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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 with delayed inputs put an extra audio output at 0 seconds

  19 mars 2023, par Ralph

  Can someone explain why the input files are played 4 times in total, at 0, 1, 2, 3 seconds.

  


  

  1. The ffmpeg processes three input files (mp3).

  


  2. The complex filter delays the inputs by 1, 2, 3 seconds input-wise.

  


  3. amix mixes the delayed outputs together.

  


  4. And finally, a coded transforms it into an output mp3.

  


  


  ffmpeg -i in0.mp3 -i in1.mp3 -i in2.mp3 -filter_complex "[0]adelay=1000[delayed1];[1]adelay=2000[delayed2];[2]adelay=3000[delayed3];[delayed1][delayed2][delayed3]amix=inputs=3:duration=longest" -codec:a libmp3lame -q:a 4 output.mp3


  


  short version : 2 delayed beeps, an finally there come 3 beeps out (@ 0, 1, 2 seconds) :

  


  ffmpeg -i beep.mp3 -filter_complex "[0]adelay=1000[delayed1];[0]adelay=2000[delayed2];[delayed1][delayed2]amix=inputs=2:duration=longest" -codec:a libmp3lame -q:a 4 output.mp3


  


  ffmpeg version N-110011-gf456c192d9-tessus on a Mac M1.

  


  I added also a silent input file from 0 to 1 seconds without any alteration of the outcome.
I added a silent stream as input as well without improvement. E.g. :

  


  ... -filter_complex "aevalsrc=0:d=4[silence];...


  


  Another test with another ffmpeg version 5.1 Copyright (c) 2000-2022 the FFmpeg developers built with Apple clang version 13.1.6 (clang-1316.0.21.2.5) :
ffmpeg -i beep.mp3 -filter_complex "[0]adelay=1000[delayed1];aevalsrc=0:d=5[silence];[silence][delayed1]amix=inputs=2:duration=longest" -codec:a libmp3lame -q:a 4 output.mp3
There are again 2 beeps, at 0 and 1 second - going mad here !

  


  (concat solves the issue. But I want to have a flexible solution with possibly overlapping audio streams.) Thanks for giving a hint !

  


• ffmpeg messes up delayed inputs (repeats at the beginning)

  20 mars 2023, par Ralph

  ffmpeg plays audio inputs delayed to t1, t2 etc at t=0.
If there are several inputs, then it replicates one after the other (after in0 finishes with its duration duration(in0), plays another one at t=duration(in0), etc.)

  


  In the following example, the in0 is played at t=0.

  


  ffmpeg -i in0.mp3 -i in1.mp3 -i in2.mp3 -filter_complex "[0]adelay=1000[delayed1];[1]adelay=2000[delayed2];[2]adelay=3000[delayed3];[delayed1][delayed2][delayed3]amix=inputs=3:duration=longest" -codec:a libmp3lame -q:a 4 output.mp3


  


  The command performs the following : 1. The ffmpeg processes three input files (mp3). 2. The complex filter delays the inputs by 1, 2, 3 seconds input-wise. 3. amix mixes the delayed outputs together. 4. And finally, a coded transforms it into an output mp3.

  


  Another short version : 2 delayed beeps, an finally there come 3 beeps out (@ 0, 1, 2 seconds) :

  


  ffmpeg -i beep.mp3 -filter_complex "[0]adelay=1000[delayed1];[0]adelay=2000[delayed2];[delayed1][delayed2]amix=inputs=2:duration=longest" -codec:a libmp3lame -q:a 4 output.mp3


  


  ffmpeg version N-110011-gf456c192d9-tessus on a Mac M1, downloaded as binary from https://evermeet.cx/ffmpeg (01.2023).

  


  I added also a silent input file from 0 to 1 seconds without any alteration of the outcome.
I added a silent stream as input as well without improvement. E.g. :

  


  ... -filter_complex "aevalsrc=0:d=4[silence];...


  


  Another test with another ffmpeg version 5.1 Copyright (c) 2000-2022 the FFmpeg developers built with Apple clang version 13.1.6 (clang-1316.0.21.2.5) :
ffmpeg -i beep.mp3 -filter_complex "[0]adelay=1000[delayed1];aevalsrc=0:d=5[silence];[silence][delayed1]amix=inputs=2:duration=longest" -codec:a libmp3lame -q:a 4 output.mp3
There are again 2 beeps, at 0 and 1 second.

  


  (comment : concat solves the issue. But I want to have a flexible solution with possibly overlapping audio streams.) Thanks for giving a hint !