Re: [Ekiga-list] No video with anything other than h261

[Eugen Dedu <Eugen Dedu pu-pm univ-fcomte fr>]

On 24/03/14 14:38, David Woodfall wrote:
> On (24/03/14 14:19), Damien Sandras <dsandras seconix com> put forth the
> proposition:
> > Le 24/03/14 13:49, David Woodfall a écrit :
> > > On (24/03/14 12:40), Dave Woodfall <dave dawoodfall net> put forth
> > > the proposition:
> > > > On (24/03/14 12:36), Dave Woodfall <dave dawoodfall net> put forth
> > > > the proposition:
> > > > > On (24/03/14 11:50), Damien Sandras <dsandras seconix com> put
> > > > > forth the proposition:
> > > > > > Le 24/03/14 10:11, David Woodfall a écrit :
> > > > > > > On (24/03/14 09:37), Eugen Dedu <Eugen Dedu pu-pm univ-fcomte fr>
> > > > > > > put forth the proposition:
> > > > > > > > On 24/03/14 09:33, Damien Sandras wrote:
> > > > > > > > > Le 23/03/14 19:13, David Woodfall a écrit :
> > > > > > > > > > On (23/03/14 17:52), Damien Sandras <dsandras seconix com> put
> > > > > > > > > > forth the
> > > > > > > > > > proposition:
> > > > > > > > > > > Le 23/03/14 14:37, David Woodfall a écrit :
> > > > > > > > > > > > If it helps any, these are the output of -d 4. The first is
> > > > > > > > > > > > using h261
> > > > > > > > > > > > and the second is h263. I rang the ekiga.net echo line then
> > > > > > > > > > > > hungup
> > > > > > > > > > > > afterwards:
> > > > > > > > > > > >
> > > > > > > > > > > > h261: http://www.r0t.co.uk/paste/p/qJ9yve44.html
> > > > > > > > > > > > h263: http://www.r0t.co.uk/paste/p/cbgaee38.html
> > > > > > > > > > >
> > > > > > > > > > > You should report a bug to your distribution maintainer.
> > > > > > > > > > > Things are badly
> > > > > > > > > > > compiled:
> > > > > > > > > > >
> > > > > > > > > > > 2014/03/23 13:31:34.472 0:05.195 Pool:0x7f799496d700 H263+
> > > > > > > > > > > Successfully
> > > > > > > > > > > loaded 'libavcodec.so.55'
> > > > > > > > > > >
> > > > > > > > > > > 2014/03/23 13:31:34.472 0:05.195 Pool:0x7f799496d700 H263+
> > > > > > > > > > > Successfully
> > > > > > > > > > > loaded 'libavutil.so.52'
> > > > > > > > > > >
> > > > > > > > > > > 2014/03/23 13:31:34.472 0:05.195 Pool:0x7f799496d700 H263+
> > > > > > > > > > > Error linking
> > > > > > > > > > > function avcodec_init, error=/usr/lib64/libavcodec.so.55:
> > > > > > > > > > > undefined symbol:
> > > > > > > > > > > avcodec_init
> > > > > > > > > > >
> > > > > > > > > > > 2014/03/23 13:31:34.472 0:05.195 Pool:0x7f799496d700
> > > > > > > > > > > H.263-RFC2190 Encoder
> > > > > > > > > > > closed
> > > > > > > > > > >
> > > > > > > > > > > My guess would be that it links to a different libavcodec
> > > > > > > > > > > library than the
> > > > > > > > > > > one whose headers were used to compile things.
> > > > > > > > > >
> > > > > > > > > > I've just recompiled both Opal and Ekiga and get the same error.
> > > > > > > > > >
> > > > > > > > > > There's no way that it's compiled against a different version. Is
> > > > > > > > > > there a recommended ffmpeg version to use?
> > > > > > > > > >
> > > > > > > > > > Currently, I have version 2.1.4.
> > > > > > > > > >
> > > > > > > > > > Have you seen this?:
> > > > > > > > > > http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2012-April/123454.html
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > I will have to patch Opal by the look of it.
> > > > > > > > >
> > > > > > > > > If the compilation succeeded, that means that avcodec_init was
> > > > > > > > > present in your
> > > > > > > > > headers.
> > > > > > > > > If it fails at runtime, that means that the library you are
> > > > > > > > > linking to does not
> > > > > > > > > contain that method.
