static GstFlowReturn
splitmux_part_pad_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
{
GstSplitMuxPartPad *part_pad = SPLITMUX_PART_PAD_CAST (pad);
GstSplitMuxPartReader *reader = part_pad->reader;
GstDataQueueItem *item;
GstClockTimeDiff offset;
GST_LOG_OBJECT (reader, "Pad %" GST_PTR_FORMAT " %" GST_PTR_FORMAT, pad, buf);
SPLITMUX_PART_LOCK (reader);
if (reader->prep_state == PART_STATE_PREPARING_COLLECT_STREAMS ||
reader->prep_state == PART_STATE_PREPARING_MEASURE_STREAMS) {
handle_buffer_measuring (reader, part_pad, buf);
gst_buffer_unref (buf);
SPLITMUX_PART_UNLOCK (reader);
return GST_FLOW_OK;
}
if (!block_until_can_push (reader)) {
/* Flushing */
SPLITMUX_PART_UNLOCK (reader);
gst_buffer_unref (buf);
return GST_FLOW_FLUSHING;
}
/* Adjust buffer timestamps */
offset = reader->start_offset + part_pad->segment.base;
offset -= part_pad->initial_ts_offset;
if (GST_BUFFER_PTS_IS_VALID (buf))
GST_BUFFER_PTS (buf) += offset;
if (GST_BUFFER_DTS_IS_VALID (buf))
GST_BUFFER_DTS (buf) += offset;
/* We are active, and one queue is empty, place this buffer in
* the dataqueue */
GST_LOG_OBJECT (reader, "Enqueueing buffer %" GST_PTR_FORMAT, buf);
item = g_slice_new (GstDataQueueItem);
item->destroy = (GDestroyNotify) splitmux_part_free_queue_item;
item->object = GST_MINI_OBJECT (buf);
item->size = gst_buffer_get_size (buf);
item->duration = GST_BUFFER_DURATION (buf);
if (item->duration == GST_CLOCK_TIME_NONE)
item->duration = 0;
item->visible = TRUE;
gst_object_ref (part_pad);
SPLITMUX_PART_UNLOCK (reader);
if (!gst_data_queue_push (part_pad->queue, item)) {
splitmux_part_free_queue_item (item);
gst_object_unref (part_pad);
return GST_FLOW_FLUSHING;
}
gst_object_unref (part_pad);
return GST_FLOW_OK;
}
static GstFlowReturn gst_scream_queue_sink_chain(GstPad *pad, GstObject *parent, GstBuffer *buffer)
{
GstScreamQueue *self = GST_SCREAM_QUEUE(parent);
GstRTPBuffer rtp_buffer = GST_RTP_BUFFER_INIT;
GstFlowReturn flow_ret = GST_FLOW_OK;
GstScreamDataQueueRtpItem *rtp_item;
if (GST_PAD_IS_FLUSHING(pad)) {
flow_ret = GST_FLOW_FLUSHING;
goto end;
}
if (!gst_rtp_buffer_map(buffer, GST_MAP_READ, &rtp_buffer)) {
flow_ret = GST_FLOW_ERROR;
goto end;
}
rtp_item = g_slice_new(GstScreamDataQueueRtpItem);
((GstDataQueueItem *)rtp_item)->object = GST_MINI_OBJECT(buffer);
((GstDataQueueItem *)rtp_item)->size = gst_buffer_get_size(buffer);
((GstDataQueueItem *)rtp_item)->visible = TRUE;
((GstDataQueueItem *)rtp_item)->duration = GST_BUFFER_DURATION(buffer);
((GstDataQueueItem *)rtp_item)->destroy = (GDestroyNotify) gst_scream_data_queue_rtp_item_free;
((GstScreamDataQueueItem *)rtp_item)->type = GST_SCREAM_DATA_QUEUE_ITEM_TYPE_RTP;
((GstScreamDataQueueItem *)rtp_item)->rtp_ssrc = gst_rtp_buffer_get_ssrc(&rtp_buffer);
rtp_item->rtp_pt = gst_rtp_buffer_get_payload_type(&rtp_buffer);
rtp_item->gst_ts = GST_BUFFER_PTS(buffer);
rtp_item->rtp_seq = gst_rtp_buffer_get_seq(&rtp_buffer);
rtp_item->rtp_ts = gst_rtp_buffer_get_timestamp(&rtp_buffer);
rtp_item->rtp_marker = gst_rtp_buffer_get_marker(&rtp_buffer);
rtp_item->rtp_payload_size = gst_rtp_buffer_get_payload_len(&rtp_buffer);
rtp_item->enqueued_time = get_gst_time_us(self);
gst_rtp_buffer_unmap(&rtp_buffer);
if (self->pass_through) {
rtp_item->adapted = FALSE;
GST_LOG_OBJECT(self, "passing through: pt = %u, seq: %u, pass: %u", rtp_item->rtp_pt, rtp_item->rtp_seq, self->pass_through);
gst_data_queue_push(self->approved_packets, (GstDataQueueItem *)rtp_item);
goto end;
}
