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• How to convert first few seconds of a video to multiple output formats using ffmpeg

  5 juin 2012, par Hadi

  I want to convert first few seconds (say 5 seconds) of a video to multiple output formats using ffmpeg.

  when I Use this syntax to convert whole video, everything goes ok :
  (to be simple, i left all options to be default)

  ffmpeg -i input.flv output1.mp4 output2.avi

  but when trying for just first 5 seconds using this syntax :

  ffmpeg -t 5 -i input.flv output1.mp4 output2.avi

  first output file (i.e ouptput1.mp4) is ok and it is 5 seconds length, but the second (and next outputs, if present) has a size of original file.

  this is what ffmpeg prints out on the screen.

  D:\ffmpeg\bin>ffmpeg -t 5 -i input.flv output1.mp4 output2.avi
  
  ffmpeg version N-40301-gc1fe2db Copyright (c) 2000-2012 the FFmpeg developers
  
    built on May  3 2012 11:40:38 with gcc 4.6.3
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-ru
  
  ntime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass
  
   --enable-libcelt --enable-libopencore-amrnb --enable-libopencore-amrwb --enable
  
  -libfreetype --enable-libgsm --enable-libmp3lame --enable-libnut --enable-libope
  
  njpeg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libth
  
  eora --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-
  
  libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --e
  
  nable-zlib
  
    libavutil      51. 49.100 / 51. 49.100
  
    libavcodec     54. 17.101 / 54. 17.101
  
    libavformat    54.  3.100 / 54.  3.100
  
    libavdevice    53.  4.100 / 53.  4.100
  
    libavfilter     2. 72.104 /  2. 72.104
  
    libswscale      2.  1.100 /  2.  1.100
  
    libswresample   0. 11.100 /  0. 11.100
  
    libpostproc    52.  0.100 / 52.  0.100
  
  Input #0, flv, from 'input.flv':
  
    Duration: 00:00:37.00, start: 0.000000, bitrate: 366 kb/s
  
      Stream #0:0: Video: flv1, yuv420p, 320x240, 300 kb/s, 29.97 tbr, 1k tbn, 1k
  
  tbc
  
      Stream #0:1: Audio: mp3, 22050 Hz, mono, s16, 56 kb/s
  
  [buffer @ 01de98c0] w:320 h:240 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:fl
  
  ags=2
  
  [buffer @ 01dea4e0] w:320 h:240 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:fl
  
  ags=2
  
  [libx264 @ 02b067a0] using cpu capabilities: MMX2 Cache64
  
  [libx264 @ 02b067a0] profile High, level 1.3
  
  [libx264 @ 02b067a0] 264 - core 120 r2164 da19765 - H.264/MPEG-4 AVC codec - Cop
  
  yleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deb
  
  lock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 m
  
  e_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chro
  
  ma_qp_offset=-2 threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_c
  
  ompat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 we
  
  ightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=
  
  0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4
  
  ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to 'output1.mp4':
  
    Metadata:
  
      encoder         : Lavf54.3.100
  
      Stream #0:0: Video: h264 (![0][0][0] / 0x0021), yuv420p, 320x240, q=-1--1, 3
  
  0k tbn, 29.97 tbc
  
      Stream #0:1: Audio: aac (@[0][0][0] / 0x0040), 22050 Hz, mono, s16, 128 kb/s
  
  
  
  Output #1, avi, to 'output2.avi':
  
    Metadata:
  
      ISFT            : Lavf54.3.100
  
      Stream #1:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 320x240, q=2-31, 200
  
   kb/s, 29.97 tbn, 29.97 tbc
  
      Stream #1:1: Audio: mp3 (U[0][0][0] / 0x0055), 22050 Hz, mono, s16
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (flv -> libx264)
  
    Stream #0:1 -> #0:1 (mp3 -> libvo_aacenc)
  
    Stream #0:0 -> #1:0 (flv -> mpeg4)
  
    Stream #0:1 -> #1:1 (mp3 -> libmp3lame)
  
