as you said
I checked the testOnDemandRTSPServer demo application,
I also read the FAQ about liveInput-unicast several times.
I also implemented and checked a simple sample program.
1. Like the testOnDemandRTSPServer demo application, I implemented a file streaming demo program using the H264VideoFileServerMediaSubsession object and confirmed that it operates normally.
2. For real-time streaming, I followed the FAQ about liveInput-unicast.
I created a MyH264LiveServerMediaSubsession object that inherits OnDemandServerMediaSubsession and redefined two pure virtual functions.
The doGetNextFrame function should be called when the camera is connected properly, but it is not working.
Since doGetNextFrame is not called, camera frame data cannot be processed or transmitted.
No matter how much I think about it, I can't figure out what the problem is.
I sincerely ask for your help.
I am attaching a simplified sample code.
/************************ main ***************************************************/
#include "MyH264LiveServerMediaSubsession.h"
main(){
TaskScheduler* scheduler = BasicTaskScheduler::createNew();
UsageEnvironment* env = BasicUsageEnvironment::createNew(*scheduler);
RTSPServer* rtspServer = RTSPServer::createNew(*env, 8554);
if (rtspServer == NULL) {
*env << "Failed to create RTSP server: " << env->getResultMsg() << "\n";
return -1;
}
ServerMediaSession* sms = ServerMediaSession::createNew(*env, "ggg", "Live Stream", "Live stream from webcam");
sms->addSubsession(MyH264LiveServerMediaSubsession::createNew(*env));
//sms->addSubsession(H264VideoFileServerMediaSubsession::createNew(*env, "D:\\1.264", false));
rtspServer->addServerMediaSession(sms);
*env << "RTSP stream ready at rtsp://localhost:8554/ggg\n";
env->taskScheduler().doEventLoop();
return 0;
}
/*********************** MyH264LiveServerMediaSubsession.h ****************************************************/
#include "MyH264LiveSource.h"
class MyH264LiveServerMediaSubsession : public OnDemandServerMediaSubsession {
public:
static MyH264LiveServerMediaSubsession* createNew(UsageEnvironment& env) {
return new MyH264LiveServerMediaSubsession(env);
}
protected:
MyH264LiveServerMediaSubsession(UsageEnvironment& env)
: OnDemandServerMediaSubsession(env, true) {
}
virtual ~MyH264LiveServerMediaSubsession() {
}
virtual FramedSource* createNewStreamSource(unsigned /*clientSessionId*/, unsigned& estBitrate) {
return MyH264LiveSource::createNew(envir());
}
virtual RTPSink* createNewRTPSink(Groupsock* rtpGroupsock, unsigned char rtpPayloadTypeIfDynamic, FramedSource* /*inputSource*/) {
return H264VideoRTPSink::createNew(envir(), rtpGroupsock, rtpPayloadTypeIfDynamic);
//return SimpleRTPSink::createNew(envir(), rtpGroupsock, rtpPayloadTypeIfDynamic, 90000, "video", "H264", 1, true, false);
}
};
/*********************** MyH264LiveSource.h ****************************************************/
class MyH264LiveSource : public FramedSource {
public:
static MyH264LiveSource* createNew(UsageEnvironment& env) {
return new MyH264LiveSource(env);
}
protected:
MyH264LiveSource(UsageEnvironment& env)
: FramedSource(env) {
}
virtual ~MyH264LiveSource() {}
virtual void doGetNextFrame() {
envir() << "Process Data\n";
FramedSource::afterGetting(this);
}
};
|
|
강현구 |
책임연구원 / S/W개발팀 |
|
Hyungu Kang |
Senior Research Engineer / S/W
R&D Team |
|
|
T 070-4228-1071 F 031-702-5314
M 010-8584-8093 E hyungu.k...@autol.co.kr 13453 경기도 성남시 수정구 금토로 80번길 11, 판교이노베이션랩
지식산업센터 305호 305, 11 Geumto-ro 80beon-gil,
Sujeong-gu, Seongnam-si, Gyeonggi-do, 13453, Republic of Korea |
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----- Original Message -----------------------------------
From : "Ross Finlayson" <finlay...@live555.com>
To : "LIVE555 Streaming Media - development & use" <live-de...@us.live555.com>
Cc :
Sent : "2024-06-26T10:38:40"
Subject : "RE: Re: [Live-devel] Technical inquiry"
> On Jun 25, 2024, at 6:31 PM, 강현구 <hyungu.k...@autol.co.kr> wrote:
>
> Thank you for your quick reply.
>
> I want to stream via IP unicast.
> For this purpose, I am inheriting and using the OnDemandServerMediaSubsession object.
>
> You said I was using mixed code.
> Please explain what part is wrong or what part of the code is for multicast streaming.
The part of your code where you
- chose a random IP multicast address, and
- created a “Groupsock” object that uses that address
This code is useful only when you are streaming via multicast.
> P.S. I checked the testOnDemandRTSPServer demo program, but I didn't get the information I wanted because it was an example of streaming file data.
Nonetheless, you should use that code as a model for your application. See http://live555.com/liveMedia/faq.html#liveInput-unicast
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
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