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1 /* | |
2 * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license | |
5 * that can be found in the LICENSE file in the root of the source | |
6 * tree. An additional intellectual property rights grant can be found | |
7 * in the file PATENTS. All contributing project authors may | |
8 * be found in the AUTHORS file in the root of the source tree. | |
9 */ | |
10 | |
11 #ifndef WEBRTC_CALL_RTP_RTCP_DEMUXER_HELPER_H_ | |
12 #define WEBRTC_CALL_RTP_RTCP_DEMUXER_HELPER_H_ | |
13 | |
14 #include <algorithm> | |
15 #include <map> | |
16 #include <utility> | |
17 | |
18 #include "webrtc/base/array_view.h" | |
19 #include "webrtc/base/basictypes.h" | |
20 | |
21 namespace webrtc { | |
22 | |
23 template <typename Container, | |
24 typename Key = typename Container::key_type, | |
25 typename Value = typename Container::value_type> | |
26 bool MultimapAssociationExists(const Container& multimap, Key key, Value val) { | |
27 auto it_range = multimap.equal_range(key); | |
28 using Reference = typename Container::const_reference; | |
29 return std::any_of(it_range.first, it_range.second, | |
30 [val](Reference elem) { return elem.second == val; }); | |
31 } | |
32 | |
33 template <typename Container, typename Value = typename Container::value_type> | |
34 size_t RemoveFromMultimapByValue(Container* multimap, const Value value) { | |
danilchap
2017/06/16 16:46:19
const Value& value
or
Value value
eladalon
2017/06/19 11:28:47
(const Value&) was intended; thanks for catching.
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35 size_t count = 0; | |
36 for (auto it = multimap->begin(); it != multimap->end();) { | |
37 if (it->second == value) { | |
38 it = multimap->erase(it); | |
39 ++count; | |
40 } else { | |
41 ++it; | |
42 } | |
43 } | |
44 return count; | |
45 } | |
46 | |
47 template <typename Container, typename Key = typename Container::key_type> | |
danilchap
2017/06/16 16:46:19
why do you need default value for Key?
since both
eladalon
2017/06/19 11:28:47
I was thinking of this as self-documenting code, b
| |
48 bool ContainerHasKey(const Container& c, const Key& k) { | |
49 return std::find(c.cbegin(), c.cend(), k) != c.cend(); | |
50 } | |
51 | |
52 template <typename Container, | |
53 typename Key = typename Container::key_type, | |
54 typename Value = typename Container::value_type> | |
55 bool AssociativeContainerHasValue(const Container& c, const Value& v) { | |
56 auto predicate = [v](const std::pair<Key, Value>& it) { | |
57 return it.second == v; | |
58 }; | |
59 return std::any_of(c.cbegin(), c.cend(), predicate); | |
60 } | |
61 | |
62 bool ParseSenderSsrc(rtc::ArrayView<const uint8_t> packet, | |
danilchap
2017/06/16 16:46:19
Ensure function name mention it extract ssrc from
eladalon
2017/06/19 11:28:47
Done.
| |
63 uint32_t* ssrc_sender); | |
64 | |
65 } // namespace webrtc | |
66 | |
67 #endif // WEBRTC_CALL_RTP_RTCP_DEMUXER_HELPER_H_ | |
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