714 lines
23 KiB
C++
714 lines
23 KiB
C++
/*
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* Copyright 2012 The LibYuv Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "libyuv/convert_from.h"
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#include "libyuv/basic_types.h"
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#include "libyuv/convert.h" // For I420Copy
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#include "libyuv/cpu_id.h"
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#include "libyuv/planar_functions.h"
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#include "libyuv/rotate.h"
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#include "libyuv/row.h"
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#include "libyuv/scale.h" // For ScalePlane()
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#include "libyuv/video_common.h"
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#ifdef __cplusplus
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namespace libyuv {
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extern "C" {
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#endif
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#define SUBSAMPLE(v, a, s) (v < 0) ? (-((-v + a) >> s)) : ((v + a) >> s)
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static __inline int Abs(int v) {
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return v >= 0 ? v : -v;
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}
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// I420 To any I4xx YUV format with mirroring.
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static int I420ToI4xx(const uint8_t* src_y,
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int src_stride_y,
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const uint8_t* src_u,
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int src_stride_u,
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const uint8_t* src_v,
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int src_stride_v,
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uint8_t* dst_y,
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int dst_stride_y,
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uint8_t* dst_u,
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int dst_stride_u,
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uint8_t* dst_v,
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int dst_stride_v,
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int src_y_width,
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int src_y_height,
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int dst_uv_width,
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int dst_uv_height) {
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const int dst_y_width = Abs(src_y_width);
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const int dst_y_height = Abs(src_y_height);
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const int src_uv_width = SUBSAMPLE(src_y_width, 1, 1);
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const int src_uv_height = SUBSAMPLE(src_y_height, 1, 1);
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if (src_y_width == 0 || src_y_height == 0 || dst_uv_width <= 0 ||
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dst_uv_height <= 0) {
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return -1;
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}
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if (dst_y) {
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ScalePlane(src_y, src_stride_y, src_y_width, src_y_height, dst_y,
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dst_stride_y, dst_y_width, dst_y_height, kFilterBilinear);
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}
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ScalePlane(src_u, src_stride_u, src_uv_width, src_uv_height, dst_u,
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dst_stride_u, dst_uv_width, dst_uv_height, kFilterBilinear);
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ScalePlane(src_v, src_stride_v, src_uv_width, src_uv_height, dst_v,
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dst_stride_v, dst_uv_width, dst_uv_height, kFilterBilinear);
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return 0;
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}
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// Convert 8 bit YUV to 10 bit.
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LIBYUV_API
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int I420ToI010(const uint8_t* src_y,
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int src_stride_y,
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const uint8_t* src_u,
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int src_stride_u,
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const uint8_t* src_v,
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int src_stride_v,
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uint16_t* dst_y,
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int dst_stride_y,
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uint16_t* dst_u,
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int dst_stride_u,
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uint16_t* dst_v,
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int dst_stride_v,
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int width,
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int height) {
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int halfwidth = (width + 1) >> 1;
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int halfheight = (height + 1) >> 1;
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if (!src_u || !src_v || !dst_u || !dst_v || width <= 0 || height == 0) {
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return -1;
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}
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// Negative height means invert the image.
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if (height < 0) {
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height = -height;
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halfheight = (height + 1) >> 1;
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src_y = src_y + (height - 1) * src_stride_y;
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src_u = src_u + (halfheight - 1) * src_stride_u;
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src_v = src_v + (halfheight - 1) * src_stride_v;
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src_stride_y = -src_stride_y;
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src_stride_u = -src_stride_u;
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src_stride_v = -src_stride_v;
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}
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// Convert Y plane.
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Convert8To16Plane(src_y, src_stride_y, dst_y, dst_stride_y, 1024, width,
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height);
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// Convert UV planes.
