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The Other Profile Class allows you to create the following types of profiles:
This section includes the following topics:
Adding an Index Profile to a Job Profile is optional. Scene change detection is a separately licensed feature of the Cisco MXE 3500.
The Index Profile is used to define parameters that specify how to perform scene change detection, whether to capture thumbnail images as representative samples of the scene changes, as well as the format, size, and quality of the thumbnail image(s). See also: Introduction to the Thumbnail Profile.
An Index Profile allows you to adjust the following settings:
Figure 10-1 shows Common settings. Table 10-1 describes the settings.
Figure 10-1 Index Profile: Common Settings
Figure 10-2 shows Scene Change Detection settings. Table 10-2 describes the settings.
Figure 10-2 Index Profile: Scene Change Detection Settings
Figure 10-3 shows Thumbnail Properties settings. Table 10-3 describes the settings.
Figure 10-3 Index Profile: Thumbnail Properties Settings
Step 1 From the Toolbox, click Profile Management > New Profile or Open Profile.
Step 2 From the Profile Class drop-down, select Job, and click the New Profile or Open Profile button.
Step 3 Expand the Encoding section, and scroll down to the Index box.
Step 4 Highlight one or more individual Index Profiles. As they are selected, the Index Profiles are added to the Job Profile in the upper pane.
This section includes the following topics:
Use a Thumbnail Profile to set up thumbnail images, specify their format, and specify the conditions for capturing them. Thumbnails are basically images from single frames of video. Despite the name, you may set the images to any size. The Thumbnail Profile also allows you to set up periodic thumbnail captures. See the “Index Profile” section if you want to trigger thumbnails on scene changes.
Thumbnails are placed in a subfolder of the Thumbnail Output Directory. All the thumbnails from one encoding job will be held in a subfolder. The subfolder is named according to the Cisco MXE 3500 naming conventions for output files. For example, if the output name is $(basename).$(profile).$(subprofile).$(extension), the thumbnail subfolder will be named $(basename)_$(profile)_$(subprofile)_tmb with the periods converted to “_” and the $(extension) converted to “_tmb”.
The subfolder will contain a text file with an.index extension that contains a list of the thumbnail files and times (measured from the beginning of the video clip) where the thumbnails were captured.
The thumbnail files themselves are named 0000.ext, 0001.ext, 0002.ext, … etc, where “ext” is one of the allowed graphics formats. See also: Image Format in Thumbnail Properties (Index Profile).
The OLD convention uses the Cisco MXE 3500 naming convention to name each thumbnail file. So, the example above produces a thumbnail named: $(basename)_$(profile)_$(subprofile)0000.ext instead of 0000.ext.
The Thumbnail Profile is used to define parameters that specify when to capture thumbnail images, as well as the format, size, and quality of the thumbnail image(s). A Thumbnail Profile allows you to adjust the following settings:
Figure 10-4 shows common settings. Table 10-4 describes the settings.
Figure 10-4 Thumbnail Profile: Common Settings
Figure 10-5 shows Frame Selection settings. Table 10-5 describes the settings.
Figure 10-5 Thumbnail Profile: Frame Selection Settings
Note Any or all of the above options can be used together in the profile.
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Check this box to capture thumbnails within the period entered in the field below. The default period is 10 seconds, meaning that every ten seconds an image is captured. The number of images captured depend on the length of the video clip, and will be approximately (Clip Length)/(Thumbnail Period). |
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When the Use Thumbnail Frequency box is checked, the time in this field determines the spacing between captured images. If the time of a requested thumbnail does not match the time of any video frame, the nearest frame is selected. The time must be greater than zero. |
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Check this box to enable the capture of a fixed number of thumbnails per clip. The fixed number is identified in the Thumbnail Number field. You may use any number except zero. The spacing between thumbnails depends on the length of the video clip, and will be approximately (Clip Length)/(Number of Thumbnails). |
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When the Use Thumbnail Number box is checked, the number in this field determines the number of thumbnails to be generated during the video clip. The thumbnails are equally spaced across the clip (except for irregularities caused by rounding to the nearest video frame). This may not represent the total number of thumbnails captured if other checkboxes enable other methods of requesting thumbnails. The number must be greater than zero. To figure out which frames are captured: Divide the length of the video by the number of thumbnails, and multiply by the frame rate. The thumbnail image will be taken at the center of the interval rounded down to the nearest frame. Example: 5 thumbnails taken from a 60 second video @ 30 fps will result in thumbnails taken at 6 seconds (frame 180), 18 seconds (frame 540), 30 seconds (frame 900), 42 seconds (frame 1260), and 54 seconds (frame 1620). |
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Check this box to enable the capture of a single thumbnail image at the time specified in the Thumbnail Time box on the File Job Submission page. These submission parameters are intended to be set on a per-submission basis, and are not saved in the profiles. See also: File Job. |
Figure 10-6 shows Thumbnail Properties settings. Table 10-6 describes the settings.
Figure 10-6 Thumbnail Profile: Thumbnail Properties Settings
Step 1 From the Toolbox, click Profile Management > New Profile or Open Profile.
Step 2 From the Profile Class drop-down, select Job, and click the New Profile or Open Profile button.
Step 3 Expand the Encoding section, and scroll down to the Thumbnail box.
Step 4 Highlight one or more individual Thumbnail Profiles. As they are selected, the Thumbnail Profiles are added to the Job Profile in the upper pane.