Create a software that interfaces with a video file

I need an application that will be in two parts: 1. A horizontal slider that appears below any video playing on the Web in a major format (Flash, Quicktime, etc) and allows a viewer to slow down or speed up the video in a range from 0.3x to 5.0x speed with minimal distortion of audio (not high-pitched like a chipmunk when sped up). Slider will also have a 1x button that takes video instantly to 1x when clicked and back to the previous speed when clicked again. Slider would display the speed as text (i.e. Play speed: 1.3x) 2. A set of three urls - "slow", "normal" and "fast" - that appear beneath any video playing, that would instantly play the speed at 0.5x (slow), 1.0x (normal) and 1.4x (fast) when the links are clicked. This is an application I would be able to put on my Linux server, but should work on Windows, too, in case I switch servers. It would allow me to upload a video into an interface (that you create for this). It would include, at my option, slider and/or speed links beneath the video -- selectable via radio buttons (+slider, +links, +both). It would have a nice, clean, modern GUI. Videos that have their speed altered must not: - Experience noticeable lag-time (dropping of frames) - Experience heavily distorted audio - Put a load on the CPU or RAM of my server or end-user's computer Must work on PC or Mac, all major operating systems, and for all major browsers. Must be on or under my budget.