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Convert8To16Plane(src_u, src_stride_u, dst_u, dst_stride_u, 1024, halfwidth,
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halfheight);
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Convert8To16Plane(src_v, src_stride_v, dst_v, dst_stride_v, 1024, halfwidth,
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halfheight);
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return 0;
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}
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// 420 chroma is 1/2 width, 1/2 height
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// 422 chroma is 1/2 width, 1x height
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LIBYUV_API
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int I420ToI422(const uint8_t* src_y,
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int src_stride_y,
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const uint8_t* src_u,
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int src_stride_u,
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const uint8_t* src_v,
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int src_stride_v,
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uint8_t* dst_y,
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int dst_stride_y,
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uint8_t* dst_u,
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int dst_stride_u,
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uint8_t* dst_v,
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int dst_stride_v,
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int width,
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int height) {
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const int dst_uv_width = (Abs(width) + 1) >> 1;
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const int dst_uv_height = Abs(height);
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return I420ToI4xx(src_y, src_stride_y, src_u, src_stride_u, src_v,
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src_stride_v, dst_y, dst_stride_y, dst_u, dst_stride_u,
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dst_v, dst_stride_v, width, height, dst_uv_width,
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dst_uv_height);
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}
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// 420 chroma is 1/2 width, 1/2 height
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// 444 chroma is 1x width, 1x height
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LIBYUV_API
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int I420ToI444(const uint8_t* src_y,
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int src_stride_y,
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const uint8_t* src_u,
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int src_stride_u,
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const uint8_t* src_v,
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int src_stride_v,
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uint8_t* dst_y,
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int dst_stride_y,
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uint8_t* dst_u,
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int dst_stride_u,
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uint8_t* dst_v,
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int dst_stride_v,
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int width,
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int height) {
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const int dst_uv_width = Abs(width);
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const int dst_uv_height = Abs(height);
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return I420ToI4xx(src_y, src_stride_y, src_u, src_stride_u, src_v,
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src_stride_v, dst_y, dst_stride_y, dst_u, dst_stride_u,
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dst_v, dst_stride_v, width, height, dst_uv_width,
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dst_uv_height);
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}
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// Copy to I400. Source can be I420,422,444,400,NV12,NV21
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LIBYUV_API
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int I400Copy(const uint8_t* src_y,
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int src_stride_y,
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uint8_t* dst_y,
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int dst_stride_y,
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int width,
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int height) {
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if (!src_y || !dst_y || width <= 0 || height == 0) {
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return -1;
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}
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// Negative height means invert the image.
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if (height < 0) {
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height = -height;
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src_y = src_y + (height - 1) * src_stride_y;
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src_stride_y = -src_stride_y;
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}
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CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height);
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return 0;
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}
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LIBYUV_API
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int I422ToYUY2(const uint8_t* src_y,
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int src_stride_y,
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const uint8_t* src_u,
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int src_stride_u,
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const uint8_t* src_v,
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int src_stride_v,
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uint8_t* dst_yuy2,
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int dst_stride_yuy2,
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int width,
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int height) {
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int y;
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void (*I422ToYUY2Row)(const uint8_t* src_y, const uint8_t* src_u,
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const uint8_t* src_v, uint8_t* dst_yuy2, int width) =
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I422ToYUY2Row_C;
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if (!src_y || !src_u || !src_v || !dst_yuy2 || width <= 0 || height == 0) {
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return -1;
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}
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// Negative height means invert the image.
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if (height < 0) {
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height = -height;
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dst_yuy2 = dst_yuy2 + (height - 1) * dst_stride_yuy2;
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dst_stride_yuy2 = -dst_stride_yuy2;
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}
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// Coalesce rows.
