Recherche avancée

Sur d’autres sites (11094)

• When assigning an IP via Docker container macvlan and sending video to that container, will the data be limited ?

  11 septembre 2023, par leejh

  I created a macvlan network as shown below.

  


  docker network create -d macvlan \
    --subnet=192.168.1.0/24 \
    --gateway=192.168.1.1 \
    -o parent=eno1 \
    macvlan_network


  


  And the container was created as shown below.

  


  The plan was to create a mistserver inside the container to send and receive video via IP.

  


  docker run -d --name mistserver1 --restart=always -v mistserver_config:/config -v /home/ketivrar/detr2:/home/shared_folder --net=macvlan_network --ip 192.168.1.16 r0gger/mistserver


  


  There is no problem when transmitting video in the directory using the Mist server.

  


  An error occurs when transmitting video using ffmpeg as shown below.

  


  ffmpeg -re -i test7_10.mp4 -c:v libx264 -preset medium -b:v 8000k -f flv rtmp://192.168.1.16/live/cam1


  


  If you run the above command, the following error will occur and it will stop.

  


  av_interleaved_write_frame(): Connection reset by peer58.73 bitrate=8053.7kbits/s dup=0 drop=4 speed=0.948x
[flv @ 0x5582ab9e6e00] Failed to update header with correct duration.
[flv @ 0x5582ab9e6e00] Failed to update header with correct filesize.
Error writing trailer of rtmp://192.168.1.2/live/cam1: Connection reset by peer
frame= 1845 fps= 29 q=33.0 Lsize=   57806kB time=00:00:58.86 bitrate=8044.2kbits/s dup=0 drop=4 speed=0.94x


  


  I wonder what the reason is...

  


  I created two streams on the Mist server and sent video to each stream simultaneously.

  


  ffmpeg -re -i test7_10.mp4 -c:v libx264 -preset medium -b:v 8000k -f flv rtmp://192.168.1.16/live/cam1


  


  ffmpeg -re -i test7_10.mp4 -c:v libx264 -preset medium -b:v 8000k -f flv rtmp://192.168.1.16/live/cam2


  


  av_interleaved_write_frame(): Connection reset by peer29.46 bitrate=8135.7kbits/s dup=0 drop=2 speed=0.343x
[flv @ 0x55975fb05e00] Failed to update header with correct duration.
[flv @ 0x55975fb05e00] Failed to update header with correct filesize.
Error writing trailer of rtmp://192.168.1.16/live/cam1: Connection reset by peer
frame=  971 fps= 11 q=33.0 Lsize=   29395kB time=00:00:29.66 bitrate=8116.6kbits/s dup=0 drop=2 speed=0.34x



####


av_interleaved_write_frame(): Connection reset by peer25.06 bitrate=8313.0kbits/s dup=0 drop=1 speed=0.292x
[flv @ 0x55ce4a7ce340] Failed to update header with correct duration.
[flv @ 0x55ce4a7ce340] Failed to update header with correct filesize.
Error writing trailer of rtmp://192.168.1.16/live/rtsp: Connection reset by peer
frame=  853 fps=9.8 q=33.0 Lsize=   25857kB time=00:00:25.76 bitrate=8220.2kbits/s dup=0 drop=2 speed=0.297x



  


  It seems to stop before the total size of the two reaches 60000.

  


  This time, I sent the video using OBS.

  


  I confirmed that the connection was disconnected and reconnected at a similar time as ffmpeg.

  


  I think there is a size limit somewhere. Could you please tell me a solution or the exact problem ?

  


  +++++

  


  ffmpeg -re -i test7_10.mp4 -c:v libx264 -preset medium -b:v 4000k -f flv rtmp://192.168.1.16/live/cam1


  


  ->

  


  [flv @ 0x56547e6f1e00] Failed to update header with correct duration.019.0kbits/s dup=0 drop=12 speed=0.982x
[flv @ 0x56547e6f1e00] Failed to update header with correct filesize.
frame= 5328 fps= 30 q=-1.0 Lsize=   87550kB time=00:02:57.93 bitrate=4030.8kbits/s dup=0 drop=12 speed=0.996x


  


  success !

  


  ffmpeg -re -i test7_10.mp4 -c:v libx264 -preset medium -b:v 5000k -f flv rtmp://192.168.1.16/live/cam1


  


  ->

  


  av_interleaved_write_frame(): Connection reset by peer30.63 bitrate=5039.7kbits/s dup=0 drop=6 speed=0.965x
[flv @ 0x555ad97f7e00] Failed to update header with correct duration.
[flv @ 0x555ad97f7e00] Failed to update header with correct filesize.
Error writing trailer of rtmp://192.168.1.16/live/cam1: Connection reset by peer
frame= 2802 fps= 30 q=37.0 Lsize=   55876kB time=00:01:30.83 bitrate=5039.3kbits/s dup=0 drop=6 speed=0.962x


  


  fail...

  


  I only adjusted -b:v 5000k, but the results were mixed.

  


  Are there any resource limits for each container ?

  


  I didn't set it up separately.

  


• avutil/avutil : make AV_TIME_BASE_Q available in C++

  18 septembre 2023, par Zhao Zhili

  avutil/avutil : make AV_TIME_BASE_Q available in C++
  ISO C++ forbids compound-literals. It's not available with MSVC.
  
  This is a known issue from 10 years ago, and that's why there is a
  
  av_get_time_base_q().
  Since we have no plan to remove AV_TIME_BASE_Q, just make it
  
  available in C++.
  There are multiple choices :
  
  1. Use C++11 syntax : AVRational1, AV_TIME_BASE
  Users may still use C++98 to write new code. So no.
  2. Use av_get_time_base_q().
  It's for this purpose. But it's not compile time constants as
  
  AV_TIME_BASE_Q in C.
  So I choose av_make_q() as Anton's suggestion.
  https://libav-devel.libav.narkive.com/ZQCWfTun/patch-0-2-fix-avutil-h-usage-from-c
  
  Signed-off-by : Zhao Zhili <zhilizhao@tencent.com>
  

  • [DH] doc/APIchanges
  • [DH] libavutil/avutil.h
  • [DH] libavutil/version.h

• Mute parts of Wave file using Python/FFMPEG/Pydub

  20 avril 2020, par Adil Azeem

  I am new to Python, please bear with me. I have been able to get so far with the help of Google/StackOverflow and youtube :). So I have a long (2 hours) *.wav file. I want to mute certain parts of that file. I have all of those [start], [stop] timestamps in the "Timestamps.txt" file in seconds. Like this :

  



     0001.000 0003.000
   0744.096 0747.096
   0749.003 0750.653
   0750.934 0753.170
   0753.210 0754.990
   0756.075 0759.075
   0760.096 0763.096
   0810.016 0811.016
   0815.849 0816.849


  



  What I have been able to do is read the file and isolate each tuple. I have just output the first tuple and printed it to check if everything looks good. It seems that the isolation of tuple works :) I plan to count the number of tuples (which is 674 in this case) and put in a 'for loop' according to that count and change the start and stop time according to the tuple. Perform the loop on that single *.wav file and output on file with muted sections as the timestamps. I have no idea how to implement my thinking with FFMPEG or any other utility in Python e.g pydub. Please help me.

  



     with open('Timestamps.txt') as f:
   data = [line.split() for line in f.readlines()]
   out = [(float(k), float(v)) for k, v in data]

   r = out[0] 
   x= r[0]
   y= r[1]
   #specific x and y values
   print(x)
   print(y)