Linjie Fu (12019-07-16):
> Add docs for autoscale.
>
> Update information for autorotate according to ffplay.
>
> Signed-off-by: Linjie Fu <linjie...@intel.com>
> ---
> doc/ffmpeg.texi | 14 ++++++++++----
> 1 file changed, 10 insertions(+), 4 deletions(-)
>
> diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi
> index cd35eb49c8..b91da2b2b4 100644
> --- a/doc/ffmpeg.texi
> +++ b/doc/ffmpeg.texi
> @@ -734,10 +734,6 @@ ffmpeg -dump_attachment:t "" -i INPUT
> Technical note -- attachments are implemented as codec extradata, so this
> option can actually be used to extract extradata from any stream, not just
> attachments.
> -
> -@item -noautorotate
> -Disable automatically rotating video based on file metadata.
> -
> @end table
>
> @section Video Options
> @@ -819,6 +815,16 @@ Create the filtergraph specified by @var{filtergraph}
> and use it to
> filter the stream.
>
> This is an alias for @code{-filter:v}, see the @ref{filter_option,,-filter
> option}.
> +
> +@item -autorotate
> +Automatically rotate the video according to file metadata. Enabled by
> +default, use @option{-noautorotate} to disable it.
> +
> +@item -autoscale
> +Automatically scale the video according to the resolution of first frame.
> +Enabled by default, use @option{-noautoscale} to disable it. Each frame of
> +the output raw video can be in different resolutions and is in need to be
> +handled next.
Since this is completely hackish in lavfi, I think it needs to warn the
user much more strongly to expect problems.
> @end table
>
> @section Advanced Video options
Regards,
--
Nicolas George
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