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vf_scale: support named constants for sws flags.

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This commit is contained in:
Anton Khirnov 2012-04-09 06:05:50 +02:00
parent 7c59b5c2a5
commit 90f65dc6cf
1 changed files with 10 additions and 1 deletions
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11
libavfilter/vf_scale.c
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@ -27,6 +27,7 @@
#include "libavutil/avstring.h"
#include "libavutil/eval.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libswscale/swscale.h"
@ -91,7 +92,15 @@ static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
if (args) {
sscanf(args, "%255[^:]:%255[^:]", scale->w_expr, scale->h_expr);
p = strstr(args,"flags=");
if (p) scale->flags = strtoul(p+6, NULL, 0);
if (p) {
const AVClass *class = sws_get_class();
const AVOption *o = av_opt_find(&class, "sws_flags", NULL, 0,
AV_OPT_SEARCH_FAKE_OBJ);
int ret = av_opt_eval_flags(&class, o, p + 6, &scale->flags);
if (ret < 0)
return ret;
}
}
return 0;