static void
gst_wildmidi_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstWildmidi *wildmidi;
g_return_if_fail (GST_IS_WILDMIDI (object));
wildmidi = GST_WILDMIDI (object);
switch (prop_id) {
case PROP_LINEAR_VOLUME:
GST_OBJECT_LOCK (object);
g_value_set_boolean (value, wildmidi->linear_volume);
GST_OBJECT_UNLOCK (object);
break;
case PROP_HIGH_QUALITY:
GST_OBJECT_LOCK (object);
g_value_set_boolean (value, wildmidi->high_quality);
GST_OBJECT_UNLOCK (object);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_wildmidi_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstWildmidi *wildmidi;
g_return_if_fail (GST_IS_WILDMIDI (object));
wildmidi = GST_WILDMIDI (object);
switch (prop_id) {
case ARG_LINEAR_VOLUME:
GST_OBJECT_LOCK (object);
wildmidi->linear_volume = g_value_get_boolean (value);
if (wildmidi->song)
WildMidi_SetOption (wildmidi->song, WM_MO_LINEAR_VOLUME,
wildmidi->linear_volume);
GST_OBJECT_UNLOCK (object);
break;
case ARG_HIGH_QUALITY:
GST_OBJECT_LOCK (object);
wildmidi->high_quality = g_value_get_boolean (value);
if (wildmidi->song)
WildMidi_SetOption (wildmidi->song, WM_MO_EXPENSIVE_INTERPOLATION,
wildmidi->high_quality);
GST_OBJECT_UNLOCK (object);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_wildmidi_src_query (GstPad * pad, GstQuery * query)
{
gboolean res = TRUE;
GstWildmidi *wildmidi = GST_WILDMIDI (gst_pad_get_parent (pad));
GstFormat src_format, dst_format;
gint64 src_value, dst_value;
if (!wildmidi->song) {
gst_object_unref (wildmidi);
return FALSE;
}
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:
gst_query_set_duration (query, GST_FORMAT_TIME,
gst_util_uint64_scale_int (wildmidi->o_len, GST_SECOND,
WILDMIDI_RATE));
break;
case GST_QUERY_POSITION:
gst_query_set_position (query, GST_FORMAT_TIME,
gst_util_uint64_scale_int (wildmidi->o_segment->last_stop, GST_SECOND,
WILDMIDI_RATE));
break;
case GST_QUERY_CONVERT:
gst_query_parse_convert (query, &src_format, &src_value,
&dst_format, NULL);
res =
gst_wildmidi_src_convert (wildmidi, src_format, src_value,
&dst_format, &dst_value);
if (res)
gst_query_set_convert (query, src_format, src_value, dst_format,
dst_value);
break;
case GST_QUERY_FORMATS:
gst_query_set_formats (query, 3,
GST_FORMAT_TIME, GST_FORMAT_BYTES, GST_FORMAT_DEFAULT);
break;
case GST_QUERY_SEGMENT:
gst_query_set_segment (query, wildmidi->o_segment->rate,
wildmidi->o_segment->format, wildmidi->o_segment->start,
wildmidi->o_segment->stop);
break;
case GST_QUERY_SEEKING:
gst_query_set_seeking (query, wildmidi->o_segment->format,
TRUE, 0, wildmidi->o_len);
break;
default:
res = FALSE;
break;
}
gst_object_unref (wildmidi);
return res;
}
static void
gst_wildmidi_finalize (GObject * object)
{
GstWildmidi *wildmidi;
wildmidi = GST_WILDMIDI (object);
g_object_unref (wildmidi->adapter);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GstFlowReturn
gst_wildmidi_chain (GstPad * sinkpad, GstObject * parent, GstBuffer * buffer)
{
GstWildmidi *wildmidi;
wildmidi = GST_WILDMIDI (parent);
/* push stuff in the adapter, we will start doing something in the sink event
* handler when we get EOS */
gst_adapter_push (wildmidi->adapter, buffer);
return GST_FLOW_OK;
}
static gboolean
gst_wildmidi_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
gboolean res = FALSE;
GstWildmidi *wildmidi = GST_WILDMIDI (parent);
GST_DEBUG_OBJECT (pad, "%s event received", GST_EVENT_TYPE_NAME (event));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
res = gst_wildmidi_do_seek (wildmidi, event);
break;
default:
break;
}
gst_event_unref (event);
return res;
}
static GstStateChangeReturn
gst_wildmidi_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstWildmidi *wildmidi = GST_WILDMIDI (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
wildmidi->offset = 0;
wildmidi->state = GST_WILDMIDI_STATE_LOAD;
wildmidi->discont = FALSE;
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
GST_OBJECT_LOCK (wildmidi);
if (wildmidi->song)
WildMidi_Close (wildmidi->song);
wildmidi->song = NULL;
GST_OBJECT_UNLOCK (wildmidi);
