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import time
from pathlib import Path
import cv2
import gradio as gr
from PIL import Image
from .omni_processor import OmniVideoProcessor
class OmniConverterUI:
def __init__(self):
self.processor = OmniVideoProcessor()
self.default_params = self.processor.params.copy()
self.max_gallery_items = 20
def create_interface(self):
"""Create Gradio interface"""
with gr.Blocks(title="Omnidirectional Video to Pinhole Converter") as demo:
gr.Markdown("## Omnidirectional Video to Pinhole Converter")
with gr.Row():
with gr.Column():
# Video input
video_input = gr.File(label="Upload Video", type="filepath")
# Submit button
submit_btn = gr.Button("Convert", variant="primary")
# Frame extraction settings
with gr.Accordion("Frame Extraction", open=True):
frame_interval = gr.Slider(
1,
100,
value=self.default_params["frame_interval"],
label="Frame Interval",
interactive=True,
)
# Pinhole camera settings
with gr.Accordion("Pinhole Parameters", open=True):
with gr.Row():
image_width = gr.Slider(
100,
2000,
value=self.default_params["width"],
label="Image Width",
interactive=True,
)
image_height = gr.Slider(
100,
2000,
value=self.default_params["height"],
label="Image Height",
interactive=True,
)
with gr.Row():
cx = gr.Slider(
50,
1000,
value=self.default_params["cx"],
label="Principal Point X",
interactive=True,
)
cy = gr.Slider(
50,
1000,
value=self.default_params["cy"],
label="Principal Point Y",
interactive=True,
)
with gr.Row():
fov_h = gr.Slider(
30,
180,
value=self.default_params["fov_h"],
label="Horizontal FOV (deg)",
interactive=True,
)
fov_v = gr.Slider(
30,
180,
value=self.default_params["fov_v"],
label="Vertical FOV (deg)",
interactive=True,
)
with gr.Row():
fx = gr.Slider(
50,
1000,
value=self.default_params["fx"],
label="Focal Length X",
interactive=True,
)
fy = gr.Slider(
50,
1000,
value=self.default_params["fy"],
label="Focal Length Y",
interactive=True,
)
# View selection
with gr.Accordion("Custom View editions", open=False):
with gr.Row():
custom_pitch = gr.Slider(-90, 90, value=0, label="Custom Pitch")
custom_yaw = gr.Slider(-180, 180, value=0, label="Custom Yaw")
add_custom = gr.Button("Add Custom View")
with gr.Column():
# Results display
output_gallery = gr.Gallery(
label="Generated Pinhole Images",
columns=len(self.default_params["views"]), # Use initial value
object_fit="contain",
height="auto",
)
view_state_display = gr.JSON(
label="Current Views",
value=self.default_params["views"].copy(),
)
# Initialize views state
views_state = gr.State(self.default_params["views"].copy())
# Event handlers
add_custom.click(
fn=self._update_views,
inputs=[custom_pitch, custom_yaw, views_state],
outputs=[views_state, view_state_display],
)
submit_btn.click(
fn=self._run_conversion,
inputs=[
video_input,
frame_interval,
fx,
fy,
cx,
cy,
image_width,
image_height,
fov_h,
fov_v,
views_state,
],
outputs=output_gallery,
)
return demo
def _update_views(self, pitch, yaw, current_views):
"""Update views state with new custom view"""
new_views = {**current_views, f"pitch_{pitch}_yaw_{yaw}": (pitch, yaw)}
return new_views, new_views
def _run_conversion(self, video_file, *params):
"""Run conversion with progress tracking"""
param_names = [
"frame_interval",
"fx",
"fy",
"cx",
"cy",
"width",
"height",
"fov_h",
"fov_v",
"views",
]
params_dict = dict(zip(param_names, params))
self.processor.set_params(params_dict)
output_dir = Path.cwd() / "outputs" / time.strftime("%Y%m%d%H%M%S")
output_dir.mkdir(parents=True, exist_ok=True)
pano_images, pinhole_images_data = self.processor.process_video(video_file.name, output_dir)
image_list_for_gallery = [
(
Image.fromarray(cv2.cvtColor(img_info["image"], cv2.COLOR_BGR2RGB)),
"Frame {}, View: {}".format(img_info["pano_index"], img_info["view_name"]),
)
for img_info in pinhole_images_data
][: self.max_gallery_items]
if not image_list_for_gallery:
return gr.update(value=[], visible=False)
return gr.update(columns=len(params_dict["views"]), value=image_list_for_gallery)
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