Protecting video as it is decoded by a codec
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United States of America Patent
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Jun 4, 2013
Grant Date -
N/A
app pub date -
Apr 27, 2010
filing date -
Apr 27, 2010
priority date (Note) -
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Abstract
In one aspect, a method includes: obtaining compressed video content within a video content processing module, a portion of a document structure of the compressed video content conforming to a predefined codec, the portion of the document structure including a plurality of video frames; decrypting the compressed video content in accordance with a digital rights management data encryption applied to the compressed video content; adding information in an extension frame associated with a portion of the document structure; and applying an encoding technique to content of one or more of the plurality of video frames after the decrypting, wherein the extension frame flags the applied encoding technique; and providing the compressed video content, including the encoded content, to a media player including a codec conforming to the predefined codec.
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