[FFmpeg-devel] [PATCH] fftools/ffmpeg_filter: add -autoscale to disable/enable the default scale
Fu, Linjie
linjie.fu at intel.com
Tue Feb 11 14:57:55 EET 2020
> -----Original Message-----
> From: ffmpeg-devel <ffmpeg-devel-bounces at ffmpeg.org> On Behalf Of
> Moritz Barsnick
> Sent: Tuesday, February 11, 2020 19:04
> To: FFmpeg development discussions and patches <ffmpeg-
> devel at ffmpeg.org>
> Subject: Re: [FFmpeg-devel] [PATCH] fftools/ffmpeg_filter: add -autoscale
> to disable/enable the default scale
>
> On Mon, Feb 10, 2020 at 17:27:03 +0800, Linjie Fu wrote:
> > + { "autoscale", HAS_ARG | OPT_BOOL | OPT_SPEC |
> > + OPT_EXPERT | OPT_OUTPUT, { .off =
> OFFSET(autoscale) },
> > + "automatically insert a scale filter at the end of the filter graph if a
> resolution"
> > + "change is detected. This ensures all frames are the same resolution
> as the first frame"
> > + "when they leave the filter chain (this option is enabled by default)."
> > + "If disabled, some encoders/muxers may not support this mode."},
>
> Have you checked the output of "ffmpeg -h"? Your C strings merge
> directly together, and are therefore missing spaces, e.g. in
> "resolutionchange" and "as the first framewhen they leave",
>
Yes, spaces should be added, thanks for pointing this out :).
I'll fix this in next version together with other suggestions if there is any.
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