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• How to remove libvpx ?

  8 juillet 2016, par olega

  Hi guys,
  This time I will try to be more specific.
  I am trying to convert .mp4 to .webm with ffmpeg.
  It failed. In conversion log I found this part :

  ---

  [libvpx @ 0x3584900] v1.2.0    
  
  [libvpx @ 0x3584900] Failed to initialize encoder: ABI version mismatch

  ---

  I searched this site and found this :

  ---

  It seems you have multiple versions of libvpx installed. Remove all of them but the latest, and try recompiling FFmpeg.

  ---

  There are more info about my server :

  ---

  Server CentOs 6

  ffmpeg version N-80913-gd915b6e Copyright (c) 2000-2016 the FFmpeg developers
  
  
  
    built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-16)
  
   configuration: --enable-libvpx --enable-libvorbis
  
  
  
    libavutil      55. 28.100 / 55. 28.100
  
    libavcodec     57. 48.101 / 57. 48.101
  
    libavformat    57. 41.100 / 57. 41.100    
  
    libavdevice    57.  0.102 / 57.  0.102
  
    libavfilter     6. 47.100 /  6. 47.100
  
    libswscale      4.  1.100 /  4.  1.100
  
    libswresample   2.  1.100 /  2.  1.100
  
  
  
  root@s192-169-189-136 [/usr/local/lib]# ls -l
  
  total 275952
  
  ./
  
  ../
  
  codecs/
  
  error_log
  
  libavcodec.a
  
  libavcodec.so -> libavcodec.so.52.108.0*
  
  libavcodec.so.52 -> libavcodec.so.52.108.0*
  
  libavcodec.so.52.108.0*
  
  libavcore.a
  
  libavcore.so -> libavcore.so.0.16.1*
  
  libavcore.so.0 -> libavcore.so.0.16.1*
  
  libavcore.so.0.16.1*
  
  libavdevice.a
  
  libavdevice.so -> libavdevice.so.52.2.3*
  
  libavdevice.so.52 -> libavdevice.so.52.2.3*
  
  libavdevice.so.52.2.3*
  
  libavfilter.a
  
  libavfilter.so -> libavfilter.so.1.74.0*
  
  libavfilter.so.1 -> libavfilter.so.1.74.0*
  
  libavfilter.so.1.74.0*
  
  libavformat.a
  
  libavformat.so -> libavformat.so.52.93.0*
  
  libavformat.so.52 -> libavformat.so.52.93.0*
  
  libavformat.so.52.93.0*
  
  libavutil.a
  
  libavutil.so -> libavutil.so.50.36.0*
  
  libavutil.so.50 -> libavutil.so.50.36.0*
  
  libavutil.so.50.36.0*
  
  libfdk-aac.a
  
  libfdk-aac.la*
  
  libfdk-aac.so -> libfdk-aac.so.1.0.0*
  
  libfdk-aac.so.1 -> libfdk-aac.so.1.0.0*
  
  libfdk-aac.so.1.0.0*
  
  libgpac_static.a
  
  libmp3lame.a
  
  libmp3lame.la*
  
  libmp3lame.so -> libmp3lame.so.0.0.0*
  
  libmp3lame.so.0 -> libmp3lame.so.0.0.0*
  
  libmp3lame.so.0.0.0*
  
  libogg.a
  
  libogg.la*
  
  libogg.so -> libogg.so.0.8.2*
  
  libogg.so.0 -> libogg.so.0.8.2*
  
  libogg.so.0.7.1*
  
  libogg.so.0.8.2*
  
  libopenjpeg.a
  
  libopenjpeg.la*
  
  libopenjpeg.so -> libopenjpeg.so.1.5.0*
  
  libopenjpeg.so.1 -> libopenjpeg.so.1.5.0*
  
  libopenjpeg.so.1.5.0*
  
  libswresample.a
  
  libswscale.a
  
  libswscale.so -> libswscale.so.0.12.0*
  
  libswscale.so.0 -> libswscale.so.0.12.0*
  
  libswscale.so.0.12.0*
  
  libvorbis.a
  
  libvorbisenc.a
  
  libvorbisenc.la*
  
  libvorbisfile.a
  
  libvorbisfile.la*
  
  libvorbis.la*
  
  libvpx.a
  
  libvpx.so -> libvpx.so.1.2.0*
  
  libvpx.so.0 -> libvpx.so.0.9.7*
  
  libvpx.so.0.9 -> libvpx.so.0.9.7*
  
  libvpx.so.0.9.7*
  
  libvpx.so.1 -> ibvpx.so.1.2.0*
  
  libvpx.so.1.2 -> libvpx.so.1.2.0*
  
  libvpx.so.1.2.0*
  
  libxvidcore.a
  
  libxvidcore.so.4 -> libxvidcore.so.4.2
  
  libxvidcore.so.4.2
  
  libyasm.a
  
  mysql.sock -> ../../../var/lib/mysql/mysql.sock=
  
  php/
  
  php.ini
  
  .php.ini.swp
  
  php.ini,v
  
  pkgconfig/

  So, I have 2 questions :

  Which version of libvpx I have to remove ?

  How to remove libvpx (I could not find how anywhere) ?

  Thank you

• Obscure error while transcoding a video with FFMPEG

  8 juillet 2016, par ZiggidyCreative

  thanks for taking a moment to look at this FFMPEG error i’m having. I’m trying to transcode any video file, recorded in portrait mode and crop it to a square using the top portion and then size it down to 600x600 square. Here is the command i’m using :

  ffmpeg -y -i input-video.mov -filter_complex '[0] crop=1080:1080:0:0, scale=600:600, split=2[out1][out2]' -map '[out1]' video/transcoded-video.mp4 -map '[out2]' -qscale:v 6 thumbnails/thumb_%03d.png

  Here are the errors :

  [swscaler @ 0x2502260] No accelerated colorspace conversion found from yuv420p to rgb24.
  
