if pos has been reset, clear fragments and indexes and search for next root
Signed-off-by: vectronic <hello.vectro...@gmail.com>
---
libavformat/mov.c | 36 +++++++++++++++++++++++++++++++++---
1 file changed, 33 insertions(+), 3 deletions(-)
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 3d6fef685d..8f051fb9b1 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -7796,15 +7796,15 @@ static int mov_switch_root(AVFormatContext *s, int64_t
target, int index)
if (index >= 0 && index < mov->frag_index.nb_items)
target = mov->frag_index.item[index].moof_offset;
- if (avio_seek(s->pb, target, SEEK_SET) != target) {
+ if (target >= 0 && avio_seek(s->pb, target, SEEK_SET) != target) {
av_log(mov->fc, AV_LOG_ERROR, "root atom offset 0x%"PRIx64": partial
file\n", target);
return AVERROR_INVALIDDATA;
}
mov->next_root_atom = 0;
- if (index < 0 || index >= mov->frag_index.nb_items)
+ if ((index < 0 && target >= 0) || index >= mov->frag_index.nb_items)
index = search_frag_moof_offset(&mov->frag_index, target);
- if (index < mov->frag_index.nb_items &&
+ if (index >= 0 && index < mov->frag_index.nb_items &&
mov->frag_index.item[index].moof_offset == target) {
if (index + 1 < mov->frag_index.nb_items)
mov->next_root_atom = mov->frag_index.item[index + 1].moof_offset;
@@ -7856,8 +7856,38 @@ static int mov_read_packet(AVFormatContext *s, AVPacket
*pkt)
AVStream *st = NULL;
int64_t current_index;
int ret;
+ int i;
mov->fc = s;
retry:
+ if (s->pb->pos == 0) {
+
+ // Discard current fragment index
+ if (mov->frag_index.allocated_size > 0) {
+ av_freep(&mov->frag_index.item);
+ mov->frag_index.nb_items = 0;
+ mov->frag_index.allocated_size = 0;
+ mov->frag_index.current = -1;
+ mov->frag_index.complete = 0;
+ }
+
+ for (i = 0; i < s->nb_streams; i++) {
+ AVStream *avst = s->streams[i];
+ MOVStreamContext *msc = avst->priv_data;
+
+ // Clear current sample
+ mov_current_sample_set(msc, 0);
+
+ // Discard current index entries
+ if (avst->index_entries_allocated_size > 0) {
+ av_freep(&avst->index_entries);
+ avst->index_entries_allocated_size = 0;
+ avst->nb_index_entries = 0;
+ }
+ }
+
+ if ((ret = mov_switch_root(s, -1, -1)) < 0)
+ return ret;
+ }
sample = mov_find_next_sample(s, &st);
if (!sample || (mov->next_root_atom && sample->pos > mov->next_root_atom))
{
if (!mov->next_root_atom)
--
2.24.2 (Apple Git-127)
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