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62228c41ea
This is a reland of b2c0e8f60f
Original change's description:
> Add tool for aliging video files
>
> This class adds logic for aligning a test video to a reference video
> by an algorithm that maximizes SSIM between them. Aligned videos will be
> easier to run video quality metrics on. This is a generic way of
> aligning videos and can be replace the intrusive barcode stamping that
> we currently use. This will be done in a follow-up CL.
>
> Change-Id: I71cf1e2179c0f1e03eff9e4d8fc492fd5cfbbb1c
> Bug: webrtc:9642
> Reviewed-on: https://webrtc-review.googlesource.com/94773
> Commit-Queue: Magnus Jedvert <magjed@webrtc.org>
> Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
> Reviewed-by: Paulina Hensman <phensman@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#24407}
TBR=phensman,phoglund
Bug: webrtc:9642
Change-Id: I35d6b0e598335b8d80fbfa37ba06d5c651bda4f6
Reviewed-on: https://webrtc-review.googlesource.com/98040
Commit-Queue: Magnus Jedvert <magjed@webrtc.org>
Reviewed-by: Magnus Jedvert <magjed@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24580}
53 lines
2.4 KiB
C++
53 lines
2.4 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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#ifndef RTC_TOOLS_FRAME_ANALYZER_VIDEO_TEMPORAL_ALIGNER_H_
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#define RTC_TOOLS_FRAME_ANALYZER_VIDEO_TEMPORAL_ALIGNER_H_
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#include <vector>
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#include "rtc_tools/video_file_reader.h"
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namespace webrtc {
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namespace test {
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// Returns a vector with the same size as the given test video. Each index
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// corresponds to what reference frame that test frame matches to. These
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// indices are strictly increasing and might loop around the reference video,
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// e.g. their values can be bigger than the number of frames in the reference
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// video and they should be interpreted modulo that size. The matching frames
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// will be determined by maximizing SSIM.
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std::vector<size_t> FindMatchingFrameIndices(
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const rtc::scoped_refptr<Video>& reference_video,
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const rtc::scoped_refptr<Video>& test_video);
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// Generate a new video using the frames from the original video. The returned
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// video will have the same number of frames as the size of |indices|, and
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// frame nr i in the returned video will point to frame nr indices[i] in the
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// original video.
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rtc::scoped_refptr<Video> ReorderVideo(const rtc::scoped_refptr<Video>& video,
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const std::vector<size_t>& indices);
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// Returns a modified version of the reference video where the frames have
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// been aligned to the test video. The test video is assumed to be captured
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// during a quality measurement test where the reference video is the source.
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// The test video may start at an arbitrary position in the reference video
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// and there might be missing frames. The reference video is assumed to loop
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// over when it reaches the end. The returned result is a version of the
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// reference video where the missing frames are left out so it aligns to the
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// test video.
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rtc::scoped_refptr<Video> GenerateAlignedReferenceVideo(
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const rtc::scoped_refptr<Video>& reference_video,
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const rtc::scoped_refptr<Video>& test_video);
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} // namespace test
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} // namespace webrtc
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#endif // RTC_TOOLS_FRAME_ANALYZER_VIDEO_TEMPORAL_ALIGNER_H_
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