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1646ffb4d1
transformers/tests/models/video_llava/test_modeling_video_llava.py
Raushan Turganbay 1646ffb4d1
VLMs: patch_size -> num_image_tokens in processing (#33424) 
* use num additional tokens

* fix copies + docs

* another fix copies :)

* add docs

* move order for BC
2024-11-18 13:21:07 +01:00

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# coding=utf-8
# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Testing suite for the PyTorch VideoLlava model."""
import unittest
import numpy as np
import requests
from huggingface_hub import hf_hub_download
from transformers import (
VideoLlavaConfig,
VideoLlavaForConditionalGeneration,
VideoLlavaProcessor,
is_torch_available,
is_vision_available,
)
from transformers.testing_utils import (
cleanup,
require_bitsandbytes,
require_torch,
require_torch_gpu,
run_test_using_subprocess,
slow,
torch_device,
)
from ...generation.test_utils import GenerationTesterMixin
from ...test_configuration_common import ConfigTester
from ...test_modeling_common import ModelTesterMixin, floats_tensor, ids_tensor
if is_torch_available():
import torch
if is_vision_available():
from PIL import Image
class VideoLlavaVisionText2TextModelTester:
def __init__(
self,
parent,
ignore_index=-100,
image_token_index=0,
video_token_index=1,
projector_hidden_act="gelu",
seq_length=3,
num_frames=2,
vision_feature_select_strategy="default",
vision_feature_layer=-1,
text_config={
"model_type": "llama",
"seq_length": 13,
"is_training": True,
"use_input_mask": True,
"use_token_type_ids": False,
"use_labels": True,
"vocab_size": 99,
"hidden_size": 32,
"num_hidden_layers": 2,
"num_attention_heads": 4,
"intermediate_size": 37,
"hidden_act": "gelu",
"hidden_dropout_prob": 0.1,
"attention_probs_dropout_prob": 0.1,
"max_position_embeddings": 2048, # we need it high because videos are 8 frames
"type_vocab_size": 16,
"type_sequence_label_size": 2,
"initializer_range": 0.02,
"num_labels": 3,
"num_choices": 4,
"pad_token_id": 3,
},
is_training=True,
vision_config={
"model_type": "clip_vision_model",
"batch_size": 12,
"image_size": 8,
"patch_size": 6,
"num_channels": 3,
"is_training": True,
"hidden_size": 32,
"projection_dim": 32,
"num_hidden_layers": 2,
"num_attention_heads": 4,
"intermediate_size": 37,
"dropout": 0.1,
"attention_dropout": 0.1,
"initializer_range": 0.02,
},
):
self.parent = parent
self.ignore_index = ignore_index
self.image_token_index = image_token_index
self.video_token_index = video_token_index
self.projector_hidden_act = projector_hidden_act
self.vision_feature_select_strategy = vision_feature_select_strategy
self.vision_feature_layer = vision_feature_layer
self.text_config = text_config
self.vision_config = vision_config
self.num_frames = num_frames
self.pad_token_id = text_config["pad_token_id"]
self.num_hidden_layers = text_config["num_hidden_layers"]
self.vocab_size = text_config["vocab_size"]
self.hidden_size = text_config["hidden_size"]
self.num_attention_heads = text_config["num_attention_heads"]
self.is_training = is_training
self.batch_size = 5
self.num_channels = 3
self.image_size = 224
self.num_image_tokens = (vision_config["image_size"] // vision_config["patch_size"]) ** 2
self.num_video_tokens = (self.num_image_tokens + 1) * self.num_frames
self.seq_length = seq_length + self.num_image_tokens + self.num_video_tokens
self.encoder_seq_length = self.seq_length
def get_config(self):
return VideoLlavaConfig(
text_config=self.text_config,
vision_config=self.vision_config,
ignore_index=self.ignore_index,
image_token_index=self.image_token_index,
video_token_index=self.video_token_index,
projector_hidden_act=self.projector_hidden_act,
vision_feature_select_strategy=self.vision_feature_select_strategy,
vision_feature_layer=self.vision_feature_layer,
image_seq_length=self.num_image_tokens,
video_seq_length=self.num_video_tokens,
)
def prepare_config_and_inputs(self):
pixel_values_videos = floats_tensor(
[
self.batch_size,
self.num_frames,
self.vision_config["num_channels"],
self.vision_config["image_size"],
self.vision_config["image_size"],
]
)
pixel_values_images = floats_tensor(
[
self.batch_size,
self.vision_config["num_channels"],
self.vision_config["image_size"],
self.vision_config["image_size"],
]
)
config = self.get_config()
return config, pixel_values_images, pixel_values_videos
def prepare_config_and_inputs_for_common(self):
