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vllm/tests/multimodal/test_utils.py
2025-09-25 18:23:01 +00:00

390 lines
14 KiB
Python

# SPDX-License-Identifier: Apache-2.0
# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
import base64
import mimetypes
import os
from tempfile import NamedTemporaryFile, TemporaryDirectory
import numpy as np
import pytest
from PIL import Image, ImageChops
from vllm.multimodal.image import convert_image_mode
from vllm.multimodal.inputs import PlaceholderRange
from vllm.multimodal.utils import MediaConnector, argsort_mm_positions
# Test different image extensions (JPG/PNG) and formats (gray/RGB/RGBA)
TEST_IMAGE_ASSETS = [
"2560px-Gfp-wisconsin-madison-the-nature-boardwalk.jpg", # "https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Gfp-wisconsin-madison-the-nature-boardwalk.jpg/2560px-Gfp-wisconsin-madison-the-nature-boardwalk.jpg"
"Grayscale_8bits_palette_sample_image.png", # "https://upload.wikimedia.org/wikipedia/commons/f/fa/Grayscale_8bits_palette_sample_image.png",
"1280px-Venn_diagram_rgb.svg.png", # "https://upload.wikimedia.org/wikipedia/commons/thumb/9/91/Venn_diagram_rgb.svg/1280px-Venn_diagram_rgb.svg.png",
"RGBA_comp.png", # "https://upload.wikimedia.org/wikipedia/commons/0/0b/RGBA_comp.png",
]
TEST_VIDEO_URLS = [
"https://www.bogotobogo.com/python/OpenCV_Python/images/mean_shift_tracking/slow_traffic_small.mp4",
"https://github.com/opencv/opencv/raw/refs/tags/4.12.0/samples/data/vtest.avi",
]
@pytest.fixture(scope="module")
def url_images(local_asset_server) -> dict[str, Image.Image]:
return {
image_url: local_asset_server.get_image_asset(image_url)
for image_url in TEST_IMAGE_ASSETS
}
def get_supported_suffixes() -> tuple[str, ...]:
# We should at least test the file types mentioned in GPT-4 with Vision
OPENAI_SUPPORTED_SUFFIXES = ('.png', '.jpeg', '.jpg', '.webp', '.gif')
# Additional file types that are supported by us
EXTRA_SUPPORTED_SUFFIXES = ('.bmp', '.tiff')
return OPENAI_SUPPORTED_SUFFIXES + EXTRA_SUPPORTED_SUFFIXES
def _image_equals(a: Image.Image, b: Image.Image) -> bool:
return (np.asarray(a) == np.asarray(convert_image_mode(b, a.mode))).all()
@pytest.mark.asyncio
@pytest.mark.parametrize("image_url", TEST_IMAGE_ASSETS, indirect=True)
async def test_fetch_image_http(image_url: str):
connector = MediaConnector()
image_sync = connector.fetch_image(image_url)
image_async = await connector.fetch_image_async(image_url)
assert _image_equals(image_sync, image_async)
@pytest.mark.asyncio
@pytest.mark.parametrize("raw_image_url", TEST_IMAGE_ASSETS)
@pytest.mark.parametrize("suffix", get_supported_suffixes())
async def test_fetch_image_base64(url_images: dict[str, Image.Image],
raw_image_url: str, suffix: str):
connector = MediaConnector()
url_image = url_images[raw_image_url]
try:
mime_type = Image.MIME[Image.registered_extensions()[suffix]]
except KeyError:
try:
mime_type = mimetypes.types_map[suffix]
except KeyError:
pytest.skip('No MIME type')
with NamedTemporaryFile(suffix=suffix) as f:
try:
url_image.save(f.name)
except Exception as e:
if e.args[0] == 'cannot write mode RGBA as JPEG':
pytest.skip('Conversion not supported')
raise
base64_image = base64.b64encode(f.read()).decode("utf-8")
data_url = f"data:{mime_type};base64,{base64_image}"
data_image_sync = connector.fetch_image(data_url)
if _image_equals(url_image, Image.open(f)):
assert _image_equals(url_image, data_image_sync)
else:
pass # Lossy format; only check that image can be opened
