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| author | Sergio Garcia Murillo <sergio.garcia.murillo@gmail.com> | 2022-03-30 11:20:30 +0200 |
|---|---|---|
| committer | libyuv LUCI CQ <libyuv-scoped@luci-project-accounts.iam.gserviceaccount.com> | 2022-03-31 15:30:53 +0000 |
| commit | 4589081cea3dc5364dc433f9a20e67706fd3e29c (patch) | |
| tree | 80b8051d34052257fc9bf760a0cd1c48ad6f22ef /source/scale.cc | |
| parent | f4d25308467cbd50c2706a46fa0ddcef939e715a (diff) | |
| download | libyuv-4589081cea3dc5364dc433f9a20e67706fd3e29c.tar.gz | |
Add I422 and I210 functions
Bug: webrtc:13826
Change-Id: I68235a668abecf76133f7b89472b192b1442bed4
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/3557217
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Diffstat (limited to 'source/scale.cc')
| -rw-r--r-- | source/scale.cc | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/source/scale.cc b/source/scale.cc index ec972db5..d5c782b8 100644 --- a/source/scale.cc +++ b/source/scale.cc @@ -2328,6 +2328,116 @@ int I444Scale_12(const uint16_t* src_y, return 0; } +// Scale an I422 image. +// This function in turn calls a scaling function for each plane. + +LIBYUV_API +int I422Scale(const uint8_t* src_y, + int src_stride_y, + const uint8_t* src_u, + int src_stride_u, + const uint8_t* src_v, + int src_stride_v, + int src_width, + int src_height, + uint8_t* dst_y, + int dst_stride_y, + uint8_t* dst_u, + int dst_stride_u, + uint8_t* dst_v, + int dst_stride_v, + int dst_width, + int dst_height, + enum libyuv::FilterMode filtering) { + if (!src_y || !src_u || !src_v || src_width <= 0 || src_height == 0 || + src_width > 32768 || src_height > 32768 || !dst_y || !dst_u || !dst_v || + dst_width <= 0 || dst_height <= 0) { + return -1; + } + int src_halfwidth = SUBSAMPLE(src_width, 1, 1); + int dst_halfwidth = SUBSAMPLE(dst_width, 1, 1); + + libyuv::ScalePlane(src_y, src_stride_y, src_width, src_height, dst_y, + dst_stride_y, dst_width, dst_height, filtering); + libyuv::ScalePlane(src_u, src_stride_u, src_halfwidth, src_height, dst_u, + dst_stride_u, dst_halfwidth, dst_height, filtering); + libyuv::ScalePlane(src_v, src_stride_v, src_halfwidth, src_height, dst_v, + dst_stride_v, dst_halfwidth, dst_height, filtering); + return 0; +} + +LIBYUV_API +int I422Scale_16(const uint16_t* src_y, + int src_stride_y, + const uint16_t* src_u, + int src_stride_u, + const uint16_t* src_v, + int src_stride_v, + int src_width, + int src_height, + uint16_t* dst_y, + int dst_stride_y, + uint16_t* dst_u, + int dst_stride_u, + uint16_t* dst_v, + int dst_stride_v, + int dst_width, + int dst_height, + enum libyuv::FilterMode filtering) { + if (!src_y || !src_u || !src_v || src_width <= 0 || src_height == 0 || + src_width > 32768 || src_height > 32768 || !dst_y || !dst_u || !dst_v || + dst_width <= 0 || dst_height <= 0) { + return -1; + } + + int src_halfwidth = SUBSAMPLE(src_width, 1, 1); + int dst_halfwidth = SUBSAMPLE(dst_width, 1, 1); + + libyuv::ScalePlane_16(src_y, src_stride_y, src_width, src_height, dst_y, + dst_stride_y, dst_width, dst_height, filtering); + libyuv::ScalePlane_16(src_u, src_stride_u, src_halfwidth, src_height, dst_u, + dst_stride_u, dst_halfwidth, dst_height, filtering); + libyuv::ScalePlane_16(src_v, src_stride_v, src_halfwidth, src_height, dst_v, + dst_stride_v, dst_halfwidth, dst_height, filtering); + return 0; +} + +LIBYUV_API +int I422Scale_12(const uint16_t* src_y, + int src_stride_y, + const uint16_t* src_u, + int src_stride_u, + const uint16_t* src_v, + int src_stride_v, + int src_width, + int src_height, + uint16_t* dst_y, + int dst_stride_y, + uint16_t* dst_u, + int dst_stride_u, + uint16_t* dst_v, + int dst_stride_v, + int dst_width, + int dst_height, + enum libyuv::FilterMode filtering) { + if (!src_y || !src_u || !src_v || src_width <= 0 || src_height == 0 || + src_width > 32768 || src_height > 32768 || !dst_y || !dst_u || !dst_v || + dst_width <= 0 || dst_height <= 0) { + return -1; + } + + int src_halfwidth = SUBSAMPLE(src_width, 1, 1); + int dst_halfwidth = SUBSAMPLE(dst_width, 1, 1); + + libyuv::ScalePlane_12(src_y, src_stride_y, src_width, src_height, dst_y, + dst_stride_y, dst_width, dst_height, filtering); + libyuv::ScalePlane_12(src_u, src_stride_u, src_halfwidth, src_height, dst_u, + dst_stride_u, dst_halfwidth, dst_height, filtering); + libyuv::ScalePlane_12(src_v, src_stride_v, src_halfwidth, src_height, dst_v, + dst_stride_v, dst_halfwidth, dst_height, filtering); + return 0; +} + // Scale an NV12 image. // This function in turn calls a scaling function for each plane. |