Sur d’autres sites (9139)

• How to bundle a precompiled binary into an electron app

  1er mai 2023, par Aiotex

  I'm developing an Electron app that uses discord/opus which requires ffmpeg to work. I've downloaded a precompiled binary of FFmpeg for my operating system windoes and I want to bundle it with my Electron app.

  


  I've already tried using npm packages like ffmpeg-static and also tried many solutations such as this one : https://github.com/ganeshrvel/tutorial-electron-bundle-binaries, but I can't get the package to use the binaries I download and instead I just get this error : "Uncaught Error : FFmpeg/avconv not found !"

  


  I'm not sure how to bundle the precompiled binary with my Electron app. Do I need to use any specific build tools or can I simply copy the binary into the app's bin folder ? How do I access the FFmpeg binary from my Electron app ?

  


  Can someone provide step-by-step instructions or point me to a tutorial that explains how to bundle a precompiled binary of FFmpeg into an Electron app ?

  


• FFmpeg "no frame !" encoding error

  9 juillet 2015, par oleg.semen

  I’m trying to compress video by scaling it. Here is how
  But I’m getting this error :

  D/FFMpeg﹕ progress[h264 @ 0x42124970] no frame!
  
  D/FFMpeg﹕ progress[aac @ 0x42122fe0] Input buffer exhausted before END element found

  here is whole log :

   Loading FFmpeg for armv7-neon CPU
  
   start
  
   Running publishing updates method
  
   progressWARNING: linker: /data/data/com.example.ffmpeg/files/ffmpeg has text relocations. This is wasting memory and is a security risk. Please fix.
  
   progressffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
  
   progress  built on Oct  7 2014 15:08:46 with gcc 4.8 (GCC)
  
   progress  configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
  
   progress  libavutil      54.  7.100 / 54.  7.100
  
   progress  libavcodec     56.  1.100 / 56.  1.100
  
   progress  libavformat    56.  4.101 / 56.  4.101
  
   progress  libavdevice    56.  0.100 / 56.  0.100
  
   progress  libavfilter     5.  1.100 /  5.  1.100
  
   progress  libswscale      3.  0.100 /  3.  0.100
  
   progress  libswresample   1.  1.100 /  1.  1.100
  
   progress  libpostproc    53.  0.100 / 53.  0.100
  
   progress[h264 @ 0x42124970] no frame!
  
   progress[aac @ 0x42122fe0] Input buffer exhausted before END element found
  
   progressInput #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Movies/Instagram/VID_37551017_035953.mp4':
  
   progress  Metadata:
  
   progress    major_brand     : isom
  
   progress    minor_version   : 0
  
   progress    compatible_brands: isom3gp4
  
   progress    creation_time   : 2015-06-19 09:03:19
  
   progress  Duration: 00:00:03.20, start: 0.000000, bitrate: 2975 kb/s
  
   progress    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x640, 2911 kb/s, 15.22 fps, 14.92 tbr, 90k tbn, 180k tbc (default)
  
   progress    Metadata:
  
   progress      creation_time   : 2015-06-19 09:03:19
  
   progress      handler_name    : VideoHandle
  
   progress    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 101 kb/s (default)
  
   progress    Metadata:
  
   progress      creation_time   : 2015-06-19 09:03:19
  
   progress      handler_name    : SoundHandle

  Did I miss something in config ?
  Thanks.

• ffmpeg udp live stream publish to rtmp

  2 juin 2016, par Pilskalns

  I need to make this chain :
  JVC HM650—UDP—>localhost—>ffmpeg(copy stream)—>nginx-rtmp

  On input I have UDP stream from camera (udp ://@:35501) and I need it to publish to rtmp server (nginx with rtmp module). Apart everything works - I can play input on VLC, I can stream from FMLE to nginx etc. Except, this is my first time with ffmpeg and I can’t get it work. So :

  This is best i have got :

  C:\ffmpeg\bin>ffmpeg -re -i udp://@:35501 -f flv "rtmp://192.168.1.17/live/live" -loglevel debug
  
  ffmpeg version N-69972-g6c91afe Copyright (c) 2000-2015 the FFmpeg developers
  
    built with gcc 4.9.2 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnu
  
  tls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-
  
  libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-l
  
  ibrtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --
  
  enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --ena
  
  ble-libxvid --enable-lzma --enable-decklink --enable-zlib
  
    libavutil      54. 19.100 / 54. 19.100
  
    libavcodec     56. 25.100 / 56. 25.100
  
    libavformat    56. 23.100 / 56. 23.100
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 11.100 /  5. 11.100
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Splitting the commandline.
  
  Reading option '-re' ... matched as option 're' (read input at native frame rate) with argument '1'.
  
  Reading option '-i' ... matched as input file with argument 'udp://@:35501'.
  
  Reading option '-f' ... matched as option 'f' (force format) with argument 'flv'.
  
  Reading option 'rtmp://192.168.1.17/live/live' ... matched as output file.
  
  Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'.
  
  Finished splitting the commandline.
  
  Parsing a group of options: global .
  
  Applying option loglevel (set logging level) with argument debug.
  
  Successfully parsed a group of options.
  
  Parsing a group of options: input file udp://@:35501.
  
  Applying option re (read input at native frame rate) with argument 1.
  
  Successfully parsed a group of options.
  
  Opening an input file: udp://@:35501.
  
  [udp @ 0000000002c30760] end receive buffer size reported is 65536
  
  [AVIOContext @ 0000000002c513c0] Statistics: 0 bytes read, 0 seeks
  
  udp://@:35501: Immediate exit requested
  
  Received signal 2: terminating.
  
  
  
  C:\ffmpeg\bin>

  What is wrong with ffmpeg configuration ?

  SOLUTION :

  The ffmpeg was listening on wrong version of UDP protocol :

  Even IPv6 is disabled on network cards, internally in system, using @ allowed ffmpeg listen at UDPv6.

  By using 127.0.0.1 tells ffmpeg to use clean UDP.

  Thanks, @thomas to make me think differently !