gdouble play_speed;
gdouble play_scale;
- GstClockTime ts_wraparound;
- GstClockTime prev_timestamp;
+ GstClockTime exttimestamp;
};
/* Filter signals and args */
static GstStateChangeReturn gst_base_rtp_depayload_change_state (GstElement *
element, GstStateChange transition);
-static GstFlowReturn gst_base_rtp_depayload_add_to_queue (GstBaseRTPDepayload *
- filter, GstBuffer * in);
-static GstFlowReturn gst_base_rtp_depayload_process (GstBaseRTPDepayload *
- filter, GstBuffer * rtp_buf);
static void gst_base_rtp_depayload_set_gst_timestamp
(GstBaseRTPDepayload * filter, guint32 timestamp, GstBuffer * buf);
-static void gst_base_rtp_depayload_wait (GstBaseRTPDepayload * filter,
- GstClockTime time);
GST_BOILERPLATE (GstBaseRTPDepayload, gst_base_rtp_depayload, GstElement,
GST_TYPE_ELEMENT);
g_object_class_install_property (gobject_class, PROP_QUEUE_DELAY,
g_param_spec_uint ("queue_delay", "Queue Delay",
- "Amount of ms to queue/buffer", 0, G_MAXUINT, DEFAULT_QUEUE_DELAY,
- G_PARAM_READWRITE));
+ "Amount of ms to queue/buffer, deprecated", 0, G_MAXUINT,
+ DEFAULT_QUEUE_DELAY, G_PARAM_READWRITE));
gstelement_class->change_state = gst_base_rtp_depayload_change_state;
- klass->add_to_queue = gst_base_rtp_depayload_add_to_queue;
klass->set_gst_timestamp = gst_base_rtp_depayload_set_gst_timestamp;
GST_DEBUG_CATEGORY_INIT (basertpdepayload_debug, "basertpdepayload", 0,
static void
gst_base_rtp_depayload_finalize (GObject * object)
{
- GstBuffer *buf;
GstBaseRTPDepayload *filter = GST_BASE_RTP_DEPAYLOAD (object);
- while ((buf = g_queue_pop_head (filter->queue)))
- gst_buffer_unref (buf);
g_queue_free (filter->queue);
G_OBJECT_CLASS (parent_class)->finalize (object);
else
priv->play_scale = 1.0;
- priv->prev_timestamp = -1;
+ priv->exttimestamp = -1;
if (bclass->set_caps)
res = bclass->set_caps (filter, caps);
GstBaseRTPDepayload *filter;
GstBaseRTPDepayloadClass *bclass;
GstFlowReturn ret = GST_FLOW_OK;
+ GstBuffer *out_buf;
filter = GST_BASE_RTP_DEPAYLOAD (GST_OBJECT_PARENT (pad));
bclass = GST_BASE_RTP_DEPAYLOAD_GET_CLASS (filter);
- if (filter->queue_delay == 0) {
- GST_DEBUG_OBJECT (filter, "Pushing directly!");
- ret = gst_base_rtp_depayload_process (filter, in);
- } else {
- if (bclass->add_to_queue)
- ret = bclass->add_to_queue (filter, in);
- else
- goto no_delay;
+ /* let's send it out to processing */
+ out_buf = bclass->process (filter, in);
+ if (out_buf) {
+ guint32 timestamp;
+
+ timestamp = gst_rtp_buffer_get_timestamp (in);
+
+ /* push buffer with timestamp
+ * We are assuming here that the timestamp of the last RTP buffer
+ * is the same as the timestamp wanted on the collector. If this is not a
+ * desired result, the process function should push itself with another
+ * timestamp and return NULL.