gst_adapter_clear (wildmidi->adapter);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static gboolean
gst_wildmidi_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
gboolean res;
GstWildmidi *wildmidi = GST_WILDMIDI (parent);
GST_DEBUG_OBJECT (pad, "%s event received", GST_EVENT_TYPE_NAME (event));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
wildmidi->state = GST_WILDMIDI_STATE_PARSE;
/* now start the parsing task */
res = gst_pad_start_task (wildmidi->sinkpad,
(GstTaskFunction) gst_wildmidi_loop, wildmidi->sinkpad, NULL);
/* don't forward the event */
gst_event_unref (event);
break;
default:
res = gst_pad_event_default (pad, parent, event);
break;
}
return res;
}
static void
gst_wildmidi_loop (GstPad * sinkpad)
{
GstWildmidi *wildmidi = GST_WILDMIDI (GST_PAD_PARENT (sinkpad));
GstFlowReturn ret;
switch (wildmidi->state) {
case GST_WILDMIDI_STATE_LOAD:
{
GstBuffer *buffer = NULL;
GST_DEBUG_OBJECT (wildmidi, "loading song");
ret =
gst_pad_pull_range (wildmidi->sinkpad, wildmidi->offset, -1, &buffer);
if (ret == GST_FLOW_EOS) {
GST_DEBUG_OBJECT (wildmidi, "Song loaded");
wildmidi->state = GST_WILDMIDI_STATE_PARSE;
} else if (ret != GST_FLOW_OK) {
GST_ELEMENT_ERROR (wildmidi, STREAM, DECODE, (NULL),
("Unable to read song"));
goto pause;
} else {
GST_DEBUG_OBJECT (wildmidi, "pushing buffer");
gst_adapter_push (wildmidi->adapter, buffer);
wildmidi->offset += gst_buffer_get_size (buffer);
}
break;
}
case GST_WILDMIDI_STATE_PARSE:
ret = gst_wildmidi_parse_song (wildmidi);
if (ret != GST_FLOW_OK)
goto pause;
wildmidi->state = GST_WILDMIDI_STATE_PLAY;
break;
case GST_WILDMIDI_STATE_PLAY:
ret = gst_wildmidi_do_play (wildmidi);
if (ret != GST_FLOW_OK)
goto pause;
break;
default:
break;
}
return;
pause:
{
const gchar *reason = gst_flow_get_name (ret);
GstEvent *event;
GST_DEBUG_OBJECT (wildmidi, "pausing task, reason %s", reason);
gst_pad_pause_task (sinkpad);
if (ret == GST_FLOW_EOS) {
/* perform EOS logic */
event = gst_event_new_eos ();
gst_pad_push_event (wildmidi->srcpad, event);
} else if (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_EOS) {
event = gst_event_new_eos ();
/* for fatal errors we post an error message, post the error
* first so the app knows about the error first. */
GST_ELEMENT_ERROR (wildmidi, STREAM, FAILED,
("Internal data flow error."),
("streaming task paused, reason %s (%d)", reason, ret));
gst_pad_push_event (wildmidi->srcpad, event);
}
}
}
static gboolean
gst_wildmidi_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
gboolean res = TRUE;
GstWildmidi *wildmidi = GST_WILDMIDI (parent);
GstFormat src_format, dst_format;
gint64 src_value, dst_value;
if (!wildmidi->song)
return FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:
gst_query_set_duration (query, GST_FORMAT_TIME,
gst_util_uint64_scale_int (wildmidi->o_len, GST_SECOND,
WILDMIDI_RATE));
break;
case GST_QUERY_POSITION:
gst_query_set_position (query, GST_FORMAT_TIME,
gst_util_uint64_scale_int (wildmidi->o_segment->position, GST_SECOND,
WILDMIDI_RATE));
break;
case GST_QUERY_CONVERT:
gst_query_parse_convert (query, &src_format, &src_value,
&dst_format, NULL);
res =
gst_wildmidi_src_convert (wildmidi, src_format, src_value,
&dst_format, &dst_value);
if (res)
gst_query_set_convert (query, src_format, src_value, dst_format,
dst_value);
break;
case GST_QUERY_FORMATS:
gst_query_set_formats (query, 3,
GST_FORMAT_TIME, GST_FORMAT_BYTES, GST_FORMAT_DEFAULT);
break;
case GST_QUERY_SEGMENT:{
GstFormat format;
gint64 start, stop;
format = wildmidi->o_segment->format;
start =
gst_segment_to_stream_time (wildmidi->o_segment, format,
wildmidi->o_segment->start);
if ((stop = wildmidi->o_segment->stop) == -1)
stop = wildmidi->o_segment->duration;
else
stop = gst_segment_to_stream_time (wildmidi->o_segment, format, stop);
gst_query_set_segment (query, wildmidi->o_segment->rate, format, start,
stop);
res = TRUE;
break;
}
case GST_QUERY_SEEKING:
gst_query_set_seeking (query, wildmidi->o_segment->format,
TRUE, 0, wildmidi->o_len);
break;
default:
res = gst_pad_query_default (pad, parent, query);
break;
}
return res;
}
