FLV and F4V files contain only pixel-based (rasterized) video, not vector graphics, and they aren’t interactive.

The FLV and F4V formats are container formats, each of which is associated with a set of video and audio formats. FLV files generally contain video data that is encoded using the On2 VP6 or Sorenson Spark codec and audio data encoded using an MP3 audio codec. F4V files generally contain video data that is encoded using an H.264 video codec and the AAC audio codec.

You can play a movie in an FLV or F4V container file in many different ways, including the following:

• Import the file into the Flash Professional authoring application and publish the video in a SWF file.

• Play the movie in the Adobe Media Player (AMP).

• Preview the movie using Adobe Bridge.

After Effects markers can be included as cue points in an output FLV or F4V file. To transfer keyframes or global property values into the Flash Professional authoring application from After Effects, run the Convert Selected Properties To Markers.jsx script before rendering and exporting an FLV or F4V file.

You render and export a movie to the FLV or F4V container format using the render queue, just as you do with other formats. (See Render and export a movie using the render queue.)

To include the alpha channel in the FLV output, use the On2 VP6 codec and select Encode Alpha Channel in the Video tab of the export settings dialog box.

When you render and export a composition to the F4V or FLV format from a 32-bpc project, the rendering of colors with values under 0 and over 1 does not produce results that preserve the appearance of the composition in After Effects. To avoid unexpected results, you can work in an 8-bpc or 16-bpc project when creating a composition that you intend to render and export to F4V or FLV format. Alternatively, you can work in a 32-bpc project, render and export the composition to another format, and then convert the output file to F4V or FLV.