88 lines
2.9 KiB
C++
88 lines
2.9 KiB
C++
/*
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* Copyright (c) 2018 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 "media/base/fake_frame_source.h"
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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 "rtc_base/checks.h"
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#include "rtc_base/time_utils.h"
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namespace cricket {
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FakeFrameSource::FakeFrameSource(int width,
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int height,
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int interval_us,
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int64_t timestamp_offset_us)
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: width_(width),
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height_(height),
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interval_us_(interval_us),
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next_timestamp_us_(timestamp_offset_us) {
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RTC_CHECK_GT(width_, 0);
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RTC_CHECK_GT(height_, 0);
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RTC_CHECK_GT(interval_us_, 0);
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RTC_CHECK_GE(next_timestamp_us_, 0);
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}
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FakeFrameSource::FakeFrameSource(int width, int height, int interval_us)
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: FakeFrameSource(width, height, interval_us, rtc::TimeMicros()) {}
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webrtc::VideoRotation FakeFrameSource::GetRotation() const {
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return rotation_;
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}
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void FakeFrameSource::SetRotation(webrtc::VideoRotation rotation) {
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rotation_ = rotation;
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}
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webrtc::VideoFrame FakeFrameSource::GetFrameRotationApplied() {
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switch (rotation_) {
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case webrtc::kVideoRotation_0:
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case webrtc::kVideoRotation_180:
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return GetFrame(width_, height_, webrtc::kVideoRotation_0, interval_us_);
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case webrtc::kVideoRotation_90:
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case webrtc::kVideoRotation_270:
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return GetFrame(height_, width_, webrtc::kVideoRotation_0, interval_us_);
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}
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RTC_NOTREACHED() << "Invalid rotation value: " << static_cast<int>(rotation_);
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// Without this return, the Windows Visual Studio compiler complains
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// "not all control paths return a value".
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return GetFrame();
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}
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webrtc::VideoFrame FakeFrameSource::GetFrame() {
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return GetFrame(width_, height_, rotation_, interval_us_);
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}
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webrtc::VideoFrame FakeFrameSource::GetFrame(int width,
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int height,
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webrtc::VideoRotation rotation,
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int interval_us) {
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RTC_CHECK_GT(width, 0);
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RTC_CHECK_GT(height, 0);
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RTC_CHECK_GT(interval_us, 0);
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rtc::scoped_refptr<webrtc::I420Buffer> buffer(
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webrtc::I420Buffer::Create(width, height));
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buffer->InitializeData();
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webrtc::VideoFrame frame = webrtc::VideoFrame::Builder()
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.set_video_frame_buffer(buffer)
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.set_rotation(rotation)
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.set_timestamp_us(next_timestamp_us_)
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.build();
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next_timestamp_us_ += interval_us;
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return frame;
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}
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} // namespace cricket
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