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    METHOD AND APPARATUS FOR ARRANGING PIXELS OF PICTURE IN STORAGE UNITS EACH HAVING STORAGE SIZE NOT DIVISIBLE BY PIXEL SIZE
    61.
    发明申请
    METHOD AND APPARATUS FOR ARRANGING PIXELS OF PICTURE IN STORAGE UNITS EACH HAVING STORAGE SIZE NOT DIVISIBLE BY PIXEL SIZE 审中-公开
    用于安装存储单元中的图像像素的方法和装置，每个存储单元不能通过像素大小分辨

    公开(公告)号：US20140294090A1

    公开(公告)日：2014-10-02

    申请号：US14226840

    申请日：2014-03-27

    Applicant: MEDIATEK INC.

    Inventor： Chun-Chia Chen ,  Chi-Cheng Ju ,  Yung-Chang Chang ,  Ping Chao

    IPC: H04N19/433 ,  H04N19/51

    CPC classification number: G06T1/60 ,  G06T7/90 ,  G06T2207/20021 ,  H04N19/433 ,  H04N19/51

    Abstract: A data arrangement method includes following steps: obtaining pixel data of a plurality of first N-bit pixels of a picture; and storing the obtained pixel data of the first N-bit pixels in a plurality of M-bit storage units of a first buffer according to a block-based scan order of the picture. The picture includes a plurality of data blocks, and the block-based scan order includes a raster-scan order for the data blocks. At least one of the M-bit storage units is filled with part of the obtained pixel data of the first N-bit pixels, M and N are positive integers, M is not divisible by N, and the first N-bit pixels include at least one pixel divided into a first part stored in one of the M-bit storage units in the first buffer and a second part stored in another of the M-bit storage units in the first buffer.

    Abstract translation: 数据排列方法包括以下步骤：获得图像的多个第一N位像素的像素数据; 以及根据图像的基于块的扫描顺序将获得的第一N位像素的像素数据存储在第一缓冲器的多个M位存储单元中。 图像包括多个数据块，并且基于块的扫描顺序包括用于数据块的光栅扫描顺序。 M位存储单元中的至少一个被填充了所获得的第一N位像素的像素数据的一部分，M和N是正整数，M不能被N整除，并且第一N位像素包括在 至少一个像素被划分为存储在第一缓冲器中的M位存储单元之一中的第一部分和存储在第一缓冲器中的另一个M位存储单元中的第二部分。

    VIDEO PROCESSING APPARATUS CAPABLE OF GENERATING OUTPUT VIDEO PICTURES/SEQUENCE WITH COLOR DEPTH DIFFERENT FROM COLOR DEPTH OF ENCODED VIDEO BITSTREAM
    62.
    发明申请
    VIDEO PROCESSING APPARATUS CAPABLE OF GENERATING OUTPUT VIDEO PICTURES/SEQUENCE WITH COLOR DEPTH DIFFERENT FROM COLOR DEPTH OF ENCODED VIDEO BITSTREAM 有权
    视频处理设备可以生成输出视频图像/序列，颜色深度不同于编码视频比特币的颜色深度

    公开(公告)号：US20140177730A1

    公开(公告)日：2014-06-26

    申请号：US13726547

    申请日：2012-12-25

    Applicant: MEDIATEK INC.

    Inventor： Yung-Chang Chang

    IPC: H04N7/26

    CPC classification number: H04N19/186 ,  H04N19/105 ,  H04N19/117 ,  H04N19/132 ,  H04N19/139 ,  H04N19/182 ,  H04N19/44 ,  H04N19/86

    Abstract: A video processing apparatus includes a control unit, a storage device, a video decoder and a video processor. The control unit is arranged for generating a color depth control signal. The video decoder is coupled to the storage device, and arranged for decoding an encoded video bitstream and accordingly generating decoded video pictures (sequence) to the storage device. The video processor is coupled to the control unit and the storage device, and arranged for referring to the color depth control signal to enable a target video processing mode selected from a plurality of supported video processing modes respectively corresponding to different output color depths, and processing picture data derived from the data buffered in the storage device under the target video processing mode to generate output video pictures (sequence) to a display apparatus.

    Abstract translation: 视频处理装置包括控制单元，存储装置，视频解码器和视频处理器。 控制单元被布置用于产生颜色深度控制信号。 视频解码器耦合到存储设备，并且被布置用于对编码的视频比特流进行解码，并相应地向存储设备生成解码的视频图像（序列）。 视频处理器耦合到控制单元和存储设备，并且被布置为参考颜色深度控制信号，以便能够分别对应于不同的输出颜色深度的多个支持的视频处理模式中选择的目标视频处理模式，以及处理 从在目标视频处理模式下缓存在存储装置中的数据导出的图像数据，以产生输出视频图像（序列）到显示装置。

    Method and Apparatus for Sample Adaptive Offset in a Video Decoder
    63.
    发明申请
    Method and Apparatus for Sample Adaptive Offset in a Video Decoder 有权
    视频解码器中采样自适应偏移的方法和装置

    公开(公告)号：US20140036991A1

    公开(公告)日：2014-02-06

    申请号：US13887836

    申请日：2013-05-06

    Applicant: MEDIATEK INC.

