remove processing
Browse files- processing_phi4mm.py +0 -733
processing_phi4mm.py
DELETED
|
@@ -1,733 +0,0 @@
|
|
| 1 |
-
# Copyright 2024 Microsoft and the HuggingFace Inc. team. All rights reserved.
|
| 2 |
-
#
|
| 3 |
-
# Licensed under the Apache License, Version 2.0 (the "License");
|
| 4 |
-
# you may not use this file except in compliance with the License.
|
| 5 |
-
# You may obtain a copy of the License at
|
| 6 |
-
#
|
| 7 |
-
# http://www.apache.org/licenses/LICENSE-2.0
|
| 8 |
-
#
|
| 9 |
-
# Unless required by applicable law or agreed to in writing, software
|
| 10 |
-
# distributed under the License is distributed on an "AS IS" BASIS,
|
| 11 |
-
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
| 12 |
-
# See the License for the specific language governing permissions and
|
| 13 |
-
# limitations under the License.
|
| 14 |
-
|
| 15 |
-
"""
|
| 16 |
-
Processor class for Phi4MM
|
| 17 |
-
"""
|
| 18 |
-
import re
|
| 19 |
-
from typing import List, Optional, Tuple, Union
|
| 20 |
-
import math
|
| 21 |
-
from enum import Enum
|
| 22 |
-
|
| 23 |
-
import numpy as np
|
| 24 |
-
import scipy
|
| 25 |
-
import torch
|
| 26 |
-
import torchvision
|
| 27 |
-
|
| 28 |
-
from transformers import AutoFeatureExtractor, AutoImageProcessor
|
| 29 |
-
from transformers.feature_extraction_sequence_utils import SequenceFeatureExtractor
|
| 30 |
-
from transformers.image_processing_utils import BaseImageProcessor, BatchFeature
|
| 31 |
-
from transformers.image_utils import (
|
| 32 |
-
ImageInput,
|
| 33 |
-
make_list_of_images,
|
| 34 |
-
valid_images,
|
| 35 |
-
)
|
| 36 |
-
from transformers.processing_utils import ProcessorMixin
|
| 37 |
-
from transformers.tokenization_utils_base import PaddingStrategy, TextInput, TruncationStrategy
|
| 38 |
-
from transformers.utils import TensorType, logging
|
| 39 |
-
from torch.nn.utils.rnn import pad_sequence
|
| 40 |
-
|
| 41 |
-
|
| 42 |
-
logger = logging.get_logger(__name__)
|
| 43 |
-
|
| 44 |
-
# Special tokens
|
| 45 |
-
_COMPATIBLE_IMAGE_SPECIAL_TOKEN_PATTERN = r'<\|image_\d+\|>' # For backward compatibility
|
| 46 |
-
_COMPATIBLE_AUDIO_SPECIAL_TOKEN_PATTERN = r'<\|audio_\d+\|>' # For backward compatibility
|
| 47 |
-
_IMAGE_SPECIAL_TOKEN = '<|endoftext10|>'
|
| 48 |
-
_AUDIO_SPECIAL_TOKEN = '<|endoftext11|>'
|
| 49 |
-
_IMAGE_SPECIAL_TOKEN_ID = 200010 # '<|endoftext10|>', or we can better name it (in `tokenizer_config.json`)
|
| 50 |
-
_AUDIO_SPECIAL_TOKEN_ID = 200011 # '<|endoftext11|>'
|
| 51 |
-
|
| 52 |
-
|
| 53 |
-
class InputMode(Enum):
|
| 54 |
-
LANGUAGE = 0
|
| 55 |
-
VISION = 1
|
| 56 |
-
SPEECH = 2
|
| 57 |
-
VISION_SPEECH = 3
|
| 58 |
-
|
| 59 |
-
|
| 60 |
-
class Phi4MMImageProcessor(BaseImageProcessor):
|
| 61 |
-
r"""
|
| 62 |
-
Constructs a Phi4MM image processor.
|
| 63 |
-
"""
|
| 64 |
-
model_input_names = ["input_image_embeds", "image_sizes", "image_attention_mask"]
|
| 65 |
-
|
| 66 |
-
def __init__(
|
| 67 |
-
self,
|
| 68 |
-
dynamic_hd,
|
| 69 |
-
**kwargs,
|
| 70 |
-
) -> None:
|
| 71 |
-
super().__init__(**kwargs)
|
| 72 |
-
self.dynamic_hd = dynamic_hd
|
| 73 |
-
|
| 74 |
-
def find_closest_aspect_ratio(self, aspect_ratio, target_ratios, width, height, image_size):
|
| 75 |
-
best_ratio_diff = float('inf')
|
| 76 |
-
best_ratio = (1, 1)
|
| 77 |
-
area = width * height
|
| 78 |
-
for ratio in target_ratios:
|
| 79 |
-
target_aspect_ratio = ratio[0] / ratio[1]
|
| 80 |
-
ratio_diff = abs(aspect_ratio - target_aspect_ratio)
|
| 81 |
-
if ratio_diff < best_ratio_diff:
|
| 82 |
-
best_ratio_diff = ratio_diff
|
| 83 |
-
best_ratio = ratio
|
| 84 |
-
elif ratio_diff == best_ratio_diff:
|
| 85 |
-
if area > 0.5 * image_size * image_size * ratio[0] * ratio[1]:
|
| 86 |
-
best_ratio = ratio
|
| 87 |
-
return best_ratio
|
| 88 |
-
|
| 89 |
-
def dynamic_preprocess(self, image, min_num=1, max_num=12, image_size=384, mask_size=27, use_thumbnail=True):
|
| 90 |
-
orig_width, orig_height = image.size
|
| 91 |
-
|
| 92 |
-
w_crop_num = math.ceil(orig_width/float(image_size))
|
| 93 |
-
h_crop_num = math.ceil(orig_height/float(image_size))
|
| 94 |
-
if w_crop_num * h_crop_num > max_num:
|
| 95 |
-
|
| 96 |
-
aspect_ratio = orig_width / orig_height
|
| 97 |
-
|
| 98 |
-
# calculate the existing image aspect ratio
|
