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SYSTEMS AND METHODS FOR LOW-COMPLEXITY NEAR LOSSLESS FIXED-RATE HYBRID DATA COMPRESSION CODECS
SYSTEMS AND METHODS FOR LOW-COMPLEXITY NEAR LOSSLESS FIXED-RATE HYBRID DATA COMPRESSION CODECS
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机译:低复杂性近无损固定速率混合数据压缩编解码器的系统和方法
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摘要
A method for encoding data includes: receiving a frame of data including subunits; initializing a remaining bit budget for the frame; setting a current codec to a lossless codec having a lossless codec bitrate; and sequentially encoding the subunits, including: encoding a first subunit using the lossless codec to compute a first encoded subunit; subtracting a length of the first encoded subunit from the remaining bit budget; determining whether the remaining bit budget exceeds a first lossy bits required to encode a plurality of remaining subunits using a first lossy codec having a first lossy codec bitrate lower than the lossless codec bitrate; in response to determining that the remaining bit budget is less than or equal to the first lossy bits required, setting the current codec to the first lossy codec; and encoding a second subunit using the first lossy codec to compute a second encoded subunit.
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