@item hsub
@item vsub
-horizontal and vertical chroma subsample values. For example for the
+horizontal and vertical input chroma subsample values. For example for the
+pixel format "yuv422p" @var{hsub} is 2 and @var{vsub} is 1.
+
+@item ohsub
+@item ovsub
+horizontal and vertical output chroma subsample values. For example for the
pixel format "yuv422p" @var{hsub} is 2 and @var{vsub} is 1.
@end table
#define LIBAVFILTER_VERSION_MAJOR 3
#define LIBAVFILTER_VERSION_MINOR 90
-#define LIBAVFILTER_VERSION_MICRO 100
+#define LIBAVFILTER_VERSION_MICRO 101
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
LIBAVFILTER_VERSION_MINOR, \
"dar",
"hsub",
"vsub",
+ "ohsub",
+ "ovsub",
NULL
};
VAR_DAR,
VAR_HSUB,
VAR_VSUB,
+ VAR_OHSUB,
+ VAR_OVSUB,
VARS_NB
};
enum AVPixelFormat outfmt = outlink->format;
ScaleContext *scale = ctx->priv;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
+ const AVPixFmtDescriptor *out_desc = av_pix_fmt_desc_get(outlink->format);
int64_t w, h;
double var_values[VARS_NB], res;
char *expr;
var_values[VAR_DAR] = var_values[VAR_A] * var_values[VAR_SAR];
var_values[VAR_HSUB] = 1 << desc->log2_chroma_w;
var_values[VAR_VSUB] = 1 << desc->log2_chroma_h;
+ var_values[VAR_OHSUB] = 1 << out_desc->log2_chroma_w;
+ var_values[VAR_OVSUB] = 1 << out_desc->log2_chroma_h;
/* evaluate width and height */
av_expr_parse_and_eval(&res, (expr = scale->w_expr),