+ */
+ ret = gst_base_rtp_depayload_push_ts (filter, timestamp, out_buf);
}
+ gst_buffer_unref (in);
+
return ret;
/* ERRORS */
gst_buffer_unref (in);
return GST_FLOW_NOT_NEGOTIATED;
}
-no_delay:
- {
- GST_ELEMENT_ERROR (filter, STREAM, NOT_IMPLEMENTED,
- (NULL), ("This element cannot operate with delay"));
- gst_buffer_unref (in);
- return GST_FLOW_NOT_SUPPORTED;
- }
}
static gboolean
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NEWSEGMENT:
{
- /* intercept NEWSEGMENT events only if the packet scheduler thread
- is active */
- if (filter->thread) {
- GST_DEBUG_OBJECT (filter,
- "Upstream sent a NEWSEGMENT, handle in worker thread.");
- /* the worker thread will assign a new RTP-TS<->GST-TS mapping
- * based on the next processed RTP packet */
- filter->need_newsegment = TRUE;
- gst_event_unref (event);
- break;
- } else {
- GstFormat format;
-
- gst_event_parse_new_segment (event, NULL, NULL, &format, NULL, NULL,
- NULL);
- if (format != GST_FORMAT_TIME)
- goto wrong_format;
-
- GST_DEBUG_OBJECT (filter,
- "Upstream sent a NEWSEGMENT, passing through.");
- }
- /* note: pass through to default if no thread running */
+ GstFormat format;
+
+ gst_event_parse_new_segment (event, NULL, NULL, &format, NULL, NULL,
+ NULL);
+ if (format != GST_FORMAT_TIME)
+ goto wrong_format;
+
+ GST_DEBUG_OBJECT (filter, "Upstream sent a NEWSEGMENT, passing through.");
+ /* fallthrough */
}
default:
/* pass other events forward */
}
static GstFlowReturn
-gst_base_rtp_depayload_add_to_queue (GstBaseRTPDepayload * filter,
- GstBuffer * in)
-{
- GQueue *queue = filter->queue;
- int i;
-
- /* our first packet, just push it */
- QUEUE_LOCK (filter);
- if (g_queue_is_empty (queue)) {
- g_queue_push_tail (queue, in);
- QUEUE_UNLOCK (filter);
- } else {
- guint16 seqnum, queueseq;
- guint32 timestamp;
-
- seqnum = gst_rtp_buffer_get_seq (in);
- queueseq = gst_rtp_buffer_get_seq (GST_BUFFER (g_queue_peek_head (queue)));
-
- /* look for right place to insert it */
- i = 0;
-
- /* Check for seqnum wraparound.
- * Seqnums in the lowest quadrant of the 0-65535 space are considered to
- * be greater than seqnums in the highest quadrant of this space. */
- while (seqnum > queueseq || (seqnum < 16384 && queueseq > 49150)) {
- gpointer data;
-
- i++;
- data = g_queue_peek_nth (queue, i);
- if (!data)
- break;
-
- queueseq = gst_rtp_buffer_get_seq (GST_BUFFER (data));
- }
-
- /* now insert it at that place */
- g_queue_push_nth (queue, in, i);
- QUEUE_UNLOCK (filter);
-
- timestamp = gst_rtp_buffer_get_timestamp (in);
-
- GST_DEBUG_OBJECT (filter,
- "Packet added to queue %d at pos %d timestamp %u sn %d",
- g_queue_get_length (queue), i, timestamp, seqnum);
- }
- return GST_FLOW_OK;
-}
-
-static GstFlowReturn
gst_base_rtp_depayload_push_full (GstBaseRTPDepayload * filter,
gboolean do_ts, guint32 timestamp, GstBuffer * out_buf)
{
return gst_base_rtp_depayload_push_full (filter, FALSE, 0, out_buf);
}
-static GstFlowReturn
-gst_base_rtp_depayload_process (GstBaseRTPDepayload * filter,
- GstBuffer * rtp_buf)
-{
- GstBaseRTPDepayloadClass *bclass;
- GstBuffer *out_buf;
- GstFlowReturn ret = GST_FLOW_OK;
-
- bclass = GST_BASE_RTP_DEPAYLOAD_GET_CLASS (filter);
-
- /* let's send it out to processing */
- out_buf = bclass->process (filter, rtp_buf);
- if (out_buf) {
- guint32 timestamp = gst_rtp_buffer_get_timestamp (rtp_buf);
-
- /* push buffer with timestamp
- * We are assuming here that the timestamp of the last RTP buffer
- * is the same as the timestamp wanted on the collector. If this is not a
- * desired result, the process function should push itself with another
- * timestamp and return NULL.
