Overlay Flash

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  1. Overlay Fashion
  2. Flashback Overlay
  3. Steam Overlay Flickering
  4. Camera Flash Overlay
  5. Overlay Flash Video

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Note: These instructions are for ActionScript projects. For Flex projects, see Overlay AIR SDK on Flex SDK | Flash Builder.

If you want Flash Builder to use a different version of the AIR SDK for ActionScript projects, overlay the preinstalled AIR SDK version with the version that you want to use.

The instructions below reference how to overlay the 3.4 version of the AIR SDK with the latest available AIR SDK version. The instructions, however, are general. You can follow these instructions to overlay any version of the AIR SDK in Flash Builder.

Visit Adobe Gaming website for latest news, SDK, tools, documentation, and sample code.

Prerequisites for updating the AIR SDK in Flash Builder

  • Download Adobe AIR SDK & Compiler from the download page and save it to the local system.
    Alternatively, download the appropriate AIR SDK & Compiler for your operating system from AIR SDK versions document.
  • Exit Flash Builder before following the steps to update the AIR SDK.
  1. (Optional) Backup the AIR SDK by copying the entire directory.

    In Flash Builder, for example, copy the AIRSDK directory at:

    • Windows 7: C:Program Files (x86)AdobeAdobe Flash Builder 4.7eclipsepluginscom.adobe.flash.compiler_4.7.0.349722
    • Mac OS: /Applications/Adobe Flash Builder 4.7/eclipse/plugins/com.adobe.flash.compiler_4.7.0.349722
  2. After taking a backup of the AIR SDK, delete all the content in the AIRSDK folder.

  3. Extract the contents of the downloaded AIR SDK zip/dmg file into the now empty AIRSDK folder.

    • Windows: Right-click the ZIP file and select Extract All, or use a decompression tool of your choice.
    • Mac OS: In Terminal, run these commands:
      • hdiutil attach AIRSDK_Compiler.dmg
      • cp -rf /Volumes/AIR SDK/* /path-to-empty-AIRSDK-directory

    Note: If you have trouble overwriting files on Mac OS due to file permissions, try these commands:

    • sudo hdiutil attach AIRSDK_Compiler.dmg
    • sudo cp -rf /Volumes/AIR SDK/* /path-to-empty-AIRSDK-directory
  4. (Applicable only for AIR versions earlier than 3.6) Copy the contents from the aot folder (AIRSDK_back_uplibaot) of the AIR SDK backup to the aot folder of the newly created AIR SDK (AIRSDKlibaot).

  5. After updating the SDK, update the AIR namespace in the project's application descriptor to the correct version.

    For example: <application xmlns='http://ns.adobe.com/air/application/3.4'> to <application xmlns='http://ns.adobe.com/air/application/3.7'>

Note:

Overlay Fashion

See AIR Release Notes for the latest updates.

Overlay Flash


In this topic you will learn to use the Overlay plugin and how it can be implemented in Studio and through custom coding. The overlay plugin can be used to display simple messages as a semi-transparent overlay on top of the player.

Overview

You can control the display of the overlay message based on:

  • Player events - such as play, pause or custom events
  • Time interval - at a specified time during video playback

The sample video below demonstrates the use of the Overlay Plugin. An overlay will appear on start as well as different time periods, one starting at five seconds. Start and pause the video to see the overlay react to those events.

This topic contains the following sections:

Implement using Players module

To implement the Overlay Plugin using the Players module, follow these steps:

  1. Open the PLAYERS module and either create a new player or locate the player to which you wish to add the plugin.
  2. Click the link for the player to open the player's properties.
  3. Click Plugins in the left navigation menu.
  4. Next click Plugins from the three options.
  5. From the Add a Plugin select Custom Plugin.
  6. For the Plugin Name enter overlay.
  7. For the JavaScript URL, enter:
  8. For the CSS URL, enter:
  9. Enter the configuration options in the Options(JSON) text box. The example below will display an anchor at the bottom of the player starting at the 2 second mark and ending at the 6 second mark.
  10. Check to be sure the form appears as follows:
  11. Click Save.
  12. To publish the player, click Publish & Embed > Publish Changes.
  13. To close the open dialog, click Close.

Implement using code

To implement the plugin using custom code, you will configure the following plugin properties:

  • scripts - JavaScript supplied for the plugin and will not change for different plugin implementations
  • stylesheets - CSS supplied to you for the plugin and will not change for different plugin implementations
  • plugin name - Always overlay
  • plugin options - Contains an array of properties and values

To add the plugin to your code, follow these steps:

  1. Add the overlay plugin default style sheet. You can use the default style sheet, or create your own styles.
  2. Add the videojs-overlay.js script file to include the overlay plugin. This plugin will automatically register itself when included in your page. Note: This plugin script must be placed after the last <script> tag for your player embed code.
  3. Get a reference to the Brightcove Player. In this example, we are creating a variable named myPlayer and assigning it a reference to the player.

