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movdec: Don't parse all fragments if ignidx is set 

In nonseekable files, we already stop parsing the toplevel atoms
after finding moov and one mdat. In large seekable files (or files
that are seekable, but slowly, e.g. http), reading all the fragments
at the start can take a considerable amount of time. This allows
opting out from this behaviour.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2012-02-21 12:16:18 +02:00
parent 383a3b64cb
commit aa96d433e2
1 changed files with 3 additions and 2 deletions
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5
libavformat/mov.c
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@ -350,8 +350,9 @@ static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if (err < 0)
return err;
if (c->found_moov && c->found_mdat &&
(!pb->seekable || start_pos + a.size == avio_size(pb))) {
if (!pb->seekable)
((!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX) ||
start_pos + a.size == avio_size(pb))) {
if (!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX)
c->next_root_atom = start_pos + a.size;
return 0;
}