config_and_inputs = self.prepare_config_and_inputs()
config, pixel_values_images, pixel_values_videos = config_and_inputs
input_ids = ids_tensor([self.batch_size, self.seq_length], config.text_config.vocab_size - 1) + 1
attention_mask = input_ids.ne(1).to(torch_device)
input_ids[(input_ids == config.image_token_index) | (input_ids == config.video_token_index)] = (
self.pad_token_id
)
input_ids[:, : self.num_image_tokens] = config.image_token_index
input_ids[:, self.num_image_tokens : self.num_video_tokens + self.num_image_tokens] = config.video_token_index
inputs_dict = {
"pixel_values_videos": pixel_values_videos,
"pixel_values_images": pixel_values_images,
"input_ids": input_ids,
"attention_mask": attention_mask,
}
return config, inputs_dict
def prepare_config_and_inputs_for_batched_test(self):
config_and_inputs = self.prepare_config_and_inputs()
config, _, pixel_values_videos = config_and_inputs
input_ids = ids_tensor([self.batch_size, self.seq_length], config.text_config.vocab_size - 1) + 1
attention_mask = input_ids.ne(1).to(torch_device)
# make sure no other special tokens are set
input_ids[(input_ids == 0) | (input_ids == 1)] = 3
input_ids[:, 0] = config.video_token_index
inputs_dict = {
"pixel_values_videos": pixel_values_videos,
"input_ids": input_ids,
"attention_mask": attention_mask,
}
return config, inputs_dict
@require_torch
class VideoLlavaForConditionalGenerationModelTest(ModelTesterMixin, GenerationTesterMixin, unittest.TestCase):
"""
Model tester for `VideoLlavaForConditionalGeneration`.
"""
all_model_classes = (VideoLlavaForConditionalGeneration,) if is_torch_available() else ()
all_generative_model_classes = (VideoLlavaForConditionalGeneration,) if is_torch_available() else ()
fx_compatible = False
test_pruning = False
test_resize_embeddings = True
test_head_masking = False
_is_composite = True
def setUp(self):
self.model_tester = VideoLlavaVisionText2TextModelTester(self)
common_properties = ["image_token_index", "video_token_index", "vision_feature_layer", "image_seq_length"]
self.config_tester = ConfigTester(
self, config_class=VideoLlavaConfig, has_text_modality=False, common_properties=common_properties
)
def test_config(self):
self.config_tester.run_common_tests()
@unittest.skip(
reason="This architecure seem to not compute gradients properly when using GC, check: https://github.com/huggingface/transformers/pull/27124"
)
def test_training_gradient_checkpointing(self):
pass
@unittest.skip(
reason="This architecure seem to not compute gradients properly when using GC, check: https://github.com/huggingface/transformers/pull/27124"
)
def test_training_gradient_checkpointing_use_reentrant(self):
pass
@unittest.skip(
reason="This architecure seem to not compute gradients properly when using GC, check: https://github.com/huggingface/transformers/pull/27124"
)
def test_training_gradient_checkpointing_use_reentrant_false(self):
pass
@unittest.skip(reason="Pass because video-LLava requires `attention_mask is not None`")
def test_sdpa_can_compile_dynamic(self):
pass
@unittest.skip(reason="Pass because video-LLava requires `attention_mask is not None`")
def test_sdpa_can_dispatch_on_flash(self):
pass
@unittest.skip("FlashAttention only support fp16 and bf16 data type")
def test_flash_attn_2_fp32_ln(self):
pass
@unittest.skip(
"VLMs need lots of steps to prepare images/mask correctly to get pad-free inputs. Can be tested as part of LLM test"
)
def test_flash_attention_2_padding_matches_padding_free_with_position_ids(self):
pass
@run_test_using_subprocess
def test_mixed_input(self):
config, inputs = self.model_tester.prepare_config_and_inputs_for_common()
for model_class in self.all_model_classes:
model = model_class(config).to(torch_device).eval()
# test that the forward does not fail
with torch.no_grad():
_ = model(**inputs)
# if we remove some images from inputs leaving only one
# image number mismatch error should raise
inputs["pixel_values_images"] = inputs["pixel_values_images"][:1]
with self.assertRaises(ValueError):
_ = model(**inputs)
def test_video_only_input(self):
config, inputs = self.model_tester.prepare_config_and_inputs_for_common()
for model_class in self.all_model_classes:
model = model_class(config).to(torch_device).eval()
# replace image token id with dummy id
# Error will be raised as num-image-tokens and num-of-image-embeds mismatch
inputs["input_ids"][:, : self.model_tester.num_image_tokens] = 2
