├── LICENSE
├── README.md
├── app.py
├── checkpoints
└── PUT_CKPT_HERE
├── docs
├── eval.md
├── inference.md
└── models.md
├── eval
├── eval_egoschema.py
├── eval_mlvu.py
├── eval_mvbench.py
└── eval_videomme.py
├── examples
├── video1.mp4
├── video2.mp4
└── video3.mp4
├── longvu
├── __init__.py
├── apply_delta.py
├── builder.py
├── cambrian_arch.py
├── consolidate.py
├── constants.py
├── conversation.py
├── file_io.py
├── language_model
│ ├── cambrian_llama.py
│ └── cambrian_qwen.py
├── make_delta.py
├── mm_datautils.py
├── mm_trainer.py
├── mm_utils.py
├── multimodal_encoder
│ ├── base_encoder.py
│ ├── builder.py
│ ├── dino_encoder.py
│ ├── drop.py
│ ├── image.py
│ ├── logging.py
│ ├── loss.py
│ ├── registry.py
│ ├── siglip_encoder.py
│ └── utils.py
├── multimodal_projector
│ └── builder.py
├── train.py
├── utils.py
└── vision_sampler.py
├── requirements.txt
└── scripts
├── train_image_llama3_2.sh
├── train_image_qwen.sh
├── train_video_llama3_2.sh
└── train_video_qwen.sh
/LICENSE:
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/README.md:
--------------------------------------------------------------------------------
1 | # LongVU
2 |
3 | > **LongVU: Spatiotemporal Adaptive Compression for Long Video-Language Understanding [ICML 2025]**
4 | >
5 | >
6 |
7 |
8 |

9 |
10 |
11 | ## :rocket: Quick Start
12 |
13 | Try our model on [HF 🤗 Demo](https://huggingface.co/spaces/Vision-CAIR/LongVU)
14 |
15 | Or demploy from local
16 |
17 | ### Linux
18 |
19 | ```
20 | git clone https://github.com/Vision-CAIR/LongVU
21 | cd LongVU
22 | conda create -n longvu python=3.10
23 | conda activate longvu
24 | pip install -r requirements.txt
25 | ```
26 |
27 | Download our checkpoints and put it under `./checkpoints`
28 |
29 | | Modality | LongVU_Qwen2_7B | LongVU_Llama3_2_3B |
30 | :--------------------------:| :--------------------------:|:--------------------------:
31 | | Image | [Download](https://huggingface.co/Vision-CAIR/LongVU_Qwen2_7B_img) | [Download](https://huggingface.co/Vision-CAIR/LongVU_Llama3_2_3B_img) |
32 | | Video | [Download](https://huggingface.co/Vision-CAIR/LongVU_Qwen2_7B) | [Download](https://huggingface.co/Vision-CAIR/LongVU_Llama3_2_3B) |
33 |
34 | Run demo `python app.py` locally with minimum 40G GPU.
35 |
36 |
37 | Click for quick inference code
38 |
39 | ```python
40 | import numpy as np
41 | import torch
42 | from longvu.builder import load_pretrained_model
43 | from longvu.constants import (
44 | DEFAULT_IMAGE_TOKEN,
45 | IMAGE_TOKEN_INDEX,
46 | )
47 | from longvu.conversation import conv_templates, SeparatorStyle
48 | from longvu.mm_datautils import (
49 | KeywordsStoppingCriteria,
50 | process_images,
51 | tokenizer_image_token,
52 | )
53 | from decord import cpu, VideoReader
54 |
55 | tokenizer, model, image_processor, context_len = load_pretrained_model(
56 | "./checkpoints/longvu_qwen", None, "cambrian_qwen",
57 | )
58 |
59 | model.eval()
60 | video_path = "./examples/video1.mp4"
61 | qs = "Describe this video in detail"
62 |
63 | vr = VideoReader(video_path, ctx=cpu(0), num_threads=1)
64 | fps = float(vr.get_avg_fps())
65 | frame_indices = np.array([i for i in range(0, len(vr), round(fps),)])
66 | video = []
67 | for frame_index in frame_indices:
68 | img = vr[frame_index].asnumpy()
69 | video.append(img)
70 | video = np.stack(video)
71 | image_sizes = [video[0].shape[:2]]
72 | video = process_images(video, image_processor, model.config)
73 | video = [item.unsqueeze(0) for item in video]
74 |
75 | qs = DEFAULT_IMAGE_TOKEN + "\n" + qs
76 | conv = conv_templates["qwen"].copy()
77 | conv.append_message(conv.roles[0], qs)
78 | conv.append_message(conv.roles[1], None)
79 | prompt = conv.get_prompt()
80 |
81 | input_ids = tokenizer_image_token(prompt, tokenizer, IMAGE_TOKEN_INDEX, return_tensors="pt").unsqueeze(0).to(model.device)
82 | stop_str = conv.sep if conv.sep_style != SeparatorStyle.TWO else conv.sep2
83 | keywords = [stop_str]
84 | stopping_criteria = KeywordsStoppingCriteria(keywords, tokenizer, input_ids)
85 | with torch.inference_mode():
86 | output_ids = model.generate(
87 | input_ids,
88 | images=video,
89 | image_sizes=image_sizes,
90 | do_sample=False,
91 | temperature=0.2,
92 | max_new_tokens=128,
93 | use_cache=True,
94 | stopping_criteria=[stopping_criteria],
95 | )
96 | pred = tokenizer.batch_decode(output_ids, skip_special_tokens=True)[0].strip()
97 | ```
98 |
99 |
100 |
101 | ### Windows
102 |
103 | Thanks the detailed instruction [(here)](https://github.com/Vision-CAIR/LongVU/issues/6) from @ipeevski for developing on Windows system with 24GB VRAM.
