Compression
¿Qué es Compression?
Compression makes image, video, and audio files smaller so they're easier to store and share. Depending on the type, it either keeps all the original data intact or throws away some details the viewer is unlikely to notice.
De un vistazo
- También conocido como
- EncodingVideo encodingCodec compressionData compression
- Se usa para
- Reducing file size for storage and deliveryStreaming optimisationArchival encodingWeb and mobile delivery
- Herramientas comunes
- HandBrakeFFmpegAdobe media encoderDaVinci resolveCompressor (macOS)
- Términos relacionados
- CodecBitrateArtifacts (visual)ResolutionProRes
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Cómo se compara
Lossless compression reduces file size without any quality loss, allowing perfect reconstruction of the original data: suitable for editing and archival but achieving smaller size reductions. Lossy compression achieves much smaller file sizes by permanently discarding data, introducing some quality degradation: appropriate for final delivery and streaming where bandwidth efficiency is prioritised.
Piénsalo como…
Lossless compression is like folding a map: all the information is still there, just packed more neatly, and you can unfold it to get back exactly what you started with. Lossy compression is like summarising that map: you keep the major roads and landmarks but leave out the minor details, resulting in something much smaller that's still useful, but not quite a perfect reproduction of the original.
Consejo pro
When preparing footage for AI upscaling or restoration, always use the highest bitrate source available: heavily compressed input material limits the quality ceiling of any AI processing applied to it, regardless of how powerful the model is.
Tipos y variaciones
- Lossless compression preserves all original data and is used for archival, editing, and master files.
- Lossy compression discards perceptually less important data and is used for delivery and streaming.
- Intra-frame compression (such as ProRes and MJPEG) compresses each frame independently, making it edit-friendly but less space-efficient.
- Inter-frame compression (such as H.
- 264 and H.
- 265) encodes differences between frames, achieving higher efficiency but making the footage harder to edit without re-encoding.
- Perceptual compression (used in audio formats such as MP3 and AAC) is specifically designed to remove frequencies human hearing is less sensitive to.
¿Listo para crear tu primera escena en Morphic?
Prueba MorphicCasos de uso comunes
- Compression is applied at virtually every stage of a media production workflow.
- Camera footage is captured in compressed or uncompressed formats depending on the camera and production requirements.
- During editing, high-quality intermediate codecs such as ProRes or DNxHD are used to maintain quality through multiple processing generations.
- At delivery, masters are compressed to streaming formats (H.
- 264 or H.
- 265) optimised for the target platform.
- In AI workflows, source footage quality ( and therefore its compression level ) directly affects the quality of outputs from upscaling, restoration, and generative tools.
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