static void
gst_au_parse_dispose (GObject * object)
{
GstAuParse *au = GST_AU_PARSE (object);
if (au->adapter != NULL) {
g_object_unref (au->adapter);
au->adapter = NULL;
}
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static gboolean
gst_au_parse_sink_event (GstPad * pad, GstEvent * event)
{
GstAuParse *auparse;
gboolean ret;
auparse = GST_AU_PARSE (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
default:
ret = gst_pad_event_default (pad, event);
break;
}
gst_object_unref (auparse);
return ret;
}
static GstStateChangeReturn
gst_au_parse_change_state (GstElement * element, GstStateChange transition)
{
GstAuParse *auparse = GST_AU_PARSE (element);
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
ret = parent_class->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_au_parse_reset (auparse);
default:
break;
}
return ret;
}
static gboolean
gst_au_parse_sink_event (GstPad * pad, GstEvent * event)
{
GstAuParse *auparse;
gboolean ret = TRUE;
auparse = GST_AU_PARSE (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NEWSEGMENT:
{
GstFormat format;
gdouble rate, arate;
gint64 start, stop, time, offset = 0;
gboolean update;
GstSegment segment;
GstEvent *new_event = NULL;
gst_segment_init (&segment, GST_FORMAT_UNDEFINED);
gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format,
&start, &stop, &time);
gst_segment_set_newsegment_full (&segment, update, rate, arate, format,
start, stop, time);
if (auparse->sample_size > 0) {
if (start > 0) {
offset = start;
start -= auparse->offset;
start = MAX (start, 0);
}
if (stop > 0) {
stop -= auparse->offset;
stop = MAX (stop, 0);
}
gst_au_parse_src_convert (auparse, GST_FORMAT_BYTES, start,
GST_FORMAT_TIME, &start);
gst_au_parse_src_convert (auparse, GST_FORMAT_BYTES, stop,
GST_FORMAT_TIME, &stop);
}
if (auparse->srcpad) {
GST_INFO_OBJECT (auparse,
"new segment: %" GST_TIME_FORMAT " ... %" GST_TIME_FORMAT,
GST_TIME_ARGS (start), GST_TIME_ARGS (stop));
new_event = gst_event_new_new_segment_full (update, rate, arate,
GST_FORMAT_TIME, start, stop, start);
ret = gst_pad_push_event (auparse->srcpad, new_event);
}
auparse->buffer_offset = offset;
gst_event_unref (event);
break;
}
case GST_EVENT_EOS:
if (!auparse->srcpad) {
GST_ELEMENT_ERROR (auparse, STREAM, WRONG_TYPE,
("No valid input found before end of stream"), (NULL));
}
/* fall-through */
default:
ret = gst_pad_event_default (pad, event);
break;
}
gst_object_unref (auparse);
return ret;
}
static gboolean
gst_au_parse_src_query (GstPad * pad, GstQuery * query)
{
GstAuParse *auparse;
gboolean ret = FALSE;
auparse = GST_AU_PARSE (gst_pad_get_parent (pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:{
GstFormat bformat = GST_FORMAT_BYTES;
GstFormat format;
gint64 len, val;
gst_query_parse_duration (query, &format, NULL);
if (!gst_pad_query_peer_duration (auparse->sinkpad, &bformat, &len)) {
GST_DEBUG_OBJECT (auparse, "failed to query upstream length");
break;
}
GST_OBJECT_LOCK (auparse);
len -= auparse->offset;
GST_OBJECT_UNLOCK (auparse);
ret = gst_au_parse_src_convert (auparse, bformat, len, format, &val);
if (ret) {
gst_query_set_duration (query, format, val);
}
break;
}
case GST_QUERY_POSITION:{
