5results about How to "Reduce codec complexity" patented technology

The invention provides an audio coding and decoding method and device, equipment, a medium and a program product. The audio coding method comprises the following steps: decomposing an audio signal to obtain a low-frequency sub-band signal and a high-frequency sub-band signal; performing multi-level feature extraction processing based on the low-frequency sub-band signal and the high-frequency sub-band signal to obtain sub-band signal features corresponding to the plurality of levels; performing quantization processing on the sub-band signal features corresponding to each level to obtain index values of the sub-band signal features; encoding the index value of the sub-band signal feature to obtain a code stream corresponding to the hierarchy; configuring corresponding transmission priorities for the code streams corresponding to the plurality of layers respectively; wherein the transmission priority is positively correlated with the decoding quality index of the code stream corresponding to the hierarchy. The method can be flexibly applied to application scenes of different network bandwidths, and the audio coding and decoding efficiency and quality are improved.

The embodiment of the invention provides a video encoding and decoding method and device, a computer readable medium and electronic equipment. The video decoding method comprises the following steps: determining a plurality of pixel regions in a current frame based on a preset pixel region size, wherein each pixel region comprises at least one pixel; determining a skipped area in the current frame according to whether each pixel area is processed in a skipped mode or not; and generating reconstruction data corresponding to the current block according to the position relationship between the current block to be decoded and the skipping region. According to the technical scheme of the embodiment of the invention, the coding and decoding efficiency can be improved, and the coding and decoding complexity can be reduced.

The invention provides a video decoding method and device, a video coding method and device, equipment and a storage medium, and relates to the technical field of video coding and decoding. The method comprises the following steps: decoding a code stream to obtain a binary symbol string of string length information of a current string; performing reverse binarization processing on the binary symbol string according to the string length resolution of the current string to obtain string length information; and determining the string length of the current string according to the string length information. According to the invention, the length of the pixel string in the coding and decoding block can be limited to be the multiple of the string length resolution, the uniformity of the pixel string is improved, a coding and decoding end can carry out coding and decoding under the condition of memory alignment, and the coding and decoding efficiency of the pixel string is improved. Besides, in consideration of the influence of the string length resolution on string length information encoding and decoding, a binarization and anti-binarization processing method for string length information is provided, the encoding and decoding mode of the string length information under different string length resolutions is improved, and the encoding and decoding performance can be improved.

The application provides an audio encoding and decoding method, device, equipment, medium and program product; wherein the audio encoding method comprises: decomposing an audio signal to obtain a low-frequency sub-band signal and a high-frequency sub-band signal; performing multi-level feature extraction processing based on the low-frequency sub-band signal and the high-frequency sub-band signal to obtain sub-band signal features corresponding to multiple levels respectively; performing quantization processing on the sub-band signal features corresponding to each level to obtain index values of the sub-band signal features; performing encoding processing on the index values of the sub-band signal features to obtain code streams corresponding to the levels; and configuring corresponding transmission priorities for the code streams corresponding to the multiple levels respectively; wherein the transmission priority is positively correlated with a decoding quality index of the code stream corresponding to the level. The application can be flexibly applied to different network bandwidth application scenarios, and the efficiency and quality of audio encoding and decoding are improved.

The embodiments of the present application provide a video encoding and decoding method, device, computer-readable medium and electronic device. The video decoding method comprises: decoding from a bit stream to obtain an absolute value of a first direction component of a string displacement vector residual; if the absolute value of the first direction component of the string displacement vector residual is not 0, decoding from the bit stream to obtain a symbol value of the first direction component of the string displacement vector residual; and determining the value of the first direction component of the string displacement vector residual according to the absolute value of the first direction component of the string displacement vector residual and the symbol value of the first direction component of the string displacement vector residual. The technical solution of the embodiments of the present application can improve the encoding and decoding efficiency of the video.