add frame interpolation function

app.py

@@ -1,9 +1,348 @@
 import gradio as gr
+import os
+import shutil
+import ffmpeg
+from datetime import datetime
+from pathlib import Path
+import numpy as np
+import cv2
+import torch
+import spaces
 
-from src.audio2vid import audio2video
-from src.vid2vid import video2video
+from diffusers import AutoencoderKL, DDIMScheduler
+from einops import repeat
+from omegaconf import OmegaConf
+from PIL import Image
+from torchvision import transforms
+from transformers import CLIPVisionModelWithProjection
 
-# from src.create_modules import Processer
+from src.models.pose_guider import PoseGuider
+from src.models.unet_2d_condition import UNet2DConditionModel
+from src.models.unet_3d import UNet3DConditionModel
+from src.pipelines.pipeline_pose2vid_long import Pose2VideoPipeline
+from src.utils.util import get_fps, read_frames, save_videos_grid, save_pil_imgs
+
+from src.audio_models.model import Audio2MeshModel
+from src.utils.audio_util import prepare_audio_feature
+from src.utils.mp_utils  import LMKExtractor
+from src.utils.draw_util import FaceMeshVisualizer
+from src.utils.pose_util import project_points, project_points_with_trans, matrix_to_euler_and_translation, euler_and_translation_to_matrix
+from src.utils.crop_face_single import crop_face
+from src.audio2vid import get_headpose_temp, smooth_pose_seq
+from src.utils.frame_interpolation import init_frame_interpolation_model, batch_images_interpolation_tool
+
+
+config = OmegaConf.load('./configs/prompts/animation_audio.yaml')
+if config.weight_dtype == "fp16":
+    weight_dtype = torch.float16
+else:
+    weight_dtype = torch.float32
+    
+audio_infer_config = OmegaConf.load(config.audio_inference_config)
+# prepare model
+a2m_model = Audio2MeshModel(audio_infer_config['a2m_model'])
+a2m_model.load_state_dict(torch.load(audio_infer_config['pretrained_model']['a2m_ckpt'], map_location="cpu"), strict=False)
+a2m_model.cuda().eval()
+
+vae = AutoencoderKL.from_pretrained(
+    config.pretrained_vae_path,
+).to("cuda", dtype=weight_dtype)
+
+reference_unet = UNet2DConditionModel.from_pretrained(
+    config.pretrained_base_model_path,
+    subfolder="unet",
+).to(dtype=weight_dtype, device="cuda")
+
+inference_config_path = config.inference_config
+infer_config = OmegaConf.load(inference_config_path)
+denoising_unet = UNet3DConditionModel.from_pretrained_2d(
+    config.pretrained_base_model_path,
+    config.motion_module_path,
+    subfolder="unet",
+    unet_additional_kwargs=infer_config.unet_additional_kwargs,
+).to(dtype=weight_dtype, device="cuda")
+
+pose_guider = PoseGuider(noise_latent_channels=320, use_ca=True).to(device="cuda", dtype=weight_dtype) # not use cross attention
+
+image_enc = CLIPVisionModelWithProjection.from_pretrained(
+    config.image_encoder_path
+).to(dtype=weight_dtype, device="cuda")
+
+sched_kwargs = OmegaConf.to_container(infer_config.noise_scheduler_kwargs)
+scheduler = DDIMScheduler(**sched_kwargs)
+
+# load pretrained weights
+denoising_unet.load_state_dict(
+    torch.load(config.denoising_unet_path, map_location="cpu"),
+    strict=False,
+)
+reference_unet.load_state_dict(
+    torch.load(config.reference_unet_path, map_location="cpu"),
+)
+pose_guider.load_state_dict(
+    torch.load(config.pose_guider_path, map_location="cpu"),
+)
+
+pipe = Pose2VideoPipeline(
+    vae=vae,
+    image_encoder=image_enc,
+    reference_unet=reference_unet,
+    denoising_unet=denoising_unet,
+    pose_guider=pose_guider,
+    scheduler=scheduler,
+)
+pipe = pipe.to("cuda", dtype=weight_dtype)
+
+lmk_extractor = LMKExtractor()
+vis = FaceMeshVisualizer()
+
+frame_inter_model = init_frame_interpolation_model()
+
+@spaces.GPU(duration=200)
+def audio2video(input_audio, ref_img, headpose_video=None, size=512, steps=25, length=150, seed=42):
+    fps = 30
+    cfg = 3.5
+
+    generator = torch.manual_seed(seed)
+
+    width, height = size, size    
+
+    date_str = datetime.now().strftime("%Y%m%d")
+    time_str = datetime.now().strftime("%H%M")
+    save_dir_name = f"{time_str}--seed_{seed}-{size}x{size}"
+
+    save_dir = Path(f"output/{date_str}/{save_dir_name}")
+    save_dir.mkdir(exist_ok=True, parents=True)
+
+    ref_image_np = cv2.cvtColor(ref_img, cv2.COLOR_RGB2BGR)
