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gst-libs/gst/rtp/gstbasertpdepayload.*: Added rtp timestamp -> gst timestamp conversion.

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Original commit message from CVS:
2005-08-10  Philippe Khalaf <burger@speedy.org>
* gst-libs/gst/rtp/gstbasertpdepayload.c:
* gst-libs/gst/rtp/gstbasertpdepayload.h:
Added rtp timestamp -> gst timestamp conversion.
Fixed several problems with queue.
This commit is contained in:
Philippe Kalaf 2005-08-10 20:52:37 +00:00
parent b9b56ce7d3
commit b50d3fe5f6
3 changed files with 83 additions and 27 deletions
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6
ChangeLog
View file

@ -1,3 +1,9 @@
2005-08-10 Philippe Khalaf <burger@speedy.org>
* gst-libs/gst/rtp/gstbasertpdepayload.c:
* gst-libs/gst/rtp/gstbasertpdepayload.h:
Added rtp timestamp -> gst timestamp conversion.
Fixed several problems with queue.
2005-08-09 Tim-Philipp Müller <tim at centricular dot net>
* gst-libs/gst/audio/gstaudioclock.h:

100
gst-libs/gst/rtp/gstbasertpdepayload.c
View file

@ -42,15 +42,6 @@ static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
GST_STATIC_CAPS ("application/x-rtp-noheader")
);
/*static GstStaticPadTemplate src_factory =
GST_STATIC_PAD_TEMPLATE (
"src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
// GST_STATIC_CAPS ("video/x-h263")
GST_STATIC_CAPS("ANY")
);*/
static GstElementClass *parent_class = NULL;
static void gst_base_rtp_depayload_base_init (GstBaseRTPDepayloadClass * klass);
@ -59,6 +50,9 @@ static void gst_base_rtp_depayload_class_init (GstBaseRTPDepayloadClass *
static void gst_base_rtp_depayload_init (GstBaseRTPDepayload * filter,
gpointer g_class);
static void gst_base_rtp_depayload_push (GstBaseRTPDepayload * filter,
GstRTPBuffer * rtp_buf);
GType
gst_base_rtp_depayload_get_type (void)
{
@ -94,9 +88,11 @@ static gboolean gst_base_rtp_depayload_setcaps (GstPad * pad, GstCaps * caps);
static GstFlowReturn gst_base_rtp_depayload_chain (GstPad * pad,
GstBuffer * in);
static GstFlowReturn gst_base_rtp_depayload_add_to_queue (GstBaseRTPDepayload *
filter, GstRTPBuffer * in);
static GstBuffer *gst_base_rtp_depayload_set_gst_timestamp (GstRTPBuffer * in);
static GstFlowReturn gst_base_rtp_depayload_add_to_queue
(GstBaseRTPDepayload * filter, GstRTPBuffer * in);
static void gst_base_rtp_depayload_set_gst_timestamp
(GstBaseRTPDepayload * filter, guint32 timestamp, GstBuffer * buf);
static void
@ -129,7 +125,7 @@ gst_base_rtp_depayload_class_init (GstBaseRTPDepayloadClass * klass)
gobject_class->finalize = gst_base_rtp_depayload_finalize;
klass->add_to_queue = gst_base_rtp_depayload_add_to_queue;
klass->setgsttimestamp = gst_base_rtp_depayload_set_gst_timestamp;
klass->set_gst_timestamp = gst_base_rtp_depayload_set_gst_timestamp;
GST_DEBUG_CATEGORY_INIT (basertpdepayload_debug, "basertpdepayload", 0,
"Base class for RTP Depayloaders");
@ -222,7 +218,8 @@ gst_base_rtp_depayload_chain (GstPad * pad, GstBuffer * in)
GstBaseRTPDepayloadClass *bclass = GST_BASE_RTP_DEPAYLOAD_GET_CLASS (filter);
if (filter->process_only) {
bclass->process (filter, GST_RTPBUFFER (in));
GST_DEBUG ("Pushing directly!");
gst_base_rtp_depayload_push (filter, GST_RTPBUFFER (in));
} else {
if (bclass->add_to_queue)
ret = bclass->add_to_queue (filter, GST_RTPBUFFER (in));
@ -255,36 +252,89 @@ gst_base_rtp_depayload_add_to_queue (GstBaseRTPDepayload * filter,
i++;
// now insert it at that place
g_queue_push_nth (queue, in, i);
GST_DEBUG ("Packet added to queue %d at pos %d timestamp %d sn %d",
GST_DEBUG ("Packet added to queue %d at pos %d timestamp %u sn %d",
g_queue_get_length (queue), i, in->timestamp, in->seqnum);
// if our queue is getting to big (more than RTP_QUEUEDELAY ms of data)
