| 摘要 |
The invention provides for a download agent executing on a computing device to dynamically select between media files with different media quality for delivery of media content provided by a media content provider. The download agent may select between different media files with similar content but different quality based on a playback rate of the media file, the resolution of the media file, or the encoding scheme of the media file. The download agent may seamlessly transition from one media file to another media file at key frames to avoid any motion artifacts and to avoid requiring a user to restart the media file.
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