| 99 |
-
target_ratios = set(
|
| 100 |
-
(i, j) for n in range(min_num, max_num + 1) for i in range(1, n + 1) for j in range(1, n + 1) if
|
| 101 |
-
i * j <= max_num and i * j >= min_num)
|
| 102 |
-
target_ratios = sorted(target_ratios, key=lambda x: x[0] * x[1])
|
| 103 |
-
|
| 104 |
-
# find the closest aspect ratio to the target
|
| 105 |
-
target_aspect_ratio = self.find_closest_aspect_ratio(
|
| 106 |
-
aspect_ratio, target_ratios, orig_width, orig_height, image_size)
|
| 107 |
-
|
| 108 |
-
# calculate the target width and height
|
| 109 |
-
target_width = image_size * target_aspect_ratio[0]
|
| 110 |
-
target_height = image_size * target_aspect_ratio[1]
|
| 111 |
-
else:
|
| 112 |
-
target_width = image_size * w_crop_num
|
| 113 |
-
target_height = image_size * h_crop_num
|
| 114 |
-
target_aspect_ratio = (w_crop_num, h_crop_num)
|
| 115 |
-
|
| 116 |
-
# Calculate the ratio
|
| 117 |
-
ratio_width = target_width / orig_width
|
| 118 |
-
ratio_height = target_height / orig_height
|
| 119 |
-
if ratio_width < ratio_height:
|
| 120 |
-
new_size = (target_width, int(orig_height * ratio_width))
|
| 121 |
-
padding_width = 0
|
| 122 |
-
padding_height = target_height - int(orig_height * ratio_width)
|
| 123 |
-
else:
|
| 124 |
-
new_size = (int(orig_width * ratio_height), target_height)
|
| 125 |
-
padding_width = target_width - int(orig_width * ratio_height)
|
| 126 |
-
padding_height = 0
|
| 127 |
-
|
| 128 |
-
attention_mask = torch.ones((int(mask_size*target_aspect_ratio[1]), int(mask_size*target_aspect_ratio[0])))
|
| 129 |
-
if padding_width >= 14:
|
| 130 |
-
attention_mask[:, -math.floor(padding_width/14):] = 0
|
| 131 |
-
if padding_height >= 14:
|
| 132 |
-
attention_mask[-math.floor(padding_height/14):,:] = 0
|
| 133 |
-
assert attention_mask.sum() > 0
|
| 134 |
-
|
| 135 |
-
if min(new_size[1], target_height) < 10 or min(new_size[0], target_width) < 10:
|
| 136 |
-
raise ValueError(f'the aspect ratio is very extreme {new_size}')
|
| 137 |
-
|
| 138 |
-
image = torchvision.transforms.functional.resize(image, [new_size[1], new_size[0]],)
|
| 139 |
-
|
| 140 |
-
resized_img = torchvision.transforms.functional.pad(image, [0, 0, padding_width, padding_height], fill=[255,255,255])
|
| 141 |
-
|
| 142 |
-
return resized_img, attention_mask
|
| 143 |
-
|
| 144 |
-
def pad_to_max_num_crops(self, images, max_crops=5):
|
| 145 |
-
"""
|
| 146 |
-
images: B x 3 x H x W, B<=max_crops
|
| 147 |
-
"""
|
| 148 |
-
B, _, H, W = images.shape
|
| 149 |
-
if B < max_crops:
|
| 150 |
-
pad = torch.zeros(max_crops - B, 3, H, W, dtype=images.dtype, device=images.device)
|
| 151 |
-
images = torch.cat([images, pad], dim=0)
|
| 152 |
-
return images
|
| 153 |
-
|
| 154 |
-
def pad_mask_to_max_num_crops(self, masks, max_crops=5):
|
| 155 |
-
B, H, W = masks.shape
|
| 156 |
-
if B < max_crops:
|
| 157 |
-
pad = torch.ones(max_crops - B, H, W, dtype=masks.dtype, device=masks.device)
|
| 158 |
-
masks = torch.cat([masks, pad], dim=0)
|
| 159 |
-
return masks
|
| 160 |
-
|
| 161 |
-
def preprocess(
|
| 162 |
-
self,
|
| 163 |
-
images: ImageInput,
|
| 164 |
-
return_tensors: Optional[Union[str, TensorType]] = None,
|
| 165 |
-
):
|
| 166 |
-
"""
|
| 167 |
-
Args:
|
| 168 |
-
images (`ImageInput`):
|
| 169 |
-
Image to preprocess. Expects a single or batch of images with pixel values ranging from 0 to 255. If
|
| 170 |
-
passing in images with pixel values between 0 and 1, set `do_rescale=False`.
|
| 171 |
-
return_tensors (`str` or `TensorType`, *optional*):
|
| 172 |
-
The type of tensors to return. Can be one of:
|
| 173 |
-
- Unset: Return a list of `np.ndarray`.
|
| 174 |
-
- `TensorType.TENSORFLOW` or `'tf'`: Return a batch of type `tf.Tensor`.
|
| 175 |
-
- `TensorType.PYTORCH` or `'pt'`: Return a batch of type `torch.Tensor`.
|
| 176 |
-
- `TensorType.NUMPY` or `'np'`: Return a batch of type `np.ndarray`.
|
| 177 |
-
- `TensorType.JAX` or `'jax'`: Return a batch of type `jax.numpy.ndarray`.
|
| 178 |
-
"""
|
| 179 |
-
images = make_list_of_images(images)
|
| 180 |
-
|
| 181 |
-
if not valid_images(images):
|
| 182 |
-
raise ValueError(
|
| 183 |
-
"Invalid image type. Must be of type PIL.Image.Image, numpy.ndarray, "
|
| 184 |
-
"torch.Tensor, tf.Tensor or jax.ndarray."
