347 lines
14 KiB
Python
347 lines
14 KiB
Python
import os
|
|
import sys
|
|
import glob
|
|
import cv2
|
|
import argparse
|
|
import shutil
|
|
import time
|
|
from pathlib import Path
|
|
from typing import List, Tuple, Optional
|
|
|
|
class MediaGrader:
|
|
# Configuration constants
|
|
DEFAULT_FPS = 30
|
|
BASE_FRAME_DELAY_MS = 33 # ~30 FPS
|
|
KEY_REPEAT_THRESHOLD_SEC = 0.5
|
|
WINDOW_MAX_WIDTH = 1200
|
|
WINDOW_MAX_HEIGHT = 800
|
|
WINDOW_MAX_SCALE_UP = 2.0
|
|
SPEED_INCREMENT = 0.1
|
|
MIN_PLAYBACK_SPEED = 0.1
|
|
MAX_PLAYBACK_SPEED = 100.0
|
|
FAST_SEEK_MULTIPLIER = 500
|
|
IFRAME_SNAP_INTERVAL = 30
|
|
IMAGE_DISPLAY_DELAY_MS = 100
|
|
|
|
def __init__(self, directory: str, seek_frames: int = 30, snap_to_iframe: bool = False):
|
|
self.directory = Path(directory)
|
|
self.seek_frames = seek_frames
|
|
self.snap_to_iframe = snap_to_iframe
|
|
self.current_index = 0
|
|
self.playback_speed = 1.0
|
|
self.media_files = []
|
|
self.current_cap = None
|
|
self.is_playing = True
|
|
self.current_frame = 0
|
|
self.total_frames = 0
|
|
|
|
# Key repeat tracking
|
|
self.last_key_time = 0
|
|
self.last_key = None
|
|
|
|
# Seeking modes
|
|
self.fine_seek_frames = 1 # Frame-by-frame
|
|
self.coarse_seek_frames = self.seek_frames # User-configurable
|
|
self.fast_seek_frames = self.seek_frames * self.FAST_SEEK_MULTIPLIER
|
|
|
|
# Supported media extensions
|
|
self.extensions = ['*.png', '*.jpg', '*.jpeg', '*.gif', '*.mp4', '*.avi', '*.mov', '*.mkv']
|
|
|
|
# Create grade directories
|
|
for i in range(1, 6):
|
|
grade_dir = self.directory / str(i)
|
|
grade_dir.mkdir(exist_ok=True)
|
|
|
|
def find_media_files(self) -> List[Path]:
|
|
"""Find all media files recursively in the directory"""
|
|
media_files = []
|
|
for ext in self.extensions:
|
|
pattern = str(self.directory / "**" / ext)
|
|
files = glob.glob(pattern, recursive=True)
|
|
media_files.extend([Path(f) for f in files])
|
|
|
|
# Filter out files already in grade directories
|
|
filtered_files = []
|
|
for file in media_files:
|
|
# Check if file is not in a grade directory (1-5)
|
|
if not any(part in ['1', '2', '3', '4', '5'] for part in file.parts):
|
|
filtered_files.append(file)
|
|
|
|
return sorted(filtered_files)
|
|
|
|
def is_video(self, file_path: Path) -> bool:
|
|
"""Check if file is a video"""
|
|
return file_path.suffix.lower() in ['.mp4', '.avi', '.mov', '.mkv', '.gif']
|
|
|
|
def calculate_frame_delay(self) -> int:
|
|
"""Calculate frame delay in milliseconds based on playback speed"""
|
|
if not self.is_playing:
|
|
return 0 # No delay when paused
|
|
|
|
# Base delay for 30 FPS, adjusted by playback speed
|
|
delay_ms = int(self.BASE_FRAME_DELAY_MS / self.playback_speed)
|
|
return max(1, delay_ms) # Minimum 1ms delay
|
|
|
|
def load_media(self, file_path: Path) -> bool:
|
|
"""Load media file for display"""
|
|
if self.current_cap:
|
|
self.current_cap.release()
|
|
|
|
if self.is_video(file_path):
|
|
self.current_cap = cv2.VideoCapture(str(file_path))
|
|
if not self.current_cap.isOpened():
|
|
return False
|
|
self.total_frames = int(self.current_cap.get(cv2.CAP_PROP_FRAME_COUNT))
|
|
self.current_frame = 0
|
|
else:
|
|
# For images, we'll just display them
|
|
self.current_cap = None
|
|
self.total_frames = 1
|
|
self.current_frame = 0
|
|
|
|
return True
|
|
|
|
def display_media(self, file_path: Path) -> Optional[Tuple[bool, any]]:
|
|
"""Display current media file"""
|
|
if self.is_video(file_path):
|
|
if not self.current_cap:
|
|
return None
|
|
|
|
ret, frame = self.current_cap.read()
|
|
if not ret:
|
|
return False, None
|
|
|
|
self.current_frame = int(self.current_cap.get(cv2.CAP_PROP_POS_FRAMES))
|
|
return True, frame
|
|
else:
|
|
# Display image
|
|
