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• Revision 0bb49c4e30 : Merge "Add SSE2 versions for rectangular sad and sad4d functions." into experime

  17 avril 2013, par Ronald S. Bultje

  Merge "Add SSE2 versions for rectangular sad and sad4d functions." into experimental

• ffmpeg error while converting to mp4 Error while opening encoder for output stream #0.0

  20 mars 2016, par Josh

  I am trying to convert various file types to mp4 to be displayed using ffmpeg, but i keep getting the error :

  Error while opening encoder for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height

  Another piece that looks important is :

  [libx264 @ 0x93caef0] broken ffmpeg default settings detected

  [libx264 @ 0x93caef0] use an encoding preset (e.g. -vpre medium)

  [libx264 @ 0x93caef0] preset usage : -vpre -vpre

  [libx264 @ 0x93caef0] speed presets are listed in x264 —help

  [libx264 @ 0x93caef0] profile is optional ; x264 defaults to high

  The latest code I am running is :

  ffmpeg -i source -s 320x240 -r 30000/1001 -b 200k -bt 240k -vcodec libx264 -coder 0 -bf 0 -refs 1 -flags2 -wpred-dct8x8 -level 30 -maxrate 10M -bufsize 10M -acodec libfaac -ac 2 -ar 48000 -ab 192k destination

  I have seen a few other people with this issue, but their fixes didn’t work for some reason.

  In case it matters : ultimately this will be used in php, though I am trying to get it working first via putty

  EDIT: : Here is the full thing as requested(using a wmv, have tested wmv and flv) :

       ~ >> ffmpeg -i path.wmv -s 320x240 -r 30000/1001 -b 200k -r 29.97 -bt 240k -vcodec libx264 -coder 0 -bf 0 -refs 1 -flags2 -wpred-dct8x8 -level 30 -maxrate 10M -bufsize 10M -acodec libfaac -ac 2 -ar 48000 -ab 192k path.mp4
  
  FFmpeg version SVN-r26076, Copyright (c) 2000-2011 the FFmpeg developers
  
    built on Aug 28 2012 17:55:47 with gcc 4.1.2 20080704 (Red Hat 4.1.2-52)
  
    configuration: --enable-version3 --enable-gpl --enable-nonfree --enable-shared --enable-postproc --enable-avfilter --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvpx --enable-libfaac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --disable-ffplay --disable-indevs --disable-outdevs --disable-demuxer=v4l --disable-demuxer=v4l2 --disable-mmx
  
    libavutil     50.36. 0 / 50.36. 0
  
    libavcore      0.16. 1 /  0.16. 1
  
    libavcodec    52.108. 0 / 52.108. 0
  
    libavformat   52.93. 0 / 52.93. 0
  
    libavdevice   52. 2. 3 / 52. 2. 3
  
    libavfilter    1.74. 0 /  1.74. 0
  
    libswscale     0.12. 0 /  0.12. 0
  
    libpostproc   51. 2. 0 / 51. 2. 0
  
  
  
  Seems stream 1 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 29.97 (30000/1001)
  
  Input #0, asf, from 'path.wmv':
  
    Metadata:
  
      SfOriginalFPS   : 299
  
      WMFSDKVersion   : 11.0.6001.7000
  
      WMFSDKNeeded    : 0.0.0.0000
  
      IsVBR           : 0
  
      title           : Wildlife in HD
  
      artist          :
  
      copyright       : © 2008 Microsoft Corporation
  
      comment         : Footage: Small World Productions, Inc; Tourism New Zealand | Producer: Gary F. Spradling | Music: Steve Ball
  
    Duration: 00:00:30.09, start: 8.000000, bitrate: 6977 kb/s
  
      Stream #0.0(eng): Audio: wmav2, 44100 Hz, 2 channels, s16, 192 kb/s
  
      Stream #0.1(eng): Video: vc1, yuv420p, 1280x720, 5942 kb/s, 29.97 tbr, 1k tbn, 1k tbc
  
  File 'path.mp4' already exists. Overwrite ? [y/N] y
  
  [buffer @ 0x9ce9eb0] w:1280 h:720 pixfmt:yuv420p
  
  [scale @ 0x9ce8f70] w:1280 h:720 fmt:yuv420p -> w:320 h:240 fmt:yuv420p flags:0x4
  
  [libx264 @ 0x9ce9ef0] broken ffmpeg default settings detected
  
  [libx264 @ 0x9ce9ef0] use an encoding preset (e.g. -vpre medium)
  
  [libx264 @ 0x9ce9ef0] preset usage: -vpre <speed> -vpre <profile>
  
  [libx264 @ 0x9ce9ef0] speed presets are listed in x264 --help
  
  [libx264 @ 0x9ce9ef0] profile is optional; x264 defaults to high
  
  Output #0, mp4, to 'path.mp4':
  
      Stream #0.0(eng): Video: libx264, yuv420p, 320x240, q=2-31, 200 kb/s, 90k tbn, 29.97 tbc
  
      Stream #0.1(eng): Audio: libfaac, 48000 Hz, 2 channels, s16, 192 kb/s
  
  Stream mapping:
  
    Stream #0.1 -> #0.0
  
    Stream #0.0 -> #0.1
  
  Error while opening encoder for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height
  
  </profile></speed>

  Thanks for any help

• libavutil : document side effects of macros

  10 juillet 2014, par Christophe Gisquet

  libavutil : document side effects of macros
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavutil/intreadwrite.h