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Date:      Fri, 01 Apr 2016 17:33:03 +0000
From:      bugzilla-noreply@freebsd.org
To:        multimedia@FreeBSD.org
Subject:   maintainer-feedback requested: [Bug 208457] multimedia/ffmpeg: add ZIMG option (-vf zscale)
Message-ID:  <bug-208457-12827-EUusmG4NaP@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-208457-12827@https.bugs.freebsd.org/bugzilla/>
References:  <bug-208457-12827@https.bugs.freebsd.org/bugzilla/>
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Jan Beich <jbeich@FreeBSD.org> has reassigned Bugzilla Automation
<bugzilla@FreeBSD.org>'s request for maintainer-feedback to
multimedia@FreeBSD.org:
Bug 208457: multimedia/ffmpeg: add ZIMG option (-vf zscale)
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=208457



--- Description ---
Created attachment 168876
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=168876&action=edit
v0

>From ffmpeg-filters(1) manpage:

   zscale
       Scale (resize) the input video, using the z.lib library:
       https://github.com/sekrit-twc/zimg.

       The zscale filter forces the output display aspect ratio to be the same
       as the input, by changing the output sample aspect ratio.

       If the input image format is different from the format requested by the
       next filter, the zscale filter will convert the input to the requested
       format.

Basic testing:

  $ ffmpeg -i /path/to/foo.mp4 -vf zscale=w=320:h=-1 bar.mp4
  $ mpv -vf lavfi='"zscale=w=320:h=-1"' /path/to/foo.mp4
help

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