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# Copyright (c) 2025 Stephen G. Pope
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import os
import subprocess
import json
from services.file_management import download_file
STORAGE_PATH = "/tmp/"
def process_keyframe_extraction(video_url, job_id):
video_path = download_file(video_url, STORAGE_PATH)
# Extract keyframes
output_pattern = os.path.join(STORAGE_PATH, f"{job_id}_%03d.jpg")
cmd = [
'ffmpeg',
'-i', video_path,
'-vf', f"select='eq(pict_type,I)',scale=iw*sar:ih,setsar=1",
'-vsync', 'vfr',
output_pattern
]
print(f"Images: {cmd}")
subprocess.run(cmd, check=True)
# Upload keyframes to GCS and get URLs
output_filenames = []
for filename in sorted(os.listdir(STORAGE_PATH)):
if filename.startswith(f"{job_id}_") and filename.endswith(".jpg"):
file_path = os.path.join(STORAGE_PATH, filename)
output_filenames.append(file_path)
# Clean up input file
os.remove(video_path)
return output_filenames |