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  • FFMPEG doesn't convert from m4v files

    8 février 2014, par MattD

    I am trying to transcode an m4v file from iTunes so I can play it on Windows or XBox. I am running ffmpeg from Windows. Is there some -vcodec I need to specify or something I need to install ? Here's the command I'm running and the error I'm getting.

    Edit : Complete output

    ffmpeg version N-60393-g9707b53 Copyright (c) 2000-2014 the FFmpeg developers
    
  built on Feb  6 2014 22:07:13 with gcc 4.8.2 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
    
  libavutil      52. 63.101 / 52. 63.101
    
  libavcodec     55. 49.101 / 55. 49.101
    
  libavformat    55. 30.100 / 55. 30.100
    
  libavdevice    55.  7.100 / 55.  7.100
    
  libavfilter     4.  1.102 /  4.  1.102
    
  libswscale      2.  5.101 /  2.  5.101
    
  libswresample   0. 17.104 /  0. 17.104
    
  libpostproc    52.  3.100 / 52.  3.100
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 000000000268f620] stream 0, timescale not set
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 000000000268f620] Stream #3: not enough frames to estimate rate; consider increasing probesize
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 000000000268f620] Stream #4: not enough frames to estimate rate; consider increasing probesize
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 000000000268f620] Could not find codec parameters for stream 1 (Video: none (drmi / 0x696D7264), 960x718, 3957 kb/s): unknown codec
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 000000000268f620] Could not find codec parameters for stream 2 (Audio: none (drms / 0x736D7264), 48000 Hz, 5.1(side), 384 kb/s): unknown codec
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 000000000268f620] Could not find codec parameters for stream 3 (Subtitle: none (p608 / 0x38303670), 1280x718, 0 kb/s): unknown codec
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Y:02 The Empty Hearse (HD).m4v':
    
  Metadata:
    
    major_brand     : M4V 
    
    minor_version   : 0
    
    compatible_brands: M4V mp42isom
    
    creation_time   : 2014-01-13 18:51:33
    
    title           : [...]
    
    artist          : [...]
    
    album           : [...]
    
    genre           : Drama
    
    track           : 2/8
    
    disc            : 1/1
    
    date            : 2014-01-19T08:00:00Z
    
    description     : [...]
    
    hd_video        : 1
    
    network         : PBS
    
    show            : Sherlock
    
    episode_id      : 1
    
    season_number   : 3
    
    episode_sort    : 2
    
    media_type      : 10
    
    synopsis        : [...]
    
  Duration: 01:26:28.70, start: 0.000000, bitrate: 4505 kb/s
    
    Stream #0:0(eng): Audio: aac (drms / 0x736D7264), 48000 Hz, stereo, fltp, 156 kb/s (default)
    
    Metadata:
    
      creation_time   : 2014-01-13 18:51:33
    
      handler_name    : Apple Sound Media Handler
    
    Stream #0:1(eng): Video: none (drmi / 0x696D7264), 960x718, 3957 kb/s, SAR 4:3 DAR 640:359, 25 fps, 25 tbr, 2500 tbn, 2500 tbc (default)
    
    Metadata:
    
      creation_time   : 2014-01-13 18:51:33
    
      handler_name    : Apple Video Media Handler
    
    Stream #0:2(eng): Audio: none (drms / 0x736D7264), 48000 Hz, 5.1(side), 384 kb/s
    
    Metadata:
    
      creation_time   : 2014-01-13 18:51:33
    
      handler_name    : Apple Sound Media Handler
    
    Stream #0:3(eng): Subtitle: none (p608 / 0x38303670), 1280x718, 0 kb/s (default)
    
    Metadata:
    
      creation_time   : 2014-01-13 18:51:33
    
      handler_name    : Apple Closed Caption Media Handler
    
    Stream #0:4: Video: mjpeg, yuvj444p(pc), 640x640 [SAR 300:300 DAR 1:1], 90k tbr, 90k tbn, 90k tbc
    
File 'Sherlock.wmv' already exists. Overwrite ? [y/N] [buffer @ 0000000005fc5760] Unable to parse option value "-1" as pixel format
    
    Last message repeated 1 times
    
[buffer @ 0000000005fc5760] Error setting option pix_fmt to value -1.
    
