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mf: Handle null marker context for sample grabber stream. 

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Nikolay Sivov 2020-04-24 17:47:03 +03:00 committed by Alexandre Julliard
parent 73a6470d86
commit a12b5fe084
1 changed files with 4 additions and 2 deletions
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6
dlls/mf/samplegrabber.c
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@ -446,7 +446,7 @@ static HRESULT stream_place_marker(struct sample_grabber *grabber, MFSTREAMSINK_
const PROPVARIANT *context_value) const PROPVARIANT *context_value)
{ {
struct scheduled_item *item; struct scheduled_item *item;
HRESULT hr; HRESULT hr = S_OK;
if (list_empty(&grabber->items)) if (list_empty(&grabber->items))
{ {
@ -460,7 +460,9 @@ static HRESULT stream_place_marker(struct sample_grabber *grabber, MFSTREAMSINK_
item->type = ITEM_TYPE_MARKER; item->type = ITEM_TYPE_MARKER;
item->u.marker.type = marker_type; item->u.marker.type = marker_type;
list_init(&item->entry); list_init(&item->entry);
hr = PropVariantCopy(&item->u.marker.context, context_value); PropVariantInit(&item->u.marker.context);
if (context_value)
hr = PropVariantCopy(&item->u.marker.context, context_value);
if (SUCCEEDED(hr)) if (SUCCEEDED(hr))
list_add_tail(&grabber->items, &item->entry); list_add_tail(&grabber->items, &item->entry);
else else