Grass Valley EDIUS Pro v.7.4 Reference Manual - Manual (Page 47)

Chapter 2 Project Settings — Project Operations
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[Bit Rate] Select a bitrate type.
[CBR] sets a fixed transfer rate, allocating a fixed number of bits during the encoding process.
Select a bitrate from the [Average] list. You can also enter a value directly.
[VBR] sets a variable transfer rate, altering the number of assigned bits according to the
complexity of the movement or image quality. Compared with [CBR], the media volume can be
used more efficiently, and this enables more consistent image quality overall. Select a bitrate
from the [Average] and [Max] lists. You can also enter a value directly.
[Quality/Speed] Select quality from the list. The higher the quality, the more time it takes to be encoded.
[Field Order] For interlace, a field order can be selected.
[GOP Structure] For MPEG, a certain number of frames is considered as a group, and operations such as
compression/enlargement and cut editing are performed on a GOP basis. A GOP comprises “I
frame”, “P frame” and “B frame”; the I frame allows images to be reproduced independently, the
P frame is for recording and reproducing only the differences with the preceding image, and
the B frame reproduces images from the differences in the preceding and following images.
Select I, P and B frame patterns of the GOP from the list. Normally, select [IBBP].
[I-Frame Only] is comprised of only I-pictures. Editing is made easier, but the amount of data
increases in size.
[Picture count] Set the number of frames included in a group.
[Closed GOP] Check this item to complete information within each GOP. Although the amount of data
increases, the video can be re-edited using software that supports GOP-based editing.
Normally, leave this item unchecked.
[Chroma Format] Select a YUV pixel format from the list.
[Profile & Level] Select a profile & level. If [Chroma Format] is [4:2:0] and [4:2:2], the profile will be set to Main
Profile and 422Profile, respectively. The level for SD image quality will be Main Level, and
the level for HD image quality will be High Level. The profile & level changes according to the
format selected in [Chroma Format].
JPEG2000 MXF
[Bit Rate] Select a bitrate from the list.
HDV
[Segment Encode] Check this item to export a clip of a raw source without re-encoding. Output speed is fast.
If the frame rate of the export format is 23.98p, segment encode is not available.
[Quality/Speed]
Select the quality of the part to be re-encoded from the list. The higher the quality, the more
time it takes to be encoded.
DV AVI
Check [Use MSDV codec] to export the content to an MSDV codec AVI.
Creating a New Project after Start-up
You can create a new project after starting up EDIUS.
1)
Click the [Create New Sequence] list button on the timeline.
2)
Click [New Project].
f If you create a new project during the editing operation, a confirmation dialog box appears to ask if you want to save the current project
file.
f The [Project Settings] (Simple Settings) dialog box appears.
“[Project Settings] (Simple Settings) Dialog Box” (w page 44)
1 Alternative
f Click [File] on the menu bar, and click [New] → [Project].
f Creating a new project after start-up: [Ctrl] + [N]