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• Unrecognized option 'c:v' ffmpeg error for converting videos to H264

  16 mai 2015, par user3528346

  I told my server to upgrade to latest version of ffmpeg and they told me they did and I have the latest version that is 2.2.1 .
  I test several codes to convert a video to x264 , here is the one ;

  passthru("$ffmpegpath -i aatest/a.AVI -c:v libx264 -c:a libfaac -preset veryslow -qp 0 aatest/output.mp4 2>&1");

  the result

  FFmpeg version 0.6.5, Copyright (c) 2000-2010 the FFmpeg developers
  built on Jan 29 2012 17:52:15 with gcc 4.4.5 20110214 (Red Hat
  4.4.5-6) configuration : —prefix=/usr —libdir=/usr/lib64 —shlibdir=/usr/lib64 —mandir=/usr/share/man —incdir=/usr/include —disable-avisynth —extra-cflags=’-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector —param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC’ —enable-avfilter —enable-avfilter-lavf —enable-libdc1394 —enable-libdirac —enable-libfaac —enable-libfaad —enable-libfaadbin —enable-libgsm —enable-libmp3lame —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-librtmp —enable-libschroedinger —enable-libspeex —enable-libtheora —enable-libx264 —enable-gpl —enable-nonfree —enable-postproc —enable-pthreads —enable-shared —enable-swscale —enable-vdpau —enable-version3 —enable-x11grab libavutil 50.15. 1 / 50.15. 1 libavcodec 52.72. 2 / 52.72. 2
  libavformat 52.64. 2 / 52.64. 2 libavdevice 52. 2. 0 / 52. 2. 0
  libavfilter 1.19. 0 / 1.19. 0 libswscale 0.11. 0 / 0.11. 0 libpostproc
  51. 2. 0 / 51. 2. 0 [mpeg4 @ 0x1111960]Invalid and inefficient vfw-avi packed B frames detected [mpeg4 @ 0x1111960]frame skip 8 Input #0,
  avi, from ’aatest/a.AVI’ : Duration : 00:02:04.04, start : 0.000000,
  bitrate : 885 kb/s Stream #0.0 : Video : mpeg4, yuv420p, 480x360 [PAR 4:3
  DAR 16:9], 25 tbr, 25 tbn, 25 tbc Stream #0.1 : Audio : mp3, 44100 Hz, 2
  channels, s16, 128 kb/s Unrecognized option ’c:v’

  the last line says "Unrecognized option ’c:v’"

  What should I do ?
  Thanks

• Unknown OS 'msys_nt-6.1'. using Minw on win7 64bit

  31 mai 2015, par user63898

  i try to compile FFmpeg from source using MSYS2 and MIngW im using win7 64 bit .
  using .

  $ ./configure --enable-shared

  im getting this error :

  Unknown OS 'msys_nt-6.1'.
  
  
  
  If you think configure made a mistake, make sure you are using the latest
  
  version from Git.  If the latest version fails, report the problem to the
  
  ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
  
  Include the log file "config.log" produced by configure as this will help
  
  solve the problem.

  looking in to config.log
  i see ( the end of the log ) :

  gcc -std=c99 -Wall -O3 -c -o /tmp/ffconf.fnJeLuIu.o /tmp/ffconf.e8DJYGJM.c
  
  check_code cc  int test[2*(sizeof(void *) > 4) - 1]
  
  check_cc
  
  BEGIN /tmp/ffconf.e8DJYGJM.c
  
      1   int main(void) { int test[2*(sizeof(void *) > 4) - 1]; return 0; }
  
  END /tmp/ffconf.e8DJYGJM.c
  
  gcc -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -std=c99 -c -o /tmp/ffconf.fnJeLuIu.o /tmp/ffconf.e8DJYGJM.c
  
  G:/msys64/tmp/ffconf.e8DJYGJM.c: In function 'main':
  
  G:/msys64/tmp/ffconf.e8DJYGJM.c:1:22: error: size of array 'test' is negative
  
   int main(void) { int test[2*(sizeof(void *) > 4) - 1]; return 0; }
  
                        ^
  
  check_cpp_condition stddef.h defined(__x86_64__)
  
  check_cpp
  
  BEGIN /tmp/ffconf.e8DJYGJM.c
  
      1   #include 
  
      2   #if !(defined(__x86_64__))
  
      3   #error "unsatisfied condition: defined(__x86_64__)"
  
      4   #endif
  
  END /tmp/ffconf.e8DJYGJM.c
  
  gcc -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -std=c99 -E -o /tmp/ffconf.fnJeLuIu.o /tmp/ffconf.e8DJYGJM.c
  
  G:/msys64/tmp/ffconf.e8DJYGJM.c:3:2: error: #error "unsatisfied condition: defined(__x86_64__)"
  
   #error "unsatisfied condition: defined(__x86_64__)"
  
    ^
  
  Unknown OS 'msys_nt-6.1'. 

