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111e981466
This feature is active if and only if the RTP header extension playout-delay is used with min playout delay=0 and max playout delay>0. In this case, a maximum composition delay will be calculated and attached to the video frame as a signal to use the low-latency renderer algorithm, which is landed in a separate CL in Chromium. The maximum composition delay is specified in number of frames and is calculated based on the max playout delay. The feature can be completetly disabled by specifying the field trial WebRTC-LowLatencyRenderer/enabled:false/ Bug: chromium:1138888 Change-Id: I05f461982d0632bd6e09e5d7ec1a8985dccdc61b Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/190141 Reviewed-by: Niels Moller <nisse@webrtc.org> Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> Commit-Queue: Johannes Kron <kron@webrtc.org> Cr-Commit-Position: refs/heads/master@{#32493}
132 lines
3.7 KiB
C++
132 lines
3.7 KiB
C++
/*
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* Copyright (c) 2011 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 MODULES_VIDEO_CODING_ENCODED_FRAME_H_
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#define MODULES_VIDEO_CODING_ENCODED_FRAME_H_
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#include <vector>
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#include "api/video/encoded_image.h"
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#include "modules/rtp_rtcp/source/rtp_video_header.h"
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#include "modules/video_coding/include/video_codec_interface.h"
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#include "modules/video_coding/include/video_coding_defines.h"
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#include "rtc_base/system/rtc_export.h"
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namespace webrtc {
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class RTC_EXPORT VCMEncodedFrame : protected EncodedImage {
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public:
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VCMEncodedFrame();
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VCMEncodedFrame(const VCMEncodedFrame&);
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~VCMEncodedFrame();
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/**
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* Set render time in milliseconds
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*/
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void SetRenderTime(const int64_t renderTimeMs) {
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_renderTimeMs = renderTimeMs;
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}
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VideoPlayoutDelay PlayoutDelay() const { return playout_delay_; }
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void SetPlayoutDelay(VideoPlayoutDelay playout_delay) {
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playout_delay_ = playout_delay;
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}
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/**
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* Get the encoded image
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*/
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const webrtc::EncodedImage& EncodedImage() const {
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return static_cast<const webrtc::EncodedImage&>(*this);
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}
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using EncodedImage::ColorSpace;
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using EncodedImage::data;
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using EncodedImage::GetEncodedData;
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using EncodedImage::NtpTimeMs;
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using EncodedImage::PacketInfos;
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using EncodedImage::Retain;
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using EncodedImage::set_size;
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using EncodedImage::SetColorSpace;
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using EncodedImage::SetEncodedData;
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using EncodedImage::SetPacketInfos;
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using EncodedImage::SetSpatialIndex;
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using EncodedImage::SetSpatialLayerFrameSize;
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using EncodedImage::SetTimestamp;
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using EncodedImage::size;
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using EncodedImage::SpatialIndex;
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using EncodedImage::SpatialLayerFrameSize;
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using EncodedImage::Timestamp;
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/**
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* Get render time in milliseconds
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*/
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int64_t RenderTimeMs() const { return _renderTimeMs; }
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/**
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* Get frame type
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*/
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webrtc::VideoFrameType FrameType() const { return _frameType; }
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/**
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* Set frame type
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*/
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void SetFrameType(webrtc::VideoFrameType frame_type) {
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_frameType = frame_type;
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}
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/**
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* Get frame rotation
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*/
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VideoRotation rotation() const { return rotation_; }
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/**
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* Get video content type
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*/
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VideoContentType contentType() const { return content_type_; }
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/**
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* Get video timing
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*/
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EncodedImage::Timing video_timing() const { return timing_; }
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EncodedImage::Timing* video_timing_mutable() { return &timing_; }
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/**
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* True if this frame is complete, false otherwise
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*/
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bool Complete() const { return _completeFrame; }
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/**
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* True if there's a frame missing before this frame
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*/
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bool MissingFrame() const { return _missingFrame; }
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/**
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* Payload type of the encoded payload
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*/
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uint8_t PayloadType() const { return _payloadType; }
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/**
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* Get codec specific info.
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* The returned pointer is only valid as long as the VCMEncodedFrame
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* is valid. Also, VCMEncodedFrame owns the pointer and will delete
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* the object.
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*/
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const CodecSpecificInfo* CodecSpecific() const { return &_codecSpecificInfo; }
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void SetCodecSpecific(const CodecSpecificInfo* codec_specific) {
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_codecSpecificInfo = *codec_specific;
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}
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protected:
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void Reset();
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void CopyCodecSpecific(const RTPVideoHeader* header);
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int64_t _renderTimeMs;
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uint8_t _payloadType;
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bool _missingFrame;
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CodecSpecificInfo _codecSpecificInfo;
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webrtc::VideoCodecType _codec;
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};
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} // namespace webrtc
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#endif // MODULES_VIDEO_CODING_ENCODED_FRAME_H_
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