[Live-devel] LiveMedia in a Directshow Filter

[Eyal Shveky]

Hi,

Thank you for the reply.

I Don't quite understand how the doGetNextFrame() method is working.

If I'm using the while loop, after creating
MPEG4VideoLiveServerMediaSubsession the MPEG4LiveSource that is a member
of that object is not created yet, Until I'm running the VLC received
stream. Then I'm checking if it's already been assign only then calling
to deliverFrame();

 

ServerMediaSession* sms = ServerMediaSession::createNew(*env,
streamName, streamName, descriptionString);

MPEG4VideoLiveServerMediaSubsession* mP4LiveSms =
MPEG4VideoLiveServerMediaSubsession::createNew(*env, streamName,
reuseFirstSource);

sms->addSubsession(mP4LiveSms);     

rtspServer->addServerMediaSession(sms);

announceStreamLive(rtspServer, sms, streamName);      

 

while(true)

{

      fWatchVariable = 0;

      dummyTask(NULL); // 100ms

      env->taskScheduler().doEventLoop(&fWatchVariable);

      if (fWatchVariable = 1)

      {

            printf("\nIn While fWatchVariable=%d,",fWatchVariable);     

            if (!mP4LiveSms->mpeg4LiveSource != NULL)

 
mP4LiveSms->mpeg4LiveSource->deliverFrame(); 

      }

}

 

Questions:

1) Looking at the ouptput (attached file) learning that a lot of
"ms:###., size=###" prints that received in My DS filter. When receiving
the stream on VLC Player on demand with "rtsp://192.168.169.128" I'm
getting :

 

fWatchVariable=0,accept()ed connection from
192.168.169.12810RTSPClientSession[0

0E79B20]::handleRequestBytes() read 138 new bytes:OPTIONS
rtsp://192.168.169.128

:8554/mpeg4ESVideoTest RTSP/1.0

CSeq: 2

User-Agent: LibVLC/1.1.4 (LIVE555 Streaming Media v2010.08.22)

 

 

parseRTSPRequestString() returned cmdName "OPTIONS", urlPreSuffix "",
urlSuffix

"mpeg4ESVideoTest"

sending response: RTSP/1.0 200 OK

CSeq: 2

Date: Mon, Nov 29 2010 11:41:10 GMT

Public: OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE, GET_PARAMETER,
SET_PARA

METER

 

RTSPClientSession[00E79B20]::handleRequestBytes() read 164 new
bytes:DESCRIBE rt

sp://192.168.169.128:8554/mpeg4ESVideoTest RTSP/1.0

CSeq: 3

User-Agent: LibVLC/1.1.4 (LIVE555 Streaming Media v2010.08.22)

Accept: application/sdp

 

 

parseRTSPRequestString() returned cmdName "DESCRIBE", urlPreSuffix "",
urlSuffix

"mpeg4ESVideoTest"

parsing VisualObjectSequence

MPEG4VideoStreamParser::parse() EXCEPTION (This is normal behavior -
*not* an er

ror)

.Done!

RTSPClientSession[00E79B20]::handleRequestBytes() read 0 new bytes (of
9836); te

rminating connection!

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