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gst/rtpmanager/gstrtpbin-marshal.list: Some more custom marshallers.

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Original commit message from CVS:
* gst/rtpmanager/gstrtpbin-marshal.list:
Some more custom marshallers.
* gst/rtpmanager/gstrtpbin.c: (create_session), (get_pt_map),
(clock_rate_request), (create_stream), (gst_rtp_bin_class_init),
(pt_map_requested), (new_ssrc_pad_found), (create_recv_rtp):
* gst/rtpmanager/gstrtpbin.h:
Prepare for caching pt maps.
Connect to signals to collect pt maps.
* gst/rtpmanager/gstrtpjitterbuffer.c:
(gst_rtp_jitter_buffer_class_init),
(gst_jitter_buffer_sink_setcaps), (gst_rtp_jitter_buffer_loop):
* gst/rtpmanager/gstrtpjitterbuffer.h:
Add request_clock_rate signal.
Use scale insteat of scale_int because the later does not deal with
negative numbers.
* gst/rtpmanager/gstrtpptdemux.c: (gst_rtp_pt_demux_class_init),
(gst_rtp_pt_demux_chain):
* gst/rtpmanager/gstrtpptdemux.h:
Implement request-pt-map signal.
This commit is contained in:
Wim Taymans 2007-04-11 13:49:54 +00:00 committed by Tim-Philipp Müller
parent 8c67b5d7dd
commit 03bf43d50e
7 changed files with 191 additions and 27 deletions
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2
gst/rtpmanager/gstrtpbin-marshal.list
View file

