Remove python prototype scripts

This commit is contained in:
2026-09-17 14:26:26 +02:00
parent 6a386d7d21
commit c6cabdf6b0
2 changed files with 0 additions and 136 deletions
-79
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import subprocess
import re
import sys
import json
from collections import Counter
def detect_crop(file_path):
cmd = [
'ffmpeg',
'-skip_frame', 'nokey',
'-i', file_path,
'-vf', 'cropdetect=limit=24/255:round=16:reset=0',
'-f', 'null',
'-'
]
process = subprocess.Popen(cmd, stderr=subprocess.PIPE, stdout=subprocess.PIPE, universal_newlines=True)
crop_pattern = re.compile(r'crop=([0-9]+):([0-9]+):([0-9]+):([0-9]+)')
crops = []
for line in process.stderr:
match = crop_pattern.search(line)
if match:
w, h, x, y = map(int, match.groups())
# ignorujemy calkowicie ciemne klatki (gdzie cropdetect ucina z kazdej strony)
# interesuje nas glownie format wideo (np proporcje)
crops.append((w, h, x, y))
process.wait()
if not crops:
return {"error": "No crop detected"}
# Policz jak często występuje dany crop
crop_counts = Counter(crops)
total_frames = len(crops)
# Filtrujemy losowe błędy i czarne plansze (szukamy cropów które występują co najmniej w 5% klatek kluczowych)
valid_crops = [c for c, count in crop_counts.items() if count / total_frames > 0.05]
if not valid_crops:
# Jeśli nic nie przekracza 5%, bierzemy po prostu najczęstszy
valid_crops = [crop_counts.most_common(1)[0][0]]
# Z valid_crops wybieramy taki "safe crop", który jest obwiednią (bounding box)
# dla wszystkich ISTOTNYCH proporcji w filmie.
# To pozwoli na zachowanie scen IMAX, a odcięcie stałych czarnych pasów.
min_x = min(c[2] for c in valid_crops)
min_y = min(c[3] for c in valid_crops)
max_xw = max(c[2] + c[0] for c in valid_crops)
max_yh = max(c[3] + c[1] for c in valid_crops)
safe_crop = {
"w": max_xw - min_x,
"h": max_yh - min_y,
"x": min_x,
"y": min_y
}
most_common_tuple = crop_counts.most_common(1)[0][0]
most_common = f"{most_common_tuple[0]}:{most_common_tuple[1]}:{most_common_tuple[2]}:{most_common_tuple[3]}"
return {
"safe_crop": safe_crop,
"most_common": most_common,
"valid_crops_considered": len(valid_crops),
"raw_crops_count": total_frames
}
if __name__ == '__main__':
if len(sys.argv) < 2:
print("Usage: python detect_crop.py <video_file>")
sys.exit(1)
file_path = sys.argv[1]
result = detect_crop(file_path)
print(json.dumps(result, indent=2))
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import subprocess
import sys
import os
def transcode_video(input_file, output_file, crop_param, hw_accel=False):
"""
Transcodes the video and applies cropping.
crop_param: string in the format "W:H:X:Y"
hw_accel: boolean, if true we use hardware acceleration (NVENC as an example)
"""
cmd = ['ffmpeg', '-y', '-i', input_file]
# We apply the crop filter
vf_param = f'crop={crop_param}'
if hw_accel:
# Example using NVIDIA NVENC.
# In a real Jellyfin environment, this would be constructed based on Jellyfin's profile.
cmd.extend([
'-c:v', 'h264_nvenc',
'-preset', 'fast',
'-vf', vf_param,
'-c:a', 'copy' # Keep audio as is
])
else:
# Software encoding fallback
cmd.extend([
'-c:v', 'libx264',
'-preset', 'fast',
'-crf', '23',
'-vf', vf_param,
'-c:a', 'copy'
])
cmd.append(output_file)
print(f"Running transcoding command: {' '.join(cmd)}")
# In a real scenario, this would stream to Jellyfin's output or write to the required segment files.
process = subprocess.Popen(cmd)
process.wait()
if process.returncode == 0:
print("Transcoding completed successfully.")
else:
print(f"Transcoding failed with code {process.returncode}")
if __name__ == '__main__':
if len(sys.argv) < 4:
print("Usage: python transcode_crop.py <input_file> <output_file> <crop_param>")
sys.exit(1)
input_file = sys.argv[1]
output_file = sys.argv[2]
crop_param = sys.argv[3]
transcode_video(input_file, output_file, crop_param, hw_accel=False)