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• FFmpeg with m3u8 playlist : Invalid data found when processing input [closed]

  15 mai 2023, par anthnyprschka

  I get the following error when I try to open a playlist with FFmpeg :

  


  ffmpeg version 2023-03-05-git-912ac82a3c-essentials_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, 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-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
  libavutil      58.  3.100 / 58.  3.100
  libavcodec     60.  6.100 / 60.  6.100
  libavformat    60.  4.100 / 60.  4.100
  libavdevice    60.  2.100 / 60.  2.100
  libavfilter     9.  4.100 /  9.  4.100
  libswscale      7.  2.100 /  7.  2.100
  libswresample   4. 11.100 /  4. 11.100
  libpostproc    57.  2.100 / 57.  2.100
playlist.m3u8: Invalid data found when processing input


  


  Command I use :

  


  ffmpeg [-allowed_extensions ALL] -i playlist.m3u8 -c copy playlist.mp4


  


  Playlist file :

  


  #EXTM3U
#EXTINF:-1,0
https://20230515.s3.eu-central-1.amazonaws.com/output0000f.mp4
#EXTINF:-1,1
https://20230515.s3.eu-central-1.amazonaws.com/output0001f.mp4
#EXTINF:-1,2
https://20230515.s3.eu-central-1.amazonaws.com/output0002f.mp4


  


  The playlist plays fine in VLC player

  


• Facing delay in mic audio while using ffmpeg with h264_nvenc encoder [closed]

  30 avril 2023, par Aniket Bose

  I am trying to capture my windows10 desktop with desktop duplication api and on-gpu D3D11 textures, in the form of ffmpeg D3D11VA frames @60 fps. Required command is given here. On top of that I am trying to also intercept my mic audio. For that I am using this command,

  


  ffmpeg -init_hw_device d3d11va -filter_complex ddagrab=framerate=60 -f dshow -i audio="Microphone (High Definition Audio Device)" -c:v h264_nvenc -rc vbr -cq 24 -qmin 24 -qmax 24 -profile:v main -b:v 0K output.mp4


  


  After the desktop capture process when I am watching output.mp4 I am facing an audio delay. More Precisely my mic audio is coming after 28/29 video frames. ie. (28/60)*1000 = 466 ms delay in audio.

  


  I tried to capture @30fps but no improvement. Now I am getting 14 frames delay ie. (14/30)*1000 = 466 ms delay in audio.

  


  After some research I came to know about keyframe intervals. at default h264_nvenc uses 200 sec keyframe interval. So i tried to lower that with the -g option of h264_nvenc encoder. No improvement here too.

  


  One possible solution could be to delay my video using -itsoffset option. These stack overflow and superuser solutions only work with pre-recorded videos,

  


  ffmpeg delay video in overlay

  


  In ffmpeg, how to delay only the audio of a .mp4 video without converting the audio ?

  


  But I am capturing and encoding on the go (ie. at same time).

  


  I am a novice at video editing and ffmpeg. I am using latest release build from gyan.dev.

  


  ffmpeg version 6.0-full_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, 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 --enable-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 --enable-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 --enable-libspeex 
--enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite 
--enable-libmysofa --enable-librubberband --enable-libsoxr 
--enable-chromaprint
  libavutil      58.  2.100 / 58.  2.100
  libavcodec     60.  3.100 / 60.  3.100
  libavformat    60.  3.100 / 60.  3.100
  libavdevice    60.  1.100 / 60.  1.100
  libavfilter     9.  3.100 /  9.  3.100
  libswscale      7.  1.100 /  7.  1.100
  libswresample   4. 10.100 /  4. 10.100
  libpostproc    57.  1.100 / 57.  1.100
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...


  


• PHP-FFMPEG Waveform is a little noisy, how to fix that ?

  18 avril 2023, par Kranchi

  I made a waveform through sample code :

  


  $waveform = $audio->waveform(2000, 500, array('#FFA500'));
$waveform->save('waveform.png');


  


  But result has some noise in top & bottom of edges :
https://gcdnb.pbrd.co/images/80v6Up6etCrD.png?o=1

  


  So I made a tiny change in line 140 of src\FFMpeg\Media\Waveform.php :

  


  //'showwavespic=colors='.$this->compileColors().':s='.$this->width.'x'.$this->height,
'showwavespic=draw=full:colors='.$this->compileColors().':s='.$this->width.'x'.$this->height,


  


  And problem fixed :
https://gcdnb.pbrd.co/images/KsCFsOujmJ9W.png?o=1

  


  I'm not sure is this a bug or problem in FFMpeg dll file and my question :

  


  is it possible to send the new command or override save method to avoid hacking the original file ? (the save method is using some protected methods)

  


  https://github.com/PHP-FFMpeg/PHP-FFMpeg/blob/master/src/FFMpeg/Media/Waveform.php

  


  Thanks.

  


  ---

  


  PHP-FFMpeg : 23 | FFMpeg : 2023-02-27-git-891ed24f77 (Win X64) |
PHP : 8.2