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9fb83a18e3
Bug: webrtc:42226242 Change-Id: I023f058f3b5e2747bd02f01a191a91636c85f12d Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/359820 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Commit-Queue: Dor Hen <dorhen@meta.com> Cr-Commit-Position: refs/heads/main@{#42801}
218 lines
7.3 KiB
C++
218 lines
7.3 KiB
C++
/*
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* Copyright (c) 2022 The WebRTC 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 "api/video/i210_buffer.h"
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#include <cstdint>
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#include <utility>
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#include "api/make_ref_counted.h"
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#include "api/scoped_refptr.h"
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#include "api/video/i420_buffer.h"
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#include "api/video/i422_buffer.h"
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#include "api/video/video_frame_buffer.h"
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#include "api/video/video_rotation.h"
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#include "rtc_base/checks.h"
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#include "rtc_base/memory/aligned_malloc.h"
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#include "third_party/libyuv/include/libyuv/convert.h"
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#include "third_party/libyuv/include/libyuv/planar_functions.h"
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#include "third_party/libyuv/include/libyuv/rotate.h"
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#include "third_party/libyuv/include/libyuv/scale.h"
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// Aligning pointer to 64 bytes for improved performance, e.g. use SIMD.
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static const int kBufferAlignment = 64;
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static const int kBytesPerPixel = 2;
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namespace webrtc {
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namespace {
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int I210DataSize(int height, int stride_y, int stride_u, int stride_v) {
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return kBytesPerPixel *
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(stride_y * height + stride_u * height + stride_v * height);
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}
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} // namespace
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I210Buffer::I210Buffer(int width,
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int height,
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int stride_y,
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int stride_u,
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int stride_v)
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: width_(width),
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height_(height),
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stride_y_(stride_y),
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stride_u_(stride_u),
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stride_v_(stride_v),
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data_(static_cast<uint16_t*>(
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AlignedMalloc(I210DataSize(height, stride_y, stride_u, stride_v),
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kBufferAlignment))) {
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RTC_DCHECK_GT(width, 0);
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RTC_DCHECK_GT(height, 0);
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RTC_DCHECK_GE(stride_y, width);
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RTC_DCHECK_GE(stride_u, (width + 1) / 2);
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RTC_DCHECK_GE(stride_v, (width + 1) / 2);
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}
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I210Buffer::~I210Buffer() {}
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// static
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rtc::scoped_refptr<I210Buffer> I210Buffer::Create(int width, int height) {
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return rtc::make_ref_counted<I210Buffer>(width, height, width,
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(width + 1) / 2, (width + 1) / 2);
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}
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// static
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rtc::scoped_refptr<I210Buffer> I210Buffer::Copy(
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const I210BufferInterface& source) {
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const int width = source.width();
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const int height = source.height();
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rtc::scoped_refptr<I210Buffer> buffer = Create(width, height);
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RTC_CHECK_EQ(
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0, libyuv::I210Copy(
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source.DataY(), source.StrideY(), source.DataU(), source.StrideU(),
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source.DataV(), source.StrideV(), buffer->MutableDataY(),
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buffer->StrideY(), buffer->MutableDataU(), buffer->StrideU(),
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buffer->MutableDataV(), buffer->StrideV(), width, height));
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return buffer;
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}
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// static
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rtc::scoped_refptr<I210Buffer> I210Buffer::Copy(
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const I420BufferInterface& source) {
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const int width = source.width();
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const int height = source.height();
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auto i422buffer = I422Buffer::Copy(source);
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rtc::scoped_refptr<I210Buffer> buffer = Create(width, height);
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RTC_CHECK_EQ(0, libyuv::I422ToI210(i422buffer->DataY(), i422buffer->StrideY(),
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i422buffer->DataU(), i422buffer->StrideU(),
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i422buffer->DataV(), i422buffer->StrideV(),
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buffer->MutableDataY(), buffer->StrideY(),
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buffer->MutableDataU(), buffer->StrideU(),
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buffer->MutableDataV(), buffer->StrideV(),
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width, height));
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return buffer;
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}
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// static
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rtc::scoped_refptr<I210Buffer> I210Buffer::Rotate(
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const I210BufferInterface& src,
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VideoRotation rotation) {
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RTC_CHECK(src.DataY());
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RTC_CHECK(src.DataU());
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RTC_CHECK(src.DataV());
