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Moodbar: Check for nullptr

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This commit is contained in:
Jonas Kvinge 2021-09-26 14:42:24 +02:00
parent abf19e7a27
commit 0235be538b
1 changed files with 16 additions and 7 deletions
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23
src/moodbar/moodbarpipeline.cpp
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@ -107,8 +107,10 @@ void MoodbarPipeline::Start() {
// Connect signals
CHECKED_GCONNECT(decodebin, "pad-added", &NewPadCallback, this);
GstBus *bus = gst_pipeline_get_bus(GST_PIPELINE(pipeline_));
gst_bus_set_sync_handler(bus, BusCallbackSync, this, nullptr);
gst_object_unref(bus);
if (bus) {
gst_bus_set_sync_handler(bus, BusCallbackSync, this, nullptr);
gst_object_unref(bus);
}
// Start playing
running_ = true;
@ -141,6 +143,7 @@ void MoodbarPipeline::NewPadCallback(GstElement*, GstPad *pad, gpointer data) {
}
GstPad *const audiopad = gst_element_get_static_pad(self->convert_element_, "sink");
if (!audiopad) return;
if (GST_PAD_IS_LINKED(audiopad)) {
qLog(Warning) << "audiopad is already linked, unlinking old pad";
@ -152,9 +155,13 @@ void MoodbarPipeline::NewPadCallback(GstElement*, GstPad *pad, gpointer data) {
int rate = 0;
GstCaps *caps = gst_pad_get_current_caps(pad);
GstStructure *structure = gst_caps_get_structure(caps, 0);
gst_structure_get_int(structure, "rate", &rate);
gst_caps_unref(caps);
if (caps) {
GstStructure *structure = gst_caps_get_structure(caps, 0);
if (structure) {
gst_structure_get_int(structure, "rate", &rate);
}
gst_caps_unref(caps);
}
if (self->builder_) {
self->builder_->Init(kBands, rate);
@ -207,8 +214,10 @@ void MoodbarPipeline::Cleanup() {
running_ = false;
if (pipeline_) {
GstBus *bus = gst_pipeline_get_bus(GST_PIPELINE(pipeline_));
gst_bus_set_sync_handler(bus, nullptr, nullptr, nullptr);
gst_object_unref(bus);
if (bus) {
gst_bus_set_sync_handler(bus, nullptr, nullptr, nullptr);
gst_object_unref(bus);
}
gst_element_set_state(pipeline_, GST_STATE_NULL);
gst_object_unref(pipeline_);