ffmpeg flv->mpg Buffer Underflow Errors

ffmpeg Underflow Errors
=======================

># uname -a

Linux 3.10.11-200.fc19.x86_64 #1 SMP Sep 9 13:03:01 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

># ls -lst jump480.flv

9092 -rw-r--r--. 1 josh josh 9308704 Sep 25 10:30 jump480.flv

># ffmpeg -i jump480.flv -target ntsc-dvd jump480.mpg

ffmpeg version 1.2.2 Copyright (c) 2000-2013 the FFmpeg developers

  built on Aug  4 2013 08:24:19 with gcc 4.8.1 (GCC) 20130603 (Red Hat 4.8.1-1)

  configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic' --enable-bzlib --disable-crystalhd --enable-frei0r --enable-gnutls --enable-libass --enable-libcelt --enable-libdc1394 --disable-indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab --enable-avfilter --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect

  libavutil      52. 18.100 / 52. 18.100
  libavcodec     54. 92.100 / 54. 92.100
  libavformat    54. 63.104 / 54. 63.104
  libavdevice    54.  3.103 / 54.  3.103
  libavfilter     3. 42.103 /  3. 42.103
  libswscale      2.  2.100 /  2.  2.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  2.100 / 52.  2.100

Input #0, flv, from 'jump480.flv':

  Metadata:
    starttime       : 0
    totalduration   : 178
    totaldatarate   : 419
    bytelength      : 9308704
    canseekontime   : true
    sourcedata      : DB74A37E4HM1380137267417925
    purl            :
    pmsg            :

  Duration: 00:02:57.58, start: 0.000000, bitrate: 419 kb/s
    Stream #0:0: Video: h264 (Main), yuv420p, 854x480 [SAR 1:1 DAR 427:240], 322 kb/s, 24 tbr, 1k tbn, 48 tbc
    Stream #0:1: Audio: aac, 44100 Hz, stereo, fltp, 99 kb/s


Output #0, dvd, to 'jump480.mpg':

  Metadata:
    starttime       : 0
    totalduration   : 178
    totaldatarate   : 419
    bytelength      : 9308704
    canseekontime   : true
    sourcedata      : B4A7DD7E4HM1380137267417925
    purl            :
    pmsg            :
    encoder         : Lavf54.63.104
    Stream #0:0: Video: mpeg2video, yuv420p, 720x480 [SAR 427:360 DAR 427:240], q=2-31, 6000 kb/s, 90k tbn, 29.97 tbc
    Stream #0:1: Audio: ac3, 48000 Hz, stereo, fltp, 448 kb/s

Stream mapping:

  Stream #0:0 -> #0:0 (h264 -> mpeg2video)
  Stream #0:1 -> #0:1 (aac -> ac3)

[dvd @ 0x9b3720] buffer underflow i=1 bufi=1550 size=1792
[dvd @ 0x9b3720] buffer underflow i=1 bufi=1757 size=1792
[dvd @ 0x9b3720] buffer underflow i=1 bufi=1617 size=1792
[dvd @ 0x9b3720] buffer underflow i=1 bufi=1652 size=1792

buffer underflow i=1 bufi=1752 size=1792B time=00:02:50.29 bitrate=1707.1kbits/s dup=1015 drop=0
frame= 5323 fps=324 q=2.0 Lsize=   37816kB time=00:02:57.57 bitrate=1744.5kbits/s dup=1060 drop=0

video:26705kB audio:9711kB subtitle:0 global headers:0kB muxing overhead 3.844216%

>#