    To display an overlay message, use the options property to pass data to the plugin. This example shows how to include 3 overlay messages:

    • First overlay:
      • This is displayed when the play event is dispatched and is hidden when the pause event is dispatched.
    • Second overlay:
      • This is displayed when the video playback passes 5 seconds and is hidden when the video playback passes 10 seconds.
      • This is positioned in the bottom right corner of the player.
    • Third overlay:
      • This is displayed when the video playback passes 12 seconds and is hidden when the video playback passes 17 seconds.
      • This is positioned in the bottom left corner of the player.
      • Since this overlay does not have a content option defined, it uses the default value of Default overlay content, defined before the overlays array.

    If you include the overlay script in your code, you can define messages as follows:

Flashback Overlay

Options

Overlay Flash

The following plugin options are used to control the overlay object:

OverlayFlash
  • align:
    • The value must be a supported string value.
    • This defines where to show the overlay. If you include the default stylesheet, the following values are supported: top-left, top, top-right, right, bottom-right, bottom, bottom-left, left.
  • attachToControlBar:
    • The value can be a string or boolean. If the value is a string, the value must be the name of a ControlBar component.
    • If set to true or a string value, bottom aligned overlays will adjust positioning when the control bar minimizes. This has no effect on overlays that are not aligned to bottom, bottom-left, or bottom-right. The option is for use with the default control bar, and may not work for custom control bars. Bottom aligned overlays will be inserted before the specified component. Otherwise, bottom aligned overlays are inserted before the first child component of the ControlBar. All other overlays are inserted before the ControlBar component.

    • The option can set for all eligible alignments by using it at the top level:

      Or for individual overlay objects:

      A top level setting can be overridden by option use on individual overlay objects.

    • The visual impact can be seen in these screenshots:
  • class:
    • A custom HTML class to add to overlay elements. You define the style as you would any class selector, with the exception that you must use the .video-js selector along with the selector you choose (the specificity must be increased so the style is not overridden):
    • The option can set for all eligible alignments by using it at the top level:

      Or for individual overlay objects:

      A top level setting can be overridden by option use on individual overlay objects.

  • content:
    • The value can be a string or DOM object.
    • This is the HTML that will be contained in the overlay. You can pass in a string, an HTML element or a DOM DocumentFragment.
    • The default value is the string This overlay will show up while the video is playing.
    • This option can be set at the top level, or for individual overlay objects.
  • end:
    • The value can be a string or number.
    • This defines when to hide an overlay. If the value is a string, it is interpreted as an event name. If it is a number, the overlay will be hidden when that time (in seconds) in the video playback has passed. If the value is a string, it is interpreted as a Brightcove Player event name, like play, pause or ended. A list of all player events is located in the Player API.
  • overlays:
    • An array of overlay objects.
    • An overlay object should consist of at least an start and end option. Other options used as desired.
  • showBackground:
    • The value is boolean.
    • Determines whether or not to include background styling & padding around the overlay. This setting can be overridden by being set on individual overlay objects.
  • start:
    • The value can be a string or number. This defines when to show an overlay.
    • If it is a number, the overlay will be displayed when that time (in seconds) in the video playback has passed.
    • If the value is a string, it is interpreted as a Brightcove Player event name, like play, pause or ended. Here are some helpful links:
    • Here's an example that displays overlay text before the video starts playing:

You can use any event dispatched from the player, which are defined in the Player Methods/Events API document, or you can use your own custom events.

All of these properties are optional, but you may get strange results if you don't include at least the start and end properties.

Styling the overlay

Two styles could be helpful for you when working with the overlay. They are detailed here.

Hide the background

The following CSS will hide the background:

Hide the overlay

The following CSS will hide the background:

Both of these styles are helpful in the Brightcove Player Sample: Toggling an Overlay document.

Display video metadata

Steam Overlay Flickering

You may wish to display information about the video in the overlay. For instance, display some message from one of the video's custom fields, before the video starts to play, as shown in the screenshot below.

The following section explains how to do that particular task, but moreover, once you have data from the mediainfo object, any video metadata could be displayed whenever you choose.

  • Line 112: Include the CSS for the overlay plugin.
  • Lines 113-124: CSS to perform the following:
    • Change the size of the player
    • Set the font size and color for the message
    • Set the width of the overlay
    • Change the background-color of the overlay
  • Lines 128-135: Standard in-page embed code used. Note an id is added.
  • Line 136: Specify the source for the JavaScript code for the overlay plugin.
  • Lines 139,140,152: Standard setup for using code with the player.
  • Lines 141,151: Use the on() method to add an event listener for the loadstart event. In the anonymous event handler function you can act upon the video in the player, like mute it and use information from the mediainfo object.
  • Lines 143,150: Call the overlay() method.
  • Lines 144-149: Define a single overlay using the content to display message stored in the custom field, using the JavaScript variable myPlayer.mediainfo.customfield1. The overlay will display once the video is loaded ( start: 'loadedmetadata') and disappear once the video starts (end: 'play').

Camera Flash Overlay

Changelog

Overlay Flash Video

See the changelog here.

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