data_image_async = await connector.fetch_image_async(data_url)
assert _image_equals(data_image_sync, data_image_async)
@pytest.mark.asyncio
@pytest.mark.parametrize("image_url", TEST_IMAGE_ASSETS, indirect=True)
async def test_fetch_image_local_files(image_url: str):
connector = MediaConnector()
with TemporaryDirectory() as temp_dir:
local_connector = MediaConnector(allowed_local_media_path=temp_dir)
origin_image = connector.fetch_image(image_url)
origin_image.save(os.path.join(temp_dir, os.path.basename(image_url)),
quality=100,
icc_profile=origin_image.info.get('icc_profile'))
image_async = await local_connector.fetch_image_async(
f"file://{temp_dir}/{os.path.basename(image_url)}")
image_sync = local_connector.fetch_image(
f"file://{temp_dir}/{os.path.basename(image_url)}")
# Check that the images are equal
assert not ImageChops.difference(image_sync, image_async).getbbox()
with pytest.raises(ValueError, match="must be a subpath"):
await local_connector.fetch_image_async(
f"file://{temp_dir}/../{os.path.basename(image_url)}")
with pytest.raises(RuntimeError, match="Cannot load local files"):
await connector.fetch_image_async(
f"file://{temp_dir}/../{os.path.basename(image_url)}")
with pytest.raises(ValueError, match="must be a subpath"):
local_connector.fetch_image(
f"file://{temp_dir}/../{os.path.basename(image_url)}")
with pytest.raises(RuntimeError, match="Cannot load local files"):
connector.fetch_image(
f"file://{temp_dir}/../{os.path.basename(image_url)}")
@pytest.mark.asyncio
@pytest.mark.parametrize("image_url", [TEST_IMAGE_ASSETS[0]], indirect=True)
async def test_fetch_image_local_files_with_space_in_name(image_url: str):
connector = MediaConnector()
with TemporaryDirectory() as temp_dir:
local_connector = MediaConnector(allowed_local_media_path=temp_dir)
origin_image = connector.fetch_image(image_url)
filename = "file name with space.jpg"
origin_image.save(os.path.join(temp_dir, filename),
quality=100,
icc_profile=origin_image.info.get('icc_profile'))
try:
image_async = await local_connector.fetch_image_async(
f"file://{temp_dir}/{filename}")
image_sync = local_connector.fetch_image(
f"file://{temp_dir}/{filename}")
except FileNotFoundError as e:
pytest.fail(
"Failed to fetch image with space in name: {}".format(e))
# Check that the images are equal
assert not ImageChops.difference(image_sync, image_async).getbbox()
@pytest.mark.asyncio
async def test_fetch_image_error_conversion():
connector = MediaConnector()
broken_img = "data:image/png;base64,aGVsbG9fdmxsbV9jb21tdW5pdHkK"
# PIL.UnidentifiedImageError should be converted to ValueError
with pytest.raises(ValueError):
await connector.fetch_image_async(broken_img)
with pytest.raises(ValueError):
connector.fetch_image(broken_img)
@pytest.mark.asyncio
@pytest.mark.parametrize("video_url", TEST_VIDEO_URLS)
@pytest.mark.parametrize("num_frames", [-1, 32, 1800])
async def test_fetch_video_http(video_url: str, num_frames: int):
connector = MediaConnector(
media_io_kwargs={"video": {
"num_frames": num_frames,
}})
video_sync, metadata_sync = connector.fetch_video(video_url)
video_async, metadata_async = await connector.fetch_video_async(video_url)
assert np.array_equal(video_sync, video_async)
assert metadata_sync == metadata_async
@pytest.mark.asyncio
@pytest.mark.parametrize("video_url", TEST_VIDEO_URLS)
@pytest.mark.parametrize("max_duration", [1, 60, 1800])
@pytest.mark.parametrize("requested_fps", [2, 24])
async def test_fetch_video_http_with_dynamic_loader(