|
| 185 |
-
)
|
| 186 |
-
|
| 187 |
-
# Basic settings.
|
| 188 |
-
img_processor = torchvision.transforms.Compose([
|
| 189 |
-
torchvision.transforms.ToTensor(),
|
| 190 |
-
torchvision.transforms.Normalize(
|
| 191 |
-
(0.5, 0.5, 0.5),
|
| 192 |
-
(0.5, 0.5, 0.5)
|
| 193 |
-
),
|
| 194 |
-
])
|
| 195 |
-
dyhd_base_resolution = 448
|
| 196 |
-
|
| 197 |
-
# Dynamic HD
|
| 198 |
-
base_resolution = dyhd_base_resolution
|
| 199 |
-
images = [image.convert('RGB') for image in images]
|
| 200 |
-
# cover 384 and 448 resolution
|
| 201 |
-
mask_resolution = base_resolution // 14
|
| 202 |
-
elems, image_attention_masks = [], []
|
| 203 |
-
for im in images:
|
| 204 |
-
elem, attention_mask = self.dynamic_preprocess(im, max_num=self.dynamic_hd, image_size=base_resolution, mask_size=mask_resolution)
|
| 205 |
-
elems.append(elem)
|
| 206 |
-
image_attention_masks.append(attention_mask)
|
| 207 |
-
hd_images = [img_processor(im) for im in elems]
|
| 208 |
-
global_image = [torch.nn.functional.interpolate(im.unsqueeze(0).float(), size=(base_resolution, base_resolution), mode='bicubic',).to(im.dtype) for im in hd_images]
|
| 209 |
-
shapes = [[im.size(1), im.size(2)] for im in hd_images]
|
| 210 |
-
mask_shapes = [[mask.size(0), mask.size(1)] for mask in image_attention_masks]
|
| 211 |
-
global_attention_mask = [torch.ones((1, mask_resolution, mask_resolution)) for _ in hd_images]
|
| 212 |
-
hd_images_reshape = [im.reshape(1, 3,
|
| 213 |
-
h//base_resolution,
|
| 214 |
-
base_resolution,
|
| 215 |
-
w//base_resolution,
|
| 216 |
-
base_resolution
|
| 217 |
-
).permute(0,2,4,1,3,5).reshape(-1, 3, base_resolution, base_resolution).contiguous() for im, (h, w) in zip(hd_images, shapes)]
|
| 218 |
-
attention_masks_reshape = [mask.reshape(1,
|
| 219 |
-
h//mask_resolution,
|
| 220 |
-
mask_resolution,
|
| 221 |
-
w//mask_resolution,
|
| 222 |
-
mask_resolution
|
| 223 |
-
).permute(0,1,3,2,4).reshape(-1, mask_resolution, mask_resolution).contiguous() for mask, (h, w) in zip(image_attention_masks, mask_shapes)]
|
| 224 |
-
downsample_attention_masks = [mask[:,0::2,0::2].reshape(1,
|
| 225 |
-
h//mask_resolution,
|
| 226 |
-
w//mask_resolution,
|
| 227 |
-
mask_resolution//2+mask_resolution%2,
|
| 228 |
-
mask_resolution//2+mask_resolution%2
|
| 229 |
-
).permute(0,1,3,2,4) for mask, (h,w) in zip(attention_masks_reshape, mask_shapes)]
|
| 230 |
-
downsample_attention_masks = [mask.reshape(mask.size(1)*mask.size(2), mask.size(3)*mask.size(4))for mask in downsample_attention_masks]
|
| 231 |
-
num_img_tokens = [256 + 1 + int(mask.sum().item()) + int(mask[:,0].sum().item()) + 16 for mask in downsample_attention_masks]
|
| 232 |
-
|
| 233 |
-
hd_images_reshape = [torch.cat([_global_image] + [_im], dim=0) for _global_image, _im in zip(global_image, hd_images_reshape)]
|
| 234 |
-
hd_masks_reshape = [torch.cat([_global_mask] + [_mask], dim=0) for _global_mask, _mask in zip(global_attention_mask, attention_masks_reshape)]
|
| 235 |
-
max_crops = max([img.size(0) for img in hd_images_reshape])
|
| 236 |
-
image_transformed = [self.pad_to_max_num_crops(im, max_crops) for im in hd_images_reshape]
|
| 237 |
-
image_transformed = torch.stack(image_transformed, dim=0)
|
| 238 |
-
mask_transformed = [self.pad_mask_to_max_num_crops(mask, max_crops) for mask in hd_masks_reshape]
|
| 239 |
-
mask_transformed = torch.stack(mask_transformed, dim=0)
|
| 240 |
-
|
| 241 |
-
returned_input_image_embeds = image_transformed
|
| 242 |
-
returned_image_sizes = torch.tensor(shapes, dtype=torch.long)
|
| 243 |
-
returned_image_attention_mask = mask_transformed
|
| 244 |
-
returned_num_img_tokens = num_img_tokens
|
| 245 |
-
|
| 246 |
-
data = {
|
| 247 |
-
"input_image_embeds": returned_input_image_embeds,
|
| 248 |
-
"image_sizes": returned_image_sizes,
|
| 249 |
-
"image_attention_mask": returned_image_attention_mask,
|
| 250 |
-
"num_img_tokens": returned_num_img_tokens,
|
| 251 |
-
}
|
| 252 |
-
|
| 253 |
-
return BatchFeature(data=data, tensor_type=return_tensors)
|
| 254 |
-
|
| 255 |
-
|
| 256 |
-
AudioInput = Tuple[Union[np.ndarray, torch.Tensor], int]
|
| 257 |
-
AudioInputs = List[AudioInput]
|
| 258 |
-
|
| 259 |
-
|
| 260 |
-
def speechlib_mel(sample_rate, n_fft, n_mels, fmin=None, fmax=None):
|
| 261 |
-
"""Create a Mel filter-bank the same as SpeechLib FbankFC.
|
| 262 |
-
|
| 263 |
-
Args:
|
| 264 |
-
sample_rate (int): Sample rate in Hz. number > 0 [scalar]
|
| 265 |
-
n_fft (int): FFT size. int > 0 [scalar]
|
| 266 |
-
n_mel (int): Mel filter size. int > 0 [scalar]
|
| 267 |
-
fmin (float): lowest frequency (in Hz). If None use 0.0.
|
| 268 |
-
float >= 0 [scalar]
|
| 269 |
-
fmax: highest frequency (in Hz). If None use sample_rate / 2.
