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8037fc6ffa
Bug: webrtc:342905193 No-Try: True Change-Id: Icc968be43b8830038ea9a1f5f604307220457807 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/361021 Auto-Submit: Florent Castelli <orphis@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Florent Castelli <orphis@webrtc.org> Cr-Commit-Position: refs/heads/main@{#42911}
42 lines
1.6 KiB
C++
42 lines
1.6 KiB
C++
/*
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* Copyright (c) 2020 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 VIDEO_ALIGNMENT_ADJUSTER_H_
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#define VIDEO_ALIGNMENT_ADJUSTER_H_
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#include "api/video_codecs/video_encoder.h"
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#include "video/config/video_encoder_config.h"
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namespace webrtc {
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class AlignmentAdjuster {
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public:
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// Returns the resolution alignment requested by the encoder (i.e
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// `EncoderInfo::requested_resolution_alignment` which ensures that delivered
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// frames to the encoder are divisible by this alignment).
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//
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// If `EncoderInfo::apply_alignment_to_all_simulcast_layers` is enabled, the
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// alignment will be adjusted to ensure that each simulcast layer also is
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// divisible by `requested_resolution_alignment`. The configured scale factors
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// `scale_resolution_down_by` may be adjusted to a common multiple to limit
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// the alignment value to avoid largely cropped frames and possibly with an
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// aspect ratio far from the original.
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// Note: `max_layers` currently only taken into account when using default
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// scale factors.
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static int GetAlignmentAndMaybeAdjustScaleFactors(
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const VideoEncoder::EncoderInfo& info,
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VideoEncoderConfig* config,
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std::optional<size_t> max_layers);
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};
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} // namespace webrtc
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#endif // VIDEO_ALIGNMENT_ADJUSTER_H_
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