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Autres articles (29)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • Other interesting software

    13 avril 2011, par

    We don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
    The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
    We don’t know them, we didn’t try them, but you can take a peek.
    Videopress
    Website : http://videopress.com/
    License : GNU/GPL v2
    Source code : (...)

Sur d’autres sites (7384)

  • Révision 23679 : report de r23678

    20 juillet 2017, par brunobergot@gmail.com

    Bugfix dans recup_date() quand on lui passe une chaîne du type 2017-07

  • Monit not restarting ffmpeg live stream when disconnected

    21 juillet 2017, par digibread

    No matter what I try I cannot get Monit to restart my ffmpeg live stream even though my bash script works from the command line. I start the ffmpeg live stream and all is working. Monit status shows that is ffmpeg is running. I then reboot the camera and the connection is lost, Monit tries to start it with the log file entries below. the config files.
    Here is my setup. Any help is greatly appreciated.

    Monit Status

    Process 'ffmpeg'
    
status                       Running
    
monitoring status            Monitored
    
monitoring mode              active
    
on reboot                    start
    
pid                          17349
    
parent pid                   1
    
uid                          0
    
effective uid                0
    
gid                          0
    
uptime                       0m
    
threads                      1
    
children                     0
    
cpu                          0.0%
    
cpu total                    0.0%
    
memory                       8.3% [40.4 MB]
    
memory total                 8.3% [40.4 MB]
    
port response time           -
    
data collected               Fri, 21 Jul 2017 15:36:31

    My bash file in /etc/init.d/monitoring1.sh

    #!/bin/bash
    
pid_file="/var/run/ffmpeg.pid"
    

    
case "$1" in
    
 restart)
    
    /etc/init.d/monitoring1.sh stop
    
    /etc/init.d/monitoring1.sh start
    
     ;;
    

    
 start)
    
    rm $pid_file
    
    /usr/bin/ffmpeg -timeout -1 -i rtsp://user:pw@mydomain:port/h264Preview_01_sub http://localhost:8090/monitoring1.ffm &
    
    ch_pid=$!
    
    echo "Start Monitoring1: ffmpeg = $ch_pid";
    
    echo $ch_pid > $pid_file
    
     ;;
    

    
 stop)
    
    echo "Stop ffmpeg Monitoring1";
    
    kill `cat $pid_file` &> /dev/null
    
     ;;
    
*)
    
   echo "Usage: /etc/init.d/streambash.sh {start|stop|restart}"
    
   exit 1
    
    ;;
    
esac
    
exit 0
    
echo $pid_file

    My /etc/monit/conf-available/ffmpeg

    check process ffmpeg with pidfile /var/run/ffmpeg.pid
    
group nogroup
    
start program = "/bin/bash /etc/init.d/monitoring1.sh start"
    
stop program = "/bin/bash /etc/init.d/monitoring1.sh stop"
    
if failed host localhost port 8090 type tcp with timeout 15 seconds for 5 cycles
    
   then restart

    /var/log/monit.log

    [UTC Jul 21 15:36:31] info     : 'ffmpeg' process is running with pid 17349
    
[UTC Jul 21 15:36:31] debug    : 'ffmpeg' zombie check succeeded
    
[UTC Jul 21 15:36:31] debug    : 'ffmpeg' connection test paused for 13 s while the process is starting
    
[UTC Jul 21 15:37:01] debug    : 'ffmpeg' process is running with pid 17349
    
[UTC Jul 21 15:37:01] debug    : 'ffmpeg' zombie check succeeded
    
[UTC Jul 21 15:37:01] debug    : 'ffmpeg' succeeded testing protocol [DEFAULT] at [localhost]:8090 [TCP/IP] [response time 1.152 ms]
    
[UTC Jul 21 15:37:01] debug    : 'ffmpeg' connection succeeded to [localhost]:8090 [TCP/IP]
    
[UTC Jul 21 15:43:02] debug    : 'ffmpeg' process test failed [pid=17349] -- No such process
    
[UTC Jul 21 15:43:02] error    : 'ffmpeg' process is not running
    
[UTC Jul 21 15:43:02] info     : 'ffmpeg' trying to restart
    
[UTC Jul 21 15:43:02] debug    : 'ffmpeg' process test failed [pid=17349] -- No such process
    
[UTC Jul 21 15:43:02] debug    : 'ffmpeg' process test failed [pid=17349] -- No such process
    
[UTC Jul 21 15:43:02] info     : 'ffmpeg' start: '/bin/bash /etc/init.d/monitoring1.sh start'
    
