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README.md

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----
-title: Thisismine
-emoji: 📉
-colorFrom: purple
-colorTo: green
-sdk: gradio
-sdk_version: 4.31.4
-app_file: app.py
-pinned: false
-license: apache-2.0
----
-
-Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
+---
+title: Thisismine
+emoji: 📉
+colorFrom: purple
+colorTo: green
+sdk: gradio
+sdk_version: 4.31.4
+app_file: app.py
+pinned: false
+license: apache-2.0
+---
+
+Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference

app.py

@@ -0,0 +1,493 @@
+#!/usr/bin/env python
+"""
+This script runs a Gradio App for the Open-Sora model.
+
+Usage:
+    python demo.py <config-path>
+"""
+
+import argparse
+import importlib
+import os
+import subprocess
+import sys
+import re
+import json
+import math
+
+import spaces
+import torch
+
+import gradio as gr
+
+
+MODEL_TYPES = ["v1.1"]
+CONFIG_MAP = {
+    "v1.1-stage2": "configs/opensora-v1-1/inference/sample-ref.py",
+    "v1.1-stage3": "configs/opensora-v1-1/inference/sample-ref.py",
+}
+HF_STDIT_MAP = {
+    "v1.1-stage2": "hpcai-tech/OpenSora-STDiT-v2-stage2",
+    "v1.1-stage3": "hpcai-tech/OpenSora-STDiT-v2-stage3",
+}
+RESOLUTION_MAP = {
+    "144p": (256, 144),
+    "240p": (426, 240),
+    "360p": (480, 360),
+    "480p": (858, 480),
+    "720p": (1280, 720),
+    "1080p": (1920, 1080)
+}
+
+
+# ============================
+# Utils
+# ============================
+def collect_references_batch(reference_paths, vae, image_size):
+    from opensora.datasets.utils import read_from_path
+
+    refs_x = []
+    for reference_path in reference_paths:
+        if reference_path is None:
+            refs_x.append([])
+            continue
+        ref_path = reference_path.split(";")
+        ref = []
+        for r_path in ref_path:
+            r = read_from_path(r_path, image_size, transform_name="resize_crop")
+            r_x = vae.encode(r.unsqueeze(0).to(vae.device, vae.dtype))
+            r_x = r_x.squeeze(0)
+            ref.append(r_x)
+        refs_x.append(ref)
+    # refs_x: [batch, ref_num, C, T, H, W]
+    return refs_x
+
+
+def process_mask_strategy(mask_strategy):
+    mask_batch = []
+    mask_strategy = mask_strategy.split(";")
+    for mask in mask_strategy:
+        mask_group = mask.split(",")
+        assert len(mask_group) >= 1 and len(mask_group) <= 6, f"Invalid mask strategy: {mask}"
+        if len(mask_group) == 1:
+            mask_group.extend(["0", "0", "0", "1", "0"])
+        elif len(mask_group) == 2:
+            mask_group.extend(["0", "0", "1", "0"])
+        elif len(mask_group) == 3:
+            mask_group.extend(["0", "1", "0"])
+        elif len(mask_group) == 4:
+            mask_group.extend(["1", "0"])
+        elif len(mask_group) == 5:
+            mask_group.append("0")
+        mask_batch.append(mask_group)
+    return mask_batch
+
+
+def apply_mask_strategy(z, refs_x, mask_strategys, loop_i):
+    masks = []
+    for i, mask_strategy in enumerate(mask_strategys):
+        mask = torch.ones(z.shape[2], dtype=torch.float, device=z.device)
+        if mask_strategy is None:
+            masks.append(mask)
+            continue
+        mask_strategy = process_mask_strategy(mask_strategy)
+        for mst in mask_strategy:
+            loop_id, m_id, m_ref_start, m_target_start, m_length, edit_ratio = mst
+            loop_id = int(loop_id)
+            if loop_id != loop_i:
+                continue
+            m_id = int(m_id)
+            m_ref_start = int(m_ref_start)
+            m_length = int(m_length)
+            m_target_start = int(m_target_start)
+            edit_ratio = float(edit_ratio)
+            ref = refs_x[i][m_id]  # [C, T, H, W]
+            if m_ref_start < 0:
+                m_ref_start = ref.shape[1] + m_ref_start
+            if m_target_start < 0:
+                # z: [B, C, T, H, W]
+                m_target_start = z.shape[2] + m_target_start
+            z[i, :, m_target_start : m_target_start + m_length] = ref[:, m_ref_start : m_ref_start + m_length]
+            mask[m_target_start : m_target_start + m_length] = edit_ratio
+        masks.append(mask)
+    masks = torch.stack(masks)
+    return masks
+
+
+def process_prompts(prompts, num_loop):
+    from opensora.models.text_encoder.t5 import text_preprocessing
+
+    ret_prompts = []
+    for prompt in prompts:
+        if prompt.startswith("|0|"):
+            prompt_list = prompt.split("|")[1:]
+            text_list = []
+            for i in range(0, len(prompt_list), 2):
+                start_loop = int(prompt_list[i])
+                text = prompt_list[i + 1]
+                text = text_preprocessing(text)
