python/FunASR-XL.git

			@@ -17,9 +17,6 @@
			from distutils.version import LooseVersion

			from funasr.register import tables
			from funasr.losses.label_smoothing_loss import (
			LabelSmoothingLoss, # noqa: H301
			)
			from funasr.utils import postprocess_utils
			from funasr.metrics.compute_acc import th_accuracy
			from funasr.models.paraformer.model import Paraformer
			@@ -63,13 +60,10 @@
			crit_attn_smooth = kwargs.get("crit_attn_smooth", 0.0)
			bias_encoder_dropout_rate = kwargs.get("bias_encoder_dropout_rate", 0.0)


			if bias_encoder_type == 'lstm':
			logging.warning("enable bias encoder sampling and contextual training")
			self.bias_encoder = torch.nn.LSTM(inner_dim, inner_dim, 1, batch_first=True, dropout=bias_encoder_dropout_rate)
			self.bias_embed = torch.nn.Embedding(self.vocab_size, inner_dim)
			elif bias_encoder_type == 'mean':
			logging.warning("enable bias encoder sampling and contextual training")
			self.bias_embed = torch.nn.Embedding(self.vocab_size, inner_dim)
			else:
			logging.error("Unsupport bias encoder type: {}".format(bias_encoder_type))
			@@ -83,7 +77,6 @@
			if self.crit_attn_weight > 0:
			self.attn_loss = torch.nn.L1Loss()
			self.crit_attn_smooth = crit_attn_smooth


			def forward(
			self,
			@@ -101,21 +94,18 @@
			text: (Batch, Length)
			text_lengths: (Batch,)
			"""
			if len(text_lengths.size()) > 1:
			text_lengths = text_lengths[:, 0]
			if len(speech_lengths.size()) > 1:
			speech_lengths = speech_lengths[:, 0]

			text_lengths = text_lengths.squeeze()
			speech_lengths = speech_lengths.squeeze()

			batch_size = speech.shape[0]

			hotword_pad = kwargs.get("hotword_pad")
			hotword_lengths = kwargs.get("hotword_lengths")
			dha_pad = kwargs.get("dha_pad")

			# dha_pad = kwargs.get("dha_pad")

			# 1. Encoder
			encoder_out, encoder_out_lens = self.encode(speech, speech_lengths)


			loss_ctc, cer_ctc = None, None

			stats = dict()
			@@ -130,12 +120,11 @@
			stats["loss_ctc"] = loss_ctc.detach() if loss_ctc is not None else None
			stats["cer_ctc"] = cer_ctc


			# 2b. Attention decoder branch
			loss_att, acc_att, cer_att, wer_att, loss_pre, loss_ideal = self._calc_att_clas_loss(
			encoder_out, encoder_out_lens, text, text_lengths, hotword_pad, hotword_lengths
			)


			# 3. CTC-Att loss definition
			if self.ctc_weight == 0.0:
			loss = loss_att + loss_pre * self.predictor_weight
			@@ -161,7 +150,6 @@
			loss, stats, weight = force_gatherable((loss, stats, batch_size), loss.device)
			return loss, stats, weight


			def _calc_att_clas_loss(
			self,
			encoder_out: torch.Tensor,
			@@ -173,34 +161,33 @@
			):
			encoder_out_mask = (~make_pad_mask(encoder_out_lens, maxlen=encoder_out.size(1))[:, None, :]).to(
			encoder_out.device)

			if self.predictor_bias == 1:
			_, ys_pad = add_sos_eos(ys_pad, self.sos, self.eos, self.ignore_id)
			ys_pad_lens = ys_pad_lens + self.predictor_bias

			pre_acoustic_embeds, pre_token_length, _, _ = self.predictor(encoder_out, ys_pad, encoder_out_mask,
			ignore_id=self.ignore_id)

			# -1. bias encoder
			if self.use_decoder_embedding:
			hw_embed = self.decoder.embed(hotword_pad)
			else:
			hw_embed = self.bias_embed(hotword_pad)

			hw_embed, (_, _) = self.bias_encoder(hw_embed)
			_ind = np.arange(0, hotword_pad.shape[0]).tolist()
			selected = hw_embed[_ind, [i - 1 for i in hotword_lengths.detach().cpu().tolist()]]
			contextual_info = selected.squeeze(0).repeat(ys_pad.shape[0], 1, 1).to(ys_pad.device)


			# 0. sampler
			decoder_out_1st = None
			if self.sampling_ratio > 0.0:
			if self.step_cur < 2:
			logging.info("enable sampler in paraformer, sampling_ratio: {}".format(self.sampling_ratio))

			sematic_embeds, decoder_out_1st = self.sampler(encoder_out, encoder_out_lens, ys_pad, ys_pad_lens,
			pre_acoustic_embeds, contextual_info)
			else:
			if self.step_cur < 2:
			logging.info("disable sampler in paraformer, sampling_ratio: {}".format(self.sampling_ratio))
			sematic_embeds = pre_acoustic_embeds


