摘要:
The present invention concerns an apparatus comprising a source circuit and a processing circuit. The source circuit may be configured to present a compressed video signal. The processing circuit may be configured to present an output signal in response to (i) the compressed video signal and (ii) a pause signal. The output signal (a) may be in a format that may be displayed by a display device and (b) may comprise (i) a first video source when the pause signal is in a first state and (ii) a second source when the pause signal is in a second state.
摘要:
A method for determining a context for coding is disclosed. The method generally includes the steps of (A) generating a plurality of results by examining a prediction mode for each of a plurality of neighbor blocks to a current block in a bitstream for digital video, wherein at least one of the neighbor blocks is subpartitioned, (B) generating a plurality of first variables based on the results and (C) coding the bitstream using a binary arithmetic coding based on a particular context among a plurality of context determined from the first variables.
摘要:
A video decoder comprising (i) a post-processing filter block, (ii) a comfort noise addition block and (iii) a video value/range adjustment block, where the comfort noise addition block is integrated into a video output path of the video decoder. The post-processing filter block may be configured to perform one or more of noise reduction, spatial filtering and temporal filtering on luminance data. The comfort noise addition block may be configured to add comfort noise to the luminance data. The video value/range adjustment block may be configured to adjust one or both of a value and a range of the luminance data.
摘要:
A method for activating and deactivating parameter sets comprising the steps of: (A) activating a first parameter set in response to a reference to a first identification value associated with the first parameter set and (B) deactivating the first parameter set in response to a reference to a second identification value associated with a second parameter set.
摘要:
A method for motion adaptive video deinterlacing is disclosed. The method generally includes the steps of (A) in a first plurality among a plurality of modes, generating a frame by deinterlacing a current field using a plurality of memory bandwidth configurations and (B) in a second plurality among the modes, generating the frame by deinterlacing the current field using a plurality of linestore configurations.
摘要:
A method for video decoding is disclosed. The method generally includes the steps of (A) decoding a first picture from a bitstream, the first picture having a first resolution, (B) storing the first picture at the first resolution in a memory and (C) storing the first picture at a second resolution in the memory, wherein the second resolution is lower than the first resolution.
摘要:
An apparatus comprising a first processing circuit and a second processing circuit. The first processing circuit may be configured to generate (i) one or more prediction samples and (ii) a plurality of macroblocks, in response to each frame of an input video signal. The second processing circuit may be configured to (i) select one or more reference indices for each of the macroblocks from one or more sets of reference indices and (ii) generate said one or more prediction samples in response to said selected reference indices. Each of the selected reference indices is generally determined based upon minimum and maximum values for each of the one or more sets of reference indices.
摘要:
An apparatus including a first processing circuit and a second precessing circuit. The first processing circuit may be configured to generate a plurality of reconstructed samples in response to one or more macroblocks of an input signal. The second processing circuit may be configured to determine availability of intra 4×4 prediction modes for each luma sub-block of a current macroblock in response to available reconstructed samples adjacent to the current macroblock.
摘要:
A method for transcoding from an H.264 format to an MPEG-2 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the H.264 format to generate a picture having a plurality of macroblock pairs that used an H.264 macroblock adaptive field/frame coding; (B) determining a mode indicator for each of the macroblock pairs; and (C) coding the macroblock pairs into an output video stream in the MPEG-2 format using one of (i) an MPEG-2 field mode coding and (ii) an MPEG-2 frame mode coding as determined from the mode indicators.
摘要:
A system having a memory and a processor is disclosed. The memory may be arranged as (i) a first pipeline to buffer a plurality of full resolution fields and (ii) a second pipeline to buffer a plurality of low resolution fields. The processor is generally configured to (i) receive a particular one or more of the full resolution fields and a particular one or more of the low resolution fields from the memory and (ii) generate a film mode signal based on the particular low resolution fields, the film mode signal indicating a current mode among a plurality of pull-down modes related to a current field being deinterlaced.