Autodesk 64006-051108-9001 User Guide - Page 100

Making QuickTime-wrapped DV Movies, DV Quality, DV Color, Open QuickTime Player.

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92 Chapter 7: Formats Making QuickTime-wrapped DV Movies Occasionally, you might want to create a QuickTime movie that has a DV video track contained within it. You can think of this as "wrapping" a DV stream with a QuickTime envelope. Doing this may be helpful for certain editing purposes, such as combining DV video/audio with media types that can't be stored in DV streams, such as Flash or MIDI. You can create a QuickTime-wrapped DV movie by selecting QuickTime Movie in the Format pop-up of the Output tab and choosing a DV codec in the Encode tab. If you do this, the movie will work on the desktop, but will not work on a DV tape or camera because it is not a true DV Stream. DV Quality The DV codec is CPU-intensive. In order to reduce the CPU load, this codec has a lower-quality preview mode. This plays better on lower-end computers, but displays very pixelated video. By default, most DV files will be displayed in this lower-quality preview mode. However, when you place these files back onto a DV tape, they will be displayed at their full quality. To view a DV file at full quality: 1. Open QuickTime Player. 2. Choose QuickTime Player > Preferences to bring up the Preferences dialog. 3. Under Movies, select the checkbox next to Use high quality video setting when available. 4. Close the dialog. When a DV movie is opened, it is displayed in the high quality mode. When displayed in high-quality mode, DV files may not play smoothly on slower desktop computers. However, they will play fine when output back to DV tapes. Cleaner automatically processes DV source material in its high-quality mode, so you don't need to change the High Quality option in QuickTime Player except to see how the file looks. DV Color The DV25 format (MiniDV, DVCAM) uses 4:1:1 color subsampling for NTSC material, and 4:2:0 color for PAL. The DVC Pro format, which includes DV25 and DV50, has two options: DVC Pro 50 (50 Mbits/sec) offers a higher color resolution of 4:2:2, and DVC Pro 25 (25 Mbits/sec) offers the standard 4:1:1.

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Chapter 7: Formats
92
Making QuickTime-wrapped DV Movies
Occasionally, you might want to create a QuickTime movie that has a DV video track contained
within it. You can think of this as “wrapping” a DV stream with a QuickTime envelope. Doing
this may be helpful for certain editing purposes, such as combining DV video/audio with
media types that can’t be stored in DV streams, such as Flash or MIDI.
You can create a QuickTime-wrapped DV movie by selecting QuickTime Movie in the Format
pop-up of the Output tab and choosing a DV codec in the Encode tab.
If you do this, the movie will work on the desktop, but will not work on a DV tape or camera
because it is not a true DV Stream.
DV Quality
The DV codec is CPU-intensive. In order to reduce the CPU load, this codec has a lower-quality
preview mode. This plays better on lower-end computers, but displays very pixelated video.
By default, most DV files will be displayed in this lower-quality preview mode. However,
when you place these files back onto a DV tape, they will be displayed at their full quality.
To view a DV file at full quality:
1.
Open QuickTime Player.
2.
Choose QuickTime Player > Preferences to bring up the Preferences dialog.
3.
Under Movies, select the checkbox next to Use high quality video setting when available.
4.
Close the dialog.
When a DV movie is opened, it is displayed in the high quality mode.
When displayed in high-quality mode, DV files may not play smoothly on slower desktop
computers. However, they will play fine when output back to DV tapes.
Cleaner automatically processes DV source material in its high-quality mode, so you don’t
need to change the High Quality option in QuickTime Player except to see how the file looks.
DV Color
The DV25 format (MiniDV, DVCAM) uses 4:1:1 color subsampling for NTSC material, and 4:2:0
color for PAL. The DVC Pro format, which includes DV25 and DV50, has two options: DVC Pro
50 (50 Mbits/sec) offers a higher color resolution of 4:2:2, and DVC Pro 25 (25 Mbits/sec) offers
the standard 4:1:1.