[FFmpeg-devel] [PATCH] Removed -padtop,right,bottom,left,color options; added comments to ffmpeg doc
Mon Jul 5 00:37:40 CEST 2010
On date Sunday 2010-07-04 15:16:47 -0700, Howard Chu encoded:
> Stefano Sabatini wrote:
> >On date Sunday 2010-07-04 22:45:27 +0200, Michael Niedermayer encoded:
> >>On Sun, Jul 04, 2010 at 01:24:53PM +0200, Stefano Sabatini wrote:
> >>>On date Sunday 2010-07-04 12:53:34 +0200, Stefano Sabatini encoded:
> >>>>As for the pad, check attached. Another possibility would be to retain
> >>>>the -pad option entries, and state that they've been removed, but I
> >>>>prefer somehow this variant.
> >>>Changed my mind again, should save some time to users updating their
> >>>ffmpeg and trying to figure out why their scripts fail. Anyway at some
> >>>point we'll have to remove both -pad* and -crop* options.
> Along the lines of video geometry, I've been wanting to add an
> option to automatically rescale while preserving aspect ratio.
> Unless I missed something obvious, it doesn't appear like there's a
> simple option for this at present.
> E.g., I want to rescale arbitrary videos to fit on the 480x320
> display of my phone. If I only specify the frame size, then videos
> are stretched/distorted to fit that size, losing the aspect ratio. I
> think I can force the aspect ratio so this doesn't happen, but that
> requires that I know the aspect ratio of the input in advance.
> If I have a 4:3 512x384 video, I want it dropped down to e.g.
> 432x320. (Or something...) 16:9 512x288 -> 480x272. Something that's
> already small enough should pass thru unchanged, e.g. 416x224. So
> some kind of "shrink if needed" or "shrink to fit" option. Any
> suggestions on what to call this option?
This can be achieved making parametric the values for the scale and
This should be rather simple to implement (and there is already a
patch for the scale filter), patches for that are welcome.
FFmpeg = Fierce and Fundamentalist Merciless Problematic Elfic Gadget
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