- */
- ret = gst_base_rtp_depayload_push_ts (filter, timestamp, out_buf);
- }
- gst_buffer_unref (rtp_buf);
-
- return ret;
-}
-
static void
gst_base_rtp_depayload_set_gst_timestamp (GstBaseRTPDepayload * filter,
guint32 timestamp, GstBuffer * buf)
{
GstClockTime ts, adjusted, exttimestamp;
GstBaseRTPDepayloadPrivate *priv;
- guint64 diff;
priv = filter->priv;
if (priv->clock_base == -1)
priv->clock_base = timestamp;
- if (priv->prev_timestamp == -1) {
- priv->prev_timestamp = timestamp;
- priv->ts_wraparound = 0;
- }
-
- /* check for timestamp wraparound */
- exttimestamp = timestamp + priv->ts_wraparound;
-
- if (exttimestamp < priv->prev_timestamp)
- diff = priv->prev_timestamp - exttimestamp;
- else
- diff = exttimestamp - priv->prev_timestamp;
-
- if (diff > G_MAXINT32) {
- /* timestamp went backwards more than allowed, we wrap around and get
- * updated extended timestamp. */
- priv->ts_wraparound += (G_GINT64_CONSTANT (1) << 32);
- exttimestamp = timestamp + priv->ts_wraparound;
- }
- priv->prev_timestamp = exttimestamp;
+ /* get extended timestamp */
+ exttimestamp = gst_rtp_buffer_ext_timestamp (&priv->exttimestamp, timestamp);
/* rtp timestamps are based on the clock_rate
* gst timesamps are in nanoseconds */
ts = gst_util_uint64_scale_int (exttimestamp, GST_SECOND, filter->clock_rate);
GST_DEBUG_OBJECT (filter,
- "timestamp: %u, wrap %" G_GUINT64_FORMAT ", clockrate : %u", timestamp,
- priv->ts_wraparound, filter->clock_rate);
+ "timestamp: %u, exttimestamp %" G_GUINT64_FORMAT ", clockrate : %u",
+ timestamp, exttimestamp, filter->clock_rate);
/* add delay to timestamp */
adjusted = ts + (filter->queue_delay * GST_MSECOND);
}
}
-static void
-gst_base_rtp_depayload_queue_release (GstBaseRTPDepayload * filter)
-{
- GQueue *queue = filter->queue;
- guint32 headts, tailts;
- GstBaseRTPDepayloadClass *bclass;
- gfloat q_size_secs;
- guint maxtsunits;
-
- if (g_queue_is_empty (queue))
- return;
-
- /* if our queue is getting to big (more than RTP_QUEUEDELAY ms of data)
- * release heading buffers
- */
- /*GST_DEBUG_OBJECT (filter, "clockrate %d, queue_delay %d", filter->clock_rate,
- filter->queue_delay); */
- q_size_secs = (gfloat) filter->queue_delay / 1000;
- maxtsunits = (gfloat) filter->clock_rate * q_size_secs;
-
- QUEUE_LOCK (filter);
- headts =
- gst_rtp_buffer_get_timestamp (GST_BUFFER (g_queue_peek_head (queue)));
- tailts =
- gst_rtp_buffer_get_timestamp (GST_BUFFER (g_queue_peek_tail (queue)));
-
- bclass = GST_BASE_RTP_DEPAYLOAD_GET_CLASS (filter);
-
- /*GST_DEBUG("maxtsunit is %u %u %u %u", maxtsunits, headts, tailts, headts - tailts); */
- while (headts - tailts > maxtsunits) {
- GST_DEBUG_OBJECT (filter, "Poping packet from queue");
- if (bclass->process) {
- GstBuffer *in = g_queue_pop_head (queue);
-
- gst_base_rtp_depayload_process (filter, in);
- }
- headts =
- gst_rtp_buffer_get_timestamp (GST_BUFFER (g_queue_peek_head (queue)));
- }
- QUEUE_UNLOCK (filter);
-}
-
-
-static gpointer
-gst_base_rtp_depayload_thread (GstBaseRTPDepayload * filter)
-{
- while (filter->thread_running) {
