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• ffmpeg udp capture not working

  27 février 2017, par user3172852

  I have confirmed that there is incoming UDP packets at port 5968 of my computer with wireshark.
  However when I try to capture these packets with ffmpeg. After exiting (ctrl+c) I get no output, the output file is not even written to disk. This is what my terminal looks like.

  ubuntu@ip-132-31-40-100:~$ ffmpeg -i udp://127.0.0.1:59618 -vcodec copy stream.mp4
  
      ffmpeg version git-2017-01-22-f1214ad Copyright (c) 2000-2017 the FFmpeg developers
  
        built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
  
        configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab --enable-libwavpack --enable-nvenc
  
        libavutil      55. 44.100 / 55. 44.100
  
        libavcodec     57. 75.100 / 57. 75.100
  
        libavformat    57. 63.100 / 57. 63.100
  
        libavdevice    57.  2.100 / 57.  2.100
  
        libavfilter     6. 69.100 /  6. 69.100
  
        libavresample   3.  2.  0 /  3.  2.  0
  
        libswscale      4.  3.101 /  4.  3.101
  
        libswresample   2.  4.100 /  2.  4.100
  
        libpostproc    54.  2.100 / 54.  2.100

• FFMPEG Combine multiple commands into one script

  16 février 2017, par ObeeWnn

  I need some help combining ffmpeg commands into a python or bash script :

  \Download
  
  Youtube-dl URL
  
  
  
  \Concatenate videos
  
  
  
  WD = "C:\"
  
  import glob
  
  files = glob.glob ('*.mp4')
  
  with open ('output.txt', 'w') as in_files:
  
      for eachfile in files: in_files.write('file \''+eachfile+'\'\n')
  
  
  
  ffmpeg -y -f concat -i output.txt -c copy input.mp4
  
  
  
  \Encode
  
  ffmpeg -y -threads 16 -i input.mp4 -c:a libfdk_aac -vbr 4 -c:v libx264 intermediate1.ts
  
  ffmpeg -y -threads 16 -i endscreen720.mp4 -c:a libfdk_aac -vbr 4 -c:v libx264 intermediate2.ts
  
  ffmpeg -y -i "concat:intermediate1.ts|intermediate2.ts" -c copy -bsf:a aac_adtstoasc tmp.mp4
  
  ffmpeg -y -i tmp.mp4 -itsoffset 00:00:20 -i lt1sub.avi -filter_complex overlay tmp1.mp4
  
  ffmpeg -y -i tmp1.mp4 -i intro.avi -filter_complex overlay tmp1a.mp4
  
  ffmpeg -y -i tmp1a.mp4 -i watermarkfile720.png -filter_complex "[0:v]drawtext=enable='between(n,30,116)' : 'fontfile=/Windows/Fonts/arial.ttf':text='TEXTGOESHERE':fontcolor=white:fontsize=50:x=150:y=(300)+th[text]; [text][1:v]overlay[filtered]" -map "[filtered]" -map 0:a -codec:v libx264 -codec:a copy tmp2.mp4
  
  ffmpeg -y -i tmp2.mp4 -r 60 -vf scale=1920:1080 output.mp4
  
  
  
  
  
  \Create Thumbnail
  
  ffmpeg -y -i tmp1.mp4 -vf drawtext="fontfile=/Windows/Fonts/arial.ttf': text='':fontcolor=white@1.0:fontsize=120:y=0:x=100" -ss 00:00:12 -vframes 1 out.png
  
  
  
  set /p input= Video #
  
  
  
  ffmpeg -y -i out.png  -i tnOverlay.png -filter_complex overlay,drawtext="fontfile=/Windows/Fonts/arial.ttf': text="%input%":fontcolor=white@1.0:fontsize=120:y=25:x=1190" out.png

  This is to download videos, place an intro video in the beginning, draw text over intro, concatenate the videos, apply watermark throughout video, apply outro, create thumbnail, etc.
  My FFmpeg compile :

  ffmpeg version N-83522-g6a37abc59a Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 6.3.0 (Rev1, Built by MSYS2 project)
  
    configuration:  --enable-avisynth --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-cuda --enable-cuvid --enable-schannel --enable-sdl2 --enable-decklink --enable-fontconfig --enable-frei0r --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libilbc --enable-libmfx --enable-libmodplug --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libwavpack --enable-libwebp --enable-libxavs --enable-libxvid --enable-libzimg --enable-openssl --enable-libsnappy --enable-gpl --enable-opencl --enable-opengl --enable-libcdio --enable-libfdk-aac --enable-libkvazaar --enable-librubberband --enable-libssh --enable-libtesseract --enable-libzvbi --enable-chromaprint --enable-libopenh264 --enable-libopenmpt --enable-netcdf --disable-w32threads --enable-version3 --enable-nonfree --enable-filter=frei0r --disable-debug
  
    libavutil      55. 47.100 / 55. 47.100
  
    libavcodec     57. 80.100 / 57. 80.100
  
    libavformat    57. 66.102 / 57. 66.102
  
    libavdevice    57.  2.100 / 57.  2.100
  
    libavfilter     6. 73.100 /  6. 73.100
  
    libswscale      4.  3.101 /  4.  3.101
  
    libswresample   2.  4.100 /  2.  4.100
  
    libpostproc    54.  2.100 / 54.  2.100

  Would like to use libfdk-aac and x264, or highest quality possible. The video source will be at 720p60fps and will be rendered to 1080p60fps.

• Correct recording time of the first frame of a video

  27 juillet 2017, par Vítor Cézar

  How do I get the correct time of the first frame recorded on a video ? I executed the command

  ffprobe -v error -show_streams [file_path]

  and got these values of timecode and creation time for the first stream :

  TAG:creation_time=2017-07-26T16:48:10.000000Z
  
  TAG:language=eng
  
  TAG:handler_name=   GoPro AVC
  
  TAG:encoder=GoPro AVC encoder
  
  TAG:timecode=17:21:54:28

  The problem is that the video started being recorded on 16:48:11:504 and neither timecode nor creation time shows this value. If possible I need the precision on milliseconds.