diff options
Diffstat (limited to 'libavfilter/avfiltergraph.c')
-rw-r--r-- | libavfilter/avfiltergraph.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/libavfilter/avfiltergraph.c b/libavfilter/avfiltergraph.c index ccb275c6f9..72c0fd2ca2 100644 --- a/libavfilter/avfiltergraph.c +++ b/libavfilter/avfiltergraph.c @@ -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; |