@ -1,2 +1,4 @@
UINT:UINT
BOXED:UINT
BOXED:UINT,UINT
VOID:UINT,OBJECT

128
gst/rtpmanager/gstrtpbin.c
View file

@ -123,6 +123,8 @@ typedef struct _GstRTPBinSession GstRTPBinSession;
typedef struct _GstRTPBinStream GstRTPBinStream;
typedef struct _GstRTPBinClient GstRTPBinClient;
static guint gst_rtp_bin_signals[LAST_SIGNAL] = { 0 };
/* Manages the RTP stream for one SSRC.
*
* We pipe the stream (comming from the SSRC demuxer) into a jitterbuffer.
@ -143,6 +145,7 @@ struct _GstRTPBinStream
/* the PT demuxer of the SSRC */
GstElement *demux;
gulong demux_newpad_sig;
gulong demux_ptreq_sig;
};
/* Manages the receiving end of the packets.
@ -168,6 +171,9 @@ struct _GstRTPBinSession
/* list of GstRTPBinStream */
GSList *streams;
/* mapping of payload type to caps */
GHashTable *ptmap;
/* the pads of the session */
GstPad *recv_rtp_sink;
GstPad *recv_rtp_src;
@ -211,6 +217,7 @@ create_session (GstRTPBin * rtpbin, gint id)
sess->bin = rtpbin;
sess->session = elem;
sess->demux = demux;
sess->ptmap = g_hash_table_new (g_int_hash, g_int_equal);
rtpbin->sessions = g_slist_prepend (rtpbin->sessions, sess);
gst_bin_add (GST_BIN_CAST (rtpbin), elem);
@ -250,6 +257,80 @@ find_stream_by_ssrc (GstRTPBinSession * session, guint32 ssrc)
}
#endif
/* get the payload type caps for the specific payload @pt in @session */
static GstCaps *
get_pt_map (GstRTPBinSession * session, guint pt)
{
GstCaps *caps = NULL;
GstRTPBin *bin;
GST_DEBUG ("finding pt %d in cache", pt);
/* first look in the cache */
caps = g_hash_table_lookup (session->ptmap, GINT_TO_POINTER (pt));
if (caps)
goto done;
bin = session->bin;
GST_DEBUG ("emiting signal for pt %d in session %d", pt, session->id);
/* not in cache, send signal to request caps */
g_signal_emit (G_OBJECT (bin), gst_rtp_bin_signals[SIGNAL_REQUEST_PT_MAP], 0,
session->id, pt, &caps);
if (!caps)
goto no_caps;
/* store in cache */
g_hash_table_insert (session->ptmap, GINT_TO_POINTER (pt), caps);
done:
return caps;
/* ERRORS */
no_caps:
{
GST_DEBUG ("no pt map could be obtained");
return NULL;
}
}
/* callback from the jitterbuffer when it needs to know the clockrate of a
* specific payload type. */
static guint32
clock_rate_request (GstElement * buffer, guint pt, GstRTPBinStream * stream)
{
GstCaps *caps;
GstRTPBinSession *session;
GstStructure *s;
gint32 clock_rate;
session = stream->session;
caps = get_pt_map (session, pt);
if (!caps)
goto no_map;
s = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (s, "clock-rate", &clock_rate))
goto no_clock_rate;
return clock_rate;
/* ERRORS */
no_map:
{
GST_DEBUG ("no pt map found");
return 0;
}
no_clock_rate:
{
GST_DEBUG ("no clock-rate in caps found");
return 0;
}
}
static GstRTPBinStream *
create_stream (GstRTPBinSession * session, guint32 ssrc)
{
@ -270,6 +351,10 @@ create_stream (GstRTPBinSession * session, guint32 ssrc)
stream->demux = demux;
session->streams = g_slist_prepend (session->streams, stream);
/* provide clock_rate to the jitterbuffer when needed */
g_signal_connect (buffer, "request-clock-rate",
(GCallback) clock_rate_request, stream);
gst_bin_add (GST_BIN_CAST (session->bin), buffer);
gst_element_set_state (buffer, GST_STATE_PLAYING);
gst_bin_add (GST_BIN_CAST (session->bin), demux);
@ -320,8 +405,6 @@ static GstPad *gst_rtp_bin_request_new_pad (GstElement * element,
GstPadTemplate * templ, const gchar * name);
static void gst_rtp_bin_release_pad (GstElement * element, GstPad * pad);
static guint gst_rtp_bin_signals[LAST_SIGNAL] = { 0 };
GST_BOILERPLATE (GstRTPBin, gst_rtp_bin, GstBin, GST_TYPE_BIN);
static void
@ -363,11 +446,19 @@ gst_rtp_bin_class_init (GstRTPBinClass * klass)
gobject_class->set_property = gst_rtp_bin_set_property;
gobject_class->get_property = gst_rtp_bin_get_property;
/**
* GstRTPBin::request-pt-map:
* @rtpbin: the object which received the signal
* @session: the session
* @pt: the pt
*
* Request the payload type as #GstCaps for @pt in @session.
*/
gst_rtp_bin_signals[SIGNAL_REQUEST_PT_MAP] =
g_signal_new ("request-pt-map", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstRTPBinClass, request_pt_map),
NULL, NULL, gst_rtp_bin_marshal_BOXED__UINT, GST_TYPE_CAPS, 1,
G_TYPE_UINT);
NULL, NULL, gst_rtp_bin_marshal_BOXED__UINT_UINT, GST_TYPE_CAPS, 1,
G_TYPE_UINT, G_TYPE_UINT);
gstelement_class->provide_clock =
GST_DEBUG_FUNCPTR (gst_rtp_bin_provide_clock);
@ -497,6 +588,25 @@ new_payload_found (GstElement * element, guint pt, GstPad * pad,
gst_element_add_pad (GST_ELEMENT_CAST (rtpbin), gpad);
}
static GstCaps *
pt_map_requested (GstElement * element, guint pt, GstRTPBinStream * stream)
{
GstRTPBin *rtpbin;
GstRTPBinSession *session;
gint id;
rtpbin = stream->bin;
session = stream->session;
/* find session id */
id = session->id;
GST_DEBUG_OBJECT (rtpbin, "payload map requested for pt %d in session %d", pt,
id);
return NULL;
}
/* a new pad (SSRC) was created in @session */
static void
new_ssrc_pad_found (GstElement * element, guint ssrc, GstPad * pad,
@ -518,9 +628,15 @@ new_ssrc_pad_found (GstElement * element, guint ssrc, GstPad * pad,
gst_pad_link (pad, sinkpad);
gst_object_unref (sinkpad);
/* connect to the new-pad signal of the payload demuxer */
/* connect to the new-pad signal of the payload demuxer, this will expose the
* new pad by ghosting it. */
stream->demux_newpad_sig = g_signal_connect (stream->demux,
"new-payload-type", (GCallback) new_payload_found, stream);
/* connect to the request-pt-map signal. This signal will be emited by the
* demuxer so that it can apply a proper caps on the buffers for the
* depayloaders. */
stream->demux_ptreq_sig = g_signal_connect (stream->demux,
"request-pt-map", (GCallback) pt_map_requested, stream);
return;
@ -582,7 +698,7 @@ create_recv_rtp (GstRTPBin * rtpbin, GstPadTemplate * templ, const gchar * name)
if (lres != GST_PAD_LINK_OK)
goto link_failed;
/* connect to the new-ssrc-pad signal of the demuxer */
/* connect to the new-ssrc-pad signal of the SSRC demuxer */
session->demux_newpad_sig = g_signal_connect (session->demux,
"new-ssrc-pad", (GCallback) new_ssrc_pad_found, session);