+                end_loop = int(prompt_list[i + 2]) if i + 2 < len(prompt_list) else num_loop
+                text_list.extend([text] * (end_loop - start_loop))
+            assert len(text_list) == num_loop, f"Prompt loop mismatch: {len(text_list)} != {num_loop}"
+            ret_prompts.append(text_list)
+        else:
+            prompt = text_preprocessing(prompt)
+            ret_prompts.append([prompt] * num_loop)
+    return ret_prompts
+
+
+def extract_json_from_prompts(prompts):
+    additional_infos = []
+    ret_prompts = []
+    for prompt in prompts:
+        parts = re.split(r"(?=[{\[])", prompt)
+        assert len(parts) <= 2, f"Invalid prompt: {prompt}"
+        ret_prompts.append(parts[0])
+        if len(parts) == 1:
+            additional_infos.append({})
+        else:
+            additional_infos.append(json.loads(parts[1]))
+    return ret_prompts, additional_infos
+
+
+# ============================
+# Runtime Environment
+# ============================
+def install_dependencies(enable_optimization=False):
+    """
+    Install the required dependencies for the demo if they are not already installed.
+    """
+
+    def _is_package_available(name) -> bool:
+        try:
+            importlib.import_module(name)
+            return True
+        except (ImportError, ModuleNotFoundError):
+            return False
+
+    # flash attention is needed no matter optimization is enabled or not
+    # because Hugging Face transformers detects flash_attn is a dependency in STDiT
+    # thus, we need to install it no matter what
+    if not _is_package_available("flash_attn"):
+        subprocess.run(
+            f"{sys.executable} -m pip install flash-attn --no-build-isolation",
+            env={"FLASH_ATTENTION_SKIP_CUDA_BUILD": "TRUE"},
+            shell=True,
+        )
+
+    if enable_optimization:
+        # install apex for fused layernorm
+        if not _is_package_available("apex"):
+            subprocess.run(
+                f'{sys.executable} -m pip install -v --disable-pip-version-check --no-cache-dir --no-build-isolation --config-settings "--build-option=--cpp_ext" --config-settings "--build-option=--cuda_ext" git+https://github.com/NVIDIA/apex.git',
+                shell=True,
+            )
+
+        # install ninja
+        if not _is_package_available("ninja"):
+            subprocess.run(f"{sys.executable} -m pip install ninja", shell=True)
+
+        # install xformers
+        if not _is_package_available("xformers"):
+            subprocess.run(
+                f"{sys.executable} -m pip install -v -U git+https://github.com/facebookresearch/xformers.git@main#egg=xformers",
+                shell=True,
+            )
+
+
+# ============================
+# Model-related
+# ============================
+def read_config(config_path):
+    """
+    Read the configuration file.
+    """
+    from mmengine.config import Config
+
+    return Config.fromfile(config_path)
+
+
+def build_models(model_type, config, enable_optimization=False):
+    """
+    Build the models for the given model type and configuration.
+    """
+    # build vae
+    from opensora.registry import MODELS, build_module
+
+    vae = build_module(config.vae, MODELS).cuda()
+
+    # build text encoder
+    text_encoder = build_module(config.text_encoder, MODELS)  # T5 must be fp32
+    text_encoder.t5.model = text_encoder.t5.model.cuda()
+
+    # build stdit
+    # we load model from HuggingFace directly so that we don't need to
+    # handle model download logic in HuggingFace Space
+    from transformers import AutoModel
+
+    stdit = AutoModel.from_pretrained(
+        HF_STDIT_MAP[model_type],
+        enable_flash_attn=enable_optimization,
+        trust_remote_code=True,
+    ).cuda()
+
+    # build scheduler
+    from opensora.registry import SCHEDULERS
+
+    scheduler = build_module(config.scheduler, SCHEDULERS)
+
+    # hack for classifier-free guidance
+    text_encoder.y_embedder = stdit.y_embedder
+
+    # move modelst to device
+    vae = vae.to(torch.bfloat16).eval()
+    text_encoder.t5.model = text_encoder.t5.model.eval()  # t5 must be in fp32
+    stdit = stdit.to(torch.bfloat16).eval()
+
+    # clear cuda
+    torch.cuda.empty_cache()
+    return vae, text_encoder, stdit, scheduler
+
+
+def parse_args():
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "--model-type",
+        default="v1.1-stage3",
+        choices=MODEL_TYPES,
+        help=f"The type of model to run for the Gradio App, can only be {MODEL_TYPES}",
+    )
+    parser.add_argument("--output", default="./outputs", type=str, help="The path to the output folder")
+    parser.add_argument("--port", default=None, type=int, help="The port to run the Gradio App on.")
