Sur d’autres sites (13996)

• Evolution #4170 : Visibilité icônes des auteurs

  1er septembre 2018, par nico d_

  Ça serait mieux dans un style plus flat oui, plus lisible.
  Mais du coup ça risque de trancher avec le style des autres icônes fatcow.
  (en fait c’est probablement tout le jeu d’icônes qu’il faudrait reprendre, mais bon...)

  En tout cas je serai partisan d’un retour à une icône plus générique, non genrée et neutre.
  Des pistes : https://thenounproject.com/search/?q=user

  Tant qu’on est sur le sujet, un truc qui manque aussi c’est la distinction admin / admin restreint, qui sont représentés par la même icône mais qui n’ont pas du tout les mêmes droits (gestion des plugins, config...)

• choosing outbound IP (eth0 or eth1) in FFMPEG

  4 septembre 2018, par Ba Ta

  I have 2 IP addresses on my server.

  $curl --interface eth0 ifconfig.co      
  
  111.111.111.111
  
  
  
   $curl --interface eth0:0 ifconfig.co      
  
  222.222.222.222

  So via curl I can switch via interfaces so my IP address changes when I visit any url based on eth IP

  How can I use same thing via ffmpeg ?

  For example, if want to access this video via ffmpeg (it uses 111.111.111.111 to access it)

   ffmpeg -i 123.com/video.mp4

  how can I access same video from my second IP 222.222.222.222 ?

  Is there any command like this, perhaps ?

  ffmpeg --interface eth0:0  -i 123.com/video.mp4

• I can’t play HEVC encoded Flv format video files with ffplay

  25 décembre 2023, par 1337zzz

  I could not decode a video file

  


  I have a video file in FLV format. Someone told me that the encoding format of this video is HEVC, so I tried to play this video with ffplay. But I found that native ffplay cannot play HEVC encoded files in flv format, so I found relevant information to decode HEVC encoded files in FLV format, but this file still cannot be played.

  


  The following is the error message, the content is that the NAL part of the analysis failed

  


  [hevc @ 0x7fba4800fc00] Invalid NAL unit size in extradata.
[flv @ 0x7fba4800f000] Could not find codec parameters for stream 0 (Video: hevc, none, 5494 kb/s): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options



  


  I tried to use ffplay to play other HEVC encoded videos in FLV format, and the result was no problem. So I use a hexadecimal editor to view the file that cannot be played normally. Below is the data of the first frame of video.

  


  000003a0: xx xx xx xx xx xx xx 09 00 00 4E 00 00 00 00 00    ..........N.....
000003b0: 00 00 1E 00 00 00 00 01 00 00 00 FF E2 00 17 40    ............b..@
000003c0: 01 0C 01 FF FF 01 00 01 00 00 B0 00 00 03 00 00    ..........0.....
000003d0: 03 00 96 1D 94 09 00 1E 42 01 01 01 00 01 00 00    ........B.......
000003e0: B0 00 00 03 00 00 03 00 96 A0 01 E0 20 02 1C 5A    0..........`...Z
000003f0: 1D 96 49 0A 40 A2 01 00 07 44 01 C0 13 18 21 20    ..I.@"...D.@..!.


  


  We can see that 09 represents the video type, 4E represents the length of TAG data, and 1C represents the key frame of HEVC, but I can’t judge whether the following data is HEVC encoded data, so I suspect that the latter data may not be encoded by HEVC.

  


  Question

  


  Is there any way to detect the encoding format of the video based on the hexadecimal data, or who can tell me which video encoding format the following data is ?

  


  Thank you very much !