Alpha can also be "fast imported"� if you select the 601/709 option in the Import Settings dialog box, set the alpha channel import option to Use Existing, and import the movie as an OMF JFIF resolution into an SD project. Fast import can occur in an OMF or MXF project.Įxporting from a non-Avid product: Export a movie at a size of 720 x 486 (D1 NTSC) or 720 x 576 (D1 PAL) for optimal quality.Īlpha: This codec supports alpha channels. You can "fast import"� the movie if you select the 601/709 option in the Import Settings dialog box and import the video as a JFIF resolution into an SD project.
Import a QuickTime movie that has been compressed with this codec into an Avid editing application as a JFIF resolution in an SD project. Alpha will be "fast imported"� if you select the 601/709 option in the Import Settings dialog box, set the alpha channel import option to Use Existing, and import the movie as 1:1 OMF into an SD project.Įxporting using an Avid Editing Application: When JFIF compressed material (2:1, etc.) is exported "same as source"� or as a QuickTime reference movie from an Avid editing application, the Avid Meridien Compressed codec is used to view the movie in a non-Avid program. The movie will be "fast imported"� if you select the 601/709 option in the Import Settings dialog box and import the video as 1:1 OMF into an SD project.Įxporting from a non-Avid product: Export using this codec at a size of 720 x 486 (D1 NTSC) or 720 x 576 (D1 PAL), otherwise the export fails.Īlpha: This codec supports alpha channels. You should import a QuickTime movie that has been compressed with this codec into an Avid editing application as 1:1 OMF in an SD project. Failure to do this with current versions of Avid editing applications results in a dramatically slow import and incorrect color levels in the imported element.Įxporting using an Avid Editing Application: When you export 1:1 OMF material "same as source"� or as a QuickTime reference movie from an Avid editing application, the Avid Meridien Uncompressed codec is used to view the movie in a non-Avid program. You instead specify the QuickTime codec options in a third-party program whether the file you are creating or rendering contains a computer RGB or 601/709 mapping.
This is because the Avid codecs internally encode the material using 601/709 color levels. However, when importing movies compressed using any of the Avid QuickTime codecs, you should always set this option to 601/709, regardless of the color levels in the movie.
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PAL DV resolutions have an even (lower field first) ordering.ġ080i HD has an odd (upper field first) ordering.įor all non-Avid QuickTime codecs, these options allow you to specify whether the file being imported has pixel values that are stored using computer RGB values (where the 0-700 mV (video black to video white) voltages are mapped using the full range of 0-255, 8-bit) or ITU-R BT.601/ITU-R BT.709 values (where the 0-700 mV voltages are mapped using the 601/709 standard range of 16-235, 8-bit). PAL 601 resolutions have an odd (upper field first) ordering. NTSC 601/DV resolutions have an even (lower field first) ordering. This setting defines how the source material is interlaced.Īn odd, or upper-field ordering uses the first line of each frame for field one.Īn even, or lower-field ordering uses the first line of each frame for field two. This is because the Avid QuickTime codec inverts the alpha during the movie's creation, saving time on import into your editing applications while not significantly adding to the creation time in a third-party program. When alpha is imported from a non-Avid QuickTime codec, select Alpha > Invert Existing. Use Existing in the Import Settings dialog box.
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