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42eec3db27
To be used in tests. Bug: none Change-Id: Ia7b551b3ac66ed23d1907df56ddc4e09e3667a2b Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/245644 Reviewed-by: Artem Titov <titovartem@webrtc.org> Commit-Queue: Åsa Persson <asapersson@webrtc.org> Cr-Commit-Position: refs/heads/main@{#35703}
107 lines
3.4 KiB
C++
107 lines
3.4 KiB
C++
/*
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* Copyright (c) 2017 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 "test/test_video_capturer.h"
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#include <algorithm>
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#include "api/scoped_refptr.h"
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#include "api/video/i420_buffer.h"
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#include "api/video/video_frame_buffer.h"
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#include "api/video/video_rotation.h"
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namespace webrtc {
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namespace test {
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TestVideoCapturer::~TestVideoCapturer() = default;
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void TestVideoCapturer::OnOutputFormatRequest(
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int width,
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int height,
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const absl::optional<int>& max_fps) {
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absl::optional<std::pair<int, int>> target_aspect_ratio =
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std::make_pair(width, height);
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absl::optional<int> max_pixel_count = width * height;
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video_adapter_.OnOutputFormatRequest(target_aspect_ratio, max_pixel_count,
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max_fps);
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}
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void TestVideoCapturer::OnFrame(const VideoFrame& original_frame) {
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int cropped_width = 0;
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int cropped_height = 0;
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int out_width = 0;
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int out_height = 0;
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VideoFrame frame = MaybePreprocess(original_frame);
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if (!video_adapter_.AdaptFrameResolution(
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frame.width(), frame.height(), frame.timestamp_us() * 1000,
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&cropped_width, &cropped_height, &out_width, &out_height)) {
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// Drop frame in order to respect frame rate constraint.
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return;
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}
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if (out_height != frame.height() || out_width != frame.width()) {
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// Video adapter has requested a down-scale. Allocate a new buffer and
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// return scaled version.
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// For simplicity, only scale here without cropping.
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rtc::scoped_refptr<I420Buffer> scaled_buffer =
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I420Buffer::Create(out_width, out_height);
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scaled_buffer->ScaleFrom(*frame.video_frame_buffer()->ToI420());
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VideoFrame::Builder new_frame_builder =
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VideoFrame::Builder()
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.set_video_frame_buffer(scaled_buffer)
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.set_rotation(kVideoRotation_0)
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.set_timestamp_us(frame.timestamp_us())
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.set_id(frame.id());
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if (frame.has_update_rect()) {
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VideoFrame::UpdateRect new_rect = frame.update_rect().ScaleWithFrame(
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frame.width(), frame.height(), 0, 0, frame.width(), frame.height(),
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out_width, out_height);
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new_frame_builder.set_update_rect(new_rect);
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}
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broadcaster_.OnFrame(new_frame_builder.build());
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} else {
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// No adaptations needed, just return the frame as is.
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broadcaster_.OnFrame(frame);
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}
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}
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rtc::VideoSinkWants TestVideoCapturer::GetSinkWants() {
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return broadcaster_.wants();
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}
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void TestVideoCapturer::AddOrUpdateSink(
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rtc::VideoSinkInterface<VideoFrame>* sink,
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const rtc::VideoSinkWants& wants) {
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broadcaster_.AddOrUpdateSink(sink, wants);
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UpdateVideoAdapter();
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}
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void TestVideoCapturer::RemoveSink(rtc::VideoSinkInterface<VideoFrame>* sink) {
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broadcaster_.RemoveSink(sink);
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UpdateVideoAdapter();
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}
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void TestVideoCapturer::UpdateVideoAdapter() {
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video_adapter_.OnSinkWants(broadcaster_.wants());
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}
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VideoFrame TestVideoCapturer::MaybePreprocess(const VideoFrame& frame) {
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MutexLock lock(&lock_);
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if (preprocessor_ != nullptr) {
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return preprocessor_->Preprocess(frame);
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} else {
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return frame;
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}
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}
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} // namespace test
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} // namespace webrtc
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