[graph 0 input from stream 0:1 @ 00000000027d7da0] Error applying options to the filter.
    
Error opening filters!

  • FFmpeg - Calculating with Framerate ?

    31 mai 2017, par dazzafact

    I have to cut my video exactly. This video could have 25fps or 30fps (i dont know).
    is there a Variable in ffmpeg for the framerate so i could calculate on which frame i had to Cut ? I only have the seconds of my video.
    something like this (for example 80sec video) :

    vf "fade=in:0:12,fade=out :(80*r):12"

    -vf "fade=in:0:12,fade=out:2500:12"

  • FFMPEG - How to transcode and segment to multiple bitrates ?

    25 juillet 2014, par ipegasus

    I would like to know how to use FFMPEG to transcode video (Prores codec) and segment videos to multiple bitrates. Is it possible to do it in one command ?

    Current working solution with X264 :

    1. Encode Videos Using X264.

      /home/ubuntu/bin/ffmpeg -y -i "$video_path" -threads 1 -f mpegts \
      -acodec libfaac -ab 64k -ar 44100 -vcodec libx264 -vprofile baseline -x264opts "fps=12:keyint=36:bitrate=200" -s 416x234 "$DIR_VIDEO_OUTPUT/$filename"/p1.ts \
      -acodec libfaac -ab 64k -ar 44100 -vcodec libx264 -vprofile baseline -x264opts "fps=12:keyint=36:bitrate=400" -s 480x270 "$DIR_VIDEO_OUTPUT/$filename"/p2.ts \
      -acodec libfaac -ab 64k -ar 44100 -vcodec libx264 -vprofile baseline -x264opts "fps=24:keyint=72:bitrate=600" -s 640x360 "$DIR_VIDEO_OUTPUT/$filename"/p3.ts \
      -acodec libfaac -ab 64k -ar 44100 -vcodec libx264 -vprofile baseline -x264opts "fps=24:keyint=72:bitrate=1200" -s 640x360 "$DIR_VIDEO_OUTPUT/$filename"/p4.ts \
      -acodec libfaac -ab 64k -ar 44100 -vcodec libx264 -vprofile main -x264opts "fps=24:keyint=72:bitrate=1800" -s 960x540 "$DIR_VIDEO_OUTPUT/$filename"/p5.ts \
      -acodec libfaac -ab 64k -ar 44100 -vcodec libx264 -vprofile main -x264opts "fps=24:keyint=72:bitrate=2500" -s 960x540 "$DIR_VIDEO_OUTPUT/$filename"/p6.ts \
      -acodec libfaac -ab 64k -ar 44100 -vcodec libx264 -vprofile main -x264opts "fps=24:keyint=72:bitrate=4500" -s 1280x720 "$DIR_VIDEO_OUTPUT/$filename"/p7.ts

    2. Using an extrenal segmenter

      cd $DIR_VIDEO_OUTPUT/$filename
      mkdir M3U8
      for p in p1 p2 p3 p4 p5 p6 p7 ; do mkdir $DIR_VIDEO_OUTPUT/$filename/M3U8/$p.seg ; (cd M3U8 ; m3u8-segmenter —input $DIR_VIDEO_OUTPUT/$filename/$p.ts —duration 7 —output-prefix $p.seg/$p —m3u8-file $p.m3u8 —url-prefix "") ; done

    3. And finally manualy the individual playlists are joined into one

      echo ’

      EXTM3U

      EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=264000,RESOLUTION=416x234

      p1.m3u8

      EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=464000,RESOLUTION=480x270

      p2.m3u8

      EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=664000,RESOLUTION=640x360

      p3.m3u8

      EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1264000,RESOLUTION=640x360

      p4.m3u8

      EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1864000,RESOLUTION=960x540

      p5.m3u8

      EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=2564000,RESOLUTION=960x540

      p6.m3u8

      EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=4564000,RESOLUTION=1280x720

      p7.m3u8’ >> $filename.m3u8
      cd "$DIR_VIDEO_OUTPUT/$filename"/
      sudo rm *.ts

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