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• ffmpeg : How can I send a H.265 encoded stream to wowza ?

  24 avril 2015, par Fuzz

  I managed to encode H.265 to an output file like this :

  ffmpeg -i test.m2ts -c:v libx265 -c:a copy output.mp4

  and I managed to stream a H.264 file to wowza like this :

  ffmpeg -re -i sample.mp4 -vcodec libx264 -vprofile default -vprofile baseline -r 24 -g 48 -vb 150000 -strict experimental -acodec aac -ab 96000 -ar 48000 -ac 2 -f rtsp -muxdelay 0.1 rtsp://username:password@127.0.0.1:1935/ApplicationName/myStream

  But I just cant seem to stream a H.265 to a rtsp stream.

  If I use the libx265 in the command above I get the error :

  Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

  Any hints would be greatly appreciated.

  Here is the console message with -loglevel verbose

  >ffmpeg -re -i sample.mp4 -vcodec libx265 -vprofile default -vprofile baseline -r 24 -g 48 -vb 150000 -strict experimental -acodec aac -ab 96000 -ar 48000 -ac 2 -f rtsp -muxdelay 0.1 rtsp://username:password@127.0.0.1:1935/ApplicationName/myStream -l
  
  oglevel verbose
  
  ffmpeg version N-69156-gff5b9a1c Copyright (c) 2000-2015 the FFmpeg developers
  
    built on Jan 20 2015 00:38:00 with gcc 4.9.2 (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-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --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-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
  
    libavutil      54. 17.100 / 54. 17.100
  
    libavcodec     56. 20.100 / 56. 20.100
  
    libavformat    56. 19.100 / 56. 19.100
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5.  8.100 /  5.  8.100
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Routing option strict to both codec and muxer layer
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'sample.mp4':
  
    Metadata:
  
      major_brand     : qt
  
      minor_version   : 512
  
      compatible_brands: qt
  
      creation_time   : 1970-01-01 00:00:00
  
      encoder         : Lavf52.73.0
  
    Duration: 00:09:56.46, start: 0.000000, bitrate: 524 kb/s
  
      Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 424x240 (432x240), 420 kb/s, 24 fps, 24 tbr, 24 tbn, 48 tbc (default)
  
      Metadata:
  
        creation_time   : 1970-01-01 00:00:00
  
        handler_name    : DataHandler
  
        encoder         : libx264
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 99 kb/s (default)
  
      Metadata:
  
        creation_time   : 1970-01-01 00:00:00
  
        handler_name    : DataHandler
  
  [graph 0 input from stream 0:0 @ 00000000050f6e60] w:424 h:240 pixfmt:yuv420p tb:1/24 fr:24/1 sar:0/1 sws_param:flags=2
  
  [graph 1 input from stream 0:1 @ 0000000002c38700] tb:1/48000 samplefmt:fltp samplerate:48000 chlayout:0x3
  
  [libx265 @ 0000000002c172a0] [Eval @ 000000000022aca0] Undefined constant or missing '(' in 'baseline'
  
  [libx265 @ 0000000002c172a0] Unable to parse option value "baseline"
  
  [libx265 @ 0000000002c172a0] Error setting option profile to value baseline.
  
  Output #0, rtsp, to 'rtsp://username:password@127.0.0.1:1935/ApplicationName/myStream':
  
    Metadata:
  
      major_brand     : qt
  
      minor_version   : 512
  
      compatible_brands: qt
  
      encoder         : Lavf52.73.0
  
      Stream #0:0(eng): Video: hevc, none, q=2-31, 128 kb/s, 24 fps (default)
  
      Metadata:
  
        creation_time   : 1970-01-01 00:00:00
  
        handler_name    : DataHandler
  
        encoder         : Lavc56.20.100 libx265
  
      Stream #0:1(eng): Audio: aac, 0 channels, 128 kb/s (default)
  
      Metadata:
  
        creation_time   : 1970-01-01 00:00:00
  
        handler_name    : DataHandler
  
        encoder         : Lavc56.20.100 aac
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> hevc (libx265))
  
    Stream #0:1 -> #0:1 (aac (native) -> aac (native))
  
  Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

• ffmpeg : error while re encoding video

  30 décembre 2015, par Ashraf Hefny

  I am trying to re-encoding video with ffmpeg, and I am getting this error :

  [aac @ 0x3752e40] The encoder 'aac' is experimental but experimental codecs are not enabled, add '-strict -2' if you want to use it.

  The command and the full output: :

  /root$ /usr/bin/ffmpeg -i http://website.com/uploads/usr_videos/MVI_05571.mp4  -b:v 500k  -threads 4 -vf scale=-1:144  -b:a 128k http://website.com/uploads/usr_videos/144p_output.mp4
  
  ffmpeg version 2.5.4 Copyright (c) 2000-2015 the FFmpeg developers
  
  built on Feb 18 2015 01:39:38 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-11)
  
  configuration: 
  
  libavutil      54. 15.100 / 54. 15.100
  
  libavcodec     56. 13.100 / 56. 13.100
  
  libavformat    56. 15.102 / 56. 15.102
  
  libavdevice    56.  3.100 / 56.  3.100
  
  libavfilter     5.  2.103 /  5.  2.103
  
  libswscale      3.  1.101 /  3.  1.101
  
  libswresample   1.  1.100 /  1.  1.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from     'http://website.com/uploads/usr_videos/MVI_05571.mp4':
  
  Metadata:
  
  major_brand     : isom
  
  minor_version   : 512
  
  compatible_brands: isomiso2mp41
  
  encoder         : Lavf54.63.104
  
  Duration: 00:01:48.26, start: 0.023220, bitrate: 7122 kb/s
  
  Stream #0:0(eng): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 6990 kb/s, 29 fps, 29 tbr, 14848 tbn, 29 tbc (default)
  
  Metadata:
  
    handler_name    : VideoHandler
  
  Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 126 kb/s (default)
  
  Metadata:
  
    handler_name    : SoundHandler
  
  [aac @ 0x3752e40] The encoder 'aac' is experimental but experimental codecs are not enabled, add '-strict -2' if you want to use it.

  So Could anyone till me what this error mean and how can I fix it ?
  I am using ffmpeg version 2.5 on centOS server.

• FFMPEG crop video output is black screen, sound is good [on hold]

  11 janvier 2016, par Oum Alaa

  I cropped a video using ffmpeg command line, the output is black screen, the sound is clear and good :

  ffmpeg -i Original.mp4 -t 00:00:29 -vf "crop=634:300:0:60" Done.mp4

  ffmpeg version :

  ffmpeg version 0.8.17-4:0.8.17-0ubuntu0.12.04.1, Copyright (c) 2000-2014 the Libav developers

  built on Mar 16 2015 13:26:50 with gcc 4.6.3

  video information :

  mediainfo '--Inform=Video;%Width%x%Height%' Original.mp4
  
  634x360

  Thanks in advance