jmwang66
2023-06-29 98abc0e5ac1a1da0fe1802d9ffb623802fbf0b2f
funasr/models/encoder/sanm_encoder.py
@@ -8,7 +8,6 @@
import torch.nn as nn
import torch.nn.functional as F
from funasr.modules.streaming_utils.chunk_utilis import overlap_chunk
from typeguard import check_argument_types
import numpy as np
from funasr.torch_utils.device_funcs import to_device
from funasr.modules.nets_utils import make_pad_mask
@@ -27,9 +26,10 @@
from funasr.modules.subsampling import Conv2dSubsampling8
from funasr.modules.subsampling import TooShortUttError
from funasr.modules.subsampling import check_short_utt
from funasr.modules.mask import subsequent_mask, vad_mask
from funasr.models.ctc import CTC
from funasr.models.encoder.abs_encoder import AbsEncoder
from funasr.modules.mask import subsequent_mask, vad_mask
class EncoderLayerSANM(nn.Module):
    def __init__(
@@ -150,7 +150,6 @@
        tf2torch_tensor_name_prefix_torch: str = "encoder",
        tf2torch_tensor_name_prefix_tf: str = "seq2seq/encoder",
    ):
        assert check_argument_types()
        super().__init__()
        self._output_size = output_size
@@ -354,18 +353,9 @@
    def _add_overlap_chunk(self, feats: np.ndarray, cache: dict = {}):
        if len(cache) == 0:
            return feats
        # process last chunk
        cache["feats"] = to_device(cache["feats"], device=feats.device)
        overlap_feats = torch.cat((cache["feats"], feats), dim=1)
        if cache["is_final"]:
            cache["feats"] = overlap_feats[:, -cache["chunk_size"][0]:, :]
            if not cache["last_chunk"]:
               padding_length = sum(cache["chunk_size"]) - overlap_feats.shape[1]
               overlap_feats = overlap_feats.transpose(1, 2)
               overlap_feats = F.pad(overlap_feats, (0, padding_length))
               overlap_feats = overlap_feats.transpose(1, 2)
        else:
            cache["feats"] = overlap_feats[:, -(cache["chunk_size"][0] + cache["chunk_size"][2]):, :]
        cache["feats"] = overlap_feats[:, -(cache["chunk_size"][0] + cache["chunk_size"][2]):, :]
        return overlap_feats
    def forward_chunk(self,
@@ -379,7 +369,10 @@
            xs_pad = xs_pad
        else:
            xs_pad = self.embed(xs_pad, cache)
        xs_pad = self._add_overlap_chunk(xs_pad, cache)
        if cache["tail_chunk"]:
            xs_pad = to_device(cache["feats"], device=xs_pad.device)
        else:
            xs_pad = self._add_overlap_chunk(xs_pad, cache)
        encoder_outs = self.encoders0(xs_pad, None, None, None, None)
        xs_pad, masks = encoder_outs[0], encoder_outs[1]
        intermediate_outs = []
@@ -606,7 +599,6 @@
            tf2torch_tensor_name_prefix_torch: str = "encoder",
            tf2torch_tensor_name_prefix_tf: str = "seq2seq/encoder",
    ):
        assert check_argument_types()
        super().__init__()
        self._output_size = output_size
@@ -638,6 +630,8 @@
                self.embed = torch.nn.Linear(input_size, output_size)
        elif input_layer == "pe":
            self.embed = SinusoidalPositionEncoder()
        elif input_layer == "pe_online":
            self.embed = StreamSinusoidalPositionEncoder()
        else:
            raise ValueError("unknown input_layer: " + input_layer)
        self.normalize_before = normalize_before
@@ -822,6 +816,59 @@
        if len(intermediate_outs) > 0:
            return (xs_pad, intermediate_outs), olens, None
        return xs_pad, olens, None
    def _add_overlap_chunk(self, feats: np.ndarray, cache: dict = {}):
        if len(cache) == 0:
            return feats
        cache["feats"] = to_device(cache["feats"], device=feats.device)
        overlap_feats = torch.cat((cache["feats"], feats), dim=1)
        cache["feats"] = overlap_feats[:, -(cache["chunk_size"][0] + cache["chunk_size"][2]):, :]
        return overlap_feats
    def forward_chunk(self,
                      xs_pad: torch.Tensor,
                      ilens: torch.Tensor,
                      cache: dict = None,
                      ctc: CTC = None,
                      ):
        xs_pad *= self.output_size() ** 0.5
        if self.embed is None:
            xs_pad = xs_pad
        else:
            xs_pad = self.embed(xs_pad, cache)
        if cache["tail_chunk"]:
            xs_pad = to_device(cache["feats"], device=xs_pad.device)
        else:
            xs_pad = self._add_overlap_chunk(xs_pad, cache)
        encoder_outs = self.encoders0(xs_pad, None, None, None, None)
        xs_pad, masks = encoder_outs[0], encoder_outs[1]
        intermediate_outs = []
        if len(self.interctc_layer_idx) == 0:
            encoder_outs = self.encoders(xs_pad, None, None, None, None)
            xs_pad, masks = encoder_outs[0], encoder_outs[1]
        else:
            for layer_idx, encoder_layer in enumerate(self.encoders):
                encoder_outs = encoder_layer(xs_pad, None, None, None, None)
                xs_pad, masks = encoder_outs[0], encoder_outs[1]
                if layer_idx + 1 in self.interctc_layer_idx:
                    encoder_out = xs_pad
                    # intermediate outputs are also normalized
                    if self.normalize_before:
                        encoder_out = self.after_norm(encoder_out)
                    intermediate_outs.append((layer_idx + 1, encoder_out))
                    if self.interctc_use_conditioning:
                        ctc_out = ctc.softmax(encoder_out)
                        xs_pad = xs_pad + self.conditioning_layer(ctc_out)
        if self.normalize_before:
            xs_pad = self.after_norm(xs_pad)
        if len(intermediate_outs) > 0:
            return (xs_pad, intermediate_outs), None, None
        return xs_pad, ilens, None
    def gen_tf2torch_map_dict(self):
        tensor_name_prefix_torch = self.tf2torch_tensor_name_prefix_torch
@@ -1010,7 +1057,6 @@
        sanm_shfit : int = 0,
        selfattention_layer_type: str = "sanm",
    ):
        assert check_argument_types()
        super().__init__()
        self._output_size = output_size