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 import time import threading from concurrent.futures import ThreadPoolExecutor torch.set_float32_matmul_precision("medium") device = "cuda" if torch.cuda.is_available() else "cpu" # Load both BiRefNet models birefnet = AutoModelForImageSegmentation.from_pretrained( "ZhengPeng7/BiRefNet", trust_remote_code=True) birefnet.to(device) birefnet_lite = AutoModelForImageSegmentation.from_pretrained( "ZhengPeng7/BiRefNet_lite", trust_remote_code=True) birefnet_lite.to(device) transform_image = transforms.Compose( [ transforms.Resize((1024, 1024)), transforms.ToTensor(), transforms.Normalize([0.485, 0.456, 0.406], [0.229, 0.224, 0.225]), ] ) # Function to process a single frame def process_frame(frame, bg_type, bg, fast_mode, bg_frame_index, background_frames, color): try: pil_image = Image.fromarray(frame) if bg_type == "Color": processed_image = process(pil_image, color, fast_mode) elif bg_type == "Image": processed_image = process(pil_image, bg, fast_mode) elif bg_type == "Video": background_frame = background_frames[bg_frame_index % len(background_frames)] bg_frame_index += 1 background_image = Image.fromarray(background_frame) processed_image = process(pil_image, background_image, fast_mode) else: processed_image = pil_image # Default to original image if no background is selected return np.array(processed_image), bg_frame_index except Exception as e: print(f"Error processing frame: {e}") return frame, bg_frame_index @spaces.GPU def fn(vid, bg_type="Color", bg_image=None, bg_video=None, color="#00FF00", fps=0, video_handling="slow_down", fast_mode=True, max_workers=6): try: start_time = time.time() # Start the timer # Load the video using moviepy video = mp.VideoFileClip(vid) # Load original fps if fps value is equal to 0 if fps == 0: fps = video.fps # Extract audio from the video audio = video.audio # Extract frames at the specified FPS frames = list(video.iter_frames(fps=fps)) # Process each frame for background removal processed_frames = [] yield gr.update(visible=True), gr.update(visible=False), f"Processing started... Elapsed time: 0 seconds" 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: # video_handling == "loop" background_video = mp.concatenate_videoclips([background_video] * int(video.duration / background_video.duration + 1)) background_frames = list(background_video.iter_frames(fps=fps)) # Convert to list else: background_frames = None bg_frame_index = 0 # Initialize background frame index # Use ThreadPoolExecutor for parallel processing with specified max_workers with ThreadPoolExecutor(max_workers=max_workers) as executor: futures = [executor.submit(process_frame, frames[i], bg_type, bg_image, fast_mode, bg_frame_index, background_frames, color) for i in range(len(frames))] for future in futures: result, bg_frame_index = future.result() processed_frames.append(result) elapsed_time = time.time() - start_time yield result, None, f"Processing frame {len(processed_frames)}... Elapsed time: {elapsed_time:.2f} seconds" # Create a new video from the processed frames processed_video = mp.ImageSequenceClip(processed_frames, fps=fps) # Add the original audio back to the processed video processed_video = processed_video.set_audio(audio) # Save the processed video to a temporary file using tempfile with tempfile.NamedTemporaryFile(suffix=".mp4", delete=False) as temp_file: temp_filepath = temp_file.name processed_video.write_videofile(temp_filepath, codec="libx264") elapsed_time = time.time() - start_time yield gr.update(visible=False), gr.update(visible=True), f"Processing complete! Elapsed time: {elapsed_time:.2f} seconds" # Return the path to the temporary file yield processed_frames[-1], temp_filepath, f"Processing complete! Elapsed time: {elapsed_time:.2f} seconds" except Exception as e: print(f"Error: {e}") elapsed_time = time.time() - start_time yield gr.update(visible=False), gr.update(visible=True), f"Error processing video: {e}. Elapsed time: {elapsed_time:.2f} seconds" yield None, f"Error processing video: {e}", f"Error processing video: {e}. Elapsed time: {elapsed_time:.2f} seconds" def process(image, bg, fast_mode=False): image_size = image.size input_images = transform_image(image).unsqueeze(0).to("cuda") # Select the model based on fast_mode model = birefnet_lite if fast_mode else birefnet # Prediction with torch.no_grad(): preds = model(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: gr.Markdown("# Video Background Remover & Changer\n### You can replace image background with any color, image or video.\nNOTE: As this Space is running on ZERO GPU it has limit. It can handle approx 200 frames at once. So, if you have a big video than use small chunks or Duplicate this space.") 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) fast_mode_checkbox = gr.Checkbox(label="Fast Mode (Use BiRefNet_lite)", value=True, interactive=True) max_workers_slider = gr.Slider( minimum=1, maximum=32, step=1, value=6, label="Max Workers", info="Determines how many Franes to process parallel", interactive=True ) time_textbox = gr.Textbox(label="Time Elapsed", interactive=False) # Add time textbox 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, time_textbox], 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, fast_mode_checkbox, max_workers_slider], outputs=[stream_image, out_video, time_textbox], ) if __name__ == "__main__": demo.launch(show_error=True)