GST_LOG_OBJECT(self, "queuing: pt = %u, seq: %u, pass: %u", rtp_item->rtp_pt, rtp_item->rtp_seq, self->pass_through);
g_async_queue_push(self->incoming_packets, (gpointer)rtp_item);
end:
return flow_ret;
}
static void approve_transmit_cb(guint stream_id, GstScreamQueue *self) {
GstScreamDataQueueRtpItem *item;
GstScreamStream *stream;
g_rw_lock_reader_lock(&self->lock);
stream = g_hash_table_lookup(self->streams, GUINT_TO_POINTER(stream_id));
g_rw_lock_reader_unlock(&self->lock);
if ((item = gst_atomic_queue_pop(stream->packet_queue))) {
stream->enqueued_payload_size -= item->rtp_payload_size;
stream->enqueued_packets--;
GST_LOG_OBJECT(self, "approving: pt = %u, seq: %u, pass: %u",
item->rtp_pt, item->rtp_seq, self->pass_through);
gst_data_queue_push(self->approved_packets, (GstDataQueueItem *)item);
} else
GST_LOG_OBJECT(self, "Got approve callback on an empty queue, or flushing");
}
static GstFlowReturn
gst_eglglessink_queue_buffer (GstEglGlesSink * eglglessink, GstBuffer * buf)
{
GstDataQueueItem *item;
GstFlowReturn last_flow;
g_mutex_lock (eglglessink->render_lock);
last_flow = eglglessink->last_flow;
g_mutex_unlock (eglglessink->render_lock);
if (last_flow != GST_FLOW_OK)
return last_flow;
item = g_slice_new0 (GstDataQueueItem);
item->object = GST_MINI_OBJECT_CAST (buf);
item->size = (buf ? GST_BUFFER_SIZE (buf) : 0);
item->duration = (buf ? GST_BUFFER_DURATION (buf) : GST_CLOCK_TIME_NONE);
item->visible = (buf ? TRUE : FALSE);
item->destroy = (GDestroyNotify) queue_item_destroy;
GST_DEBUG_OBJECT (eglglessink, "Queueing buffer %" GST_PTR_FORMAT, buf);
if (buf)
g_mutex_lock (eglglessink->render_lock);
if (!gst_data_queue_push (eglglessink->queue, item)) {
item->destroy (item);
g_mutex_unlock (eglglessink->render_lock);
GST_DEBUG_OBJECT (eglglessink, "Flushing");
return GST_FLOW_WRONG_STATE;
}
if (buf) {
GST_DEBUG_OBJECT (eglglessink, "Waiting for buffer to be rendered");
g_cond_wait (eglglessink->render_cond, eglglessink->render_lock);
GST_DEBUG_OBJECT (eglglessink, "Buffer rendered: %s",
gst_flow_get_name (eglglessink->last_flow));
last_flow = eglglessink->last_flow;
g_mutex_unlock (eglglessink->render_lock);
}
return (buf ? last_flow : GST_FLOW_OK);
}
static gboolean
splitmux_part_pad_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstSplitMuxPartPad *part_pad = SPLITMUX_PART_PAD_CAST (pad);
GstSplitMuxPartReader *reader = part_pad->reader;
gboolean ret = TRUE;
SplitMuxSrcPad *target;
GstDataQueueItem *item;
SPLITMUX_PART_LOCK (reader);
target = gst_object_ref (part_pad->target);
GST_LOG_OBJECT (reader, "Pad %" GST_PTR_FORMAT " event %" GST_PTR_FORMAT, pad,
event);
if (part_pad->flushing && GST_EVENT_TYPE (event) != GST_EVENT_FLUSH_STOP)
goto drop_event;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEGMENT:{
GstSegment *seg = &part_pad->segment;
GST_LOG_OBJECT (pad, "Received segment %" GST_PTR_FORMAT, event);
gst_event_copy_segment (event, seg);
gst_event_copy_segment (event, &part_pad->orig_segment);
if (seg->format != GST_FORMAT_TIME)
goto wrong_segment;
/* Adjust segment */
/* Adjust start/stop so the overall file is 0 + start_offset based */
if (seg->stop != -1) {
seg->stop -= seg->start;
seg->stop += seg->time + reader->start_offset;
}
seg->start = seg->time + reader->start_offset;
seg->time += reader->start_offset;
seg->position += reader->start_offset;
GST_LOG_OBJECT (pad, "Adjusted segment now %" GST_PTR_FORMAT, event);
/* Replace event */
gst_event_unref (event);
event = gst_event_new_segment (seg);
if (reader->prep_state != PART_STATE_PREPARING_COLLECT_STREAMS
