can you share your screenshre.log (usually in HOME folder of the client) your stream has no video this is why preview image cannot be generated this is caused by the fact screen sharing app haven't send any video data :(
On Sat, Aug 27, 2016 at 12:06 AM, Tom Wagner <[email protected]> wrote: > I could record and share screen prior to the upgrade. > > The Java applet downloads and appears to run fine on my Debian Jessie/Java > 8 desktop. But response to the start/stop buttons in very sluggish, on the > order of 60-90 seconds to stop recording. > > The recordings display with the error link, and will post a player in the > white board area when clicked, but /it only plays audio, no video/. > > The server is running Debian Jessie. Updated from the CLI. > I have attempted to address this issue by recompiling ffmpeg per the > installation tutorial posted recently by Alvaro for Jessie. No joy. > > My client desktop is also Jessie, Sun Java 8, browsing with Chrome and > Firefox from the Debian packages. > > Here is the highlighted error (posting exit of '1') from the error link in > the recordings display in OM. > > process: previewFullFLV > command: /usr/local/bin/ffmpeg -y -i /opt/red5304/webapps/openmeeti > ngs/streams/hibernate/flvRecording_401.flv -vcodec mjpeg -vframes 1 -an > -f rawvideo -s 768x544 /opt/red5304/webapps/openmeeti > ngs/streams/hibernate/flvRecording_401.jpg > exception: null > error: ffmpeg version git-2016-08-21-1ae4b1e Copyright (c) 2000-2016 the > FFmpeg developers > built with gcc 4.9.2 (Debian 4.9.2-10) > configuration: --prefix=/root/ffmpeg_build --pkg-config-flags=--static > --extra-cflags=-I/root/ffmpeg_build/include > --extra-ldflags=-L/root/ffmpeg_build/lib > --bindir=/root/bin --enable-gpl --enable-libass --enable-libfdk-aac > --enable-libfreetype --enable-libmp3lame --enable-libopus > --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 > --enable-libx265 --enable-nonfree > libavutil 55. 29.100 / 55. 29.100 > libavcodec 57. 54.100 / 57. 54.100 > libavformat 57. 47.101 / 57. 47.101 > libavdevice 57. 0.102 / 57. 0.102 > libavfilter 6. 52.100 / 6. 52.100 > libswscale 4. 1.100 / 4. 1.100 > libswresample 2. 1.100 / 2. 1.100 > libpostproc 54. 0.100 / 54. 0.100 > [flv @ 0x26cf4a0] audio stream discovered after head already parsed > Input #0, flv, from '/opt/red5304/webapps/openmeetings/streams/hibernate/ > flvRecording_401.flv': > Metadata: > server : Red5 > creationdate : Sun Aug 21 20:13:12 PDT 2016 > canSeekToEnd : true > noaudiocodec : 0 > encoder : Lavf57.47.101 > Duration: 00:01:52.99, start: 0.000000, bitrate: 2886 kb/s > Stream #0:0: Audio: mp3, 22050 Hz, mono, s16p, 32 kb/s > Output #0, rawvideo, to '/opt/red5304/webapps/openmeet > ings/streams/hibernate/flvRecording_401.jpg': > Output file #0 does not contain any stream > > exitValue: 1 > out: > > Anyone else having trouble with session recording? Any guidance would be > appreciated. > > Tom Wagner > > -- WBR Maxim aka solomax