|
| 270 |
-
float >= 0 [scalar]
|
| 271 |
-
|
| 272 |
-
Returns
|
| 273 |
-
out (numpy.ndarray): Mel transform matrix
|
| 274 |
-
[shape=(n_mels, 1 + n_fft/2)]
|
| 275 |
-
"""
|
| 276 |
-
|
| 277 |
-
bank_width = int(n_fft // 2 + 1)
|
| 278 |
-
if fmax is None:
|
| 279 |
-
fmax = sample_rate / 2
|
| 280 |
-
if fmin is None:
|
| 281 |
-
fmin = 0
|
| 282 |
-
assert fmin >= 0, "fmin cannot be negtive"
|
| 283 |
-
assert fmin < fmax <= sample_rate / 2, "fmax must be between (fmin, samplerate / 2]"
|
| 284 |
-
|
| 285 |
-
def mel(f):
|
| 286 |
-
return 1127.0 * np.log(1.0 + f / 700.0)
|
| 287 |
-
|
| 288 |
-
def bin2mel(fft_bin):
|
| 289 |
-
return 1127.0 * np.log(1.0 + fft_bin * sample_rate / (n_fft * 700.0))
|
| 290 |
-
|
| 291 |
-
def f2bin(f):
|
| 292 |
-
return int((f * n_fft / sample_rate) + 0.5)
|
| 293 |
-
|
| 294 |
-
# Spec 1: FFT bin range [f2bin(fmin) + 1, f2bin(fmax) - 1]
|
| 295 |
-
klo = f2bin(fmin) + 1
|
| 296 |
-
khi = f2bin(fmax)
|
| 297 |
-
|
| 298 |
-
khi = max(khi, klo)
|
| 299 |
-
|
| 300 |
-
# Spec 2: SpeechLib uses trianges in Mel space
|
| 301 |
-
mlo = mel(fmin)
|
| 302 |
-
mhi = mel(fmax)
|
| 303 |
-
m_centers = np.linspace(mlo, mhi, n_mels + 2)
|
| 304 |
-
ms = (mhi - mlo) / (n_mels + 1)
|
| 305 |
-
|
| 306 |
-
matrix = np.zeros((n_mels, bank_width), dtype=np.float32)
|
| 307 |
-
for m in range(0, n_mels):
|
| 308 |
-
left = m_centers[m]
|
| 309 |
-
center = m_centers[m + 1]
|
| 310 |
-
right = m_centers[m + 2]
|
| 311 |
-
for fft_bin in range(klo, khi):
|
| 312 |
-
mbin = bin2mel(fft_bin)
|
| 313 |
-
if left < mbin < right:
|
| 314 |
-
matrix[m, fft_bin] = 1.0 - abs(center - mbin) / ms
|
| 315 |
-
|
| 316 |
-
return matrix
|
| 317 |
-
|
| 318 |
-
|
| 319 |
-
class Phi4MMAudioFeatureExtractor(SequenceFeatureExtractor):
|
| 320 |
-
model_input_names = ["input_audio_embeds", "audio_embed_sizes", "audio_attention_mask"]
|
| 321 |
-
|
| 322 |
-
def __init__(self, audio_compression_rate, audio_downsample_rate, audio_feat_stride, **kwargs):
|
| 323 |
-
feature_size = 80
|
| 324 |
-
sampling_rate = 16000
|
| 325 |
-
padding_value = 0.0
|
| 326 |
-
super().__init__(feature_size, sampling_rate, padding_value, **kwargs)
|
| 327 |
-
|
| 328 |
-
self.compression_rate = audio_compression_rate
|
| 329 |
-
self.qformer_compression_rate = audio_downsample_rate
|
| 330 |
-
self.feat_stride = audio_feat_stride
|
| 331 |
-
|
| 332 |
-
self._eightk_method = "fillzero"
|
| 333 |
-
self._mel = speechlib_mel(16000, 512, 80, fmin=None, fmax=7690).T
|
| 334 |
-
|
| 335 |
-
self._hamming400 = np.hamming(400) # for 16k audio
|
| 336 |
-
self._hamming200 = np.hamming(200) # for 8k audio
|
| 337 |
-
|
| 338 |
-
def duration_to_frames(self, duration):
|
| 339 |
-
"""duration in s, estimated frames"""
|
| 340 |
-
frame_rate = 10
|
| 341 |
-
|
| 342 |
-
num_frames = duration * 1000 // frame_rate
|
| 343 |
-
return num_frames
|
| 344 |
-
|
| 345 |
-
def __call__(
|
| 346 |
-
self,
|
| 347 |
-
audios: List[AudioInput],
|
| 348 |
-
return_tensors: Optional[Union[str, TensorType]] = None,
|
| 349 |
-
):
|
| 350 |
-
# Ref: https://github.com/huggingface/transformers/blob/v4.47.0/src/transformers/models/audio_spectrogram_transformer/feature_extraction_audio_spectrogram_transformer.py#L161
|
| 351 |
-
returned_input_audio_embeds = []
|
| 352 |
-
returned_audio_embed_sizes = []
|
| 353 |
-
audio_frames_list = []
|
| 354 |
-
|
| 355 |
-
for audio_data, sample_rate in audios:
|
| 356 |
-
audio_embeds = self._extract_features(audio_data, sample_rate)
|
| 357 |
-
audio_frames = len(audio_embeds) * self.feat_stride
|
| 358 |
-
audio_embed_size = self._compute_audio_embed_size(audio_frames)
|
| 359 |
-
|
| 360 |
-
returned_input_audio_embeds.append(torch.tensor(audio_embeds))
|
| 361 |
-
returned_audio_embed_sizes.append(torch.tensor(audio_embed_size).long())
|
| 362 |
-
audio_frames_list.append(audio_frames)
|
| 363 |
-
|
| 364 |
-
returned_input_audio_embeds = pad_sequence(
|
| 365 |
-
returned_input_audio_embeds, batch_first=True
|
| 366 |
-
)
|
| 367 |
-
returned_audio_embed_sizes = torch.stack(returned_audio_embed_sizes, dim=0)
|
| 368 |
-
audio_frames = torch.tensor(audio_frames_list)
|
| 369 |
-
returned_audio_attention_mask = torch.arange(0, audio_frames.max()).unsqueeze(0) < audio_frames.unsqueeze(1) if len(audios) > 1 else None
|
| 370 |
-
|
| 371 |
-
data = {
|
| 372 |
-
"input_audio_embeds": returned_input_audio_embeds,
|
| 373 |
-
"audio_embed_sizes": returned_audio_embed_sizes,
|
| 374 |
-
}
|
| 375 |
-
if returned_audio_attention_mask is not None:
|
| 376 |
-
data["audio_attention_mask"] = returned_audio_attention_mask
|
| 377 |
-
|
| 378 |
-
return BatchFeature(data=data, tensor_type=return_tensors)
|
| 379 |
-
|
| 380 |
-
def _extract_spectrogram(self, wav, fs):
|
| 381 |
-
"""Extract spectrogram features from waveform.