- gst_base_rtp_depayload_queue_release (filter);
- /* sleep for 5msec (XXX: 5msec is a value that works for audio and video,
- * should be adjusted based on frequency of incoming packet,
- * or by data comsumption rate of the sink (depends on how
- * clock-drift compensation is implemented) */
- gst_base_rtp_depayload_wait (filter, GST_MSECOND * 5);
- }
- return NULL;
-}
-
-static gboolean
-gst_base_rtp_depayload_start_thread (GstBaseRTPDepayload * filter)
-{
- /* only launch the thread if processing is needed */
- if (filter->queue_delay) {
- GST_DEBUG_OBJECT (filter, "Starting queue release thread");
- QUEUE_LOCK_INIT (filter);
- filter->thread_running = TRUE;
- filter->thread =
- g_thread_create ((GThreadFunc) gst_base_rtp_depayload_thread, filter,
- TRUE, NULL);
- GST_DEBUG_OBJECT (filter, "Started queue release thread");
- }
- return TRUE;
-}
-
-static gboolean
-gst_base_rtp_depayload_stop_thread (GstBaseRTPDepayload * filter)
-{
- filter->thread_running = FALSE;
-
- if (filter->thread) {
- g_thread_join (filter->thread);
- filter->thread = NULL;
- }
- QUEUE_LOCK_FREE (filter);
- return TRUE;
-}
-
-static void
-gst_base_rtp_depayload_wait (GstBaseRTPDepayload * filter, GstClockTime time)
-{
- GstClockID id;
- GstClock *clock;
- GstClockTime base;
-
- g_return_if_fail (GST_CLOCK_TIME_IS_VALID (time));
-
- GST_OBJECT_LOCK (filter);
- if ((clock = GST_ELEMENT_CLOCK (filter)) == NULL)
- goto no_clock;
- gst_object_ref (clock);
- GST_OBJECT_UNLOCK (filter);
-
- base = gst_clock_get_time (clock);
- id = gst_clock_new_single_shot_id (clock, base + time);
-
- gst_object_unref (clock);
-
- gst_clock_id_wait (id, NULL);
- gst_clock_id_unref (id);
-
- return;
-
-no_clock:
- {
- GST_DEBUG_OBJECT (filter, "No clock given yet");
- GST_OBJECT_UNLOCK (filter);
- return;
- }
-}
-
static GstStateChangeReturn
gst_base_rtp_depayload_change_state (GstElement * element,
GstStateChange transition)
filter = GST_BASE_RTP_DEPAYLOAD (element);
- /* we disallow changing the state from the thread */
- if (g_thread_self () == filter->thread)
- goto wrong_thread;
-
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
- if (!gst_base_rtp_depayload_start_thread (filter))
- goto start_failed;
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
/* clock_rate needs to be overwritten by child */
filter->clock_rate = 0;
filter->priv->clock_base = -1;
- filter->priv->ts_wraparound = 0;
+ filter->priv->exttimestamp = -1;
filter->need_newsegment = TRUE;
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
case GST_STATE_CHANGE_PAUSED_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_NULL:
- gst_base_rtp_depayload_stop_thread (filter);
break;
default:
break;
}
return ret;
-
- /* ERRORS */
-wrong_thread:
- {
- GST_ELEMENT_ERROR (filter, CORE, STATE_CHANGE,
- (NULL), ("cannot perform a state change from this thread"));
- return GST_STATE_CHANGE_FAILURE;
- }
-start_failed:
- {
- /* start method should have posted an error message */
- return GST_STATE_CHANGE_FAILURE;
- }
}
static void
projects / platform / upstream / gst-plugins-base.git / commitdiff