| 摘要 |
<p>A method for downloading a multimedia file from a server (101, 201, 300, 701) to a user device (100, 200, 400, 700), at least partly via a bandwidth limited connection (202, 702), a server and a user device adapted therefore. A user device, connected to a server selects a multimedia file to be downloaded via two bit streams. In the server the selected multimedia file is divided and coded into a first, low- quality part, and into a second, high-quality part (503). When certain conditions (505) set up for the first part are fulfilled, this part is streamed via a first bit stream (506), and when certain conditions set up for the second part are fulfilled, the second part is downloaded via a second bit stream (508). In the user device, the first part is received and reproduced (603b) as a limited version, available to be played-up in real time (604), while the second part is reproduced and combined with the first part (610, in order to yield the original multimedia file.</p> |