|
| 382 |
-
Args:
|
| 383 |
-
wav (1D array): waveform of the input
|
| 384 |
-
fs (int): sampling rate of the waveform, 16000 or 8000.
|
| 385 |
-
If fs=8000, the waveform will be resampled to 16000Hz.
|
| 386 |
-
Output:
|
| 387 |
-
log_fbank (2D array): a TxD matrix of log Mel filterbank features.
|
| 388 |
-
D=80, and T is the number of frames.
|
| 389 |
-
"""
|
| 390 |
-
if wav.ndim > 1:
|
| 391 |
-
wav = np.squeeze(wav)
|
| 392 |
-
|
| 393 |
-
# by default, we extract the mean if stereo
|
| 394 |
-
if len(wav.shape) == 2:
|
| 395 |
-
wav = wav.mean(1)
|
| 396 |
-
|
| 397 |
-
# Resample to 16000 or 8000 if needed
|
| 398 |
-
if fs > 16000:
|
| 399 |
-
wav = scipy.signal.resample_poly(wav, 1, fs // 16000)
|
| 400 |
-
fs = 16000
|
| 401 |
-
elif 8000 < fs < 16000:
|
| 402 |
-
wav = scipy.signal.resample_poly(wav, 1, fs // 8000)
|
| 403 |
-
fs = 8000
|
| 404 |
-
elif fs < 8000:
|
| 405 |
-
raise RuntimeError(f"Unsupported sample rate {fs}")
|
| 406 |
-
|
| 407 |
-
if fs == 8000:
|
| 408 |
-
if self._eightk_method == "resample":
|
| 409 |
-
# Input audio is 8 kHz. Convert to 16 kHz before feature
|
| 410 |
-
# extraction
|
| 411 |
-
wav = scipy.signal.resample_poly(wav, 2, 1)
|
| 412 |
-
fs = 16000
|
| 413 |
-
# Do nothing here for fillzero method
|
| 414 |
-
elif fs != 16000:
|
| 415 |
-
# Input audio is not a supported sample rate.
|
| 416 |
-
raise RuntimeError(f"Input data using an unsupported sample rate: {fs}")
|
| 417 |
-
|
| 418 |
-
preemphasis = 0.97
|
| 419 |
-
|
| 420 |
-
if fs == 8000:
|
| 421 |
-
n_fft = 256
|
| 422 |
-
win_length = 200
|
| 423 |
-
hop_length = 80
|
| 424 |
-
fft_window = self._hamming200
|
| 425 |
-
elif fs == 16000:
|
| 426 |
-
n_fft = 512
|
| 427 |
-
win_length = 400
|
| 428 |
-
hop_length = 160
|
| 429 |
-
fft_window = self._hamming400
|
| 430 |
-
|
| 431 |
-
# Spec 1: SpeechLib cut remaining sample insufficient for a hop
|
| 432 |
-
n_batch = (wav.shape[0] - win_length) // hop_length + 1
|
| 433 |
-
# Here we don't use stride_tricks since the input array may not satisfy
|
| 434 |
-
# memory layout requirement and we need writeable output
|
| 435 |
-
# Here we only use list of views before copy to desination
|
| 436 |
-
# so it is more efficient than broadcasting
|
| 437 |
-
y_frames = np.array(
|
| 438 |
-
[wav[_stride : _stride + win_length] for _stride in range(0, hop_length * n_batch, hop_length)],
|
| 439 |
-
dtype=np.float32,
|
| 440 |
-
)
|
| 441 |
-
|
| 442 |
-
# Spec 2: SpeechLib applies preemphasis within each batch
|
| 443 |
-
y_frames_prev = np.roll(y_frames, 1, axis=1)
|
| 444 |
-
y_frames_prev[:, 0] = y_frames_prev[:, 1]
|
| 445 |
-
y_frames = (y_frames - preemphasis * y_frames_prev) * 32768
|
| 446 |
-
|
| 447 |
-
S = np.fft.rfft(fft_window * y_frames, n=n_fft, axis=1).astype(np.complex64)
|
| 448 |
-
|
| 449 |
-
if fs == 8000:
|
| 450 |
-
# Need to pad the output to look like 16 kHz data but with zeros in
|
| 451 |
-
# the 4 to 8 kHz bins.
|
| 452 |
-
frames, bins = S.shape
|
| 453 |
-
padarray = np.zeros((frames, bins))
|
| 454 |
-
S = np.concatenate((S[:, 0:-1], padarray), axis=1) # Nyquist bin gets set to zero
|
| 455 |
-
|
| 456 |
-
spec = np.abs(S).astype(np.float32)
|
| 457 |
-
return spec
|
| 458 |
-
|
| 459 |
-
def _extract_features(self, wav, fs):
|
| 460 |
-
"""Extract log filterbank features from waveform.
|
| 461 |
-
Args:
|
| 462 |
-
wav (1D array): waveform of the input
|
| 463 |
-
fs (int): sampling rate of the waveform, 16000 or 8000.
|
| 464 |
-
If fs=8000, the waveform will be resampled to 16000Hz.
