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

On (25/03/14 11:31), Thierry Simonnet <thierry simonnet esiee fr> put forth the proposition:

Le 25/03/2014 10:03, David Woodfall a écrit :

On (25/03/14 09:39), Thierry Simonnet <thierry simonnet esiee fr> put
forth the proposition:

Le 25/03/2014 08:54, David Woodfall a écrit :

On (24/03/14 15:12), Thierry Simonnet <thierry simonnet esiee fr> put
forth the proposition:

Le 24/03/2014 14:38, David Woodfall a écrit :

...................

I use ffmpeg from git (version # N-61767-gc08e523) with libx264
from git
./configure --enable-shared --enable-libx264 --enable-gpl
--disable-stripping && make && make install
Don't forget disable stripping. I also work with some limitation with
libav. (dyna, slopen, dlsym).
Dyna.cxx from opal dlopens libavcodec.so and check functions using
dlsym.
If libavcodec is stripped, dlsym fails (and of course dyna).
For avcodec_init, last versions of opal didn't use this call
anymore and
in opal_10 this call is deprecated -  see
opal/plugins/video/common/ffmpeg/libavcodec/avcodec.h


Thanks Thierry. This had me looking in the right direction. It turns
out to be --enable-shared in ffmpeg that is the problem. I still don't
get video for h.263 but that avcodec_init error is gone.

Here's what I see now:

2014/03/25 07:44:09.828   0:07.099          Pool:0x7f1008084700 Opal
Error creating transcoder instance from H.263 to YUV420P

I'll keep plugging away at this.
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For plugins : have a look at opal/plugins/video/
H.261 : internal plugin
H.263/H.263-1998 : ffmpeg
H.264 : system if using libx264
common : tools for ffmpeg use, especially dyna for dynamic loader


usr/lib64/opal-3.10.10/codecs/video/h261_vic_ptplugin.so
usr/lib64/opal-3.10.10/codecs/video/theora_ptplugin.so
usr/lib64/opal-3.10.10/codecs/video/mpeg4_ffmpeg_ptplugin.so
usr/lib64/opal-3.10.10/codecs/video/h264_x264_ptplugin.so
usr/lib64/opal-3.10.10/codecs/video/h263_ffmpeg_ptplugin.so
usr/lib64/opal-3.10.10/codecs/video/h264_video_pwplugin_helper



Check if configure generates Makefile and make builds all plugins.
I had to add  -fpermissive flag in Makefile.in, some CODEC_FLAG_Hxx in
h263xx.cxx, and change CodecID by AVCodecID


Yeah, I have a patch for that AVCodecID problem.

Here's a full message though. It seems to be looking in the wrong place
for them:

2014/03/25 08:59:40.120   0:04.095
Pool:0x7fd0900d8700         dlopen error ./: cannot read file data: Is
a directory
2014/03/25 08:59:40.120   0:04.095
Pool:0x7fd0900d8700         dlopen error /usr/local/lib/: cannot read
file data: Is a directory
2014/03/25 08:59:40.121   0:04.096
Pool:0x7fd0900d8700         dlopen error libavcodec: cannot open
shared object file: No such file or directory
2014/03/25 08:59:40.121   0:04.096
Pool:0x7fd0900d8700         dlopen error ./libavcodec: cannot open
shared object file: No such file or directory
2014/03/25 08:59:40.122   0:04.097
Pool:0x7fd0900d8700         dlopen error /usr/local/lib/libavcodec:
cannot open shared object file: No such file or directory
2014/03/25 08:59:40.122   0:04.097
Pool:0x7fd0900d8700         dlopen error avcodec-55: cannot open
shared object file: No such file or directory
2014/03/25 08:59:40.122   0:04.097
Pool:0x7fd0900d8700         dlopen error ./avcodec-55: cannot open
shared object file: No such file or directory
2014/03/25 08:59:40.123   0:04.098
Pool:0x7fd0900d8700         dlopen error /usr/local/lib/avcodec-55:
cannot open shared object file: No such file or directory
2014/03/25 08:59:40.125   0:04.101          Pool:0x7fd0900d8700
Opal    Error creating transcoder instance from H.264-0 to YUV420P
2014/03/25 08:59:40.257   0:04.232          Pool:0x7fd0900d8700
PVidInDev       G_STD failed for fd=59 with error: Inappropriate ioctl
for device
2014/03/25 08:59:40.262   0:04.237          Pool:0x7fd0900d8700
PVidInDev       G_STD failed for fd=59 with error: Inappropriate ioctl
for device
2014/03/25 08:59:40.286   0:04.261
Pool:0x7fd0900d8700         dlopen error ./: cannot read file data: Is
a directory
2014/03/25 08:59:40.286   0:04.261
Pool:0x7fd0900d8700         dlopen error /usr/local/lib/: cannot read
file data: Is a directory
2014/03/25 08:59:40.287   0:04.262
Pool:0x7fd0900d8700         dlopen error libavcodec: cannot open
shared object file: No such file or directory
2014/03/25 08:59:40.287   0:04.262
Pool:0x7fd0900d8700         dlopen error ./libavcodec: cannot open
shared object file: No such file or directory
2014/03/25 08:59:40.287   0:04.262
Pool:0x7fd0900d8700         dlopen error /usr/local/lib/libavcodec:
cannot open shared object file: No such file or directory
2014/03/25 08:59:40.288   0:04.263
Pool:0x7fd0900d8700         dlopen error avcodec-55: cannot open
shared object file: No such file or directory
2014/03/25 08:59:40.288   0:04.263
Pool:0x7fd0900d8700         dlopen error ./avcodec-55: cannot open
shared object file: No such file or directory
2014/03/25 08:59:40.288   0:04.263
Pool:0x7fd0900d8700         dlopen error /usr/local/lib/avcodec-55:
cannot open shared object file: No such file or directory
2014/03/25 08:59:40.289   0:04.264          Pool:0x7fd0900d8700
x264-pipe       Error when trying to remove UL named pipe - No such
file or directory
2014/03/25 08:59:40.289   0:04.264          Pool:0x7fd0900d8700
x264-pipe       Error when trying to remove DL named pipe - No such
file or directory
2014/03/25 08:59:40.291   0:04.266          Pool:0x7fd0900d8700
Opal    Error creating transcoder instance from YUV420P to H.264-0

Looks like I need to build this in a chroot, since my system is multilib.
That may be messing with it.


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PATHS can be set in configure to set LIBAVCODEC_LIBS and LIBAVUTIL_LIBS


Now the original error is back:

ekiga -d 4 2>&1 | grep -i Error
2014/03/25 11:05:34.692   0:03.945          Pool:0x7f9ba40c0700 H264    Error linking function avcodec_init, 
error=/usr/lib64/libavcodec.so.55: undefined symbol: avcodec_init

ffmpeg is not stripped and has both static and shared libs.

Opal configured by:

----
LIBAVCODEC_LIBS="/usr/lib${LIBDIRSUFFIX}/libavcodec.so" \
LIBAVUTIL_LIBS="/usr/lib${LIBDIRSUFFIX}/libavutil.so" \
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
 --prefix=/usr \
 --libdir=/usr/lib${LIBDIRSUFFIX} \
 --sysconfdir=/etc \
 --localstatedir=/var \
 --enable-shared \
 --build=$ARCH-slackware-linux

make VERBOSE=1
make install DESTDIR=$PK

----

Quite frankly I'm stumped...
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