Method and apparatus for modifying a data rate of a video signal
First Claim
Patent Images
1. A method for modifying a data rate of a video signal, comprising:
- receiving a compressed video signal;
providing a closed-loop transrating path for modifying a data rate of the video signal;
providing an open-loop transrating path for modifying the data rate of the video signal; and
selecting one of said open-loop transrating path or said closed-loop transrating path for modifying the data rate of at least a portion of said video signal.
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Abstract
Methods, apparatus, and systems for modifying the data rate of a video signal are provided. A compressed video signal is received. A closed-loop transrating path for modifying a data rate of the video signal and an open-loop transrating path for modifying the data rate of the video signal are provided. One of the open-loop transrating path or the closed-loop transrating path is selected for modifying the data rate of at least a portion of the video signal. Pixel quantization error control may be provided in the closed loop transrating path.
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Citations
30 Claims
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1. A method for modifying a data rate of a video signal, comprising:
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receiving a compressed video signal; providing a closed-loop transrating path for modifying a data rate of the video signal; providing an open-loop transrating path for modifying the data rate of the video signal; and selecting one of said open-loop transrating path or said closed-loop transrating path for modifying the data rate of at least a portion of said video signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. Apparatus for modifying a data rate of a video signal, comprising:
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means for receiving a compressed video signal; a closed-loop transrating path for modifying a data rate of the video signal; an open-loop transrating path for modifying the data rate of the video signal; means for selecting one of said open-loop transrating path or said closed loop transrating path for modifying the data rate of at least a portion of said video signal. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification