#include "avfilter.h"
+enum SetFieldMode {
+ MODE_AUTO = -1,
+ MODE_BFF,
+ MODE_TFF,
+ MODE_PROG,
+};
+
typedef struct {
- int top_field_first;
+ enum SetFieldMode mode;
} SetFieldContext;
static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
{
SetFieldContext *setfield = ctx->priv;
- setfield->top_field_first = -1;
+ setfield->mode = MODE_AUTO;
if (args) {
char c;
- if (sscanf(args, "%d%c", &setfield->top_field_first, &c) != 1) {
- if (!strcmp("tff", args)) setfield->top_field_first = 1;
- else if (!strcmp("bff", args)) setfield->top_field_first = 0;
- else if (!strcmp("auto", args)) setfield->top_field_first = -1;
+ if (sscanf(args, "%d%c", &setfield->mode, &c) != 1) {
+ if (!strcmp("tff", args)) setfield->mode = MODE_TFF;
+ else if (!strcmp("bff", args)) setfield->mode = MODE_BFF;
+ else if (!strcmp("prog", args)) setfield->mode = MODE_PROG;
+ else if (!strcmp("auto", args)) setfield->mode = MODE_AUTO;
else {
av_log(ctx, AV_LOG_ERROR, "Invalid argument '%s'\n", args);
return AVERROR(EINVAL);
}
+ } else {
+ if (setfield->mode < -1 || setfield->mode > 1) {
+ av_log(ctx, AV_LOG_ERROR,
+ "Provided integer value %d must be included between -1 and +1\n",
+ setfield->mode);
+ return AVERROR(EINVAL);
+ }
+ av_log(ctx, AV_LOG_WARNING,
+ "Using -1/0/1 is deprecated, use auto/tff/bff/prog\n");
}
}
- if (setfield->top_field_first < -1 || setfield->top_field_first > 1) {
- av_log(ctx, AV_LOG_ERROR,
- "Provided integer value %d must be included between -1 and +1\n",
- setfield->top_field_first);
- return AVERROR(EINVAL);
- }
-
return 0;
}
SetFieldContext *setfield = inlink->dst->priv;
AVFilterBufferRef *outpicref = avfilter_ref_buffer(inpicref, ~0);
- if (setfield->top_field_first != -1) {
+ if (setfield->mode == MODE_PROG) {
+ outpicref->video->interlaced = 0;
+ } else if (setfield->mode != MODE_AUTO) {
outpicref->video->interlaced = 1;
- outpicref->video->top_field_first = setfield->top_field_first;
+ outpicref->video->top_field_first = setfield->mode;
}
avfilter_start_frame(inlink->dst->outputs[0], outpicref);
}