VBrick Systems Portal Server ETV v4.2 Podręcznik Użytkownika Pobierz pdf (Strona 31)

Using the Portal Server

ETV Portal Server User Guide 25

Playlists

Playlists are saved in the Asset Library. A playlist is a mechanism to consolidate

multiple video files, or video file segments, regardless of format, into a virtual file. A playlist

is a list of video streams, or parts of streams, that can be played as if they were a single video

file. Playlists can include files encoded in different formats and at different bit rates including

MPEG-1, MPEG-2, MPEG-4, and WM (Windows Media). Playlists have a special icon and

are only created from stored streams. They are not available with live streams and they are

not available when multiple windows are displayed. (Playlists and bookmarks are supported

on WM IP Receivers; they are not supported on standard set top boxes or Amino set top

boxes.)

You create a playlist from the

Playlists page and they can be saved under any name and

played back later. They can also be modified, re-ordered, or changed in a variety of ways as

explained below. Playlists can only be played in realtime. They cannot be scheduled in the

Portal Server to run at a later time. Bookmarks are slightly different. A bookmark is simply a

pointer to a specific location in a file or to an entire file. In general, you can think of a

bookmark as a playlist with a pointer to one segment in a video. You create bookmarks using

the

Mark button in the preview window. For more information, see Creating Bookmarks on

page 19. Note that if the computer you are using to access a playlist does not support a

certain encoding type, a bookmark to that item in the playlist will not be displayed.

Playlists are saved by default in the MyMedia folder.

MyMedia folder is automatically created for each

defined user and is available and viewable only to the

user who is currently logged in. If Access Control is

enabled, each user has their own

MyMedia folder

which no one else can access. If Access Control is not

enabled, everyone's playlists are stored in

MyMedia.

T To run an existing playlist:

1. Click on the

Asset Library and navigate to the

MyMedia folder or to any folder that has a playlist.

2. Click on any item with a playlist icon to launch the

playlist in the preview window.

3. Use the

Previous and Next buttons to move up

and down the playlist. (Use the

Forward and

Rewind buttons to navigate to the beginning or

end of the clip in progress—not to the beginning

or end of the playlist.)

There may be a slight delay between clips—this is

normal Portal Server behavior as the video loads. If

any content in a playlist is unavailable for any reason (for example the file was moved or the

content expired), the Portal Server will skip that clip, advance to the next clip, and display an

informational message. below the preview window. As explained below, there are two ways to

create playlists. You can quickly bookmark a stream playing in the preview window using the

Mark button; this creates a playlist with one bookmark. You can also create a playlist from the

Playlists page. This is the standard way to create a playlist.

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