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if (src_stride_y == width && src_stride_u * 2 == width &&
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src_stride_v * 2 == width && dst_stride_yuy2 == width * 2) {
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width *= height;
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height = 1;
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src_stride_y = src_stride_u = src_stride_v = dst_stride_yuy2 = 0;
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}
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#if defined(HAS_I422TOYUY2ROW_SSE2)
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if (TestCpuFlag(kCpuHasSSE2)) {
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I422ToYUY2Row = I422ToYUY2Row_Any_SSE2;
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if (IS_ALIGNED(width, 16)) {
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I422ToYUY2Row = I422ToYUY2Row_SSE2;
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}
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}
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#endif
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#if defined(HAS_I422TOYUY2ROW_AVX2)
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if (TestCpuFlag(kCpuHasAVX2)) {
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I422ToYUY2Row = I422ToYUY2Row_Any_AVX2;
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if (IS_ALIGNED(width, 32)) {
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I422ToYUY2Row = I422ToYUY2Row_AVX2;
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}
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}
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#endif
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#if defined(HAS_I422TOYUY2ROW_NEON)
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if (TestCpuFlag(kCpuHasNEON)) {
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I422ToYUY2Row = I422ToYUY2Row_Any_NEON;
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if (IS_ALIGNED(width, 16)) {
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I422ToYUY2Row = I422ToYUY2Row_NEON;
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}
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}
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#endif
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for (y = 0; y < height; ++y) {
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I422ToYUY2Row(src_y, src_u, src_v, dst_yuy2, width);
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src_y += src_stride_y;
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src_u += src_stride_u;
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src_v += src_stride_v;
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dst_yuy2 += dst_stride_yuy2;
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}
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return 0;
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}
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LIBYUV_API
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int I420ToYUY2(const uint8_t* src_y,
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int src_stride_y,
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const uint8_t* src_u,
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int src_stride_u,
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const uint8_t* src_v,
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int src_stride_v,
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uint8_t* dst_yuy2,
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int dst_stride_yuy2,
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int width,
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int height) {
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int y;
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void (*I422ToYUY2Row)(const uint8_t* src_y, const uint8_t* src_u,
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const uint8_t* src_v, uint8_t* dst_yuy2, int width) =
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I422ToYUY2Row_C;
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if (!src_y || !src_u || !src_v || !dst_yuy2 || width <= 0 || height == 0) {
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return -1;
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}
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// Negative height means invert the image.
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if (height < 0) {
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height = -height;
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dst_yuy2 = dst_yuy2 + (height - 1) * dst_stride_yuy2;
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dst_stride_yuy2 = -dst_stride_yuy2;
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}
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#if defined(HAS_I422TOYUY2ROW_SSE2)
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if (TestCpuFlag(kCpuHasSSE2)) {
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I422ToYUY2Row = I422ToYUY2Row_Any_SSE2;
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if (IS_ALIGNED(width, 16)) {
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I422ToYUY2Row = I422ToYUY2Row_SSE2;
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}
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}
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#endif
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#if defined(HAS_I422TOYUY2ROW_AVX2)
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if (TestCpuFlag(kCpuHasAVX2)) {
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I422ToYUY2Row = I422ToYUY2Row_Any_AVX2;
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if (IS_ALIGNED(width, 32)) {
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I422ToYUY2Row = I422ToYUY2Row_AVX2;
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}
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}
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#endif
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#if defined(HAS_I422TOYUY2ROW_NEON)
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if (TestCpuFlag(kCpuHasNEON)) {
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I422ToYUY2Row = I422ToYUY2Row_Any_NEON;
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if (IS_ALIGNED(width, 16)) {
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I422ToYUY2Row = I422ToYUY2Row_NEON;
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}
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}
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#endif
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#if defined(HAS_I422TOYUY2ROW_MMI)
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if (TestCpuFlag(kCpuHasMMI)) {
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I422ToYUY2Row = I422ToYUY2Row_Any_MMI;
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if (IS_ALIGNED(width, 8)) {
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I422ToYUY2Row = I422ToYUY2Row_MMI;
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}
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}
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#endif
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#if defined(HAS_I422TOYUY2ROW_MSA)
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if (TestCpuFlag(kCpuHasMSA)) {
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I422ToYUY2Row = I422ToYUY2Row_Any_MSA;
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if (IS_ALIGNED(width, 32)) {
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I422ToYUY2Row = I422ToYUY2Row_MSA;
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}
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}
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#endif
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for (y = 0; y < height - 1; y += 2) {
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I422ToYUY2Row(src_y, src_u, src_v, dst_yuy2, width);
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I422ToYUY2Row(src_y + src_stride_y, src_u, src_v,
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dst_yuy2 + dst_stride_yuy2, width);
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src_y += src_stride_y * 2;
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src_u += src_stride_u;
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src_v += src_stride_v;
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dst_yuy2 += dst_stride_yuy2 * 2;
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}
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if (height & 1) {
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I422ToYUY2Row(src_y, src_u, src_v, dst_yuy2, width);
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}
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return 0;
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}
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LIBYUV_API
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int I422ToUYVY(const uint8_t* src_y,
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int src_stride_y,
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const uint8_t* src_u,
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int src_stride_u,
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const uint8_t* src_v,
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int src_stride_v,
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uint8_t* dst_uyvy,
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int dst_stride_uyvy,
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int width,
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int height) {
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int y;
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void (*I422ToUYVYRow)(const uint8_t* src_y, const uint8_t* src_u,
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const uint8_t* src_v, uint8_t* dst_uyvy, int width) =
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I422ToUYVYRow_C;
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if (!src_y || !src_u || !src_v || !dst_uyvy || width <= 0 || height == 0) {
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return -1;
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}
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// Negative height means invert the image.
