[postprocessor/ffmpeg] Fix crash when ffprobe/avprobe are not installed (closes #5349)
'self.probe_basename' was None, so 'probe_executable' raised a KeyError exception
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		| @@ -116,6 +116,10 @@ class FFmpegPostProcessor(PostProcessor): | |||||||
|     def executable(self): |     def executable(self): | ||||||
|         return self._paths[self.basename] |         return self._paths[self.basename] | ||||||
|  |  | ||||||
|  |     @property | ||||||
|  |     def probe_available(self): | ||||||
|  |         return self.probe_basename is not None | ||||||
|  |  | ||||||
|     @property |     @property | ||||||
|     def probe_executable(self): |     def probe_executable(self): | ||||||
|         return self._paths[self.probe_basename] |         return self._paths[self.probe_basename] | ||||||
| @@ -168,7 +172,7 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor): | |||||||
|  |  | ||||||
|     def get_audio_codec(self, path): |     def get_audio_codec(self, path): | ||||||
|  |  | ||||||
|         if not self.probe_executable: |         if not self.probe_available: | ||||||
|             raise PostProcessingError('ffprobe or avprobe not found. Please install one.') |             raise PostProcessingError('ffprobe or avprobe not found. Please install one.') | ||||||
|         try: |         try: | ||||||
|             cmd = [ |             cmd = [ | ||||||
|   | |||||||
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	 Jaime Marquínez Ferrándiz
					Jaime Marquínez Ferrándiz