| | |
| | | @tables.register("model_classes", "LLMASR") |
| | | class LLMASR(nn.Module): |
| | | """ """ |
| | | |
| | | |
| | | def __init__( |
| | | self, |
| | | specaug: str = None, |
| | |
| | | # postencoder: Optional[AbsPostEncoder] = None, |
| | | **kwargs, |
| | | ): |
| | | |
| | | |
| | | super().__init__() |
| | | |
| | | |
| | | if specaug is not None: |
| | | specaug_class = tables.specaug_classes.get(specaug) |
| | | specaug = specaug_class(**specaug_conf) |
| | | if normalize is not None: |
| | | normalize_class = tables.normalize_classes.get(normalize) |
| | | normalize = normalize_class(**normalize_conf) |
| | | |
| | | |
| | | # audio encoder |
| | | hub = audio_encoder_conf.get("hub", None) |
| | | if hub == "ms": |
| | | from funasr import AutoModel |
| | | model = AutoModel(model=audio_encoder, model_revision="v2.0.4") |
| | | |
| | | model = AutoModel(model=audio_encoder, model_revision="master") |
| | | # frontend = model.kwargs.get("frontend") |
| | | audio_encoder_output_size = model.model.encoder_output_size |
| | | |
| | | audio_encoder = model.model.model.encoder |
| | | |
| | | |
| | | # self.frontend = frontend |
| | | |
| | | |
| | | elif hub == "hf": |
| | | pass |
| | | else: |
| | |
| | | for name, param in audio_encoder.named_parameters(): |
| | | param.requires_grad = False |
| | | audio_encoder.eval() |
| | | |
| | | |
| | | self.audio_encoder = audio_encoder |
| | | |
| | | # llm |
| | |
| | | from transformers import AutoModelForCausalLM, AutoTokenizer, AutoConfig |
| | | |
| | | init_param_path = llm_conf.get("init_param_path", "vicuna-7b-v1.5") |
| | | |
| | | |
| | | model = AutoModelForCausalLM.from_pretrained( |
| | | init_param_path, |
| | | load_in_8bit=None, |
| | |
| | | param.requires_grad = False |
| | | model.eval() |
| | | self.llm = model |
| | | |
| | | |
| | | # adaptor |
| | | adaptor_class = tables.adaptor_classes.get(audio_adaptor) |
| | | audio_adaptor_conf["encoder_dim"] = audio_encoder_output_size |
| | | audio_adaptor = adaptor_class(**audio_adaptor_conf) |
| | | |
| | | |
| | | self.audio_adaptor = audio_adaptor |
| | | |
| | | |
| | | |
| | | self.blank_id = blank_id |
| | | self.sos = sos if sos is not None else vocab_size - 1 |
| | | self.eos = eos if eos is not None else vocab_size - 1 |
| | |
| | | |
| | | self.length_normalized_loss = length_normalized_loss |
| | | self.beam_search = None |
| | | |
| | | |
| | | def forward( |
| | | self, |
| | | speech: torch.Tensor, |
| | |
| | | text: torch.Tensor, |
| | | text_lengths: torch.Tensor, |
| | | input_ids: torch.Tensor, |
| | | attention_mask:torch.Tensor, |
| | | attention_mask: torch.Tensor, |
| | | labels_ids: torch.Tensor, |
| | | label_mask: torch.Tensor, |
| | | audio_mask: torch.Tensor, |
| | |
| | | text_lengths = text_lengths[:, 0] |
| | | if len(speech_lengths.size()) > 1: |
| | | speech_lengths = speech_lengths[:, 0] |
| | | |
| | | |
| | | batch_size = speech.shape[0] |
| | | |
| | | |
| | | # audio encoder |
| | | encoder_out, encoder_out_lens = self.encode(speech, speech_lengths) |
| | | |
| | | |
| | | # audio_adaptor |
| | | encoder_out = self.audio_adaptor(encoder_out) |
| | | |
| | | |
| | | input_ids[input_ids == -1] = 0 |
| | | input_ids[input_ids == -100] = 0 |
| | | if hasattr(self.llm.model, "embed_tokens"): |
| | |
| | | _, l, _ = encoder_out.shape |
| | | # [audio, bos, prompt, input, pad] |
| | | encoder_outs_pad = F.pad(encoder_out, (0, 0, 0, token_num - l, 0, 0), value=0.0) |
| | | inputs_embeds = encoder_outs_pad * audio_mask[:, :, None] + inputs_embeds * (1.0-audio_mask[:, :, None]) |
| | | inputs_embeds = encoder_outs_pad * audio_mask[:, :, None] + inputs_embeds * ( |
| | | 1.0 - audio_mask[:, :, None] |
| | | ) |
| | | |
| | | model_outputs = self.llm(inputs_embeds=inputs_embeds, attention_mask=attention_mask, labels=labels_ids) |
| | | model_outputs = self.llm( |
| | | inputs_embeds=inputs_embeds, attention_mask=attention_mask, labels=labels_ids |
| | | ) |
| | | loss = model_outputs.loss |
| | | |
| | | |
| | | stats = {} |
| | | with torch.no_grad(): |
| | |
| | | return loss, stats, weight |
| | | |
| | | def encode( |
| | | self, speech: torch.Tensor, speech_lengths: torch.Tensor, **kwargs, |