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if (height < 0) {
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height = -height;
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dst_uyvy = dst_uyvy + (height - 1) * dst_stride_uyvy;
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dst_stride_uyvy = -dst_stride_uyvy;
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}
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// Coalesce rows.
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if (src_stride_y == width && src_stride_u * 2 == width &&
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src_stride_v * 2 == width && dst_stride_uyvy == width * 2) {
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width *= height;
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height = 1;
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src_stride_y = src_stride_u = src_stride_v = dst_stride_uyvy = 0;
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}
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#if defined(HAS_I422TOUYVYROW_SSE2)
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if (TestCpuFlag(kCpuHasSSE2)) {
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I422ToUYVYRow = I422ToUYVYRow_Any_SSE2;
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if (IS_ALIGNED(width, 16)) {
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I422ToUYVYRow = I422ToUYVYRow_SSE2;
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}
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}
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#endif
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#if defined(HAS_I422TOUYVYROW_AVX2)
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if (TestCpuFlag(kCpuHasAVX2)) {
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I422ToUYVYRow = I422ToUYVYRow_Any_AVX2;
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if (IS_ALIGNED(width, 32)) {
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I422ToUYVYRow = I422ToUYVYRow_AVX2;
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}
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}
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#endif
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#if defined(HAS_I422TOUYVYROW_NEON)
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if (TestCpuFlag(kCpuHasNEON)) {
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I422ToUYVYRow = I422ToUYVYRow_Any_NEON;
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if (IS_ALIGNED(width, 16)) {
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I422ToUYVYRow = I422ToUYVYRow_NEON;
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}
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}
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#endif
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#if defined(HAS_I422TOUYVYROW_MMI)
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if (TestCpuFlag(kCpuHasMMI)) {
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I422ToUYVYRow = I422ToUYVYRow_Any_MMI;
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if (IS_ALIGNED(width, 8)) {
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I422ToUYVYRow = I422ToUYVYRow_MMI;
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}
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}
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#endif
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#if defined(HAS_I422TOUYVYROW_MSA)
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if (TestCpuFlag(kCpuHasMSA)) {
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I422ToUYVYRow = I422ToUYVYRow_Any_MSA;
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if (IS_ALIGNED(width, 32)) {
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I422ToUYVYRow = I422ToUYVYRow_MSA;
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}
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}
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#endif
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for (y = 0; y < height; ++y) {
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I422ToUYVYRow(src_y, src_u, src_v, dst_uyvy, width);
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src_y += src_stride_y;
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src_u += src_stride_u;
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src_v += src_stride_v;
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dst_uyvy += dst_stride_uyvy;
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}
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return 0;
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}
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LIBYUV_API
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int I420ToUYVY(const uint8_t* src_y,
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int src_stride_y,
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const uint8_t* src_u,
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int src_stride_u,
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const uint8_t* src_v,
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int src_stride_v,
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uint8_t* dst_uyvy,
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int dst_stride_uyvy,
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int width,
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int height) {
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int y;
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void (*I422ToUYVYRow)(const uint8_t* src_y, const uint8_t* src_u,
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const uint8_t* src_v, uint8_t* dst_uyvy, int width) =
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I422ToUYVYRow_C;
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if (!src_y || !src_u || !src_v || !dst_uyvy || width <= 0 || height == 0) {
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return -1;
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}
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// Negative height means invert the image.
