[FFmpeg-user] Can't convert WMV to FLV (no sound needed)

[Lou]

On Wed, 07 Dec 2011 03:30:33 -0800
Giordon Stark <kratsg at gmail.com> wrote:

> Terminal Output below.
> 
> File is a .wmv generated from Logitech Webcam Pro video capturing. 
> ffmpeg outputs a blank flv video file. The input file is about 3-4 
> seconds long. I've also tried all variations from googling such as 
> -vcodec flags and stuff. Seems like something's missing.
> 
> Thanks!
> 
> ~G

Does ffplay or anything else play the input as expected? Can you upload
the input somewhere (datafilehost, mediafire, your own server, etc.)?
By "blank" do you mean just all black video? Does a different output
format also create a blank output?

ffmpeg -i input.wmv out.mpg

> C:\ >ffmpeg -i "Motion 9.wmv" Motion9.flv
> ffmpeg version N-35462-g61b1d85, Copyright (c) 2000-2011 the FFmpeg 
> developers
>    built on Dec  5 2011 14:28:46 with gcc 4.6.2
>    configuration: --enable-gpl --enable-version3 --disable-w32threads 
> --enable-ru
> ntime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r 
> --enable-libope
> ncore-amrnb --enable-libopencore-amrwb --enable-libfreetype 
> --enable-libgsm --en
> able-libmp3lame --enable-libopenjpeg --enable-librtmp 
> --enable-libschroedinger -
> -enable-libspeex --enable-libtheora --enable-libvo-aacenc 
> --enable-libvo-amrwben
> c --enable-libvorbis --enable-libvpx --enable-libx264
> --enable-libxavs --enable-
> libxvid --enable-zlib
>    libavutil    51. 30. 0 / 51. 30. 0
>    libavcodec   53. 40. 0 / 53. 40. 0
>    libavformat  53. 24. 0 / 53. 24. 0
>    libavdevice  53.  4. 0 / 53.  4. 0
>    libavfilter   2. 51. 0 /  2. 51. 0
>    libswscale    2.  1. 0 /  2.  1. 0
>    libpostproc  51.  2. 0 / 51.  2. 0
> 
> Seems stream 0 codec frame rate differs from container frame rate: 
> 1000.00 (1000
> /1) -> 0.08 (1/12)
> Input #0, asf, from 'Motion 9.wmv':
>    Metadata:
>      WMFSDKVersion   : 12.0.7600.16385
>      WMFSDKNeeded    : 0.0.0.0000
>      IsVBR           : 1
>      VBR Peak        : 1706
>      Buffer Average  : 200
>      BadgeData       : <?xml version='1.0' encoding='UTF-8'?>
> <!DOCTYPE BadgeDataDoc>
> <applicaitons>
> <applicaiton id="{6F9D29D2-F2E2-4124-92B9-BD0BE98DEA58}">
> <url>self</url>
> </applicaiton>
> </applicaitons>

^ What is this stuff?