with self.assertRaises(ValueError):
_ = model(**inputs)
inputs["pixel_values_images"] = None
_ = model(**inputs)
def test_image_only_input(self):
config, inputs = self.model_tester.prepare_config_and_inputs_for_common()
for model_class in self.all_model_classes:
model = model_class(config).to(torch_device).eval()
# set dummy id, which is not video token id
# Error will be raised as num-video-tokens and num-of-video-embeds mismatch
inputs["input_ids"][
:,
self.model_tester.num_image_tokens : self.model_tester.num_image_tokens
+ self.model_tester.num_video_tokens,
] = 2
with self.assertRaises(ValueError):
_ = model(**inputs)
inputs["pixel_values_videos"] = None
_ = model(**inputs)
def test_batching_equivalence(self):
def recursive_check(batched_object, single_row_object, model_name, key):
if isinstance(batched_object, (list, tuple)):
for batched_object_value, single_row_object_value in zip(batched_object, single_row_object):
recursive_check(batched_object_value, single_row_object_value, model_name, key)
# do not compare returned loss (0-dim tensor) / codebook ids (int) / caching objects
elif batched_object is None or not isinstance(batched_object, torch.Tensor):
return
elif batched_object.dim() == 0:
return
else:
batched_row = batched_object[:1]
self.assertFalse(
torch.isnan(batched_row).any(), f"Batched output has `nan` in {model_name} for key={key}"
)
self.assertFalse(
torch.isinf(batched_row).any(), f"Batched output has `inf` in {model_name} for key={key}"
)
self.assertFalse(
torch.isnan(single_row_object).any(), f"Single row output has `nan` in {model_name} for key={key}"
)
self.assertFalse(
torch.isinf(single_row_object).any(), f"Single row output has `inf` in {model_name} for key={key}"
)
self.assertTrue(
(torch.max(torch.abs(batched_row - single_row_object))) <= 1e-03,
msg=(
f"Batched and Single row outputs are not equal in {model_name} for key={key}. "
f"Difference={torch.max(torch.abs(batched_row - single_row_object))}."
),
)
config, batched_input = self.model_tester.prepare_config_and_inputs_for_batched_test()
for model_class in self.all_model_classes:
config.output_hidden_states = True
model_name = model_class.__name__
batched_input_prepared = self._prepare_for_class(batched_input, model_class)
model = model_class(config).to(torch_device).eval()
single_row_input = {}
for key, value in batched_input_prepared.items():
single_row_input[key] = value[:1]
with torch.no_grad():
model_batched_output = model(**batched_input_prepared)
model_row_output = model(**single_row_input)
for key in model_batched_output:
# we can't test videos as their output shapes are linked to number of frames
# and we don't have to as it is a CLIP model and can be tested from `ClipModelTester` class
if key == "video_hidden_states":
continue
recursive_check(model_batched_output[key], model_row_output[key], model_name, key)
# overwrite inputs_embeds tests because we need to delete "pixel values" for LVLMs
def test_inputs_embeds(self):
config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
for model_class in self.all_model_classes:
model = model_class(config)
model.to(torch_device)
model.eval()
inputs = self._prepare_for_class(inputs_dict, model_class)
input_ids = inputs["input_ids"]
del inputs["input_ids"]
del inputs["pixel_values_images"]
del inputs["pixel_values_videos"]
wte = model.get_input_embeddings()
inputs["inputs_embeds"] = wte(input_ids)
with torch.no_grad():
model(**inputs)
# overwrite inputs_embeds tests because we need to delete "pixel values" for LVLMs
# while some other models require pixel_values to be present
def test_inputs_embeds_matches_input_ids(self):
config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
for model_class in self.all_model_classes:
model = model_class(config)
model.to(torch_device)
model.eval()
inputs = self._prepare_for_class(inputs_dict, model_class)
input_ids = inputs["input_ids"]
del inputs["input_ids"]
del inputs["pixel_values_images"]
del inputs["pixel_values_videos"]
inputs_embeds = model.get_input_embeddings()(input_ids)
with torch.no_grad():
out_ids = model(input_ids=input_ids, **inputs)[0]
out_embeds = model(inputs_embeds=inputs_embeds, **inputs)[0]
self.assertTrue(torch.allclose(out_embeds, out_ids))
def test_mismatching_num_image_tokens(self):
"""
Tests that VLMs through an error with explicit message saying what is wrong
when number of images don't match number of image tokens in the text.