			# 1. Forward decoder
			decoder_outs = self.decoder(
			encoder_out, encoder_out_lens, sematic_embeds, ys_pad_lens, contextual_info=contextual_info
			@@ -216,7 +203,7 @@
			loss_ideal = None
			'''
			loss_ideal = None


			if decoder_out_1st is None:
			decoder_out_1st = decoder_out
			# 2. Compute attention loss
			@@ -236,7 +223,6 @@
			cer_att, wer_att = self.error_calculator(ys_hat.cpu(), ys_pad.cpu())

			return loss_att, acc_att, cer_att, wer_att, loss_pre, loss_ideal


			def sampler(self, encoder_out, encoder_out_lens, ys_pad, ys_pad_lens, pre_acoustic_embeds, contextual_info):
			tgt_mask = (~make_pad_mask(ys_pad_lens, maxlen=ys_pad_lens.max())[:, :, None]).to(ys_pad.device)
			@@ -270,7 +256,6 @@
			input_mask_expand_dim, 0)
			return sematic_embeds * tgt_mask, decoder_out * tgt_mask


			def cal_decoder_with_predictor(self, encoder_out, encoder_out_lens, sematic_embeds, ys_pad_lens, hw_list=None,
			clas_scale=1.0):
			if hw_list is None:
			@@ -293,10 +278,11 @@
			enforce_sorted=False)
			_, (h_n, _) = self.bias_encoder(hw_embed)
			hw_embed = h_n.repeat(encoder_out.shape[0], 1, 1)


			decoder_outs = self.decoder(
			encoder_out, encoder_out_lens, sematic_embeds, ys_pad_lens, contextual_info=hw_embed, clas_scale=clas_scale
			)

			decoder_out = decoder_outs[0]
			decoder_out = torch.log_softmax(decoder_out, dim=-1)
			return decoder_out, ys_pad_lens
			@@ -310,38 +296,42 @@
			**kwargs,
			):
			# init beamsearch

			is_use_ctc = kwargs.get("decoding_ctc_weight", 0.0) > 0.00001 and self.ctc != None
			is_use_lm = kwargs.get("lm_weight", 0.0) > 0.00001 and kwargs.get("lm_file", None) is not None
			if self.beam_search is None and (is_use_lm or is_use_ctc):
			logging.info("enable beam_search")
			self.init_beam_search(**kwargs)
			self.nbest = kwargs.get("nbest", 1)


			meta_data = {}

			# extract fbank feats
			time1 = time.perf_counter()

			audio_sample_list = load_audio_text_image_video(data_in, fs=frontend.fs, audio_fs=kwargs.get("fs", 16000))

			time2 = time.perf_counter()
			meta_data["load_data"] = f"{time2 - time1:0.3f}"

			speech, speech_lengths = extract_fbank(audio_sample_list, data_type=kwargs.get("data_type", "sound"),
			frontend=frontend)
			time3 = time.perf_counter()
			meta_data["extract_feat"] = f"{time3 - time2:0.3f}"
			meta_data[
			"batch_data_time"] = speech_lengths.sum().item() * frontend.frame_shift * frontend.lfr_n / 1000


			speech = speech.to(device=kwargs["device"])
			speech_lengths = speech_lengths.to(device=kwargs["device"])

			# hotword
			self.hotword_list = self.generate_hotwords_list(kwargs.get("hotword", None), tokenizer=tokenizer, frontend=frontend)


			# Encoder
			encoder_out, encoder_out_lens = self.encode(speech, speech_lengths)
			if isinstance(encoder_out, tuple):
			encoder_out = encoder_out[0]


			# predictor
			predictor_outs = self.calc_predictor(encoder_out, encoder_out_lens)
			pre_acoustic_embeds, pre_token_length, alphas, pre_peak_index = predictor_outs[0], predictor_outs[1], \
			@@ -349,8 +339,7 @@
			pre_token_length = pre_token_length.round().long()
			if torch.max(pre_token_length) < 1:
			return []



			decoder_outs = self.cal_decoder_with_predictor(encoder_out, encoder_out_lens,
			pre_acoustic_embeds,
			pre_token_length,
			@@ -382,9 +371,11 @@
			nbest_hyps = [Hypothesis(yseq=yseq, score=score)]
			for nbest_idx, hyp in enumerate(nbest_hyps):
			ibest_writer = None
			if ibest_writer is None and kwargs.get("output_dir") is not None:
			writer = DatadirWriter(kwargs.get("output_dir"))
			ibest_writer = writer[f"{nbest_idx + 1}best_recog"]
			if kwargs.get("output_dir") is not None:
			if not hasattr(self, "writer"):
			self.writer = DatadirWriter(kwargs.get("output_dir"))
			ibest_writer = self.writer[f"{nbest_idx + 1}best_recog"]

			# remove sos/eos and get results
			last_pos = -1
			if isinstance(hyp.yseq, list):
			@@ -413,7 +404,6 @@
			results.append(result_i)

			return results, meta_data


			def generate_hotwords_list(self, hotword_list_or_file, tokenizer=None, frontend=None):
			def load_seg_dict(seg_dict_file):
			@@ -516,3 +506,12 @@
			hotword_list = None
			return hotword_list

			def export(
			self,
			**kwargs,
			):
			if 'max_seq_len' not in kwargs:
			kwargs['max_seq_len'] = 512
			from .export_meta import export_rebuild_model
			models = export_rebuild_model(model=self, **kwargs)
			return models