[AV1] interpolation

2022-01-20 17:47:45 浏览数 (3)

在AV1中，帧间预测的插值滤波一共定义了以下五种类型

interpolation filter

名称

0

EIGHTTAP_REGULAR

1

EIGHTTAP_SMOOTH

2

MULTITAP_SHARP

3

BILINEAR

4

switchabe

代码语言：javascript复制
typedef enum ATTRIBUTE_PACKED {
  EIGHTTAP_REGULAR,
  EIGHTTAP_SMOOTH,
  MULTITAP_SHARP,
  BILINEAR,
  // Encoder side only filters
  MULTITAP_SHARP2,

  INTERP_FILTERS_ALL,
  SWITCHABLE_FILTERS = BILINEAR,
  SWITCHABLE = SWITCHABLE_FILTERS   1, /* the last switchable one */
  EXTRA_FILTERS = INTERP_FILTERS_ALL - SWITCHABLE_FILTERS,
  INTERP_INVALID = 0xff,
} InterpFilter;
filter interpolation sh

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