574eaa4cda
- Add alpha accessors to PlanarYuvBuffer interface, null by defualt. - Add WrapI420ABuffer() that creates a container which implements these accessors. - Show the use via StereoDecoderAdapter. This CL is the step 2 for adding alpha channel support over the wire in webrtc. See https://webrtc-review.googlesource.com/c/src/+/7800 for the experimental CL that gives an idea about how it will come together. Design Doc: https://goo.gl/sFeSUT Bug: webrtc:7671 Change-Id: Id5691cde00088ec811b63d89080d33ad2d6e3939 Reviewed-on: https://webrtc-review.googlesource.com/21130 Reviewed-by: Magnus Jedvert <magjed@webrtc.org> Commit-Queue: Emircan Uysaler <emircan@webrtc.org> Cr-Commit-Position: refs/heads/master@{#20635}
94 lines
2.6 KiB
C++
94 lines
2.6 KiB
C++
/*
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* Copyright (c) 2017 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/video_frame_buffer.h"
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#include "libyuv/convert.h"
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#include "api/video/i420_buffer.h"
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#include "rtc_base/checks.h"
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namespace webrtc {
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rtc::scoped_refptr<I420BufferInterface> VideoFrameBuffer::GetI420() {
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RTC_CHECK(type() == Type::kI420);
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return static_cast<I420BufferInterface*>(this);
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}
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rtc::scoped_refptr<const I420BufferInterface> VideoFrameBuffer::GetI420()
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const {
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RTC_CHECK(type() == Type::kI420);
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return static_cast<const I420BufferInterface*>(this);
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}
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I420ABufferInterface* VideoFrameBuffer::GetI420A() {
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RTC_CHECK(type() == Type::kI420A);
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return static_cast<I420ABufferInterface*>(this);
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}
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const I420ABufferInterface* VideoFrameBuffer::GetI420A() const {
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RTC_CHECK(type() == Type::kI420A);
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return static_cast<const I420ABufferInterface*>(this);
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}
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I444BufferInterface* VideoFrameBuffer::GetI444() {
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RTC_CHECK(type() == Type::kI444);
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return static_cast<I444BufferInterface*>(this);
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}
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const I444BufferInterface* VideoFrameBuffer::GetI444() const {
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RTC_CHECK(type() == Type::kI444);
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return static_cast<const I444BufferInterface*>(this);
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}
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VideoFrameBuffer::Type I420BufferInterface::type() const {
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return Type::kI420;
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}
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int I420BufferInterface::ChromaWidth() const {
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return (width() + 1) / 2;
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}
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int I420BufferInterface::ChromaHeight() const {
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return (height() + 1) / 2;
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}
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rtc::scoped_refptr<I420BufferInterface> I420BufferInterface::ToI420() {
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return this;
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}
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VideoFrameBuffer::Type I420ABufferInterface::type() const {
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return Type::kI420A;
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}
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VideoFrameBuffer::Type I444BufferInterface::type() const {
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return Type::kI444;
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}
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int I444BufferInterface::ChromaWidth() const {
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return width();
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}
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int I444BufferInterface::ChromaHeight() const {
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return height();
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}
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rtc::scoped_refptr<I420BufferInterface> I444BufferInterface::ToI420() {
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rtc::scoped_refptr<I420Buffer> i420_buffer =
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I420Buffer::Create(width(), height());
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libyuv::I444ToI420(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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} // namespace webrtc
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