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• When using subprocess passthrough is not accepting both inputs

  30 janvier 2021, par Baraque Obahamas

  Im trying to have two subprocesses pipe into one and output via the passthrough. My goal is to make it possible to download 2 files (one video and one audio) and combine them with ffmpeg.

  


  header('Content-Description: File Transfer');
header('Cache-Control: must-revalidate');
header('Pragma: public');
header("Content-Disposition: attachment; filename=\"ok.mp4\"");
header("Content-Type: application/octet-stream");

$cmd = "<(youtube-dl -f bestvideo[ext=mp4] --no-part --no-cache-dir --no-warnings --no-progress -o - https://www.youtube.com/watch?v=6Dh-RL__uN4) <(youtube-dl -f bestaudio[ext=m4a] --no-part --no-cache-dir --no-warnings --no-progress -o - https://www.youtube.com/watch?v=6Dh-RL__uN4) | ffmpeg -i - -i pipe:3 -movflags frag_keyframe+empty_moov+faststart -frag_duration 3600 -c:v copy -c:a copy -f mp4 -";

$cmd = passthru($cmd, $status);


  


  My error is : -bash : /dev/fd/63 : Permission denied

  


• How to make a Magick.NET watermark ? [closed]

  26 janvier 2021, par sibbasa

  Has anyone worked with Magick.NET ? Do I need to transfer this code to C# Magick.NET ? I can't find examples and documentation of Magick.NET. :( Can someone help me ?

  


      logo=../../logo/Moto_Gymkhana_transparent.png
    Frames=15
    width=842
    height=595
    mkdir tmp
    for (( n=0; n<=90; n+=$(expr $(( 90/$Frames )))))
    do
    oWidth=$(printf %.$2f $(echo "$width*(c($n*4*a(1)/180))+1" | bc -l))
    shadowShift=$(printf %.$2f $(echo "15*(s($n*4*a(1)/180))+1" | bc -l))
    convert -size 850x600 xc:transparent -background none \( -alpha set -channel A -evaluate add -50% $logo -geometry $oWidth\ x$height\! \) -gravity center -composite -depth 8 ./tmp/$n.png
    convert tmp/$n.png \( +clone -background '#cccf' -shadow 100x8+$shadowShift-3 \) -background none  -compose Dst_Over -layers merge -gravity center -depth 8 tmp/logo$(expr $(( 1000+n ))).png
    convert tmp/$n.png \( +clone -background '#cccf' -shadow 100x8-$shadowShift-3 \) -background none -compose Src_Over -layers merge -gravity center -flop tmp/logo$(expr $(( 1800-n ))).png
    convert tmp/$n.png \( +clone -background '#cccf' -shadow 100x8+$shadowShift-3 \) -background none  -compose Src_Over -layers merge -gravity center -flop tmp/logo$(expr $(( 2000+n ))).png
    convert tmp/$n.png \( +clone -background '#cccf' -shadow 100x8-$shadowShift-3 \) -background none -compose Dst_Over -layers merge -gravity center tmp/logo$(expr $(( 2800-n ))).png
    done
    ffmpeg -pattern_type glob -i 'tmp/logo*.png' -pix_fmt argb -vcodec qtrle -r 30 rotatingLogo.mov
    ffmpeg -loop 1 -pattern_type glob -i 'tmp/logo1000.png' -pix_fmt argb -vcodec qtrle -r 30 -t 3 stillLogo.mov
    rm list.txt
    for (( i=0; i<20; i+=1 ))
    do
    echo file 'stillLogo.mov' >> list.txt
    echo file 'rotatingLogo.mov' >> list.txt
    done
    ffmpeg -f concat -i list.txt -c copy logoWithRotation.mov


  


• how to add timeout of connection to ffmpeg command when retriving rtsp ?

  1er juillet 2021, par 多线程大脑

  I used the following command to transfer a rtsp stream to a .mp4 file :

  


  ffmpeg -rtsp_transport tcp -timeout 5000000 -i "rtsp://zigong.stream.xl02.cn:557/HongTranSvr?DevId=1b038d27-858c-46a1-b803-a2984af343df&Session=1b038d27-858c-46a1-b803-a2984af343df"  -vcodec copy -t 5 -y "capture.mp4" 


  


  The result is as below :

  


  [rtsp @ 0x5655577ccc00] Unable to open RTSP for listening
rtsp://zigong.stream.xl02.cn:557/HongTranSvr?DevId=1b038d27-858c-46a1-b803-a2984af343df&Session=1b038d27-858c-46a1-b803-a2984af343df: Cannot assign requested address


  


  But it worded fine if I delete the timeout option...
the ffmpeg version is :

  


  ffmpeg version 3.2.12-1~deb9u1 Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
  configuration: --prefix=/usr --extra-version='1~deb9u1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  libavutil      55. 34.101 / 55. 34.101
  libavcodec     57. 64.101 / 57. 64.101
  libavformat    57. 56.101 / 57. 56.101
  libavdevice    57.  1.100 / 57.  1.100
  libavfilter     6. 65.100 /  6. 65.100
  libavresample   3.  1.  0 /  3.  1.  0
  libswscale      4.  2.100 /  4.  2.100
  libswresample   2.  3.100 /  2.  3.100
  libpostproc    54.  1.100 / 54.  1.100