static GstFlowReturn
gst_agregator_collected (GstCollectPads * pads, gpointer user_data)
{
GstAggregator *aggregator = GST_AGGREGATOR (user_data);
GstBuffer *inbuf;
GstCollectData *collect_data = NULL;
guint outsize = 0;
GSList *walk;
walk = pads->data;
for (walk = pads->data; walk; walk = walk->next) {
GstCollectData *tmp = (GstCollectData *) walk->data;
if (tmp->buffer) {
collect_data = tmp;
break;
}
}
/* can only happen when no pads to collect or all EOS */
if (collect_data == NULL)
goto eos;
outsize = gst_buffer_get_size (collect_data->buffer);
inbuf = gst_collect_pads_take_buffer (pads, collect_data, outsize);
if (!inbuf)
goto eos;
if (aggregator->first) {
GstSegment segment;
gst_segment_init (&segment, GST_FORMAT_BYTES);
gst_pad_push_event (aggregator->srcpad,
gst_event_new_stream_start ("test"));
gst_pad_push_event (aggregator->srcpad, gst_event_new_segment (&segment));
aggregator->first = FALSE;
}
/* just forward the first buffer */
GST_DEBUG_OBJECT (aggregator, "forward buffer %p", inbuf);
return gst_pad_push (aggregator->srcpad, inbuf);
/* ERRORS */
eos:
{
GST_DEBUG_OBJECT (aggregator, "no data available, must be EOS");
gst_pad_push_event (aggregator->srcpad, gst_event_new_eos ());
return GST_FLOW_EOS;
}
}
static GstFlowReturn
gst_interleave_collected (GstCollectPads * pads, GstInterleave * self)
{
guint size;
GstBuffer *outbuf = NULL;
GstFlowReturn ret = GST_FLOW_OK;
GSList *collected;
guint nsamples;
guint ncollected = 0;
gboolean empty = TRUE;
gint width = self->width / 8;
GstMapInfo write_info;
GstClockTime timestamp = -1;
/* FIXME: send caps and tags after stream-start */
#if 0
if (self->send_stream_start) {
gchar s_id[32];
/* stream-start (FIXME: create id based on input ids) */
g_snprintf (s_id, sizeof (s_id), "interleave-%08x", g_random_int ());
gst_pad_push_event (self->src, gst_event_new_stream_start (s_id));
self->send_stream_start = FALSE;
}
#endif
size = gst_collect_pads_available (pads);
if (size == 0)
goto eos;
g_return_val_if_fail (self->func != NULL, GST_FLOW_NOT_NEGOTIATED);
g_return_val_if_fail (self->width > 0, GST_FLOW_NOT_NEGOTIATED);
g_return_val_if_fail (self->channels > 0, GST_FLOW_NOT_NEGOTIATED);
g_return_val_if_fail (self->rate > 0, GST_FLOW_NOT_NEGOTIATED);
g_return_val_if_fail (size % width == 0, GST_FLOW_ERROR);
GST_DEBUG_OBJECT (self, "Starting to collect %u bytes from %d channels", size,
self->channels);
nsamples = size / width;
outbuf = gst_buffer_new_allocate (NULL, size * self->channels, NULL);
if (outbuf == NULL || gst_buffer_get_size (outbuf) < size * self->channels) {
gst_buffer_unref (outbuf);
return GST_FLOW_NOT_NEGOTIATED;
}
gst_buffer_map (outbuf, &write_info, GST_MAP_WRITE);
memset (write_info.data, 0, size * self->channels);
for (collected = pads->data; collected != NULL; collected = collected->next) {
GstCollectData *cdata;
GstBuffer *inbuf;
guint8 *outdata;
GstMapInfo input_info;
cdata = (GstCollectData *) collected->data;
inbuf = gst_collect_pads_take_buffer (pads, cdata, size);
if (inbuf == NULL) {
GST_DEBUG_OBJECT (cdata->pad, "No buffer available");
goto next;
}
ncollected++;
gst_buffer_map (inbuf, &input_info, GST_MAP_READ);
if (timestamp == -1)
timestamp = GST_BUFFER_TIMESTAMP (inbuf);
if (GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_GAP))
goto next;
empty = FALSE;
outdata =
write_info.data + width * GST_INTERLEAVE_PAD_CAST (cdata->pad)->channel;
self->func (outdata, input_info.data, self->channels, nsamples);
gst_buffer_unmap (inbuf, &input_info);
next:
if (inbuf)
gst_buffer_unref (inbuf);
}
if (ncollected == 0) {
gst_buffer_unmap (outbuf, &write_info);
goto eos;
}
GST_OBJECT_LOCK (self);
if (self->pending_segment) {
GstEvent *event;
GstSegment segment;
event = self->pending_segment;
self->pending_segment = NULL;
GST_OBJECT_UNLOCK (self);
/* convert the input segment to time now */
gst_event_copy_segment (event, &segment);
if (segment.format != GST_FORMAT_TIME) {
gst_event_unref (event);
/* not time, convert */
switch (segment.format) {
case GST_FORMAT_BYTES:
segment.start *= width;
if (segment.stop != -1)
segment.stop *= width;
if (segment.position != -1)
segment.position *= width;
/* fallthrough for the samples case */
case GST_FORMAT_DEFAULT:
segment.start =
gst_util_uint64_scale_int (segment.start, GST_SECOND, self->rate);
