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lavfi/idet: support named parameters. 

The parameters are currently not documented in doc/filters.texi, but now
they at least appear in the automatic help.
This commit is contained in:
Clément Bœsch 2012-12-26 02:47:25 +01:00
parent 915d7487d7
commit 43cbd4406e
1 changed files with 22 additions and 4 deletions
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26
libavfilter/vf_idet.c
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@ -18,8 +18,11 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <float.h> /* FLT_MAX */
#include "libavutil/cpu.h"
#include "libavutil/common.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "internal.h"
@ -37,6 +40,7 @@ typedef enum {
} Type;
typedef struct {
const AVClass *class;
float interlace_threshold;
float progressive_threshold;
@ -54,6 +58,17 @@ typedef struct {
const AVPixFmtDescriptor *csp;
} IDETContext;
#define OFFSET(x) offsetof(IDETContext, x)
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
static const AVOption idet_options[] = {
{ "intl_thres", "set interlacing threshold", OFFSET(interlace_threshold), AV_OPT_TYPE_FLOAT, {.dbl = 1.01}, -1, FLT_MAX, FLAGS },
{ "prog_thres", "set progressive threshold", OFFSET(progressive_threshold), AV_OPT_TYPE_FLOAT, {.dbl = 2.5}, -1, FLT_MAX, FLAGS },
{ NULL }
};
AVFILTER_DEFINE_CLASS(idet);
static const char *type2str(Type type)
{
switch(type) {
@ -262,13 +277,15 @@ static int query_formats(AVFilterContext *ctx)
static av_cold int init(AVFilterContext *ctx, const char *args)
{
IDETContext *idet = ctx->priv;
static const char *shorthand[] = { "intl_thres", "prog_thres", NULL };
int ret;
idet->csp = NULL;
idet->class = &idet_class;
av_opt_set_defaults(idet);
idet->interlace_threshold = 1.01;
idet->progressive_threshold = 2.5;
if (args) sscanf(args, "%f:%f", &idet->interlace_threshold, &idet->progressive_threshold);
if ((ret = av_opt_set_from_string(idet, args, shorthand, "=", ":")) < 0)
return ret;
idet->last_type = UNDETERMINED;
memset(idet->history, UNDETERMINED, HIST_SIZE);
@ -309,4 +326,5 @@ AVFilter avfilter_vf_idet = {
.query_formats = query_formats,
.inputs = idet_inputs,
.outputs = idet_outputs,
.priv_class = &idet_class,
};