&& reader->prep_state != PART_STATE_PREPARING_MEASURE_STREAMS)
break; /* Only do further stuff with segments during initial measuring */
/* Take the first segment from the first part */
if (target->segment.format == GST_FORMAT_UNDEFINED) {
gst_segment_copy_into (seg, &target->segment);
GST_DEBUG_OBJECT (reader,
"Target pad segment now %" GST_SEGMENT_FORMAT, &target->segment);
}
if (seg->stop != -1 && target->segment.stop != -1) {
GstClockTime stop = seg->base + seg->stop;
if (stop > target->segment.stop) {
target->segment.stop = stop;
GST_DEBUG_OBJECT (reader,
"Adjusting segment stop by %" GST_TIME_FORMAT
" output now %" GST_SEGMENT_FORMAT,
GST_TIME_ARGS (reader->start_offset), &target->segment);
}
}
GST_LOG_OBJECT (pad, "Forwarding segment %" GST_PTR_FORMAT, event);
break;
}
case GST_EVENT_EOS:{
GST_DEBUG_OBJECT (part_pad,
"State %u EOS event. MaxTS seen %" GST_TIME_FORMAT,
reader->prep_state, GST_TIME_ARGS (part_pad->max_ts));
if (reader->prep_state == PART_STATE_PREPARING_COLLECT_STREAMS ||
reader->prep_state == PART_STATE_PREPARING_MEASURE_STREAMS) {
/* Mark this pad as EOS */
part_pad->is_eos = TRUE;
if (splitmux_part_is_eos_locked (reader)) {
/* Finished measuring things, set state and tell the state change func
* so it can seek back to the start */
GST_LOG_OBJECT (reader,
"EOS while measuring streams. Resetting for ready");
reader->prep_state = PART_STATE_PREPARING_RESET_FOR_READY;
SPLITMUX_PART_BROADCAST (reader);
}
goto drop_event;
}
break;
}
case GST_EVENT_FLUSH_START:
reader->flushing = TRUE;
part_pad->flushing = TRUE;
GST_LOG_OBJECT (reader, "Pad %" GST_PTR_FORMAT " flushing dataqueue",
part_pad);
gst_data_queue_set_flushing (part_pad->queue, TRUE);
SPLITMUX_PART_BROADCAST (reader);
break;
case GST_EVENT_FLUSH_STOP:{
gst_data_queue_set_flushing (part_pad->queue, FALSE);
gst_data_queue_flush (part_pad->queue);
part_pad->seen_buffer = FALSE;
part_pad->flushing = FALSE;
part_pad->is_eos = FALSE;
reader->flushing = splitmux_is_flushing (reader);
GST_LOG_OBJECT (reader,
"%s pad %" GST_PTR_FORMAT " flush_stop. Overall flushing=%d",
reader->path, pad, reader->flushing);
SPLITMUX_PART_BROADCAST (reader);
break;
}
default:
break;
}
/* Don't send events downstream while preparing */
if (reader->prep_state != PART_STATE_READY)
goto drop_event;
/* Don't pass flush events - those are done by the parent */
if (GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_START ||
GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_STOP)
goto drop_event;
if (!block_until_can_push (reader)) {
SPLITMUX_PART_UNLOCK (reader);
gst_object_unref (target);
gst_event_unref (event);
return FALSE;
}
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_GAP:{
/* FIXME: Drop initial gap (if any) in each segment, not all GAPs */
goto drop_event;
}
default:
break;
}
/* We are active, and one queue is empty, place this buffer in
* the dataqueue */
gst_object_ref (part_pad->queue);
SPLITMUX_PART_UNLOCK (reader);
GST_LOG_OBJECT (reader, "Enqueueing event %" GST_PTR_FORMAT, event);
item = g_slice_new (GstDataQueueItem);
item->destroy = (GDestroyNotify) splitmux_part_free_queue_item;
item->object = GST_MINI_OBJECT (event);
item->size = 0;
item->duration = 0;
if (item->duration == GST_CLOCK_TIME_NONE)
item->duration = 0;
item->visible = FALSE;
if (!gst_data_queue_push (part_pad->queue, item)) {
splitmux_part_free_queue_item (item);
ret = FALSE;
}
gst_object_unref (part_pad->queue);
gst_object_unref (target);
return ret;
wrong_segment:
