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avfilter: dont crash on filters with NULL instance names. 

Found-by: Rolf Siegrist
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-09-06 22:16:26 +02:00
parent 2fd4901921
commit c0323b9c9b
1 changed files with 1 additions and 1 deletions
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2
libavfilter/avfiltergraph.c
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@ -272,7 +272,7 @@ int avfilter_graph_send_command(AVFilterGraph *graph, const char *target, const
for (i = 0; i < graph->filter_count; i++) {
AVFilterContext *filter = graph->filters[i];
if(!strcmp(target, "all") || !strcmp(target, filter->name) || !strcmp(target, filter->filter->name)){
if(!strcmp(target, "all") || (filter->name && !strcmp(target, filter->name)) || !strcmp(target, filter->filter->name)){
r = avfilter_process_command(filter, cmd, arg, res, res_len, flags);
if(r != AVERROR(ENOSYS)) {
if((flags & AVFILTER_CMD_FLAG_ONE) || r<0)