webrtc_m130/webrtc/media/engine/webrtcvideoframefactory.cc

31 lines
1022 B
C++
Raw Normal View History

/*
* Copyright (c) 2014 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 <memory>
#include "webrtc/base/logging.h"
#include "webrtc/media/engine/webrtcvideoframe.h"
#include "webrtc/media/engine/webrtcvideoframefactory.h"
namespace cricket {
VideoFrame* WebRtcVideoFrameFactory::CreateAliasedFrame(
const CapturedFrame* aliased_frame, int width, int height) const {
std::unique_ptr<WebRtcVideoFrame> frame(new WebRtcVideoFrame());
Revert 8599 "Revert 8580 "Unify underlying frame buffer in I420VideoFrame and..."" It's possible to build Chrome on Windows with this patch now. BUG=1128 > This is unfortunately causing build problems in Chrome on Windows. >> Unify underlying frame buffer in I420VideoFrame and WebRtcVideoFrame >> >> Currently, I420VideoFrame uses three webrtc::Plane to store pixel data, and WebRtcVideoFrame uses WebRtcVideoFrame::FrameBuffer/webrtc::VideoFrame. The two subclasses WebRtcTextureVideoFrame and TextureVideoFrame use a NativeHandle to store pixel data, and there is also a class WebRtcVideoRenderFrame that wraps an I420VideoFrame. >> >> This CL replaces these classes with a new interface VideoFrameBuffer that provides the common functionality. This makes it possible to remove deep frame copies between cricket::VideoFrame and I420VideoFrame. >> >> Some additional minor changes are: >> * Disallow creation of 0x0 texture frames. >> * Remove the half-implemented ref count functions in I420VideoFrame. >> * Remove the Alias functionality in WebRtcVideoFrame >> >> The final goal is to eliminate all frame copies, but to limit the scope of this CL, some planned changes are postponed to follow-up CL:s (see planned changes in https://webrtc-codereview.appspot.com/38879004, or https://docs.google.com/document/d/1bxoJZNmlo-Z9GnQwIaWpEG6hDlL_W-bzka8Zb_K2NbA/preview). Specifically, this CL: >> * Keeps empty subclasses WebRtcTextureVideoFrame and TextureVideoFrame, and just delegates the construction to the superclass. >> * Keeps the deep copies from cricket::VideoFrame to I420VideoFrame. >> >> BUG=1128 >> R=mflodman@webrtc.org, pbos@webrtc.org, perkj@webrtc.org, tommi@webrtc.org >> >> Review URL: https://webrtc-codereview.appspot.com/42469004 R=pbos@webrtc.org TBR=mflodman, pbos, perkj, tommi Review URL: https://webrtc-codereview.appspot.com/45489004 Cr-Commit-Position: refs/heads/master@{#8616} git-svn-id: http://webrtc.googlecode.com/svn/trunk@8616 4adac7df-926f-26a2-2b94-8c16560cd09d
2015-03-05 14:03:08 +00:00
if (!frame->Init(aliased_frame, width, height, apply_rotation_)) {
LOG(LS_ERROR) <<
"Failed to create WebRtcVideoFrame in CreateAliasedFrame.";
return NULL;
}
return frame.release();
}
} // namespace cricket