METHOD, NOTABLY FOR OPTIMIZING THE COMPRESSION OF A VIDEO AND/OR AUDIO FILE, USING A CODEC ASSIGNING A WEIGHT IN BITS PER SECOND TO THE CORRESPONDING COMPRESSED FILE, AND ASSOCIATED SYSTEM

摘要

A method for compressing a stream by means of a codec (C), provided for assigning to a compressed stream an encoding throughput (Q) measured in bits per second, using a pre-filter (X1) replacing in the header (T1) of the original stream, the restoration frequency (R) with a frequency equal to the product (R×K) of the restoration frequency (R) by a coefficient (K) and then for retransmitting the thereby filtered stream (FX1) to the codec; the post-filter (X2) replacing the restoration frequency (R) into the header (TX2) of a stream (FX2) resulting from the encoding of the pre-filtered stream (FX1) by the codec C.