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• ffmpeg to Youtube Live stops working. ffmpeg continues to run

  10 février 2020, par Robert Pringle

  I’m streaming a mobotix camera to Youtube Live.

  This works correctly for a period of time. Youtube then reports the stream as "noData".
  ffmpeg continues to run, but no video is being received by Youtube.

  The problem is intermittant.

  Restarting the ffmpeg process makes Youtube start receiving the stream again.

  ffmpeg is being run as a systemd service.

  ffmpeg is run with the following command :

  ffmpeg -nostdin  -f lavfi  -i anullsrc  -rtsp_transport tcp -thread_queue_size 512 -i "rtsp://@192.168.1.1:554/mobotix.h264"   -tune zerolatency  -vcodec libx264  -pix_fmt + -c:v copy  -c:a aac  -strict experimental  -f flv rtmp://a.rtmp.youtube.com/live2/

  Logs only show : ffmpeg[47357]: [48.0K blob data]

  Any ideas on how to solve this ? Or improve the logging.

  Edit :
  Logs from starting ffmpeg :

      Feb 07 17:57:00 localhost.localdomain ffmpeg[49525]: [48.0K blob data]
  
      Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]:       encoder         : Lavc58.54.100 aac
  
      Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]:     Metadata:
  
      Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]:     Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 44100 Hz, stereo, fltp, 128 kb/s
  
      Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]:     Stream #0:0: Video: h264 (Constrained Baseline) ([7][0][0][0] / 0x0007), yuv420p(progressive), 1024x768, q=2-31, 12.50 tbr, 1k tbn, 90k tbc
  
      Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]:     encoder         : Lavf58.29.100
  
      Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]:   Metadata:
  
      Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]: Output #0, flv, to 'rtmp://a.rtmp.youtube.com/live2/':
  
      Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]:   Stream #0:0 -> #0:1 (pcm_u8 (native) -> aac (native))
  
      Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]:   Stream #1:0 -> #0:0 (copy)
  
      Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]: Stream mapping:
  
      Feb 07 17:52:46 localhost.localdomain ffmpeg[49525]:     Stream #1:0: Video: h264 (Constrained Baseline), yuv420p(progressive), 1024x768, 12.50 tbr, 90k tbn, 180k tbc
  
      Feb 07 17:52:46 localhost.localdomain ffmpeg[49525]:   Duration: N/A, start: 136.139322, bitrate: N/A
  
      Feb 07 17:52:46 localhost.localdomain ffmpeg[49525]:     comment         : mobotix.h264
  
      Feb 07 17:52:46 localhost.localdomain ffmpeg[49525]:     title           : Mobotix IP-Camera (H.264, unicast)
  
      Feb 07 17:52:46 localhost.localdomain ffmpeg[49525]:   Metadata:
  
      Feb 07 17:52:46 localhost.localdomain ffmpeg[49525]: Input #1, rtsp, from 'rtsp://@192.168.1.1:554/mobotix.h264':
  
      Feb 07 17:52:44 localhost.localdomain ffmpeg[49525]: [h264 @ 0x559ee7857940] concealing 2400 DC, 2400 AC, 2400 MV errors in P frame
  
      Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:     Stream #0:0: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s
  
      Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   Duration: N/A, start: 0.000000, bitrate: 705 kb/s
  
      Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]: Input #0, lavfi, from 'anullsrc':
  
      Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   libpostproc    55.  5.100 / 55.  5.100
  
      Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   libswresample   3.  5.100 /  3.  5.100
  
      Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   libswscale      5.  5.100 /  5.  5.100
  
      Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   libavresample   4.  0.  0 /  4.  0.  0
  
      Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   libavfilter     7. 57.100 /  7. 57.100
  
      Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   libavdevice    58.  8.100 / 58.  8.100
  
      Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   libavformat    58. 29.100 / 58. 29.100
  
      Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   libavcodec     58. 54.100 / 58. 54.100
  
      Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   libavutil      56. 31.100 / 56. 31.100
  
      Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 >
  
      Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   built with gcc 8 (GCC)
  
      Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]: ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers

  Running the command manually gave me logs and exited, whereas the systemd service keeps running.

      [flv @ 0x560541a8b3c0] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
  
      av_interleaved_write_frame(): Broken pipekB time=03:35:18.84 bitrate=3131.8kbits/s speed=0.999x    
  
          Last message repeated 1 times
  
      [flv @ 0x560541a8b3c0] Failed to update header with correct duration.
  
      [flv @ 0x560541a8b3c0] Failed to update header with correct filesize.
  
      Error writing trailer of rtmp://a.rtmp.youtube.com/live2/: Broken pipe
  
      frame=134427 fps= 10 q=-1.0 Lsize= 4938869kB time=03:35:18.96 bitrate=3131.8kbits/s speed=0.997x    
  
      video:4923745kB audio:3296kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.240068%
  
      [aac @ 0x560541a6d680] Qavg: 65536.000
  
      Conversion failed!

• please critize my YouTube-DL & FFMPEG scripts

  18 février 2020, par QX7337

  my goals are to

  1. download the best video and the best audio that YouTube has

  2. save the video with audio as VP9 & MKV

  3. save the audio as OGG and also as FLAC

  currently i cannot save the audio as OGG, only as FLAC. only after I have FLAC, i run another script to make a copy from the FLAC into OGG

  please help me improve my script so that i can have both FLAC & OGG in one run, automatically

  thank you

  here is my script

  --format "(bestvideo[vcodec^=av01][height>=1080][fps>30]/bestvideo[vcodec=vp9.2][height>=1080][fps>30]/bestvideo[vcodec=vp9][height>=1080][fps>30]/bestvideo[vcodec^=av01][height>=1080]/bestvideo[vcodec=vp9.2][height>=1080]/bestvideo[vcodec=vp9][height>=1080]/bestvideo[height>=1080]/bestvideo[vcodec^=av01][height>=720][fps>30]/bestvideo[vcodec=vp9.2][height>=720][fps>30]/bestvideo[vcodec=vp9][height>=720][fps>30]/bestvideo[vcodec^=av01][height>=720]/bestvideo[vcodec=vp9.2][height>=720]/bestvideo[vcodec=vp9][height>=720]/bestvideo[height>=720]/bestvideo)+(bestaudio[acodec=opus]/bestaudio)/best" --keep-video
  
  --prefer-ffmpeg
  
  --merge-output-format mkv
  
  --extract-audio --audio-format flac

• Example of streaming YouTube audio using FFMPEG

  15 avril 2020, par Dupe

  I would like to use FFMPEG to stream YouTube audio to another source

  



  using (var ffmpeg = CreateProcess(track.GetUrl()))
using (var stream = client.CreatePCMStream())
{
    try { await ffmpeg.StandardOutput.BaseStream.CopyToAsync(stream); }
    finally { await stream.FlushAsync(); }
}


  



  Where CreateProcess() looks like this :

  



  private Process CreateProcess(string url)
{
    return Process.Start(new ProcessStartInfo
    {
        FileName = "ffmpeg.exe",
        Arguments = $"-hide_banner -loglevel panic -i \"{url}\" -ac 2 -f s16le -ar 48000 pipe:1",
        UseShellExecute = false,
        RedirectStandardOutput = true
    });
}


  



  

  • url represents the YouTube video URL.

  


  • client represents a Discord audio client, to which I want to copy the stream to.

  


  • I am using Discord.Net (latest stable).

  


  



  The arguments do not seem to be correct as there is no playback and no such exception is returned.