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vo_opengl: allow setting different filters for downscaling

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wm4
2014-11-14 15:22:37 +01:00
parent 508d236c9a
commit d484cb3f32
3 changed files with 12 additions and 3 deletions
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7
DOCS/man/vo.rst
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@@ -438,12 +438,17 @@ Available video output drivers are:
this options will make rendering a single operation.
Note that chroma scalers are always done as 1-pass filters.
``cscale=<n>``
``cscale=<filter>``
As ``lscale``, but for chroma (2x slower with little visible effect).
Note that with some scaling filters, upscaling is always done in
RGB. If chroma is not subsampled, this option is ignored, and the
luma scaler is used instead. Setting this option is often useless.
``lscale-down=<filter>``, ``cscale-down=<filter>``
Like ``lscale`` and ``cscale``, but apply these filters on downscaling
instead. If these options are unset, the filter implied by ``lscale``
(and ``cscale``, respectively) will be applied.
``cparam1``, ``cparam2``, ``cradius``
Set filter parameters and radius for ``cscale``.

7
video/out/gl_video.c
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@@ -326,6 +326,8 @@ const struct m_sub_options gl_video_conf = {
{"quadbuffer", GL_3D_QUADBUFFER})),
OPT_STRING_VALIDATE("lscale", scalers[0], 0, validate_scaler_opt),
OPT_STRING_VALIDATE("cscale", scalers[1], 0, validate_scaler_opt),
OPT_STRING_VALIDATE("lscale-down", dscalers[0], 0, validate_scaler_opt),
OPT_STRING_VALIDATE("cscale-down", dscalers[1], 0, validate_scaler_opt),
OPT_FLOAT("lparam1", scaler_params[0][0], 0),
OPT_FLOAT("lparam2", scaler_params[0][1], 0),
OPT_FLOAT("cparam1", scaler_params[1][0], 0),
@@ -1263,6 +1265,8 @@ static const char *expected_scaler(struct gl_video *p, int unit)
{
return "bilinear";
}
if (p->opts.dscalers[unit] && get_scale_factor(p) < 1.0)
return p->opts.dscalers[unit];
return p->opts.scalers[unit];
}
@@ -2386,8 +2390,7 @@ void gl_video_set_options(struct gl_video *p, struct gl_video_opts *opts)
p->opts = *opts;
for (int n = 0; n < 2; n++) {
p->opts.scalers[n] = (char *)handle_scaler_opt(p->opts.scalers[n]);
assert(p->opts.scalers[n]);
p->scalers[n].name = p->opts.scalers[n];
p->opts.dscalers[n] = (char *)handle_scaler_opt(p->opts.dscalers[n]);
}
if (!p->opts.gamma && p->video_eq.values[MP_CSP_EQ_GAMMA] != 0)

1
video/out/gl_video.h
View File

@@ -29,6 +29,7 @@ struct lut3d {
struct gl_video_opts {
char *scalers[2];
char *dscalers[2];
float scaler_params[2][2];
float scaler_radius[2];
int indirect;