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• How to the stream should be automatically restart after 10 seconds if the stream cut

  2 mars 2023, par Mr_Milky

  I will restart using this script . But sometime for some reason the stream goes cut....

  


  How to the stream should be automatically restart after 10 seconds if the stream cut.

  


  #!/bin/bash
while true;do
grep -c "Non-monotonous DTS in output stream" file.txt >nonmonotonus.txt
grep -c "Timestamps are unset in a packet for stream" file.txt >timestamp.txt
grep -c "PES packet size mismatch" file.txt >pespacket.txt
grep -c "Error while decoding stream" file.txt >errordecoding.txt
grep -c "Circular buffer overrun" file.txt >circularbuffer.txt
grep -c "Header missing" file.txt >header.txt
grep -c "Conversion failed" file.txt >conversion.txt

file=nonmonotonus.txt
file1=timestamp.txt
file2=pespacket.txt
file3=errordecoding.txt
file4=circularbuffer.txt
file5=header.txt
file6=conversion.txt

if (($(<"$file")>=3000)) || (($(<"$file1")>=500)) || (($(<"$file2")>=100)) || (($(<"$file3")>=1000)) || (($(<"$file4")>=500)) || (($(<"$file5")>=6)) || (($(<"$file6")>=1)); then
stream1 restart > restart.txt
sleep 1
fi
done
__________________________________________________________________________

FFmpeg -re -threads 3 -c:s webvtt -i "$INPUT_URL?source=null&overrun_nonfatal=1&fifo_size=1000000" \
  -c:v copy \
  -map 0:0 -map 0:1  \
  -c:a aac -b:a 128k -ar 48000 \
  -threads 4 -f hls -hls_time 2 -hls_wrap 15 \
  "manifest.m3u8" \
null > /dev/null 2>&1 2>file.txt & echo $! > $STREAM_PID_PATH



  


  How to automatically restart the stream.. after cut the .ts file

  


  Thankyou ...

  


• FFMPEG Screen Flashing Green

  18 novembre 2022, par Devin Dixon

  I have this problem where my ffmpeg videos are flicking green. Example of the video is here :
https://www.glitch.fun/streams/31fea7e0-7523-4365-9780-31deee9e472c/watchrecording/efb841c0-4b87-4482-b165-990880a66f63

  


  My ffmpeg command is this :

  


  /usr/bin/ffmpeg -vaapi_device /dev/dri/renderD128 -y -v info -f x11grab -draw_mouse 0 -r 60 -s 1920x1080 -thread_queue_size 14000 -i :0.0+0,0 -f alsa -thread_queue_size 14000 -i plug:bsnoop -acodec aac -strict -2 -ar 44100 -b:a 128k -af aresample=async=1 -c:v h264_vaapi -vf format=nv12|vaapi,hwupload -preset medium -maxrate 14000k -bufsize 14000k -pix_fmt yuv420p -r 60 -crf 25 -g 120 -tune zerolatency -f flv rtmp://ingest.bingewave.com/live/[output_to_livestream] -pix_fmt yuv420p -r 60 -b:v 15000k -maxrate 15000k -bufsize 15000k -c:v h264_vaapi -vf format=nv12|vaapi,hwupload -preset medium -keyint_min 24 -level 3.0 -g 120 -tune zerolatency -f flv rtmp://127.0.0.1:1935/live/[output_to_recording]


  


  The reason why my fps and bitrate is so high and preset is so medium is because Glitch is an open source esports platform, and those kinds of settings are required for streaming of game graphics
The command has two outputs :

  


  

  • rtmp ://[output_to_livestream] goes to a livestream where users watch live

  


  • rtmp ://127.0.0.1:1935/live/[output to recording] goes a goes to a file

  


  


  And the output to the recording is captured by nginx and saved to a file as such :

  


  rtmp {
    server {
        listen 1935;
        chunk_size 4096;

        application live {
            live on;
            #Set this to "record off" if you don't want to save a copy of your broadcasts
            record all;
            # The directory in which the recordings will be stored.
            record_path /var/www/html/recordings;
            record_unique on;
            record_suffix -%d-%b-%y-%T.flv;
            on_record_done http://127.0.0.1:3000/recorded;
            # Turn on HLS
            exec /usr/bin/ffmpeg -vaapi_device /dev/dri/renderD128 -i rtmp://127.0.0.1:1935/live/$name -c:v copy -c:a copy -f flv rtmp://127.0.0.1/show/$name;
        }

        application show {
            live on;
            # Turn on HLS
            hls on;
            hls_path /mnt/hls/;
            hls_fragment 3;
            hls_playlist_length 60;
            # disable consuming the stream from nginx as rtmp
            deny play all;
        }
    }
}


