CHANNEL LINE BUFFER DATA PACKING SCHEME FOR VIDEO CODECS

摘要

Video pixel line buffers are widely used for data processing in video codecs. Video data may be packed into buffers configured to store a plurality of words, each word comprising a series of bits. The video data may be associated with two or more channels. In order to reduce realization costs, data blocks from two different channels may be packed from opposite sides of a word in the buffer in opposite directions. In some embodiments, data blocks from two or more physical channels may be mapped to two or more virtual channels, the virtual channels having balanced data block sizes. The data blocks associated with the virtual channels may then be packed to one or more buffers.

主权项

1. A method operable by a video coding circuit for packing video data, comprising:
receiving the video data via a first channel and a second channel, the video data comprising a plurality of data blocks; and packing the plurality of data blocks into a buffer shared by the first and second channels, the buffer configured to store a plurality of words, each word comprising a series of bits that extends between a first side and a second side of the word, wherein the packing further comprises interleaving data blocks from the first channel with data blocks from the second channel via:
packing the data blocks from the first channel in a first direction from the first side toward the second side; andpacking the data blocks from the second channel in a second direction that is opposite of the first direction.