Apparatus and methods for presentation of key frames in encrypted content
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United States of America Patent
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May 12, 2020
Grant Date -
Jan 11, 2018
app pub date -
Jul 7, 2016
filing date -
Jul 7, 2016
priority date (Note) -
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Abstract
Apparatus and methods for presentation of key frames. In one embodiment, an encoded video file is generated where one or more bits are assigned to key frames and minimizes the number of bits assigned to delta frames. Each key frame may be presented to a user during trick mode operation (e.g., fast forward, rewind, pause, or random seek operation). When the encoded video file is given to a packager, the packager generates a manifest file listing the byte information (byte offset and number of bytes) for each key frame in the encoded video file. When a user inputs a trick play mode command, the packager provides the manifest file to the client device of the user and the client device requests the bytes for the key frames of the video file from the content delivery network.
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