  Press [q] to stop, [?] for help
  
  frame=   48 fps=0.0 q=29.0 q=2.4 size=       8kB time=00:00:00.16 bitrate= 399.6
  
  frame=   62 fps= 59 q=29.0 q=2.4 size=      32kB time=00:00:00.63 bitrate= 408.8
  
  frame=   73 fps= 46 q=29.0 q=3.5 size=      57kB time=00:00:01.00 bitrate= 466.1
  
  frame=  104 fps= 50 q=29.0 q=3.5 size=      87kB time=00:00:02.03 bitrate= 349.7
  
  frame=  134 fps= 52 q=29.0 q=3.6 size=     113kB time=00:00:03.03 bitrate= 303.9
  
  ***frame=  150 fps= 49 q=29.0 q=2.4 size=     126kB time=00:00:03.57 bitrate= 289.3
  
  frame=  150 fps= 42 q=29.0 q=8.8 size=     126kB time=00:00:03.57 bitrate= 289.3
  
  frame=  150 fps= 37 q=29.0 q=6.9 size=     126kB time=00:00:03.57 bitrate= 289.3
  
  frame=  150 fps= 33 q=29.0 q=9.7 size=     126kB time=00:00:03.57 bitrate= 289.3
  
  frame=  150 fps= 29 q=29.0 q=6.0 size=     126kB time=00:00:03.57 bitrate= 289.3
  
  frame=  150 fps= 27 q=29.0 q=11.2 size=     126kB time=00:00:03.57 bitrate= 289.***
  
  frame=  150 fps= 24 q=29.0 Lq=11.0 size=     171kB time=00:00:04.93 bitrate= 283
  
  .7kbits/s
  
  video:1282kB audio:225kB global headers:0kB muxing overhead -88.650217%
  
  [libx264 @ 02b067a0] frame I:1     Avg QP:10.27  size:    74
  
  [libx264 @ 02b067a0] frame P:114   Avg QP:23.49  size:   727
  
  [libx264 @ 02b067a0] frame B:35    Avg QP:29.30  size:   124
  
  [libx264 @ 02b067a0] consecutive B-frames: 68.0%  2.7%  0.0% 29.3%
  
  [libx264 @ 02b067a0] mb I  I16..4: 100.0%  0.0%  0.0%
  
  [libx264 @ 02b067a0] mb P  I16..4:  2.1%  3.2%  0.1%  P16..4: 19.2%  5.1%  3.6%
  
   0.0%  0.0%    skip:66.6%
  
  [libx264 @ 02b067a0] mb B  I16..4:  0.2%  0.5%  0.0%  B16..8:  9.6%  1.2%  0.4%
  
   direct: 0.6%  skip:87.4%  L0:46.1% L1:42.5% BI:11.4%
  
  [libx264 @ 02b067a0] 8x8 transform intra:51.7% inter:78.4%
  
  [libx264 @ 02b067a0] coded y,uvDC,uvAC intra: 29.8% 44.5% 10.3% inter: 8.9% 10.3
  
  % 2.2%
  
  [libx264 @ 02b067a0] i16 v,h,dc,p: 52% 31% 16%  1%
  
  [libx264 @ 02b067a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 25% 45%  1%  0%  1%  0%
  
   1%  3%
  
  [libx264 @ 02b067a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 17% 48% 23%  2%  1%  2%  3%
  
   2%  1%
  
  [libx264 @ 02b067a0] i8c dc,h,v,p: 54% 26% 16%  3%
  
  [libx264 @ 02b067a0] Weighted P-Frames: Y:2.6% UV:0.9%
  
  [libx264 @ 02b067a0] ref P L0: 79.8%  7.0%  9.6%  3.6%  0.0%
  
  [libx264 @ 02b067a0] ref B L0: 92.5%  6.7%  0.8%
  
  [libx264 @ 02b067a0] ref B L1: 96.8%  3.2%
  
  [libx264 @ 02b067a0] kb/s:139.51
  
  
  
  D:\ffmpeg\bin>

  How is the correct syntax to get all output files same size ?

  isn't this a bug with ffmpeg ? (note last lines of conversion progress, which all timestamps look same)

  thanks in advance.

• Rotate Video- Could not write header for output file #0 (incorrect codec parameters ?)

