[FFmpeg-user] -an pass 1 option

Tom Evans tevans.uk at googlemail.com
Thu May 10 13:19:41 CEST 2012

On Thu, May 10, 2012 at 12:07 PM, Tarun singhal <tsinghal18 at gmail.com> wrote:
> Actually This option is for audio not, so its obvious that you won't get
> any audio stream in output.
> I suggest try -acodec copy, if you dont want any transcoding to happen with
> audio stream, hence saving time

Please don't top post.

I think the OP's point was that if he is doing 2-pass x264 encoding,
on the first pass he doesn't want to do anything with the audio, just
discard it, and re-encode it/copy it on the second pass, but when he
tries this he ends up with no audio in the second pass.

Of course, he neglected to show command lines or output for either of
the passes, so that is utter speculation.



More information about the ffmpeg-user mailing list