$ gdb ffmpeg_g.exe
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(gdb) run -i mpeg2-sample1.mpg -y test.mpg
Starting program: C:\msys\home\Administrator\ffmpeg-trunk/ffmpeg_g.exe -i mpeg2-sample1.mpg -y test.mpg
FFmpeg version SVN-r6631, Copyright (c) 2000-2006 Fabrice Bellard, et al.
configuration: --enable-mingw32 --enable-memalign-hack --enable-gpl --enable-pp
libavutil version: 49.0.1
libavcodec version: 51.16.0
libavformat version: 50.5.0
built on Oct 10 2006 21:25:03, gcc: 3.4.5 (mingw special)
Seems that stream 0 comes from film source: 25.00 (25025/1001) -> 25.00 (25/1)
Input #0, mpegts, from 'mpeg2-sample1.mpg':
Duration: 00:00:59.7, start: 0.210778, bitrate: 5024 kb/s
Stream #0.0[0x65]: Video: mpeg2video, yuv420p, 720x576, 4600 kb/s, 25.00 fps(r)
Stream #0.1[0x66]: Audio: mp2, 48000 Hz, stereo, 192 kb/s
Output #0, mpeg, to 'test.mpg':
Stream #0.0: Video: mpeg1video, yuv420p, 720x576, q=2-31, 200 kb/s, 25.00 fps(c)
Stream #0.1: Audio: mp2, 48000 Hz, stereo, 64 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
frame= 1499 q=31.0 Lsize= 5084kB time=59.9 bitrate= 695.5kbits/s
video:4534kB audio:468kB global headers:0kB muxing overhead 1.652562%
Program exited normally.
(gdb) run -i mpeg2-sample1.mpg -ac copy -y test.mpg
Starting program: C:\msys\home\Administrator\ffmpeg-trunk/ffmpeg_g.exe -i mpeg2-sample1.mpg -ac copy -y test.mpg
Program received signal SIGFPE, Arithmetic exception.
l2_select_table (bitrate=5663694, nb_channels=64, freq=0, lsf=48000)
at mpegaudiodec.c:1299
1299 ch_bitrate = bitrate / nb_channels;
(gdb) bt
#0 l2_select_table (bitrate=5663694, nb_channels=64, freq=0, lsf=48000)
at mpegaudiodec.c:1299
#1 0x00fa9b00 in ?? ()
#2 0x00000040 in ?? ()
#3 0x00566bce in MPA_encode_init (avctx=0xa) at mpegaudio.c:118
#4 0x77c35c94 in msvcrt!_except_handler2 ()
from C:\WINDOWS\system32\msvcrt.dll