|
| 465 |
-
Output:
|
| 466 |
-
log_fbank (2D array): a TxD matrix of log Mel filterbank features.
|
| 467 |
-
D=80, and T is the number of frames.
|
| 468 |
-
"""
|
| 469 |
-
spec = self._extract_spectrogram(wav, fs)
|
| 470 |
-
spec_power = spec**2
|
| 471 |
-
|
| 472 |
-
fbank_power = np.clip(spec_power.dot(self._mel), 1.0, None)
|
| 473 |
-
log_fbank = np.log(fbank_power).astype(np.float32)
|
| 474 |
-
|
| 475 |
-
return log_fbank
|
| 476 |
-
|
| 477 |
-
def _compute_audio_embed_size(self, audio_frames):
|
| 478 |
-
integer = audio_frames // self.compression_rate
|
| 479 |
-
remainder = audio_frames % self.compression_rate
|
| 480 |
-
|
| 481 |
-
result = integer if remainder == 0 else integer + 1
|
| 482 |
-
|
| 483 |
-
integer = result // self.qformer_compression_rate
|
| 484 |
-
remainder = result % self.qformer_compression_rate
|
| 485 |
-
result = integer if remainder == 0 else integer + 1 # qformer compression
|
| 486 |
-
|
| 487 |
-
return result
|
| 488 |
-
|
| 489 |
-
|
| 490 |
-
class Phi4MMProcessor(ProcessorMixin):
|
| 491 |
-
r"""
|
| 492 |
-
Constructs a Phi4MM processor which raps an image processor, a audio processor, and a GPT tokenizer into a single processor.
|
| 493 |
-
|
| 494 |
-
[`Phi4MMProcessor`] offers all the functionalities of [`Phi4MMImageProcessor`] and [`GPT2Tokenizer`]. See the
|
| 495 |
-
[`~Phi4MMProcessor.__call__`] and [`~Phi4MMProcessor.decode`] for more information.
|
| 496 |
-
|
| 497 |
-
Args:
|
| 498 |
-
image_processor ([`Phi4MMImageProcessor`], *optional*):
|
| 499 |
-
The image processor is a required input.
|
| 500 |
-
tokenizer ([`GPT2Tokenizer`], *optional*):
|
| 501 |
-
The tokenizer is a required input.
|
| 502 |
-
"""
|
| 503 |
-
|
| 504 |
-
attributes = ["image_processor", "audio_processor", "tokenizer"]
|
| 505 |
-
tokenizer_class = "GPT2TokenizerFast"
|
| 506 |
-
image_processor_class = "AutoImageProcessor" # Phi4MMImageProcessor will be registered later
|
| 507 |
-
audio_processor_class = "AutoFeatureExtractor" # Phi4MMAudioFeatureExtractor will be registered later
|
| 508 |
-
|
| 509 |
-
def __init__(self, image_processor, audio_processor, tokenizer):
|
| 510 |
-
self.image_processor = image_processor
|
| 511 |
-
self.audio_processor = audio_processor
|
| 512 |
-
self.tokenizer = tokenizer
|
| 513 |
-
|
| 514 |
-
def __call__(
|
| 515 |
-
self,
|
| 516 |
-
text: Union[TextInput, List[TextInput]],
|
| 517 |
-
images: Optional[ImageInput] = None,
|
| 518 |
-
audios: Optional[AudioInputs] = None,
|
| 519 |
-
padding: Union[bool, str, PaddingStrategy] = False,
|
| 520 |
-
truncation: Optional[Union[bool, str, TruncationStrategy]] = None,
|
| 521 |
-
max_length=None,
|
| 522 |
-
return_tensors: Optional[Union[str, TensorType]] = TensorType.PYTORCH,
|
| 523 |
-
) -> BatchFeature:
|
| 524 |
-
"""
|
| 525 |
-
Main method to prepare for the model one or several sequences(s) and image(s). This method forards the `text`
|
| 526 |
-
and `kwargs` arguments to GPT2Tokenizer's [`~GPT2Tokenizer.__call__`] if `text` is not `None` to encode
|
| 527 |
-
the text. To prepare the image(s), this method forwards the `images` and `kwrags` arguments to
|
| 528 |
-
Phi4MMImageProcessor's [`~Phi4MMImageProcessor.__call__`] if `images` is not `None`. Please refer to the doctsring
|
| 529 |
-
of the above two methods for more information.
|
| 530 |
-
|
| 531 |
-
Args:
|
| 532 |
-
text (`str`, `List[str]`, `List[List[str]]`):
|
| 533 |
-
The sequence or batch of sequences to be encoded. Each sequence can be a string or a list of strings
|
| 534 |
-
(pretokenized string). If the sequences are provided as list of strings (pretokenized), you must set
|
| 535 |
-
`is_split_into_words=True` (to lift the ambiguity with a batch of sequences).
|
| 536 |
-
images (`PIL.Image.Image`, `np.ndarray`, `torch.Tensor`, `List[PIL.Image.Image]`, `List[np.ndarray]`, `List[torch.Tensor]`):
|
| 537 |
-
The image or batch of images to be prepared. Each image can be a PIL image, NumPy array or PyTorch
|
| 538 |
-
tensor. Both channels-first and channels-last formats are supported.
|
| 539 |
-
padding (`bool`, `str` or [`~utils.PaddingStrategy`], *optional*, defaults to `False`):
|
| 540 |
-
Select a strategy to pad the returned sequences (according to the model's padding side and padding
|
| 541 |
-
index) among:
|
| 542 |
-
- `True` or `'longest'`: Pad to the longest sequence in the batch (or no padding if only a single
|
| 543 |
-
sequence if provided).
|
| 544 |
-
- `'max_length'`: Pad to a maximum length specified with the argument `max_length` or to the maximum
|
| 545 |
-
acceptable input length for the model if that argument is not provided.
|
| 546 |
-
- `False` or `'do_not_pad'` (default): No padding (i.e., can output a batch with sequences of different
|
| 547 |
-
lengths).
|
| 548 |
-
max_length (`int`, *optional*):
|
| 549 |
-
Maximum length of the returned list and optionally padding length (see above).
