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avfilter/vf_libplacebo: default to normalize_sar=0

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As a result of a typo in the source code, this option was completely
non-functional. In order to fix it, without breaking the current default
behavior, explicitly change this default to 0.

This behavior is also consistent with how other scale filters behave by
default, so it's probably best to enshrine it anyways.
This commit is contained in:
Niklas Haas
2022-11-18 14:56:03 +01:00
parent 3bcec58535
commit 05d390890a
3 changed files with 6 additions and 5 deletions
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7
doc/filters.texi
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@@ -15587,9 +15587,10 @@ will be performed.
Work the same as the identical @ref{scale} filter options.
@item normalize_sar
If enabled (the default), output frames will always have a pixel aspect ratio
of 1:1. If disabled, any aspect ratio mismatches, including those from e.g.
anamorphic video sources, are forwarded to the output pixel aspect ratio.
If enabled, output frames will always have a pixel aspect ratio of 1:1. This
will introduce padding/cropping as necessary. If disabled (the default), any
aspect ratio mismatches, including those from e.g. anamorphic video sources,
are forwarded to the output pixel aspect ratio.
@item pad_crop_ratio
Specifies a ratio (between @code{0.0} and @code{1.0}) between padding and

2
libavfilter/version.h
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@@ -32,7 +32,7 @@
#include "version_major.h"
#define LIBAVFILTER_VERSION_MINOR 50
#define LIBAVFILTER_VERSION_MICRO 100
#define LIBAVFILTER_VERSION_MICRO 101
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \

2
libavfilter/vf_libplacebo.c
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@@ -632,7 +632,7 @@ static const AVOption libplacebo_options[] = {
{ "decrease", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 1 }, 0, 0, STATIC, "force_oar" },
{ "increase", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 2 }, 0, 0, STATIC, "force_oar" },
{ "force_divisible_by", "enforce that the output resolution is divisible by a defined integer when force_original_aspect_ratio is used", OFFSET(force_divisible_by), AV_OPT_TYPE_INT, { .i64 = 1 }, 1, 256, STATIC },
{ "normalize_sar", "force SAR normalization to 1:1", OFFSET(normalize_sar), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, STATIC },
{ "normalize_sar", "force SAR normalization to 1:1", OFFSET(normalize_sar), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, STATIC },
{ "pad_crop_ratio", "ratio between padding and cropping when normalizing SAR (0=pad, 1=crop)", OFFSET(pad_crop_ratio), AV_OPT_TYPE_FLOAT, {.dbl=0.0}, 0.0, 1.0, DYNAMIC },
{"colorspace", "select colorspace", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64=-1}, -1, AVCOL_SPC_NB-1, DYNAMIC, "colorspace"},