BUFFERING OF VIDEO STREAM DATA
First Claim
1. Device for buffering a video stream comprising intra frames and inter frames, wherein the device comprising a buffer memory (12) being segmented in two parts, a contiguous part (13) for buffering of contiguous frames of the video stream, and an intra part (14) for the buffering of intra frames of the video stream.
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Accused Products
Abstract
Buffering of a video stream containing intra frames (I-frames) and inter frames (P-frames, B-frames) is disclosed. A buffer memory is segmented in two parts, a contiguous part for buffering of contiguous frames of the video stream (I-, P- and B-frames), and an intra part for the buffering of intra frames of the video stream. A decoding of the video stream may under normal conditions be done on data read from the contiguous part of the buffer, whereas the decoding of the video stream in a buffer-underrun situation may be done on data read from the intra buffer
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Citations
12 Claims
- 1. Device for buffering a video stream comprising intra frames and inter frames, wherein the device comprising a buffer memory (12) being segmented in two parts, a contiguous part (13) for buffering of contiguous frames of the video stream, and an intra part (14) for the buffering of intra frames of the video stream.
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9. System for preparing video signals, the system comprising:
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a stream handling section (I) for handling a received an encoded video stream comprising intra frames and inter frames, and for providing the video stream to a buffer section (12), a buffer section (12), including a buffer, for handling the buffering of the video stream, a decoder (10) for decoding the video stream, an output section (0) for outputting the decoded video stream, and a controller (C) for controlling the interoperability of the system wherein the buffer (12) is segmented in two parts, a contiguous part (13) for buffering of contiguous frames of the video stream, and an intra part (14) for the buffering of intra frames of the video stream.
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11. Data stream in a buffer-underrun situation (26), the data stream being based on a normal situation data stream (25) comprising intra frames and inter frames, wherein the buffer memory being segmented in two parts, a contiguous part for buffering of contiguous frames of the normal situation video stream, and an intra part for the buffering of intra frames of the normal situation video stream, and wherein the data stream in the buffer-under run situation (24) only comprises frames from the intra buffer.
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12. Method for managing a buffer memory for a video stream comprising intra frames and inter frames, wherein the buffer memory being segmented in two parts, a contiguous part for buffering of contiguous frames of the video stream, and an intra part for the buffering of intra frames of the video stream.
Specification