|
| 550 |
-
truncation (`bool`, *optional*):
|
| 551 |
-
Activates truncation to cut input sequences longer than `max_length` to `max_length`.
|
| 552 |
-
return_tensors (`str` or [`~utils.TensorType`], *optional*):
|
| 553 |
-
If set, will return tensors of a particular framework. Acceptable values are:
|
| 554 |
-
|
| 555 |
-
- `'tf'`: Return TensorFlow `tf.constant` objects.
|
| 556 |
-
- `'pt'`: Return PyTorch `torch.Tensor` objects.
|
| 557 |
-
- `'np'`: Return NumPy `np.ndarray` objects.
|
| 558 |
-
- `'jax'`: Return JAX `jnp.ndarray` objects.
|
| 559 |
-
|
| 560 |
-
Returns:
|
| 561 |
-
[`BatchFeature`]: A [`BatchFeature`] with the following fields:
|
| 562 |
-
|
| 563 |
-
- **input_ids** -- List of token ids to be fed to a model.
|
| 564 |
-
- **input_image_embeds** -- Pixel values to be fed to a model.
|
| 565 |
-
- **image_sizes** -- List of tuples specifying the size of each image in `input_image_embeds`.
|
| 566 |
-
- **image_attention_mask** -- List of attention masks for each image in `input_image_embeds`.
|
| 567 |
-
- **input_audio_embeds** -- Audio embeddings to be fed to a model.
|
| 568 |
-
- **audio_embed_sizes** -- List of integers specifying the size of each audio in `input_audio_embeds`.
|
| 569 |
-
- **attention_mask** -- List of indices specifying which tokens should be attended to by the model.
|
| 570 |
-
"""
|
| 571 |
-
image_inputs = self.image_processor(images, return_tensors=return_tensors) if images is not None else {}
|
| 572 |
-
audio_inputs = self.audio_processor(audios, return_tensors=return_tensors) if audios is not None else {}
|
| 573 |
-
inputs = self._convert_images_audios_text_to_inputs(
|
| 574 |
-
image_inputs,
|
| 575 |
-
audio_inputs,
|
| 576 |
-
text,
|
| 577 |
-
padding=padding,
|
| 578 |
-
truncation=truncation,
|
| 579 |
-
max_length=max_length,
|
| 580 |
-
return_tensors=return_tensors,
|
| 581 |
-
)
|
| 582 |
-
|
| 583 |
-
# idenfity the input mode
|
| 584 |
-
if len(image_inputs) > 0 and len(audio_inputs) > 0:
|
| 585 |
-
input_mode = InputMode.VISION_SPEECH
|
| 586 |
-
elif len(image_inputs) > 0:
|
| 587 |
-
input_mode = InputMode.VISION
|
| 588 |
-
elif len(audio_inputs) > 0:
|
| 589 |
-
input_mode = InputMode.SPEECH
|
| 590 |
-
else:
|
| 591 |
-
input_mode = InputMode.LANGUAGE
|
| 592 |
-
inputs["input_mode"] = torch.tensor([input_mode.value], dtype=torch.long)
|
| 593 |
-
|
| 594 |
-
return inputs
|
| 595 |
-
|
| 596 |
-
@property
|
| 597 |
-
def special_image_token_id(self):
|
| 598 |
-
return self.tokenizer.convert_tokens_to_ids(self.special_image_token)
|
| 599 |
-
|
| 600 |
-
def get_special_image_token_id(self):
|
| 601 |
-
return self.tokenizer.convert_tokens_to_ids(self.special_image_token)
|
| 602 |
-
|
| 603 |
-
@property
|
| 604 |
-
def chat_template(self):
|
| 605 |
-
return self.tokenizer.chat_template
|
| 606 |
-
|
| 607 |
-
def _convert_images_audios_text_to_inputs(
|
| 608 |
-
self, images, audios, text, padding=False, truncation=None, max_length=None, return_tensors=None
|
| 609 |
-
):
|
| 610 |
-
# prepare image id to image input ids
|
| 611 |
-
if len(images) > 0:
|
| 612 |
-
input_image_embeds = images["input_image_embeds"]
|
| 613 |
-
image_sizes = images["image_sizes"]
|
| 614 |
-
image_attention_mask = images["image_attention_mask"]
|
| 615 |
-
num_img_tokens = images['num_img_tokens']
|
| 616 |
-
else:
|
| 617 |
-
input_image_embeds = torch.tensor([])
|
| 618 |
-
image_sizes = torch.tensor([])
|
| 619 |
-
image_attention_mask = torch.tensor([])
|
| 620 |
-
num_img_tokens = []
|
| 621 |
-
|
| 622 |
-
# prepare audio id to audio input ids
|
| 623 |
-
if len(audios) > 0:
|
| 624 |
-
input_audio_embeds = audios["input_audio_embeds"]
|
| 625 |
-
audio_embed_sizes = audios["audio_embed_sizes"]
|
| 626 |
-
audio_attention_mask = audios.get("audio_attention_mask", None)
|
| 627 |
-
else:
|
| 628 |
-
input_audio_embeds = torch.tensor([])
|
| 629 |
-
audio_embed_sizes = torch.tensor([])
|
| 630 |
-
audio_attention_mask = None
|
| 631 |
-
|
| 632 |
-
# Replace certain special tokens for compatibility
|
| 633 |
-
# Ref: https://stackoverflow.com/questions/11475885/python-replace-regex
|
| 634 |
-
if isinstance(text, str):
|
| 635 |
-
text = [text]
|
| 636 |
-
assert isinstance(text, list)
|
| 637 |
-
processed_text = [re.sub(_COMPATIBLE_IMAGE_SPECIAL_TOKEN_PATTERN, _IMAGE_SPECIAL_TOKEN, t) for t in text]
|
| 638 |
-
processed_text = [re.sub(_COMPATIBLE_AUDIO_SPECIAL_TOKEN_PATTERN, _AUDIO_SPECIAL_TOKEN, t) for t in processed_text]
|
| 639 |
-
|
| 640 |
-
input_ids_list = [self.tokenizer(t).input_ids for t in processed_text]