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int rotated_width = src.width();
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int rotated_height = src.height();
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if (rotation == webrtc::kVideoRotation_90 ||
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rotation == webrtc::kVideoRotation_270) {
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std::swap(rotated_width, rotated_height);
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}
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rtc::scoped_refptr<webrtc::I210Buffer> buffer =
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I210Buffer::Create(rotated_width, rotated_height);
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RTC_CHECK_EQ(0,
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libyuv::I210Rotate(
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src.DataY(), src.StrideY(), src.DataU(), src.StrideU(),
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src.DataV(), src.StrideV(), buffer->MutableDataY(),
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buffer->StrideY(), buffer->MutableDataU(), buffer->StrideU(),
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buffer->MutableDataV(), buffer->StrideV(), src.width(),
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src.height(), static_cast<libyuv::RotationMode>(rotation)));
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return buffer;
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}
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rtc::scoped_refptr<I420BufferInterface> I210Buffer::ToI420() {
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rtc::scoped_refptr<I420Buffer> i420_buffer =
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I420Buffer::Create(width(), height());
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libyuv::I210ToI420(DataY(), StrideY(), DataU(), StrideU(), DataV(), StrideV(),
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i420_buffer->MutableDataY(), i420_buffer->StrideY(),
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i420_buffer->MutableDataU(), i420_buffer->StrideU(),
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i420_buffer->MutableDataV(), i420_buffer->StrideV(),
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width(), height());
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return i420_buffer;
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}
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int I210Buffer::width() const {
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return width_;
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}
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int I210Buffer::height() const {
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return height_;
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}
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const uint16_t* I210Buffer::DataY() const {
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return data_.get();
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}
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const uint16_t* I210Buffer::DataU() const {
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return data_.get() + stride_y_ * height_;
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}
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const uint16_t* I210Buffer::DataV() const {
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return data_.get() + stride_y_ * height_ + stride_u_ * height_;
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}
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int I210Buffer::StrideY() const {
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return stride_y_;
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}
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int I210Buffer::StrideU() const {
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return stride_u_;
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}
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int I210Buffer::StrideV() const {
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return stride_v_;
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}
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uint16_t* I210Buffer::MutableDataY() {
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return const_cast<uint16_t*>(DataY());
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}
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uint16_t* I210Buffer::MutableDataU() {
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return const_cast<uint16_t*>(DataU());
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}
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uint16_t* I210Buffer::MutableDataV() {
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return const_cast<uint16_t*>(DataV());
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}
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void I210Buffer::CropAndScaleFrom(const I210BufferInterface& src,
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int offset_x,
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int offset_y,
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int crop_width,
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int crop_height) {
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RTC_CHECK_LE(crop_width, src.width());
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RTC_CHECK_LE(crop_height, src.height());
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RTC_CHECK_LE(crop_width + offset_x, src.width());
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RTC_CHECK_LE(crop_height + offset_y, src.height());
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RTC_CHECK_GE(offset_x, 0);
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RTC_CHECK_GE(offset_y, 0);
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RTC_CHECK_GE(crop_width, 0);
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RTC_CHECK_GE(crop_height, 0);
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// Make sure offset is even so that u/v plane becomes aligned.
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const int uv_offset_x = offset_x / 2;
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const int uv_offset_y = offset_y;
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offset_x = uv_offset_x * 2;
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const uint16_t* y_plane = src.DataY() + src.StrideY() * offset_y + offset_x;
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const uint16_t* u_plane =
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src.DataU() + src.StrideU() * uv_offset_y + uv_offset_x;
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const uint16_t* v_plane =
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src.DataV() + src.StrideV() * uv_offset_y + uv_offset_x;
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int res = libyuv::I422Scale_16(
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y_plane, src.StrideY(), u_plane, src.StrideU(), v_plane, src.StrideV(),
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crop_width, crop_height, MutableDataY(), StrideY(), MutableDataU(),
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StrideU(), MutableDataV(), StrideV(), width(), height(),
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libyuv::kFilterBox);
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RTC_DCHECK_EQ(res, 0);
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}
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void I210Buffer::ScaleFrom(const I210BufferInterface& src) {
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CropAndScaleFrom(src, 0, 0, src.width(), src.height());
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}
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} // namespace webrtc
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