[videoRx]

I'd like to know if it's possible to modify the header (or metadata or specific atom) of an H.264/AAC MP4 file to alter the perceived bitrate. For example, if the reported bitrate (MediaInfo, QuickTime property inspector, etc) is 1000Kbps, I'd like to change it to another arbitrary value such as 2000Kbps. I don't need to influence playback in conventional desktop apps--it's purely for an ingest mechanism on a streaming media server (Wowza) for combined playlists where there's a mixture of low and high bitrate MP4 files and I want to low bitrate MP4 files to appear to have the same bitrate as the high bitrate MP4 files.

If this is possible, I'd appreciate any reference to a command line interface (mp4box, mp4creator, atomicparsley) that's capable of changing this value [or collection of values to "add up" to the total bitrate]. So far, all the examples I'm finding online are specifically for ID3 metadata tags (artist, title, etc), width, height, and framerate.

Many thanks in advance!