Apple Compressor 2 Bedienungsanleitung PDF herunterladen (Seite 150)

150 Chapter 10 Creating MPEG-2 Output Files

4 Decide whether you want the GOP pattern to be open or closed and click the

appropriate button.

Note: For all HD MPEG-2 formats, the GOP structures are closed.

See “Understanding GOPs and Frame Types” on page 140, “Things to Consider When

Choosing a GOP Setting” on page 140, or “GOP Tab” on page 138 for more information

about GOPs.

Step 4: Choose Extras settings

You can control the inclusion or exclusion of specific MPEG-2 authoring information in

the Extras tab.

1 Click the Extras button in the MPEG-2 Encoder pane to open the Extras tab.

Working With MPEG-2 I-Frames

The Compressor Preview window offers additional MPEG-2 transcoding flexibility by

allowing you to manually insert I-frames into your output MPEG-2 file at any frame

location, regardless of your chosen GOP pattern and size. These are known as forced

I-frames, and may be useful for improving the quality of the MPEG-2 file in the vicinity

of the scene change. See “Understanding GOPs and Frame Types” on page 140 for

more information on I-frames.

In addition, adding I-frames to your clip allows you to create chapter markers that

DVD Studio Pro can understand and use. See “Adding Markers to a Clip” on

page 220 and “Adding DVD Studio Pro Chapter Markers to a Clip” on page 222

for more information.

1 2 ... 145 146 147 148 149 150 151 152 153 154 155 ... 262 263

Keine Kommentare

Apple Compressor 2 Bedienungsanleitung Seite 150