frame = cv2.imread(str(file_path))
|
|
if frame is None:
|
|
return False, None
|
|
return True, frame
|
|
|
|
def auto_resize_window(self, frame):
|
|
"""Auto-resize window to fit media while respecting screen limits"""
|
|
height, width = frame.shape[:2]
|
|
|
|
# Calculate scaling factor to fit within max dimensions
|
|
scale_w = self.WINDOW_MAX_WIDTH / width if width > self.WINDOW_MAX_WIDTH else 1.0
|
|
scale_h = self.WINDOW_MAX_HEIGHT / height if height > self.WINDOW_MAX_HEIGHT else 1.0
|
|
scale = min(scale_w, scale_h)
|
|
|
|
# Don't scale up small images too much
|
|
if scale > self.WINDOW_MAX_SCALE_UP:
|
|
scale = self.WINDOW_MAX_SCALE_UP
|
|
|
|
new_width = int(width * scale)
|
|
new_height = int(height * scale)
|
|
|
|
cv2.resizeWindow('Media Grader', new_width, new_height)
|
|
|
|
def seek_video(self, frames_delta: int):
|
|
"""Seek video by specified number of frames"""
|
|
if not self.current_cap or not self.is_video(self.media_files[self.current_index]):
|
|
return
|
|
|
|
new_frame = max(0, min(self.current_frame + frames_delta, self.total_frames - 1))
|
|
|
|
if self.snap_to_iframe and frames_delta < 0:
|
|
# Find previous I-frame (approximation)
|
|
new_frame = max(0, new_frame - (new_frame % self.IFRAME_SNAP_INTERVAL))
|
|
|
|
self.current_cap.set(cv2.CAP_PROP_POS_FRAMES, new_frame)
|
|
self.current_frame = new_frame
|
|
|
|
def handle_seeking_key(self, key: int) -> bool:
|
|
"""Handle seeking keys with different granularities. Returns True if key was handled."""
|
|
current_time = time.time()
|
|
|
|
# Determine seek amount based on key and timing
|
|
seek_amount = 0
|
|
|
|
# Try different arrow key detection methods
|
|
if key == 2424832 or key == 81: # Left arrow (different systems)
|
|
if self.last_key == key and (current_time - self.last_key_time) < self.KEY_REPEAT_THRESHOLD_SEC:
|
|
seek_amount = -self.fast_seek_frames
|
|
else:
|
|
seek_amount = -self.coarse_seek_frames
|
|
elif key == 2555904 or key == 83: # Right arrow (different systems)
|
|
if self.last_key == key and (current_time - self.last_key_time) < self.KEY_REPEAT_THRESHOLD_SEC:
|
|
seek_amount = self.fast_seek_frames
|
|
else:
|
|
seek_amount = self.coarse_seek_frames
|
|
elif key == ord(','): # Comma - fine seek backward
|
|
seek_amount = -self.fine_seek_frames
|
|
elif key == ord('.'): # Period - fine seek forward
|
|
seek_amount = self.fine_seek_frames
|
|
else:
|
|
return False
|
|
|
|
self.seek_video(seek_amount)
|
|
self.last_key = key
|
|
self.last_key_time = current_time
|
|
return True
|
|
|
|
def grade_media(self, grade: int):
|
|
"""Move current media file to grade directory"""
|
|
if not self.media_files or grade < 1 or grade > 5:
|
|
return
|
|
|
|
current_file = self.media_files[self.current_index]
|
|
grade_dir = self.directory / str(grade)
|
|
destination = grade_dir / current_file.name
|
|
|
|
# Handle name conflicts
|
|
counter = 1
|
|
while destination.exists():
|
|
stem = current_file.stem
|
|
suffix = current_file.suffix
|
|
destination = grade_dir / f"{stem}_{counter}{suffix}"
|
|
counter += 1
|
|
|
|
try:
|
|
shutil.move(str(current_file), str(destination))
|
|
print(f"Moved {current_file.name} to grade {grade}")
|
|
|
|
# Remove from current list
|
|
self.media_files.pop(self.current_index)
|
|
|
|
# Adjust current index
|
|
if self.current_index >= len(self.media_files):
|
|
self.current_index = 0
|
|
|
|
if not self.media_files:
|
|
print("No more media files to grade!")
|
|
return False
|
|
|
|
except Exception as e:
|
|
print(f"Error moving file: {e}")
|
|
|
|
return True
|
|
|
|
def run(self):
|
|
"""Main grading loop"""
|
|
self.media_files = self.find_media_files()
|
|
|
|
if not self.media_files:
|
|
print("No media files found in directory!")
