"vsub",
"ohsub",
"ovsub",
+ "n",
+ "t",
+ "pos",
"main_w",
"main_h",
"main_a",
"main_dar", "mdar",
"main_hsub",
"main_vsub",
+ "main_n",
+ "main_t",
+ "main_pos",
NULL
};
VAR_VSUB,
VAR_OHSUB,
VAR_OVSUB,
+ VAR_N,
+ VAR_T,
+ VAR_POS,
VAR_S2R_MAIN_W,
VAR_S2R_MAIN_H,
VAR_S2R_MAIN_A,
VAR_S2R_MAIN_DAR, VAR_S2R_MDAR,
VAR_S2R_MAIN_HSUB,
VAR_S2R_MAIN_VSUB,
+ VAR_S2R_MAIN_N,
+ VAR_S2R_MAIN_T,
+ VAR_S2R_MAIN_POS,
VARS_NB
};
if ((vars_w[VAR_OUT_H] || vars_w[VAR_OH]) &&
(vars_h[VAR_OUT_W] || vars_h[VAR_OW])) {
- av_log(ctx, AV_LOG_ERROR, "Circular expressions invalid for width '%s' and height '%s'.\n", scale->w_expr, scale->h_expr);
- return AVERROR(EINVAL);
+ av_log(ctx, AV_LOG_WARNING, "Circular references detected for width '%s' and height '%s' - possibly invalid.\n", scale->w_expr, scale->h_expr);
}
if (ctx->filter != &ff_vf_scale2ref &&
vars_w[VAR_S2R_MAIN_DAR] || vars_h[VAR_S2R_MAIN_DAR] ||
vars_w[VAR_S2R_MDAR] || vars_h[VAR_S2R_MDAR] ||
vars_w[VAR_S2R_MAIN_HSUB] || vars_h[VAR_S2R_MAIN_HSUB] ||
- vars_w[VAR_S2R_MAIN_VSUB] || vars_h[VAR_S2R_MAIN_VSUB]) ) {
+ vars_w[VAR_S2R_MAIN_VSUB] || vars_h[VAR_S2R_MAIN_VSUB] ||
+ vars_w[VAR_S2R_MAIN_N] || vars_h[VAR_S2R_MAIN_N] ||
+ vars_w[VAR_S2R_MAIN_T] || vars_h[VAR_S2R_MAIN_T] ||
+ vars_w[VAR_S2R_MAIN_POS] || vars_h[VAR_S2R_MAIN_POS]) ) {
av_log(ctx, AV_LOG_ERROR, "Expressions with scale2ref variables are not valid in scale filter.\n");
return AVERROR(EINVAL);
}
+ if (scale->eval_mode == EVAL_MODE_INIT &&
+ (vars_w[VAR_N] || vars_h[VAR_N] ||
+ vars_w[VAR_T] || vars_h[VAR_T] ||
+ vars_w[VAR_POS] || vars_h[VAR_POS] ||
+ vars_w[VAR_S2R_MAIN_N] || vars_h[VAR_S2R_MAIN_N] ||
+ vars_w[VAR_S2R_MAIN_T] || vars_h[VAR_S2R_MAIN_T] ||
+ vars_w[VAR_S2R_MAIN_POS] || vars_h[VAR_S2R_MAIN_POS]) ) {
+ av_log(ctx, AV_LOG_ERROR, "Expressions with frame variables 'n', 't', 'pos' are not valid in init eval_mode.\n");
+ return AVERROR(EINVAL);
+ }
+
return 0;
}
return ret;
}
}
- if ((ret = ff_formats_ref(formats, &ctx->inputs[0]->out_formats)) < 0)
+ if ((ret = ff_formats_ref(formats, &ctx->inputs[0]->outcfg.formats)) < 0)
return ret;
}
if (ctx->outputs[0]) {
return ret;
}
}
- if ((ret = ff_formats_ref(formats, &ctx->outputs[0]->in_formats)) < 0)
+ if ((ret = ff_formats_ref(formats, &ctx->outputs[0]->incfg.formats)) < 0)
return ret;
}
in->sample_aspect_ratio.den != link->sample_aspect_ratio.den ||
in->sample_aspect_ratio.num != link->sample_aspect_ratio.num;
- if (frame_changed ||
- (scale->eval_mode == EVAL_MODE_FRAME &&
- ctx->filter == &ff_vf_scale2ref) ) {
+ if (scale->eval_mode == EVAL_MODE_FRAME || frame_changed) {