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if (height < 0) {
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height = -height;
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dst_uyvy = dst_uyvy + (height - 1) * dst_stride_uyvy;
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dst_stride_uyvy = -dst_stride_uyvy;
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}
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#if defined(HAS_I422TOUYVYROW_SSE2)
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if (TestCpuFlag(kCpuHasSSE2)) {
|
|
I422ToUYVYRow = I422ToUYVYRow_Any_SSE2;
|
|
if (IS_ALIGNED(width, 16)) {
|
|
I422ToUYVYRow = I422ToUYVYRow_SSE2;
|
|
}
|
|
}
|
|
#endif
|
|
#if defined(HAS_I422TOUYVYROW_AVX2)
|
|
if (TestCpuFlag(kCpuHasAVX2)) {
|
|
I422ToUYVYRow = I422ToUYVYRow_Any_AVX2;
|
|
if (IS_ALIGNED(width, 32)) {
|
|
I422ToUYVYRow = I422ToUYVYRow_AVX2;
|
|
}
|
|
}
|
|
#endif
|
|
#if defined(HAS_I422TOUYVYROW_NEON)
|
|
if (TestCpuFlag(kCpuHasNEON)) {
|
|
I422ToUYVYRow = I422ToUYVYRow_Any_NEON;
|
|
if (IS_ALIGNED(width, 16)) {
|
|
I422ToUYVYRow = I422ToUYVYRow_NEON;
|
|
}
|
|
}
|
|
#endif
|
|
#if defined(HAS_I422TOUYVYROW_MMI)
|
|
if (TestCpuFlag(kCpuHasMMI)) {
|
|
I422ToUYVYRow = I422ToUYVYRow_Any_MMI;
|
|
if (IS_ALIGNED(width, 8)) {
|
|
I422ToUYVYRow = I422ToUYVYRow_MMI;
|
|
}
|
|
}
|
|
#endif
|
|
#if defined(HAS_I422TOUYVYROW_MSA)
|
|
if (TestCpuFlag(kCpuHasMSA)) {
|
|
I422ToUYVYRow = I422ToUYVYRow_Any_MSA;
|
|
if (IS_ALIGNED(width, 32)) {
|
|
I422ToUYVYRow = I422ToUYVYRow_MSA;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
for (y = 0; y < height - 1; y += 2) {
|
|
I422ToUYVYRow(src_y, src_u, src_v, dst_uyvy, width);
|
|
I422ToUYVYRow(src_y + src_stride_y, src_u, src_v,
|
|
dst_uyvy + dst_stride_uyvy, width);
|
|
src_y += src_stride_y * 2;
|
|
src_u += src_stride_u;
|
|
src_v += src_stride_v;
|
|
dst_uyvy += dst_stride_uyvy * 2;
|
|
}
|
|
if (height & 1) {
|
|
I422ToUYVYRow(src_y, src_u, src_v, dst_uyvy, width);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
LIBYUV_API
|
|
int I420ToNV12(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,
|
|
uint8_t* dst_y,
|
|
int dst_stride_y,
|
|
uint8_t* dst_uv,
|
|
int dst_stride_uv,
|
|
int width,
|
|
int height) {
|
|
int halfwidth = (width + 1) / 2;
|
|
int halfheight = (height + 1) / 2;
|
|
if (!src_y || !src_u || !src_v || !dst_y || !dst_uv || width <= 0 ||
|
|
height == 0) {
|
|
return -1;
|
|
}
|
|
// Negative height means invert the image.
