import logging import torch import random import traceback from funasr.register import tables from funasr.utils.load_utils import extract_fbank, load_audio_text_image_video @tables.register("dataset_classes", "SenseVoiceDataset") class SenseVoiceDataset(torch.utils.data.Dataset): """ SenseVoiceDataset """ def __init__( self, path, index_ds: str = None, frontend=None, tokenizer=None, int_pad_value: int = -1, float_pad_value: float = 0.0, **kwargs, ): super().__init__() index_ds_class = tables.index_ds_classes.get(index_ds) self.index_ds = index_ds_class(path, **kwargs) preprocessor_speech = kwargs.get("preprocessor_speech", None) if preprocessor_speech: preprocessor_speech_class = tables.preprocessor_classes.get(preprocessor_speech) preprocessor_speech = preprocessor_speech_class( **kwargs.get("preprocessor_speech_conf") ) self.preprocessor_speech = preprocessor_speech preprocessor_text = kwargs.get("preprocessor_text", None) if preprocessor_text: preprocessor_text_class = tables.preprocessor_classes.get(preprocessor_text) preprocessor_text = preprocessor_text_class(**kwargs.get("preprocessor_text_conf")) self.preprocessor_text = preprocessor_text self.frontend = frontend self.fs = 16000 if frontend is None else frontend.fs self.data_type = "sound" self.tokenizer = tokenizer self.int_pad_value = int_pad_value self.float_pad_value = float_pad_value self.sos = kwargs.get("sos", "<|startoftranscript|>") self.eos = kwargs.get("eos", "<|endoftext|>") self.batch_size = kwargs.get("batch_size") self.batch_type = kwargs.get("batch_type") self.prompt_ids_len = 0 self.retry = kwargs.get("retry", 5) self.permute = False from funasr.frontends.whisper_frontend import WhisperFrontend if isinstance(self.frontend, WhisperFrontend): self.permute = True def get_source_len(self, index): item = self.index_ds[index] return self.index_ds.get_source_len(item) def get_target_len(self, index): item = self.index_ds[index] return self.index_ds.get_target_len(item) def __len__(self): return len(self.index_ds) def __getitem__(self, index): # import pdb; # pdb.set_trace() output = None for idx in range(self.retry): if idx == 0: index_cur = index else: index_cur = torch.randint(0, len(self.index_ds), ()).item() item = self.index_ds[index_cur] source = item["source"] try: data_src = load_audio_text_image_video(source, fs=self.fs) except Exception as e: logging.error(f"Loading wav failed! {str(e)}, {traceback.format_exc()}") continue if self.preprocessor_speech: data_src = self.preprocessor_speech(data_src, fs=self.fs) speech, speech_lengths = extract_fbank( data_src, data_type=self.data_type, frontend=self.frontend, is_final=True ) # speech: [b, T, d] if speech_lengths > self.batch_size: continue if self.permute: speech = speech.permute(0, 2, 1) target = item["target"] if self.preprocessor_text: target = self.preprocessor_text(target) task = item.get("prompt", "<|ASR|>") text_language = item.get("text_language", "<|zh|>") if isinstance(self.sos, str): prompt = f"{self.sos}{task}{text_language}" prompt_ids = self.tokenizer.encode(prompt, allowed_special="all") else: prompt = f"{task}{text_language}" prompt_ids = self.tokenizer.encode(prompt, allowed_special="all") prompt_ids = [self.sos] + prompt_ids prompt_ids_len = len(prompt_ids) - 1 # [sos, task] self.prompt_ids_len = prompt_ids_len target_ids = self.tokenizer.encode(target, allowed_special="all") target_ids_len = len(target_ids) + 1 # [lid, text] if target_ids_len > 200: continue if isinstance(self.eos, str): eos = self.tokenizer.encode(self.eos, allowed_special="all") # [eos] else: eos = [self.eos] ids = prompt_ids + target_ids + eos # [sos, task, lid, text, eos] ids_lengths = len(ids) text = torch.tensor(ids, dtype=torch.int64) text_lengths = torch.tensor([ids_lengths], dtype=torch.int32) target_mask = ( [0] * (prompt_ids_len) + [1] * (target_ids_len) + [1] ) # [sos, task, lid, text, eos]: [0, 0, 1, 1, 1] target_mask_lengths = len(target_mask) target_mask = torch.tensor(target_mask, dtype=torch.float32) target_mask_lengths = torch.tensor([target_mask_lengths], dtype=torch.int32) output = { "speech": speech[0, :, :], "speech_lengths": speech_lengths, "text": text, "text_lengths": text_lengths, "target_mask": target_mask, "target_mask_lengths": target_mask_lengths, } break return output def collator(self, samples: list = None): outputs = {} for sample in samples: if sample is None: continue for key in sample.keys(): if key not in outputs: outputs[key] = [] outputs[key].append(sample[key]) if len(outputs) < 1: logging.error(f"ERROR: data is empty!") outputs = { "speech": torch.rand((10, 128), dtype=torch.float32)[None, :, :], "speech_lengths": torch.tensor( [ 10, ], dtype=torch.int32, )[:, None], "text": torch.tensor( [ 58836, ], dtype=torch.int32, )[None, :], "text_lengths": torch.tensor( [ 1, ], dtype=torch.int32, )[:, None], "target_mask": torch.tensor([[0] * (self.prompt_ids_len) + [1] * (1) + [1]])[ None, : ], } return outputs for key, data_list in outputs.items(): if isinstance(data_list[0], torch.Tensor): if data_list[0].dtype == torch.int64 or data_list[0].dtype == torch.int32: pad_value = self.int_pad_value else: pad_value = self.float_pad_value outputs[key] = torch.nn.utils.rnn.pad_sequence( data_list, batch_first=True, padding_value=pad_value ) if self.batch_type != "example": for i in range(10): outputs = self._filter_badcase(outputs, i=i) return outputs def _filter_badcase(self, outputs, i=0): b, t, _ = outputs["speech"].shape if b * t > self.batch_size * 1.25: beg = torch.randint(0, 2, ()).item() if b < 2: beg = 0 logging.info( f"Warning, b * t: {b * t} > {self.batch_size}, drop half data {i}th, beg:{beg}" ) for key, data_list in outputs.items(): outputs[key] = outputs[key][beg : beg + b : 2] speech_lengths_max = outputs["speech_lengths"].max().item() outputs["speech"] = outputs["speech"][:, :speech_lengths_max, :] text_lengths_max = outputs["text_lengths"].max().item() outputs["text"] = outputs["text"][:, :text_lengths_max] target_mask_lengths_max = outputs["target_mask_lengths"].max().item() outputs["target_mask"] = outputs["target_mask"][:, :target_mask_lengths_max] return outputs