[FFmpeg-user] Conversion to mp4 container

Andrew Berg bahamutzero8825 at gmail.com
Fri Apr 29 09:06:55 CEST 2011

On 2011.04.29 01:46 AM, Ankuj Gupta wrote:
> ffmpeg -i test043.avi -vcodec copy -an test043.avi.mp4
> I am assuming that it will use the same codec for video as it is present in
> the mpeg4 file. Is my assumption correct or first ffmpeg will decode it and
> then re encode it again ?
If you tell FFmpeg to copy the video stream, it will do so. FFmpeg can't
reencode if you don't specify a codec anyway (it wouldn't know what to do).

More information about the ffmpeg-user mailing list