Absolute paths can be stored in alis type 2 and 18 according to my research:
the first is the canonical MacOS filepath, with path level separated by
colons, and the volume name within the filepath, while the second should be the
absolute filesystem path from the mount point.
---
libavformat/mov.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/libavformat/mov.c b/libavformat/mov.c
index ef58492..5f577f3 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -518,12 +518,14 @@ static int mov_read_dref(MOVContext *c, AVIOContext *pb,
MOVAtom atom)
av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
if (len&1)
len += 1;
- if (type == 2) { // absolute path
+ if (type == 2 || type == 18) { // absolute path
av_free(dref->path);
dref->path = av_mallocz(len+1);
if (!dref->path)
return AVERROR(ENOMEM);
avio_read(pb, dref->path, len);
+ if (type == 18) // no additional processing needed
+ continue;
if (len > volume_len && !strncmp(dref->path, dref->volume,
volume_len)) {
len -= volume_len;
memmove(dref->path, dref->path+volume_len, len);
--
1.9.5 (Apple Git-50.3)
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