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Table Of Contents
1228Motion User Guide
Video files and formats
Media file formats
Popular video codecs in Motion
In Motion, you can use video compressed with nearly any video codec. However, it’s best
to use high-quality codecs with a minimum of compression. Codecs that highly compress
files, such as MPEG-4 or Sorenson, are less suitable for creating high-quality work.
Not all codecs support alpha channels. Alpha channels are useful if you’re delivering
an effects shot for use in someone else’s composition. If you’re required to export a
composition using a codec with no alpha channel support, you must export the alpha
channel as a separate grayscale media file.
Note: Motion processes color in the RGB color space. Any clips that were captured or
recompressed using a Y’C
B
C
R
-aware codec, such as DV, the Apple ProRes family, or
Uncompressed 8-bit 4:2:2, are converted to the RGB color space when used in a Motion
project. Clips exported from Motion using a Y’C
B
C
R
codec are converted back into the
Y’C
B
C
R
color space.
For a complete list of file formats supported by Motion, see Supported media formats
in Motion.
Apple ProRes
Apple ProRes codecs provide an unparalleled combination of multistream, real-time editing
performance, impressive image quality, and reduced storage rates. Apple ProRes codecs
take full advantage of multicore processing and feature fast, reduced-resolution decoding
modes. All Apple ProRes codecs support any frame size (including SD, HD, 2K, and 4K) at
full resolution. The data rates vary based on codec type, image content, frame size, and
frame rate.
Apple ProRes includes the following formats:
• Apple ProRes Raw: Apple’s newest ProRes option, based on the same principles and
underlying technology as existing ProRes codecs, but applied to a camera sensor’s pristine
raw image data rather than conventional image pixels. ProRes RAW is available at two
compression levels: Apple ProRes RAW and Apple ProRes RAW HQ. Both achieve excellent
preservation of raw video content, with additional quality available at the higher data rate
of Apple ProRes RAW HQ. Compression-related visible artifacts are very unlikely with
Apple ProRes RAW, and extremely unlikely with Apple ProRes RAW HQ. ProRes RAW brings
to raw video the same great performance, quality, and ease of use that ProRes has brought
to conventional video, in a format ideal for high-dynamic-range (HDR) content creation.