+    ref_image_np = crop_face(ref_image_np, lmk_extractor)
+    if ref_image_np is None:
+        return None, Image.fromarray(ref_img)
+    
+    ref_image_np = cv2.resize(ref_image_np, (size, size))
+    ref_image_pil = Image.fromarray(cv2.cvtColor(ref_image_np, cv2.COLOR_BGR2RGB))
+    
+    face_result = lmk_extractor(ref_image_np)
+    if face_result is None: 
+        return None, ref_image_pil
+    
+    lmks = face_result['lmks'].astype(np.float32)
+    ref_pose = vis.draw_landmarks((ref_image_np.shape[1], ref_image_np.shape[0]), lmks, normed=True)
+    
+    sample = prepare_audio_feature(input_audio, wav2vec_model_path=audio_infer_config['a2m_model']['model_path'])
+    sample['audio_feature'] = torch.from_numpy(sample['audio_feature']).float().cuda()
+    sample['audio_feature'] = sample['audio_feature'].unsqueeze(0)
+
+    # inference
+    pred = a2m_model.infer(sample['audio_feature'], sample['seq_len'])
+    pred = pred.squeeze().detach().cpu().numpy()
+    pred = pred.reshape(pred.shape[0], -1, 3)
+    pred = pred + face_result['lmks3d']
+    
+    if headpose_video is not None:
+        pose_seq = get_headpose_temp(headpose_video)
+    else:
+        pose_seq = np.load(config['pose_temp'])
+    mirrored_pose_seq = np.concatenate((pose_seq, pose_seq[-2:0:-1]), axis=0)
+    cycled_pose_seq = np.tile(mirrored_pose_seq, (sample['seq_len'] // len(mirrored_pose_seq) + 1, 1))[:sample['seq_len']]
+
+    # project 3D mesh to 2D landmark
+    projected_vertices = project_points(pred, face_result['trans_mat'], cycled_pose_seq, [height, width])
+
+    pose_images = []
+    for i, verts in enumerate(projected_vertices):
+        lmk_img = vis.draw_landmarks((width, height), verts, normed=False)
+        pose_images.append(lmk_img)
+
+    pose_list = []
+    # pose_tensor_list = []
+
+    # pose_transform = transforms.Compose(
+    #     [transforms.Resize((height, width)), transforms.ToTensor()]
+    # )
+    args_L = len(pose_images) if length==0 or length > len(pose_images) else length
+    args_L = min(args_L, 180)
+    for pose_image_np in pose_images[: args_L : 2]:
+        # pose_image_pil = Image.fromarray(cv2.cvtColor(pose_image_np, cv2.COLOR_BGR2RGB))
+        # pose_tensor_list.append(pose_transform(pose_image_pil))
+        pose_image_np = cv2.resize(pose_image_np,  (width, height))
+        pose_list.append(pose_image_np)
+    
+    pose_list = np.array(pose_list)
+    
+    video_length = len(pose_list)
+
+    video = pipe(
+        ref_image_pil,
+        pose_list,
+        ref_pose,
+        width,
+        height,
+        video_length,
+        steps,
+        cfg,
+        generator=generator,
+    ).videos
+
+    # save_path = f"{save_dir}/{size}x{size}_{time_str}_noaudio.mp4"
+    # save_videos_grid(
+    #     video,
+    #     save_path,
+    #     n_rows=1,
+    #     fps=fps,
+    # )
+    
+    save_path = f"{save_dir}/{size}x{size}_{time_str}_noaudio"
+    save_pil_imgs(video, save_path)
+    
+    save_path = batch_images_interpolation_tool(save_path, frame_inter_model, fps)
+    
+    stream = ffmpeg.input(save_path)
+    audio = ffmpeg.input(input_audio)
+    ffmpeg.output(stream.video, audio.audio, save_path.replace('_noaudio.mp4', '.mp4'), vcodec='copy', acodec='aac', shortest=None).run()
+    os.remove(save_path)
+    
+    return save_path.replace('_noaudio.mp4', '.mp4'), ref_image_pil
+
+@spaces.GPU(duration=200)
+def video2video(ref_img, source_video, size=512, steps=25, length=150, seed=42):
+    cfg = 3.5
+    
+    generator = torch.manual_seed(seed)
+
+    width, height = size, size
+
+    date_str = datetime.now().strftime("%Y%m%d")
+    time_str = datetime.now().strftime("%H%M")
+    save_dir_name = f"{time_str}--seed_{seed}-{size}x{size}"
+
+    save_dir = Path(f"output/{date_str}/{save_dir_name}")
+    save_dir.mkdir(exist_ok=True, parents=True)
+    
+    ref_image_np = cv2.cvtColor(ref_img, cv2.COLOR_RGB2BGR)
+    ref_image_np = crop_face(ref_image_np, lmk_extractor)
+    if ref_image_np is None:
+        return None, Image.fromarray(ref_img)
+    
+    ref_image_np = cv2.resize(ref_image_np, (size, size))
+    ref_image_pil = Image.fromarray(cv2.cvtColor(ref_image_np, cv2.COLOR_BGR2RGB))
+    