[UTC Jul 21 15:43:02] debug    : Start Monitoring1: ffmpeg = 17421
    
[UTC Jul 21 15:43:02] debug    : 'ffmpeg' started
    
[UTC Jul 21 15:43:32] debug    : 'ffmpeg' process test failed [pid=17421] -- No such process
    
[UTC Jul 21 15:43:32] error    : 'ffmpeg' process is not running
    
[UTC Jul 21 15:43:32] info     : 'ffmpeg' trying to restart
    
[UTC Jul 21 15:43:32] debug    : 'ffmpeg' process test failed [pid=17421] -- No such process
    
[UTC Jul 21 15:43:32] debug    : 'ffmpeg' process test failed [pid=17421] -- No such process
    
[UTC Jul 21 15:43:32] info     : 'ffmpeg' start: '/bin/bash /etc/init.d/monitoring1.sh start'
    
[UTC Jul 21 15:43:32] debug    : Start Monitoring1: ffmpeg = 17430
    
[UTC Jul 21 15:43:32] debug    : 'ffmpeg' started
    
[UTC Jul 21 15:44:02] debug    : 'ffmpeg' process test failed [pid=17430] -- No such process
    
[UTC Jul 21 15:44:02] error    : 'ffmpeg' process is not running
    
[UTC Jul 21 15:44:02] info     : 'ffmpeg' trying to restart
    
[UTC Jul 21 15:44:02] debug    : 'ffmpeg' process test failed [pid=17430] -- No such process
    
[UTC Jul 21 15:44:02] debug    : 'ffmpeg' process test failed [pid=17430] -- No such process
    
[UTC Jul 21 15:44:02] info     : 'ffmpeg' start: '/bin/bash /etc/init.d/monitoring1.sh start'
    
[UTC Jul 21 15:44:02] debug    : Start Monitoring1: ffmpeg = 17436
    
[UTC Jul 21 15:44:02] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:03] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:03] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:04] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:05] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:06] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:07] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:08] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:09] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:10] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:11] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:12] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:13] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:14] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:15] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:16] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:17] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:18] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:19] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:20] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:21] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:22] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:23] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:24] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:25] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:26] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:27] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:28] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:29] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:30] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:31] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:32] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:44:32] error    : 'ffmpeg' failed to start (exit status 0) -- '/bin/bash /etc/init.d/monitoring1.sh start': Start Monitoring1: ffmpeg = 17436
    
[UTC Jul 21 15:45:02] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:45:02] error    : 'ffmpeg' process is not running
    
[UTC Jul 21 15:45:02] info     : 'ffmpeg' trying to restart
    
[UTC Jul 21 15:45:02] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:45:02] debug    : 'ffmpeg' process test failed [pid=17436] -- No such process
    
[UTC Jul 21 15:45:02] info     : 'ffmpeg' start: '/bin/bash /etc/init.d/monitoring1.sh start'
    
[UTC Jul 21 15:45:03] debug    : Start Monitoring1: ffmpeg = 17448
    
[UTC Jul 21 15:45:03] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:03] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:03] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:04] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:06] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:07] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:08] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:09] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:10] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:11] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:12] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:13] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:14] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:15] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:16] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:17] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:18] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:19] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:20] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:21] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:22] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:23] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:24] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:25] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:26] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:27] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:28] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:29] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:30] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:31] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:32] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:33] debug    : 'ffmpeg' process test failed [pid=17448] -- No such process
    
[UTC Jul 21 15:45:33] error    : 'ffmpeg' failed to start (exit status 0) -- '/bin/bash /etc/init.d/monitoring1.sh start': Start Monitoring1: ffmpeg = 17448

  • WebM live streaming via DASH

    4 juin 2018, par ewack

    I am following the instructions here to try to make WebM live streaming via DASH. My input is from an Axis camera and it is streaming as h264 encoding. I am using node to spin up the ffmpeg processes. I am able to create the .hdr file and the .chk files. The .mpd file is even created but it’s empty and I get an error saying :

    Could not write header for output file #0 (incorrect codec parameters ?): Operation not permittedStream mapping: Stream #0:0 -> #0:0 (copy)

    Here’s all of my code :

    var express = require('express');
    
spawn = require('child_process').spawn;
    

    
var app = express();
    

    
app.use(express.static(__dirname + '/public'));
    

    
app.listen(8080);
    
console.log("Running on Port 8080");
    

    
var ffmpeg1 = spawn('ffmpeg', [
    
    '-y',
    
    //video
    
    '-i', 'rtsp://admin:password@192.168.1.54:554/axis-media/media.amp?videocodec=h264&resolution=1280x720',
    

