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avfilter/vf_zscale: export approximate gamma option and enable it by default 

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2016-11-27 11:43:54 +01:00
parent a06e84b56e
commit 4719e563a4
1 changed files with 3 additions and 0 deletions
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3
libavfilter/vf_zscale.c
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@ -97,6 +97,7 @@ typedef struct ZScaleContext {
int chromal_in;
char *size_str;
double nominal_peak_luminance;
int approximate_gamma;
char *w_expr; ///< width expression string
char *h_expr; ///< height expression string
@ -480,6 +481,7 @@ static int filter_frame(AVFilterLink *link, AVFrame *in)
s->params.resample_filter = s->filter;
s->params.resample_filter_uv = s->filter;
s->params.nominal_peak_luminance = s->nominal_peak_luminance;
s->params.allow_approximate_gamma = s->approximate_gamma;
s->src_format.width = in->width;
s->src_format.height = in->height;
@ -762,6 +764,7 @@ static const AVOption zscale_options[] = {
{ "chromalin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
{ "cin", "set input chroma location", OFFSET(chromal_in), AV_OPT_TYPE_INT, {.i64 = -1}, -1, ZIMG_CHROMA_BOTTOM, FLAGS, "chroma" },
{ "npl", "set nominal peak luminance", OFFSET(nominal_peak_luminance), AV_OPT_TYPE_DOUBLE, {.dbl = NAN}, 0, DBL_MAX, FLAGS },
{ "agamma", "allow approximate gamma", OFFSET(approximate_gamma), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, FLAGS },
{ NULL }
};