return -1;
}
+int avfilter_insert_filter(AVFilterLink *link, AVFilterContext *filt,
+ unsigned in, unsigned out)
+{
+ av_log(NULL, AV_LOG_INFO, "auto-inserting filter '%s'\n",
+ filt->filter->name);
+
+ link->dst->inputs[link->dstpad] = NULL;
+ if(avfilter_link(filt, out, link->dst, link->dstpad)) {
+ /* failed to link output filter to new filter */
+ link->dst->inputs[link->dstpad] = link;
+ return -1;
+ }
+
+ /* re-hookup the link to the new destination filter we inserted */
+ link->dst = filt;
+ link->dstpad = in;
+ filt->inputs[in] = link;
+
+ return 0;
+}
+
int avfilter_config_link(AVFilterLink *link)
{
int *fmts[3] = {NULL,NULL,NULL};
avfilter_destroy(scale);
goto format_done;
}
-
- link->dst->inputs[link->dstpad] = NULL;
- if(avfilter_link(scale, 0, link->dst, link->dstpad)) {
- link->dst->inputs[link->dstpad] = link;
+ if(avfilter_insert_filter(link, scale, 0, 0))
goto format_done;
- }
link2 = scale->outputs[0];
- link->dst = scale;
- link->dstpad = 0;
- scale->inputs[0] = link;
/* now try again to find working colorspaces.
* XXX: is it safe to assume that the scale filter always supports the