mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-10-06 12:13:49 +08:00
131 lines
3.1 KiB
C++
131 lines
3.1 KiB
C++
#include "HSExt.hpp"
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namespace SRT {
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bool HSExtMessage::loadFromData(uint8_t *buf, size_t len) {
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if(buf == NULL || len != HSEXT_MSG_SIZE){
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return false;
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}
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_data = BufferRaw::create();
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_data->assign((char*)buf,len);
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extension_length = 3;
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HSExt::loadHeader();
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assert(extension_type == SRT_CMD_HSREQ || extension_type == SRT_CMD_HSRSP);
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uint8_t* ptr = (uint8_t*)_data->data()+4;
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srt_version = loadUint32(ptr);
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ptr += 4;
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srt_flag = loadUint32(ptr);
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ptr += 4;
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recv_tsbpd_delay = loadUint16(ptr);
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ptr += 2;
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send_tsbpd_delay = loadUint16(ptr);
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ptr += 2;
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return true;
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}
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std::string HSExtMessage::dump(){
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_StrPrinter printer;
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printer << "srt version : "<<std::hex<<srt_version<<" srt flag : "<<std::hex<<srt_flag<<\
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" recv_tsbpd_delay="<<recv_tsbpd_delay<<" send_tsbpd_delay = "<<send_tsbpd_delay;
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return std::move(printer);
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}
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bool HSExtMessage::storeToData() {
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_data = BufferRaw::create();
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_data->setCapacity(HSEXT_MSG_SIZE);
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_data->setSize(HSEXT_MSG_SIZE);
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extension_length = 3;
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HSExt::storeHeader();
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uint8_t* ptr = (uint8_t*)_data->data()+4;
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storeUint32(ptr,srt_version);
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ptr += 4;
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storeUint32(ptr,srt_flag);
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ptr += 4;
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storeUint16(ptr,recv_tsbpd_delay);
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ptr += 2;
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storeUint16(ptr,send_tsbpd_delay);
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ptr += 2;
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return true;
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}
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bool HSExtStreamID::loadFromData(uint8_t *buf, size_t len) {
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if(buf == NULL || len < 4){
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return false;
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}
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_data = BufferRaw::create();
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_data->assign((char*)buf,len);
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HSExt::loadHeader();
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size_t content_size = extension_length*4;
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if(len < content_size+4){
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return false;
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}
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streamid.clear();
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char* ptr = _data->data()+4;
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for(size_t i = 0; i<extension_length; ++i){
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streamid.push_back(*(ptr+3));
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streamid.push_back(*(ptr+2));
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streamid.push_back(*(ptr+1));
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streamid.push_back(*(ptr));
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ptr+=4;
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}
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char zero = 0x00;
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if(streamid.back() == zero){
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streamid.erase(streamid.find_first_of(zero),streamid.size());
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}
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return true;
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}
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bool HSExtStreamID::storeToData() {
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size_t content_size = ((streamid.length()+4)+3)/4*4;
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_data = BufferRaw::create();
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_data->setCapacity(content_size);
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_data->setSize(content_size);
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extension_length = (content_size-4)/4;
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extension_type = SRT_CMD_SID;
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HSExt::storeHeader();
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auto ptr = _data->data()+4;
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memset(ptr,0,extension_length*4);
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const char* src = streamid.c_str();
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for(size_t i = 0; i< streamid.length()/4;++i){
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*ptr = *(src+3+i*4);
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ptr++;
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*ptr = *(src+2+i*4);
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ptr++;
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*ptr = *(src+1+i*4);
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ptr++;
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*ptr = *(src+0+i*4);
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ptr++;
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}
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ptr += 3;
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size_t offset = streamid.length()/4*4;
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for(size_t i = 0; i<streamid.length()%4;++i){
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*ptr = *(src+offset+i);
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ptr -= 1;
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}
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return true;
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}
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std::string HSExtStreamID::dump(){
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_StrPrinter printer;
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printer << " streamid : "<< streamid;
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return std::move(printer);
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}
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} // namespace SRT
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