+    face_result = lmk_extractor(ref_image_np)
+    if face_result is None: 
+        return None, ref_image_pil
+    
+    lmks = face_result['lmks'].astype(np.float32)
+    ref_pose = vis.draw_landmarks((ref_image_np.shape[1], ref_image_np.shape[0]), lmks, normed=True)
+
+    source_images = read_frames(source_video)
+    src_fps = get_fps(source_video)
+    pose_transform = transforms.Compose(
+        [transforms.Resize((height, width)), transforms.ToTensor()]
+    )
+    
+    step = 1
+    if src_fps == 60:
+        src_fps = 30
+        step = 2
+    
+    pose_trans_list = []
+    verts_list = []
+    bs_list = []
+    src_tensor_list = []
+    args_L = len(source_images) if length==0 or length*step > len(source_images) else length*step
+    args_L = min(args_L, 180*step)
+    for src_image_pil in source_images[: args_L : step*2]:
+        src_tensor_list.append(pose_transform(src_image_pil))
+        src_img_np = cv2.cvtColor(np.array(src_image_pil), cv2.COLOR_RGB2BGR)
+        frame_height, frame_width, _ = src_img_np.shape
+        src_img_result = lmk_extractor(src_img_np)
+        if src_img_result is None:
+            break
+        pose_trans_list.append(src_img_result['trans_mat'])
+        verts_list.append(src_img_result['lmks3d'])
+        bs_list.append(src_img_result['bs'])
+
+    trans_mat_arr = np.array(pose_trans_list)
+    verts_arr = np.array(verts_list)
+    bs_arr = np.array(bs_list)
+    min_bs_idx = np.argmin(bs_arr.sum(1))
+    
+    # compute delta pose
+    pose_arr = np.zeros([trans_mat_arr.shape[0], 6])
+
+    for i in range(pose_arr.shape[0]):
+        euler_angles, translation_vector = matrix_to_euler_and_translation(trans_mat_arr[i]) # real pose of source
+        pose_arr[i, :3] =  euler_angles
+        pose_arr[i, 3:6] =  translation_vector
+    
+    init_tran_vec = face_result['trans_mat'][:3, 3] # init translation of tgt
+    pose_arr[:, 3:6] = pose_arr[:, 3:6] - pose_arr[0, 3:6] + init_tran_vec # (relative translation of source) + (init translation of tgt)
+
+    pose_arr_smooth = smooth_pose_seq(pose_arr, window_size=3)
+    pose_mat_smooth = [euler_and_translation_to_matrix(pose_arr_smooth[i][:3], pose_arr_smooth[i][3:6]) for i in range(pose_arr_smooth.shape[0])]    
+    pose_mat_smooth = np.array(pose_mat_smooth)   
+
+    # face retarget
+    verts_arr = verts_arr - verts_arr[min_bs_idx] + face_result['lmks3d']
+    # project 3D mesh to 2D landmark
+    projected_vertices = project_points_with_trans(verts_arr, pose_mat_smooth, [frame_height, frame_width])
+    
+    pose_list = []
+    for i, verts in enumerate(projected_vertices):
+        lmk_img = vis.draw_landmarks((frame_width, frame_height), verts, normed=False)
+        pose_image_np = cv2.resize(lmk_img,  (width, height))
+        pose_list.append(pose_image_np)
+    
+    pose_list = np.array(pose_list)
+    
+    video_length = len(pose_list)
+
+    video = pipe(
+        ref_image_pil,
+        pose_list,
+        ref_pose,
+        width,
+        height,
+        video_length,
+        steps,
+        cfg,
+        generator=generator,
+    ).videos
+
+    # save_path = f"{save_dir}/{size}x{size}_{time_str}_noaudio.mp4"
+    # save_videos_grid(
+    #     video,
+    #     save_path,
+    #     n_rows=1,
+    #     fps=src_fps,
+    # )
+    
+    save_path = f"{save_dir}/{size}x{size}_{time_str}_noaudio"
+    save_pil_imgs(video, save_path)
+    
+    save_path = batch_images_interpolation_tool(save_path, frame_inter_model, src_fps)
+    
+    audio_output = f'{save_dir}/audio_from_video.aac'
+    # extract audio
+    try:
+        ffmpeg.input(source_video).output(audio_output, acodec='copy').run()
+        # merge audio and video
+        stream = ffmpeg.input(save_path)
+        audio = ffmpeg.input(audio_output)
+        ffmpeg.output(stream.video, audio.audio, save_path.replace('_noaudio.mp4', '.mp4'), vcodec='copy', acodec='aac', shortest=None).run()
+    
+        os.remove(save_path)
+        os.remove(audio_output)
+    except:
+        shutil.move(
+            save_path,
+            save_path.replace('_noaudio.mp4', '.mp4')
+        )
+    
+    return save_path.replace('_noaudio.mp4', '.mp4'), ref_image_pil
+
+
+################# GUI ################
 