> > > > > > > > >
> > > > > > > > > => your headers and libraries are different, believe me
> > > > > > > >
> > > > > > > > Perhaps you have ffmpeg/libav installed from your distribution,
> > > > > > > > and you also installed it manually? During compilation, one of
> > > > > > > > them is used, and during execution the other gets used.
> > > > > > >
> > > > > > > Slackware doesn't have ffmpeg in it's stock repo. But like I said I
> > > > > > > rebuilt both Opal and Ekiga from what I had installed, and there is
> > > > > > > only one version installed.
> > > > > >
> > > > > > Impossible !
> > > > > > What does :
> > > > > > grep avcodec_init /usr/ -r
> > > > > > return ?
> > > > >
> > > > > Ok
> > > > >
> > > > > grep -r avcodec_init /usr
> > > > > Binary file /usr/bin/avidemux2_gtk matches
> > > > > Binary file /usr/bin/audacity matches
> > > > > Binary file /usr/bin/avidemux2_qt4 matches
> > > > > Binary file /usr/bin/avidemux2_cli matches
> > > > > Binary file /usr/lib64/libADM5avcodec.so.53 matches
> > > > > Binary file
> > > > > /usr/lib64/opal-3.10.10/codecs/video/mpeg4_ffmpeg_ptplugin.so matches
> > > > > Binary file
> > > > > /usr/lib64/opal-3.10.10/codecs/video/h264_x264_ptplugin.so matches
> > > > > Binary file
> > > > > /usr/lib64/opal-3.10.10/codecs/video/h263_ffmpeg_ptplugin.so matches
> > > > > Binary file /usr/lib64/xine/plugins/1.30/xineplug_decode_ff.so matches
> > > > > Binary file /usr/lib64/libavcodec.a matches
> > > > > Binary file
> > > > > /usr/lib64/ADM_plugins/videoEncoder/libADM_vidEnc_avcodec.so matches
> > > > >
> > > > > So the static /usr/lib64/libavcodec.a has the old _init() function,
> > > > > but:
> > > >
> > > > ugh that was from libav. Thought I'd removed it.
> > >
> > > Ok so after removing libav and rebuilding yet again:
> > >
> > > ekiga -d 4 2>&1 | grep Error
> > > 2014/03/24 12:48:13.627   0:04.360          Pool:0x7fa488e42700
> > > H263+   Error linking function avcodec_init,
> > > error=/usr/lib64/libavcodec.so.55: undefined symbol: avcodec_init
> > > 2014/03/24 12:48:13.629   0:04.362          Pool:0x7fa488e42700 Opal
> > > Error creating transcoder instance from H.263 to YUV420P
> > > 2014/03/24 12:48:13.759   0:04.492          Pool:0x7fa488e42700
> > > H263+   Error linking function avcodec_init,
> > > error=/usr/lib64/libavcodec.so.55: undefined symbol: avcodec_init
> > > 2014/03/24 12:48:13.760   0:04.493          Pool:0x7fa488e42700 Opal
> > > Error creating transcoder instance from YUV420P to H.263
> >
> > That means that when compiling OPAL the avcodec_init method was
> > present in the ffmpeg headers, and when running the executable, it is
> > not present anymore.
> >
> > I see Opal picks the plugins in /usr/lib64/opal-3.10.10/codecs/video/
> >
> > Isn't that the place of an older Opal plugin that was compiled once
> > with an older ffmpeg ?

David, are you sure the few lines above do not point to the problem? 
Have you removed the codecs before recompiling opal?

> > Anyway, I can not really help more than this. When you link to a
> > library at runtime and it compiains that it does not find a symbol, it
> > means that the compilation was done with headers from a different (and
> > incompatible) version of the library.
>
> All I did, and this is what I did originally, is build/install ffmpeg
> 2.1 and then Opal/ekiga.
>
> I don't know where plugins should go, but here is a list of all:
>
> http://www.r0t.co.uk/paste/p/pdoGLS92.html

They are in the right location.

> Trust me, there is no other opal or ffmpeg on my system.
> Both the ffmpeg and opal slackbuilds are on slackbuilds.org. If they
> are wrong please let me know.

--
Eugen