| | | self, |
| | | speech: torch.Tensor, |
| | | speech_lengths: torch.Tensor, |
| | | **kwargs, |
| | | ): |
| | | speech = speech.permute(0, 2, 1) |
| | | res = self.audio_encoder(speech) |
| | | if len(res) > 1: |
| | | if isinstance(res, (list, tuple)): |
| | | encoder_out, encoder_out_lens = res[0], res[1] |
| | | else: |
| | | encoder_out, encoder_out_lens = res, speech_lengths |
| | | return encoder_out, encoder_out_lens |
| | | |
| | | def inference(self, |
| | | data_in, |
| | | data_lengths=None, |
| | | key: list = None, |
| | | tokenizer=None, |
| | | frontend=None, |
| | | **kwargs, |
| | | ): |
| | | |
| | | |
| | | def inference( |
| | | self, |
| | | data_in, |
| | | data_lengths=None, |
| | | key: list = None, |
| | | tokenizer=None, |
| | | frontend=None, |
| | | **kwargs, |
| | | ): |
| | | |
| | | prompt = kwargs.get("prompt", "Transcribe speech to text.") |
| | | |
| | | |
| | | if kwargs.get("batch_size", 1) > 1: |
| | | raise NotImplementedError("batch decoding is not implemented") |
| | | |
| | | |
| | | |
| | | meta_data = {} |
| | | if isinstance(data_in, torch.Tensor) and kwargs.get("data_type", "sound") == "fbank": # fbank |
| | | if ( |
| | | isinstance(data_in, torch.Tensor) and kwargs.get("data_type", "sound") == "fbank" |
| | | ): # fbank |
| | | speech, speech_lengths = data_in, data_lengths |
| | | if len(speech.shape) < 3: |
| | | speech = speech[None, :, :] |
| | |
| | | else: |
| | | # 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), |
| | | data_type=kwargs.get("data_type", "sound"), |
| | | tokenizer=tokenizer) |
| | | audio_sample_list = load_audio_text_image_video( |
| | | data_in, |
| | | fs=frontend.fs, |
| | | audio_fs=kwargs.get("fs", 16000), |
| | | data_type=kwargs.get("data_type", "sound"), |
| | | tokenizer=tokenizer, |
| | | ) |
| | | 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) |
| | | 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 |
| | | |
| | | 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"]) |
| | | |
| | | |
| | | # Encoder |
| | | encoder_out, encoder_out_lens = self.encode(speech, speech_lengths) |
| | | |
| | | # adaptor |
| | | encoder_out = self.audio_adaptor(encoder_out) |
| | | |
| | | |
| | | |
| | | prompt_pre = "USER: \nINSTRUCTION: {}\nINPUT: ".format(prompt) |
| | | prompt_ids = tokenizer.encode(prompt_pre) |
| | | prompt_length = len(prompt_ids) |
| | | prompt_ids = torch.tensor(prompt_ids, dtype=torch.int64).to(kwargs["device"]) |
| | | |
| | | |
| | | if hasattr(self.llm.model, "embed_tokens"): |
| | | inputs_embeds = self.llm.model.embed_tokens(prompt_ids) |
| | |
| | | else: |
| | | inputs_embeds = self.llm.model.model.model.embed_tokens(prompt_ids) |
| | | |
| | | inputs_embeds = torch.cat((inputs_embeds[None, :, :], encoder_out), dim=1) # [prompt, audio] |
| | | attention_mask = torch.ones(inputs_embeds.size()[:-1], dtype=torch.long).to(kwargs["device"]) |
| | | |
| | | inputs_embeds = torch.cat( |
| | | (inputs_embeds[None, :, :], encoder_out), dim=1 |
| | | ) # [prompt, audio] |
| | | attention_mask = torch.ones(inputs_embeds.size()[:-1], dtype=torch.long).to( |
| | | kwargs["device"] |
| | | ) |
| | | |
| | | preds = self.llm.generate( |
| | | inputs_embeds=inputs_embeds, |
| | | max_length=kwargs.get("max_length", 200), |
| | |
| | | attention_mask=attention_mask, |
| | | bos_token_id=tokenizer.bos_token_id, |
| | | eos_token_id=tokenizer.eos_token_id, |
| | | pad_token_id=tokenizer.pad_token_id |
| | | pad_token_id=tokenizer.pad_token_id, |
| | | ) |
| | | |
| | | |
| | | text = tokenizer.batch_decode(preds, add_special_tokens=False, skip_special_tokens=True) |
| | | |
| | | text = text[0].split(': ')[-1] |
| | | text = text[0].split(": ")[-1] |
| | | text = text.strip() |
| | | |
| | | |
| | | # preds = torch.argmax(model_outputs.logits, -1) |
| | | |
| | | |
| | | ibest_writer = None |
| | | if kwargs.get("output_dir") is not None: |
| | | if not hasattr(self, "writer"): |
| | |
| | | |
| | | if ibest_writer is not None: |
| | | ibest_writer["text"][key[0]] = text |
| | | |
| | | |
| | | |
| | | |
| | | return results, meta_data |
| | | |
| | | return results, meta_data |