 title = r"""
 <h1>AniPortrait</h1>
@@ -13,8 +352,6 @@ description = r"""
 <b>Official 🤗 Gradio demo</b> for <a href='https://github.com/Zejun-Yang/AniPortrait' target='_blank'><b>AniPortrait: Audio-Driven Synthesis of Photorealistic Portrait Animations</b></a>.<br>
 """
 
-# main_processer = Processer()
-
 with gr.Blocks() as demo:
     
     gr.Markdown(title)
@@ -33,7 +370,7 @@ with gr.Blocks() as demo:
                     a2v_step_slider = gr.Slider(minimum=5, maximum=50, step=1, value=20, label="Steps (--steps)")
                 
                 with gr.Row():
-                    a2v_length = gr.Slider(minimum=0, maximum=300, step=1, value=150, label="Length (-L) (Set 0 to automatically calculate video length.)")
+                    a2v_length = gr.Slider(minimum=0, maximum=180, step=1, value=60, label="Length (-L) (Set 0 to automatically calculate video length.)")
                     a2v_seed = gr.Number(value=42, label="Seed (--seed)")
                 
                 a2v_botton = gr.Button("Generate", variant="primary")
@@ -61,7 +398,7 @@ with gr.Blocks() as demo:
                     v2v_step_slider = gr.Slider(minimum=5, maximum=50, step=1, value=20, label="Steps (--steps)")
                 
                 with gr.Row():
-                    v2v_length = gr.Slider(minimum=0, maximum=300, step=1, value=150, label="Length (-L) (Set 0 to automatically calculate video length.)")
+                    v2v_length = gr.Slider(minimum=0, maximum=180, step=1, value=60, label="Length (-L) (Set 0 to automatically calculate video length.)")
                     v2v_seed = gr.Number(value=42, label="Seed (--seed)")
                 
                 v2v_botton = gr.Button("Generate", variant="primary")