Tag: #bitrate
6 articles
Reduce Video Size for Email with FFmpeg — Gmail/Outlook
Shrink a video small enough to email with FFmpeg. Hit Gmail's and Outlook.com's 25 MB attachment caps with CRF, downscaling, and a two-pass target-bitrate workflow. Includes the bitrate-from-size formula.
M4A to MP3 with FFmpeg — Bitrate, VBR, and Quality
Convert M4A (usually AAC, sometimes ALAC) audio to MP3 with FFmpeg using libmp3lame. Covers constant bitrate (-b:a 192k), variable bitrate (-q:a 2), choosing the right quality, and why M4A to MP3 always re-encodes. Practical, runnable commands.
Discord Video Compression with FFmpeg — Bitrate Math
Compress video to fit Discord's upload cap (Free 10 MB, Nitro Basic 25 MB, Boost Lv2 50 MB, Nitro 500 MB). Includes the bitrate reverse-calc formula, 2-pass encoding, resolution trade-offs, and a Windows drag-and-drop .bat.
FFmpeg YouTube Encoding Settings — 2026 Guide
Optimal FFmpeg encoding settings for YouTube uploads. A complete guide to CRF, bitrate, resolution, frame rate, and audio settings for H.264 and H.265.
FFmpeg Compress Video — CRF, Bitrate, Preset Guide
Compress MP4 and MOV video with FFmpeg: CRF mode vs bitrate mode explained, H.264 vs H.265 comparison table, preset speed/size benchmarks, resolution downscaling, audio compression, and 2-pass encoding. Reduce file size by 50–80%.
Two-Pass Encoding — Precise Bitrate and File Size Control
FFmpeg two-pass encoding for precise bitrate and file size control. Covers pass 1 analysis, pass 2 encoding, passlogfile option, and H.264/H.265 examples.