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
|
/*
* Copyright (c) 2017 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 API_VIDEO_CODECS_SDP_VIDEO_FORMAT_H_
#define API_VIDEO_CODECS_SDP_VIDEO_FORMAT_H_
#include <map>
#include <string>
#include "absl/container/inlined_vector.h"
#include "absl/types/optional.h"
#include "api/array_view.h"
#include "api/video_codecs/scalability_mode.h"
#include "rtc_base/system/rtc_export.h"
namespace webrtc {
// SDP specification for a single video codec.
// NOTE: This class is still under development and may change without notice.
struct RTC_EXPORT SdpVideoFormat {
using Parameters = std::map<std::string, std::string>;
explicit SdpVideoFormat(const std::string& name);
SdpVideoFormat(const std::string& name, const Parameters& parameters);
SdpVideoFormat(
const std::string& name,
const Parameters& parameters,
const absl::InlinedVector<ScalabilityMode, kScalabilityModeCount>&
scalability_modes);
SdpVideoFormat(const SdpVideoFormat&);
SdpVideoFormat(SdpVideoFormat&&);
SdpVideoFormat& operator=(const SdpVideoFormat&);
SdpVideoFormat& operator=(SdpVideoFormat&&);
~SdpVideoFormat();
// Returns true if the SdpVideoFormats have the same names as well as codec
// specific parameters. Please note that two SdpVideoFormats can represent the
// same codec even though not all parameters are the same.
bool IsSameCodec(const SdpVideoFormat& other) const;
bool IsCodecInList(
rtc::ArrayView<const webrtc::SdpVideoFormat> formats) const;
std::string ToString() const;
friend RTC_EXPORT bool operator==(const SdpVideoFormat& a,
const SdpVideoFormat& b);
friend RTC_EXPORT bool operator!=(const SdpVideoFormat& a,
const SdpVideoFormat& b) {
return !(a == b);
}
std::string name;
Parameters parameters;
absl::InlinedVector<ScalabilityMode, kScalabilityModeCount> scalability_modes;
};
// For not so good reasons sometimes additional parameters are added to an
// SdpVideoFormat, which makes instances that should compare equal to not match
// anymore. Until we stop misusing SdpVideoFormats provide this convenience
// function to perform fuzzy matching.
absl::optional<SdpVideoFormat> FuzzyMatchSdpVideoFormat(
rtc::ArrayView<const SdpVideoFormat> supported_formats,
const SdpVideoFormat& format);
} // namespace webrtc
#endif // API_VIDEO_CODECS_SDP_VIDEO_FORMAT_H_
|
