Unknown encoder 'libx264'

[remycoopermusic]

Hi, I get this error. I've tried to install but doesn't seem to work. Any idea how to fix it?

(venv) (base) remy@Remys-MacBook-Pro AI-Youtube-Shorts-Generator % python main.py
Enter YouTube video URL: https://www.youtube.com/*correct link*
Available video streams:
0. Resolution: 1080p, Size: 210.07 MB, Type: Adaptive

1. Resolution: 720p, Size: 106.85 MB, Type: Adaptive
2. Resolution: 360p, Size: 25.46 MB, Type: Adaptive
3. Resolution: 360p, Size: 29.05 MB, Type: Progressive
4. Resolution: 144p, Size: 6.19 MB, Type: Adaptive
   Enter the number of the video stream to download: 1
   Downloading video: Traveling To Belgium
   Downloading audio...
   Merging video and audio...
   ffmpeg version 4.3 Copyright (c) 2000-2020 the FFmpeg developers
   built with clang version 10.0.0
   configuration: --prefix=/Users/remy/opt/anaconda3 --cc=x86_64-apple-darwin13.4.0-clang --disable-doc --disable-openssl --enable-avresample --enable-gnutls --enable-hardcoded-tables --enable-libfreetype --enable-libopenh264 --enable-pic --enable-pthreads --enable-shared --disable-static --enable-version3 --enable-zlib --enable-libmp3lame
   libavutil 56. 51.100 / 56. 51.100
   libavcodec 58. 91.100 / 58. 91.100
   libavformat 58. 45.100 / 58. 45.100
   libavdevice 58. 10.100 / 58. 10.100
   libavfilter 7. 85.100 / 7. 85.100
   libavresample 4. 0. 0 / 4. 0. 0
   libswscale 5. 7.100 / 5. 7.100
   libswresample 3. 7.100 / 3. 7.100
   Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/remy/AI-Youtube-Shorts-Generator/videos/video_Traveling To Belgium.mp4':
   Metadata:
   major_brand : dash
   minor_version : 0
   compatible_brands: iso6avc1mp41
   creation_time : 2025-02-04T12:32:24.000000Z
   Duration: 00:10:28.00, start: 0.000000, bitrate: 1427 kb/s
   Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], 7 kb/s, 24 fps, 24 tbr, 12288 tbn, 48 tbc (default)
   Metadata:
   creation_time : 2025-02-04T12:32:24.000000Z
   handler_name : ISO Media file produced by Google Inc.
   Input chore: update FaceCrop.py #1, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/remy/AI-Youtube-Shorts-Generator/videos/audio_Traveling To Belgium.m4a':
   Metadata:
   major_brand : dash
   minor_version : 0
   compatible_brands: iso6mp41
   creation_time : 2025-02-04T12:32:39.000000Z
   encoder : Google
   Duration: 00:10:28.10, start: 0.000000, bitrate: 48 kb/s
   Stream chore: update FaceCrop.py #1:0(und): Audio: aac (HE-AAC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 0 kb/s (default)
   Metadata:
   creation_time : 2025-02-04T12:32:39.000000Z
   handler_name : ISO Media file produced by Google Inc.
   Unknown encoder 'libx264'
   An error occurred: ffmpeg error (see stderr output for detail)
   Please make sure you have the latest version of pytube and ffmpeg-python installed.
   You can update them by running:
   pip install --upgrade pytube ffmpeg-python
   Also, ensure that ffmpeg is installed on your system and available in your PATH.
   Unable to Download the video
   (venv) (base) remy@Remys-MacBook-Pro AI-Youtube-Shorts-Generator %