Studio 21.1.1
Module 15 · Deliver
LESSON 15.01 · 35 MIN PRACTICE

Containers, codecs, bit depth, and compression

A container holds streams and metadata. A codec encodes picture or sound. File extension alone does not describe quality, compatibility, or the amount of information preserved.

What you’ll be able to do

Choose a deliverable using its actual encoding requirements rather than its extension.

SourceProcessingCodecContainerPlayback

Conceptual workflow · read from left to right

ACTUAL RESOLVE INTERFACEView full size ↗
Deliver page: render settings, viewer, and timeline
Deliver page: render settings, viewer, and timeline Reference example from the DaVinci Resolve 21.1 manual, page 49. Software screenshot © Blackmagic Design. The demonstration media and selected settings may differ from your project.

Work through it

  1. Inspect a source file’s container and codec in metadata. Distinguish a .mov or .mp4 container from its encoded video and audio streams.
  2. Compare a compressed review format with a supported high-quality intermediate format. Note differences in file size, playback, and suitability for further editing.
  3. Review resolution, frame rate, bit depth, chroma sampling, and audio settings supported by your system and selected codec. Some options vary by operating system, hardware, and Studio support.
  4. Export a short difficult section with motion, fine detail, or gradients. Compare it at normal viewing size and 100% before selecting settings for the whole film.

A mistake to avoid

A larger bitrate does not guarantee a better result if the source, codec, or pipeline is already the limiting factor. Avoid repeated lossy re-encoding.

Your turn

Create a review copy and an intermediate-quality copy of the same sequence. Record their settings, size, and visible differences.

QUICK KNOWLEDGE CHECK

What is the difference between container and codec?

Your notes

Write down what worked, what surprised you, and what to try next. Saved on this device.

Previous lessonNext lesson

Original practical lesson · Open the in-house resource shelf for practice files and definitions. Completion records your self-assessment, not certification.