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Reland: Add Alpha Channel Support For WebRTC Unity Plugin

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This CL make webrtc unity plugin compatible with alpha channel support.

TBR=gyzhou@chromium.org,magjed@webrtc.org

Bug: webrtc:8645
Change-Id: Ic1c11f8c82f8244b84b8ab67c623ad2002b940e8
Reviewed-on: https://webrtc-review.googlesource.com/35421
Reviewed-by: George Zhou <gyzhou@chromium.org>
Reviewed-by: Qiang Chen <qiangchen@chromium.org>
Commit-Queue: Qiang Chen <qiangchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#21398}
This commit is contained in:
Qiang Chen
2017-12-20 10:47:36 -08:00
committed by Commit Bot
parent d2b912aed1
commit 43fb912318
7 changed files with 51 additions and 9 deletions
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27
examples/unityplugin/video_observer.cc
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@ -17,11 +17,28 @@ void VideoObserver::SetVideoCallback(I420FRAMEREADY_CALLBACK callback) {
void VideoObserver::OnFrame(const webrtc::VideoFrame& frame) {
std::unique_lock<std::mutex> lock(mutex);
rtc::scoped_refptr<webrtc::PlanarYuvBuffer> buffer(
frame.video_frame_buffer()->ToI420());
if (OnI420FrameReady) {
OnI420FrameReady(buffer->DataY(), buffer->DataU(), buffer->DataV(),
buffer->StrideY(), buffer->StrideU(), buffer->StrideV(),
if (!OnI420FrameReady)
return;
rtc::scoped_refptr<webrtc::VideoFrameBuffer> buffer(
frame.video_frame_buffer());
if (buffer->type() != webrtc::VideoFrameBuffer::Type::kI420A) {
rtc::scoped_refptr<webrtc::I420BufferInterface> i420_buffer =
buffer->ToI420();
OnI420FrameReady(i420_buffer->DataY(), i420_buffer->DataU(),
i420_buffer->DataV(), nullptr, i420_buffer->StrideY(),
i420_buffer->StrideU(), i420_buffer->StrideV(), 0,
frame.width(), frame.height());
} else {
// The buffer has alpha channel.
webrtc::I420ABufferInterface* i420a_buffer = buffer->GetI420A();
OnI420FrameReady(i420a_buffer->DataY(), i420a_buffer->DataU(),
i420a_buffer->DataV(), i420a_buffer->DataA(),
i420a_buffer->StrideY(), i420a_buffer->StrideU(),
i420a_buffer->StrideV(), i420a_buffer->StrideA(),
frame.width(), frame.height());
}
}