712338eed2
VideoFrameBuffer is currently hard coded to be either I420 or Native. This CL makes VideoFrameBuffer more generic by moving the I420 specific functions into their own class, and adds an enum tag that represents the format and storage type of the buffer. Each buffer type is then represented as a subclass. See webrtc/api/video/video_frame_buffer.h for more info. This CL also adds support for representing I444 in VideoFrameBuffer using the new interface. Possible future buffer type candidates are RGB and NV12. BUG=webrtc:7632 TBR=stefan@webrtc.org Review-Url: https://codereview.webrtc.org/2847383002 Cr-Commit-Position: refs/heads/master@{#18098}
132 lines
3.4 KiB
C++
132 lines
3.4 KiB
C++
/*
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* Copyright (c) 2015 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 "webrtc/common_video/include/video_frame_buffer.h"
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#include <string.h>
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#include <algorithm>
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#include "webrtc/base/checks.h"
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#include "webrtc/base/keep_ref_until_done.h"
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#include "libyuv/convert.h"
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#include "libyuv/planar_functions.h"
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#include "libyuv/scale.h"
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namespace webrtc {
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NativeHandleBuffer::NativeHandleBuffer(void* native_handle,
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int width,
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int height)
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: native_handle_(native_handle), width_(width), height_(height) {
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RTC_DCHECK(native_handle != nullptr);
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RTC_DCHECK_GT(width, 0);
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RTC_DCHECK_GT(height, 0);
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}
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VideoFrameBuffer::Type NativeHandleBuffer::type() const {
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return Type::kNative;
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}
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int NativeHandleBuffer::width() const {
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return width_;
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}
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int NativeHandleBuffer::height() const {
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return height_;
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}
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const uint8_t* NativeHandleBuffer::DataY() const {
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RTC_NOTREACHED(); // Should not be called.
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return nullptr;
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}
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const uint8_t* NativeHandleBuffer::DataU() const {
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RTC_NOTREACHED(); // Should not be called.
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return nullptr;
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}
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const uint8_t* NativeHandleBuffer::DataV() const {
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RTC_NOTREACHED(); // Should not be called.
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return nullptr;
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}
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int NativeHandleBuffer::StrideY() const {
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RTC_NOTREACHED(); // Should not be called.
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return 0;
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}
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int NativeHandleBuffer::StrideU() const {
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RTC_NOTREACHED(); // Should not be called.
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return 0;
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}
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int NativeHandleBuffer::StrideV() const {
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RTC_NOTREACHED(); // Should not be called.
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return 0;
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}
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void* NativeHandleBuffer::native_handle() const {
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return native_handle_;
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}
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WrappedI420Buffer::WrappedI420Buffer(int width,
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int height,
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const uint8_t* y_plane,
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int y_stride,
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const uint8_t* u_plane,
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int u_stride,
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const uint8_t* v_plane,
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int v_stride,
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const rtc::Callback0<void>& no_longer_used)
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: width_(width),
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height_(height),
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y_plane_(y_plane),
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u_plane_(u_plane),
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v_plane_(v_plane),
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y_stride_(y_stride),
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u_stride_(u_stride),
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v_stride_(v_stride),
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no_longer_used_cb_(no_longer_used) {
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}
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WrappedI420Buffer::~WrappedI420Buffer() {
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no_longer_used_cb_();
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}
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VideoFrameBuffer::Type WrappedI420Buffer::type() const {
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return Type::kI420;
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}
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int WrappedI420Buffer::width() const {
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return width_;
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}
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int WrappedI420Buffer::height() const {
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return height_;
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}
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const uint8_t* WrappedI420Buffer::DataY() const {
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return y_plane_;
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}
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const uint8_t* WrappedI420Buffer::DataU() const {
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return u_plane_;
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}
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const uint8_t* WrappedI420Buffer::DataV() const {
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return v_plane_;
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}
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int WrappedI420Buffer::StrideY() const {
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return y_stride_;
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}
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int WrappedI420Buffer::StrideU() const {
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return u_stride_;
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}
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int WrappedI420Buffer::StrideV() const {
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return v_stride_;
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}
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} // namespace webrtc
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