static GstCaps *
gst_play_sink_audio_convert_getcaps (GstPad * pad)
{
GstPlaySinkAudioConvert *self =
GST_PLAY_SINK_AUDIO_CONVERT (gst_pad_get_parent (pad));
GstCaps *ret;
GstPad *otherpad, *peer = NULL;
GST_PLAY_SINK_AUDIO_CONVERT_LOCK (self);
otherpad = gst_ghost_pad_get_target (GST_GHOST_PAD_CAST (pad));
GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
if (otherpad) {
peer = gst_pad_get_peer (otherpad);
gst_object_unref (otherpad);
otherpad = NULL;
}
if (peer) {
ret = gst_pad_get_caps_reffed (peer);
gst_object_unref (peer);
} else {
ret = gst_caps_new_any ();
}
gst_object_unref (self);
return ret;
}
static GstCaps *
gst_play_sink_audio_convert_getcaps (GstPad * pad)
{
GstPlaySinkAudioConvert *self =
GST_PLAY_SINK_AUDIO_CONVERT (gst_pad_get_parent (pad));
GstCaps *ret;
GstPad *otherpad, *peer;
GST_PLAY_SINK_AUDIO_CONVERT_LOCK (self);
if (pad == self->srcpad)
otherpad = gst_object_ref (self->sinkpad);
else
otherpad = gst_object_ref (self->srcpad);
GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
peer = gst_pad_get_peer (otherpad);
if (peer) {
ret = gst_pad_get_caps_reffed (peer);
gst_object_unref (peer);
} else {
ret = gst_caps_new_any ();
}
gst_object_unref (otherpad);
gst_object_unref (self);
return ret;
}
static gboolean
gst_play_sink_audio_convert_sink_event (GstPad * pad, GstEvent * event)
{
GstPlaySinkAudioConvert *self =
GST_PLAY_SINK_AUDIO_CONVERT (gst_pad_get_parent (pad));
gboolean ret;
ret = gst_proxy_pad_event_default (pad, gst_event_ref (event));
if (GST_EVENT_TYPE (event) == GST_EVENT_NEWSEGMENT) {
gboolean update;
gdouble rate, applied_rate;
GstFormat format;
gint64 start, stop, position;
GST_PLAY_SINK_AUDIO_CONVERT_LOCK (self);
gst_event_parse_new_segment_full (event, &update, &rate, &applied_rate,
&format, &start, &stop, &position);
GST_DEBUG_OBJECT (self, "Segment before %" GST_SEGMENT_FORMAT,
&self->segment);
gst_segment_set_newsegment_full (&self->segment, update, rate, applied_rate,
format, start, stop, position);
GST_DEBUG_OBJECT (self, "Segment after %" GST_SEGMENT_FORMAT,
&self->segment);
GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
} else if (GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_STOP) {
GST_PLAY_SINK_AUDIO_CONVERT_LOCK (self);
GST_DEBUG_OBJECT (self, "Resetting segment");
gst_segment_init (&self->segment, GST_FORMAT_UNDEFINED);
GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
}
gst_event_unref (event);
gst_object_unref (self);
return ret;
}
static gboolean
gst_play_sink_audio_convert_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstPlaySinkAudioConvert *self =
GST_PLAY_SINK_AUDIO_CONVERT (gst_pad_get_parent (pad));
gboolean ret;
GstStructure *s;
const gchar *name;
gboolean reconfigure = FALSE;
GST_PLAY_SINK_AUDIO_CONVERT_LOCK (self);
s = gst_caps_get_structure (caps, 0);
name = gst_structure_get_name (s);
if (g_str_has_prefix (name, "audio/x-raw-")) {
if (!self->raw && !gst_pad_is_blocked (self->sink_proxypad)) {
GST_DEBUG_OBJECT (self, "Changing caps from non-raw to raw");
reconfigure = TRUE;
gst_pad_set_blocked_async_full (self->sink_proxypad, TRUE,
(GstPadBlockCallback) pad_blocked_cb, gst_object_ref (self),
(GDestroyNotify) gst_object_unref);
}
} else {
if (self->raw && !gst_pad_is_blocked (self->sink_proxypad)) {
GST_DEBUG_OBJECT (self, "Changing caps from raw to non-raw");
reconfigure = TRUE;
gst_pad_set_blocked_async_full (self->sink_proxypad, TRUE,
(GstPadBlockCallback) pad_blocked_cb, gst_object_ref (self),
(GDestroyNotify) gst_object_unref);
}
}
/* Otherwise the setcaps below fails */
if (reconfigure) {
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->sinkpad), NULL);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad), NULL);
}
GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
ret = gst_ghost_pad_setcaps_default (pad, caps);
GST_DEBUG_OBJECT (self, "Setting sink caps %" GST_PTR_FORMAT ": %d", caps,
ret);
gst_object_unref (self);
return ret;
}
static void
pad_blocked_cb (GstPad * pad, gboolean blocked, GstPlaySinkAudioConvert * self)
{
GstPad *peer;
GstCaps *caps;
gboolean raw;
GST_PLAY_SINK_AUDIO_CONVERT_LOCK (self);
self->sink_proxypad_blocked = blocked;
GST_DEBUG_OBJECT (self, "Pad blocked: %d", blocked);
if (!blocked)
goto done;
/* There must be a peer at this point */
peer = gst_pad_get_peer (self->sinkpad);
caps = gst_pad_get_negotiated_caps (peer);
if (!caps)
caps = gst_pad_get_caps_reffed (peer);
gst_object_unref (peer);
raw = is_raw_caps (caps);
GST_DEBUG_OBJECT (self, "Caps %" GST_PTR_FORMAT " are raw: %d", caps, raw);
gst_caps_unref (caps);
if (raw == self->raw)
goto unblock;
self->raw = raw;
if (raw) {
GstBin *bin = GST_BIN_CAST (self);
GstElement *head = NULL, *prev = NULL;
GstPad *pad;
GST_DEBUG_OBJECT (self, "Creating raw conversion pipeline");
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->sinkpad), NULL);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad), NULL);
if (self->use_converters) {
self->conv = gst_element_factory_make ("audioconvert", "conv");
if (self->conv == NULL) {