|
|
if (height < 0) {
|
|
height = -height;
|
|
halfheight = (height + 1) >> 1;
|
|
src_y = src_y + (height - 1) * src_stride_y;
|
|
src_u = src_u + (halfheight - 1) * src_stride_u;
|
|
src_v = src_v + (halfheight - 1) * src_stride_v;
|
|
src_stride_y = -src_stride_y;
|
|
src_stride_u = -src_stride_u;
|
|
src_stride_v = -src_stride_v;
|
|
}
|
|
if (dst_y) {
|
|
CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height);
|
|
}
|
|
MergeUVPlane(src_u, src_stride_u, src_v, src_stride_v, dst_uv, dst_stride_uv,
|
|
halfwidth, halfheight);
|
|
return 0;
|
|
}
|
|
|
|
LIBYUV_API
|
|
int I420ToNV21(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,
|
|
uint8_t* dst_y,
|
|
int dst_stride_y,
|
|
uint8_t* dst_vu,
|
|
int dst_stride_vu,
|
|
int width,
|
|
int height) {
|
|
return I420ToNV12(src_y, src_stride_y, src_v, src_stride_v, src_u,
|
|
src_stride_u, dst_y, dst_stride_y, dst_vu, dst_stride_vu,
|
|
width, height);
|
|
}
|
|
|
|
// Convert I420 to specified format
|
|
LIBYUV_API
|
|
int ConvertFromI420(const uint8_t* y,
|
|
int y_stride,
|
|
const uint8_t* u,
|
|
int u_stride,
|
|
const uint8_t* v,
|
|
int v_stride,
|
|
uint8_t* dst_sample,
|
|
int dst_sample_stride,
|
|
int width,
|
|
int height,
|
|
uint32_t fourcc) {
|
|
uint32_t format = CanonicalFourCC(fourcc);
|
|
int r = 0;
|
|
if (!y || !u || !v || !dst_sample || width <= 0 || height == 0) {
|
|
return -1;
|
|
}
|
|
switch (format) {
|
|
// Single plane formats
|
|
case FOURCC_YUY2:
|
|
r = I420ToYUY2(y, y_stride, u, u_stride, v, v_stride, dst_sample,
|
|
dst_sample_stride ? dst_sample_stride : width * 2, width,
|
|
height);
|
|
break;
|
|
case FOURCC_UYVY:
|
|
r = I420ToUYVY(y, y_stride, u, u_stride, v, v_stride, dst_sample,
|
|
dst_sample_stride ? dst_sample_stride : width * 2, width,
|
|
height);
|
|
break;
|
|
case FOURCC_RGBP:
|
|
r = I420ToRGB565(y, y_stride, u, u_stride, v, v_stride, dst_sample,
|
|
dst_sample_stride ? dst_sample_stride : width * 2, width,
|
|
height);
|
|
break;
|
|
case FOURCC_RGBO:
|
|
r = I420ToARGB1555(y, y_stride, u, u_stride, v, v_stride, dst_sample,
|
|
dst_sample_stride ? dst_sample_stride : width * 2,
|
|
width, height);
|
|
break;
|
|
case FOURCC_R444:
|
|
r = I420ToARGB4444(y, y_stride, u, u_stride, v, v_stride, dst_sample,
|
|
dst_sample_stride ? dst_sample_stride : width * 2,
|
|
width, height);
|
|
break;
|
|
case FOURCC_24BG:
|
|
r = I420ToRGB24(y, y_stride, u, u_stride, v, v_stride, dst_sample,
|
|
dst_sample_stride ? dst_sample_stride : width * 3, width,
|
|
height);
|
|
break;
|
|
case FOURCC_RAW:
|
|
r = I420ToRAW(y, y_stride, u, u_stride, v, v_stride, dst_sample,
|
|
dst_sample_stride ? dst_sample_stride : width * 3, width,
|
|
height);
|
|
break;
|
|
case FOURCC_ARGB:
|
|
r = I420ToARGB(y, y_stride, u, u_stride, v, v_stride, dst_sample,
|
|
dst_sample_stride ? dst_sample_stride : width * 4, width,
|
|
height);
|
|
break;
|
|
case FOURCC_BGRA:
|
|
r = I420ToBGRA(y, y_stride, u, u_stride, v, v_stride, dst_sample,
|
|
dst_sample_stride ? dst_sample_stride : width * 4, width,
|
|
height);
|
|
break;
|
|
case FOURCC_ABGR:
|
|
r = I420ToABGR(y, y_stride, u, u_stride, v, v_stride, dst_sample,
|
|
dst_sample_stride ? dst_sample_stride : width * 4, width,
|
|
height);
|
|
break;
|
|
