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avfilter/vf_setparams: allow setting chroma location

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Shockingly, there isn't currently _any_ filter for overriding this.
This commit is contained in:
Niklas Haas 2024-07-04 12:52:08 +02:00
parent 3e064f52eb
commit 201f1cba15
2 changed files with 33 additions and 3 deletions
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17
doc/filters.texi
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@ -22073,6 +22073,23 @@ Keep the same colorspace property (default).
@item chroma-derived-c
@item ictcp
@end table
@item chroma_location
Set the chroma sample location.
Available values are:
@table @samp
@item auto
Keep the same chroma location (default).
@item unspecified, unknown
@item left
@item center
@item topleft
@item top
@item bottomleft
@item bottom
@end table
@end table
@section sharpen_npp

19
libavfilter/vf_setparams.c
View File

@ -41,6 +41,7 @@ typedef struct SetParamsContext {
int color_primaries;
int color_trc;
int colorspace;
int chroma_location;
} SetParamsContext;
#define OFFSET(x) offsetof(SetParamsContext, x)
@ -119,6 +120,17 @@ static const AVOption setparams_options[] = {
{"chroma-derived-c", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_SPC_CHROMA_DERIVED_CL}, INT_MIN, INT_MAX, FLAGS, .unit = "colorspace"},
{"ictcp", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_SPC_ICTCP}, INT_MIN, INT_MAX, FLAGS, .unit = "colorspace"},
{"ipt-c2", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_SPC_IPT_C2}, INT_MIN, INT_MAX, FLAGS, .unit = "colorspace"},
{"chroma_location", "select chroma sample location", OFFSET(chroma_location), AV_OPT_TYPE_INT, {.i64=-1}, -1, AVCHROMA_LOC_NB-1, FLAGS, .unit = "chroma_location"},
{"auto", "keep the same chroma location", 0, AV_OPT_TYPE_CONST, {.i64=-1}, 0, 0, FLAGS, .unit = "chroma_location"},
{"unspecified", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCHROMA_LOC_UNSPECIFIED}, 0, 0, FLAGS, .unit = "chroma_location"},
{"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCHROMA_LOC_UNSPECIFIED}, 0, 0, FLAGS, .unit = "chroma_location"},
{"left", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCHROMA_LOC_LEFT}, 0, 0, FLAGS, .unit = "chroma_location"},
{"center", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCHROMA_LOC_CENTER}, 0, 0, FLAGS, .unit = "chroma_location"},
{"topleft", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCHROMA_LOC_TOPLEFT}, 0, 0, FLAGS, .unit = "chroma_location"},
{"top", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCHROMA_LOC_TOP}, 0, 0, FLAGS, .unit = "chroma_location"},
{"bottomleft", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCHROMA_LOC_BOTTOMLEFT}, 0, 0, FLAGS, .unit = "chroma_location"},
{"bottom", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCHROMA_LOC_BOTTOM}, 0, 0, FLAGS, .unit = "chroma_location"},
{NULL}
};
@ -174,17 +186,18 @@ FF_ENABLE_DEPRECATION_WARNINGS
frame->flags &= ~AV_FRAME_FLAG_TOP_FIELD_FIRST;
}
/* set range */
/* set straightforward parameters */
if (s->color_range >= 0)
frame->color_range = s->color_range;
/* set color prim, trc, space */
if (s->color_primaries >= 0)
frame->color_primaries = s->color_primaries;
if (s->color_trc >= 0)
frame->color_trc = s->color_trc;
if (s->colorspace >= 0)
frame->colorspace = s->colorspace;
if (s->chroma_location >= 0)
frame->chroma_location = s->chroma_location;
return ff_filter_frame(ctx->outputs[0], frame);
}