|
|
return
|
|
|
|
print(f"Found {len(self.media_files)} media files")
|
|
print("Controls:")
|
|
print(" Space: Pause/Play")
|
|
print(" Left/Right: Seek backward/forward (accelerates on repeat)")
|
|
print(" , / . : Frame-by-frame seek (fine control)")
|
|
print(" A/D: Decrease/Increase playback speed")
|
|
print(" 1-5: Grade and move file")
|
|
print(" N: Next file")
|
|
print(" P: Previous file")
|
|
print(" Q/ESC: Quit")
|
|
|
|
cv2.namedWindow('Media Grader', cv2.WINDOW_NORMAL)
|
|
|
|
while self.media_files and self.current_index < len(self.media_files):
|
|
current_file = self.media_files[self.current_index]
|
|
|
|
if not self.load_media(current_file):
|
|
print(f"Could not load {current_file}")
|
|
self.current_index += 1
|
|
continue
|
|
|
|
window_title = f"Media Grader - {current_file.name} ({self.current_index + 1}/{len(self.media_files)})"
|
|
cv2.setWindowTitle('Media Grader', window_title)
|
|
|
|
window_resized = False
|
|
|
|
while True:
|
|
# Only advance frame if playing (for videos)
|
|
if self.is_playing or not self.is_video(current_file):
|
|
result = self.display_media(current_file)
|
|
if result is None or not result[0]:
|
|
break
|
|
|
|
ret, frame = result
|
|
|
|
# Auto-resize window on first frame
|
|
if not window_resized:
|
|
self.auto_resize_window(frame)
|
|
window_resized = True
|
|
|
|
# Add info overlay
|
|
info_text = f"Speed: {self.playback_speed:.1f}x | Frame: {self.current_frame}/{self.total_frames} | File: {self.current_index + 1}/{len(self.media_files)}"
|
|
help_text = "Seek: ←→ (accel) ,. (fine) | A/D speed | 1-5 grade | Space pause | Q quit"
|
|
|
|
# White background for text visibility
|
|
cv2.putText(frame, info_text, (10, 30), cv2.FONT_HERSHEY_SIMPLEX, 0.7, (255, 255, 255), 2)
|
|
cv2.putText(frame, info_text, (10, 30), cv2.FONT_HERSHEY_SIMPLEX, 0.7, (0, 0, 0), 1)
|
|
cv2.putText(frame, help_text, (10, 60), cv2.FONT_HERSHEY_SIMPLEX, 0.5, (255, 255, 255), 2)
|
|
cv2.putText(frame, help_text, (10, 60), cv2.FONT_HERSHEY_SIMPLEX, 0.5, (0, 0, 0), 1)
|
|
|
|
cv2.imshow('Media Grader', frame)
|
|
|
|
# Calculate appropriate delay
|
|
delay = self.calculate_frame_delay() if self.is_video(current_file) else self.IMAGE_DISPLAY_DELAY_MS
|
|
|
|
key = cv2.waitKey(delay) & 0xFF
|
|
|
|
# Debug: print key codes to help with arrow key detection
|
|
if key != 255: # 255 means no key pressed
|
|
print(f"Key pressed: {key}")
|
|
|
|
if key == ord('q') or key == 27: # Q or ESC
|
|
return
|
|
elif key == ord(' '): # Space - pause/play
|
|
self.is_playing = not self.is_playing
|
|
elif key == ord('a'): # A - decrease speed
|
|
self.playback_speed = max(self.MIN_PLAYBACK_SPEED, self.playback_speed - self.SPEED_INCREMENT)
|
|
elif key == ord('d'): # D - increase speed
|
|
self.playback_speed = min(self.MAX_PLAYBACK_SPEED, self.playback_speed + self.SPEED_INCREMENT)
|
|
elif self.handle_seeking_key(key):
|
|
# Seeking was handled
|
|
pass
|
|
elif key == ord('n'): # Next file
|
|
break
|
|
elif key == ord('p'): # Previous file
|
|
self.current_index = max(0, self.current_index - 1)
|
|
break
|
|
elif key in [ord('1'), ord('2'), ord('3'), ord('4'), ord('5')]: # Grade
|
|
grade = int(chr(key))
|
|
if not self.grade_media(grade):
|
|
return
|
|
break
|
|
|
|
if key not in [ord('p')]: # Don't increment for previous
|
|
self.current_index += 1
|
|
|
|
if self.current_cap:
|
|
self.current_cap.release()
|
|
cv2.destroyAllWindows()
|
|
|
|
print("Grading session complete!")
|
|
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser(description='Media Grader - Grade media files by moving them to numbered folders')
|
|
parser.add_argument('directory', nargs='?', default='.', help='Directory to scan for media files (default: current directory)')
|
|
parser.add_argument('--seek-frames', type=int, default=30, help='Number of frames to seek when using arrow keys (default: 30)')
|
|
parser.add_argument('--snap-to-iframe', action='store_true', help='Snap to I-frames when seeking backward for better performance')
|
|
|
|
args = parser.parse_args()
|
|
|
|
if not os.path.isdir(args.directory):
|
|
print(f"Error: {args.directory} is not a valid directory")
|
|
sys.exit(1)
|
|
|
|
grader = MediaGrader(args.directory, args.seek_frames, args.snap_to_iframe)
|
|
try:
|
|
grader.run()
|
|
except KeyboardInterrupt:
|
|
print("\nGrading session interrupted")
|
|
except Exception as e:
|
|
print(f"Error: {e}")
|
|
sys.exit(1)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|