Also we need to test multi-image cases when one prompr has multiple image tokens.
"""
config, input_dict = self.model_tester.prepare_config_and_inputs_for_common()
for model_class in self.all_model_classes:
model = model_class(config).to(torch_device)
_ = model(**input_dict) # successfull forward with no modifications
# remove one image but leave the image token in text
input_dict["pixel_values_images"] = input_dict["pixel_values_images"][-1:, ...]
with self.assertRaises(ValueError):
_ = model(**input_dict)
# simulate multi-image case by concatenating inputs where each has exactly one image/image-token
input_ids = input_dict["input_ids"][:1]
pixel_values = input_dict["pixel_values_images"][:1]
input_ids = torch.cat([input_ids, input_ids], dim=0)
# one image and two image tokens raise an error
with self.assertRaises(ValueError):
_ = model(input_ids=input_ids, pixel_values_images=pixel_values)
# two images and two image tokens don't raise an error
pixel_values = torch.cat([pixel_values, pixel_values], dim=0)
_ = model(input_ids=input_ids, pixel_values_images=pixel_values)
@require_torch
class VideoLlavaForConditionalGenerationIntegrationTest(unittest.TestCase):
def setUp(self):
self.processor = VideoLlavaProcessor.from_pretrained("LanguageBind/Video-LLaVA-7B-hf")
def tearDown(self):
cleanup(torch_device, gc_collect=True)
@slow
@require_bitsandbytes
def test_small_model_integration_test(self):
# Let' s make sure we test the preprocessing to replace what is used
model = VideoLlavaForConditionalGeneration.from_pretrained("LanguageBind/Video-LLaVA-7B-hf", load_in_4bit=True)
prompt = "USER: <video>\nWhy is this video funny? ASSISTANT:"
video_file = hf_hub_download(
repo_id="raushan-testing-hf/videos-test", filename="video_demo.npy", repo_type="dataset"
)
video_file = np.load(video_file)
inputs = self.processor(prompt, videos=video_file, return_tensors="pt")
EXPECTED_INPUT_IDS = torch.tensor([[1, 3148, 1001, 29901, 29871, 32001, 13, 11008, 338, 445, 4863, 2090, 1460, 29973, 319, 1799, 9047, 13566, 29901]]) # fmt: skip
self.assertTrue(torch.equal(inputs["input_ids"], EXPECTED_INPUT_IDS))
output = model.generate(**inputs, do_sample=False, max_new_tokens=20)
EXPECTED_DECODED_TEXT = "USER: \nWhy is this video funny? ASSISTANT: The video is funny because it shows a baby sitting on a bed and reading a book, which" # fmt: skip
self.assertEqual(
self.processor.decode(output[0], skip_special_tokens=True),
EXPECTED_DECODED_TEXT,
)
@slow
@require_bitsandbytes
def test_small_model_integration_test_mixed_inputs(self):
model = VideoLlavaForConditionalGeneration.from_pretrained("LanguageBind/Video-LLaVA-7B-hf", load_in_4bit=True)
prompts = [
"USER: <image>\nWhat are the cats in the image doing? ASSISTANT:",
"USER: <video>\nWhy is this video funny? ASSISTANT:",
]
video_file = hf_hub_download(
repo_id="raushan-testing-hf/videos-test", filename="video_demo.npy", repo_type="dataset"
)
video_file = np.load(video_file)
url = "http://images.cocodataset.org/val2017/000000039769.jpg"
image = Image.open(requests.get(url, stream=True).raw)
inputs = self.processor(prompts, images=[image], videos=[video_file], padding=True, return_tensors="pt")
