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Clipping Video

Overview

The Clip Creator tool creates an excerpt from a live channel or Video on Demand (VOD) content. The asset created from this clipping process is known as a clip. A clip may be played back as VOD content.

Quick Start

Create a clip by performing the following steps:

  1. From the CMS, select the desired live channel or VOD content.
  2. From the Details tab in the Editor panel, click Clip creator.
  3. From the Title option, define the clip's title.
  4. Define the video segment that will be clipped by setting start and stop markers.
  5. Click Create clip.

Clip Settings

Profiles

Profiles allow you to define a default configuration for each type of clip. Apply this default configuration to a clip by selecting the desired profile from the Clip Creator tool.

The settings that may be defined through profiles are listed below.

  • Metadata: Define a default set of metadata keys. Additionally, determine whether an external ID may be assigned to new clips through the Show External ID option in the Clipping Tool. option.
  • Third-Party Integrations: Automatically publish new clips to a third-party platform.
  • Overlays: Define the set of image overlays that will be available for selection and apply a default one to new clips.
  • Default Intro/Outro Bumpers: Define a default intro and/or outro bumper.
  • DRM: Determine whether a token will be required by default for new clips through the Require a token for playback on all new clips option.

Set up a new profile by performing the following steps:

  1. Navigate to the Clipping page by clicking the tab and then clicking the Clipping tab from the side navigation tab.
  2. Click + Profile.
  3. If a profile has been previously created, then you may copy it by clicking the Duplicate tab and then selecting the desired profile from the Clipping Profile to duplicate option.
  4. In the Clipping Profile Name option, assign a name to the clipping profile that will be created.
  5. Click Create.
  6. Define the desired default settings.
  7. Click Save.

Start/Stop Markers

You can define the exact segment of the live channel or VOD content that will be clipped through start and stop markers. Start and stop markers may be defined by selecting a playhead, frame, or an exact time.

Playhead

A playhead is a vertical line on the timeline that identifies a specific position in the video. A playhead may be used to define a clip's start/stop position. If the live channel or on-demand content is currently being played back from within the Clip Creator tool, then the playhead is constantly being updated to reflect the current position in the video being played back.

Set a clip's start/stop position by playhead by clicking Set Start or Set Stop. The start or stop marker will then be set to the time associated with the playhead at that moment in time.

Frame

Live channel or VOD content consists of a set of sequential video frames. The number of video frames within a specific second is known as the frame rate (frames per second). A clip's start/stop position may be set to a specific frame.

Select a frame by setting the By Time option to the exact second where the frame may be found, clicking Select Frame, and then selecting the desired frame from the available set of frames for the given time.

Exact Time

A clip's start/stop position may be defined or fine-tuned by setting the By Time option to the exact desired time/frame.

Format: hh:mm:ss;vf

Example: 00:30:20;01 represents the second frame at the thirty minute and 20 second mark.

Poster Image

A poster image is the image that is displayed by the media player until the video is started. By default, a clip's poster image is set to a frame at its halfway point.

A clip's poster image may be set through the Set Poster Image option. Set it to an image within the clip by selecting a playhead, frame, or an exact time. Alternatively, upload a custom image by clicking Upload Image from the Set Poster Image option. Finally, you may revert back to the default poster image by selecting "Use Default."

Once a poster image has been defined, a thumbnail preview will be displayed directly above the Set Poster Image option. Enlarge this preview by clicking on it. Alternatively, download it by clicking the download icon that appears directly to the right of the Set Poster Image option.

Effects

Various optional effects may be applied to a clipped video segment. The order in which these effects may be applied is outlined below.

Event Applicable Effect(s)
Start of Playback Intro Bumper
Start of Clipped Video
  1. Image Overlay
  2. Fade In
Near the End of Clipped Video Fade Out
End of Clipped Video Outro Bumper

Intro/Outro Bumpers

A video bumper typically consists of a brief announcement, logo, or a branded message that may be inserted before and/or after a clip. Bumpers inserted before a clip are known as intro bumpers, while those appended to a clip are known as outro bumpers.

Define a clip's intro/outro bumper by navigating to the Effects tab, marking either the Intro bumper or the Outro bumper option, and then selecting the desired clip.

Image Overlays

An overlay allows the display of a static image on top of a clip. The most common usage for an image overlay is to brand a video by displaying a logo.

