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authorjstebbins <[email protected]>2011-01-13 17:39:02 +0000
committerjstebbins <[email protected]>2011-01-13 17:39:02 +0000
commit994040e5568bc19512e18384354f7df62cf98f66 (patch)
tree357732a12931f36f60f5cdcbcd85610400e65b1d
parent7deffcb2407575dea5840442e272eb7adce93839 (diff)
fix double free in handling of last CC message
the code dealing with cc messages stores the last message in 2 places. sometimes it would free both and sometimes it would send one down the pipeline and free the other. git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@3743 b64f7644-9d1e-0410-96f1-a4d463321fa5
-rw-r--r--libhb/decmpeg2.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/libhb/decmpeg2.c b/libhb/decmpeg2.c
index 3beef06d1..1d2d059b8 100644
--- a/libhb/decmpeg2.c
+++ b/libhb/decmpeg2.c
@@ -671,7 +671,15 @@ static void hb_libmpeg2_close( hb_libmpeg2_t ** _m )
for ( i = 0; i < NTAGS; ++i )
{
if ( m->tags[i].cc_buf )
+ {
+ if ( m->tags[i].cc_buf == m->last_cc1_buf )
+ m->last_cc1_buf = NULL;
hb_buffer_close( &m->tags[i].cc_buf );
+ }
+ }
+ if ( m->last_cc1_buf )
+ {
+ hb_buffer_close( &m->last_cc1_buf );
}
free( m );
@@ -782,6 +790,11 @@ static int decmpeg2Work( hb_work_object_t * w, hb_buffer_t ** buf_in,
if ( pv->libmpeg2->last_cc1_buf )
{
cc_send_to_decoder( pv->libmpeg2, pv->libmpeg2->last_cc1_buf );
+ if ( pv->libmpeg2->tags[pv->libmpeg2->cur_tag].cc_buf ==
+ pv->libmpeg2->last_cc1_buf )
+ {
+ pv->libmpeg2->tags[pv->libmpeg2->cur_tag].cc_buf = NULL;
+ }
pv->libmpeg2->last_cc1_buf = NULL;
}
cc_send_to_decoder( pv->libmpeg2, hb_buffer_init( 0 ) );
@@ -821,10 +834,6 @@ static void decmpeg2Close( hb_work_object_t * w )
{
hb_log( "mpeg2 done: %d frames", pv->libmpeg2->nframes );
}
- if ( pv->libmpeg2->last_cc1_buf )
- {
- hb_buffer_close( &pv->libmpeg2->last_cc1_buf );
- }
hb_list_close( &pv->list );
if ( pv->libmpeg2->list_subtitle )
{