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Implement avfilter_graph_check_validity().

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Originally committed as revision 16809 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Stefano Sabatini
2009-01-26 20:21:25 +00:00
parent e1b6bdbb83
commit 822005ed45
3 changed files with 41 additions and 1 deletions
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libavfilter/avfiltergraph.c
+30
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@@ -46,6 +46,36 @@ int avfilter_graph_add_filter(AVFilterGraph *graph, AVFilterContext *filter)
return 0;
}
int avfilter_graph_check_validity(AVFilterGraph *graph, AVClass *log_ctx)
{
AVFilterContext *filt;
int i, j;
for (i=0; i < graph->filter_count; i++) {
filt = graph->filters[i];
for (j = 0; j < filt->input_count; j++) {
if (!filt->inputs[j] || !filt->inputs[j]->src) {
av_log(log_ctx, AV_LOG_ERROR,
"Input pad \"%s\" for the filter \"%s\" of type \"%s\" not connected to any source\n",
filt->input_pads[j].name, filt->name, filt->filter->name);
return -1;
}
}
for (j = 0; j < filt->output_count; j++) {
if (!filt->outputs[j] || !filt->outputs[j]->dst) {
av_log(log_ctx, AV_LOG_ERROR,
"Output pad \"%s\" for the filter \"%s\" of type \"%s\" not connected to any destination\n",
filt->output_pads[j].name, filt->name, filt->filter->name);
return -1;
}
}
}
return 0;
}
AVFilterContext *avfilter_graph_get_filter(AVFilterGraph *graph, char *name)
{
int i;