diff options
| -rw-r--r-- | libavfilter/formats.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/libavfilter/formats.c b/libavfilter/formats.c index 49a74c2cf0..5846b9b275 100644 --- a/libavfilter/formats.c +++ b/libavfilter/formats.c @@ -109,8 +109,23 @@ void avfilter_formats_ref(AVFilterFormats *f, AVFilterFormats **ref) f->refs[f->refcount-1] = ref; } +static int find_ref_index(AVFilterFormats *f, AVFilterFormats **ref) +{ + int i; + for(i = 0; i < (*ref)->refcount; i ++) + if((*ref)->refs[i] == ref) + return i; + return -1; +} + void avfilter_formats_unref(AVFilterFormats **ref) { + int idx; + + if((idx = find_ref_index(*ref, ref)) >= 0) + memmove((*ref)->refs + idx, (*ref)->refs + idx+1, + sizeof(AVFilterFormats**) * ((*ref)->refcount-idx-1)); + if(!--(*ref)->refcount) { av_free((*ref)->formats); av_free((*ref)->refs); |