Changes between Version 41 and Version 42 of Scaling

Timestamp:

May 4, 2024, 9:30:58 PM (2 years ago)

Author:

MasterQuestionable

Comment:

Clarification.

Scaling

@@ -26 +26 @@
   The above example is highly misleading because `setsar=1:1` is equivalent to `setsar=r=1:max=1`. In this special case it accidentally gives the correct result SAR=1:1, but for example `setsar=2:3` would give the wrong result SAR=2:1. The correct syntax for SAR=2:3 is `setsar=2/3`, or `setsar=1` for the above example.
 
-* When going from BGR (not RGB) to yuv420p the conversion is broken (off-by-one). Use -vf scale=flags=accurate_rnd to fix that.
-* yuvjxxxp pixel formats are deprecated. Yet for x265 the workaround was implemented, but not for jpeg2000 and AV1. For those -vf scale=out_range=pc should be used.
+* When going from BGR (not RGB) to yuv420p the conversion may be off-by-one. Use "-sws_flags +accurate_rnd" alike to avoid.
+* yuvj!***p pixel formats are deprecated. Yet for x265 the workaround was implemented, but not for jpeg2000 and AV1. For those -vf scale=out_range=pc should be used.
 * Conversion from YUV limited to RGB 16bpc (bit-per-component) is broken: use "zscale" instead of "swscale".
-* Limited range RGB is not supported at all.
-* Dither can be turned off using -vf scale=sws_dither=none
+* Limited range RGB is outright unsupported.
+* Dither can be forced off using "-sws_dither none". (or temporary workaround !`-lavfi "scale=sws_dither=none"` alike)
 * Remember YUV 4:4:4 8bpc wouldn't suffice to preserve RGB 8bpc: 10bpc is required.
-* The default for matrix in untagged input and output is always limited BT.601 [ See also: <[/wiki/colorspace colorspace]> ]
+* The default matrix for untagged input/output would be limited BT.601. [ See also: <[/wiki/colorspace colorspace]> ]
 }}}