case FOURCC_RGBA:
|
|
r = I420ToRGBA(y, y_stride, u, u_stride, v, v_stride, dst_sample,
|
|
dst_sample_stride ? dst_sample_stride : width * 4, width,
|
|
height);
|
|
break;
|
|
case FOURCC_AR30:
|
|
r = I420ToAR30(y, y_stride, u, u_stride, v, v_stride, dst_sample,
|
|
dst_sample_stride ? dst_sample_stride : width * 4, width,
|
|
height);
|
|
break;
|
|
case FOURCC_I400:
|
|
r = I400Copy(y, y_stride, dst_sample,
|
|
dst_sample_stride ? dst_sample_stride : width, width,
|
|
height);
|
|
break;
|
|
case FOURCC_NV12: {
|
|
uint8_t* dst_uv = dst_sample + width * height;
|
|
r = I420ToNV12(y, y_stride, u, u_stride, v, v_stride, dst_sample,
|
|
dst_sample_stride ? dst_sample_stride : width, dst_uv,
|
|
dst_sample_stride ? dst_sample_stride : width, width,
|
|
height);
|
|
break;
|
|
}
|
|
case FOURCC_NV21: {
|
|
uint8_t* dst_vu = dst_sample + width * height;
|
|
r = I420ToNV21(y, y_stride, u, u_stride, v, v_stride, dst_sample,
|
|
dst_sample_stride ? dst_sample_stride : width, dst_vu,
|
|
dst_sample_stride ? dst_sample_stride : width, width,
|
|
height);
|
|
break;
|
|
}
|
|
// Triplanar formats
|
|
case FOURCC_I420:
|
|
case FOURCC_YV12: {
|
|
dst_sample_stride = dst_sample_stride ? dst_sample_stride : width;
|
|
int halfstride = (dst_sample_stride + 1) / 2;
|
|
int halfheight = (height + 1) / 2;
|
|
uint8_t* dst_u;
|
|
uint8_t* dst_v;
|
|
if (format == FOURCC_YV12) {
|
|
dst_v = dst_sample + dst_sample_stride * height;
|
|
dst_u = dst_v + halfstride * halfheight;
|
|
} else {
|
|
dst_u = dst_sample + dst_sample_stride * height;
|
|
dst_v = dst_u + halfstride * halfheight;
|
|
}
|
|
r = I420Copy(y, y_stride, u, u_stride, v, v_stride, dst_sample,
|
|
dst_sample_stride, dst_u, halfstride, dst_v, halfstride,
|
|
width, height);
|
|
break;
|
|
}
|
|
case FOURCC_I422:
|
|
case FOURCC_YV16: {
|
|
dst_sample_stride = dst_sample_stride ? dst_sample_stride : width;
|
|
int halfstride = (dst_sample_stride + 1) / 2;
|
|
uint8_t* dst_u;
|
|
uint8_t* dst_v;
|
|
if (format == FOURCC_YV16) {
|
|
dst_v = dst_sample + dst_sample_stride * height;
|
|
dst_u = dst_v + halfstride * height;
|
|
} else {
|
|
dst_u = dst_sample + dst_sample_stride * height;
|
|
dst_v = dst_u + halfstride * height;
|
|
}
|
|
r = I420ToI422(y, y_stride, u, u_stride, v, v_stride, dst_sample,
|
|
dst_sample_stride, dst_u, halfstride, dst_v, halfstride,
|
|
width, height);
|
|
break;
|
|
}
|
|
case FOURCC_I444:
|
|
case FOURCC_YV24: {
|
|
dst_sample_stride = dst_sample_stride ? dst_sample_stride : width;
|
|
uint8_t* dst_u;
|
|
uint8_t* dst_v;
|
|
if (format == FOURCC_YV24) {
|
|
dst_v = dst_sample + dst_sample_stride * height;
|
|
dst_u = dst_v + dst_sample_stride * height;
|
|
} else {
|
|
dst_u = dst_sample + dst_sample_stride * height;
|
|
dst_v = dst_u + dst_sample_stride * height;
|
|
}
|
|
r = I420ToI444(y, y_stride, u, u_stride, v, v_stride, dst_sample,
|
|
dst_sample_stride, dst_u, dst_sample_stride, dst_v,
|
|
dst_sample_stride, width, height);
|
|
break;
|
|
}
|
|
// Formats not supported - MJPG, biplanar, some rgb formats.
|
|
default:
|
|
return -1; // unknown fourcc - return failure code.
|
|
}
|
|
return r;
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
} // extern "C"
|
|
} // namespace libyuv
|
|
#endif
|