    
    '-map', '0:0',
    
    '-pix_fmt', 'yuv420p',
    
    '-color_range', '2',
    
    '-c:v', 'libvpx-vp9',
    

    
    '-s', '1280x720',
    
    '-keyint_min', '25',
    
    '-g', '25', 
    

    
    // //VP9_LIVE_PARAMS
    
    '-speed', '6', 
    
    '-tile-columns', '4',
    
    '-frame-parallel', '1', 
    
    '-threads', '8', 
    
    '-static-thresh', '0', 
    
    '-max-intra-rate', '300',
    
    '-deadline', 'realtime', 
    
    '-lag-in-frames', '0',
    
    '-error-resilient', '1',
    

    
    '-f', 'webm_chunk',
    
    '-header', 'public/glass_360.hdr',
    
    '-chunk_start_index', '1',
    
    'public/glass_360_%d.chk',
    
]);
    

    

    
setTimeout(()=> {
    
  var ffmpeg2 = spawn('ffmpeg', [
    
    '-y',
    
    '-f', 'webm_dash_manifest',
    
    '-live', '1',
    
    '-i', 'public/glass_360.hdr',
    
    '-c', 'copy',
    
    '-map', '0',
    
    '-r', '25',
    
    '-framerate', '25',
    

    
    '-f', 'webm_dash_manifest',
    
    '-live', '1',
    

    
    '-adaptation_sets', '"id=0,streams=0"',
    
    '-chunk_start_index', '1',
    
    '-chunk_duration_ms', '2000',
    
    '-time_shift_buffer_depth', '7200',
    
    '-minimum_update_period', '7200',
    

    
    'public/glass_live_manifest.mpd'
    
  ]);
    
  ffmpeg2.stdout.on('data', 
    
      function (data) {
    
          console.log('ff2std: ' + data);
    
      }
    
  );
    

    
  ffmpeg2.stderr.on('data', 
    
      function (data) {
    
          console.log('ff2err: ' + data);
    
      }
    
  );
    
}, 5000);
    

    
ffmpeg1.stdout.on('data', 
    
    function (data) {
    
        console.log('ff1std: ' + data);
    
    }
    
);
    

    
ffmpeg1.stderr.on('data', 
    
    function (data) {
    
        console.log('ff1err: ' + data);
    
    }
    
);

    Here is all of my output :

    Running on Port 8080
    
ff1err: ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers
    
  built with Apple LLVM version 6.0 (clang-600.0.57) (based on LLVM 3.5svn)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-frei0r --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags=-I/usr/local/Cellar/openjpeg/2.1.2/include/openjpeg-2.1 --enable-nonfree --enable-vda
    

    
ff1err:   libavutil      55. 34.101 / 55. 34.101
    
  libavcodec     57. 64.101 / 57. 64.101
    
  libavformat    57. 56.101 / 57. 56.101
    
  libavdevice    57.  1.100 / 57.  1.100
    
  libavfilter     6. 65.100 /  6. 65.100
    
  libavresample   3.  1.  0 /  3.  1.  0
    
  libswscale      4.  2.100 /  4.  2.100
    
  libswresample   2.  3.100 /  2.  3.100
    
  libpostproc    54.  1.100 / 54.  1.100
    

    
ff1err: Input #0, rtsp, from 'rtsp://admin:password@192.168.1.54:554/axis-media/media.amp?videocodec=h264&resolution=1280x720':
    
  Metadata:
    
    title           : Session streamed with GStreamer
    
    comment         : rtsp-server
    
  Duration: N/A, start: 0.033344
    
ff1err: , bitrate: N/A
    
    Stream #0:0: Video: h264 (Main), yuvj420p(pc, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], 30 fps, 30 tbr, 90k tbn, 180k tbc
    

    
ff1err: [swscaler @ 0x7f8df281bc00] deprecated pixel format used, make sure you did set range correctly
    

    
ff1err: [libvpx-vp9 @ 0x7f8df2800600] v1.6.1
    

    
ff1err: Output #0, webm_chunk, to 'public/glass_360_%d.chk':
    
  Metadata:
    
    title           : Session streamed with GStreamer
    
    comment         : rtsp-server
    
    encoder         : Lavf57.56.101
    

    
ff1err:     Stream #0:0: Video: vp9 (libvpx-vp9), yuv420p(pc), 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 200 kb/s, 25 fps, 1k tbn, 25 tbc
    