    Inventor： Ping Chao ,  Yung-Chang Chang ,  Chi-Cheng Ju

    IPC: H04N7/26

    CPC classification number: H04N19/117 ,  H04N19/423 ,  H04N19/82 ,  H04N19/86

    Abstract: A method and apparatus for SAO (sample adaptive offset) processing in a video decoder are disclosed. Embodiments according to the present invention reduce the required line buffer associated with the SAO processing. According to one embodiment, tri-level comparison results for one deblocked pixel row or column of the image unit are determined according to SAO type of the deblocked pixel row or column. The tri-level comparison results are stored in a buffer and the tri-level comparison results are read back from the buffer for SAO processing of the subsequent row or column from a subsequent image unit. The comparison results correspond to “larger”, “equal” and “smaller” states. The comparison results can be stored more efficiently.

    Abstract translation: 公开了一种用于视频解码器中的SAO（采样自适应偏移）处理的方法和装置。 根据本发明的实施例减少了与SAO处理相关联的所需线路缓冲器。 根据一个实施例，根据解锁像素行或列的SAO类型来确定图像单元的一个去块像素行或列的三电平比较结果。 三电平比较结果存储在缓冲器中，三级比较结果从缓冲器中读出，用于后续行或列从后续图像单元进行SAO处理。 比较结果对应于“较大”，“相等”和“较小”状态。 比较结果可以更有效地存储。

    Method and apparatus for generating motion field motion vectors for blocks of current frame in on-the-fly manner
    67.
    发明授权
    Method and apparatus for generating motion field motion vectors for blocks of current frame in on-the-fly manner 有权

    公开(公告)号：US11025947B2

    公开(公告)日：2021-06-01

    申请号：US16697119

    申请日：2019-11-26

    Applicant: MEDIATEK INC.

    Inventor： Yung-Chang Chang ,  Chia-Yun Cheng ,  Cheng-Han Li ,  Hong-Cheng Lin ,  Chi-Hung Chen

    IPC: H04N19/52 ,  H04N19/119 ,  H04N19/176

    Abstract: A motion vector (MV) projection method includes generating motion field motion vectors (MFMVs) for a first portion of a current frame by applying MV projection to MVs of a portion of each of reference frames and storing the MFMVs of the first portion of the current frame into an MFMV buffer, and generating MFMVs for a second portion of the current frame by applying MV projection to MVs of a portion of each of the reference frames and storing the MFMVs of the second portion of the current frame into the MFMV buffer. The second portion does not overlap the first portion. Before generating the MFMVs for the second portion of the current frame is done, at least one of the MFMVs of the first portion is read from the MFMV buffer and involved in motion vector determination of at least one coding block included in the first portion.

    Video processing system using ring buffer and racing-mode ring buffer access control scheme
    68.
    发明授权
    Video processing system using ring buffer and racing-mode ring buffer access control scheme 有权

    公开(公告)号：US10984832B2

    公开(公告)日：2021-04-20

    申请号：US16734384

    申请日：2020-01-05

    Applicant: MEDIATEK INC.

    Inventor： Ming-Long Wu ,  Chia-Yun Cheng ,  Yung-Chang Chang

    IPC: G11B20/10 ,  H04N19/423 ,  H04N21/44 ,  H04N21/434 ,  H04N21/435 ,  H04N21/4363 ,  G09G5/393

    Abstract: A video processing system includes a storage device, a receiving circuit, an audio/video demultiplexing circuit, a video decoder, and a display engine. The storage device includes a data buffer, a bitstream buffer, and a display buffer. An output of the receiving circuit is written into the data buffer. An input of the audio/video demultiplexing circuit is read from the data buffer, and an output of the audio/video demultiplexing circuit is written into the bitstream buffer. An input of the video decoder is read from the bitstream buffer, and an output of the video decoder is written into the display buffer. An input of the display engine is read from the display buffer. Each of the data buffer, the bitstream buffer, and the display buffer is a ring buffer.

    ENTROPY DECODING APPARATUS WITH CONTEXT PRE-FETCH AND MISS HANDLING AND ASSOCIATED ENTROPY DECODING METHOD
    69.
    发明申请
    ENTROPY DECODING APPARATUS WITH CONTEXT PRE-FETCH AND MISS HANDLING AND ASSOCIATED ENTROPY DECODING METHOD 审中-公开

    公开(公告)号：US20200154108A1

    公开(公告)日：2020-05-14

    申请号：US16677598

    申请日：2019-11-07

    Applicant: MEDIATEK INC.

    Inventor： Ming-Long Wu ,  Chia-Yun Cheng ,  Yung-Chang Chang

    IPC: H04N19/13 ,  H04N19/44 ,  H04N19/70 ,  H04N19/172 ,  G06F9/38

    Abstract: An entropy decoding apparatus includes an entropy decoding circuit, a pre-fetch circuit, and a context pre-load buffer. The pre-fetch circuit pre-fetches at least one candidate context for entropy decoding of a part of an encoded bitstream of a frame before the entropy decoding circuit starts entropy decoding of the part of the encoded bitstream of the frame. The context pre-load buffer buffers the at least one candidate context. When a target context actually needed by entropy decoding of the part of the encoded bitstream of the frame is not available in the context pre-load buffer, the context pre-load buffer instructs the pre-fetch circuit to re-fetch the target context, and the entropy decoding circuit stalls entropy decoding of the part of the encoded bitstream of the frame.

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