MP4 Format Overview & Use Cases

MP4 is used for web distribution, camera capture, or desktop export; widely compatible.

Works well in browsers and mobile; mature cross‑platform support.

Mature ecosystem; broad player support

Flexible codecs; trade off quality vs size

Codec/container combos may vary in compatibility

Lossless scenarios produce large files

For universal playback, use MP3; for lossless choose FLAC or WAV.

For voice/podcast use AAC or M4A; for open ecosystems use OGG.

Video Compression Methods: CRF, Bitrate, Resize

Two‑Pass Encoding vs. CRF

PSNR/SSIM Metrics vs. Subjective Quality

H.264/H.265/AV1 Parameter Tuning