  what did i miss ? what did i do wrong ?
  Thanks

• ffmpeg is preferring to encode in VP9 but I'm trying to encode in VP8

  1er septembre 2016, par user1689634

  I’m trying to encode webm video files specifically in VP8, but ffmpeg is forcing VP9. I’m using -c:v libvpx, which to my knowledge is supposed to be VP8, but when it encodes I see it’s encoding in VP9 instead :

  ffmpeg -framerate 7 -loop 1 -i "C:\converted\cover.jpg" -c:v libvpx
  
  -i "C:\converted\Image.wav" -b:v 50k -c:a libvorbis -b:a 96k
  
  -vf scale=-1:300 -shortest -metadata title="%artist% - %album%" 
  
  -metadata author="%artist%" -threads 8 -y "C:\converted\%artist% - %album%.webm"
  
  
  
  ffmpeg version N-81489-ga37e6dd Copyright (c) 2000-2016 the FFmpeg developers
  
    built with gcc 5.4.0 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dx
  
  va2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-lib
  
  ebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --ena
  
  ble-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfree
  
  type --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enab
  
  le-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-lib
  
  openh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschr
  
  oedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheor
  
  a --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvo
  
  rbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --ena
  
  ble-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --e
  
  nable-decklink --enable-zlib
  
    libavutil      55. 29.100 / 55. 29.100
  
    libavcodec     57. 54.101 / 57. 54.101
  
    libavformat    57. 48.101 / 57. 48.101
  
    libavdevice    57.  0.102 / 57.  0.102
  
    libavfilter     6. 57.100 /  6. 57.100
  
    libswscale      4.  1.100 /  4.  1.100
  
    libswresample   2.  1.100 /  2.  1.100
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Input #0, image2, from 'C:\converted\cover.jpg':
  
    Duration: 00:00:00.14, start: 0.000000, bitrate: 3159 kb/s
  
      Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 500x495 [S
  
  AR 1:1 DAR 100:99], 7 fps, 7 tbr, 7 tbn, 7 tbc
  
  Guessed Channel Layout for Input Stream #1.0 : stereo
  
  Input #1, wav, from 'C:\converted\Image.wav':
  
    Metadata:
  
      artist          : ???????
  
      genre           : Alternative Rock
  
      title           : goodnight, wonderend
  
      date            : 2014
  
    Duration: 00:04:48.00, bitrate: 1421 kb/s
  
      Stream #1:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2 channels,
  
   s16, 1411 kb/s
  
  [swscaler @ 055f7d60] deprecated pixel format used, make sure you did set range
  
  correctly
  
  [libvpx-vp9 @ 0312d8e0] v1.6.0
  
  [webm @ 0316e380] Using AVStream.codec to pass codec parameters to muxers is dep
  
  recated, use AVStream.codecpar instead.
  
      Last message repeated 1 times
  
  Output #0, webm, to 'C:\converted\カラスヤサボウ - goodnight, wonderend.w
  
  ebm':
  
    Metadata:
  
      title           : カラスヤサボウ - goodnight, wonderend
  
      author          : カラスヤサボウ
  
      encoder         : Lavf57.48.101
  
      Stream #0:0: Video: vp9 (libvpx-vp9), yuv420p, 303x300 [SAR 10000:9999 DAR 1
  
  00:99], q=-1--1, 50 kb/s, 7 fps, 1k tbn, 7 tbc
  
      Metadata:
  
        encoder         : Lavc57.54.101 libvpx-vp9
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
      Stream #0:1: Audio: vorbis (libvorbis), 44100 Hz, stereo, fltp, 96 kb/s
  
      Metadata:
  
        encoder         : Lavc57.54.101 libvorbis
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mjpeg (native) -> vp9 (libvpx-vp9))
  
    Stream #1:0 -> #0:1 (pcm_s16le (native) -> vorbis (libvorbis))
  
  Press [q] to stop, [?] for help
  
  frame=   30 fps=0.0 q=0.0 size=      29kB time=00:00:00.71 bitrate= 333.4kbits/s
  
  frame=   37 fps= 36 q=0.0 size=      49kB time=00:00:01.71 bitrate= 233.6kbits/s
  
  frame=   45 fps= 27 q=0.0 size=      60kB time=00:00:02.85 bitrate= 170.6kbits/s
  
  frame=   53 fps= 23 q=0.0 size=      84kB time=00:00:04.00 bitrate= 172.7kbits/s
  
  frame=   57 fps= 21 q=0.0 size=     102kB time=00:00:04.57 bitrate= 183.5kbits/s
  
  frame=   62 fps= 19 q=0.0 size=     112kB time=00:00:05.28 bitrate= 173.4kbits/s
  
  frame=   64 fps= 12 q=0.0 Lsize=     141kB time=00:00:09.00 bitrate= 128.1kbits/
  
  s speed=1.69x
  
  video:87kB audio:47kB subtitle:0kB other streams:0kB global headers:4kB muxing o
  
  verhead: 4.908199%
  
  Exiting normally, received signal 2.

  The build I have does have --enable-libvpx and --enable-libvpx-vp9 flags. It is also the latest default static build, I made no changes, just extracted it : ffmpeg-20160828-a37e6dd-win32-static.zip

  I was using an outdated build for a long time and updated today. I can’t find any documentation online to help me with this problem.