ffmpeg fails to transcode (libmp3lame fails with error : output buffer too small

[nathanp@…]

Here is a transcript of what leads to the error.

 "/opt/local/bin/ffmpeg -i /Users/nathan/miracle/trunk/www/public/assets/0000/0001/ShakeItOff.m4v -s 480x360 -vcodec flv -r 25 -qscale 8 -f flv -y /Users/nathan/miracle/trunk/www/public/assets/0000/0001/f.flv\n"

Seems stream 1 codec frame rate differs from container frame rate: 3143106.00 (3143106/1) -> 24.00 (24/1)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/nathan/miracle/trunk/www/public/assets/0000/0001/ShakeItOff.m4v':
  Duration: 00:04:03.08, start: 0.000000, bitrate: 970 kb/s
    Stream #0.0(und): Audio: aac, 44100 Hz, stereo, s16
    Stream #0.1(und): Video: h264, yuv420p, 480x320, PAR 1:1 DAR 3:2, 24 tbr, 1571553.00 tbn, 3143106.00 tbc
Output #0, flv, to '/Users/nathan/miracle/trunk/www/public/assets/0000/0001/f.flv':
    Stream #0.0(und): Video: flv, yuv420p, 480x360 [PAR 9:8 DAR 3:2], q=2-31, 200 kb/s, 90k tbn, 25 tbc
    Stream #0.1(und): Audio: libmp3lame, 44100 Hz, stereo, s16, 64 kb/s
Stream mapping:
  Stream #0.1 -> #0.0
  Stream #0.0 -> #0.1
Press [q] to stop encoding
[libmp3lame @ 0x10181e200]lame: output buffer too small (buffer index: 9404, free bytes: 388)

This is a bug in the version of lame that was used when I built ffmpeg (I built it on Dec 4, and no updates have been posted to the port tree) See this Ubuntu bug detailing the same problem. ​https://bugs.launchpad.net/ubuntu/+source/lame/+bug/401406

Since I'm not sure what relevant ports you'll need information about here is the list off all installed ports.

  autoconf @2.65_0 (active)
  automake @1.11_0 (active)
  bzip2 @1.0.5_3+darwin (active)
  cppunit @1.12.1_0 (active)
  dirac @1.0.2_0 (active)
  expat @2.0.1_0 (active)
  faac @1.28_1 (active)
  faad2 @2.7_0+darwin (active)
  ffmpeg @0.5_5+darwin_10 (active)
  gettext @0.17_4 (active)
  glib2 @2.22.2_0+darwin
  glib2 @2.22.3_0+darwin (active)
  gmake @3.81_0 (active)
  gperf @3.0.4_0 (active)
  groff @1.20.1_1 (active)
  help2man @1.36.4_1 (active)
  lame @3.98.2_1 (active)
  libiconv @1.13_0 (active)
  libogg @1.1.4_0 (active)
  liboil @0.3.16_1+darwin_10 (active)
  libsdl @1.2.14_8 (active)
  libtheora @1.1.1_0 (active)
  libtool @2.2.6b_0 (active)
  libvorbis @1.2.3_0 (active)
  m4 @1.4.13_0 (active)
  mp4v2 @1.9.1_1 (active)
  mysql5 @5.1.41_0 (active)
  mysql5-server @5.1.41_0 (active)
  ncurses @5.7_0+darwin_10 (active)
  ncursesw @5.7_0+darwin_10 (active)
  openssl @0.9.8l_0+darwin (active)
  p5-locale-gettext @1.05_0 (active)
  perl5 @5.8.9_0 (active)
  perl5.8 @5.8.9_3 (active)
  pkgconfig @0.23_1 (active)
  readline @6.0.000_2+darwin (active)
  schroedinger @1.0.8_0 (active)
  x264 @20090810_2 (active)
  xorg-bigreqsproto @1.1.0_0 (active)
  xorg-inputproto @2.0_0 (active)
  xorg-kbproto @1.0.4_0 (active)
  xorg-libX11 @1.3.2_0 (active)
  xorg-libXau @1.0.5_0 (active)
  xorg-libXdmcp @1.0.3_0 (active)
  xorg-libXext @1.1.1_0 (active)
  xorg-libXrandr @1.3.0_1 (active)
  xorg-randrproto @1.3.1_0 (active)
  xorg-renderproto @0.11_0 (active)
  xorg-util-macros @1.3.0_0 (active)
  xorg-xcmiscproto @1.2.0_0 (active)
  xorg-xextproto @7.1.1_0 (active)
  xorg-xf86bigfontproto @1.2.0_0 (active)
  xorg-xproto @7.0.16_0 (active)
  xorg-xtrans @1.2.5_0 (active)
  xrender @0.9.5_0 (active)
  XviD @1.2.2_0 (active)
  yasm @0.8.0_0 (active)
  zlib @1.2.3_3 (active)

[rectalogic (Andrew Wason)]

Apparently this is fixed as of lame 3.98.3 according to the ffmpeg bug ​https://roundup.ffmpeg.org/issue803 The current port is 3.98.2-1, the current lame release is 3.98.4

[mf2k (Frank Schima)]

I updated the lame port to 3.98.4 in r66575.