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/*
* Copyright (c) 2013 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.
*/
#ifndef TEST_FRAME_GENERATOR_H_
#define TEST_FRAME_GENERATOR_H_
#include <memory>
#include <string>
#include <vector>
#include "api/scoped_refptr.h"
#include "api/test/frame_generator_interface.h"
#include "api/video/i420_buffer.h"
#include "api/video/video_frame.h"
#include "api/video/video_frame_buffer.h"
#include "api/video/video_source_interface.h"
#include "rtc_base/random.h"
#include "rtc_base/synchronization/mutex.h"
#include "system_wrappers/include/clock.h"
namespace webrtc {
namespace test {
// SquareGenerator is a FrameGenerator that draws a given amount of randomly
// sized and colored squares. Between each new generated frame, the squares
// are moved slightly towards the lower right corner.
class SquareGenerator : public FrameGeneratorInterface {
public:
SquareGenerator(int width, int height, OutputType type, int num_squares);
void ChangeResolution(size_t width, size_t height) override;
VideoFrameData NextFrame() override;
private:
rtc::scoped_refptr<I420Buffer> CreateI420Buffer(int width, int height);
class Square {
public:
Square(int width, int height, int seed);
void Draw(const rtc::scoped_refptr<VideoFrameBuffer>& frame_buffer);
private:
Random random_generator_;
int x_;
int y_;
const int length_;
const uint8_t yuv_y_;
const uint8_t yuv_u_;
const uint8_t yuv_v_;
const uint8_t yuv_a_;
};
Mutex mutex_;
const OutputType type_;
int width_ RTC_GUARDED_BY(&mutex_);
int height_ RTC_GUARDED_BY(&mutex_);
std::vector<std::unique_ptr<Square>> squares_ RTC_GUARDED_BY(&mutex_);
};
class YuvFileGenerator : public FrameGeneratorInterface {
public:
YuvFileGenerator(std::vector<FILE*> files,
size_t width,
size_t height,
int frame_repeat_count);
~YuvFileGenerator();
VideoFrameData NextFrame() override;
void ChangeResolution(size_t width, size_t height) override {
RTC_NOTREACHED();
}
private:
// Returns true if the new frame was loaded.
// False only in case of a single file with a single frame in it.
bool ReadNextFrame();
size_t file_index_;
size_t frame_index_;
const std::vector<FILE*> files_;
const size_t width_;
const size_t height_;
const size_t frame_size_;
const std::unique_ptr<uint8_t[]> frame_buffer_;
const int frame_display_count_;
int current_display_count_;
rtc::scoped_refptr<I420Buffer> last_read_buffer_;
};
// SlideGenerator works similarly to YuvFileGenerator but it fills the frames
// with randomly sized and colored squares instead of reading their content
// from files.
class SlideGenerator : public FrameGeneratorInterface {
public:
SlideGenerator(int width, int height, int frame_repeat_count);
VideoFrameData NextFrame() override;
void ChangeResolution(size_t width, size_t height) override {
RTC_NOTREACHED();
}
private:
// Generates some randomly sized and colored squares scattered
// over the frame.
void GenerateNewFrame();
const int width_;
const int height_;
const int frame_display_count_;
int current_display_count_;
Random random_generator_;
rtc::scoped_refptr<I420Buffer> buffer_;
};
class ScrollingImageFrameGenerator : public FrameGeneratorInterface {
public:
ScrollingImageFrameGenerator(Clock* clock,
const std::vector<FILE*>& files,
size_t source_width,
size_t source_height,
size_t target_width,
size_t target_height,
int64_t scroll_time_ms,
int64_t pause_time_ms);
~ScrollingImageFrameGenerator() override = default;
VideoFrameData NextFrame() override;
void ChangeResolution(size_t width, size_t height) override {
RTC_NOTREACHED();
}
private:
void UpdateSourceFrame(size_t frame_num);
void CropSourceToScrolledImage(double scroll_factor);
Clock* const clock_;
const int64_t start_time_;
const int64_t scroll_time_;
const int64_t pause_time_;
const size_t num_frames_;
const int target_width_;
const int target_height_;
size_t current_frame_num_;
bool prev_frame_not_scrolled_;
VideoFrameData current_source_frame_;
VideoFrameData current_frame_;
YuvFileGenerator file_generator_;
};
} // namespace test
} // namespace webrtc
#endif // TEST_FRAME_GENERATOR_H_
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