+    parser.add_argument("--host", default=None, type=str, help="The host to run the Gradio App on.")
+    parser.add_argument("--share", action="store_true", help="Whether to share this gradio demo.")
+    parser.add_argument(
+        "--enable-optimization",
+        action="store_true",
+        help="Whether to enable optimization such as flash attention and fused layernorm",
+    )
+    return parser.parse_args()
+
+
+# ============================
+# Main Gradio Script
+# ============================
+# as `run_inference` needs to be wrapped by `spaces.GPU` and the input can only be the prompt text
+# so we can't pass the models to `run_inference` as arguments.
+# instead, we need to define them globally so that we can access these models inside `run_inference`
+
+# read config
+args = parse_args()
+config = read_config(CONFIG_MAP[args.model_type])
+
+# make outputs dir
+os.makedirs(args.output, exist_ok=True)
+
+# disable torch jit as it can cause failure in gradio SDK
+# gradio sdk uses torch with cuda 11.3
+torch.jit._state.disable()
+
+# set up
+install_dependencies(enable_optimization=args.enable_optimization)
+
+# import after installation
+from opensora.datasets import IMG_FPS, save_sample
+from opensora.utils.misc import to_torch_dtype
+
+# some global variables
+dtype = to_torch_dtype(config.dtype)
+device = torch.device("cuda")
+
+# build model
+vae, text_encoder, stdit, scheduler = build_models(args.model_type, config, enable_optimization=args.enable_optimization)
+
+
+@spaces.GPU(duration=200)
+def run_inference(mode, prompt_text, resolution, length, reference_image):
+    with torch.inference_mode():
+        # ======================
+        # 1. Preparation
+        # ======================
+        # parse the inputs
+        resolution = RESOLUTION_MAP[resolution]
+        
+        # compute number of loops
+        num_seconds = int(length.rstrip('s'))
+        total_number_of_frames = num_seconds * config.fps / config.frame_interval
+        num_loop = math.ceil(total_number_of_frames / config.num_frames)
+
+        # prepare model args
+        model_args = dict()
+        height = torch.tensor([resolution[0]], device=device, dtype=dtype)
+        width = torch.tensor([resolution[1]], device=device, dtype=dtype)
+        num_frames = torch.tensor([config.num_frames], device=device, dtype=dtype)
+        ar = torch.tensor([resolution[0] / resolution[1]], device=device, dtype=dtype)
+        if config.num_frames == 1:
+            config.fps = IMG_FPS
+        fps = torch.tensor([config.fps], device=device, dtype=dtype)
+        model_args["height"] = height
+        model_args["width"] = width
+        model_args["num_frames"] = num_frames
+        model_args["ar"] = ar
+        model_args["fps"] = fps
+
+        # compute latent size
+        input_size = (config.num_frames, *resolution)
+        latent_size = vae.get_latent_size(input_size)
+
+        # process prompt
+        prompt_raw = [prompt_text]
+        prompt_raw, _ = extract_json_from_prompts(prompt_raw)
+        prompt_loops = process_prompts(prompt_raw, num_loop)
+        video_clips = []
+
+        # prepare mask strategy
+        if mode == "Text2Video":
+            mask_strategy = [None]
+        elif mode == "Image2Video":
+            mask_strategy = ['0']
+        else:
+            raise ValueError(f"Invalid mode: {mode}")
+
+        # =========================
+        # 2. Load reference images
+        # =========================
+        if mode == "Text2Video":
+            refs_x = collect_references_batch([None], vae, resolution)
+        elif mode == "Image2Video":
+            # save image to disk
+            from PIL import Image
+            im = Image.fromarray(reference_image)
+            im.save("test.jpg")
+            refs_x = collect_references_batch(["test.jpg"], vae, resolution)
+        else:
+            raise ValueError(f"Invalid mode: {mode}")
+
+        # 4.3. long video generation
+        for loop_i in range(num_loop):
+            # 4.4 sample in hidden space
+            batch_prompts = [prompt[loop_i] for prompt in prompt_loops]
+            z = torch.randn(len(batch_prompts), vae.out_channels, *latent_size, device=device, dtype=dtype)
+
+            # 4.5. apply mask strategy
+            masks = None
+
+            # if cfg.reference_path is not None:
+            if loop_i > 0:
+                ref_x = vae.encode(video_clips[-1])
+                for j, refs in enumerate(refs_x):
+                    if refs is None:
+                        refs_x[j] = [ref_x[j]]
+                    else:
+                        refs.append(ref_x[j])
+                    if mask_strategy[j] is None:
+                        mask_strategy[j] = ""
+                    else:
+                        mask_strategy[j] += ";"
+                    mask_strategy[
+                        j
+                    ] += f"{loop_i},{len(refs)-1},-{config.condition_frame_length},0,{config.condition_frame_length}"
