ai-video-editor / app.py
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import gradio as gr
from moviepy.editor import VideoFileClip, TextClip, CompositeVideoClip, clips_array
from moviepy.video.fx.all import speedx, rotate, lum_contrast
import numpy as np
def adjust_brightness(clip, brightness_factor):
"""Adjusts the brightness of a video clip."""
return clip.fl_image(lambda image: np.clip(image * brightness_factor, 0, 255).astype(np.uint8))
def adjust_saturation(clip, saturation_factor):
"""Adjust saturation of the video clip."""
def fl_image(image):
# Convert to HSV and scale the saturation channel
hsv = colorsys.rgb_to_hsv(*np.array(image) / 255.0)
hsv[:, :, 1] *= saturation_factor
hsv[:, :, 1] = np.clip(hsv[:, :, 1], 0, 1)
return (np.array(colorsys.hsv_to_rgb(*hsv)) * 255).astype(np.uint8)
return clip.fl_image(fl_image)
def video_editor(input_video, start_time, end_time, playback_speed, create_gif,
rotation_degrees, watermark_text, brightness_factor, contrast, saturation):
# Load and sub-clip video
clip = VideoFileClip(input_video).subclip(start_time, end_time)
# Change playback speed
if playback_speed != 1:
clip = speedx(clip, factor=playback_speed)
# Rotate the video
if rotation_degrees != 0:
clip = rotate(clip, rotation_degrees)
# Adjust brightness
if brightness_factor != 1:
clip = adjust_brightness(clip, brightness_factor)
# Adjust contrast
if contrast != 1:
clip = lum_contrast(clip, contrast=contrast)
# Adjust saturation
if saturation != 1:
clip = adjust_saturation(clip, saturation)
# Add text watermark
if watermark_text:
txt_clip = TextClip(watermark_text, fontsize=24, color='white', bg_color='black')
txt_clip = txt_clip.set_position(('right', 'bottom')).set_duration(clip.duration)
clip = CompositeVideoClip([clip, txt_clip])
# Output paths
output_video_path = "edited_video.mp4"
output_gif_path = "edited_video.gif"
# Write file
if not create_gif:
clip.write_videofile(output_video_path, codec="libx264", audio_codec="aac")
return output_video_path
else:
clip.write_gif(output_gif_path)
return output_gif_path
# Gradio interface setup
iface = gr.Interface(
fn=video_editor,
inputs=[
gr.inputs.Video(label="Input Video"),
gr.inputs.Textbox(default="00:00:00", label="Start Time (HH:MM:SS)"),
gr.inputs.Textbox(default="00:00:10", label="End Time (HH:MM:SS)"),
gr.inputs.Slider(minimum=0.25, maximum=4.0, step=0.25, default=1, label="Playback Speed"),
gr.inputs.Checkbox(default=False, label="Create GIF instead of a video"),
gr.inputs.Slider(minimum=0, maximum=360, step=90, default=0, label="Rotation (Degrees)"),
gr.inputs.Textbox(default="", label="Watermark Text"),
gr.inputs.Slider(minimum=0.5, maximum=3.0, step=0.1, default=1, label="Brightness Factor"),
gr.inputs.Slider(minimum=0.1, maximum=2.0, step=0.1, default=1, label="Contrast"),
gr.inputs.Slider(minimum=0, maximum=2.0, step=0.1, default=1, label="Saturation")
],
outputs=gr.outputs.Video(label="Output Video/GIF"),
)
# Launch the application
iface.launch()