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• Merging two mp4 videos using ffmpeg

  12 novembre 2018, par kristian zivkovic

  I want to concatenate two mp4 videos using ffmpeg and i am a newbie in this area. I have tried to concat them using several commands and one of them is like this :

  ffmpeg -i "jingle.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts "out/jingle.ts"
  
  ffmpeg -i "logo_jingle.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts "out/camera_video.ts"
  
  
  
  ffmpeg -i "concat:out/camera_video.ts|out/jingle.ts" -bsf:a aac_adtstoasc -vcodec output.mp4

  The result is that the second video last for a minute and it shows only black screen and it actually lasts 5 seconds. I also noticed that videos have different parameters so i tried to harmonize some of the parameters but with that the second video is showing but without sound and still lasts a minute.
  Here are the video parameters.
  First :

  ffmpeg version 2.8.15-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg          developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609
  
    configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-     suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu  --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl  --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable- decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls  --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --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-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable- libopencv
  
   libavutil      54. 31.100 / 54. 31.100
  
   libavcodec     56. 60.100 / 56. 60.100
  
   libavformat    56. 40.101 / 56. 40.101
  
   libavdevice    56.  4.100 / 56.  4.100
  
   libavfilter     5. 40.101 /  5. 40.101
  
   libavresample   2.  1.  0 /  2.  1.  0
  
   libswscale      3.  1.101 /  3.  1.101
  
   libswresample   1.  2.101 /  1.  2.101
  
   libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'gajba-1.mp4':
  
   Metadata:
  
  major_brand     : isom
  
  minor_version   : 512
  
  compatible_brands: isomiso2avc1mp41
  
  encoder         : Lavf56.40.101
  
    Duration: 00:00:24.32, start: 0.000000, bitrate: 1557 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,   1280x720 [SAR 1:1 DAR 16:9], 1479 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
  
  Metadata:
  
    handler_name    : VideoHandler
  
  Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 16000 Hz, mono, fltp, 87 kb/s (default)
  
  Metadata:
  
    handler_name    : SoundHandler

  Second :

  ffmpeg version 2.8.15-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg  developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609
  
    configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build- suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable- libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --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-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
  
    libavutil      54. 31.100 / 54. 31.100
  
    libavcodec     56. 60.100 / 56. 60.100
  
    libavformat    56. 40.101 / 56. 40.101
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 40.101 /  5. 40.101
  
    libavresample   2.  1.  0 /  2.  1.  0
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.101 /  1.  2.101
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'logo_jingle.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41
  
      creation_time   : 2017-03-02 00:49:10
  
    Duration: 00:00:05.44, start: 0.000000, bitrate: 5689 kb/s
  
      Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv),   1280x720 [SAR 1:1 DAR 16:9], 5475 kb/s, 25 fps, 25 tbr, 50k tbn, 50 tbc (default)
  
  Metadata:
  
    creation_time   : 2017-03-02 00:49:10
  
    handler_name    : Alias Data Handler
  
    encoder         : AVC Coding
  
  Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 189 kb/s (default)
  
  Metadata:
  
    creation_time   : 2017-03-02 00:49:10
  
    handler_name    : Alias Data Handler

  Can you tell me how to harmonize these videos and merge them in this particular example ?
  Thank you !

• ffmpeg : "Referenced QT chapter track not found"

  29 avril 2019, par Ze'ev

  Using ffmpeg to replace audio in a QuickTime with audio from a WAV.

  Anyone know why I’m getting Referenced QT chapter track not found ?

  Command :

  $ ffmpeg \
-i "$video" -t 25 \
-i "$audio" -map 0:v -c:v copy -map 1:a -c:a pcm_s24le -ar 48000 \
-hide_banner "$output"

  Output :

  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7faf62010600] Referenced QT chapter track not found
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mov':
  
    Metadata:
  
      major_brand     : qt
  
      minor_version   : 537199360
  
      compatible_brands: qt
  
      creation_time   : 2018-11-06T09:27:43.000000Z
  
    Duration: 00:00:25.00, start: 0.000000, bitrate: 186987 kb/s
  
      Stream #0:0(eng): Video: prores (apch / 0x68637061), yuv422p10le(bt709, progressive), 1920x1080, 185115 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 25 tbn, 25 tbc (default)
  
      Metadata:
  
        creation_time   : 2018-11-06T09:27:43.000000Z
  
        handler_name    : Apple Alias Data Handler
  
        encoder         : Apple ProRes 422 (HQ)
  
        timecode        : 00:00:00:00
  
      Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s (default)
  
      Metadata:
  
        creation_time   : 2018-11-06T09:27:43.000000Z
  
        handler_name    : Apple Alias Data Handler
  
        timecode        : 00:00:00:00
  
      Stream #0:2(eng): Data: none (tmcd / 0x64636D74), 0 kb/s (default)
  
      Metadata:
  
        creation_time   : 2018-11-06T09:27:43.000000Z
  
        handler_name    : Apple Alias Data Handler
  
        timecode        : 00:00:00:00
  
  Guessed Channel Layout for Input Stream #1.0 : stereo
  
  Input #1, wav, from 'audio.wav':
  
