for arg in args:
                     self.core.selectedComponents[i].command(arg)
 
+        # ctrl-c stops the export thread
+        signal.signal(signal.SIGINT, self.stopVideo)
+
         if self.args.export and self.args.projpath:
             errcode, data = self.core.parseAvFile(projPath)
             for key, value in data['WindowFields']:
@@ -124,6 +128,11 @@ class Command(QtCore.QObject):
         self.worker.progressBarSetText.connect(self.progressBarSetText)
         self.createVideo.emit()
 
+    def stopVideo(self, *args):
+        self.worker.error = True
+        self.worker.cancelExport()
+        self.worker.cancel()
+
     @QtCore.pyqtSlot(str)
     def progressBarSetText(self, value):
         if 'Export ' in value:

src/components/spectrum.py

@@ -98,7 +98,8 @@ class Component(Component):
 
     def preFrameRender(self, **kwargs):
         super().preFrameRender(**kwargs)
-        self.previewPipe.wait()
+        if self.previewPipe is not None:
+            self.previewPipe.wait()
         self.updateChunksize()
         w, h = scale(self.scale, self.width, self.height, str)
         self.video = FfmpegVideo(

src/core.py

@@ -13,8 +13,8 @@ import toolkit
 
 
 log = logging.getLogger('AVP.Core')
-STDOUT_LOGLVL = logging.INFO
+STDOUT_LOGLVL = logging.WARNING
-FILE_LOGLVL = logging.VERBOSE
+FILE_LOGLVL = None
 
 
 class Core:
@@ -77,8 +77,7 @@ class Core:
         if compPos < 0 or compPos > len(self.selectedComponents):
             compPos = len(self.selectedComponents)
         if len(self.selectedComponents) > 50:
-            return None
+            return -1
-
         if type(component) is int:
             # create component using module index in self.modules
             moduleIndex = int(component)
@@ -188,7 +187,6 @@ class Core:
 
                 for key, value in data['Settings']:
                     Core.settings.setValue(key, value)
-
                 for tup in data['Components']:
                     name, vers, preset = tup
                     clearThis = False
@@ -213,7 +211,7 @@ class Core:
                         self.moduleIndexFor(name),
                         loader
                     )
-                    if i is None:
+                    if i == -1:
                         loader.showMessage(msg="Too many components!")
                         break
 

src/toolkit/frame.py

@@ -32,6 +32,7 @@ class FramePainter(QtGui.QPainter):
             super().setPen(penStyle)
 
     def finalize(self):
+        log.verbose("Finalizing FramePainter")
         imBytes = self.image.bits().asstring(self.image.byteCount())
         frame =  Image.frombytes(
             'RGBA', (self.image.width(), self.image.height()), imBytes

src/video_thread.py

@@ -252,9 +252,14 @@ class Worker(QtCore.QObject):
         print('############################')
         log.info('Opening pipe to ffmpeg')
         log.info(cmd)
-        self.out_pipe = openPipe(
+        try:
-            ffmpegCommand, stdin=sp.PIPE, stdout=sys.stdout, stderr=sys.stdout
+            self.out_pipe = openPipe(
-        )
+                ffmpegCommand,
+                stdin=sp.PIPE, stdout=sys.stdout, stderr=sys.stdout
+            )
+        except sp.CalledProcessError:
+            log.critical('Ffmpeg pipe couldn\'t be created!')
+            raise
 
         # =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~==~=~=~=~=~=~=~=~=~=~=~=~=~=~
         # START CREATING THE VIDEO