An image must be uploaded as an overlay before it can be applied to a clip. Please note the following items before uploading an overlay:

  • An image overlay must use the PNG file format.
  • It is strongly recommended to use a transparent background.
  • It is strongly recommended to use an image whose resolution (e.g., 1920x1080) matches the clip's resolution. This best practice avoids the distortion or degradation of an image overlay when it is applied to a clip. It also makes it easier to position the relevant portion of the image overlay.
  • If the image's resolution matches the target clip's resolution, then positioning the relevant portion of the image overlay (e.g., logo) is easy. Simply place the relevant portion of the image (e.g., logo) in the desired relative position (e.g., lower right-hand corner). The system will proportionally scale the image to match the video's resolution when the image overlay is applied to it. This allows the desired content to maintain the same relative position when it is applied to the video clip.
  • Multiple image overlays may be uploaded. Support for multiple image overlays allows them to be tailored to meet varying resolution or branding requirements.

Images may be uploaded from the CMS by performing the following steps:

  1. Navigate to the Clipping page by clicking the tab and then clicking the Clipping tab from the side navigation tab.
  2. Select the desired profile or create a new one.
  3. Click + Overlay.
  4. From the Overlay name option, assign a descriptive name to the image overlay.
  5. Click Browse.... Browse to and select the desired image (PNG).
  6. Click Upload.
  7. Click Save. The newly uploaded image will now be available for selection during clip creation.

An image overlay may be applied to a clip from the Clip Creator tool by performing the following steps:

  1. Select a profile that contains the desired image overlay from the Profile option.
  2. From the Overlay option on the Effects tab, select the desired image overlay.
  3. Check how the image overlay will be positioned on the clip by clicking on the image overlay's thumbnail preview. This preview is displayed directly below the Overlay option.

Fade In/Out

A fade in/out effect may be applied to a clip. This effect gradually transitions from a black background to the clip or vice-versa. Define the duration, in seconds, of the fade effect from the Fade In or the Fade Out options on the Effects tab.

Metadata

Metadata allows supplemental data to be associated with a clip. This metadata may then be forwarded to your web site or custom player via the AssetInfo API.

By default, a new clip may be assigned an external ID through the External ID metadata key. This external ID may be leveraged when generating a friendly playback URL for the clip in question. Hide this external ID metadata key by clearing the Show External ID option in the Clipping Tool. option from the desired profile.

Additional metadata may be associated with a clip by defining custom keys. A custom metadata key may be one of the following types:

  • Text Field: By default, all metadata keys are text fields. This type of field allows metadata to be stored as a single line of text. Additionally, a default value for this metadata key may be applied to all new clips through the Default Key Value option.
  • Dropdown: A predefined list of values may be associated with a metadata key. This is known as a dropdown field. More information on dropdown fields is provided below.
    • Add values to a dropdown field by:
      1. Clicking + Key Value.
      2. Setting the Key Value option to the value that may be passed via the AssetInfo API.
      3. Setting the Display Name (optional) option to a user-friendly name.
      4. Clicking Add.
    • Reorder the values associated with a dropdown field by dragging and dropping a value to the desired position.
    • A dropdown field's default value varies according to whether the Include a 'No Value' option is marked.
      • Marked: By default, a value for this metadata key will not be assigned to this field. This means that a new clip will display "----No Value----" for this key.
      • Cleared: By default, all new clips will be assigned the first value listed under the Key Values & Order section for this key.
    • Allow users to set this key to a custom value by marking the Include a free form option option. This option will add the "(Other)" value to the dropdown field. Upon selecting this value, a text field will appear directly below the dropdown field. A user may then type the desired custom value in this text field.
    • A value cannot be directly modified. However, it can be deleted and a new one may be added in its place.
      • Delete a value by clicking the corresponding Delete label.

Add a custom metadata key to a profile by performing the following steps:

  1. Navigate to the Clipping page by clicking the tab and then clicking the Clipping tab from the side navigation tab.
  2. Select the desired profile or create a new one.
  3. Click + Metadata key.
  4. From the Key name option, define the name by which this metadata key will be identified.
  5. Click Add. The new key will appear in the Metadata section.
  6. Optional. Customize the metadata key by clicking on it and then applying the desired changes. For example, set a default value or even define a set of values that may be assigned to this key.
  7. Click Save to save your changes.

Metadata key values may be defined during the clip creation process from the Details tab within the Clip Creator tool.

Keyboard Shortcuts

Keyboard shortcuts are provided to facilitate setting start and stop markers. These shortcuts keys, which are listed below, are only available when the timeline has the focus.