  


  So the part that goes to the live is fine, no green flickering at all. But the part that goes to the recording is one that goes the above issue :

  


  -pix_fmt yuv420p -r 60 -b:v 15000k -maxrate 15000k -bufsize 15000k -c:v h264_vaapi -vf format=nv12|vaapi,hwupload -preset medium -keyint_min 24 -level 3.0 -g 120 -tune zerolatency -f flv rtmp://127.0.0.1:1935/live/[output_to_recording]


  


  I
s there something I need to be changing here ?

  


• Combining png and mp3, why using -loop 1 on image and -shortest tag doesn't cut the output length when audio ends ?

  9 novembre 2022, par Alexander

  I have several image and audio files and I want to combine each of the set to a separate video file where image is stretched to audio file length. For example a lion image should be displayed as long as the lion voice is being played. The output file should end when lion audio ends.

  


  I also try to normalize output clips resolution since image files doesn't have same width/height.

  


  Here is the command I'm currently running. Command is on one line but I made some line breaks here for your convenience.

  


  -loop 1 
-i "C:\Temp\screenshot\clip_1.png"
-i "C:\Temp\audio\clip_1.mp3" 
-shortest 
-filter_complex "[0:v]scale=3000:-2:force_original_aspect_ratio=decrease" 
-c:v h264_nvenc 
-c:a aac 
-b:a 192k 
-y 
C:\Temp\clips\clip_1.mp4


  


  To my understanding the -loop 1 before image input should make it to loop infinite and -shortest should end the video when shortest input (audio in this case) ends. In following example, the audio file is 6 seconds long but the output is always 20 seconds.

  


  Here is the full output of ffmpeg :

  


  ffmpeg version 2022-11-03-git-5ccd4d3060-full_build-www.gyan.dev Copyright (c) 2000-2022 the FFmpeg developers
  built with gcc 12.1.0 (Rev2, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libdav1d --enable-libdavs2 --enabl
e-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --ena
ble-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --e
nable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      57. 40.100 / 57. 40.100
  libavcodec     59. 51.101 / 59. 51.101
  libavformat    59. 34.101 / 59. 34.101
  libavdevice    59.  8.101 / 59.  8.101
  libavfilter     8. 49.101 /  8. 49.101
  libswscale      6.  8.112 /  6.  8.112
  libswresample   4.  9.100 /  4.  9.100
  libpostproc    56.  7.100 / 56.  7.100
Input #0, png_pipe, from 'C:\Temp\screenshot\clip_1.png':
  Duration: N/A, bitrate: N/A
  Stream #0:0: Video: png, rgba(pc), 640x148, 25 fps, 25 tbr, 25 tbn
[mp3 @ 0000016c26784a80] Estimating duration from bitrate, this may be inaccurate
Input #1, mp3, from 'C:\Temp\audio\clip_1.mp3':
  Duration: 00:00:06.10, start: 0.000000, bitrate: 32 kb/s
  Stream #1:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
Stream mapping:
  Stream #0:0 (png) -> scale:default (graph 0)
  scale:default (graph 0) -> Stream #0:0 (h264_nvenc)
  Stream #1:0 -> #0:1 (mp3 (mp3float) -> aac (native))
Press [q] to stop, [?] for help
[aac @ 0000016c267ab180] Too many bits 8192.000000 > 6144 per frame requested, clamping to max
Output #0, mp4, to 'C:\Temp\clips\clip_1.mp4':
  Metadata:
    encoder         : Lavf59.34.101
  Stream #0:0: Video: h264 (Main) (avc1 / 0x31637661), rgba(pc, gbr/unknown/unknown, progressive), 3000x694, q=2-31, 2000 kb/s, 25 fps, 12800 tbn
    Metadata:
      encoder         : Lavc59.51.101 h264_nvenc
    Side data:
      cpb: bitrate max/min/avg: 0/0/2000000 buffer size: 4000000 vbv_delay: N/A
  Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 144 kb/s
    Metadata:
      encoder         : Lavc59.51.101 aac
frame=  504 fps=149 q=11.0 Lsize=     925kB time=00:00:20.00 bitrate= 378.8kbits/s speed=5.91x
video:852kB audio:67kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.645776%
[aac @ 0000016c267ab180] Qavg: 65496.695