|
| 641 |
-
|
| 642 |
-
img_cnt, audio_cnt = 0, 0 # only needed for later assertion
|
| 643 |
-
image_token_count_iter = iter(num_img_tokens)
|
| 644 |
-
audio_embed_size_iter = iter(audio_embed_sizes.tolist())
|
| 645 |
-
new_input_ids_list = []
|
| 646 |
-
for input_ids in input_ids_list:
|
| 647 |
-
i = 0
|
| 648 |
-
while i < len(input_ids):
|
| 649 |
-
token_id = input_ids[i]
|
| 650 |
-
if token_id == _AUDIO_SPECIAL_TOKEN_ID:
|
| 651 |
-
token_count = next(audio_embed_size_iter)
|
| 652 |
-
audio_cnt += 1
|
| 653 |
-
elif token_id == _IMAGE_SPECIAL_TOKEN_ID:
|
| 654 |
-
token_count = next(image_token_count_iter)
|
| 655 |
-
img_cnt += 1
|
| 656 |
-
else:
|
| 657 |
-
i += 1
|
| 658 |
-
continue
|
| 659 |
-
tokens = [token_id] * token_count
|
| 660 |
-
input_ids = input_ids[:i] + tokens + input_ids[i + 1:]
|
| 661 |
-
i += token_count
|
| 662 |
-
input_ids = torch.tensor(input_ids, dtype=torch.long)
|
| 663 |
-
new_input_ids_list.append(input_ids)
|
| 664 |
-
lengths = torch.tensor([len(input_ids) for input_ids in new_input_ids_list])
|
| 665 |
-
max_len = lengths.max()
|
| 666 |
-
input_ids = input_ids.new_full((len(new_input_ids_list), max_len), self.tokenizer.pad_token_id)
|
| 667 |
-
# batched inference requires left padding
|
| 668 |
-
for i in range(len(new_input_ids_list)):
|
| 669 |
-
input_ids[i, max_len - len(new_input_ids_list[i]):] = new_input_ids_list[i]
|
| 670 |
-
|
| 671 |
-
# If the below assertion fails, it might be that input pure-text
|
| 672 |
-
# messages contain image/audio special tokens literally
|
| 673 |
-
# (<|endoftext10|>, <|endoftext11|>).
|
| 674 |
-
assert (
|
| 675 |
-
img_cnt == len(num_img_tokens)
|
| 676 |
-
), (
|
| 677 |
-
f"Number of image tokens in prompt_token_ids ({img_cnt}) "
|
| 678 |
-
f"does not match number of images ({len(num_img_tokens)})"
|
| 679 |
-
)
|
| 680 |
-
assert (
|
| 681 |
-
audio_cnt == len(audio_embed_sizes)
|
| 682 |
-
), (
|
| 683 |
-
f"Number of audio tokens in prompt_token_ids ({audio_cnt}) "
|
| 684 |
-
f"does not match number of audios ({len(audio_embed_sizes)})"
|
| 685 |
-
)
|
| 686 |
-
|
| 687 |
-
# prepare attention mask
|
| 688 |
-
seq_range = torch.arange(max_len - 1, -1, -1)
|
| 689 |
-
attention_mask = seq_range.unsqueeze(0) < lengths.unsqueeze(1)
|
| 690 |
-
|
| 691 |
-
# prepare batch feature
|
| 692 |
-
data = {
|
| 693 |
-
"input_ids": input_ids,
|
| 694 |
-
"input_image_embeds": input_image_embeds,
|
| 695 |
-
"image_sizes": image_sizes,
|
| 696 |
-
"image_attention_mask": image_attention_mask,
|
| 697 |
-
"input_audio_embeds": input_audio_embeds,
|
| 698 |
-
"audio_embed_sizes": audio_embed_sizes,
|
| 699 |
-
"audio_attention_mask": audio_attention_mask,
|
| 700 |
-
"attention_mask": attention_mask,
|
| 701 |
-
}
|
| 702 |
-
|
| 703 |
-
return BatchFeature(
|
| 704 |
-
data=data
|
| 705 |
-
)
|
| 706 |
-
|
| 707 |
-
# Copied from transformers.models.clip.processing_clip.CLIPProcessor.batch_decode with CLIP->Llama
|
| 708 |
-
def batch_decode(self, *args, **kwargs):
|
| 709 |
-
"""
|
| 710 |
-
This method forwards all its arguments to GPT2Tokenizer's [`~PreTrainedTokenizer.batch_decode`]. Please
|
| 711 |
-
refer to the docstring of this method for more information.
|
| 712 |
-
"""
|
| 713 |
-
return self.tokenizer.batch_decode(*args, **kwargs)
|
| 714 |
-
|
| 715 |
-
# Copied from transformers.models.clip.processing_clip.CLIPProcessor.decode with CLIP->Llama
|
| 716 |
-
def decode(self, *args, **kwargs):
|
| 717 |
-
"""
|
| 718 |
-
This method forwards all its arguments to GPT2Tokenizer's [`~PreTrainedTokenizer.decode`]. Please refer to
|
| 719 |
-
the docstring of this method for more information.
|
| 720 |
-
"""
|
| 721 |
-
return self.tokenizer.decode(*args, **kwargs)
|
| 722 |
-
|
| 723 |
-
@property
|
| 724 |
-
# Copied from transformers.models.clip.processing_clip.CLIPProcessor.model_input_names
|
| 725 |
-
def model_input_names(self):
|
| 726 |
-
tokenizer_input_names = self.tokenizer.model_input_names
|
| 727 |
-
image_processor_input_names = self.image_processor.model_input_names
|
| 728 |
-
audio_processor_input_names = self.audio_processor.model_input_names
|
| 729 |
-
return list(dict.fromkeys(tokenizer_input_names + image_processor_input_names + audio_processor_input_names))
|
| 730 |
-
|
| 731 |
-
|
| 732 |
-
AutoImageProcessor.register("Phi4MMImageProcessor", Phi4MMImageProcessor)
|
| 733 |
-
AutoFeatureExtractor.register("Phi4MMAudioFeatureExtractor", Phi4MMAudioFeatureExtractor)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|