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支持ehome推流：#514

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This commit is contained in:
xiongziliang 2020-10-24 23:32:23 +08:00
parent 38a002646d
commit 18459db8f1
2 changed files with 47 additions and 11 deletions
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46
src/Rtp/RtpSplitter.cpp
View File

@ -9,18 +9,57 @@
*/
#if defined(ENABLE_RTPPROXY)
#include <netinet/in.h>
#include <string.h>
#include "RtpSplitter.h"
namespace mediakit{
RtpSplitter::RtpSplitter() {}
static const char kEHOME_MAGIC[] = "\x01\x00\x01\x00";
static const int kEHOME_OFFSET = 256;
RtpSplitter::RtpSplitter() {}
RtpSplitter::~RtpSplitter() {}
int64_t RtpSplitter::onRecvHeader(const char *data,uint64_t len){
//忽略偏移量
data += _offset;
len -= _offset;
if (_offset == kEHOME_OFFSET + 4 && len > 12 && data[12] == '\r') {
//这是ehome,移除第12个字节
memmove((char *) data + 1, data, 12);
data += 1;
len -= 1;
}
onRtpPacket(data, len);
return 0;
}
static bool isEhome(const char *data, int len){
if (len < 4) {
return false;
}
return memcmp(data, kEHOME_MAGIC, sizeof(kEHOME_MAGIC) - 1) == 0;
}
const char *RtpSplitter::onSearchPacketTail(const char *data, int len) {
if (len < 4) {
//数据不够
return nullptr;
}
if (isEhome(data, len)) {
//是ehome协议
if (len < kEHOME_OFFSET + 4) {
//数据不够
return nullptr;
}
//忽略ehome私有头后是rtsp样式的rtp，多4个字节，
_offset = kEHOME_OFFSET + 4;
//忽略ehome私有头
return onSearchPacketTail_l(data + kEHOME_OFFSET + 2, len - kEHOME_OFFSET - 2);
}
if (data[0] == '$') {
//可能是4个字节的rtp头
_offset = 4;
@ -42,10 +81,5 @@ const char *RtpSplitter::onSearchPacketTail_l(const char *data, int len) {
return data + 2 + length;
}
int64_t RtpSplitter::onRecvHeader(const char *data, uint64_t len) {
onRtpPacket(data + _offset, len - _offset);
return 0;
}
}//namespace mediakit
#endif//defined(ENABLE_RTPPROXY)

12
src/Rtp/RtpSplitter.h
View File

@ -19,18 +19,20 @@ namespace mediakit{
class RtpSplitter : public HttpRequestSplitter{
public:
RtpSplitter();
virtual ~RtpSplitter();
~RtpSplitter() override;
protected:
/**
* 收到rtp包回调
* @param data RTP包数据指针
* @param len RTP包数据长度
*/
virtual void onRtpPacket(const char *data,uint64_t len) = 0;
virtual void onRtpPacket(const char *data, uint64_t len) = 0;
protected:
const char *onSearchPacketTail(const char *data,int len) override ;
const char *onSearchPacketTail_l(const char *data,int len);
int64_t onRecvHeader(const char *data,uint64_t len) override;
int64_t onRecvHeader(const char *data, uint64_t len) override;
const char *onSearchPacketTail(const char *data, int len) override;
const char *onSearchPacketTail_l(const char *data, int len);
private:
int _offset = 0;