diff options
| -rw-r--r-- | libavfilter/avfilter.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c index 32e0944102..6157521ab3 100644 --- a/libavfilter/avfilter.c +++ b/libavfilter/avfilter.c @@ -47,6 +47,27 @@ void avfilter_unref_pic(AVFilterPicRef *ref) av_free(ref); } +void avfilter_insert_pad(unsigned idx, unsigned *count, size_t padidx_off, + AVFilterPad **pads, AVFilterLink ***links, + AVFilterPad *newpad) +{ + unsigned i; + + idx = FFMIN(idx, *count); + + *pads = av_realloc(*pads, sizeof(AVFilterPad) * (*count + 1)); + *links = av_realloc(*links, sizeof(AVFilterLink*) * (*count + 1)); + memmove(*pads +idx+1, *pads +idx, sizeof(AVFilterPad) * (*count-idx)); + memmove(*links+idx+1, *links+idx, sizeof(AVFilterLink*) * (*count-idx)); + memcpy(*pads+idx, newpad, sizeof(AVFilterPad)); + (*links)[idx] = NULL; + + (*count) ++; + for(i = idx+1; i < *count; i ++) + if(*links[i]) + (*(unsigned *)((uint8_t *)(*links[i]) + padidx_off)) ++; +} + int avfilter_link(AVFilterContext *src, unsigned srcpad, AVFilterContext *dst, unsigned dstpad) { |