output = model.generate(**inputs, do_sample=False, max_new_tokens=20)
EXPECTED_DECODED_TEXT = [
'USER: \nWhat are the cats in the image doing? ASSISTANT: The cats in the image are sleeping or resting on a couch.',
'USER: \nWhy is this video funny? ASSISTANT: The video is funny because it shows a baby sitting on a bed and reading a book. The'
] # fmt: skip
self.assertEqual(
self.processor.batch_decode(output, skip_special_tokens=True),
EXPECTED_DECODED_TEXT,
)
@slow
@require_bitsandbytes
def test_small_model_integration_test_llama(self):
model = VideoLlavaForConditionalGeneration.from_pretrained("LanguageBind/Video-LLaVA-7B-hf", load_in_4bit=True)
processor = VideoLlavaProcessor.from_pretrained("LanguageBind/Video-LLaVA-7B-hf")
prompt = "USER: <video>\nDescribe the video in details. ASSISTANT:"
video_file = hf_hub_download(
repo_id="raushan-testing-hf/videos-test", filename="video_demo.npy", repo_type="dataset"
)
video_file = np.load(video_file)
inputs = self.processor(prompt, videos=video_file, return_tensors="pt").to(torch_device, torch.float16)
output = model.generate(**inputs, max_new_tokens=900, do_sample=False)
EXPECTED_DECODED_TEXT = "USER: \nDescribe the video in details. ASSISTANT: The video features a young child sitting on a bed, holding a book and reading it. " \
"The child appears to be enjoying the book, as they are fully engaged in the activity. The bed is located in a bedroom, and there is a chair nearby. The " \
"child is wearing a blue shirt and glasses, which suggests that they might have a visual impairment. The room is well-lit, and there is a clock on the wall, " \
"indicating the time. The child's focus on the book indicates that they are interested in the content and are actively participating in the reading process. " \
"Overall, the video captures a heartwarming moment of a child engaging in a simple yet essential activity, which is reading." # fmt: skip
self.assertEqual(
processor.decode(output[0], skip_special_tokens=True),
EXPECTED_DECODED_TEXT,
)
@slow
@require_bitsandbytes
def test_small_model_integration_test_llama_batched(self):
model = VideoLlavaForConditionalGeneration.from_pretrained("LanguageBind/Video-LLaVA-7B-hf", load_in_4bit=True)
processor = VideoLlavaProcessor.from_pretrained("LanguageBind/Video-LLaVA-7B-hf")
processor.tokenizer.padding_side = "left"
prompts = [
"USER: <video>\nWhat is the baby doing? ASSISTANT:",
"USER: <video>\nWho is sitting next to the woman? ASSISTANT:",
]
video_1 = np.load(
hf_hub_download(repo_id="raushan-testing-hf/videos-test", filename="video_demo.npy", repo_type="dataset")
)
video_2 = np.load(
hf_hub_download(repo_id="raushan-testing-hf/videos-test", filename="video_demo_2.npy", repo_type="dataset")
)
inputs = processor(prompts, videos=[video_1, video_2], return_tensors="pt", padding=True)
output = model.generate(**inputs, max_new_tokens=20)
EXPECTED_DECODED_TEXT = [
'USER: \nWhat is the baby doing? ASSISTANT: The baby is sitting on a bed and reading a book.',
'USER: \nWho is sitting next to the woman? ASSISTANT: A small dog is sitting next to the woman.'