int ret;
+ unsigned vars_w[VARS_NB] = { 0 }, vars_h[VARS_NB] = { 0 };
+
+ av_expr_count_vars(scale->w_pexpr, vars_w, VARS_NB);
+ av_expr_count_vars(scale->h_pexpr, vars_h, VARS_NB);
+
+ if (scale->eval_mode == EVAL_MODE_FRAME &&
+ !frame_changed &&
+ ctx->filter != &ff_vf_scale2ref &&
+ !(vars_w[VAR_N] || vars_w[VAR_T] || vars_w[VAR_POS]) &&
+ !(vars_h[VAR_N] || vars_h[VAR_T] || vars_h[VAR_POS]) &&
+ scale->w && scale->h)
+ goto scale;
if (scale->eval_mode == EVAL_MODE_INIT) {
snprintf(buf, sizeof(buf)-1, "%d", outlink->w);
return ret;
}
+ if (ctx->filter == &ff_vf_scale2ref) {
+ scale->var_values[VAR_S2R_MAIN_N] = link->frame_count_out;
+ scale->var_values[VAR_S2R_MAIN_T] = TS2T(in->pts, link->time_base);
+ scale->var_values[VAR_S2R_MAIN_POS] = in->pkt_pos == -1 ? NAN : in->pkt_pos;
+ } else {
+ scale->var_values[VAR_N] = link->frame_count_out;
+ scale->var_values[VAR_T] = TS2T(in->pts, link->time_base);
+ scale->var_values[VAR_POS] = in->pkt_pos == -1 ? NAN : in->pkt_pos;
+ }
+
link->dst->inputs[0]->format = in->format;
link->dst->inputs[0]->w = in->width;
link->dst->inputs[0]->h = in->height;
return ret;
}
+scale:
if (!scale->sws) {
*frame_out = in;
return 0;
static int filter_frame_ref(AVFilterLink *link, AVFrame *in)
{
+ ScaleContext *scale = link->dst->priv;
AVFilterLink *outlink = link->dst->outputs[1];
int frame_changed;
config_props_ref(outlink);
}
+ if (scale->eval_mode == EVAL_MODE_FRAME) {
+ scale->var_values[VAR_N] = link->frame_count_out;
+ scale->var_values[VAR_T] = TS2T(in->pts, link->time_base);
+ scale->var_values[VAR_POS] = in->pkt_pos == -1 ? NAN : in->pkt_pos;
+ }
+
return ff_filter_frame(outlink, in);
}
return ret;
}
+#if FF_API_CHILD_CLASS_NEXT
static const AVClass *child_class_next(const AVClass *prev)
{
return prev ? NULL : sws_get_class();
}
+#endif
+
+static const AVClass *child_class_iterate(void **iter)
+{
+ const AVClass *c = *iter ? NULL : sws_get_class();
+ *iter = (void*)(uintptr_t)c;
+ return c;
+}
#define OFFSET(x) offsetof(ScaleContext, x)
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
.option = scale_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
+#if FF_API_CHILD_CLASS_NEXT
.child_class_next = child_class_next,
+#endif
+ .child_class_iterate = child_class_iterate,
};
static const AVFilterPad avfilter_vf_scale_inputs[] = {
.option = scale_options,
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
+#if FF_API_CHILD_CLASS_NEXT
.child_class_next = child_class_next,
+#endif
+ .child_class_iterate = child_class_iterate,
};
static const AVFilterPad avfilter_vf_scale2ref_inputs[] = {