Action Key More Information
Play/Pause SPACE
Pause k
Jump Back j Jumps back up to 8 seconds to the start of a previous slice.
Jump Forward l Jumps forward 4 seconds.
Jump to Start Marker UP ARROW Jumps to 3 seconds prior to the time defined in the start marker.
Jump to Stop Marker DOWN ARROW Jumps to 3 seconds prior to the time defined in the stop marker.
Set Start Marker i Sets the start marker to the time associated with the playhead at that moment in time.
Set Stop Marker o Sets the stop marker to the time associated with the playhead at that moment in time.
Refine Start Time Marker LEFT ARROW Allows the clip's start position to be set to a specific video frame. This shortcut is the equivalent of clicking the start marker's Select Frame.

The following keyboard shortcuts are available when selecting a frame:

  • LEFT ARROW: Navigates to the previous video frame.
  • RIGHT ARROW: Navigates to the next video frame.
  • ENTER: Sets the current video frame as the clip's start position.
  • ESC: Closes the Refine Start Time dialog box without making any changes.
Refine Stop Time Marker RIGHT ARROW Allows the clip's stop position to be set to a specific video frame. This shortcut is the equivalent of clicking the stop marker's Select Frame.

The following keyboard shortcuts are available when selecting a frame:

  • LEFT ARROW: Navigates to the previous video frame.
  • RIGHT ARROW: Navigates to the next video frame.
  • ENTER: Sets the current video frame as the clip's stop position.
  • ESC: Closes the Refine Stop Time dialog box without making any changes.
Zoom In (Timeline) + or = Zooms in to the timeline in 10% increments. This will cause the visible area of the timeline to display a shorter time range.

Use the scroll bar directly below the timeline to scroll to the beginning or the end of the video.

Zoom Out (Timeline) - Zooms out of the timeline in 10% increments. This will cause the visible area of the timeline to display a longer time range.

Clip Playback

By default, creating a clip will add it to the library as VOD content. Similar to all other VOD content, this new VOD asset may be:

  • Played back using a custom player.
  • Leveraged as replacement content.
  • Scheduled in a linear channel.
  • Prepended/appended to another video clip as an intro/outro bumper.

Third-Party Platform Integration

The Clip Creator tool supports the capability to automatically publish a clip to a third-party platform (e.g., Kaltura or Lakana). Upon creating a clip, it will be pushed to the third-party portal. This capability allows fast and easy integration with a custom video player.

Setup

Integration with a third-party platform consists of defining authentication information and then mapping key data to third-party platform fields. Once integration settings have been defined, new clips will automatically be published to the third-party platform.

Add a third-party platform integration to a profile by performing the following steps:

  1. Navigate to the Clipping page by clicking the tab and then clicking the Clipping tab from the side navigation tab.
  2. Select the desired profile or create a new one.
  3. Click + Integration.
  4. From the Integrations section, mark the desired third-party platform and then click Add.
  5. Under Integrations, click on the desired third-party platform name.
  6. Under the Credentials section, provide the credentials required to authenticate to the third-party platform.
  7. From the Metadata Mapping section, map third-party platform fields to metadata keys.
  8. Click Save to save your changes.

Authentication

The capability to upload content to a third-party platform requires authorization. Typically, this involves defining a user name, password, and a key through which content will be uploaded to the third-party platform.

Metadata Mapping

Clip-specific information may be leveraged when publishing content to a third-party platform. This capability facilitates content management and automated workflow by leveraging relevant information when defining critical properties for newly published content.

A prerequisite for metadata mapping is the creation of custom metadata keys. After which, metadata keys should be assigned to third-party platform fields from within your third-party platform integration configuration.

Export Restrictions

Each platform enforces minimum requirements on the videos that may be uploaded to their service. Our service adheres to these platform-specific requirements and enforces the applicable ones when exporting clips to a platform. Please ensure that the requirements listed below are satisfied before exporting a video clip to the platform in question.

Platform Restriction
Twitter
  • File Size: A clip's file size cannot exceed 15 MB.

    The following factors affect a clip's file size:

    • Source video's resolution
    • Source video's dimensions
    • Clip's duration
  • Duration: A clip's duration must fall between 0.5 and 30 seconds.
  • Dimensions: A clip's dimensions, as determined by the source video, must fall within the following range: 32 x 32 and 1280 x 1024.
  • Aspect Ratio: A clip's aspect ratio, as determined by the source video, must fall within the following range: 1:3 and 3:1.
  • Frame Rate: A clip's frame rate, as determined by the source video, should be 40 FPS or less.
  • Audio: A clip's audio, as determined by the source video, should either be mono or stereo.
Facebook The maximum transfer rate at which clips are uploaded is 1 GB per 20 minutes