2
gst/rtpmanager/gstrtpbin.h
View file

@ -52,7 +52,7 @@ struct _GstRTPBinClass {
GstBinClass parent_class;
/* get the caps for pt */
GstCaps (*request_pt_map) (GstRTPBin *rtpbin, guint pt);
GstCaps* (*request_pt_map) (GstRTPBin *rtpbin, guint session, guint pt);
};
GType gst_rtp_bin_get_type (void);

25
gst/rtpmanager/gstrtpjitterbuffer.c
View file

@ -58,8 +58,10 @@
#include <string.h>
#include <gst/rtp/gstrtpbuffer.h>
#include "gstrtpjitterbuffer.h"
#include "gstrtpbin-marshal.h"
#include "gstrtpjitterbuffer.h"
#include "async_jitter_queue.h"
GST_DEBUG_CATEGORY (rtpjitterbuffer_debug);
@ -81,6 +83,7 @@ GST_ELEMENT_DETAILS ("RTP packet jitter-buffer",
enum
{
/* FILL ME */
SIGNAL_REQUEST_CLOCK_RATE,
LAST_SIGNAL
};
@ -152,6 +155,8 @@ GST_STATIC_PAD_TEMPLATE ("src",
*/ )
);
static guint gst_rtp_jitter_buffer_signals[LAST_SIGNAL] = { 0 };
GST_BOILERPLATE (GstRTPJitterBuffer, gst_rtp_jitter_buffer, GstElement,
GST_TYPE_ELEMENT);
@ -221,6 +226,19 @@ gst_rtp_jitter_buffer_class_init (GstRTPJitterBufferClass * klass)
"Tells the jitterbuffer to never exceed the given latency in size",
DEFAULT_DROP_ON_LATENCY, G_PARAM_READWRITE));
/**
* GstRTPJitterBuffer::request-clock-rate:
* @buffer: the object which received the signal
* @pt: the pt
*
* Request the payload type as #GstCaps for @pt.
*/
gst_rtp_jitter_buffer_signals[SIGNAL_REQUEST_CLOCK_RATE] =
g_signal_new ("request-clock-rate", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstRTPJitterBufferClass,
request_clock_rate), NULL, NULL, gst_rtp_bin_marshal_UINT__UINT,
G_TYPE_UINT, 1, G_TYPE_UINT);
gstelement_class->change_state = gst_rtp_jitter_buffer_change_state;
GST_DEBUG_CATEGORY_INIT
@ -366,8 +384,6 @@ gst_jitter_buffer_sink_setcaps (GstPad * pad, GstCaps * caps)
} else
priv->next_seqnum = -1;
async_jitter_queue_set_max_queue_length (priv->queue,
priv->latency_ms * priv->clock_rate / 1000);
@ -859,8 +875,7 @@ again:
rtp_time -= priv->clock_base;
/* bring timestamp to gst time */
timestamp =
gst_util_uint64_scale_int (GST_SECOND, rtp_time, priv->clock_rate);
timestamp = gst_util_uint64_scale (GST_SECOND, rtp_time, priv->clock_rate);
GST_DEBUG_OBJECT (jitterbuffer, "timestamp %" GST_TIME_FORMAT,
GST_TIME_ARGS (timestamp));

