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使用临时变量和std::move减少智能指针的拷贝构造

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This commit is contained in:
xiongziliang
2020-10-10 18:23:25 +08:00
parent 83a24a5863
commit dfaa8b540c
12 changed files with 31 additions and 30 deletions
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8
src/Common/MediaSource.h
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@@ -328,13 +328,13 @@ public:
virtual ~PacketCache() = default;
void inputPacket(bool is_video, const std::shared_ptr<packet> &pkt, bool key_pos) {
void inputPacket(bool is_video, std::shared_ptr<packet> pkt, bool key_pos) {
if (_policy.isFlushAble(is_video, key_pos, _policy.getStamp(pkt), _cache->size())) {
flushAll();
}
//追加数据到最后
_cache->emplace_back(pkt);
_cache->emplace_back(std::move(pkt));
if (key_pos) {
_key_pos = key_pos;
}
@@ -344,14 +344,14 @@ public:
_cache->clear();
}
virtual void onFlush(std::shared_ptr<packet_list> &, bool key_pos) = 0;
virtual void onFlush(std::shared_ptr<packet_list>, bool key_pos) = 0;
private:
void flushAll() {
if (_cache->empty()) {
return;
}
onFlush(_cache, _key_pos);
onFlush(std::move(_cache), _key_pos);
_cache = std::make_shared<packet_list>();
_key_pos = false;
}