104 |
105 | ## Training
106 |
107 | ### Dataset
108 |
109 | + image-text stage: [LLaVA-OneVision-Single](https://huggingface.co/datasets/lmms-lab/LLaVA-OneVision-Data)
110 | + video-text stage: [VideoChat2-IT](https://huggingface.co/datasets/OpenGVLab/VideoChat2-IT)
111 |
112 | ### Scripts
113 |
114 | Experiments are run on 64 H100-96G
115 |
116 | Download [image_json_file](https://huggingface.co/datasets/shenxq/OneVision/blob/main/onevision.json) and [video_json_file](https://huggingface.co/datasets/shenxq/VideoChat2/blob/main/train_video_data.json).
117 |
118 | We also provide [row_video_data](https://huggingface.co/datasets/shenxq/VideoChat2) for easy downloading.
119 |
120 | Modify the PATH_TO_JSON and PATH_TO_FOLDER arguments in the training scripts to your save folder.
121 |
122 | ```
123 | PATH_TO_JSON=""
124 | PATH_TO_FOLDER=""
125 | ```
126 | Training your own model
127 | ```
128 | # image sft
129 | sh scripts/train_image_qwen.sh
130 | sh scripts/train_image_llama3_2.sh
131 | ```
132 |
133 | Modify PREV_STAGE_CHECKPOINT in the training scripts to your first stage model path
134 |
135 | Change `image_token_len` and `query_num_list` in `config.json` to 144
136 |
137 | ```
138 | # video sft
139 | sh scripts/train_video_qwen.sh
140 | sh scripts/train_video_llama3_2.sh
141 | ```
142 |
143 | ## Evaluation
144 |
145 | See detailed evaluation code in [eval.md](https://github.com/Vision-CAIR/LongVU/blob/main/docs/eval.md)
146 |
147 | ## Acknowledgement
148 |
149 | + The model architecture of LongVU follows [LLaVA](https://github.com/haotian-liu/LLaVA) and [Cambrian](https://github.com/cambrian-mllm/cambrian)
150 | + We base [Qwen2](https://huggingface.co/Qwen/Qwen2-7B-Instruct) and [Llama3.2](https://huggingface.co/meta-llama/Llama-3.2-3B-Instruct) as the language backbone
151 | + We use [SigLIP](https://huggingface.co/google/siglip-so400m-patch14-384) and [DINOv2](https://huggingface.co/facebook/dinov2-giant) as the vision encoder
152 |
153 | ## Citation
154 |
155 | ```
156 | @article{shen2024longvu,
157 | author ={Shen, Xiaoqian and Xiong, Yunyang and Zhao, Changsheng and Wu, Lemeng and Chen, Jun and Zhu, Chenchen and Liu, Zechun and Xiao, Fanyi and Varadarajan, Balakrishnan and Bordes, Florian and Liu, Zhuang and Xu, Hu and J. Kim, Hyunwoo and Soran, Bilge and Krishnamoorthi, Raghuraman and Elhoseiny, Mohamed and Chandra, Vikas},
158 | title = {LongVU: Spatiotemporal Adaptive Compression for Long Video-Language Understanding},
159 | journal = {arXiv preprint arXiv:2410.17434},
160 | year = {2024},
161 | }
162 | ```
163 |
--------------------------------------------------------------------------------
/app.py:
--------------------------------------------------------------------------------
1 | # import spaces
2 |
3 | import os
4 | import re
5 | import traceback
6 |
7 | import torch
8 | import gradio as gr
9 |
10 | import sys
11 |
12 | import numpy as np
13 |
14 | from longvu.builder import load_pretrained_model
15 | from longvu.constants import (
16 | DEFAULT_IMAGE_TOKEN,
17 | IMAGE_TOKEN_INDEX,
18 | )
19 | from longvu.conversation import conv_templates, SeparatorStyle
20 | from longvu.mm_datautils import (
21 | KeywordsStoppingCriteria,
22 | process_images,
23 | tokenizer_image_token,
24 | )
25 | from decord import cpu, VideoReader
26 |
27 |
28 | title_markdown = """
29 |
30 |
31 |
LongVU: Spatiotemporal Adaptive Compression for Long Video-Language Understanding
32 |
33 |
34 |
35 |
36 |

37 |

38 |
39 |
40 | """
41 |
42 | block_css = """
43 | #buttons button {
44 | min-width: min(120px,100%);
45 | color: #9C276A
46 | }
47 | """
48 |
49 | plum_color = gr.themes.colors.Color(
50 | name='plum',
51 | c50='#F8E4EF',
52 | c100='#E9D0DE',
53 | c200='#DABCCD',
54 | c300='#CBA8BC',
55 | c400='#BC94AB',
56 | c500='#AD809A',
57 | c600='#9E6C89',
58 | c700='#8F5878',
59 | c800='#804467',
60 | c900='#713056',
61 | c950='#662647',
62 | )
63 |
64 |
65 | class Chat:
66 |
67 | def __init__(self):
68 | self.version = "qwen"
69 | model_name = "cambrian_qwen"
70 | model_path = "./checkpoints/longvu_qwen"
71 | device = "cuda:7"
72 |
73 | self.tokenizer, self.model, self.processor, _ = load_pretrained_model(model_path, None, model_name, device=device)
74 | self.model.eval()
75 |
76 | def remove_after_last_dot(self, s):
77 | last_dot_index = s.rfind('.')
