TikTok creator batch re-encoding old vertical videos for the TikTok AV1 beta program. AV1 for maximum quality at low bitrate, CRF 32 because TikTok caps uploads at 287 Mbps but re-encodes everything, AAC/MP4 for compatibility.
| Video Codec | AV1 |
| CRF | 32 |
| Resolution | 1080p |
| Audio | AAC |
| Container | MP4 |
ffmpeg -i input.mov -c:v libsvtav1 -crf 32 -c:a aac -b:a 128k -movflags +faststart output.mp4TikTok began supporting AV1 playback in 2023. Because TikTok videos are short (15-180s) and viewed billions of times, even a 20% bitrate reduction from AV1 saves TikTok an estimated $100M+ per year in CDN costs.
A new FFmpeg encoding puzzle every day. Six tries, in the browser or from your terminal.