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/*
* 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 CALL_RTP_RTCP_DEMUXER_HELPER_H_
#define CALL_RTP_RTCP_DEMUXER_HELPER_H_
#include <stddef.h>
#include <stdint.h>
#include "absl/types/optional.h"
#include "api/array_view.h"
namespace webrtc {
// TODO(eladalon): Remove this in the next CL.
template <typename Container>
bool MultimapAssociationExists(const Container& multimap,
const typename Container::key_type& key,
const typename Container::mapped_type& val) {
auto it_range = multimap.equal_range(key);
using Reference = typename Container::const_reference;
return std::any_of(it_range.first, it_range.second,
[val](Reference elem) { return elem.second == val; });
}
template <typename Container, typename Value>
size_t RemoveFromMultimapByValue(Container* multimap, const Value& value) {
size_t count = 0;
for (auto it = multimap->begin(); it != multimap->end();) {
if (it->second == value) {
it = multimap->erase(it);
++count;
} else {
++it;
}
}
return count;
}
template <typename Map, typename Value>
size_t RemoveFromMapByValue(Map* map, const Value& value) {
size_t count = 0;
for (auto it = map->begin(); it != map->end();) {
if (it->second == value) {
it = map->erase(it);
++count;
} else {
++it;
}
}
return count;
}
template <typename Container, typename Key>
bool ContainerHasKey(const Container& c, const Key& k) {
return std::find(c.cbegin(), c.cend(), k) != c.cend();
}
// TODO(eladalon): Remove this in the next CL.
template <typename Container>
bool MultimapHasValue(const Container& c,
const typename Container::mapped_type& v) {
auto predicate = [v](const typename Container::value_type& it) {
return it.second == v;
};
return std::any_of(c.cbegin(), c.cend(), predicate);
}
template <typename Map>
bool MapHasValue(const Map& map, const typename Map::mapped_type& value) {
auto predicate = [value](const typename Map::value_type& it) {
return it.second == value;
};
return std::any_of(map.cbegin(), map.cend(), predicate);
}
template <typename Container>
bool MultimapHasKey(const Container& c,
const typename Container::key_type& key) {
auto it_range = c.equal_range(key);
return it_range.first != it_range.second;
}
absl::optional<uint32_t> ParseRtcpPacketSenderSsrc(
rtc::ArrayView<const uint8_t> packet);
} // namespace webrtc
#endif // CALL_RTP_RTCP_DEMUXER_HELPER_H_
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