  [swscaler @ 0x250a2b0] No accelerated colorspace conversion found from yuv420p to rgb24.
  
  [swscaler @ 0x2512300] No accelerated colorspace conversion found from yuv420p to rgb24.
  
  [NULL @ 0x24e9dd0] [Eval @ 0x7fff769243e0] Undefined constant or missing '(' in 'baseline'
  
  [NULL @ 0x24e9dd0] Unable to parse option value "baseline"
  
  [NULL @ 0x24e9dd0] Error setting option profile to value baseline.

  Here is the output :

  ffmpeg version git-2013-06-02-5711e4f Copyright (c) 2000-2013 the FFmpeg developers
  
   built on Jun  2 2013 07:38:40 with gcc 4.4.3 (Ubuntu 4.4.3-4ubuntu5.1)
  
   configuration: --enable-shared --disable-asm --prefix=/app/vendor/ffmpeg
  
   libavutil      52. 34.100 / 52. 34.100
  
   libavcodec     55. 13.100 / 55. 13.100
  
   libavformat    55.  8.102 / 55.  8.102
  
   libavdevice    55.  2.100 / 55.  2.100
  
   libavfilter     3. 74.101 /  3. 74.101
  
   libswscale      2.  3.100 /  2.  3.100
  
   libswresample   0. 17.102 /  0. 17.102
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/app/downloads/bf951fbc8322d9010d679e656ccda330b6f19f36.mov':
  
   Metadata:
  
     major_brand     : qt  
  
     minor_version   : 0
  
     compatible_brands: qt  
  
     creation_time   : 2016-07-01 19:27:37
  
   Duration: 00:00:04.77, start: 0.000000, bitrate: 17881 kb/s
  
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 17874 kb/s, 29.98 fps, 30 tbr, 600 tbn, 1200 tbc
  
     Metadata:
  
       rotate          : 90
  
       creation_time   : 2016-07-01 19:27:37
  
       handler_name    : Core Media Data Handler
  
  [swscaler @ 0x2502260] No accelerated colorspace conversion found from yuv420p to rgb24.
  
  [swscaler @ 0x250a2b0] No accelerated colorspace conversion found from yuv420p to rgb24.
  
  [swscaler @ 0x2512300] No accelerated colorspace conversion found from yuv420p to rgb24.
  
  [NULL @ 0x24e9dd0] [Eval @ 0x7fff769243e0] Undefined constant or missing '(' in 'baseline'
  
  [NULL @ 0x24e9dd0] Unable to parse option value "baseline"
  
  [NULL @ 0x24e9dd0] Error setting option profile to value baseline.
  
  Output #0, mp4, to '/app/outputs/2091/bf951fbc8322d9010d679e656ccda330b6f19f36.mp4':
  
   Metadata:
  
     major_brand     : qt  
  
     minor_version   : 0
  
     compatible_brands: qt  
  
     Stream #0:0: Video: mpeg4, yuv420p, 600x600, q=2-31, 200 kb/s, 90k tbn, 30 tbc
  
  Output #1, image2, to '/app/outputs/2091/thumbs/thumb_%03d.png':
  
   Metadata:
  
     major_brand     : qt  
  
     minor_version   : 0
  
     compatible_brands: qt  
  
     Stream #1:0: Video: png, rgb24, 600x600, q=2-31, 200 kb/s, 90k tbn, 30 tbc
  
  Stream mapping:
  
   Stream #0:0 (h264) -> crop
  
   split:output0 -> Stream #0:0 (mpeg4)
  
   split:output1 -> Stream #1:0 (png)

  Thanks again for looking at this and anything will help.

• How to get the duration/bitrate of a H264 file with avconv/ffmpeg

  11 juillet 2016, par maximedupre

  Executing avprobe test.h264 outputs

  Input #0, h264, from 'test.h264':
  
    Duration: N/A, bitrate: N/A
  
      Stream #0.0: Video: h264 (High), yuv420p, 720x480, 25 fps, 25 tbn, 50 tbc

  Executing file test.h264 outputs

  test.h264: JVT NAL sequence, H.264 video @ L 30

  Note that the file isn’t damaged or corrupted, I can play it with no problem on VLC.

  Is there a way to get the duration and bitrate from a raw H264 file ? I read somewhere that it might be possible if I decode the file first, but I’m not sure how this can be done.

  Edit #1

  I’m the one creating the H264 file with a Python library called picamera.

  Edit #2

  Console output when running avconv -i test.h264 -f null -

  avconv version 11.7-6:11.7-1~deb8u1+rpi1, Copyright (c) 2000-2016 the Libav developers
  
    built on Jun 17 2016 02:13:49 with gcc 4.9.2 (Raspbian 4.9.2-10)
  
  [h264 @ 0x1bcc200] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, h264, from 'test.h264':
  
    Duration: N/A, bitrate: N/A
  
      Stream #0.0: Video: h264 (High), yuv420p, 720x480, 25 fps, 25 tbn
  
   Output #0, null, to 'pipe:':
  
    Metadata:
  
      encoder         : Lavf56.1.0
  
      Stream #0.0: Video: rawvideo, yuv420p, 720x480, q=2-31, 200 kb/s, 25 tbn, 25 tbc
  
      Metadata:
  
        encoder         : Lavc56.1.0 rawvideo
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> rawvideo (native))
  
  Press ctrl-c to stop encoding
  
  frame=  208 fps= 68 q=0.0 Lsize=       0kB time=10000000000.00 bitrate=   0.0kbits/s
  
  video:13kB audio:0kB other streams:0kB global headers:0kB muxing overhead: unknown