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/*
* Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "api/video/video_frame_buffer.h"
#include "api/video/i420_buffer.h"
#include "api/video/i422_buffer.h"
#include "api/video/i444_buffer.h"
#include "api/video/nv12_buffer.h"
#include "rtc_base/checks.h"
namespace webrtc {
rtc::scoped_refptr<VideoFrameBuffer> VideoFrameBuffer::CropAndScale(
int offset_x,
int offset_y,
int crop_width,
int crop_height,
int scaled_width,
int scaled_height) {
rtc::scoped_refptr<I420Buffer> result =
I420Buffer::Create(scaled_width, scaled_height);
result->CropAndScaleFrom(*this->ToI420(), offset_x, offset_y, crop_width,
crop_height);
return result;
}
const I420BufferInterface* VideoFrameBuffer::GetI420() const {
// Overridden by subclasses that can return an I420 buffer without any
// conversion, in particular, I420BufferInterface.
return nullptr;
}
const I420ABufferInterface* VideoFrameBuffer::GetI420A() const {
RTC_CHECK(type() == Type::kI420A);
return static_cast<const I420ABufferInterface*>(this);
}
const I444BufferInterface* VideoFrameBuffer::GetI444() const {
RTC_CHECK(type() == Type::kI444);
return static_cast<const I444BufferInterface*>(this);
}
const I422BufferInterface* VideoFrameBuffer::GetI422() const {
RTC_CHECK(type() == Type::kI422);
return static_cast<const I422BufferInterface*>(this);
}
const I010BufferInterface* VideoFrameBuffer::GetI010() const {
RTC_CHECK(type() == Type::kI010);
return static_cast<const I010BufferInterface*>(this);
}
const I210BufferInterface* VideoFrameBuffer::GetI210() const {
RTC_CHECK(type() == Type::kI210);
return static_cast<const I210BufferInterface*>(this);
}
const I410BufferInterface* VideoFrameBuffer::GetI410() const {
RTC_CHECK(type() == Type::kI410);
return static_cast<const I410BufferInterface*>(this);
}
const NV12BufferInterface* VideoFrameBuffer::GetNV12() const {
RTC_CHECK(type() == Type::kNV12);
return static_cast<const NV12BufferInterface*>(this);
}
rtc::scoped_refptr<VideoFrameBuffer> VideoFrameBuffer::GetMappedFrameBuffer(
rtc::ArrayView<Type> types) {
RTC_CHECK(type() == Type::kNative);
return nullptr;
}
VideoFrameBuffer::Type I420BufferInterface::type() const {
return Type::kI420;
}
const char* VideoFrameBufferTypeToString(VideoFrameBuffer::Type type) {
switch (type) {
case VideoFrameBuffer::Type::kNative:
return "kNative";
case VideoFrameBuffer::Type::kI420:
return "kI420";
case VideoFrameBuffer::Type::kI420A:
return "kI420A";
case VideoFrameBuffer::Type::kI444:
return "kI444";
case VideoFrameBuffer::Type::kI422:
return "kI422";
case VideoFrameBuffer::Type::kI010:
return "kI010";
case VideoFrameBuffer::Type::kI210:
return "kI210";
case VideoFrameBuffer::Type::kI410:
return "kI410";
case VideoFrameBuffer::Type::kNV12:
return "kNV12";
default:
RTC_DCHECK_NOTREACHED();
}
}
int I420BufferInterface::ChromaWidth() const {
return (width() + 1) / 2;
}
int I420BufferInterface::ChromaHeight() const {
return (height() + 1) / 2;
}
rtc::scoped_refptr<I420BufferInterface> I420BufferInterface::ToI420() {
return rtc::scoped_refptr<I420BufferInterface>(this);
}
const I420BufferInterface* I420BufferInterface::GetI420() const {
return this;
}
VideoFrameBuffer::Type I420ABufferInterface::type() const {
return Type::kI420A;
}
VideoFrameBuffer::Type I444BufferInterface::type() const {
return Type::kI444;
}
int I444BufferInterface::ChromaWidth() const {
return width();
}
int I444BufferInterface::ChromaHeight() const {
return height();
}
rtc::scoped_refptr<VideoFrameBuffer> I444BufferInterface::CropAndScale(
int offset_x,
int offset_y,
int crop_width,
int crop_height,
int scaled_width,
int scaled_height) {
rtc::scoped_refptr<I444Buffer> result =
I444Buffer::Create(scaled_width, scaled_height);
result->CropAndScaleFrom(*this, offset_x, offset_y, crop_width, crop_height);
return result;
}
VideoFrameBuffer::Type I422BufferInterface::type() const {
return Type::kI422;
}
int I422BufferInterface::ChromaWidth() const {
return (width() + 1) / 2;
}
int I422BufferInterface::ChromaHeight() const {
return height();
}
rtc::scoped_refptr<VideoFrameBuffer> I422BufferInterface::CropAndScale(
int offset_x,
int offset_y,
int crop_width,
int crop_height,
int scaled_width,
int scaled_height) {
rtc::scoped_refptr<I422Buffer> result =
I422Buffer::Create(scaled_width, scaled_height);
result->CropAndScaleFrom(*this, offset_x, offset_y, crop_width, crop_height);
return result;
}
VideoFrameBuffer::Type I010BufferInterface::type() const {
return Type::kI010;
}
int I010BufferInterface::ChromaWidth() const {
return (width() + 1) / 2;
}
int I010BufferInterface::ChromaHeight() const {
return (height() + 1) / 2;
}
VideoFrameBuffer::Type I210BufferInterface::type() const {
return Type::kI210;
}
int I210BufferInterface::ChromaWidth() const {
return (width() + 1) / 2;
}
int I210BufferInterface::ChromaHeight() const {
return height();
}
VideoFrameBuffer::Type I410BufferInterface::type() const {
return Type::kI410;
}
int I410BufferInterface::ChromaWidth() const {
return width();
}
int I410BufferInterface::ChromaHeight() const {
return height();
}
VideoFrameBuffer::Type NV12BufferInterface::type() const {
return Type::kNV12;
}
int NV12BufferInterface::ChromaWidth() const {
return (width() + 1) / 2;
}
int NV12BufferInterface::ChromaHeight() const {
return (height() + 1) / 2;
}
rtc::scoped_refptr<VideoFrameBuffer> NV12BufferInterface::CropAndScale(
int offset_x,
int offset_y,
int crop_width,
int crop_height,
int scaled_width,
int scaled_height) {
rtc::scoped_refptr<NV12Buffer> result =
NV12Buffer::Create(scaled_width, scaled_height);
result->CropAndScaleFrom(*this, offset_x, offset_y, crop_width, crop_height);
return result;
}
} // namespace webrtc
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