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• FFMpeg Split MP4 Clip Without Re-Encode | Out of Sync

  28 février 2018, par sword1st

  I want to split mp4 clip for certain seconds but i don’t want to re-encode cuz my cpu isn’t so good it’s take so much time. When i try this code with encode :

  ffmpeg -i clip.mp4 -ss 00:00:25 -to 00:01:20 cutted.mp4

  it’s working perfectly but i don’t want to re-encode. So i try this code :

  ffmpeg -i clip.mp4 -ss 00:00:25 -to 00:01:20 -c copy cutted.mp4

  it’s playing perfectly in media player with a couple blank seconds at first it’s no problem i can cut these blank seconds when i editing it. But real problem is i can’t edit that clip in premiere pro cuz it’s out of sync. What can i do for fix it ? Any ffmpeg feature for that ? Thanks for all help !

  Here ffmpeg output :

  C:\Users\winuser>ffmpeg -i "D:\clips\clip_4579\clip.mp4" -ss 00:03
  
  :00 -to 00:03:30 -c copy "D:\clips\clip_4579\renderless1.mp4"
  
  ffmpeg version N-90155-g28924f4b48 Copyright (c) 2000-2018 the FFmpeg developers
  
  
  
    built with gcc 7.3.0 (GCC)
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --e
  
  nable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libblur
  
  ay --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-
  
  libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enab
  
  le-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-li
  
  bvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --en
  
  able-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-
  
  libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enabl
  
  e-libspeex --enable-libxvid --enable-libmfx --enable-amf --enable-cuda --enable-
  
  cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth
  
    libavutil      56.  7.101 / 56.  7.101
  
    libavcodec     58. 12.102 / 58. 12.102
  
    libavformat    58.  9.100 / 58.  9.100
  
    libavdevice    58.  2.100 / 58.  2.100
  
    libavfilter     7. 12.100 /  7. 12.100
  
    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 'D:\clips\clip_4579\clip.mp4':
  
    Duration: 00:04:14.78, start: 14149.499000, bitrate: 2287 kb/s
  
    Program 1
  
      Stream #0:0[0x100]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 44100 Hz, ster
  
  eo, fltp, 164 kb/s
  
      Stream #0:1[0x101]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(pro
  
  gressive), 1280x720, 60 tbr, 90k tbn, 2k tbc
  
      Stream #0:2[0x102]: Data: timed_id3 (ID3  / 0x20334449)
  
  Output #0, mp4, to 'D:\clips\clip_4579\renderless1.mp4':
  
    Metadata:
  
      encoder         : Lavf58.9.100
  
      Stream #0:0: Video: h264 (Main) (avc1 / 0x31637661), yuv420p(progressive), 1
  
  280x720, q=2-31, 60 tbr, 90k tbn, 90k tbc
  
      Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 16
  
  4 kb/s
  
  Stream mapping:
  
    Stream #0:1 -> #0:0 (copy)
  
    Stream #0:0 -> #0:1 (copy)
  
  Press [q] to stop, [?] for help
  
  frame=    0 fps=0.0 q=-1.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=
  
  frame=    0 fps=0.0 q=-1.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=
  
  frame=    0 fps=0.0 q=-1.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=
  
  frame=  551 fps=271 q=-1.0 size=    4864kB time=00:00:21.23 bitrate=1876.7kbits/
  
  frame=  814 fps=380 q=-1.0 Lsize=    7381kB time=00:00:29.98 bitrate=2016.4kbits
  
  /s speed=  14x
  
  video:6757kB audio:594kB subtitle:0kB other streams:0kB global headers:0kB muxin
  
  g overhead: 0.400338%

• avformat/mxfdec : use both body_sid and track_number to find the track of a packet

  6 février 2018, par Marton Balint

  avformat/mxfdec : use both body_sid and track_number to find the track of a packet
  In order to do that we have to parse the EssenceContainerData and assign the
  
  proper body_sid and index_sid to the tracks from the corresponding source
  
  packages.
  This fixes packets returned in the wrong stream for some OP1-b files.
  Based on a patch by Alex Mogurenko from https://github.com/da8eat/FFmpeg
  Reference : http://mogurenko.com/2018/01/02/mxf-op1b-ffmpeg-part1/
  Signed-off-by : Marton Balint <cus@passwd.hu>
  

  • [DH] libavformat/mxfdec.c

• Error adding text on video using ffmpeg

  7 mars 2018, par robert tamunoemi

  Am trying to add text on video using ffmpeg. Everything works well if there is no spacing in the words. Here is my code

  $text = "Robert Tamunoemi";
  
  $cmd = 'ffmpeg -i '.$videoPath.'  -vcodec libx264 -f mp4 -vf drawtext="fontfile=fonts/futura-normal.ttf:text="'.$text.'":fontcolor=black@1.0:fontsize=14:x=00: y=40" -preset medium  videos/birds.mp4';
  
  
  
  shell_exec($cmd.' 2> log.txt');

  Here is the output from ffmpeg log

  ffmpeg version N-89674-g57d0c24132 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 7.2.0 (GCC)
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-amf --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
  
    libavutil      56.  7.100 / 56.  7.100
  
    libavcodec     58.  9.100 / 58.  9.100
  
    libavformat    58.  3.100 / 58.  3.100
  
    libavdevice    58.  0.100 / 58.  0.100
  
    libavfilter     7.  8.100 /  7.  8.100
  
    libswscale      5.  0.101 /  5.  0.101
  
    libswresample   3.  0.101 /  3.  0.101
  
    libpostproc    55.  0.100 / 55.  0.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'videos/pest11.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf58.3.100
  
    Duration: 00:00:18.20, start: 0.000000, bitrate: 223 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x584 [SAR 1:1 DAR 160:73], 83 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 132 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Tamunoemi:fontcolor=black@1.0:fontsize=14:x=00: y=40: Protocol not found