+
+            masks = apply_mask_strategy(z, refs_x, mask_strategy, loop_i)
+
+            # 4.6. diffusion sampling
+            samples = scheduler.sample(
+                stdit,
+                text_encoder,
+                z=z,
+                prompts=batch_prompts,
+                device=device,
+                additional_args=model_args,
+                mask=masks,  # scheduler must support mask
+            )
+            samples = vae.decode(samples.to(dtype))
+            video_clips.append(samples)
+
+            # 4.7. save video
+            if loop_i == num_loop - 1:
+                video_clips_list = [
+                    video_clips[0][0]] + [video_clips[i][0][:, config.condition_frame_length :] 
+                    for i in range(1, num_loop)
+                ]
+                video = torch.cat(video_clips_list, dim=1)
+                save_path = f"{args.output}/sample"
+                saved_path = save_sample(video, fps=config.fps // config.frame_interval, save_path=save_path, force_video=True)
+                return saved_path
+
+
+def main():
+    # create demo
+    with gr.Blocks() as demo:
+        with gr.Row():
+            with gr.Column():
+                gr.HTML(
+                    """
+                <div style='text-align: center;'>
+                    <p align="center">
+                        <img src="https://github.com/hpcaitech/Open-Sora/raw/main/assets/readme/icon.png" width="250"/>
+                    </p>
+                    <div style="display: flex; gap: 10px; justify-content: center;">
+                        <a href="https://github.com/hpcaitech/Open-Sora/stargazers"><img src="https://img.shields.io/github/stars/hpcaitech/Open-Sora?style=social"></a>
+                        <a href="https://hpcaitech.github.io/Open-Sora/"><img src="https://img.shields.io/badge/Gallery-View-orange?logo=&amp"></a>
+                        <a href="https://discord.gg/kZakZzrSUT"><img src="https://img.shields.io/badge/Discord-join-blueviolet?logo=discord&amp"></a>
+                        <a href="https://join.slack.com/t/colossalaiworkspace/shared_invite/zt-247ipg9fk-KRRYmUl~u2ll2637WRURVA"><img src="https://img.shields.io/badge/Slack-ColossalAI-blueviolet?logo=slack&amp"></a>
+                        <a href="https://twitter.com/yangyou1991/status/1769411544083996787?s=61&t=jT0Dsx2d-MS5vS9rNM5e5g"><img src="https://img.shields.io/badge/Twitter-Discuss-blue?logo=twitter&amp"></a>
+                        <a href="https://raw.githubusercontent.com/hpcaitech/public_assets/main/colossalai/img/WeChat.png"><img src="https://img.shields.io/badge/微信-小助手加群-green?logo=wechat&amp"></a>
+                        <a href="https://hpc-ai.com/blog/open-sora-v1.0"><img src="https://img.shields.io/badge/Open_Sora-Blog-blue"></a>
+                    </div>
+                    <h1 style='margin-top: 5px;'>Open-Sora: Democratizing Efficient Video Production for All</h1>
+                </div>
+                """
+                )
+
+        with gr.Row():
+            with gr.Column():
+                mode = gr.Radio(
+                    choices=["Text2Video", "Image2Video"], 
+                    value="Text2Video",
+                    label="Usage", 
+                    info="Choose your usage scenario",
+                )
+                prompt_text = gr.Textbox(
+                    label="Prompt",
+                    placeholder="Describe your video here",
+                    lines=4,
+                )
+                resolution = gr.Radio(
+                     choices=["144p", "240p", "360p", "480p", "720p", "1080p"],
+                     value="144p",
+                    label="Resolution", 
+                )
+                length = gr.Radio(
+                    choices=["2s", "4s", "8s"], 
+                    value="2s",
+                    label="Video Length", 
+                    info="8s may fail as Hugging Face ZeroGPU has the limitation of max 200 seconds inference time."
+                )
+
+                reference_image = gr.Image(
+                    label="Reference Image (only used for Image2Video)",
+                )
+            
+            with gr.Column():
+                output_video = gr.Video(
+                    label="Output Video",
+                    height="100%"
+                )
+
+        with gr.Row():
+             submit_button = gr.Button("Generate video")
+        
+
+        submit_button.click(
+             fn=run_inference, 
+             inputs=[mode, prompt_text, resolution, length, reference_image], 
+             outputs=output_video
+             )
+
+    # launch
+    demo.launch(server_port=args.port, server_name=args.host, share=args.share)
+
+
+if __name__ == "__main__":
+    main()

requirements.txt

@@ -0,0 +1,4 @@
+xformers
+transformers
+pandarallel
+git+https://github.com/hpcaitech/Open-Sora.git#egg=opensora