Re: [Opalvoip-user] video sink stream is not created after source exists ?

[Vladimir F. <vla...@gm...>]

Hello all,

 ok it works now :-) there is no problem (I set initial bandwith for h323
too low).

Cheers,

  Vladimir

On Wed, Feb 2, 2011 at 10:32 AM, Vladimir Fekete <vla...@gm...>wrote:

> Hello all,
>
>  I came into strange situation and I would like to ask you for a opinion.
> Is there any reason why would not OPAL wants to create video sink stream
> after it crated video source stream ?
> My situation:
>
> partyA: my OPAL based application with classes for local end point, h323
> endpoint, local connection, local media stream, opal video stream
> partyB: H323+ automatic answering machine which reply with both audio and
> video.
>
> when I set up call  A -> B, I'm trying to react on requests for creation of
> streams for both audio and video source and sink (e.g. 4 streams).
> Concerning audio streams - everything is OK, they both work (source and
> sinktogether), however I cannot create both source and video streams (code
> flow will not enter CreateMediaStream twice although I see that there is a
> stream for H323 H.261 Sink,).
>
> Strange thing is, that when I create only video source, or only video sink,
> they works (separately). But not together. Don't you have any clues what
> could possibly cause this situation ?
>
> Thank you very much!
>
> Best regards,
>
>   Vladimir Fekete
>
> My output is :
>
> #=======================================================
> AUDIO SOURCE
>
> VIDEO SOURCE
>
> CIF MPI = 1 - 1
> Frame Time = 3003 - 3003
> Rate Control Enable = 0 - 0
> Rate Controller =  - 0
> Frame Height = 288 - 288
> Protocol =  - 0
> Max Bit Rate = 621700 - 621700
> Clock Rate = 90000 - 90000
> Max Rx Frame Height = 288 - 288
> Max Rx Frame Width = 352 - 352
> QCIF MPI = 4 - 4
> Min Rx Frame Height = 96 - 96
> Min Rx Frame Width = 128 - 128
> Annex D = 0 - 0
> Max Tx Packet Size = 8192 - 8192
> Target Bit Rate = 621700 - 621700
> Frame Width = 352 - 352
> Content Role = No Role - 0
> Content Role Mask = 0 - 0
> Tx Key Frame Period = 125 - 125
>
> AUDIO SINK
>
> hang <-- I hanged it after a while (3 seconds)
>
> ===================
>   Call statistics
> ===================
> A Rx/Tx    101/150
> V Rx/Tx      0/101
>
> #=======================================================
>
> my CreateMediaStream method:
>
> OpalMediaStream* MyLocalConnection::CreateMediaStream(const OpalMediaFormat
> &mediaFormat, unsigned sessionID, PBoolean isSource)
> {
> if (mediaFormat.GetMediaType() == OpalMediaType::Audio()      && isSource)
>  cout << "AUDIO SOURCE"  << endl;
> else if (mediaFormat.GetMediaType() == OpalMediaType::Audio() && !isSource)
>  cout << "AUDIO SINK"  << endl;
> else if (mediaFormat.GetMediaType() == OpalMediaType::Video() && isSource)
>  cout << "VIDEO SOURCE"  << endl;
> else if (mediaFormat.GetMediaType() == OpalMediaType::Video() && !isSource)
>  cout << "VIDEO SINK"  << endl;
>
> OpalMediaStream* oms = NULL;
>
>         //let's make sure we create everything only once
> static bool source = false;
> static bool sink = false;
>
> static bool Asource = false;
> static bool Asink = false;
>
>
> if (mediaFormat.GetMediaType() == OpalMediaType::Audio() && isSource)
> {
>  if (Asource)
> return NULL;
>
> Asource = true;
>  oms = new MyLocalMediaStream(*this, mediaFormat, sessionID, isSource,
> true);
>  }
>         else if (mediaFormat.GetMediaType() == OpalMediaType::Audio() &&
> !isSource)
>  {
>
> if (Asink)
> return NULL;
>
> Asink = true;
>
> oms = new MyLocalMediaStream(*this, mediaFormat, sessionID, isSource,
> true);
>
> }
> else if (mediaFormat.GetMediaType() == OpalMediaType::Video())
>  {
> PVideoInputDevice *pvid = NULL;
> PVideoOutputDevice *pvod = NULL;
>
>
> //HERE WHEN I CREATE SOURCE, SINK IS IGNORED (CODE FLOW DOES NOT ENTERS
> THIS METHOD ANYMORE)
> if (isSource == false && sink == false)
>  {
> sink = true;
> oms = new MyLocalMediaStream(*this, mediaFormat, sessionID, isSource,
> false);
>  }
> else if (source == false)
> {
>  source = true;
> pvid = new MyVideoInputDevice(mediaFormat);
> oms  = new OpalVideoMediaStream(*this, mediaFormat, sessionID, pvid, NULL,
> false);
>  }
>
> }
> else
>  {
> cout << "Request for stream skipped." << endl;
> }
>
> return oms;
> }
>
>