mirror of
https://github.com/KevinMidboe/spotify-downloader.git
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57 lines
1.4 KiB
Python
57 lines
1.4 KiB
Python
import os
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from abc import ABC
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from abc import abstractmethod
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"""
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NOTE ON ENCODERS
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================
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* A comparision between FFmpeg, avconv, and libav:
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https://stackoverflow.com/questions/9477115
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* FFmeg encoders sorted in descending order based
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on the quality of audio produced:
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libopus > libvorbis >= libfdk_aac > aac > libmp3lame
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* libfdk_aac encoder, due to copyrights needs to be compiled
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by end user on MacOS brew install ffmpeg --with-fdk-aac
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will do just that. Other OS? See:
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https://trac.ffmpeg.org/wiki/Encode/AAC
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"""
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class EncoderBase(ABC):
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@abstractmethod
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def __init__(self, encoder_path, loglevel, additional_arguments):
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self.encoder_path = encoder_path
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self._loglevel = loglevel
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self._additional_arguments = additional_arguments
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@abstractmethod
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def set_argument(self, argument):
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self._additional_arguments += argument.split()
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@abstractmethod
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def get_encoding(self, filename):
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_, extension = os.path.splitext(filename)
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# Ignore the initial dot from file extension
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return extension[1:]
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@abstractmethod
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def set_debuglog(self):
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pass
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@abstractmethod
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def _generate_encode_command(self, input_file, output_file):
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pass
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@abstractmethod
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def _generate_encoding_arguments(self, input_encoding, output_encoding):
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pass
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@abstractmethod
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def re_encode(self, input_encoding, output_encoding):
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pass
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