Source code for gnes.preprocessor.audio.audio_vanilla

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import numpy as np

from ..base import BaseAudioPreprocessor
from ..helper import get_video_length_from_raw, get_audio
from ...proto import array2blob


[docs]class AudioVanilla(BaseAudioPreprocessor): def __init__(self, audio_interval: int, sample_rate: int, *args, **kwargs): super().__init__(*args, **kwargs) self.audio_interval = audio_interval self.sample_rate = sample_rate
[docs] def apply(self, doc: 'gnes_pb2.Document') -> None: super().apply(doc) if doc.raw_bytes: audio = get_audio(doc.raw_bytes, self.sample_rate, self.audio_interval, get_video_length_from_raw(doc.raw_bytes)) if len(audio) >= 1: for ci, chunks in enumerate(audio): c = doc.chunks.add() c.doc_id = doc.doc_id c.blob.CopyFrom(array2blob(np.array(chunks, dtype=np.float32))) c.offset_1d = ci c.weight = 1 / len(audio) else: self.logger.info('bad document: no audio extracted') else: self.logger.error('bad document: "raw_bytes" is empty!')