video_url: str, max_duration: int, requested_fps: int,
monkeypatch: pytest.MonkeyPatch):
with monkeypatch.context() as m:
m.setenv("VLLM_VIDEO_LOADER_BACKEND", "opencv_dynamic")
connector = MediaConnector(
media_io_kwargs={
"video": {
"max_duration": max_duration,
"requested_fps": requested_fps,
}
})
video_sync, metadata_sync = connector.fetch_video(video_url)
video_async, metadata_async = await connector.fetch_video_async(
video_url)
assert np.array_equal(video_sync, video_async)
assert metadata_sync == metadata_async
assert metadata_sync["video_backend"] == "opencv_dynamic"
# yapf: disable
@pytest.mark.parametrize(
"case",
[
# Single modality
## Internally sorted
dict(
mm_positions={
"image": [
PlaceholderRange(offset=0, length=2),
PlaceholderRange(offset=3, length=2),
]
},
expected_modality_idxs=[
("image", 0),
("image", 1),
],
),
## Internally unsorted
dict(
mm_positions={
"image": [
PlaceholderRange(offset=3, length=2),
PlaceholderRange(offset=0, length=2),
]
},
expected_modality_idxs=[
("image", 1),
("image", 0),
],
),
# Two modalities
## Internally sorted
dict(
mm_positions={
"image": [
PlaceholderRange(offset=7, length=4),
PlaceholderRange(offset=11, length=5),
],
"audio": [
PlaceholderRange(offset=0, length=2),
PlaceholderRange(offset=2, length=3),
]
},
expected_modality_idxs=[
("audio", 0),
("audio", 1),
("image", 0),
("image", 1),
],
),
## Interleaved, internally sorted
dict(
mm_positions={
"image": [
PlaceholderRange(offset=0, length=4),
PlaceholderRange(offset=8, length=2),
],
"audio": [
PlaceholderRange(offset=5, length=2),
PlaceholderRange(offset=11, length=4),
]
},
expected_modality_idxs=[
("image", 0),
("audio", 0),
("image", 1),
("audio", 1),
],
),
## Interleaved, internally unsorted
dict(
mm_positions={
"image": [
PlaceholderRange(offset=8, length=2),
PlaceholderRange(offset=0, length=4),
],
"audio": [
PlaceholderRange(offset=11, length=4),
PlaceholderRange(offset=5, length=2),
]
},
expected_modality_idxs=[
("image", 1),
("audio", 1),
("image", 0),
("audio", 0),
],
),
# Three modalities
## Internally sorted
dict(
mm_positions={
"image": [
PlaceholderRange(offset=15, length=7),
PlaceholderRange(offset=22, length=8),
],
"audio": [
PlaceholderRange(offset=0, length=2),
],
"video": [
PlaceholderRange(offset=3, length=4),
PlaceholderRange(offset=7, length=5),
PlaceholderRange(offset=12, length=6),
]
},
expected_modality_idxs=[
("audio", 0),
("video", 0),
("video", 1),
("video", 2),
("image", 0),
("image", 1),
],
),
## Interleaved, internally sorted
dict(
mm_positions={
"image": [
PlaceholderRange(offset=0, length=2),
PlaceholderRange(offset=2, length=3),
PlaceholderRange(offset=20, length=4),
],
"audio": [
PlaceholderRange(offset=5, length=2),
],
"video": [
PlaceholderRange(offset=8, length=5),
]
},
expected_modality_idxs=[
("image", 0),
("image", 1),
("audio", 0),
("video", 0),
("image", 2),
],
),
## Interleaved, internally unsorted
dict(
mm_positions={
"image": [
PlaceholderRange(offset=0, length=2),
PlaceholderRange(offset=20, length=4),
PlaceholderRange(offset=2, length=3),
],
"audio": [
PlaceholderRange(offset=5, length=2),
],
"video": [
PlaceholderRange(offset=8, length=5),
]
},
expected_modality_idxs=[
("image", 0),
("image", 2),
("audio", 0),
("video", 0),
("image", 1),
],
),
],
)
# yapf: enable
def test_argsort_mm_positions(case):
mm_positions = case["mm_positions"]
expected_modality_idxs = case["expected_modality_idxs"]
modality_idxs = argsort_mm_positions(mm_positions)
assert modality_idxs == expected_modality_idxs