blob: 3d53090a27f5687b836f9e9686b7b013949165e7 (
plain)
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
76
77
|
/*
* Copyright (c) 2016 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 WEBRTC_MEDIA_ENGINE_VIDEOENCODERSOFTWAREFALLBACKWRAPPER_H_
#define WEBRTC_MEDIA_ENGINE_VIDEOENCODERSOFTWAREFALLBACKWRAPPER_H_
#include <memory>
#include <string>
#include <vector>
#include "webrtc/media/base/codec.h"
#include "webrtc/video_encoder.h"
namespace webrtc {
// Class used to wrap external VideoEncoders to provide a fallback option on
// software encoding when a hardware encoder fails to encode a stream due to
// hardware restrictions, such as max resolution.
class VideoEncoderSoftwareFallbackWrapper : public VideoEncoder {
public:
VideoEncoderSoftwareFallbackWrapper(const cricket::VideoCodec& codec,
webrtc::VideoEncoder* encoder);
int32_t InitEncode(const VideoCodec* codec_settings,
int32_t number_of_cores,
size_t max_payload_size) override;
int32_t RegisterEncodeCompleteCallback(
EncodedImageCallback* callback) override;
int32_t Release() override;
int32_t Encode(const VideoFrame& frame,
const CodecSpecificInfo* codec_specific_info,
const std::vector<FrameType>* frame_types) override;
int32_t SetChannelParameters(uint32_t packet_loss, int64_t rtt) override;
int32_t SetRateAllocation(const BitrateAllocation& bitrate_allocation,
uint32_t framerate) override;
bool SupportsNativeHandle() const override;
ScalingSettings GetScalingSettings() const override;
private:
bool InitFallbackEncoder();
// Settings used in the last InitEncode call and used if a dynamic fallback to
// software is required.
VideoCodec codec_settings_;
int32_t number_of_cores_;
size_t max_payload_size_;
// The last bitrate/framerate set, and a flag for noting they are set.
bool rates_set_;
BitrateAllocation bitrate_allocation_;
uint32_t framerate_;
// The last channel parameters set, and a flag for noting they are set.
bool channel_parameters_set_;
uint32_t packet_loss_;
int64_t rtt_;
const cricket::VideoCodec codec_;
webrtc::VideoEncoder* const encoder_;
std::unique_ptr<webrtc::VideoEncoder> fallback_encoder_;
std::string fallback_implementation_name_;
EncodedImageCallback* callback_;
};
} // namespace webrtc
#endif // WEBRTC_MEDIA_ENGINE_VIDEOENCODERSOFTWAREFALLBACKWRAPPER_H_
|