    Metadata:
    
      encoder         : Lavc57.64.101 libvpx-vp9
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> vp9 (libvpx-vp9))
    
Press [q] to stop, [?] for help
    

    
ff1err: frame=   10 fps=0.0 q=0.0 size=N/A time=00:00:00.36 bitrate=N/A speed=0.71x    
    
ff1err: frame=   25 fps= 25 q=0.0 size=N/A time=00:00:00.96 bitrate=N/A speed=0.946x    
    
ff1err: frame=   40 fps= 26 q=0.0 size=N/A time=00:00:01.56 bitrate=N/A speed=1.03x    
    
ff1err: frame=   55 fps= 27 q=0.0 size=N/A time=00:00:02.16 bitrate=N/A speed=1.07x    
    
ff1err: frame=   70 fps= 28 q=0.0 size=N/A time=00:00:02.76 bitrate=N/A speed=1.09x    
    
ff1err: frame=   85 fps= 28 q=0.0 size=N/A time=00:00:03.36 bitrate=N/A speed=1.11x    
    
ff2err: ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers
    
  built with Apple LLVM version 6.0 (clang-600.0.57) (based on LLVM 3.5svn)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-frei0r --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags=-I/usr/local/Cellar/openjpeg/2.1.2/include/openjpeg-2.1 --enable-nonfree --enable-vda
    

    
ff2err:   libavutil      55. 34.101 / 55. 34.101
    
  libavcodec     57. 64.101 / 57. 64.101
    
  libavformat    57. 56.101 / 57. 56.101
    
  libavdevice    57.  1.100 / 57.  1.100
    
  libavfilter     6. 65.100 /  6. 65.100
    
  libavresample   3.  1.  0 /  3.  1.  0
    
  libswscale      4.  2.100 /  4.  2.100
    
  libswresample   2.  3.100 /  2.  3.100
    
  libpostproc    54.  1.100 / 54.  1.100
    

    
ff2err: [webm_dash_manifest @ 0x7fbc5b80b400] Could not find codec parameters for stream 0 (Video: vp9, none, 1280x720): unspecified pixel format
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    

    
ff2err: Input #0, webm_dash_manifest, from 'public/glass_360.hdr':
    
  Metadata:
    
    title           : Session streamed with GStreamer
    
    encoder         : Lavf57.56.101
    
  Duration: N/A, bitrate: N/A
    
    Stream #0:0: Video: vp9, none, 1280x720
    
ff2err: , SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 1k tbn, 1k tbc (default)
    
    Metadata:
    
      webm_dash_manifest_file_name: glass_360.hdr
    
      webm_dash_manifest_track_number: 1
    

    
ff2err: Could not write header for output file #0 (incorrect codec parameters ?): Operation not permittedStream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    

    
ff2err:     Last message repeated 1 times
    

    
ff1err: frame=  101 fps= 29 q=0.0 size=N/A time=00:00:04.00 bitrate=N/A speed=1.13x    
    
ff1err: frame=  116 fps= 29 q=0.0 size=N/A time=00:00:04.60 bitrate=N/A speed=1.14x    
    
ff1err: frame=  131 fps= 29 q=0.0 size=N/A time=00:00:05.20 bitrate=N/A speed=1.15x    
    
ff1err: frame=  146 fps= 29 q=0.0 size=N/A time=00:00:05.80 bitrate=N/A speed=1.15x    
    
ff1err: frame=  161 fps= 29 q=0.0 size=N/A time=00:00:06.40 bitrate=N/A speed=1.15x    
    
ff1err: frame=  177 fps= 29 q=0.0 size=N/A time=00:00:07.04 bitrate=N/A speed=1.16x    
    
ff1err: frame=  192 fps= 29 q=0.0 size=N/A time=00:00:07.64 bitrate=N/A speed=1.16x    
    
ff1err: frame=  207 fps= 29 q=0.0 size=N/A time=00:00:08.24 bitrate=N/A speed=1.16x    
    
ff1err: frame=  222 fps= 29 q=0.0 size=N/A time=00:00:08.84 bitrate=N/A speed=1.17x    
    
ff1err: frame=  237 fps= 29 q=0.0 size=N/A time=00:00:09.44 bitrate=N/A speed=1.17x    
    
ff1err: frame=  252 fps= 29 q=0.0 size=N/A time=00:00:10.04 bitrate=N/A speed=1.17x  

    Why is ffmpeg creating an empty .mpd file ?

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