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

[dE .]

On 12/07/11 17:00, Giordon Stark 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
>
> 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>
>
>   Duration: 00:00:03.60, start: 0.000000, bitrate: 4842 kb/s
>     Stream #0:0: Video: wmv2 (WMV2 / 0x32564D57), yuv420p, 800x600, 
> 2421 kb/s, 0
> .08 tbr, 1k tbn, 1k tbc
> [buffer @ 0000000001C20640] w:800 h:600 pixfmt:yuv420p tb:1/1000000 
> sar:0/1 sws_
> param:
> Output #0, flv, to 'Motion9.flv':
>   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>
>
>     encoder         : Lavf53.24.0
>     Stream #0:0: Video: flv1 ([2][0][0][0] / 0x0002), yuv420p, 
> 800x600, q=2-31,
> 200 kb/s, 1k tbn, 0.08 tbc
> Stream mapping:
>   Stream #0:0 -> #0:0 (wmv2 -> flv)
> Press [q] to stop, [?] for help
> frame=    1 fps=  0 q=5.9 Lsize=      35kB time=00:00:12.00 bitrate=  
> 24.2kbits/
> s dup=0 drop=106
> video:35kB audio:0kB global headers:0kB muxing overhead 1.499874%
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Sounds like logitech generates some Windows propitiatory crap designed 
for 'Windows 7' and meant to be played on WMP.