gst_event_unref (event);
gst_object_unref (target);
SPLITMUX_PART_UNLOCK (reader);
GST_ELEMENT_ERROR (reader, STREAM, FAILED, (NULL),
("Received non-time segment - reader %s pad %" GST_PTR_FORMAT,
reader->path, pad));
return FALSE;
drop_event:
GST_LOG_OBJECT (pad, "Dropping event %" GST_PTR_FORMAT
" from %" GST_PTR_FORMAT " on %" GST_PTR_FORMAT, event, pad, target);
gst_event_unref (event);
gst_object_unref (target);
SPLITMUX_PART_UNLOCK (reader);
return TRUE;
}
static void gst_scream_queue_srcpad_loop(GstScreamQueue *self)
{
GstScreamDataQueueItem *item;
GstScreamDataQueueRtpItem *rtp_item;
GstScreamStream *stream;
guint stream_id;
guint64 time_now_us, time_until_next_approve = 0;
GstBuffer *buffer;
time_now_us = get_gst_time_us(self);
if (G_UNLIKELY(time_now_us == 0)) {
goto end;
}
if (time_now_us >= self->next_approve_time) {
time_until_next_approve = gst_scream_controller_approve_transmits(self->scream_controller,
time_now_us);
} else {
GST_LOG_OBJECT(self, "Time is %" G_GUINT64_FORMAT ", waiting %" G_GUINT64_FORMAT,
time_now_us, self->next_approve_time);
}
/* Send all approved packets */
while (!gst_data_queue_is_empty(self->approved_packets)) {
if (G_UNLIKELY(!gst_data_queue_pop(self->approved_packets,
(GstDataQueueItem **)&rtp_item))) {
GST_WARNING_OBJECT(self, "Failed to pop from approved packets queue. Flushing?");
goto end; /* flushing */
}
buffer = GST_BUFFER(((GstDataQueueItem *)rtp_item)->object);
gst_pad_push(self->src_pad, buffer);
GST_LOG_OBJECT(self, "pushing: pt = %u, seq: %u, pass: %u", rtp_item->rtp_pt, rtp_item->rtp_seq, self->pass_through);
if (rtp_item->adapted) {
guint tmp_time;
stream_id = ((GstScreamDataQueueItem *)rtp_item)->rtp_ssrc;
tmp_time = gst_scream_controller_packet_transmitted(self->scream_controller, stream_id,
rtp_item->rtp_payload_size, rtp_item->rtp_seq, time_now_us);
time_until_next_approve = MIN(time_until_next_approve, tmp_time);
}
g_slice_free(GstScreamDataQueueRtpItem, rtp_item);
}
self->next_approve_time = time_now_us + time_until_next_approve;
GST_LOG_OBJECT(self, "Popping or waiting %" G_GUINT64_FORMAT, time_until_next_approve);
item = (GstScreamDataQueueItem *)g_async_queue_timeout_pop(self->incoming_packets, time_until_next_approve);
if (!item) {
goto end;
}
stream_id = item->rtp_ssrc;
if (item->type == GST_SCREAM_DATA_QUEUE_ITEM_TYPE_RTP) {
GstScreamDataQueueRtpItem *rtp_item = (GstScreamDataQueueRtpItem *)item;
stream = get_stream(self, item->rtp_ssrc, rtp_item->rtp_pt);
if (!stream) {
rtp_item->adapted = FALSE;
GST_LOG_OBJECT(self, "!adapted, approving: pt = %u, seq: %u, pass: %u",
rtp_item->rtp_pt, rtp_item->rtp_seq, self->pass_through);
gst_data_queue_push(self->approved_packets, (GstDataQueueItem *)item);
} else {
gst_atomic_queue_push(stream->packet_queue, rtp_item);
stream->enqueued_payload_size += rtp_item->rtp_payload_size;
stream->enqueued_packets++;
rtp_item->adapted = TRUE;
self->next_approve_time = 0;
gst_scream_controller_new_rtp_packet(self->scream_controller, stream_id, rtp_item->rtp_ts,
rtp_item->enqueued_time, stream->enqueued_payload_size, rtp_item->rtp_payload_size);
}
} else { /* item->type == GST_SCREAM_DATA_QUEUE_ITEM_TYPE_RTCP */
GstScreamDataQueueRtcpItem *rtcp_item = (GstScreamDataQueueRtcpItem *)item;
gst_scream_controller_incoming_feedback(self->scream_controller, stream_id, time_now_us,
rtcp_item->timestamp, rtcp_item->highest_seq, rtcp_item->n_loss, rtcp_item->n_ecn, rtcp_item->qbit);
((GstDataQueueItem *)item)->destroy(item);
}
end:
return;
}