78 | if last_dot_index == -1:
79 | return s
80 | return s[:last_dot_index + 1]
81 |
82 | # @spaces.GPU(duration=120)
83 | @torch.inference_mode()
84 | def generate(self, data: list, message, temperature, top_p, max_output_tokens):
85 | # TODO: support multiple turns of conversation.
86 | assert len(data) == 1
87 |
88 | tensor, image_sizes, modal = data[0]
89 |
90 | conv = conv_templates[self.version].copy()
91 |
92 | if isinstance(message, str):
93 | conv.append_message("user", DEFAULT_IMAGE_TOKEN + '\n' + message)
94 | elif isinstance(message, list):
95 | if DEFAULT_IMAGE_TOKEN not in message[0]['content']:
96 | message[0]['content'] = DEFAULT_IMAGE_TOKEN + '\n' + message[0]['content']
97 | for mes in message:
98 | conv.append_message(mes["role"], mes["content"])
99 |
100 | conv.append_message("assistant", None)
101 |
102 | prompt = conv.get_prompt()
103 |
104 | input_ids = (
105 | tokenizer_image_token(prompt, self.tokenizer, IMAGE_TOKEN_INDEX, return_tensors="pt")
106 | .unsqueeze(0)
107 | .to(self.model.device)
108 | )
109 |
110 | if "llama3" in self.version:
111 | input_ids = input_ids[0][1:].unsqueeze(0) # remove bos
112 |
113 | stop_str = conv.sep if conv.sep_style != SeparatorStyle.TWO else conv.sep2
114 | keywords = [stop_str]
115 | stopping_criteria = KeywordsStoppingCriteria(keywords, self.tokenizer, input_ids)
116 | with torch.inference_mode():
117 | output_ids = self.model.generate(
118 | input_ids,
119 | images=tensor,
120 | image_sizes=image_sizes,
121 | do_sample=True,
122 | temperature=temperature,
123 | max_new_tokens=max_output_tokens,
124 | use_cache=True,
125 | top_p=top_p,
126 | stopping_criteria=[stopping_criteria],
127 | )
128 |
129 | pred = self.tokenizer.batch_decode(output_ids, skip_special_tokens=True)[0].strip()
130 |
131 | return self.remove_after_last_dot(pred)
132 |
133 |
134 | # @spaces.GPU(duration=120)
135 | def generate(image, video, message, chatbot, textbox_in, temperature, top_p, max_output_tokens, dtype=torch.float16):
136 | if textbox_in is None:
137 | raise gr.Error("Chat messages cannot be empty")
138 | return (
139 | gr.update(value=image, interactive=True),
140 | gr.update(value=video, interactive=True),
141 | message,
142 | chatbot,
143 | None,
144 | )
145 |
146 | data = []
147 |
148 | processor = handler.processor
149 | try:
150 | if image is not None:
151 | data.append((processor['image'](image).to(handler.model.device, dtype=dtype), None, ''))
152 | elif video is not None:
153 | vr = VideoReader(video, ctx=cpu(0), num_threads=1)
154 | fps = float(vr.get_avg_fps())
155 | frame_indices = np.array(
156 | [
157 | i
158 | for i in range(
159 | 0,
160 | len(vr),
161 | round(fps),
162 | )
163 | ]
164 | )
165 | video_tensor = []
166 | for frame_index in frame_indices:
167 | img = vr[frame_index].asnumpy()
168 | video_tensor.append(img)
169 | video_tensor = np.stack(video_tensor)
170 | image_sizes = [video_tensor[0].shape[:2]]
171 | video_tensor = process_images(video_tensor, processor, handler.model.config)
172 | video_tensor = [item.unsqueeze(0).to(handler.model.device, dtype=dtype) for item in video_tensor]
173 | data.append((video_tensor, image_sizes, '