Re: [Opalvoip-user] Any patches for new ffmpeg?

[Eugen D. <Eug...@pu...>]

On 25/11/11 10:20, Alexander Sbitnev wrote:
>     Hi there!
> Current debian stable distrib contain libavcodec libraries beyond 0.6.x
> series. Is there any patches for 3.10 and trunk opal compatible with new
> 0.7.x-0.8.x libavcodec libs?
> I've checked some patch parts of patch for older versions of opal
> https://build.opensuse.org/package/view_file?file=opal-config-fix.patch&package=opal&project=home%3Ajejb1%3AVideoConf&srcmd5=4b247688daba331145d9e035137fcc3d
> It allow me to compile but looks like H.264 isn't quite working with
> this patch. Or maybe it's just trunk source. H.263 looks working though.

There is nothing done for ffmpeg >= 0.7 in current opal.  As far as I 
see, the first problem is that decoder functions are absent:
snoopy:~$ l /usr/lib/libavcodec.so.5*
lrwxrwxrwx 1 root      21 Nov 16 20:26 /usr/lib/libavcodec.so.52 -> 
libavcodec.so.52.72.2
-rw-r--r-- 1 root 5009368 Jul 30 12:37 /usr/lib/libavcodec.so.52.72.2
lrwxrwxrwx 1 root      20 Nov 16 20:26 /usr/lib/libavcodec.so.53 -> 
libavcodec.so.53.5.0
-rw-r--r-- 1 root 6163168 Sep  5 07:34 /usr/lib/libavcodec.so.53.5.0
snoopy:~$ objdump -T /usr/lib/libavcodec.so.5* |grep h26.*decoder
00000000006bd5a0 g    DO .data	0000000000000080  LIBAVCODEC_52 h263i_decoder
00000000006bc660 g    DO .data	0000000000000080  LIBAVCODEC_52 h261_decoder
00000000006bcda0 g    DO .data	0000000000000080  LIBAVCODEC_52 h263_decoder
00000000006bce40 g    DO .data	0000000000000080  LIBAVCODEC_52 
h264_vdpau_decoder
00000000006bcec0 g    DO .data	0000000000000080  LIBAVCODEC_52 h264_decoder
00000000006bd5a0 g    DO .data	0000000000000080  LIBAVCODEC_52 h263i_decoder
00000000006bc660 g    DO .data	0000000000000080  LIBAVCODEC_52 h261_decoder
00000000006bcda0 g    DO .data	0000000000000080  LIBAVCODEC_52 h263_decoder
00000000006bce40 g    DO .data	0000000000000080  LIBAVCODEC_52 
h264_vdpau_decoder
00000000006bcec0 g    DO .data	0000000000000080  LIBAVCODEC_52 h264_decoder

> P.S. Trying to execute codectest with excessive video resolution size
> i've got SEGV. Probably a minor problem to consider.
>
> [h263 @ 0x1a64760] removing common factors from framerate
> [h263 @ 0x1a64760] The specified picture size of 1280x720 is not valid
> for the H.263 codec.
> Valid sizes are 128x96, 176x144, 352x288, 704x576, and 1408x1152. Try
> H.263+.
> Dropping 0% of encoded frames
>     0:00.348                    codectest     tlibthrd.cxx(588)   PTLib
> Thread high water mark set: 3
> codectest>    0:00.348          Video:0x3511c700     tlibthrd.cxx(500)
> PTLib   Started thread 0x7fffb8b9ab70 (13006) Video:0x3511c700
> Segmentation fault

We need a gdb stack trace if possible.

-- 
Eugen