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Code Issues Releases Activity

avfilter/vf_setparams: use YUV colorspace negotiation API

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When this filter overrides frame properties, the outgoing frames have
a different YUV colorspace than the incoming ones. This requires
signalling the new colorspace on the outlink, and in particular, making
sure it's *not* set to a common ref with the input - otherwise the point
of this filter would be destroyed.

Untouched fields will continue being passed through, so we don't need to
do anything there.
This commit is contained in:
Niklas Haas 2024-02-10 11:54:57 +01:00
parent aa3bf6d41c
commit 3bf80df3cc
1 changed files with 26 additions and 0 deletions
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26
libavfilter/vf_setparams.c
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@ -23,6 +23,7 @@
#include "libavutil/pixfmt.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"
@ -120,6 +121,29 @@ static const AVOption setparams_options[] = {
AVFILTER_DEFINE_CLASS(setparams);
static int query_formats(AVFilterContext *ctx)
{
SetParamsContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
int ret;
if (s->colorspace >= 0) {
ret = ff_formats_ref(ff_make_formats_list_singleton(s->colorspace),
&outlink->incfg.color_spaces);
if (ret < 0)
return ret;
}
if (s->color_range >= 0) {
ret = ff_formats_ref(ff_make_formats_list_singleton(s->color_range),
&outlink->incfg.color_ranges);
if (ret < 0)
return ret;
}
return 0;
}
static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
{
AVFilterContext *ctx = inlink->dst;
@ -177,6 +201,7 @@ const AVFilter ff_vf_setparams = {
.flags = AVFILTER_FLAG_METADATA_ONLY,
FILTER_INPUTS(inputs),
FILTER_OUTPUTS(ff_video_default_filterpad),
FILTER_QUERY_FUNC(query_formats),
};
#if CONFIG_SETRANGE_FILTER
@ -217,6 +242,7 @@ const AVFilter ff_vf_setrange = {
.flags = AVFILTER_FLAG_METADATA_ONLY,
FILTER_INPUTS(inputs),
FILTER_OUTPUTS(ff_video_default_filterpad),
FILTER_QUERY_FUNC(query_formats),
};
#endif /* CONFIG_SETRANGE_FILTER */