if (segment.stop != -1)
segment.stop =
gst_util_uint64_scale_int (segment.stop, GST_SECOND,
self->rate);
if (segment.position != -1)
segment.position =
gst_util_uint64_scale_int (segment.position, GST_SECOND,
self->rate);
break;
default:
GST_WARNING ("can't convert segment values");
segment.start = 0;
segment.stop = -1;
segment.position = 0;
break;
}
event = gst_event_new_segment (&segment);
}
gst_pad_push_event (self->src, event);
GST_OBJECT_LOCK (self);
}
GST_OBJECT_UNLOCK (self);
if (timestamp != -1) {
self->offset = gst_util_uint64_scale_int (timestamp, self->rate,
GST_SECOND);
self->timestamp = timestamp;
}
GST_BUFFER_TIMESTAMP (outbuf) = self->timestamp;
GST_BUFFER_OFFSET (outbuf) = self->offset;
self->offset += nsamples;
self->timestamp = gst_util_uint64_scale_int (self->offset,
GST_SECOND, self->rate);
GST_BUFFER_DURATION (outbuf) =
self->timestamp - GST_BUFFER_TIMESTAMP (outbuf);
if (empty)
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_GAP);
gst_buffer_unmap (outbuf, &write_info);
GST_LOG_OBJECT (self, "pushing outbuf, timestamp %" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)));
ret = gst_pad_push (self->src, outbuf);
return ret;
eos:
{
GST_DEBUG_OBJECT (self, "no data available, must be EOS");
if (outbuf)
gst_buffer_unref (outbuf);
gst_pad_push_event (self->src, gst_event_new_eos ());
return GST_FLOW_EOS;
}
}
static GstFlowReturn
gst_interleave_collected (GstCollectPads * pads, GstInterleave * self)
{
guint size;
GstBuffer *outbuf;
GstFlowReturn ret = GST_FLOW_OK;
GSList *collected;
guint nsamples;
guint ncollected = 0;
gboolean empty = TRUE;
gint width = self->width / 8;
g_return_val_if_fail (self->func != NULL, GST_FLOW_NOT_NEGOTIATED);
g_return_val_if_fail (self->width > 0, GST_FLOW_NOT_NEGOTIATED);
g_return_val_if_fail (self->channels > 0, GST_FLOW_NOT_NEGOTIATED);
g_return_val_if_fail (self->rate > 0, GST_FLOW_NOT_NEGOTIATED);
size = gst_collect_pads_available (pads);
g_return_val_if_fail (size % width == 0, GST_FLOW_ERROR);
GST_DEBUG_OBJECT (self, "Starting to collect %u bytes from %d channels", size,
self->channels);
nsamples = size / width;
ret =
gst_pad_alloc_buffer (self->src, GST_BUFFER_OFFSET_NONE,
size * self->channels, GST_PAD_CAPS (self->src), &outbuf);
if (ret != GST_FLOW_OK) {
return ret;
} else if (outbuf == NULL || GST_BUFFER_SIZE (outbuf) < size * self->channels) {
gst_buffer_unref (outbuf);
return GST_FLOW_NOT_NEGOTIATED;
} else if (!gst_caps_is_equal (GST_BUFFER_CAPS (outbuf),
GST_PAD_CAPS (self->src))) {
gst_buffer_unref (outbuf);
return GST_FLOW_NOT_NEGOTIATED;
}
memset (GST_BUFFER_DATA (outbuf), 0, size * self->channels);
for (collected = pads->data; collected != NULL; collected = collected->next) {
GstCollectData *cdata;
GstBuffer *inbuf;
guint8 *outdata;
cdata = (GstCollectData *) collected->data;
inbuf = gst_collect_pads_take_buffer (pads, cdata, size);
if (inbuf == NULL) {
GST_DEBUG_OBJECT (cdata->pad, "No buffer available");
goto next;
}
ncollected++;
if (GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_GAP))
goto next;
empty = FALSE;
outdata =
GST_BUFFER_DATA (outbuf) +
width * GST_INTERLEAVE_PAD_CAST (cdata->pad)->channel;
self->func (outdata, GST_BUFFER_DATA (inbuf), self->channels, nsamples);
next:
if (inbuf)
gst_buffer_unref (inbuf);
}
if (ncollected == 0)
goto eos;
if (self->segment_pending) {
GstEvent *event;
event = gst_event_new_new_segment_full (FALSE, self->segment_rate,
1.0, GST_FORMAT_TIME, self->timestamp, -1, self->segment_position);
gst_pad_push_event (self->src, event);
self->segment_pending = FALSE;
self->segment_position = 0;
}
GST_BUFFER_TIMESTAMP (outbuf) = self->timestamp;
GST_BUFFER_OFFSET (outbuf) = self->offset;
self->offset += nsamples;
self->timestamp = gst_util_uint64_scale_int (self->offset,
GST_SECOND, self->rate);
GST_BUFFER_DURATION (outbuf) = self->timestamp -
GST_BUFFER_TIMESTAMP (outbuf);
if (empty)
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_GAP);
GST_LOG_OBJECT (self, "pushing outbuf, timestamp %" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)));
ret = gst_pad_push (self->src, outbuf);
return ret;
eos:
{
GST_DEBUG_OBJECT (self, "no data available, must be EOS");
gst_buffer_unref (outbuf);
gst_pad_push_event (self->src, gst_event_new_eos ());
return GST_FLOW_UNEXPECTED;
}
}
