[FFmpeg-user] New user want to use ffmpeg in asp.net

[Martín Capón Borreggo]

 Hi all:
 
I am new. Want to use ffmpeg in asp.net
 
I downloaded the ffmpeg. I want to use html5 audio and video tags 
 
I do ffmpeg -i ejemplo.avi ejemplo.mp4 in order to convert my 520 mb ejemplo.avi file into mp4.
 
ejemplo.mp4 is created with 0 bytes.
 
I get an error 'unsupported code for stream #0.0'
 
Can u help me?
 
TIA