] # fmt: skip
self.assertEqual(processor.batch_decode(output, skip_special_tokens=True), EXPECTED_DECODED_TEXT)
@slow
@require_bitsandbytes
def test_video_llava_index_error_bug(self):
# This is a reproducer of https://github.com/huggingface/transformers/pull/28032 and makes sure it does not happen anymore
# Please refer to that PR, or specifically https://github.com/huggingface/transformers/pull/28032#issuecomment-1860650043 for
# more details
model = VideoLlavaForConditionalGeneration.from_pretrained("LanguageBind/Video-LLaVA-7B-hf", load_in_4bit=True)
# Simulate a super long prompt
user_prompt = "Describe the video:?\n" * 200
prompt = f"USER: <video>{user_prompt}ASSISTANT:"
video_file = hf_hub_download(
repo_id="raushan-testing-hf/videos-test", filename="video_demo.npy", repo_type="dataset"
)
video_file = np.load(video_file)
# let's expand it for 16 frames, to check model can handle any number of frames
video_file = video_file.repeat(2, 0)
inputs = self.processor(prompt, videos=video_file, return_tensors="pt").to(torch_device, torch.float16)
# Make sure that `generate` works
_ = model.generate(**inputs, max_new_tokens=20)
@slow
@require_torch_gpu
def test_video_llava_merge_inputs_error_bug(self):
# This is a reproducer of https://github.com/huggingface/transformers/pull/28333 and makes sure it does not happen anymore
model = VideoLlavaForConditionalGeneration.from_pretrained("LanguageBind/Video-LLaVA-7B-hf", load_in_4bit=True)
# Simulate some user inputs
pixel_values_videos = torch.randn(
(1, 8, 3, 224, 224),
dtype=torch.float,
device=torch_device,
)
# fmt: off
input_ids = torch.tensor(
[[32002, 32002, 1, 15043, 7084, 32001, 29871, 13, 7900]],
dtype=torch.long,
device=torch_device,
)
# fmt: on
attention_mask = torch.tensor(
[[0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]],
dtype=torch.long,
device=torch_device,
)
# Make sure that the loss is properly computed
loss = model(
pixel_values_videos=pixel_values_videos,
input_ids=input_ids,
attention_mask=attention_mask,
labels=input_ids,
).loss
loss.backward()
@slow
@require_bitsandbytes
def test_expansion_in_processing_images(self):
model_id = "LanguageBind/Video-LLaVA-7B-hf"
model = VideoLlavaForConditionalGeneration.from_pretrained(model_id, load_in_4bit=True)
processor = VideoLlavaProcessor.from_pretrained(model_id)
prompt = "USER: <image>\nDescribe the image in details. ASSISTANT:"
url = "http://images.cocodataset.org/val2017/000000039769.jpg"
image = Image.open(requests.get(url, stream=True).raw)
# check processing with expansion of inputs
processor.vision_feature_select_strategy = "default"
processor.patch_size = 14
processor.num_additional_image_tokens = 1
inputs_expanded = processor(prompt, images=image, return_tensors="pt").to(torch_device, torch.float16)
self.assertTrue(inputs_expanded.input_ids.shape[-1] == 274)
# check processing without expansion of inputs (legacy behavior)
processor.vision_feature_select_strategy = None
processor.patch_size = None
processor.num_additional_image_tokens = None
inputs = processor(prompt, images=image, return_tensors="pt").to(torch_device, torch.float16)
self.assertTrue(inputs.input_ids.shape[-1] == 19)
# generate exactly 20 tokens
output = model.generate(**inputs, min_new_tokens=20, max_new_tokens=20)
output_expanded = model.generate(**inputs_expanded, min_new_tokens=20, max_new_tokens=20)
# check that both inputs are handled correctly and generate the same output
self.assertListEqual(output_expanded[:, -20:].tolist(), output[:, -20:].tolist())
@slow
@require_bitsandbytes
def test_expansion_in_processing(self):
model_id = "LanguageBind/Video-LLaVA-7B-hf"
model = VideoLlavaForConditionalGeneration.from_pretrained(model_id, load_in_4bit=True)
processor = VideoLlavaProcessor.from_pretrained(model_id)
prompt = "USER: <video>\nDescribe the video in details. ASSISTANT:"
video_file = hf_hub_download(
repo_id="raushan-testing-hf/videos-test", filename="video_demo.npy", repo_type="dataset"
)
video_file = np.load(video_file)
# check processing with expansion of inputs
processor.vision_feature_select_strategy = "default"
processor.patch_size = 14
processor.num_additional_image_tokens = 1
inputs_expanded = processor(prompt, videos=video_file, return_tensors="pt").to(torch_device, torch.float16)
self.assertTrue(inputs_expanded.input_ids.shape[-1] == 2074)
# check processing without expansion of inputs (legacy behavior)
processor.vision_feature_select_strategy = None
processor.patch_size = None
processor.num_additional_image_tokens = None
inputs = processor(prompt, videos=video_file, return_tensors="pt").to(torch_device, torch.float16)
self.assertTrue(inputs.input_ids.shape[-1] == 19)
# generate exactly 20 tokens
output = model.generate(**inputs, min_new_tokens=20, max_new_tokens=20)
output_expanded = model.generate(**inputs_expanded, min_new_tokens=20, max_new_tokens=20)
# check that both inputs are handled correctly and generate the same output
self.assertListEqual(output_expanded[:, -20:].tolist(), output[:, -20:].tolist())
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