  26 août 2018, par varmashrivastava

  I am using below command to rotate video-

  {"-y", "-ss", "" + startMs / 1000, "-t", "" + (endMs - startMs) / 1000, "-i", inputPath, "-vf", "transpose=" + type,"-c:a", "copy", outputPath}

  I am getting below failure message in Android Oreo-

  "ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers\n
  built with gcc 4.8 (GCC)\n 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=\n libavutil 55. 17.103 / 55. 17.103\n libavcodec 57. 24.102 / 57. 24.102\n libavformat 57. 25.100 /
  57. 25.100\n libavdevice 57. 0.101 / 57. 0.101\n libavfilter 6. 31.100 / 6. 31.100\n libswscale 4. 0.100 / 4. 0.100\n libswresample 2. 0.101 / 2. 0.101\n libpostproc 54. 0.100 /
  54. 0.100\nInput #0, mov,mp4,m4a,3gp,3g2,mj2, from ’/storage/emulated/0/Download/dolbycanyon.3gp’ :\n Metadata :\n
  major_brand : 3gp4\n minor_version : 512\n
  compatible_brands : isomiso23gp4\n Duration : 00:00:38.07, start :
  0.006250, bitrate : 402 kb/s\n Stream #0:0(und) : Video : h263 (s263 / 0x33363273), yuv420p, 704x576 [SAR 12:11 DAR 4:3], 384 kb/s, 29.97
  fps, 29.97 tbr, 30k tbn, 29.97 tbc (default)\n Metadata :\n
  handler_name : VideoHandler\n Stream #0:1(und) : Audio : amr_nb
  (samr / 0x726D6173), 8000 Hz, mono, flt, 12 kb/s (default)\n
  Metadata :\n handler_name : SoundHandler\n[libx264 @
  0xf64e5400] using SAR=11/12\n[libx264 @ 0xf64e5400] using cpu
  capabilities : none !\n[libx264 @ 0xf64e5400] profile High, level
  3.1\n[libx264 @ 0xf64e5400] 264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options :
  cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1
  psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1
  8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2
  threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1
  interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2
  b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250
  keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf
  mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40
  aq=1:1.00\n[mp4 @ 0xf64a8600] Could not find tag for codec amr_nb in
  stream #1, codec not currently supported in container\nOutput #0, mp4,
  to ’/storage/emulated/0/Movies/rotate_video4.mp4’ :\n Metadata :\n
  major_brand : 3gp4\n minor_version : 512\n
  compatible_brands : isomiso23gp4\n encoder : Lavf57.25.100\n
  Stream #0:0(und) : Video : h264 (libx264) ([33][0][0][0] / 0x0021),
  yuv420p, 576x704 [SAR 11:12 DAR 3:4], q=-1—1, 29.97 fps, 30k tbn,
  29.97 tbc (default)\n Metadata :\n handler_name : VideoHandler\n encoder : Lavc57.24.102 libx264\n Side
  data :\n unknown side data type 10 (24 bytes)\n Stream
  0:1(und) : Audio : amr_nb (samr / 0x726D6173), 8000 Hz, mono, 12 kb/s (default)\n Metadata :\n handler_name : SoundHandler\nStream
  mapping :\n Stream #0:0 -> #0:0 (h263 (native) -> h264 (libx264))\n
  Stream #0:1 -> #0:1 (copy)\nCould not write header for output file #0
  (incorrect codec parameters ?) : Invalid argument\n"

  Why am i getting this error and how can i resolve it ?

• Remove Rotate metadata from mp4

  25 avril, par mbajur

  I'm trying to remove or modify a rotate param from my mp4 file using ffmpeg. Based on some google results, i've ended up with such command (i've tried a few more but none of them worked) :

  



  $ ffmpeg -i ./source.mp4 -metadata rotate=0 ./output.mp4


  



  But it's not working at all. The rotate=270 metadata param is still there in the output file. Can you please advise me on how it should be done ?

