DVD Studio Pro 4
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Figure 7-27 Stream Language Select tool (Audio, Subtitles only)
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More Track Display Selection Tools
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At the bottom of the Track Editor are three display selection tools that closely resemble similar tools in Final Cut Pro: Stream Height Select Timeline Bottom, extreme left (Fig 7-29) There are four bars of varying height, each of which selects a Stream Height level There are four levels of Stream Height selectable, which control the height of all streams visible in the Track Editor These can be seen in Figures 7-30a, 7-30b, 7-31a, and 7-31b
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Figure 7-28 Using the Language Selection pop-up for a Subtitle Stream
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The Subtitle Stream Language Select pop-up shown in Figure 7-28 selects a label for the Language associated with that Stream This label is read by DVD players and used to identify the language contained within that Subtitle stream to the DVD viewer You will find more information about Subtitles in 12
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Figure 7-29 Stream Height Tool
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Figure 7-30a Maximum Stream Height
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Figure 7-30b Large Stream Height
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Figure 7-31a Medium Stream Height (Default)
Figure 7-31b Small Stream Height
Timeline Zoom Tool Timeline Bottom left (see Fig 7-32) The Timeline Zoom determines how much of the current timeline is visible within the Track Editor The Zoom level is selectable in a smooth sliding
scale using this tool The degree of zoom can also be selected using = and Timeline Scroll Tool the bar to the right of the Zoom (see Fig 7-33) This Tool can be dragged to resize the Zoom of the Timeline and to locate the visible position of the Timeline Dragging either end allows scaling of the display, while dragging from the middle allows scrolling of the displayed portion of the timeline The little inverted triangle shows the current position of the Playhead
TIP! Hold shift while scrolling to keep the Playhead visible!
Figure 7-32 Timeline Zoom Tool (also can use and )
DVD Studio Pro 4
How the Timeline Works Zero-Based versus Asset-Based TC
The Timeline in the Track Editor defaults to a measurement of elapsed time basically, the Track s running time beginning at what is usually called Hour Zero SMPTE value 00:00:00:00 Although MPEG files may contain timecode values other than Hour Zero embedded during encoding, the default time base is called Zero-Based Timecode In this mode, the duration of the MPEG video asset is counted in Hours, Minutes, Seconds, and Frames elapsed from Hour Zero at the Start of Track ( 1) The location of any marker within the MPEG file can thus be defined by its distance from the beginning of the stream As an alternative, SMPTE timecode embedded within the MPEG file can be displayed instead, by using the Asset-Based Timecode mode, which can be selected by Control-Clicking on the Timeline ruler
(see Fig 7-33) Be sure to click on the Timeline ruler, and not within the Stream areas or on a Stream (Clip), because clicking in those locations will bring up an entirely different set of options
Trimming Assets in the Timeline
Beginning with DVD Studio Pro 2, you have the ability to trim the head and tail (the beginning point, and the end point, or duration) of any stream in the Track Editor Place the cursor at the beginning or end of any stream, and you will see the trim cursor reveal itself To Trim Streams using the cursor: Click on the stream s beginning with the Trim Cursor (see Fig 7-34) Drag to the right from there to trim the start point Remember that the V1 Stream must always begin at 1, so after any trim you make, V1 will always shuffle down so its first frame is aligned with 1
Figure 7-33 Control-Click on the timeline for Timecode mode selection
In each case, the current cursor position will be shown in the cursor time field, and in the Start or End field as well
NOTE! If you are trimming an encoded MPEG-2 asset, trims can only occur on GOP boundaries (I-frame headers) This is due to the DVD Spec, and cannot be changed This means the trim points are limited to the locations of the GOP sequence as encoded, not Compression marker locations (forced I-frames)