[Live-devel] StreamParser/ensureValidBytes1: fail to parse h264 file source

[Hyung Jin Jung]

When I run live555MediaServer.exe, program send "throw" in the middle of making SDP lines.

As you can see below backtrace it happened in void StreamParser::ensureValidBytes1

The problem is StreamParser::afterGettingBytes never called back in synchronous mode. 
Because of ByteStreamFileSource::doReadFromFile just schedule it rather than call FramedSource::afterGetting directly

I don't know how live555 scheduler worked, exactly but this logic seem to wired..
Anyone show me the way how to handle this?

BR,
Davy


Breakpoint 2, StreamParser::ensureValidBytes1 (this=this at entry=0x8b6fa0, numBytesNeeded=numBytesNeeded at entry=4) at StreamParser.cpp:161
161       throw NO_MORE_BUFFERED_INPUT;
(gdb) bt
#0  StreamParser::ensureValidBytes1 (this=this at entry=0x8b6fa0, numBytesNeeded=numBytesNeeded at entry=4) at StreamParser.cpp:161
#1  0x000000000040adcd in ensureValidBytes (numBytesNeeded=4, this=0x8b6fa0) at StreamParser.hh:118

#2  test4Bytes (this=0x8b6fa0) at StreamParser.hh:54

#3  H264or5VideoStreamParser::parse (this=0x8b6fa0) at H264or5VideoStreamFramer.cpp:951

#4  0x0000000000405b5d in MPEGVideoStreamFramer::continueReadProcessing (this=0x8b6da0) at MPEGVideoStreamFramer.cpp:159

#5  0x0000000000405bf8 in MPEGVideoStreamFramer::doGetNextFrame (this=0x8b6da0) at MPEGVideoStreamFramer.cpp:142

#6  0x0000000000402832 in FramedSource::getNextFrame (this=0x8b6da0,
    to=to at entry=0x204d421 "\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\27
2\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\25
5\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\36
0\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\
r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r"...,
    maxSize=100000,
    afterGettingFunc=afterGettingFunc at entry=0x419a06 <H264or5Fragmenter::afterGettingFrame(void*, unsigned int, unsigned int, timeval, unsigned int)>,
 afterGettingClientData=afterGettingClientData at entry=0x204d2b0, onCloseFunc=0x402896 <FramedSource::handleClosure(void*)>,
    onCloseClientData=onCloseClientData at entry=0x204d2b0) at FramedSource.cpp:78

#7  0x000000000041956d in H264or5Fragmenter::doGetNextFrame (this=0x204d2b0) at H264or5VideoRTPSink.cpp:181

#8  0x0000000000402832 in FramedSource::getNextFrame (this=0x204d2b0,
    to=0x203493c "\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360
\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r
\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\2
72\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\2
55\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272\r\360\255\272"..., maxSize=100452,
    afterGettingFunc=0x423b76 <MultiFramedRTPSink::afterGettingFrame(void*, unsigned int, unsigned int, timeval, unsigned int)>,
    afterGettingClientData=0x2034560, onCloseFunc=0x423b8e <MultiFramedRTPSink::ourHandleClosure(void*)>, onCloseClientData=0x2034560)
    at FramedSource.cpp:78

#9  0x0000000000423a7d in MultiFramedRTPSink::packFrame (this=0x2034560) at MultiFramedRTPSink.cpp:224

#10 0x0000000000423b42 in MultiFramedRTPSink::buildAndSendPacket (this=this at entry=0x2034560, isFirstPacket=isFirstPacket at entry=1 '\001')
    at MultiFramedRTPSink.cpp:199

#11 0x0000000000423b58 in MultiFramedRTPSink::continuePlaying (this=this at entry=0x2034560) at MultiFramedRTPSink.cpp:159

#12 0x0000000000419ad7 in H264or5VideoRTPSink::continuePlaying (this=0x2034560) at H264or5VideoRTPSink.cpp:127

#13 0x00000000004167fb in MediaSink::startPlaying (this=0x2034560, source=..., afterFunc=afterFunc at entry=0x43b1d9 <afterPlayingDummy(void*)>,
    afterClientData=afterClientData at entry=0x1fea290) at MediaSink.cpp:78

#14 0x000000000043b2c7 in H264VideoFileServerMediaSubsession::getAuxSDPLine (this=0x1fea290, rtpSink=<optimized out>, inputSource=<optimized out>)
    at H264VideoFileServerMediaSubsession.cpp:92

#15 0x000000000043aaa6 in OnDemandServerMediaSubsession::setSDPLinesFromRTPSink (this=this at entry=0x1fea290, rtpSink=rtpSink at entry=0x2034560,
    inputSource=inputSource at entry=0x8b6da0, estBitrate=500) at OnDemandServerMediaSubsession.cpp:433

#16 0x000000000043acbd in OnDemandServerMediaSubsession::sdpLines (this=0x1fea290) at OnDemandServerMediaSubsession.cpp:76
#17 0x0000000000439244 in ServerMediaSession::generateSDPDescription (this=this at entry=0x1fea010) at ServerMediaSession.cpp:240
#18 0x000000000042a02f in RTSPServer::RTSPClientConnection::handleCmd_DESCRIBE (this=0x1fe0080, urlPreSuffix=<optimized out>,
    urlSuffix=0x22f0e0 "slamtv60.264",
    fullRequestStr=0x1fe00a4 "DESCRIBE rtsp://192.168.18.1:8554/slamtv60.264 RTSP/1.0\r\nCSeq: 3\r\nUser-Agent: LibVLC/2.2.4 (LIVE555 Streaming Media
v2016.02.22)\r\nAccept: application/sdp\r\n\r\n") at RTSPServer.cpp:454
#19 0x0000000000428c0a in RTSPServer::RTSPClientConnection::handleRequestBytes (this=0x1fe0080, newBytesRead=<optimized out>) at RTSPServer.cpp:923
---Type <return> to continue, or q <return> to quit---
#20 0x0000000000427074 in GenericMediaServer::ClientConnection::incomingRequestHandler (this=0x1fe0080) at GenericMediaServer.cpp:246
#21 0x0000000000427085 in GenericMediaServer::ClientConnection::incomingRequestHandler (instance=0x8b4a80) at GenericMediaServer.cpp:239
#22 0x000000000045b2c8 in BasicTaskScheduler::SingleStep(unsigned int) ()
#23 0x000000000000007d in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb)