Speeds up the process considerably.
Fixes ticket #8109.
Suggested-by: nevcairiel
Suggested-by: cehoyos
Signed-off-by: James Almer <jamr...@gmail.com>
---
libavformat/matroskadec.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 439ee462a5..fe45c4fd7f 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -110,6 +110,7 @@ typedef const struct EbmlSyntax {
typedef struct EbmlList {
int nb_elem;
+ unsigned int alloc_elem_size;
void *elem;
} EbmlList;
@@ -1236,8 +1237,9 @@ static int ebml_parse(MatroskaDemuxContext *matroska,
data = (char *) data + syntax->data_offset;
if (syntax->list_elem_size) {
EbmlList *list = data;
- void *newelem = av_realloc_array(list->elem, list->nb_elem + 1,
- syntax->list_elem_size);
+ void *newelem = av_fast_realloc(list->elem,
+ &list->alloc_elem_size,
+ (list->nb_elem + 1) *
syntax->list_elem_size);
if (!newelem)
return AVERROR(ENOMEM);
list->elem = newelem;
--
2.22.0
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