Adobe Flash Professional CS6 Adobe Flash Professional CS6 Classroom In A Book | Page 332

Transparencies in video (called alpha channels) are supported only in the FLV for-
mat using the On2 VP6 codec. When encoding a video with an alpha channel from
Adobe Media Encoder, be sure to choose Edit > Export Settings, click the Video
tab, and then select the Encode Alpha Channel option.
You’ll import the video file, which is already in FLV format, into Flash for display
with the playback component.
importing the video clip
Now you’ll use the Import Video wizard to import the Popup.flv file, which has
already been encoded with an alpha channel.
1 Insert a new layer called popupvideo.
2 Insert a keyframe at frame 50 and insert another keyframe at frame 86.
You’ll place the video of the zoo director at the end of the musical introduction
at the same time the stop action appears (frame 50). The keyframe at frame 86
ensures that the video of the zoo director disappears from the Stage when the
animal videos appear.
3 Select the keyframe at frame 50.
4 Choose File > Import > Import Video.
5 In the Import Video wizard, select On Your Computer and click Browse. Select
the Popup.flv file in the Lesson08/08Start folder and click Open.
6 Select Load external video with playback component. Click Next or Continue.
7 Select the same skin that you’ve been using from the Skin menu and click Next
or Continue.
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