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eglglessink: Fix race condition

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This commit is contained in:
Sebastian Dröge 2012-10-16 16:12:48 +02:00
parent 99f738bbc0
commit caf9d1febd
1 changed files with 26 additions and 0 deletions
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26
ext/eglgles/gsteglglessink.c
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@ -1082,7 +1082,9 @@ render_thread_func (GstEglGlesSink * eglglessink)
if (caps != eglglessink->configured_caps) {
if (!gst_eglglessink_configure_caps (eglglessink, caps)) {
eglglessink->last_flow = GST_FLOW_NOT_NEGOTIATED;
g_mutex_lock (eglglessink->render_lock);
g_cond_broadcast (eglglessink->render_cond);
g_mutex_unlock (eglglessink->render_lock);
item->destroy (item);
break;
}
@ -1090,15 +1092,24 @@ render_thread_func (GstEglGlesSink * eglglessink)
}
eglglessink->last_flow = gst_eglglessink_render_and_display (eglglessink, buf);
g_mutex_lock (eglglessink->render_lock);
g_cond_broadcast (eglglessink->render_cond);
g_mutex_unlock (eglglessink->render_lock);
item->destroy (item);
if (eglglessink->last_flow != GST_FLOW_OK)
break;
GST_DEBUG_OBJECT (eglglessink, "Successfully handled object");
}
g_mutex_lock (eglglessink->render_lock);
g_cond_broadcast (eglglessink->render_cond);
g_mutex_unlock (eglglessink->render_lock);
if (eglglessink->last_flow == GST_FLOW_OK)
eglglessink->last_flow = GST_FLOW_WRONG_STATE;
GST_DEBUG_OBJECT (eglglessink, "Shutting down thread");
/* EGL/GLES cleanup */
if (eglglessink->rendering_path == GST_EGLGLESSINK_RENDER_SLOW) {
glUseProgram (0);
@ -1158,6 +1169,8 @@ gst_eglglessink_start (GstEglGlesSink * eglglessink)
{
GError *error = NULL;
GST_DEBUG_OBJECT (eglglessink, "Starting");
if (!eglglessink->egl_started) {
GST_ERROR_OBJECT (eglglessink, "EGL uninitialized. Bailing out");
goto HANDLE_ERROR;
@ -1188,6 +1201,8 @@ gst_eglglessink_start (GstEglGlesSink * eglglessink)
if (!eglglessink->thread || error != NULL)
goto HANDLE_ERROR;
GST_DEBUG_OBJECT (eglglessink, "Started");
return TRUE;
HANDLE_ERROR:
@ -1199,8 +1214,12 @@ HANDLE_ERROR:
static gboolean
gst_eglglessink_stop (GstEglGlesSink * eglglessink)
{
GST_DEBUG_OBJECT (eglglessink, "Stopping");
gst_data_queue_set_flushing (eglglessink->queue, TRUE);
g_mutex_lock (eglglessink->render_lock);
g_cond_broadcast (eglglessink->render_cond);
g_mutex_unlock (eglglessink->render_lock);
if (eglglessink->thread) {
g_thread_join (eglglessink->thread);
@ -1220,6 +1239,8 @@ gst_eglglessink_stop (GstEglGlesSink * eglglessink)
eglglessink->current_caps = NULL;
}
GST_DEBUG_OBJECT (eglglessink, "Stopped");
return TRUE;
}
@ -2027,15 +2048,20 @@ gst_eglglessink_queue_buffer (GstEglGlesSink * eglglessink,
item->visible = (buf ? TRUE : FALSE);
item->destroy = (GDestroyNotify) queue_item_destroy;
GST_DEBUG_OBJECT (eglglessink, "Queueing buffer %" GST_PTR_FORMAT, buf);
if (buf)
g_mutex_lock (eglglessink->render_lock);
if (!gst_data_queue_push (eglglessink->queue, item)) {
g_mutex_unlock (eglglessink->render_lock);
GST_DEBUG_OBJECT (eglglessink, "Flushing");
return GST_FLOW_WRONG_STATE;
}
if (buf) {
GST_DEBUG_OBJECT (eglglessink, "Waiting for buffer to be rendered");
g_cond_wait (eglglessink->render_cond, eglglessink->render_lock);
GST_DEBUG_OBJECT (eglglessink, "Buffer rendered: %s", gst_flow_get_name (eglglessink->last_flow));
g_mutex_unlock (eglglessink->render_lock);
}