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Refactor VideoDenoiser to use a buffer pool, replacing explicit double buffering.

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Also improve denoiser to not assume identical stride of all involved
frames, and delete the no longer needed function I420Buffer::CopyKeepStride.

BUG=None

Review-Url: https://codereview.webrtc.org/2469763002
Cr-Commit-Position: refs/heads/master@{#14940}
This commit is contained in:
nisse
2016-11-07 01:34:59 -08:00
committed by Commit bot
parent c97d1150f2
commit 18ee17d1e7
14 changed files with 116 additions and 178 deletions
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21
webrtc/modules/video_processing/frame_preprocessor.cc
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@ -19,7 +19,6 @@ VPMFramePreprocessor::VPMFramePreprocessor()
spatial_resampler_ = new VPMSimpleSpatialResampler();
vd_ = new VPMVideoDecimator();
EnableDenoising(false);
denoised_frame_toggle_ = 0;
}
VPMFramePreprocessor::~VPMFramePreprocessor() {
@ -96,22 +95,10 @@ const VideoFrame* VPMFramePreprocessor::PreprocessFrame(
const VideoFrame* current_frame = &frame;
if (denoiser_) {
rtc::scoped_refptr<I420Buffer>* denoised_buffer = &denoised_buffer_[0];
rtc::scoped_refptr<I420Buffer>* denoised_buffer_prev = &denoised_buffer_[1];
// Swap the buffer to save one memcpy in DenoiseFrame.
if (denoised_frame_toggle_) {
denoised_buffer = &denoised_buffer_[1];
denoised_buffer_prev = &denoised_buffer_[0];
}
// Invert the flag.
denoised_frame_toggle_ ^= 1;
denoiser_->DenoiseFrame(current_frame->video_frame_buffer(),
denoised_buffer,
denoised_buffer_prev, true);
denoised_frame_ = VideoFrame(*denoised_buffer,
current_frame->timestamp(),
current_frame->render_time_ms(),
current_frame->rotation());
denoised_frame_ = VideoFrame(
denoiser_->DenoiseFrame(current_frame->video_frame_buffer(), true),
current_frame->timestamp(), current_frame->render_time_ms(),
current_frame->rotation());
current_frame = &denoised_frame_;
}