Interframe rapid video transcoding method applied to from H. 264 to HEVC
A fast video transcoding technology, applied in the field of H.264 to HEVC transcoding, can solve problems such as loss, monotonous motion information, and accelerated BD-rate
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[0047] According to the H.264 bitstream information and HEVC inter-coding information, for the inter-coding part of the H.264 to HEVC transcoder, a fast mode decision and motion estimation method is adopted. For a CU with a depth of 0 and 1 layer, combine the information obtained by H.264 code stream decoding and HEVC coding information to obtain 2N×2N advance decision threshold and asymmetric partition (Asymmetric Motion Partition, AMP) decision threshold, and then determine the PU search Happening. First, the 2N×2N mode decision is made on the CU according to the 2N×2N judgment threshold, and then it is predicted whether the PU is directly judged as the 2N×2N mode, and then it is judged whether it is necessary to search for the AMP mode according to the AMP judgment threshold. For a CU with a depth of 2, mapping is performed according to the bitstream information of H.264 to determine whether to enter the depth 3 for encoding. For the motion estimation part, H.264 decoding i...
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