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-rw-r--r-- | third_party/libwebrtc/rtc_tools/frame_analyzer/video_color_aligner.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/third_party/libwebrtc/rtc_tools/frame_analyzer/video_color_aligner.h b/third_party/libwebrtc/rtc_tools/frame_analyzer/video_color_aligner.h new file mode 100644 index 0000000000..b51e06060b --- /dev/null +++ b/third_party/libwebrtc/rtc_tools/frame_analyzer/video_color_aligner.h @@ -0,0 +1,51 @@ +/* + * 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_ |