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avfilter: do not crash on null link src/dst in avfilter_destroy()

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Originally committed as revision 24719 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård 2010-08-06 22:25:36 +00:00
parent f3b90d25ee
commit 0bb7408e55
1 changed files with 2 additions and 0 deletions
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2
libavfilter/avfilter.c
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@ -429,6 +429,7 @@ void avfilter_destroy(AVFilterContext *filter)
for(i = 0; i < filter->input_count; i ++) { for(i = 0; i < filter->input_count; i ++) {
if(filter->inputs[i]) { if(filter->inputs[i]) {
if (filter->inputs[i]->src)
filter->inputs[i]->src->outputs[filter->inputs[i]->srcpad] = NULL; filter->inputs[i]->src->outputs[filter->inputs[i]->srcpad] = NULL;
avfilter_formats_unref(&filter->inputs[i]->in_formats); avfilter_formats_unref(&filter->inputs[i]->in_formats);
avfilter_formats_unref(&filter->inputs[i]->out_formats); avfilter_formats_unref(&filter->inputs[i]->out_formats);
@ -437,6 +438,7 @@ void avfilter_destroy(AVFilterContext *filter)
} }
for(i = 0; i < filter->output_count; i ++) { for(i = 0; i < filter->output_count; i ++) {
if(filter->outputs[i]) { if(filter->outputs[i]) {
if (filter->outputs[i]->dst)
filter->outputs[i]->dst->inputs[filter->outputs[i]->dstpad] = NULL; filter->outputs[i]->dst->inputs[filter->outputs[i]->dstpad] = NULL;
avfilter_formats_unref(&filter->outputs[i]->in_formats); avfilter_formats_unref(&filter->outputs[i]->in_formats);
avfilter_formats_unref(&filter->outputs[i]->out_formats); avfilter_formats_unref(&filter->outputs[i]->out_formats);