cv_workshop_1 / ball_app.py
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import os
import time
import tempfile
import cv2
import streamlit as st
from ultralytics import YOLO
@st.cache_resource
def load_model():
return YOLO("models/soccer_ball.pt")
def process_video(video_path):
cap = cv2.VideoCapture(video_path)
width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
fps = int(cap.get(cv2.CAP_PROP_FPS))
total_frames = int(cap.get(cv2.CAP_PROP_FRAME_COUNT))
temp_file = tempfile.NamedTemporaryFile(delete=False, suffix=".mp4")
fourcc = cv2.VideoWriter_fourcc(*'avc1')
out = cv2.VideoWriter(temp_file.name, fourcc, fps, (width, height))
progress_text = "Processing video... Please wait."
progress_bar = st.progress(0)
status_text = st.empty()
time_text = st.empty()
start_time = time.time()
for frame_num in range(total_frames):
ret, frame = cap.read()
if not ret:
break
results = model(frame)
annotated_frame = results[0].plot()
out.write(annotated_frame)
# Update progress
progress = (frame_num + 1) / total_frames
elapsed_time = time.time() - start_time
estimated_total_time = elapsed_time / progress
remaining_time = estimated_total_time - elapsed_time
progress_bar.progress(progress)
status_text.text(f"Processing frame {frame_num+1}/{total_frames}")
time_text.text(f"Elapsed time: {elapsed_time:.2f}s | Estimated time remaining: {remaining_time:.2f}s")
cap.release()
out.release()
progress_bar.empty()
status_text.text(f"Processed {total_frames} frames")
time_text.text(f"Total time: {time.time() - start_time:.2f}s")
return temp_file.name
model = load_model()
st.title("Soccer Ball Detection App")
# Sidebar for options
st.sidebar.header("Options")
video_option = st.sidebar.radio("Choose video source:", ("Use preset video", "Upload video"))
if video_option == "Upload video":
uploaded_file = st.sidebar.file_uploader("Choose a video file", type=["mp4", "avi", "mov"])
if uploaded_file is not None:
tfile = tempfile.NamedTemporaryFile(delete=False, suffix=".mp4")
tfile.write(uploaded_file.read())
video_path = tfile.name
else:
preset_videos = {
"Ronaldo": "preset_videos/Ronaldo.mp4",
"Sancho": "preset_videos/CityUtdR video.mp4",
"Messi": "preset_videos/Messi.mp4",
}
selected_video = st.sidebar.selectbox("Select a preset video", list(preset_videos.keys()))
video_path = preset_videos[selected_video]
if 'video_path' in locals():
st.header("Original Video")
st.video(video_path)
if st.button("Detect"):
with st.spinner("Processing video..."):
processed_video_path = process_video(video_path)
st.success("Video processing complete!")
st.header("Processed Video")
st.video(processed_video_path)
# Add download link
with open(processed_video_path, "rb") as file:
btn = st.download_button(
label="Download Video",
data=file,
file_name="processed_video.mp4",
mime="video/mp4"
)
# Clean up temporary files
os.unlink(processed_video_path)
if video_option == "Upload video":
os.unlink(video_path)
st.sidebar.markdown("---")
st.sidebar.write("Developed with ❤️ by Break Into Data")