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• ffmpeg ffplay udp streaming quality and error [closed]

  1er janvier 2023, par SangEun Shin

  I am receiving udp streaming through ffmpeg ffplay, but there is a problem that the video is broken.
I'm using a Gopro Hero 11 camera, but I can't receive more than three camera streams because the streaming is fixed with the udp 8554 port.

  


  So using Raspberry pie 4 and nginx reverse proxy for each camera, multi camera streaming succesfully received on another raspberry pie.

  


  In conclusion, gopro camera udp streaming -> raspberrypi received. use nginx reverse proxy -> another raspberry pi received.

  


  However, there is an issue that streaming video quality is broken.
  
I used ffplay :
ffplay udp://@:23002

  


  and the following error also appears :

  


  [h264 @ 0x91cb4ed0] reference picture missing during reorderf=0/0   
[h264 @ 0x91cb4ed0] Missing reference picture, default is 65559
[h264 @ 0x91d234d0] reference picture missing during reorder
[h264 @ 0x91d234d0] Missing reference picture, default is 65559
[h264 @ 0x93028ba0] reference picture missing during reorderf=0/0   
[h264 @ 0x93028ba0] Missing reference picture, default is 65560
[h264 @ 0x9302d6d0] mmco: unref short failure 0KB sq=    0B f=0/0   
[h264 @ 0x9302d6d0] number of reference frames (0+3) exceeds max (2; probably corrupt input), discarding one
[mpegts @ 0x93000630] Packet corrupt (stream = 0, dts = 73156083)
[mpegts @ 0x93000630] Packet corrupt (stream = 0, dts = 73159086)
[mpegts @ 0x93000630] Packet corrupt (stream = 0, dts = 73165092)
[h264 @ 0x9302d6d0] reference picture missing during reorderf=0/0   
[h264 @ 0x9302d6d0] Missing reference picture, default is 65540
[h264 @ 0x930e08e0] reference picture missing during reorderf=0/0   
[h264 @ 0x930e08e0] Missing reference picture, default is 65541


  


  so i use ffplay option -fflag +discardcorrupt. and
use -vf "setpts=N/60/TB".

  


  conclusion : ffplay udp://@:23002 -fflag +discardcorrupt -vf "setpts=N/60/TB"

  


  img

  


  It's better than before, but is still breaks when the change in streaming video is large.

  


  and The packet corrupt still remains, I don't know how to set the pts value that fits the streaming video.

  


  Or is there an issue that I didn't find ?

  


  I'm looking for a way to match the pts.

  


  But I wonder if this is the right way.

  


  I'd appreciate your help to the lost.

  


• Anomalie #3233 : Le bug #2848 (traduction de rubrique) est réapparu

  19 juillet 2014, par marcimat ☺☮☯♫

  Merci pour les accès.

  Pour le point 1) donc, voici ma conclusion ponctuelle :
  - le sélecteur de rubrique est celui qui permet une recherche et sélection en mode « finder » (sélecteur générique), et non une simple liste déroulante donc.
  - ce sélecteur dispose d’un input hidden name=’id_parent’ value=XX. XX étant la rubrique parente en cours au moment de l’ouverture du formulaire donc.
  - en local, lorsqu’on sélectionne une autre rubrique parente, et qu’on clique ’changer’, l’input hidden est actualisé.
  - sur taizé, l’input hidden ne s’actualise pas.

  MM.

• FFmpeg youtube livestreaming [closed]

  23 janvier 2024, par T1WT

  I'm developing a project for streaming on YouTube. I use Python + ffpeg in the code. I haven’t been able to fix the problem for a month now - after a while (from 6 to 20 hours) buffering begins. In the command I use -c copy. But after this time, I came to the conclusion that most likely the buffering (namely, the stream gradually drops from speed x1 to speed x0.9 and below) is due to the disk. My server has SATA. Moreover, the problem is that the disk reaches 100% active time. And around this time the flow speed begins to drop. Moreover, the total read/write speed is only 20MB/sec. How to fix it ? Thanks for your help, I really can't stand it anymore.

  


  I’ll say right away that the potential of the project is great, now there are only 50 streams on YouTube, but then there may be more than 10,000.

  


  I tried a lot but settled on the SATA drive and