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Perf: Refine object cache, avoid dynamic cast

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This commit is contained in:
winlin 2021-02-27 11:23:50 +08:00
parent 427e3e0d84
commit 471cf611c6
6 changed files with 76 additions and 49 deletions
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23
trunk/src/kernel/srs_kernel_rtc_rtp.hpp
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@ -258,6 +258,7 @@ public:
srs_error_t set_twcc_sequence_number(uint8_t id, uint16_t sn);
};
// The common payload interface for RTP packet.
class ISrsRtpPayloader : public ISrsCodec
{
public:
@ -267,6 +268,17 @@ public:
virtual ISrsRtpPayloader* copy() = 0;
};
// The payload type, for performance to avoid dynamic cast.
enum SrsRtpPacketPayloadType
{
SrsRtpPacketPayloadTypeRaw,
SrsRtpPacketPayloadTypeFUA2,
SrsRtpPacketPayloadTypeFUA,
SrsRtpPacketPayloadTypeNALU,
SrsRtpPacketPayloadTypeSTAP,
SrsRtpPacketPayloadTypeUnknown,
};
class ISrsRtpPacketDecodeHandler
{
public:
@ -274,7 +286,7 @@ public:
virtual ~ISrsRtpPacketDecodeHandler();
public:
// We don't know the actual payload, so we depends on external handler.
virtual void on_before_decode_payload(SrsRtpPacket2* pkt, SrsBuffer* buf, ISrsRtpPayloader** ppayload) = 0;
virtual void on_before_decode_payload(SrsRtpPacket2* pkt, SrsBuffer* buf, ISrsRtpPayloader** ppayload, SrsRtpPacketPayloadType* ppt) = 0;
};
// The RTP packet with cached shared message.
@ -283,7 +295,9 @@ class SrsRtpPacket2
// RTP packet fields.
public:
SrsRtpHeader header;
ISrsRtpPayloader* payload;
private:
ISrsRtpPayloader* payload_;
SrsRtpPacketPayloadType payload_type_;
private:
// The original shared message, all RTP packets can refer to its data.
SrsSharedPtrMessage* shared_msg;
@ -303,7 +317,7 @@ public:
SrsRtpPacket2();
virtual ~SrsRtpPacket2();
private:
void reuse();
void reuse_payload();
void reuse_shared_msg();
public:
// Reset the object to reuse it.
@ -314,6 +328,9 @@ public:
// Wrap the shared message, we copy it.
char* wrap(SrsSharedPtrMessage* msg);
public:
// Get and set the payload of packet.
void set_payload(ISrsRtpPayloader* p, SrsRtpPacketPayloadType pt) { payload_ = p; payload_type_ = pt; }
ISrsRtpPayloader* payload() { return payload_; }
// Set the padding of RTP packet.
void set_padding(int size);
// Increase the padding of RTP packet.