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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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2
libavfilter/avfilter.h
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@ -23,7 +23,7 @@
#define AVFILTER_AVFILTER_H
#define LIBAVFILTER_VERSION_MAJOR 0
#define LIBAVFILTER_VERSION_MINOR 2
#define LIBAVFILTER_VERSION_MINOR 3
#define LIBAVFILTER_VERSION_MICRO 0
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \

30
libavfilter/avfiltergraph.c
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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;

10
libavfilter/avfiltergraph.h
View File

@ -44,6 +44,16 @@ AVFilterContext *avfilter_graph_get_filter(AVFilterGraph *graph, char *name);
*/
int avfilter_graph_add_filter(AVFilterGraph *graphctx, AVFilterContext *filter);
/**
* Check for the validity of \p graph.
*
* A graph is considered valid if all its input and output pads are
* connected.
*
* @return 0 in case of success, a negative value otherwise
*/
int avfilter_graph_check_validity(AVFilterGraph *graphctx, AVClass *log_ctx);
/**
* Configure the formats of all the links in the graph.
*/