When the Multi-Channel Server (MCS) encounters an image that should be converted by MAP, it includes a device-specific image tag specifying the URL of the MAP component. The URL also specifies where to find the image (or any media such as audio or video) to be transcoded and the transcoding rule to apply when converting the image to a format that is supported by the mobile device.
MAP functions in two operational modes: MAP and ICS.
Figure 1. MAP request flow
- When the mobile device's browser requests an image that should be transcoded, the device sends a request to the MAP component (operating in either MAP or ICS mode).
- Using the image path and server information in the URL, and information from the MAP configuration file, the MAP component retrieves the original image from the image server. MAP uses the transcoding rule and any transcoding parameters included in the URL to transform the image.
- The MAP component returns the transcoded image to the mobile device.
For additional information about MAP, refer to the Media Access Proxy
section in the Multi-Channel Server information center plug-in.
Parent topic: How requests flow through Mobile Portal Accelerator
Media Access Proxy section (in the MCS information center plug-in)