diff options
Diffstat (limited to 'libavformat/mov.c')
| -rw-r--r-- | libavformat/mov.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libavformat/mov.c b/libavformat/mov.c index 04567fc475..f01116874c 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -4596,6 +4596,7 @@ static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom) int64_t prev_dts = AV_NOPTS_VALUE; int next_frag_index = -1, index_entry_pos; size_t requested_size; + size_t old_ctts_allocated_size; AVIndexEntry *new_entries; MOVFragmentStreamInfo * frag_stream_info; @@ -4688,6 +4689,7 @@ static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom) st->index_entries= new_entries; requested_size = (st->nb_index_entries + entries) * sizeof(*sc->ctts_data); + old_ctts_allocated_size = sc->ctts_allocated_size; ctts_data = av_fast_realloc(sc->ctts_data, &sc->ctts_allocated_size, requested_size); if (!ctts_data) @@ -4697,8 +4699,8 @@ static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom) // In case there were samples without ctts entries, ensure they get // zero valued entries. This ensures clips which mix boxes with and // without ctts entries don't pickup uninitialized data. - memset(sc->ctts_data + sc->ctts_count, 0, - (st->nb_index_entries - sc->ctts_count) * sizeof(*sc->ctts_data)); + memset((uint8_t*)(sc->ctts_data) + old_ctts_allocated_size, 0, + sc->ctts_allocated_size - old_ctts_allocated_size); if (index_entry_pos < st->nb_index_entries) { // Make hole in index_entries and ctts_data for new samples |