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import gradio as gr
from loadimg import load_img
import spaces
from transformers import AutoModelForImageSegmentation
import torch
from torchvision import transforms
import moviepy.editor as mp
from pydub import AudioSegment
from PIL import Image
import numpy as np
import os
import tempfile
import uuid
torch.set_float32_matmul_precision(["high", "highest"][0])
birefnet = AutoModelForImageSegmentation.from_pretrained(
"ZhengPeng7/BiRefNet", trust_remote_code=True
)
birefnet.to("cuda")
transform_image = transforms.Compose(
[
transforms.Resize((1024, 1024)),
transforms.ToTensor(),
transforms.Normalize([0.485, 0.456, 0.406], [0.229, 0.224, 0.225]),
]
)
BATCH_SIZE = 3
@spaces.GPU
def fn(vid, bg_type="Color", bg_image=None, bg_video=None, color="#00FF00", fps=0, video_handling="slow_down"):
try:
video = mp.VideoFileClip(vid)
if fps == 0:
fps = video.fps
audio = video.audio
frames = video.iter_frames(fps=fps)
processed_frames = []
yield gr.update(visible=True), gr.update(visible=False)
if bg_type == "Video":
background_video = mp.VideoFileClip(bg_video)
if background_video.duration < video.duration:
if video_handling == "slow_down":
background_video = background_video.fx(mp.vfx.speedx, factor=video.duration / background_video.duration)
else:
background_video = mp.concatenate_videoclips([background_video] * int(video.duration / background_video.duration + 1))
background_frames = list(background_video.iter_frames(fps=fps))
else:
background_frames = None
bg_frame_index = 0
frame_batch = []
for i, frame in enumerate(frames):
frame_batch.append(frame)
if len(frame_batch) == BATCH_SIZE or i == video.fps * video.duration -1: # Process batch or last frames
pil_images = [Image.fromarray(f) for f in frame_batch]
if bg_type == "Color":
processed_images = [process(img, color) for img in pil_images]
elif bg_type == "Image":
processed_images = [process(img, bg_image) for img in pil_images]
elif bg_type == "Video":
processed_images = []
for _ in range(len(frame_batch)):
if video_handling == "slow_down":
background_frame = background_frames[bg_frame_index % len(background_frames)]
bg_frame_index += 1
background_image = Image.fromarray(background_frame)
else: # video_handling == "loop"
background_frame = background_frames[bg_frame_index % len(background_frames)]
bg_frame_index += 1
background_image = Image.fromarray(background_frame)
processed_images.append(process(pil_images[_],background_image))
else:
processed_images = pil_images
for processed_image in processed_images:
processed_frames.append(np.array(processed_image))
yield processed_image, None
frame_batch = [] # Clear the batch
processed_video = mp.ImageSequenceClip(processed_frames, fps=fps)
processed_video = processed_video.set_audio(audio)
temp_dir = "temp"
os.makedirs(temp_dir, exist_ok=True)
unique_filename = str(uuid.uuid4()) + ".mp4"
temp_filepath = os.path.join(temp_dir, unique_filename)
processed_video.write_videofile(temp_filepath, codec="libx264", logger=None)
yield gr.update(visible=False), gr.update(visible=True)
yield processed_image, temp_filepath
except Exception as e:
print(f"Error: {e}")
yield gr.update(visible=False), gr.update(visible=True)
yield None, f"Error processing video: {e}"
def process(image, bg):
image_size = image.size
input_images = transform_image(image).unsqueeze(0).to("cuda")
# Prediction
with torch.no_grad():
preds = birefnet(input_images)[-1].sigmoid().cpu()
pred = preds[0].squeeze()
pred_pil = transforms.ToPILImage()(pred)
mask = pred_pil.resize(image_size)
if isinstance(bg, str) and bg.startswith("#"):
color_rgb = tuple(int(bg[i:i+2], 16) for i in (1, 3, 5))
background = Image.new("RGBA", image_size, color_rgb + (255,))
elif isinstance(bg, Image.Image):
background = bg.convert("RGBA").resize(image_size)
else:
background = Image.open(bg).convert("RGBA").resize(image_size)
# Composite the image onto the background using the mask
image = Image.composite(image, background, mask)
return image
with gr.Blocks(theme=gr.themes.Ocean()) as demo:
with gr.Row():
in_video = gr.Video(label="Input Video", interactive=True)
stream_image = gr.Image(label="Streaming Output", visible=False)
out_video = gr.Video(label="Final Output Video")
submit_button = gr.Button("Change Background", interactive=True)
with gr.Row():
fps_slider = gr.Slider(
minimum=0,
maximum=60,
step=1,
value=0,
label="Output FPS (0 will inherit the original fps value)",
interactive=True
)
bg_type = gr.Radio(["Color", "Image", "Video"], label="Background Type", value="Color", interactive=True)
color_picker = gr.ColorPicker(label="Background Color", value="#00FF00", visible=True, interactive=True)
bg_image = gr.Image(label="Background Image", type="filepath", visible=False, interactive=True)
bg_video = gr.Video(label="Background Video", visible=False, interactive=True)
with gr.Column(visible=False) as video_handling_options:
video_handling_radio = gr.Radio(["slow_down", "loop"], label="Video Handling", value="slow_down", interactive=True)
def update_visibility(bg_type):
if bg_type == "Color":
return gr.update(visible=True), gr.update(visible=False), gr.update(visible=False), gr.update(visible=False)
elif bg_type == "Image":
return gr.update(visible=False), gr.update(visible=True), gr.update(visible=False), gr.update(visible=False)
elif bg_type == "Video":
return gr.update(visible=False), gr.update(visible=False), gr.update(visible=True), gr.update(visible=True)
else:
return gr.update(visible=False), gr.update(visible=False), gr.update(visible=False), gr.update(visible=False)
bg_type.change(update_visibility, inputs=bg_type, outputs=[color_picker, bg_image, bg_video, video_handling_options])
examples = gr.Examples(
[
["rickroll-2sec.mp4", "Video", None, "background.mp4"],
["rickroll-2sec.mp4", "Image", "images.webp", None],
["rickroll-2sec.mp4", "Color", None, None],
],
inputs=[in_video, bg_type, bg_image, bg_video],
outputs=[stream_image, out_video],
fn=fn,
cache_examples=True,
cache_mode="eager",
)
submit_button.click(
fn,
inputs=[in_video, bg_type, bg_image, bg_video, color_picker, fps_slider, video_handling_radio],
outputs=[stream_image, out_video],
)
if __name__ == "__main__":
demo.launch(show_error=True)