[h323plus] Video Resolution
Carlos Haj
unazona at hotmail.com
Fri Jan 15 05:38:57 EST 2010
Simon,
Thanks for your quick answer, just noticed that I had a bad thread name;)
Well, I have the codec.SetFrameSize(w, h); in my OpenVideoChannel
When adding capabilities I use
AddAllCapabilities(0, P_MAX_INDEX, "*");
SetVideoFrameSize(H323Capability::cifMPI);
Capabilities table shows as
Set 0: 0: audio
1: H.261-CIF{sw}
I receive an OpenVideoChannel for encoder, I open channel and attach
video reader + colourConverter, just after that I receive a close video
signal from a H245Negotation, here I join Call Stack
> testApp.exe!mmDDSVideoOutputBridge::close2() Ligne 359 C++
testApp.exe!mmVideoInputDevice::~mmVideoInputDevice() Ligne 43 + 0x1b C++
testApp.exe!mmVideoInputDevice::`scalar deleting destructor'() + 0x2b C++
testApp.exe!PVideoChannel::CloseVideoReader() Ligne 203 + 0x24 C++
testApp.exe!PVideoChannel::Close() Ligne 145 C++
testApp.exe!H323Codec::CloseRawDataChannel() Ligne 488 + 0x11 C++
testApp.exe!H323VideoCodec::Close() Ligne 747 C++
testApp.exe!H323Channel::CleanUpOnTermination() Ligne 716 C++
testApp.exe!H323_RTPChannel::CleanUpOnTermination() Ligne 1160 C++
testApp.exe!H245NegLogicalChannel::Release() Ligne 1219 C++
testApp.exe!H245NegLogicalChannel::HandleCloseAck(const
H245_CloseLogicalChannelAck & __formal={...}) Ligne 1086 C++
testApp.exe!H245NegLogicalChannels::HandleCloseAck(const
H245_CloseLogicalChannelAck & pdu={...}) Ligne 1372 + 0xf C++
testApp.exe!H323Connection::OnH245Response(const H323ControlPDU & pdu={...}) Ligne 3293 + 0x22 C++
testApp.exe!H323Connection::HandleControlPDU(const H323ControlPDU & pdu={...}) Ligne 3189 + 0x12 C++
testApp.exe!H323Connection::HandleControlData(PPER_Stream & strm={...}) Ligne 3170 + 0x18 C++
testApp.exe!H323Connection::HandleReceivedControlPDU(bool
readStatus=true, PPER_Stream & strm={...}) Ligne 3103 + 0x12 C++
testApp.exe!H323Connection::HandleControlChannel() Ligne 3085 + 0x13 C++
testApp.exe!H245TransportThread::Main() Ligne 700 C++
If I remove the
"SetVideoFrameSize(H323Capability::cifMPI);", I get the following capabilities set
1: H.261-CIF{sw}
H.261-QCIF{sw}
H.261{sw}
with exactly same strange behaviour, QCIF is not sending while CIF is being received, by the way qcif endpoint says
Local Video Codec - H.261-CIF{sw}
Local Resolution - 176x144
Remote Video Codec - H.261-CIF{sw}
Remote Resolution - 352x288
I tried a "ReorderCapabilities(PStringArray("QCIF"));" after my
addcapabilities, I ended up with both endpoints using QCIF and ignoring
my SetFrameSize anyway!!
Is there a glitch using H323Plus video plugins? my code works perfectly on openh323 stack.
"SetVideoFrameSize(H323Capability::cifMPI);" is supposed to define a maximum video resolution?! as you said in API doc "... to set the maximum framesize allowed to
the specified value "
Is
that usual to have H.261-CIF with a QCIF resolution? On which order
codec plugins can be added to avoid such problems of negotiation?
Regards
From: s.horne at packetizer.com
To: unazona at hotmail.com; h323plus at lists.packetizer.com
Subject: RE: [h323plus] Valid sessionID in OpenLogicalChannel command
Date: Fri, 15 Jan 2010 08:12:54 +1000
Carlos
In your
derived
H323EndPoint::OpenVideoChannel(()
(isEncoding)
codec.SetFrameSize(w,h);
Simon
From: h323plus-bounces at lists.packetizer.com
[mailto:h323plus-bounces at lists.packetizer.com] On Behalf Of Carlos
Haj
Sent: Friday, 15 January 2010 12:59 AM
To:
h323plus at lists.packetizer.com
Subject: Re: [h323plus] Valid sessionID
in OpenLogicalChannel command
Hello Guys,
I would like to have different frame sizes for two endpoints,
first I tried to play around with H323Endpoint::SetVideoFrameSize, but it seems
that part changes the maximum allowed size, which means that if I switch the
videoFrameSize to qCIF, I wouldn't be able to receive CIF from the other
endpoint. my test only received QCIF.
I tried also to modify the
OpalMediaFormat by using a GetWritableMediaFormat for a capability, that ended
with unusual CIF format while having a QCIF resolution.
On the other
hand, I looked Opal examples where they use an OpalManager, but unfortuntly that
seems incompatible with h323plus, while old openh323 tutorials and exampls don't
have any video plugins support.
How I can manage to receive and send
different resolutions (frame sizes) using H323plus?
I appreciate a lot
your help
Carlos
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