* video field order filter, heavily influenced by vf_pad.c
*/
-/* #define DEBUG */
-
#include <stdio.h>
#include <string.h>
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
+#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
typedef struct
{
- unsigned int dst_tff; ///< output bff/tff
+ const AVClass *class;
+ int dst_tff; ///< output bff/tff
int line_size[4]; ///< bytes of pixel data per line for each plane
} FieldOrderContext;
-static av_cold int init(AVFilterContext *ctx, const char *args)
-{
- FieldOrderContext *fieldorder = ctx->priv;
-
- const char *tff = "tff";
- const char *bff = "bff";
-
- if (!args) {
- fieldorder->dst_tff = 1;
- } else if (sscanf(args, "%u", &fieldorder->dst_tff) == 1) {
- fieldorder->dst_tff = !!fieldorder->dst_tff;
- } else if (!strcmp(tff, args)) {
- fieldorder->dst_tff = 1;
- } else if (!strcmp(bff, args)) {
- fieldorder->dst_tff = 0;
- } else {
- av_log(ctx, AV_LOG_ERROR, "Invalid argument '%s'.\n", args);
- return AVERROR(EINVAL);
- }
-
- av_log(ctx, AV_LOG_VERBOSE, "output field order: %s\n",
- fieldorder->dst_tff ? tff : bff);
-
- return 0;
-}
-
static int query_formats(AVFilterContext *ctx)
{
AVFilterFormats *formats;
formats = NULL;
for (pix_fmt = 0; pix_fmt < AV_PIX_FMT_NB; pix_fmt++) {
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
- if (!(desc->flags & PIX_FMT_HWACCEL ||
- desc->flags & PIX_FMT_BITSTREAM) &&
+ if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL ||
+ desc->flags & AV_PIX_FMT_FLAG_BITSTREAM) &&
desc->nb_components && !desc->log2_chroma_h &&
(ret = ff_add_format(&formats, pix_fmt)) < 0) {
ff_formats_unref(&formats);
return ff_filter_frame(outlink, frame);
}
+#define OFFSET(x) offsetof(FieldOrderContext, x)
+#define FLAGS AV_OPT_FLAG_VIDEO_PARAM
+static const AVOption options[] = {
+ { "order", "output field order", OFFSET(dst_tff), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, FLAGS, "order" },
+ { "bff", "bottom field first", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, .unit = "order" },
+ { "tff", "top field first", 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, .unit = "order" },
+ { NULL },
+};
+
+static const AVClass fieldorder_class = {
+ .class_name = "fieldorder",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
static const AVFilterPad avfilter_vf_fieldorder_inputs[] = {
{
.name = "default",
AVFilter avfilter_vf_fieldorder = {
.name = "fieldorder",
.description = NULL_IF_CONFIG_SMALL("Set the field order."),
- .init = init,
.priv_size = sizeof(FieldOrderContext),
+ .priv_class = &fieldorder_class,
.query_formats = query_formats,
.inputs = avfilter_vf_fieldorder_inputs,
.outputs = avfilter_vf_fieldorder_outputs,