    Metadata:
  
      encoded_by      : Pro Tools
  
      originator_reference: aaOpKJaTN7Nk
  
      date            : 2018-11-08
  
      creation_time   : 13:53:50
  
      time_reference  : 166698000
  
    Duration: 00:00:25.00, bitrate: 2128 kb/s
  
      Stream #1:0: Audio: pcm_s24le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s32 (24 bit), 2116 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #1:0 -> #0:1 (pcm_s24le (native) -> pcm_s24le (native))
  
  Press [q] to stop, [?] for help
  
  Output #0, mov, to 'test19.mov':
  
    Metadata:
  
      major_brand     : qt
  
      minor_version   : 537199360
  
      compatible_brands: qt
  
      encoder         : Lavf58.12.100
  
      Stream #0:0(eng): Video: prores (apch / 0x68637061), yuv422p10le(bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 185115 kb/s, 0.04 fps, 25 tbr, 12800 tbn, 25 tbc (default)
  
      Metadata:
  
        creation_time   : 2018-11-06T09:27:43.000000Z
  
        handler_name    : Apple Alias Data Handler
  
        encoder         : Apple ProRes 422 (HQ)
  
        timecode        : 00:00:00:00
  
      Stream #0:1: Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, stereo, s32 (24 bit), 2304 kb/s
  
      Metadata:
  
        encoder         : Lavc58.18.100 pcm_s24le
  
  frame=  625 fps=277 q=-1.0 Lsize=  566343kB time=00:00:24.96 bitrate=185876.0kbits/s speed=11.1x
  
  video:564928kB audio:1406kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.001496%

  Same error with -map 0:v:0

• ffmbc : QuickTime to XDCAMHD422 MXF

  13 novembre 2018, par Ze'ev

  Trying to create an XDCAMHD422 MXF with video from a QuickTime and audio from a stereo WAV.

  Audio is pcm_s24le, 48000 Hz, 2 channels, s32

  But output is mixed :

  Stream #0.1(und): Audio: pcm_s16le, 48000 Hz, 1 channels, s16, 768 kb/s
  
  Stream #0.2(und): Audio: pcm_s24le, 48000 Hz, 1 channels, s32, 1152 kb/s

  And shows alert : Incompatible sample format 's32' for codec 'pcm_s16le', auto-selecting format 's16'

  (For XDCAM, it’s necessary to split stereo into dual mono.)

  Command :

  ffmbc -i "$v" -i "$a" -tff -timecode 07:00:00:00 \
  
  -map_audio_channel 1:0:0:0:1:0 \
  
  -map_audio_channel 1:0:1:0:2:0 \
  
  -acodec pcm_s24le -ar 48000 -ac 2 \
  
  -target xdcamhd422 -vtag xd5c -y  -t 1 "$o" \
  
  -acodec pcm_s24le -newaudio

  Output :

  FFmbc version 0.7.2
  
  Copyright (c) 2008-2014 Baptiste Coudurier and the FFmpeg developers
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mov':
  
    Metadata:
  
      major_brand: qt
  
      minor_version: 537199360
  
      compatible_brands: qt
  
      timecode: 00:00:00:00
  
    Duration: 00:00:30.00, bitrate: 188317 kb/s
  
      Stream #0.0(eng): Video: prores, yuv422p10le, 1920x1080p, 186502 kb/s, PAR 1:1 DAR 16:9, 25.00 fps
  
      Metadata:
  
        codec_name: Apple ProRes 422 (HQ)
  
      Stream #0.1(eng): Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
  
      Stream #0.2(eng): Data: unknown (tmcd)
  
  Input #1, wav, from 'audio.wav':
  
    Metadata:
  
      encoded_by: Pro Tools
  
      originator_reference: aaOpK7OBThOk
  
      date: 2018-11-08
  
      creation_time: 14:10:50
  
      time_reference: 175680000
  
    Duration: 00:00:30.00, bitrate: 2316 kb/s
  
      Stream #1.0(und): Audio: pcm_s24le, 48000 Hz, 2 channels, s32, 2304 kb/s
  
  [scale @ 0x7ff9f48009a0] w:1920 h:1080 fmt:yuv422p10le -> w:1920 h:1080 fmt:yuv422p flags:0x4 il:0
  
  Incompatible sample format 's32' for codec 'pcm_s16le', auto-selecting format 's16'
  
  Output #0, mxf, to 'mxftest3.mxf':
  
    Metadata:
  
      encoder: FFmbc 0.7
  
      Stream #0.0(und): Video: mpeg2video, yuv422p, 1920x1080i tff [PAR 1:1 DAR 16:9], cbr, 50000 kb/s, 25.00 fps
  
      Stream #0.1(und): Audio: pcm_s16le, 48000 Hz, 1 channels, s16, 768 kb/s
  
      Stream #0.2(und): Audio: pcm_s24le, 48000 Hz, 1 channels, s32, 1152 kb/s
  
  Stream mapping:
  
    Stream #0.0 -> #0.0
  
    Stream #1.0 -> #0.1 [channel: 0 -> 0]
  
    Stream #1.0 -> #0.2 [channel: 1 -> 0]
  
  Press [q] to stop, [?] for help
  
  frame=   25 fps=  8 q=2.0 Lsize=    7586kB time=00:00:01.00 bitrate=62145.0kbits/s
  
  video:7309kB audio:236kB global headers:0kB muxing overhead 0.541060%