17-2
UserGuide for Cisco Digital Media Manager5.4.x
OL-15762-05
Chapter17 Media Assets and Embedded Software
Concepts
User Permission Restrictions•
To see and use the Media Library, you must be logged in with at least read-only permissions for at
least one category.
•
The “ftp” user account on a DMP has limited access to the DMP file directory structure. It cannot
navigate to any higher level than /tmp/ftproot. This is by design (CSCsq49612).
Media Restrictions•
Audio-Video Sync on a DMP 4305G, page 17-2
•
Misidentified Codecs Can Trigger a Gray Screen, and Then Restart a DMP 4310G, page 17-2
•
Component Signal Cables Prevent DMP 4310G Playback of 1080p60 Video, page 17-3
•
SDP Support and Restrictions, page 17-3
•
Shockwave Flash (SWF) Support and Restrictions, page 17-4
•
MP3 Support and Restrictions, page 17-4
•
MPEG-4 Support and Restrictions, page 17-4
•
Bitmapped/Raster Image (JPG, GIF, PNG) Support and Restrictions, page17-4
•
URL and Website Support and Restrictions, page 17-5
Audio-Video Sync on a DMP4305G
•
In some cases, after a DMP4305G p lays a multicast video stream for 24 hours, audio and video from
the stream are no longer perfectly synchronized. (CSCsy37539; CSCty77956)
•
When a DMP 4305G is restarted, video playback might begin even before the DMP has cleared its
splash screen (CSCtb48195). Although audio plays correctly in this case, the lingering splash
screen hides a video temporarily.
Tip You can use DMPDM to shorten the splash screen duration.
Misidentified Codecs Can Trigger a Gray Screen, and Then Restart a DMP4310G
A misconfigured or malfunctioning encoder might output video in which the PMT table names a
different codec than was used. When you then try to play this asset through a DM P 4310G, the DMP
might restart suddenly after rendering only a gray screen on your digital sign (CSCth61274).
Tip You can use free or open source software—such as MediaInfo ( see http://mediainfo.sourceforge.net/en)— to check
if the PMT table is wrong. If so, you can use other tools to re-encode or transcode the video properly for playback.