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• Evolution #3629 : Pouvoir changer la date d’un article quand il est en cours de rédaction

  4 mai 2017, par cedric -

  Le ticket n’est pas mega clair : s’agit-il de changer la date depuis le formulaire edition de l’article, ou de pouvoir changer la date lorsque l’article est en statut redaction ?
  Le fait est que la date est reinitialisée au moment de la publication — sauf si elle est dans le futur, pour les post-publications, car on peut la changer quand l’article est proposé à la publication

• how to stream an IP webcam (h264) to youtube live rtmp using avconv or ffmpeg ?

  20 juin 2015, par Baba

  I have an IP webcam HiSilicon Hi3516C that I can successfully access from a raspberry pi. I can get still images by using a command like this :

  avconv -i "rtsp://192.168.1.10:554" myfile.jpg

  now instead of still images I would like to stream the video to youtube live. I have configured an event in my youtube live account and gotten a stream name and a rtmp url.

  My youtube ingestion settings are :
  custom ingestion : bitrate 400kbps - 1000 kbps (360p)
  encoder : Other encoder

  my webcam specs says :
  Webcam : HiSilicon Hi3516C
  Video Encoding
   H.264 baseline profile
   H.264 main profile Level 4.0
   MJPEG/JPEG baseline
  Video Encoding Performance
   At most 2-megapixel resolution for H.264 encoding
   Real-time H.264&JPEG encoding of multiple types of
  streams : 1080p@30 fps+VGA@30 fps + JPEG snapshot
  1080p@1 fps
   Supports constant bit rate (CBR) mode and variable bit
  rate (VBR) mode.
   Supports the output bit rate ranging from 32 Kbit/s to 40
  Mbit/s.
   Encoding frame rate, ranging from 1/16 frame/s to 30
  frame/s
   Eight ROIs
   OSD overlay of eight regions before encoding

  I am not sure what command line to issue in order to properly encode and send my stream to my you tube event. So far I have tried :

  avconv  -i rtsp://192.168.1.10:554 -r 20 -b 750 -f flv rtmp://a.rtmp.youtube.com/live2

  (note that I haven’t used the stream name provided by youtube since I do not know where to specify it) this returns the following :

  [h264 @ 0x1fb0380] RTP : missed 273 packets
  [h264 @ 0x1fb0380] RTP : missed 191 packets
  [h264 @ 0x1fb0380] RTP : missed 225 packets
  [h264 @ 0x1fb0380] RTP : missed 332 packets
  [h264 @ 0x1fb0380] RTP : missed 349 packets
  [h264 @ 0x1fb0380] RTP : missed 339 packets
  [rtsp @ 0x1fac640] max_analyze_duration reached
  [rtsp @ 0x1fac640] Estimating duration from bitrate, this may be inaccurate
  Guessed Channel Layout for Input Stream #0.1 : mono
  Input #0, rtsp, from ’rtsp ://192.168.1.10:554’ :
  Metadata :
  title :
  comment : minisdp
  Duration : N/A, start : 0.040000, bitrate : N/A
  Stream #0.0 : Video : h264 (Main), yuv420p, 1920x1080, 2.23 fps, 90k tbn
  Stream #0.1 : Audio : [0][0][0][0] / 0x0000, 8000 Hz, mono
  RTMP_ReadPacket, failed to read RTMP packet header
  rtmp ://a.rtmp.youtube.com/live2 : Unknown error occurred

  I have also tried

   avconv -f h264  -i rtsp://192.168.1.10:554 -r 20 -b 750 -f flv rtmp://a.rtmp.youtube.com/live2

  which gives : rtsp ://192.168.1.10:554 : Protocol not found

  and

  avconv -rtsp_transport tcp   -i rtsp://192.168.1.10:554 -r 20 -b 750 -f flv rtmp://a.rtmp.youtube.com/live2p

  which gives :
  [rtsp @ 0xf8680] max_analyze_duration reached
  [rtsp @ 0xf8680] Estimating duration from bitrate, this may be inaccurate
  Guessed Channel Layout for Input Stream #0.1 : mono
  Input #0, rtsp, from ’rtsp ://192.168.1.10:554’ :
  Metadata :
  title :
  comment : minisdp
  Duration : N/A, start : 0.040000, bitrate : N/A
  Stream #0.0 : Video : h264 (Main), yuv420p, 1920x1080, 25 fps, 1k tbr, 90k tbn
  Stream #0.1 : Audio : [0][0][0][0] / 0x0000, 8000 Hz, mono
  RTMP_ReadPacket, failed to read RTMP packet header
  rtmp ://a.rtmp.youtube.com/live2p : Unknown error occurred

  Any hint, suggestions ?
  I know very little about, video formats, codecs and streaming in general so any help is welcome. I would not mind using ffmpeg instead if anyone knows what command to issue.

• configure.ac : Pass -fno-inline-small-functions when using GCC 4.7

  8 juin 2015, par Mario Sanchez Prada

  configure.ac : Pass -fno-inline-small-functions when using GCC 4.7
  For some reason, the build fails when using GCC 4.7 due to the implicit
  
   finline-functions option passed to the compiler when -O3 is enabled,
  
  which does not happen in newer versions of GCC, probably due to some of
  
  the "General Optimizer Improvements" included in 4.8 (see [1]).
  Fortunately, we don’t need to disable -finline-functions completely but
  
  just do it for "small functions", which is what this patch does.
  [1] https://gcc.gnu.org/gcc-4.8/changes.html
  Closes : https://sourceforge.net/p/flac/bugs/429/
  
  Signed-off-by : Erik de Castro Lopo <erikd@mega-nerd.com>
  

  • [DH] configure.ac