GstFormat bformat = GST_FORMAT_BYTES;
GstFormat format;
gint64 pos, val;
gst_query_parse_position (query, &format, NULL);
if (!gst_pad_query_peer_position (auparse->sinkpad, &bformat, &pos)) {
GST_DEBUG_OBJECT (auparse, "failed to query upstream position");
break;
}
GST_OBJECT_LOCK (auparse);
pos -= auparse->offset;
GST_OBJECT_UNLOCK (auparse);
ret = gst_au_parse_src_convert (auparse, GST_FORMAT_BYTES, pos,
format, &val);
if (ret) {
gst_query_set_position (query, format, val);
}
break;
}
case GST_QUERY_SEEKING:{
GstFormat format;
gst_query_parse_seeking (query, &format, NULL, NULL, NULL);
/* FIXME: query duration in 'format'
gst_query_set_seeking (query, format, TRUE, 0, duration);
*/
gst_query_set_seeking (query, format, TRUE, 0, GST_CLOCK_TIME_NONE);
ret = TRUE;
break;
}
default:
ret = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (auparse);
return ret;
}
static GstFlowReturn
gst_au_parse_chain (GstPad * pad, GstBuffer * buf)
{
GstFlowReturn ret = GST_FLOW_OK;
GstAuParse *auparse;
gint avail, sendnow = 0;
gint64 timestamp;
gint64 duration;
gint64 offset;
auparse = GST_AU_PARSE (gst_pad_get_parent (pad));
GST_LOG_OBJECT (auparse, "got buffer of size %u", GST_BUFFER_SIZE (buf));
gst_adapter_push (auparse->adapter, buf);
buf = NULL;
/* if we haven't seen any data yet... */
if (auparse->srcpad == NULL) {
if (gst_adapter_available (auparse->adapter) < AU_HEADER_SIZE) {
GST_DEBUG_OBJECT (auparse, "need more data to parse header");
ret = GST_FLOW_OK;
goto out;
}
ret = gst_au_parse_parse_header (auparse);
if (ret != GST_FLOW_OK)
goto out;
gst_pad_push_event (auparse->srcpad,
gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_TIME,
0, GST_CLOCK_TIME_NONE, 0));
}
avail = gst_adapter_available (auparse->adapter);
if (auparse->sample_size > 0) {
/* Ensure we push a buffer that's a multiple of the frame size downstream */
sendnow = avail - (avail % auparse->sample_size);
} else {
/* It's something non-trivial (such as ADPCM), we don't understand it, so
* just push downstream and assume it will know what to do with it */
sendnow = avail;
}
if (sendnow > 0) {
GstBuffer *outbuf;
const guint8 *data;
gint64 pos;
ret = gst_pad_alloc_buffer_and_set_caps (auparse->srcpad,
auparse->buffer_offset, sendnow, GST_PAD_CAPS (auparse->srcpad),
&outbuf);
if (ret != GST_FLOW_OK) {
GST_DEBUG_OBJECT (auparse, "pad alloc flow: %s", gst_flow_get_name (ret));
goto out;
}
data = gst_adapter_peek (auparse->adapter, sendnow);
memcpy (GST_BUFFER_DATA (outbuf), data, sendnow);
gst_adapter_flush (auparse->adapter, sendnow);
pos = auparse->buffer_offset - auparse->offset;
pos = MAX (pos, 0);
if (auparse->sample_size > 0 && auparse->samplerate > 0) {
gst_au_parse_src_convert (auparse, GST_FORMAT_BYTES, pos,
GST_FORMAT_DEFAULT, &offset);
gst_au_parse_src_convert (auparse, GST_FORMAT_BYTES, pos,
GST_FORMAT_TIME, ×tamp);
gst_au_parse_src_convert (auparse, GST_FORMAT_BYTES,
sendnow, GST_FORMAT_TIME, &duration);
GST_BUFFER_OFFSET (outbuf) = offset;
GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
GST_BUFFER_DURATION (outbuf) = duration;
}
auparse->buffer_offset += sendnow;
ret = gst_pad_push (auparse->srcpad, outbuf);
}
out:
gst_object_unref (auparse);
return ret;
}
