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/*
* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "media/base/fake_frame_source.h"
#include "api/scoped_refptr.h"
#include "api/video/i420_buffer.h"
#include "api/video/video_frame_buffer.h"
#include "rtc_base/checks.h"
#include "rtc_base/time_utils.h"
namespace cricket {
FakeFrameSource::FakeFrameSource(int width,
int height,
int interval_us,
int64_t timestamp_offset_us)
: width_(width),
height_(height),
interval_us_(interval_us),
next_timestamp_us_(timestamp_offset_us) {
RTC_CHECK_GT(width_, 0);
RTC_CHECK_GT(height_, 0);
RTC_CHECK_GT(interval_us_, 0);
RTC_CHECK_GE(next_timestamp_us_, 0);
}
FakeFrameSource::FakeFrameSource(int width, int height, int interval_us)
: FakeFrameSource(width, height, interval_us, rtc::TimeMicros()) {}
webrtc::VideoRotation FakeFrameSource::GetRotation() const {
return rotation_;
}
void FakeFrameSource::SetRotation(webrtc::VideoRotation rotation) {
rotation_ = rotation;
}
webrtc::VideoFrame FakeFrameSource::GetFrameRotationApplied() {
switch (rotation_) {
case webrtc::kVideoRotation_0:
case webrtc::kVideoRotation_180:
return GetFrame(width_, height_, webrtc::kVideoRotation_0, interval_us_);
case webrtc::kVideoRotation_90:
case webrtc::kVideoRotation_270:
return GetFrame(height_, width_, webrtc::kVideoRotation_0, interval_us_);
}
RTC_DCHECK_NOTREACHED() << "Invalid rotation value: "
<< static_cast<int>(rotation_);
// Without this return, the Windows Visual Studio compiler complains
// "not all control paths return a value".
return GetFrame();
}
webrtc::VideoFrame FakeFrameSource::GetFrame() {
return GetFrame(width_, height_, rotation_, interval_us_);
}
webrtc::VideoFrame FakeFrameSource::GetFrame(int width,
int height,
webrtc::VideoRotation rotation,
int interval_us) {
RTC_CHECK_GT(width, 0);
RTC_CHECK_GT(height, 0);
RTC_CHECK_GT(interval_us, 0);
rtc::scoped_refptr<webrtc::I420Buffer> buffer(
webrtc::I420Buffer::Create(width, height));
buffer->InitializeData();
webrtc::VideoFrame frame = webrtc::VideoFrame::Builder()
.set_video_frame_buffer(buffer)
.set_rotation(rotation)
.set_timestamp_us(next_timestamp_us_)
.build();
next_timestamp_us_ += interval_us;
return frame;
}
} // namespace cricket
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