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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
#ifndef VideoStreamFactory_h
#define VideoStreamFactory_h
#include "CodecConfig.h"
#include "mozilla/Atomics.h"
#include "mozilla/UniquePtr.h"
#include "webrtc/media/base/videoadapter.h"
#include "call/video_config.h"
namespace mozilla {
// Factory class for VideoStreams... vie_encoder.cc will call this to
// reconfigure.
class VideoStreamFactory
: public webrtc::VideoEncoderConfig::VideoStreamFactoryInterface {
public:
struct ResolutionAndBitrateLimits {
int resolution_in_mb;
int min_bitrate_bps;
int start_bitrate_bps;
int max_bitrate_bps;
};
VideoStreamFactory(VideoCodecConfig aConfig,
webrtc::VideoCodecMode aCodecMode, int aMinBitrate,
int aStartBitrate, int aPrefMaxBitrate,
int aNegotiatedMaxBitrate, unsigned int aSendingFramerate)
: mCodecMode(aCodecMode),
mSendingFramerate(aSendingFramerate),
mCodecConfig(std::forward<VideoCodecConfig>(aConfig)),
mMinBitrate(aMinBitrate),
mStartBitrate(aStartBitrate),
mPrefMaxBitrate(aPrefMaxBitrate),
mNegotiatedMaxBitrate(aNegotiatedMaxBitrate),
mSimulcastAdapter(MakeUnique<cricket::VideoAdapter>()) {}
void SetCodecMode(webrtc::VideoCodecMode aCodecMode);
void SetSendingFramerate(unsigned int aSendingFramerate);
// This gets called off-main thread and may hold internal webrtc.org
// locks. May *NOT* lock the conduit's mutex, to avoid deadlocks.
std::vector<webrtc::VideoStream> CreateEncoderStreams(
int width, int height, const webrtc::VideoEncoderConfig& config) override;
private:
// Used to limit number of streams for screensharing.
Atomic<webrtc::VideoCodecMode> mCodecMode;
// The framerate we're currently sending at.
Atomic<unsigned int> mSendingFramerate;
// The current send codec config, containing simulcast layer configs.
const VideoCodecConfig mCodecConfig;
// Bitrate limits in bps.
const int mMinBitrate = 0;
const int mStartBitrate = 0;
const int mPrefMaxBitrate = 0;
const int mNegotiatedMaxBitrate = 0;
// Adapter for simulcast layers. We use this to handle scaleResolutionDownBy
// for layers. It's separate from the conduit's mVideoAdapter to not affect
// scaling settings for incoming frames.
UniquePtr<cricket::VideoAdapter> mSimulcastAdapter;
};
} // namespace mozilla
#endif
|
