1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
/*
* 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.
*/
#ifndef RTC_TOOLS_FRAME_ANALYZER_VIDEO_COLOR_ALIGNER_H_
#define RTC_TOOLS_FRAME_ANALYZER_VIDEO_COLOR_ALIGNER_H_
#include <array>
#include "api/scoped_refptr.h"
#include "api/video/video_frame_buffer.h"
#include "rtc_tools/video_file_reader.h"
namespace webrtc {
namespace test {
// Represents a linear color transformation from [y, u, v] to [y', u', v']
// through the equation: [y', u', v'] = [y, u, v, 1] * matrix.
using ColorTransformationMatrix = std::array<std::array<float, 4>, 3>;
// Calculate the optimal color transformation that should be applied to the test
// video to match as closely as possible to the reference video.
ColorTransformationMatrix CalculateColorTransformationMatrix(
const rtc::scoped_refptr<Video>& reference_video,
const rtc::scoped_refptr<Video>& test_video);
// Calculate color transformation for a single I420 frame.
ColorTransformationMatrix CalculateColorTransformationMatrix(
const rtc::scoped_refptr<I420BufferInterface>& reference_frame,
const rtc::scoped_refptr<I420BufferInterface>& test_frame);
// Apply a color transformation to a video.
rtc::scoped_refptr<Video> AdjustColors(
const ColorTransformationMatrix& color_matrix,
const rtc::scoped_refptr<Video>& video);
// Apply a color transformation to a single I420 frame.
rtc::scoped_refptr<I420BufferInterface> AdjustColors(
const ColorTransformationMatrix& color_matrix,
const rtc::scoped_refptr<I420BufferInterface>& frame);
} // namespace test
} // namespace webrtc
#endif // RTC_TOOLS_FRAME_ANALYZER_VIDEO_COLOR_ALIGNER_H_
|
