Hi guys,

I have a .mov file that has 4 mono audio tracks, and I'm wondering how to get the audio into 5.1 sound for a converted x264 video in mp4 container with ffmpeg. Here's the output:

ffmpeg version 1.0.1 Copyright (c) 2000-2012 the FFmpeg developers
built on Feb 15 2013 11:51:03 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3 --enable-x11grab
libavutil 51. 73.101 / 51. 73.101
libavcodec 54. 59.100 / 54. 59.100
libavformat 54. 29.104 / 54. 29.104
libavdevice 54. 2.101 / 54. 2.101
libavfilter 3. 17.100 / 3. 17.100
libswscale 2. 1.101 / 2. 1.101
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
Guessed Channel Layout for Input Stream #0.0 : mono
Guessed Channel Layout for Input Stream #0.1 : mono
Guessed Channel Layout for Input Stream #0.2 : mono
Guessed Channel Layout for Input Stream #0.3 : mono
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/media/PORTABLE09-STG/hasbro/Trans_Gen-1-EP-07.mov':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
creation_time : 2011-09-07 18:42:15
comment : Source ID = 060a2b340101010101010f00-13-00-00-00-{4e4cc58d-8c0f-0d5f-060e2b347f7f2a80}
comment-eng : Source ID = 060a2b340101010101010f00-13-00-00-00-{4e4cc58d-8c0f-0d5f-060e2b347f7f2a80}
timecode : 00:58:29;25
Duration: 00:24:22.42, start: 0.000000, bitrate: 223055 kb/s
Stream #0:0(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s
Metadata:
creation_time : 2011-09-07 18:42:15
handler_name : Apple Alias Data Handler
Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s
Metadata:
creation_time : 2011-09-07 18:42:15
handler_name : Apple Alias Data Handler
Stream #0:2(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s
Metadata:
creation_time : 2011-09-07 18:42:15
handler_name : Apple Alias Data Handler
Stream #0:3(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s
Metadata:
creation_time : 2011-09-07 18:42:15
handler_name : Apple Alias Data Handler
Stream #0:4(eng): Video: dnxhd (AVdn / 0x6E645641), yuv422p10le, 1920x1080, 219980 kb/s, 29.97 fps, 29.97 tbr, 2997 tbn, 2997 tbc
Metadata:
creation_time : 2011-09-07 18:42:15
handler_name : Apple Alias Data Handler
Stream #0:5(eng): Data: none (tmcd / 0x64636D74)
Metadata:
creation_time : 2011-09-07 18:42:15
handler_name : Apple Alias Data Handler
timecode : 00:58:29;25

Any help would be great. Thanks!