  



  I'm using

  



  ffmpeg version 1.2.4 Copyright (c) 2000-2013 the FFmpeg developers
  built on Dec  9 2013 20:00:03 with Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/1.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=cc --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid


  



  ---

  



  Output :

  



  ffmpeg version 1.2.4 Copyright (c) 2000-2013 the FFmpeg developers
  built on Dec  9 2013 20:00:03 with Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/1.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=cc --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid
  libavutil      52. 18.100 / 52. 18.100
  libavcodec     54. 92.100 / 54. 92.100
  libavformat    54. 63.104 / 54. 63.104
  libavdevice    54.  3.103 / 54.  3.103
  libavfilter     3. 42.103 /  3. 42.103
  libswscale      2.  2.100 /  2.  2.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  2.100 / 52.  2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/michal/Downloads/mp4_c8ffe9a587b126f152ed3d89a146b445.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf54.63.104
  Duration: 00:00:13.80, start: 0.021333, bitrate: 437 kb/s
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 313 kb/s, 7.50 fps, 7.50 tbr, 15360 tbn, 15 tbc
    Metadata:
      rotate          : 270
      handler_name    : VideoHandler
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 134 kb/s
    Metadata:
      handler_name    : SoundHandler
File '/Users/michal/Desktop/mp4.mp4' already exists. Overwrite ? [y/N] y 
using SAR=1/1
[libx264 @ 0x7fb17b01ec00] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
[libx264 @ 0x7fb17b01ec00] profile High, level 2.2
[libx264 @ 0x7fb17b01ec00] 264 - core 125 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=7 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to '/Users/michal/Desktop/mp4.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    rotate          : 0
    encoder         : Lavf54.63.104
    Stream #0:0(eng): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 15360 tbn, 7.50 tbc
    Metadata:
      rotate          : 270
      handler_name    : VideoHandler
    Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, s16, 128 kb/s
    Metadata:
      handler_name    : SoundHandler
Stream mapping:
  Stream #0:0 -> #0:0 (h264 -> libx264)
  Stream #0:1 -> #0:1 (aac -> libfaac)
Press [q] to stop, [?] for help
frame=   99 fps= 39 q=32766.0 Lsize=     730kB time=00:00:13.80 bitrate= 433.1kbits/s    
video:497kB audio:226kB subtitle:0 global headers:0kB muxing overhead 0.821272%
[libx264 @ 0x7fb17b01ec00] frame I:8     Avg QP:14.85  size: 11183
[libx264 @ 0x7fb17b01ec00] frame P:68    Avg QP:17.68  size:  5348
[libx264 @ 0x7fb17b01ec00] frame B:23    Avg QP:18.26  size:  2419
[libx264 @ 0x7fb17b01ec00] consecutive B-frames: 53.5% 46.5%  0.0%  0.0%
[libx264 @ 0x7fb17b01ec00] mb I  I16..4: 31.9% 55.9% 12.1%
[libx264 @ 0x7fb17b01ec00] mb P  I16..4:  8.2%  9.1%  0.3%  P16..4: 54.3% 13.0%  7.6%  0.0%  0.0%    skip: 7.4%
[libx264 @ 0x7fb17b01ec00] mb B  I16..4:  0.2%  0.2%  0.0%  B16..8: 49.9%  4.0%  0.3%  direct: 8.6%  skip:36.8%  L0:45.5% L1:50.9% BI: 3.6%
[libx264 @ 0x7fb17b01ec00] 8x8 transform intra:53.3% inter:90.4%
[libx264 @ 0x7fb17b01ec00] coded y,uvDC,uvAC intra: 41.7% 90.1% 55.3% inter: 23.9% 56.7% 7.1%
[libx264 @ 0x7fb17b01ec00] i16 v,h,dc,p: 12% 20% 10% 59%
[libx264 @ 0x7fb17b01ec00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 20% 28%  8%  8%  4%  8%  5%  5%
[libx264 @ 0x7fb17b01ec00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 23% 18%  6% 11%  5%  8%  3%  3%
[libx264 @ 0x7fb17b01ec00] i8c dc,h,v,p: 57% 22% 18%  4%
[libx264 @ 0x7fb17b01ec00] Weighted P-Frames: Y:5.9% UV:0.0%
[libx264 @ 0x7fb17b01ec00] ref P L0: 61.2%  2.2% 23.5% 12.5%  0.6%
[libx264 @ 0x7fb17b01ec00] ref B L0: 74.2% 25.8%
[libx264 @ 0x7fb17b01ec00] kb/s:308.34