Add minimal vLLM 0.16.1 build repo for BI-V150
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187
vllm/multimodal/processing/dummy_inputs.py
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187
vllm/multimodal/processing/dummy_inputs.py
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# SPDX-License-Identifier: Apache-2.0
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# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
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from abc import ABC, abstractmethod
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from collections.abc import Mapping
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from typing import Generic, TypeVar
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import numpy as np
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import numpy.typing as npt
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from PIL import Image
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from vllm.config.multimodal import (
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AudioDummyOptions,
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BaseDummyOptions,
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ImageDummyOptions,
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VideoDummyOptions,
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)
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from vllm.logger import init_logger
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from ..inputs import MultiModalDataDict
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from .context import BaseProcessingInfo
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from .inputs import ProcessorInputs
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_I = TypeVar("_I", bound=BaseProcessingInfo)
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logger = init_logger(__name__)
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class BaseDummyInputsBuilder(ABC, Generic[_I]):
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"""
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Abstract base class that constructs the dummy data to profile
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multi-modal models.
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"""
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def __init__(self, info: _I) -> None:
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super().__init__()
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self.info = info
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@abstractmethod
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def get_dummy_text(self, mm_counts: Mapping[str, int]) -> str:
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"""
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Build the text input corresponding to `mm_counts`.
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"""
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raise NotImplementedError
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@abstractmethod
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def get_dummy_mm_data(
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self,
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seq_len: int,
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mm_counts: Mapping[str, int],
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mm_options: Mapping[str, BaseDummyOptions],
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) -> MultiModalDataDict:
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"""
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Build the multimodal input which, after processing, results in
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the maximum possible number of placeholder tokens.
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Args:
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seq_len: Sequence length
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mm_counts: Count of items per modality
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mm_options: Configurable options per modality (optional).
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If None, use model defaults for backward compatibility.
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If provided, models can use these to customize dummy
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data generation.
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"""
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raise NotImplementedError
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def get_dummy_processor_inputs(
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self,
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seq_len: int,
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mm_counts: Mapping[str, int],
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mm_options: Mapping[str, BaseDummyOptions],
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) -> ProcessorInputs:
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"""
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Build the input which, after processing, results in
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the maximum possible number of placeholder tokens.
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Args:
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seq_len: Sequence length
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mm_counts: Count of items per modality
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mm_options: Configurable options per modality (optional)
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"""
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dummy_text = self.get_dummy_text(mm_counts)
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dummy_mm_data = self.get_dummy_mm_data(seq_len, mm_counts, mm_options)
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dummy_mm_items = self.info.parse_mm_data(dummy_mm_data, validate=False)
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tokenization_kwargs = {"truncation": False}
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return ProcessorInputs(
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prompt=dummy_text,
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mm_data_items=dummy_mm_items,
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tokenization_kwargs=tokenization_kwargs,
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)
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def _get_dummy_audios(
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self,
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*,
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length: int,
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num_audios: int,
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overrides: AudioDummyOptions | None = None,
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) -> list[npt.NDArray]:
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if num_audios == 0:
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return []
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if overrides and overrides.length:
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if overrides.length > length:
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logger.warning(
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"audio.length override (%d) exceeds model's "
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"maximum length (%d), will be ignored",
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overrides.length,
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length,
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)
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length = min(length, overrides.length)
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audio = np.zeros((length,))
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return [audio] * num_audios
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def _get_dummy_images(
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self,
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*,
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width: int,
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height: int,
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num_images: int,
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overrides: ImageDummyOptions | None = None,
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) -> list[Image.Image]:
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if num_images == 0:
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return []
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if overrides:
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if overrides.width:
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if overrides.width > width:
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logger.warning(
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"image.width override (%d) exceeds model's "
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"maximum width (%d), will be ignored",
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overrides.width,
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width,
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)
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width = min(width, overrides.width)
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if overrides.height:
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if overrides.height > height:
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logger.warning(
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"image.height override (%d) exceeds model's "
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"maximum height (%d), will be ignored",
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overrides.height,
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height,
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)
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height = min(height, overrides.height)
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image = Image.new("RGB", (width, height), color=255)
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return [image] * num_images
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def _get_dummy_videos(
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self,
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*,
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width: int,
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height: int,
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num_frames: int,
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num_videos: int,
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overrides: VideoDummyOptions | None = None,
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) -> list[npt.NDArray]:
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if num_videos == 0:
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return []
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if overrides:
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if overrides.num_frames:
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if overrides.num_frames > num_frames:
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logger.warning(
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"video.num_frames override (%d) exceeds model's "
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"maximum number of frames (%d), will be ignored",
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overrides.num_frames,
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num_frames,
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)
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num_frames = min(num_frames, overrides.num_frames)
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if overrides.width:
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if overrides.width > width:
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logger.warning(
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"video.width override (%d) exceeds model's "
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"maximum width (%d), will be ignored",
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overrides.width,
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width,
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)
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width = min(width, overrides.width)
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if overrides.height:
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if overrides.height > height:
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logger.warning(
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"video.height override (%d) exceeds model's "
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"maximum height (%d), will be ignored",
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overrides.height,
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height,
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)
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height = min(height, overrides.height)
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video = np.full((num_frames, width, height, 3), 255, dtype=np.uint8)
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return [video] * num_videos
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