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
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/*
* Copyright (c) 2012 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.
*
* WEBRTC VP8 wrapper interface
*/
#ifndef MODULES_VIDEO_CODING_CODECS_VP8_VP8_IMPL_H_
#define MODULES_VIDEO_CODING_CODECS_VP8_VP8_IMPL_H_
#include <memory>
#include <vector>
// NOTE: This include order must remain to avoid compile errors, even though
// it breaks the style guide.
#include "vpx/vp8cx.h"
#include "vpx/vp8dx.h"
#include "vpx/vpx_decoder.h"
#include "vpx/vpx_encoder.h"
#include "api/video/video_frame.h"
#include "common_video/include/i420_buffer_pool.h"
#include "common_video/include/video_frame.h"
#include "modules/video_coding/codecs/vp8/include/vp8.h"
#include "modules/video_coding/codecs/vp8/temporal_layers.h"
#include "modules/video_coding/include/video_codec_interface.h"
#include "modules/video_coding/utility/quality_scaler.h"
namespace webrtc {
class TemporalLayers;
class VP8EncoderImpl : public VP8Encoder {
public:
VP8EncoderImpl();
virtual ~VP8EncoderImpl();
int Release() override;
int InitEncode(const VideoCodec* codec_settings,
int number_of_cores,
size_t max_payload_size) override;
int Encode(const VideoFrame& input_image,
const CodecSpecificInfo* codec_specific_info,
const std::vector<FrameType>* frame_types) override;
int RegisterEncodeCompleteCallback(EncodedImageCallback* callback) override;
int SetChannelParameters(uint32_t packet_loss, int64_t rtt) override;
int SetRateAllocation(const BitrateAllocation& bitrate,
uint32_t new_framerate) override;
ScalingSettings GetScalingSettings() const override;
const char* ImplementationName() const override;
static vpx_enc_frame_flags_t EncodeFlags(
const TemporalLayers::FrameConfig& references);
private:
void SetupTemporalLayers(int num_streams,
int num_temporal_layers,
const VideoCodec& codec);
// Set the cpu_speed setting for encoder based on resolution and/or platform.
int SetCpuSpeed(int width, int height);
// Determine number of encoder threads to use.
int NumberOfThreads(int width, int height, int number_of_cores);
// Call encoder initialize function and set control settings.
int InitAndSetControlSettings();
void PopulateCodecSpecific(CodecSpecificInfo* codec_specific,
const TemporalLayers::FrameConfig& tl_config,
const vpx_codec_cx_pkt& pkt,
int stream_idx,
uint32_t timestamp);
int GetEncodedPartitions(const TemporalLayers::FrameConfig tl_configs[],
const VideoFrame& input_image);
// Set the stream state for stream |stream_idx|.
void SetStreamState(bool send_stream, int stream_idx);
uint32_t MaxIntraTarget(uint32_t optimal_buffer_size);
const bool use_gf_boost_;
EncodedImageCallback* encoded_complete_callback_;
VideoCodec codec_;
bool inited_;
int64_t timestamp_;
int qp_max_;
int cpu_speed_default_;
int number_of_cores_;
uint32_t rc_max_intra_target_;
std::vector<std::unique_ptr<TemporalLayers>> temporal_layers_;
std::vector<std::unique_ptr<TemporalLayersChecker>> temporal_layers_checkers_;
std::vector<uint16_t> picture_id_;
std::vector<uint8_t> tl0_pic_idx_;
std::vector<bool> key_frame_request_;
std::vector<bool> send_stream_;
std::vector<int> cpu_speed_;
std::vector<vpx_image_t> raw_images_;
std::vector<EncodedImage> encoded_images_;
std::vector<vpx_codec_ctx_t> encoders_;
std::vector<vpx_codec_enc_cfg_t> configurations_;
std::vector<vpx_rational_t> downsampling_factors_;
};
class VP8DecoderImpl : public VP8Decoder {
public:
VP8DecoderImpl();
virtual ~VP8DecoderImpl();
int InitDecode(const VideoCodec* inst, int number_of_cores) override;
int Decode(const EncodedImage& input_image,
bool missing_frames,
const RTPFragmentationHeader* fragmentation,
const CodecSpecificInfo* codec_specific_info,
int64_t /*render_time_ms*/) override;
int RegisterDecodeCompleteCallback(DecodedImageCallback* callback) override;
int Release() override;
const char* ImplementationName() const override;
struct DeblockParams {
int max_level = 6; // Deblocking strength: [0, 16].
int degrade_qp = 1; // If QP value is below, start lowering |max_level|.
int min_qp = 0; // If QP value is below, turn off deblocking.
};
private:
class QpSmoother;
int ReturnFrame(const vpx_image_t* img,
uint32_t timeStamp,
int64_t ntp_time_ms,
int qp);
const bool use_postproc_arm_;
I420BufferPool buffer_pool_;
DecodedImageCallback* decode_complete_callback_;
bool inited_;
vpx_codec_ctx_t* decoder_;
int propagation_cnt_;
int last_frame_width_;
int last_frame_height_;
bool key_frame_required_;
DeblockParams deblock_;
const std::unique_ptr<QpSmoother> qp_smoother_;
};
} // namespace webrtc
#endif // MODULES_VIDEO_CODING_CODECS_VP8_VP8_IMPL_H_
|
