Tag: #ffmpeg

Convert MKV to MP4 the fast, lossless way using FFmpeg remux. Remux vs. re-encode compared, the three typical failure modes (subtitle format, non-standard audio, AV1/VP9), movflags +faststart explained, and a practical audio-only re-encode recipe.

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.

Make iPhone-captured HEVC .mov files play on Windows, Discord, Twitter, and the rest of the world. Lossless remux, hvc1 tag explained, H.264 re-encode for older players, batch conversion, and iPhone camera-format settings — covered with FFmpeg.

Learn how to encode AV1 video with FFmpeg. Covers libsvtav1 (fast) vs libaom-av1, CRF mode, 2-pass encoding, comparison with H.264/H.265, and browser compatibility.

Automate FFmpeg batch conversions: for loops, skip-already-converted logic, separate output directories, GNU parallel for multi-core processing, xargs, structured error handling with logs, Windows batch files, five error fixes, and five FAQ answers.

Learn how to convert HDR (HDR10/HLG) video to SDR with FFmpeg. Covers zscale tone mapping, color space conversion (BT.2020→BT.709), pixel format conversion, and YouTube upload settings.

How to stream live video with FFmpeg using RTMP. Covers pushing to YouTube Live and Twitch, encoding settings, looping a file for broadcast, low-latency settings, and common errors.

Join and concatenate videos with FFmpeg: concat demuxer for fast no-re-encode merging of same-format files, concat filter for different formats and resolutions. concat.txt syntax, filter_complex approach, audio track alignment, and five common error fixes.

Convert audio formats with FFmpeg: WAV, MP3, AAC, FLAC. Covers -c:a encoder, -b:a vs -q:a quality control, and -ar sample rate conversion.

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%.

Fix audio-video sync drift (lip sync issues) with FFmpeg: -itsoffset for lossless timestamp shift, adelay filter for millisecond-precise audio delay, -async for auto-correction, measuring drift with ffprobe, five error fixes, and five FAQ answers.

Extract audio from video with FFmpeg: lossless copy (-c:a copy) vs re-encoding and when to use each, MP3/AAC/FLAC/WAV format-specific commands, multi-track selection with -map, time-range extraction, batch processing, and five common error fixes.

Change video frame rates with FFmpeg: fps filter vs -r option comparison and when each is correct, checking fps with ffprobe, 60→30→24fps conversion examples, timelapse creation, VFR handling, five error fixes, and five FAQ answers.

Master FFmpeg command syntax: global options, -i input, -c:v/-c:a stream selection, automatic format detection, and how to avoid common ordering mistakes.

Fix common FFmpeg errors fast: Unknown encoder, moov atom not found, height not divisible by 2, Invalid data found when processing input, and more. Each error entry shows the exact message, root cause, and the fix command — searchable quick reference.

Extract video thumbnails with FFmpeg: -vframes for a specific timestamp, thumbnail filter for best-frame selection, resolution scaling, and PNG vs JPG output.

Generate HLS segments and m3u8 playlists with FFmpeg for HTTP Live Streaming. Covers hls_time, hls_list_size, hls_segment_filename, and adaptive bitrate basics.

Install FFmpeg on Windows, macOS, and Linux: gyan.dev builds, Homebrew, apt/dnf. Configure PATH and verify with ffmpeg -version. Official sources only — get started in minutes.

Convert video to high-quality GIF with FFmpeg's two-pass palettegen + paletteuse pipeline. Covers fps/resolution/dithering comparison tables, file size optimization, trimming a clip before GIF conversion, batch processing, and five common error fixes.

Normalize audio to EBU R128 standard with FFmpeg loudnorm filter. Single-pass and two-pass measurement modes. Key parameters: I (integrated LUFS), TP, and LRA.

Rotate and flip video with FFmpeg: transpose filter values (0–3), hflip/vflip for mirror effects, fixing iPhone and Android portrait-mode videos that appear sideways, metadata-only rotation vs re-encoding comparison, five error fixes, and five FAQ answers.

Resize video with FFmpeg scale filter: aspect ratio auto-preservation (-1/-2), relative scaling, max resolution capping, and letterboxing with the pad filter.

Understand the three FFmpeg CLI tools: ffprobe for media inspection, ffmpeg for conversion and encoding, ffplay for playback and testing. When to use each.

Burn subtitles permanently into video with FFmpeg: subtitles filter for SRT/VTT, ass filter for styled ASS/SSA, font and position customization, hard sub vs soft sub comparison, libass installation, and five common error fixes.

Create video slideshows and timelapses with FFmpeg: sequential PNG/JPG to video, single image looping, frame-drop timelapse, and pix_fmt yuv420p compatibility.

Trim video precisely with FFmpeg. Learn -ss/-to/-t options, input-side vs output-side -ss trade-offs, stream-copy fast cutting, frame-accurate re-encoding, batch trim scripts, and how to fix the keyframe artifact problem.

Convert video formats MP4, MKV, WebM, MOV with FFmpeg: container vs codec differences, when -c copy works vs fails, and ffprobe for codec inspection.

Stabilize shaky video with FFmpeg vidstab filters: vidstabdetect + vidstabtransform two-pass pipeline, smoothing strength, crop modes, and libvidstab setup.

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.

Add watermarks and logos to video with FFmpeg's overlay filter. Covers position variables, transparent PNG alpha support, opacity control, time-limited display, scrolling animation, multiple logos, and five common error fixes.

Beginner's guide to FFmpeg: what it does, codec vs container differences, video conversion, compression, audio extraction, GIF creation, subtitle burning, the ffmpeg/ffprobe/ffplay tools, libav* libraries, and five FAQ answers.