Performance: 使用循环池优化http-flv分发性能

src/Rtmp/FlvMuxer.cpp

@@ -16,6 +16,10 @@
 
 namespace mediakit {
 
+FlvMuxer::FlvMuxer(){
+    _packet_pool.setSize(64);
+}
+
 void FlvMuxer::start(const EventPoller::Ptr &poller, const RtmpMediaSource::Ptr &media) {
     if (!media) {
         throw std::runtime_error("RtmpMediaSource 无效");
@@ -62,15 +66,19 @@ void FlvMuxer::start(const EventPoller::Ptr &poller, const RtmpMediaSource::Ptr
     });
 }
 
+BufferRaw::Ptr FlvMuxer::obtainBuffer() {
+    return _packet_pool.obtain();
+}
+
 BufferRaw::Ptr FlvMuxer::obtainBuffer(const void *data, size_t len) {
-    auto buffer = BufferRaw::create();
+    auto buffer = obtainBuffer();
     buffer->assign((const char *) data, len);
     return buffer;
 }
 
 void FlvMuxer::onWriteFlvHeader(const RtmpMediaSource::Ptr &src) {
     //发送flv文件头
-    auto buffer = BufferRaw::create();
+    auto buffer = obtainBuffer();
     buffer->setCapacity(sizeof(FLVHeader));
     buffer->setSize(sizeof(FLVHeader));
 

src/Rtmp/FlvMuxer.h

@@ -22,7 +22,7 @@ namespace mediakit {
 class FlvMuxer {
 public:
     using Ptr = std::shared_ptr<FlvMuxer>;
-    FlvMuxer() = default;
+    FlvMuxer();
     virtual ~FlvMuxer() = default;
 
     void stop();
@@ -39,8 +39,10 @@ private:
     void onWriteFlvTag(const RtmpPacket::Ptr &pkt, uint32_t time_stamp, bool flush);
     void onWriteFlvTag(uint8_t type, const Buffer::Ptr &buffer, uint32_t time_stamp, bool flush);
     BufferRaw::Ptr obtainBuffer(const void *data, size_t len);
+    BufferRaw::Ptr obtainBuffer();
 
 private:
+    ResourcePool<BufferRaw> _packet_pool;
     //时间戳修整器
     Stamp _stamp[2];
     RtmpMediaSource::RingType::RingReader::Ptr _ring_reader;