post_missing_element_message (self, "audioconvert");
GST_ELEMENT_WARNING (self, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"audioconvert"), ("audio rendering might fail"));
} else {
gst_bin_add (bin, self->conv);
gst_element_sync_state_with_parent (self->conv);
distribute_running_time (self->conv, &self->segment);
prev = head = self->conv;
}
self->resample = gst_element_factory_make ("audioresample", "resample");
if (self->resample == NULL) {
post_missing_element_message (self, "audioresample");
GST_ELEMENT_WARNING (self, CORE, MISSING_PLUGIN,
(_("Missing element '%s' - check your GStreamer installation."),
"audioresample"), ("possibly a liboil version mismatch?"));
} else {
gst_bin_add (bin, self->resample);
gst_element_sync_state_with_parent (self->resample);
distribute_running_time (self->resample, &self->segment);
if (prev) {
if (!gst_element_link_pads_full (prev, "src", self->resample, "sink",
GST_PAD_LINK_CHECK_TEMPLATE_CAPS))
goto link_failed;
} else {
head = self->resample;
}
prev = self->resample;
}
}
if (self->use_volume && self->volume) {
gst_bin_add (bin, gst_object_ref (self->volume));
gst_element_sync_state_with_parent (self->volume);
distribute_running_time (self->volume, &self->segment);
if (prev) {
if (!gst_element_link_pads_full (prev, "src", self->volume, "sink",
GST_PAD_LINK_CHECK_TEMPLATE_CAPS))
goto link_failed;
} else {
head = self->volume;
}
prev = self->volume;
}
if (head) {
pad = gst_element_get_static_pad (head, "sink");
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->sinkpad), pad);
gst_object_unref (pad);
}
if (prev) {
pad = gst_element_get_static_pad (prev, "src");
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad), pad);
gst_object_unref (pad);
}
if (!head && !prev) {
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad),
self->sink_proxypad);
}
GST_DEBUG_OBJECT (self, "Raw conversion pipeline created");
} else {
GstBin *bin = GST_BIN_CAST (self);
GST_DEBUG_OBJECT (self, "Removing raw conversion pipeline");
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->sinkpad), NULL);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad), NULL);
if (self->conv) {
gst_element_set_state (self->conv, GST_STATE_NULL);
gst_bin_remove (bin, self->conv);
self->conv = NULL;
}
if (self->resample) {
gst_element_set_state (self->resample, GST_STATE_NULL);
gst_bin_remove (bin, self->resample);
self->resample = NULL;
}
if (self->volume) {
gst_element_set_state (self->volume, GST_STATE_NULL);
if (GST_OBJECT_PARENT (self->volume) == GST_OBJECT_CAST (self)) {
gst_bin_remove (GST_BIN_CAST (self), self->volume);
}
}
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad),
self->sink_proxypad);
GST_DEBUG_OBJECT (self, "Raw conversion pipeline removed");
}
unblock:
gst_pad_set_blocked_async_full (self->sink_proxypad, FALSE,
(GstPadBlockCallback) pad_blocked_cb, gst_object_ref (self),
(GDestroyNotify) gst_object_unref);
done:
GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
return;
link_failed:
{
GST_ELEMENT_ERROR (self, CORE, PAD,
(NULL), ("Failed to configure the audio converter."));
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad),
self->sink_proxypad);
gst_pad_set_blocked_async_full (self->sink_proxypad, FALSE,
(GstPadBlockCallback) pad_blocked_cb, gst_object_ref (self),
(GDestroyNotify) gst_object_unref);
GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
return;
}
}
static GstStateChangeReturn
gst_play_sink_audio_convert_change_state (GstElement * element,
GstStateChange transition)
{
GstStateChangeReturn ret;
GstPlaySinkAudioConvert *self = GST_PLAY_SINK_AUDIO_CONVERT_CAST (element);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
GST_PLAY_SINK_AUDIO_CONVERT_LOCK (self);
if (gst_pad_is_blocked (self->sink_proxypad))
gst_pad_set_blocked_async_full (self->sink_proxypad, FALSE,
(GstPadBlockCallback) pad_blocked_cb, gst_object_ref (self),
(GDestroyNotify) gst_object_unref);
GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
GST_PLAY_SINK_AUDIO_CONVERT_LOCK (self);
gst_segment_init (&self->segment, GST_FORMAT_UNDEFINED);
if (self->conv) {
gst_element_set_state (self->conv, GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (self), self->conv);
self->conv = NULL;
}
if (self->resample) {
gst_element_set_state (self->resample, GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (self), self->resample);
self->resample = NULL;
}
if (self->volume) {
gst_element_set_state (self->volume, GST_STATE_NULL);
if (GST_OBJECT_PARENT (self->volume) == GST_OBJECT_CAST (self)) {
gst_bin_remove (GST_BIN_CAST (self), self->volume);
}
}
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad),
self->sink_proxypad);
self->raw = FALSE;
GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
GST_PLAY_SINK_AUDIO_CONVERT_LOCK (self);
if (!gst_pad_is_blocked (self->sink_proxypad))
gst_pad_set_blocked_async_full (self->sink_proxypad, TRUE,
(GstPadBlockCallback) pad_blocked_cb, gst_object_ref (self),
(GDestroyNotify) gst_object_unref);
GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
default:
break;
}
return ret;
}
