Vladimir
There are variations in the plugin architecture between Opal and H323plus. Hence why I did not supply the actual plugin files. I can confirm that the h264 h323plus plugin (with h239) works without issue. I have seen issues with the H.263+ implementation (originally from Opal) and why the old h.263 implementation (h263ffmpeg_pwplugin.dll) is still in the H323plus CVS which includes the old FFMPEG binary (libavcodec.dll).
Simon
From: Vladimir Fekete [mailto:vladko.fekete@gmail.com]
Sent: 08 February 2011 03:40
To: ZAHRA dehghanianfard
Cc: h323plus@lists.packetizer.com; opal; opal
Subject: Re: [Opalvoip-devel] [h323plus] error H.263
Hello all,
It is little bit off-topic, since it concerns OPAL 3.9.0 and above (e.g. trunk from svn), but, I can confirm, that H.263 codec support can be nicely without problems compiled under windows 7 32bit using VisualStudio2010 solution which is in OPAL 3.9.0 and above. (i did it). I tried also other codecs one can found in plugin directory of OPAL. Also PTlib and OPAL itself - both might be compiled directly from solution.
Codec plugins I was able to make run so far is (capability list from openam):
Cisco G.7231AR{sw} <1>
Cisco G.7231A{sw} <2>
G.711-ALaw-64k <3>
G.711-uLaw-64k <4>
G.723.1{sw} <5>
H.261-CIF{sw} <6>
H.261-QCIF{sw} <7>
H.261{sw} <8>
H.263-CIF{sw} <9>
H.263-QCIF{sw} <10>
H.263{sw} <11>
H.239 Capabilities <12>
H.263{sw} <1>
however today I found out, that data transfer of H.263 is broken (looks like broken paylod in rtp data stream). H.261 works fine (i was testing openmcu together with openphone and myphone) and I could see this behavior on both - "pure opal" applications as well as mixed opal/h323+ (yes I know that opal uses h323+ or part of it). Right now I'm not entirely sure whether it is caused by me or there is a bug. I have a plan to investigate it further.
Concernig plugin files, I was able to compile in the end (e.g. what you get from opal/plugins/ after build) :
g7231acm_pwplugin.dll
G726_ptplugin.dll
h261vic_pwplugin.dll
libavcodec.dll
Vic H.261 Video Codec.lib
ffmpeg H.263 Video Codec.lib
h263ffmpeg_pwplugin.dll
I had to download ffmpeg and compile it as well in order to build opal plugins for ffmpeg h263.
Concerning H264 plugin for OPAL - there is a problem around plugin-config.h file. Project uses it but according to svn it is not supported anymore (at least I saw the last one in OPAL 3.6.something (maybe even lesser version) and after that it was deleted from svn tree), so one can have x264 build under windows (which can be done also with little patience, but will have problems with opal plugin). - that's so far my observation.
Hope it helped!
Best regards,
Vladimir
On Mon, Feb 7, 2011 at 12:01 PM, Simon Horne <s.horne@packetizer.com> wrote:
I think both the opal and h323plus community can benefit.
http://www.h323plus.org/source/download/ffmpeg_x264.zip
Place all files in your application directory.
The FFMPEG (with w32threads) and X264 is built with mingw/msys. x264plugin_helper.exe is built with vs2008 and requires vs2008 runtime.
Simon
From: Robert Jongbloed [mailto:robertj@voxlucida.com.au]
Sent: 07 February 2011 15:48
To: ZAHRA dehghanianfard
Cc: opal; opal
Subject: Re: [Opalvoip-devel] error H.263
The answer to your questions are:
1) Yes, but you need to compile it.
2) The result of compiling it is a DLL
3) You will have to figure out why it doesn't compile under windows.
I have to admit to not being able to get the H.263 (or x264) codecs to compile and work under Windows, though I have only tried somewhat briefly. Unfortunately the authors of all the libraries mainly use Linux, though it is my understanding that it can be compiled using MinGW/Cygwin.
I am sure the OPAL community would be incredibly grateful to anyone that can provide a pre-built binary for the H.263 (and x264!) codec.
--------
Robert Jongbloed
Vox Lucida Pty. Ltd.
On 03/02/2011, at 5:33 PM, ZAHRA dehghanianfard wrote:
Hi robert. Many thanks for your last support; I need to use OpenPhone3.8.2 by H.263 codec run. 1) Is OpenPhone 3.8.2 with Opal 3.8.2 & Ptlib2.8.2 support H.263 codec inside? 2) If the above response is YES, Are you suggesting any H.263 DLL file? 3) I find a source that name is “H.263-1998” then I download that and compiles it but I find below Error inside: 1>------ Build started: Project: H.263-1998 (FFMPEG) Video Codec, Configuration: Debug Win32 ------ I try to solve this problem by download a “libavcodec” that use some header & DLL file that I copy in “C:\opal\plugin\video\common” but I take below error: 1>------ Build started: Project: H.263-1998 (FFMPEG) Video Codec, Configuration: Debug Win32 ------ Please guide me to i can have H.263 codec with DLL & source over OpenPhone 3.8.2 here. I am in wait for your response. Best Regards. Zahra. |
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