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• ffmpeg "Requested output format 'decklink is not a suitable format'"

  9 février 2018, par user3104363

  I am trying to play a video using ffmpeg and decklink.
  I compiled ffmpeg from ffmpeg repo.
  I am working in ubuntu 16.04 lts.

  Here is my command :

  ./ffmpeg -err_detect ignore_err -threads 0 -re -i ./sample_1080_50i.ts -bufsize 1M -vf yadif -format_code Hi50 -f decklink -preroll 0.7 -pix_fmt uyvy422 'DeckLink Studio 4K'

  The result is :

  ffmpeg version N-89978-gcb97400 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 5.1.1 (Ubuntu 5.1.0-0ubuntu11~10.04.2)
  
    configuration: --prefix=/home/sarslan/ffmpeg_build --pkg-config-flags=--static --extra-cflags='-I/home/sarslan/ffmpeg_build/include -I/home/sarslan/ffmpeg_sources/Blackmagic_DeckLink_SDK_10.9.5/Linux/include' --extra-ldflags=-L/home/sarslan/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/sarslan/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree --enable-static --disable-shared --enable-decklink --enable-ffplay
  
    libavutil      56.  7.100 / 56.  7.100
  
    libavcodec     58. 10.100 / 58. 10.100
  
    libavformat    58.  9.100 / 58.  9.100
  
    libavdevice    58.  1.100 / 58.  1.100
  
    libavfilter     7. 11.101 /  7. 11.101
  
    libswscale      5.  0.101 /  5.  0.101
  
    libswresample   3.  0.101 /  3.  0.101
  
    libpostproc    55.  0.100 / 55.  0.100
  
  Input #0, mpegts, from './sample_1080_50i.ts':
  
    Duration: 00:05:00.08, start: 1.437333, bitrate: 4675 kb/s
  
    Program 1 
  
      Metadata:
  
        service_name    : Service01
  
        service_provider: FFmpeg
  
      Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
  
      Stream #0:1[0x101](eng): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 123 kb/s
  
  [NULL @ 0xb2ed180] Requested output format 'decklink' is not a suitable output format
  
  DeckLink Studio 4K: Invalid argument

  I think, this error is weird.
  I enabled decklink support with —enable-decklink, and I also check ffmpeg documentation decklink part.’decklink’ is used with -f option in every example.

  Then I check the command line, and I can’t find any error with the command.
  Do you have any idea what the problem is ?

  Thanks and best regards,

• Unable to parse graph description substring in passing two word in android ffmpeg command

  16 janvier 2017, par Virani Ashish

  i have create video editing application and i have add text in video but i can add text in android ffmpeg command with space in two word like ’ashish virani’ then error occur.

  VideoEditingActivity: ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
  
                built with gcc 4.8 (GCC)
  
                configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --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/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
  
                libavutil      55. 17.103 / 55. 17.103
  
                libavcodec     57. 24.102 / 57. 24.102
  
                libavformat    57. 25.100 / 57. 25.100
  
                libavdevice    57.  0.101 / 57.  0.101
  
                libavfilter     6. 31.100 /  6. 31.100
  
                libswscale      4.  0.100 /  4.  0.100
  
                libswresample   2.  0.101 /  2.  0.101
  
                libpostproc    54.  0.100 / 54.  0.100
  
              Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/GifMaker/video/Txt_1484571055758.mp4':
  
                Metadata:
  
                  major_brand     : isom
  
                  minor_version   : 512
  
                  compatible_brands: isomiso2avc1mp41
  
                  encoder         : Lavf57.25.100
  
                Duration: 00:00:05.85, start: 0.021333, bitrate: 714 kb/s
  
                  Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 480x200 [SAR 1:1 DAR 12:5], 578 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
  
                  Metadata:
  
                    handler_name    : VideoHandler
  
                  Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 127 kb/s (default)
  
                  Metadata:
  
                    handler_name    : SoundHandler
  
              [AVFilterGraph @ 0xacf304f0] **Unable to parse graph description substring: "ccjcjcjc
  
              v**
  
              gv:x=210:y=20"
  
              Error opening filters!

• FTP Video Upload and Thumbnail Rotation Issue

  25 juin 2018, par Bits Please

  I am uploading video using ffmpeg command. I am then creating then thumbnail. I want to rotate video, how can I achieve this ?

  Here is my Code :

      $thumbnail_name =  preg_replace('"\.(mp4|avi|flv|vob|oggg)$"', '.jpg', $newfilename);
  
  
  
  $movie = "/home/foldername/public_html/master/assets/user_videos/".$newfilename;
  
  
  
  $thumbnail = "/home/foldername/public_html/master/assets/user_videos/".$thumbnail_name;
  
  
  
  $command = '/usr/bin/ffmpeg -y -ss 00:00:01 -i '.$movie.' -f image2 -vframes 1 '.$thumbnail.' 2>&1';