update

README.md

@@ -3,12 +3,81 @@ license: mit
 ---
 # M4-LongVA-7B-Qwen2
 
-Enhancing Interactive Capabilities in VideoLLM
+![images](./assets/framework.png)
+
+Enhancing Interactive Capabilities in MLLM
 
 M4-7B is an extension of [LongVA-7B](https://github.com/EvolvingLMMs-Lab/LongVA), further trained using the [M4-IT](https://huggingface.co/datasets/ColorfulAI/M4-IT) dataset, which comprises 9,963 visual instruction tuning instances. This training was conducted without any special modifications to the existing training pipeline.
 
 ## Usage
 
-![images](./assets/framework.png)
+*Please refer to [M4](https://github.com/patrick-tssn/M4) to install relvevant packages*
+
+```python
+import os
+from PIL import Image
+import numpy as np
+import torchaudio
+import torch
+from decord import VideoReader, cpu
+import whisper
+# fix seed
+torch.manual_seed(0)
+
+from intersuit.model.builder import load_pretrained_model
+from intersuit.mm_utils import tokenizer_image_speech_tokens, process_images
+from intersuit.constants import IMAGE_TOKEN_INDEX, SPEECH_TOKEN_INDEX
+
+import ChatTTS
+chat = ChatTTS.Chat()
+chat.load(source='local', compile=True)
+
+import warnings
+warnings.filterwarnings("ignore")
+
+model_path = "checkpoints/M4-LongVA-7B-Qwen2"
+video_path = "local_demo/assets/water.mp4"
+max_frames_num = 16 # you can change this to several thousands so long you GPU memory can handle it :)
+gen_kwargs = {"do_sample": True, "temperature": 0.5, "top_p": None, "num_beams": 1, "use_cache": True, "max_new_tokens": 1024}
+tokenizer, model, image_processor, _ = load_pretrained_model(model_path, None, "llava_qwen", device_map="cuda:0", attn_implementation="eager")
+
+# original query
+query = "Give a detailed caption of the video as if I am blind."
+prompt = f"<|im_start|>system\nYou are a helpful assistant.<|im_end|>\n<|im_start|>user\n<image>{query}\n<|im_end|>\n<|im_start|>assistant\n"
+input_ids = tokenizer_image_speech_tokens(prompt, tokenizer, IMAGE_TOKEN_INDEX, SPEECH_TOKEN_INDEX, return_tensors="pt").unsqueeze(0).to(model.device)
+pad_token_ids = (tokenizer.pad_token_id if tokenizer.pad_token_id is not None else tokenizer.eos_token_id)
+attention_masks = input_ids.ne(pad_token_ids).to(input_ids.device)
+
+# new query
+new_query = "How many people in the video?"
+new_query = "Okay, I see."
+new_query = "Sorry to interrupt."
+new_query_pos = 10 # which token encounter the new query
+new_prompt = f"<|im_start|>system\nYou are a helpful assistant.<|im_end|>\n<|im_start|>user\n{new_query}\n<|im_end|>\n<|im_start|>assistant\n"
+new_input_ids = tokenizer_image_speech_tokens(new_prompt, tokenizer, IMAGE_TOKEN_INDEX, SPEECH_TOKEN_INDEX, return_tensors="pt").unsqueeze(0).to(model.device)
+
+#video input
+vr = VideoReader(video_path, ctx=cpu(0))
+total_frame_num = len(vr)
+uniform_sampled_frames = np.linspace(0, total_frame_num - 1, max_frames_num, dtype=int)
+frame_idx = uniform_sampled_frames.tolist()
+frames = vr.get_batch(frame_idx).asnumpy()
+video_tensor = image_processor.preprocess(frames, return_tensors="pt")["pixel_values"].to(model.device, dtype=torch.bfloat16)
+
+
+with torch.inference_mode():
+    output_ids = model.generate_parallel(input_ids, 
+                                attention_mask=attention_masks,
+                                images=[video_tensor], 
+                                modalities=["video"], 
+                                new_query=new_input_ids,
+                                new_query_pos=new_query_pos,
+                                query_str=query,
+                                new_query_str=new_query,
+                                tokenizer=tokenizer,
+                                **gen_kwargs)
+outputs = tokenizer.batch_decode(output_ids, skip_special_tokens=True)[0].strip()
+
+```
 
 For more information about the interaction inference pipeline, please visit the [M4 GitHub repository](https://github.com/patrick-tssn/M4).