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msdk: manage child sessions on parent GstMsdkContext

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Sometimes parent context is released before its children get released.
In this case MFXClose of parent session fails.

To make sure that child sessions are closed before closing a parent
session,
Parent context needs to manage child sessions and close them first when
it's released.

https://bugzilla.gnome.org/show_bug.cgi?id=793412
This commit is contained in:
Hyunjun Ko 2018-03-08 11:38:30 -09:00 committed by Sreerenj Balachandran
parent 37ef61586a
commit c9faf0d612
1 changed files with 19 additions and 3 deletions
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22
sys/msdk/gstmsdkcontext.c
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@ -59,6 +59,7 @@ struct _GstMsdkContextPrivate
GstMsdkContextJobType job_type;
gint shared_async_depth;
GMutex mutex;
GList *child_session_list;
#ifndef _WIN32
gint fd;
VADisplay dpy;
@ -213,16 +214,29 @@ gst_msdk_context_init (GstMsdkContext * context)
g_mutex_init (&priv->mutex);
}
static void
release_child_session (gpointer session)
{
mfxStatus status;
mfxSession _session = session;
status = MFXDisjoinSession (_session);
if (status != MFX_ERR_NONE)
GST_WARNING ("failed to disjoin (%s)", msdk_status_to_string (status));
msdk_close_session (_session);
}
static void
gst_msdk_context_finalize (GObject * obj)
{
GstMsdkContext *context = GST_MSDK_CONTEXT_CAST (obj);
GstMsdkContextPrivate *priv = context->priv;
if (priv->is_joined) {
MFXDisjoinSession (priv->session);
/* child sessions will be closed when the parent session is closed */
if (priv->is_joined)
goto done;
}
else
g_list_free_full (priv->child_session_list, release_child_session);
msdk_close_session (priv->session);
g_mutex_clear (&priv->mutex);
@ -284,6 +298,8 @@ gst_msdk_context_new_with_parent (GstMsdkContext * parent)
priv->is_joined = TRUE;
priv->hardware = parent_priv->hardware;
priv->job_type = parent_priv->job_type;
parent_priv->child_session_list =
g_list_prepend (parent_priv->child_session_list, priv->session);
#ifndef _WIN32
priv->dpy = parent_priv->dpy;
priv->fd = parent_priv->fd;