// release heading buffers
GST_DEBUG ("clockrate %d, queu_delay %d", filter->clock_rate,
filter->queue_delay);
//GST_DEBUG("clockrate %d, queu_delay %d", filter->clock_rate, filter->queue_delay);
gfloat q_size_secs = (gfloat) filter->queue_delay / 1000;
guint maxtsunits = (gfloat) filter->clock_rate * q_size_secs;
GST_DEBUG ("maxtsunit is %d", maxtsunits);
GST_DEBUG ("maxtsunit is %u", maxtsunits);
GST_DEBUG ("ts %d %d %d %d", in->timestamp, in->seqnum,
GST_RTPBUFFER (g_queue_peek_tail (queue))->timestamp,
GST_RTPBUFFER (g_queue_peek_tail (queue))->seqnum);
while (GST_RTPBUFFER (g_queue_peek_tail (queue))->timestamp -
in->timestamp > maxtsunits) {
while (in->timestamp -
GST_RTPBUFFER (g_queue_peek_tail (queue))->timestamp > maxtsunits) {
GST_DEBUG ("Poping packet from queue");
GstBaseRTPDepayloadClass *bclass =
GST_BASE_RTP_DEPAYLOAD_GET_CLASS (filter);
if (bclass->process)
bclass->process (filter, GST_RTPBUFFER (g_queue_pop_tail (queue)));
if (bclass->process) {
GstRTPBuffer *in = g_queue_pop_tail (queue);
gst_base_rtp_depayload_push (filter, GST_RTPBUFFER (in));
}
}
}
return GST_FLOW_OK;
}
static GstBuffer *
gst_base_rtp_depayload_set_gst_timestamp (GstRTPBuffer * in)
static void
gst_base_rtp_depayload_push (GstBaseRTPDepayload * filter,
GstRTPBuffer * rtp_buf)
{
return NULL;
GstBaseRTPDepayloadClass *bclass = GST_BASE_RTP_DEPAYLOAD_GET_CLASS (filter);
GstBuffer *out_buf;
// let's send it out to processing
out_buf = bclass->process (filter, GST_RTPBUFFER (rtp_buf));
if (out_buf) {
// set the caps
gst_buffer_set_caps (GST_BUFFER (out_buf),
gst_pad_get_caps (filter->srcpad));
// set the timestamp
// I am assuming here that the timestamp of the last RTP buffer
// is the same as the timestamp wanted on the collector
// maybe i should add a way to override this timestamp from the
// depayloader child class
bclass->set_gst_timestamp (filter, rtp_buf->timestamp, out_buf);
// push it
GST_DEBUG ("Pushing buffer size %d, timestamp %u",
GST_BUFFER_SIZE (out_buf), GST_BUFFER_TIMESTAMP (out_buf));
gst_pad_push (filter->srcpad, GST_BUFFER (out_buf));
GST_DEBUG ("Pushed buffer");
}
}
static void
gst_base_rtp_depayload_set_gst_timestamp (GstBaseRTPDepayload * filter,
guint32 timestamp, GstBuffer * buf)
{
static gboolean first = TRUE;
// rtp timestamps are based on the clock_rate
// gst timesamps are in nanoseconds
GST_DEBUG ("calculating ts : timestamp : %u, clockrate : %u", timestamp,
filter->clock_rate);
guint64 ts = ((timestamp * GST_SECOND) / filter->clock_rate);
GST_BUFFER_TIMESTAMP (buf) = ts;
//GST_BUFFER_TIMESTAMP (buf) =
// (guint64)(((timestamp * GST_SECOND) / filter->clock_rate));
GST_DEBUG ("calculated ts %"
GST_TIME_FORMAT, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
// if this is the first buf send a discont
if (first) {
// send discont
GstEvent *event = gst_event_new_newsegment (1.0, GST_FORMAT_TIME,
ts, GST_CLOCK_TIME_NONE, 0);
gst_pad_push_event (filter->srcpad, event);
first = FALSE;
GST_DEBUG ("Pushed discont on this first buffer");
}
}
static void

4
gst-libs/gst/rtp/gstbasertpdepayload.h
View file

@ -81,11 +81,11 @@ struct _GstBaseRTPDepayloadClass
// pure virtual function, child must use this to process incoming
// rtp packets
GstFlowReturn (*process) (GstBaseRTPDepayload *base, GstRTPBuffer *in);
GstBuffer * (*process) (GstBaseRTPDepayload *base, GstRTPBuffer *in);
// non-pure function used to convert from RTP timestamp to GST timestamp
// this function is used by the child class before gst_pad_pushing
GstBuffer* (*setgsttimestamp) (GstRTPBuffer *in);
void (*set_gst_timestamp) (GstBaseRTPDepayload *filter, guint32 timestamp, GstBuffer *buf);
/*< private >*/
gpointer _gst_reserved[GST_PADDING];