FFMPEG wmv conversion to flv

Question

anyone using ffmpeg

I have a fairly simple wmv exported by a user from movie maker with standard output and want to convert to .flv using

C:>ffmpeg -i "E:\Jab Core 4 Recounters.wmv" -vcodec flv "C:\Net Projects\SVN\IntegratedAlgorithmics\src\MediaAdmin\MediaAdmin\bin\Debug\Movies\Jab Core 4 Recounters.flv" -ar 44100

the output / error i receive is

FFmpeg version 0.5, Copyright (c) 2000-2009 Fabrice Bellard, et al.
  configuration: --enable-gpl --enable-postproc --enable-swscale --enable-avfilt
er --enable-avfilter-lavf --enable-pthreads --enable-avisynth --enable-libfaac -
-enable-libfaad --enable-libmp3lame --enable-libspeex --enable-libtheora --enabl
e-libvorbis --enable-libxvid --enable-libx264 --enable-memalign-hack
  libavutil     49.15. 0 / 49.15. 0
  libavcodec    52.20. 0 / 52.20. 0
  libavformat   52.31. 0 / 52.31. 0
  libavdevice   52. 1. 0 / 52. 1. 0
  libavfilter    0. 4. 0 /  0. 4. 0
  libswscale     0. 7. 1 /  0. 7. 1
  libpostproc   51. 2. 0 / 51. 2. 0
  built on Mar 16 2009 16:09:18, gcc: 4.2.4 [Sherpya]
[wmv3 @ 0x1c0d490]Extra data: 8 bits left, value: 0

Seems stream 1 codec frame rate differs from container frame rate: 1000.00 (1000
/1) -> 30.00 (30/1)
Input #0, asf, from 'E:\Jab Core 4 Recounters.wmv':
  Duration: 00:01:55.99, start: 5.000000, bitrate: 813 kb/s
    Stream #0.0: Audio: wmav2, 48000 Hz, stereo, s16, 192 kb/s
    Stream #0.1: Video: wmv3, yuv420p, 640x480, 586 kb/s, 30 tbr, 1k tbn, 1k tbc

Output #0, flv, to 'C:\Net Projects\SVN\IntegratedAlgorithmics\src\MediaAdmin\Me
diaAdmin\bin\Debug\Movies\Jab Core 4 Recounters.flv':
    Stream #0.0: Video: flv, yuv420p, 640x480, q=2-31, 200 kb/s, 90k tbn, 30 tbc

    Stream #0.1: Audio: libmp3lame, 48000 Hz, stereo, s16, 64 kb/s
Stream mapping:
  Stream #0.1 -> #0.0
  Stream #0.0 -> #0.1
[wmv3 @ 0x1c0d490]Extra data: 8 bits left, value: 0
[libmp3lame @ 0x1c0d8d0]flv does not support that sample rate, choose from (4410
0, 22050, 11025).
Could not write header for output file #0 (incorrect codec parameters ?)

i added th -ar switch when i got the error the first time

the codec info i have on the file is as follows

General
Complete name                    : E:\Jab Core 4 Recounters.wmv
Format                           : Windows Media
File size                        : 11.3 MiB
Duration                         : 2mn 0s
Overall bit rate mode            : Variable
Overall bit rate                 : 780 Kbps
Maximum Overall bit rate         : 949 Kbps
Encoded date                     : UTC 2009-03-07 07:02:41.121
Writing application              :  6.0.6000.16386 / Windows Movie Maker
Application                      : Windows Movie Maker 6.0.6000.16386

Video
ID                               : 2
Format                           : VC-1
Format profile                   : MP@ML
Codec ID                         : WMV3
Codec ID/Info                    : Windows Media Video 9
Codec ID/Hint                    : WMV3
Duration                         : 2mn 0s
Bit rate mode                    : Variable
Bit rate                         : 587 Kbps
Width                            : 640 pixels
Height                           : 480 pixels
Display aspect ratio             : 4/3
Frame rate                       : 30.000 fps
Resolution                       : 24 bits
Scan type                        : Progressive
Bits/(Pixel*Frame)               : 0.064
Stream size                      : 8.46 MiB (75%)
Language                         : en-us

Audio
ID                               : 1
Format                           : WMA2
Format profile                   : L3
Codec ID                         : 161
Codec ID/Info                    : Windows Media Audio 2
Description of the codec         : Windows Media Audio 9.2 - VBR Quality 90, 48 kHz, stereo 1-pass VBR
Duration                         : 2mn 0s
Bit rate mode                    : Variable
Bit rate                         : 186 Kbps
Channel(s)                       : 2 channels
Sampling rate                    : 48.0 KHz
Resolution                       : 16 bits
Stream size                      : 2.68 MiB (24%)
Language                         : en-us

i see alot of people with this issue with so solution or cause

any ideas would be helpful thanks in advance

Answer 1

In ffmpeg, options must prefix the input file they relate to. Move -ar 44100 to the front and it will work.