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9349efba14
Includes some side 80 columns fix. MozReview-Commit-ID: IXRoQfM0Hjc --HG-- extra : rebase_source : 918cf87b2ce82c8de245dcb23cc359289ac5f21f
95 lines
3.8 KiB
C++
95 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set sw=2 ts=8 et ft=cpp : */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "VideoFrameUtils.h"
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#include "webrtc/video_frame.h"
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#include "mozilla/ShmemPool.h"
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namespace mozilla {
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size_t
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VideoFrameUtils::TotalRequiredBufferSize(
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const webrtc::VideoFrame& aVideoFrame)
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{
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auto height = aVideoFrame.video_frame_buffer()->height();
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return height * aVideoFrame.video_frame_buffer()->StrideY() +
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((height+1)/2) * aVideoFrame.video_frame_buffer()->StrideU() +
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((height+1)/2) * aVideoFrame.video_frame_buffer()->StrideV();
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}
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void VideoFrameUtils::InitFrameBufferProperties(
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const webrtc::VideoFrame& aVideoFrame,
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camera::VideoFrameProperties& aDestProps)
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{
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// The VideoFrameBuffer image data stored in the accompanying buffer
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// the buffer is at least this size of larger.
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aDestProps.bufferSize() = TotalRequiredBufferSize(aVideoFrame);
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aDestProps.timeStamp() = aVideoFrame.timestamp();
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aDestProps.ntpTimeMs() = aVideoFrame.ntp_time_ms();
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aDestProps.renderTimeMs() = aVideoFrame.render_time_ms();
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aDestProps.rotation() = aVideoFrame.rotation();
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auto height = aVideoFrame.video_frame_buffer()->height();
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aDestProps.yAllocatedSize() = height * aVideoFrame.video_frame_buffer()->StrideY();
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aDestProps.uAllocatedSize() = ((height+1)/2) * aVideoFrame.video_frame_buffer()->StrideU();
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aDestProps.vAllocatedSize() = ((height+1)/2) * aVideoFrame.video_frame_buffer()->StrideV();
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aDestProps.width() = aVideoFrame.video_frame_buffer()->width();
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aDestProps.height() = height;
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aDestProps.yStride() = aVideoFrame.video_frame_buffer()->StrideY();
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aDestProps.uStride() = aVideoFrame.video_frame_buffer()->StrideU();
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aDestProps.vStride() = aVideoFrame.video_frame_buffer()->StrideV();
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}
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void VideoFrameUtils::CopyVideoFrameBuffers(uint8_t* aDestBuffer,
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const size_t aDestBufferSize,
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const webrtc::VideoFrame& aFrame)
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{
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size_t aggregateSize = TotalRequiredBufferSize(aFrame);
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MOZ_ASSERT(aDestBufferSize >= aggregateSize);
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// If planes are ordered YUV and contiguous then do a single copy
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if ((aFrame.video_frame_buffer()->DataY() != nullptr) &&
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// Check that the three planes are ordered
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(aFrame.video_frame_buffer()->DataY()
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< aFrame.video_frame_buffer()->DataU()) &&
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(aFrame.video_frame_buffer()->DataU()
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< aFrame.video_frame_buffer()->DataV()) &&
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// Check that the last plane ends at firstPlane[totalsize]
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(&aFrame.video_frame_buffer()->DataY()[aggregateSize] ==
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&aFrame.video_frame_buffer()
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->DataV()[((aFrame.video_frame_buffer()->height() + 1) / 2)
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* aFrame.video_frame_buffer()->StrideV()])) {
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memcpy(aDestBuffer, aFrame.video_frame_buffer()->DataY(), aggregateSize);
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return;
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}
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// Copy each plane
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size_t offset = 0;
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size_t size;
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auto height = aFrame.video_frame_buffer()->height();
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size = height * aFrame.video_frame_buffer()->StrideY();
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memcpy(&aDestBuffer[offset], aFrame.video_frame_buffer()->DataY(), size);
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offset += size;
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size = ((height+1)/2) * aFrame.video_frame_buffer()->StrideU();
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memcpy(&aDestBuffer[offset], aFrame.video_frame_buffer()->DataU(), size);
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offset += size;
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size = ((height+1)/2) * aFrame.video_frame_buffer()->StrideV();
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memcpy(&aDestBuffer[offset], aFrame.video_frame_buffer()->DataV(), size);
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}
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void VideoFrameUtils::CopyVideoFrameBuffers(ShmemBuffer& aDestShmem,
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const webrtc::VideoFrame& aVideoFrame)
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{
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CopyVideoFrameBuffers(aDestShmem.Get().get<uint8_t>(), aDestShmem.Get().Size<uint8_t>(), aVideoFrame);
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}
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}
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