import os import re import subprocess import requests def download_and_repack_fb(fb_url, output_name="final_output.mp4"): headers = "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36" print("[*] Fetching Facebook page source...") response = requests.get(fb_url, headers=headers) html_content = response.text # Search for HD/SD video links and audio links inside the page metadata video_urls = re.findall(r'"browser_native_hd_url":"(.*?)"', html_content) if not video_urls: video_urls = re.findall(r'"browser_native_sd_url":"(.*?)"', html_content) audio_urls = re.findall(r'"audio_url":"(.*?)"', html_content) if not video_urls: print("[!] Error: Could not find video stream links. The video might be private.") return # Clean the extracted URLs video_url = video_urls[0].replace(r'\/', '/') audio_url = audio_urls[0].replace(r'\/', '/') if audio_urls else None print("[*] Downloading video stream...") with open("temp_video.mp4", "wb") as f: f.write(requests.get(video_url, headers=headers).content) if audio_url: print("[*] DASH stream detected. Downloading separate audio stream...") with open("temp_audio.mp4", "wb") as f: f.write(requests.get(audio_url, headers=headers).content) print("[*] Repacking streams into a single file using FFmpeg...") # -c:v copy -c:a copy merges the streams instantly without re-encoding loss cmd = f'ffmpeg -i temp_video.mp4 -i temp_audio.mp4 -c:v copy -c:a copy -y "output_name"' subprocess.run(cmd, shell=True) # Clean up temporary files os.remove("temp_video.mp4") os.remove("temp_audio.mp4") print(f"[+] Success! Repacked video saved as: output_name") else: # If no separate audio url found, the video file already contains audio os.rename("temp_video.mp4", output_name) print(f"[+] Success! Single stream video saved as: output_name") # Example execution if __name__ == "__main__": target_url = input("Enter Facebook Video URL: ") download_and_repack_fb(target_url) Use code with caution. Troubleshooting Common Script Failures 1. HTTP Error 403: Forbidden
Intercepting and fetching raw video stream files from Facebook's servers. script download facebook video repack
: This Chrome extension offers a modern popup interface with features like video preview and local video management. It employs advanced techniques like User-Agent spoofing (making Facebook think you're on mobile, which makes extraction easier) and multi-layer video detection to ensure it finds every available video on the page. import os import re import subprocess import requests
When you search for a "script download facebook video repack," you are likely to stumble upon many unofficial sources. These pose significant risks: Repacked video saved as: output_name") else: # If
yt-dlp -f "bv*+ba/b" --merge-output-format mp4 "YOUR_FACEBOOK_VIDEO_URL" Use code with caution. Copied to clipboard
To successfully download and process Facebook videos, a script typically relies on a specific ecosystem of open-source tools: