Recherche avancée

Sur d’autres sites (8277)

• cant convert webm to gif with node.js

  5 février 2015, par asafg

  I want to convert a .webm file to .gif

  I’m using the gifify module.

  var fs = require('fs');
  
  var gifify = require('gifify');
  
  var path = require('path');
  
  
  
  var input = path.join('./inputs', 'mov.webm');
  
  var output = path.join('./outputs', 'mov.gif');
  
  
  
  var gif = fs.createWriteStream(output);
  
  
  
  var options = {
  
    resize: '200:-1',
  
    from: 30,
  
    to: 35
  
  };
  
  
  
  gifify(input, options).pipe(gif);

  I keep getting this error

  events.js:53
  
  EventEmitter.prototype.emit = function emit(type) {
  
                                             ^
  
  RangeError: Maximum call stack size exceeded

  I think it has to do with the ffmpeg module dependency because when im trying to convert via shell I also get an error

  $ gifify inputs/mov.webm -o outputs/mov.gif --resize 800:-1
  
  [Error: Could not find ffmpeg on your system]

  Which is odd because i installed ffmpeg and I can require it.

  Does anyone know of to make gifify work ?
  Thank you !

• Call an external dynamic library using node

  25 septembre 2018, par Merc

  I need to edit clips using node using one of the existing video manipulation libraries. (Note : I am aware that I could run an existing editing executable like FFMPEG, but that’s not what I am after).

  Question : What’s the best way to call native libraries in Node ?

  Background information : I will need to talk to one one these libraries : Gstreamer, FFmpeg/LibAV or libVLC.

  My ideal outcome is to have a nice, robust library that I use directly using node, but my lack of experience in terms of using native libraries, and the somehow fragmented world of video editing libraries.

• building ffmpeg with openh264 configure results in h264 decoder DISabled ?

  7 juillet 2018, par hal497

  I’ve got openh264, built from source, installed locally,

  pkg-config --libs --cflags openh264
  
          -I/usr/local/include -L/usr/local/lib64 -lopenh264

  Building ffmpeg from src

  cd ffmpeg-git
  
      git checkout origin/release/4.0
  
      git clean -xfd
  
      git reset --hard
  
      git pull
  
      git log | head
  
          commit b5106c5aa2ddd00f0c0452432ba8e683a9a06b6f
  
          Author: Aman Gupta <aman@tmm1.net>
  
          Date:   Mon Jun 11 00:43:31 2018 -0700
  
  
  
              avformat/mpegts: parse large PMTs with multiple tables
  
  
  
              In 9152c1e4955, the mpegts parser was taught how to parse
  
              PMT sections which contained multiple tables. That commit
  
              fixed parsing of PMT packets from some cable providers,
  
              which included a special SCTE table (0xc0) before the

  with a simple config to ENABLE libopenh264 use

  ./configure --enable-ffmpeg \
  
  --prefix=/usr/local --libdir=/usr/local/lib64 \
  
  --enable-shared --disable-static --enable-rpath \
  
  --enable-libopenh264 --disable-libx264
  
  make

  checking the build

  ldd ./ffmpeg | egrep "h264|x264"
  
      (empty)

  there are mixed references to libopenh264 and libx264 (despite my config),

  for l in lib*/*so; do echo $l; ldd $l | egrep "264"; done
  
      libavcodec/libavcodec.so
  
              libopenh264.so.4 => /usr/local/lib64/libopenh264.so.4 (0x00007f82dd74d000)
  
      libavdevice/libavdevice.so
  
              libx264.so.152 => /usr/lib64/libx264.so.152 (0x00007f0575c6f000)
  
      libavfilter/libavfilter.so
  
              libx264.so.152 => /usr/lib64/libx264.so.152 (0x00007f85bae41000)
  
      libavformat/libavformat.so
  
              libx264.so.152 => /usr/lib64/libx264.so.152 (0x00007ff105701000)
  
      libavutil/libavutil.so
  
      libswresample/libswresample.so
  
      libswscale/libswscale.so

  and

  ./ffmpeg -decoders | grep h264

  shows h264 as a disabled decoder, (... —enable-libx264 —disable-libopenh264 ...)

  ffmpeg version n4.0.1-5-gb5106c5aa2 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 8 (SUSE Linux)
  
    configuration: --enable-ffmpeg --prefix=/usr/local --libdir=/usr/local/lib64 --enable-shared --disable-static --enable-optimizations --enable-rpath --disable-doc --enable-nonfree --enable-libopenh264 --disable-libx264
  
    WARNING: library configuration mismatch
  
    avutil      configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --extra-cflags='-grecord-gcc-switches -g -fPIC -I/usr/include/gsm' --disable-static --enable-shared --disable-stripping --enable-optimizations --disable-debug --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-devices --disable-htmlpages --disable-doc --enable-gpl --enable-nonfree --enable-version3 --enable-libx264 --disable-libopenh264 --enable-libfdk-aac --enable-libmp3lame --enable-runtime-cpudetect --enable-postproc --enable-bzlib --enable-swresample --disable-avresample --enable-ladspa --enable-muxers --enable-demuxers --enable-encoders --disable-encoder= --enable-decoders --disable-decoder= --enable-protocol=http --disable-libpulse --enable-pthreads --enable-pic --enable-zlib --disable-mipsdsp --disable-mipsdspr2 --disable-openssl --enable-gnutls --disable-cuda --enable-vaapi --enable-vdpau --enable-libcdio --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-inline-asm --enable-x86asm
  
    avcodec     configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --extra-cflags='-grecord-gcc-switches -g -fPIC -I/usr/include/gsm' --disable-static --enable-shared --disable-stripping --enable-optimizations --disable-debug --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-devices --disable-htmlpages --disable-doc --enable-gpl --enable-nonfree --enable-version3 --enable-libx264 --disable-libopenh264 --enable-libfdk-aac --enable-libmp3lame --enable-runtime-cpudetect --enable-postproc --enable-bzlib --enable-swresample --disable-avresample --enable-ladspa --enable-muxers --enable-demuxers --enable-encoders --disable-encoder= --enable-decoders --disable-decoder= --enable-protocol=http --disable-libpulse --enable-pthreads --enable-pic --enable-zlib --disable-mipsdsp --disable-mipsdspr2 --disable-openssl --enable-gnutls --disable-cuda --enable-vaapi --enable-vdpau --enable-libcdio --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-inline-asm --enable-x86asm
  
    avformat    configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --extra-cflags='-grecord-gcc-switches -g -fPIC -I/usr/include/gsm' --disable-static --enable-shared --disable-stripping --enable-optimizations --disable-debug --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-devices --disable-htmlpages --disable-doc --enable-gpl --enable-nonfree --enable-version3 --enable-libx264 --disable-libopenh264 --enable-libfdk-aac --enable-libmp3lame --enable-runtime-cpudetect --enable-postproc --enable-bzlib --enable-swresample --disable-avresample --enable-ladspa --enable-muxers --enable-demuxers --enable-encoders --disable-encoder= --enable-decoders --disable-decoder= --enable-protocol=http --disable-libpulse --enable-pthreads --enable-pic --enable-zlib --disable-mipsdsp --disable-mipsdspr2 --disable-openssl --enable-gnutls --disable-cuda --enable-vaapi --enable-vdpau --enable-libcdio --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-inline-asm --enable-x86asm
  
    avdevice    configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --extra-cflags='-grecord-gcc-switches -g -fPIC -I/usr/include/gsm' --disable-static --enable-shared --disable-stripping --enable-optimizations --disable-debug --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-devices --disable-htmlpages --disable-doc --enable-gpl --enable-nonfree --enable-version3 --enable-libx264 --disable-libopenh264 --enable-libfdk-aac --enable-libmp3lame --enable-runtime-cpudetect --enable-postproc --enable-bzlib --enable-swresample --disable-avresample --enable-ladspa --enable-muxers --enable-demuxers --enable-encoders --disable-encoder= --enable-decoders --disable-decoder= --enable-protocol=http --disable-libpulse --enable-pthreads --enable-pic --enable-zlib --disable-mipsdsp --disable-mipsdspr2 --disable-openssl --enable-gnutls --disable-cuda --enable-vaapi --enable-vdpau --enable-libcdio --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-inline-asm --enable-x86asm
  
    avfilter    configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --extra-cflags='-grecord-gcc-switches -g -fPIC -I/usr/include/gsm' --disable-static --enable-shared --disable-stripping --enable-optimizations --disable-debug --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-devices --disable-htmlpages --disable-doc --enable-gpl --enable-nonfree --enable-version3 --enable-libx264 --disable-libopenh264 --enable-libfdk-aac --enable-libmp3lame --enable-runtime-cpudetect --enable-postproc --enable-bzlib --enable-swresample --disable-avresample --enable-ladspa --enable-muxers --enable-demuxers --enable-encoders --disable-encoder= --enable-decoders --disable-decoder= --enable-protocol=http --disable-libpulse --enable-pthreads --enable-pic --enable-zlib --disable-mipsdsp --disable-mipsdspr2 --disable-openssl --enable-gnutls --disable-cuda --enable-vaapi --enable-vdpau --enable-libcdio --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-inline-asm --enable-x86asm
  
    swscale     configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --extra-cflags='-grecord-gcc-switches -g -fPIC -I/usr/include/gsm' --disable-static --enable-shared --disable-stripping --enable-optimizations --disable-debug --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-devices --disable-htmlpages --disable-doc --enable-gpl --enable-nonfree --enable-version3 --enable-libx264 --disable-libopenh264 --enable-libfdk-aac --enable-libmp3lame --enable-runtime-cpudetect --enable-postproc --enable-bzlib --enable-swresample --disable-avresample --enable-ladspa --enable-muxers --enable-demuxers --enable-encoders --disable-encoder= --enable-decoders --disable-decoder= --enable-protocol=http --disable-libpulse --enable-pthreads --enable-pic --enable-zlib --disable-mipsdsp --disable-mipsdspr2 --disable-openssl --enable-gnutls --disable-cuda --enable-vaapi --enable-vdpau --enable-libcdio --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-inline-asm --enable-x86asm
  
    swresample  configuration: --prefix=/usr/local --libdir=/usr/local/lib64 --extra-cflags='-grecord-gcc-switches -g -fPIC -I/usr/include/gsm' --disable-static --enable-shared --disable-stripping --enable-optimizations --disable-debug --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-devices --disable-htmlpages --disable-doc --enable-gpl --enable-nonfree --enable-version3 --enable-libx264 --disable-libopenh264 --enable-libfdk-aac --enable-libmp3lame --enable-runtime-cpudetect --enable-postproc --enable-bzlib --enable-swresample --disable-avresample --enable-ladspa --enable-muxers --enable-demuxers --enable-encoders --disable-encoder= --enable-decoders --disable-decoder= --enable-protocol=http --disable-libpulse --enable-pthreads --enable-pic --enable-zlib --disable-mipsdsp --disable-mipsdspr2 --disable-openssl --enable-gnutls --disable-cuda --enable-vaapi --enable-vdpau --enable-libcdio --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-inline-asm --enable-x86asm
  
    libavutil      56. 14.100 / 56. 14.100
  
    libavcodec     58. 18.100 / 58. 18.100
  
    libavformat    58. 12.100 / 58. 12.100
  
    libavdevice    58.  3.100 / 58.  3.100
  
    libavfilter     7. 16.100 /  7. 16.100
  
    libswscale      5.  1.100 /  5.  1.100
  
    libswresample   3.  1.100 /  3.  1.100
  
   VFS..D h264                 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
  
   V..... h264_v4l2m2m         V4L2 mem2mem H.264 decoder wrapper (codec h264)

  The question is — why ? And what needs to change so that libopenh264 is consistently & correctly used ?