2
gst/rtpmanager/gstrtpjitterbuffer.h
View file

@ -63,6 +63,8 @@ struct _GstRTPJitterBufferClass
{
GstElementClass parent_class;
guint (*request_clock_rate) (GstRTPJitterBuffer *buffer, guint pt);
/*< private > */
gpointer _gst_reserved[GST_PADDING];
};

52
gst/rtpmanager/gstrtpptdemux.c
View file

@ -83,6 +83,7 @@ struct _GstRTPPtDemuxPad
/* signals */
enum
{
SIGNAL_REQUEST_PT_MAP,
SIGNAL_NEW_PAYLOAD_TYPE,
SIGNAL_PAYLOAD_TYPE_CHANGE,
LAST_SIGNAL
@ -134,20 +135,45 @@ gst_rtp_pt_demux_class_init (GstRTPPtDemuxClass * klass)
gobject_klass = (GObjectClass *) klass;
gstelement_klass = (GstElementClass *) klass;
/**
* GstRTPPtDemux::request-pt-map:
* @demux: the object which received the signal
* @pt: the payload type
*
* Request the payload type as #GstCaps for @pt.
*/
gst_rtp_pt_demux_signals[SIGNAL_REQUEST_PT_MAP] =
g_signal_new ("request-pt-map", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstRTPPtDemuxClass, request_pt_map),
NULL, NULL, gst_rtp_bin_marshal_BOXED__UINT, GST_TYPE_CAPS, 1,
G_TYPE_UINT);
/**
* GstRTPPtDemux::new-payload-type
* @demux: the object which received the signal
* @pt: the payload type
* @pad: the pad with the new payload
*
* Emited when a new payload type pad has been created in @demux.
*/
gst_rtp_pt_demux_signals[SIGNAL_NEW_PAYLOAD_TYPE] =
g_signal_new ("new-payload-type",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstRTPPtDemuxClass, new_payload_type),
NULL, NULL,
gst_rtp_bin_marshal_VOID__UINT_OBJECT,
G_TYPE_NONE, 2, G_TYPE_INT, GST_TYPE_PAD);
g_signal_new ("new-payload-type", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstRTPPtDemuxClass, new_payload_type),
NULL, NULL, gst_rtp_bin_marshal_VOID__UINT_OBJECT, G_TYPE_NONE, 2,
G_TYPE_UINT, GST_TYPE_PAD);
/**
* GstRTPPtDemux::payload-type-change
* @demux: the object which received the signal
* @pt: the new payload type
*
* Emited when the payload type changed.
*/
gst_rtp_pt_demux_signals[SIGNAL_PAYLOAD_TYPE_CHANGE] =
g_signal_new ("payload-type-change",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstRTPPtDemuxClass, payload_type_change),
NULL, NULL, g_cclosure_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);
g_signal_new ("payload-type-change", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstRTPPtDemuxClass,
payload_type_change), NULL, NULL, g_cclosure_marshal_VOID__UINT,
G_TYPE_NONE, 1, G_TYPE_UINT);
gobject_klass->finalize = GST_DEBUG_FUNCPTR (gst_rtp_pt_demux_finalize);
@ -215,7 +241,7 @@ gst_rtp_pt_demux_chain (GstPad * pad, GstBuffer * buf)
srcpad = gst_pad_new_from_template (templ, padname);
g_free (padname);
caps = gst_pad_get_caps (srcpad);
caps = gst_buffer_get_caps (buf);
caps = gst_caps_make_writable (caps);
gst_caps_set_simple (caps, "payload", G_TYPE_INT, pt, NULL);
gst_pad_set_caps (srcpad, caps);

7
gst/rtpmanager/gstrtpptdemux.h
View file

@ -45,11 +45,14 @@ struct _GstRTPPtDemuxClass
{
GstElementClass parent_class;
/* get the caps for pt */
GstCaps* (*request_pt_map) (GstRTPPtDemux *demux, guint pt);
/* signal emmited when a new PT is found from the incoming stream */
void (*new_payload_type) (GstElement * element, gint pt, GstPad * pad);
void (*new_payload_type) (GstRTPPtDemux *demux, guint pt, GstPad * pad);
/* signal emitted when the payload type changes */
void (*payload_type_change) (GstElement * element, gint pt);
void (*payload_type_change) (GstRTPPtDemux *demux, guint pt);
};
GType gst_rtp_pt_demux_get_type (void);