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-rw-r--r--gst/rtpmanager/gstrtpbin.c91
-rw-r--r--gst/rtpmanager/gstrtpjitterbuffer.c107
-rw-r--r--gst/rtpmanager/gstrtpjitterbuffer.h2
-rw-r--r--gst/rtpmanager/gstrtpptdemux.c53
4 files changed, 162 insertions, 91 deletions
diff --git a/gst/rtpmanager/gstrtpbin.c b/gst/rtpmanager/gstrtpbin.c
index 39e1fc85..b0882b67 100644
--- a/gst/rtpmanager/gstrtpbin.c
+++ b/gst/rtpmanager/gstrtpbin.c
@@ -125,6 +125,9 @@ typedef struct _GstRTPBinClient GstRTPBinClient;
static guint gst_rtp_bin_signals[LAST_SIGNAL] = { 0 };
+static GstCaps *pt_map_requested (GstElement * element, guint pt,
+ GstRTPBinStream * stream);
+
/* Manages the RTP stream for one SSRC.
*
* We pipe the stream (comming from the SSRC demuxer) into a jitterbuffer.
@@ -217,7 +220,7 @@ 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);
+ sess->ptmap = g_hash_table_new (NULL, NULL);
rtpbin->sessions = g_slist_prepend (rtpbin->sessions, sess);
gst_bin_add (GST_BIN_CAST (rtpbin), elem);
@@ -263,24 +266,40 @@ get_pt_map (GstRTPBinSession * session, guint pt)
{
GstCaps *caps = NULL;
GstRTPBin *bin;
+ GValue ret = { 0 };
+ GValue args[3] = { {0}, {0}, {0} };
- GST_DEBUG ("finding pt %d in cache", pt);
+ GST_DEBUG ("searching pt %d in cache", pt);
/* first look in the cache */
caps = g_hash_table_lookup (session->ptmap, GINT_TO_POINTER (pt));
- if (caps)
+ 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);
+ g_value_init (&args[0], GST_TYPE_ELEMENT);
+ g_value_set_object (&args[0], bin);
+ g_value_init (&args[1], G_TYPE_UINT);
+ g_value_set_uint (&args[1], session->id);
+ g_value_init (&args[2], G_TYPE_UINT);
+ g_value_set_uint (&args[2], pt);
+
+ g_value_init (&ret, GST_TYPE_CAPS);
+ g_value_set_boxed (&ret, NULL);
+
+ g_signal_emitv (args, gst_rtp_bin_signals[SIGNAL_REQUEST_PT_MAP], 0, &ret);
+
+ caps = (GstCaps *) g_value_get_boxed (&ret);
if (!caps)
goto no_caps;
+ GST_DEBUG ("caching pt %d as %" GST_PTR_FORMAT, pt, caps);
+
/* store in cache */
g_hash_table_insert (session->ptmap, GINT_TO_POINTER (pt), caps);
@@ -295,42 +314,6 @@ no_caps:
}
}
-/* 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)
{
@@ -352,8 +335,8 @@ create_stream (GstRTPBinSession * session, guint32 ssrc)
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);
+ g_signal_connect (buffer, "request-pt-map",
+ (GCallback) pt_map_requested, stream);
gst_bin_add (GST_BIN_CAST (session->bin), buffer);
gst_element_set_state (buffer, GST_STATE_PLAYING);
@@ -457,7 +440,7 @@ gst_rtp_bin_class_init (GstRTPBinClass * klass)
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_UINT, GST_TYPE_CAPS, 1,
+ NULL, NULL, gst_rtp_bin_marshal_BOXED__UINT_UINT, GST_TYPE_CAPS, 2,
G_TYPE_UINT, G_TYPE_UINT);
gstelement_class->provide_clock =
@@ -593,18 +576,26 @@ pt_map_requested (GstElement * element, guint pt, GstRTPBinStream * stream)
{
GstRTPBin *rtpbin;
GstRTPBinSession *session;
- gint id;
+ GstCaps *caps;
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);
+ session->id);
- return NULL;
+ caps = get_pt_map (session, pt);
+ if (!caps)
+ goto no_caps;
+
+ return caps;
+
+ /* ERRORS */
+no_caps:
+ {
+ GST_DEBUG_OBJECT (rtpbin, "could not get caps");
+ return NULL;
+ }
}
/* a new pad (SSRC) was created in @session */
diff --git a/gst/rtpmanager/gstrtpjitterbuffer.c b/gst/rtpmanager/gstrtpjitterbuffer.c
index 39b476d9..1973e9b4 100644
--- a/gst/rtpmanager/gstrtpjitterbuffer.c
+++ b/gst/rtpmanager/gstrtpjitterbuffer.c
@@ -83,7 +83,7 @@ GST_ELEMENT_DETAILS ("RTP packet jitter-buffer",
enum
{
/* FILL ME */
- SIGNAL_REQUEST_CLOCK_RATE,
+ SIGNAL_REQUEST_PT_MAP,
LAST_SIGNAL
};
@@ -227,17 +227,17 @@ gst_rtp_jitter_buffer_class_init (GstRTPJitterBufferClass * klass)
DEFAULT_DROP_ON_LATENCY, G_PARAM_READWRITE));
/**
- * GstRTPJitterBuffer::request-clock-rate:
+ * GstRTPJitterBuffer::request-pt-map:
* @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),
+ gst_rtp_jitter_buffer_signals[SIGNAL_REQUEST_PT_MAP] =
+ g_signal_new ("request-pt-map", 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);
+ request_pt_map), NULL, NULL, gst_rtp_bin_marshal_BOXED__UINT,
+ GST_TYPE_CAPS, 1, G_TYPE_UINT);
gstelement_class->change_state = gst_rtp_jitter_buffer_change_state;
@@ -341,14 +341,13 @@ gst_rtp_jitter_buffer_getcaps (GstPad * pad)
}
static gboolean
-gst_jitter_buffer_sink_setcaps (GstPad * pad, GstCaps * caps)
+gst_jitter_buffer_sink_parse_caps (GstRTPJitterBuffer * jitterbuffer,
+ GstCaps * caps)
{
- GstRTPJitterBuffer *jitterbuffer;
GstRTPJitterBufferPrivate *priv;
GstStructure *caps_struct;
const GValue *value;
- jitterbuffer = GST_RTP_JITTER_BUFFER (gst_pad_get_parent (pad));
priv = jitterbuffer->priv;
/* first parse the caps */
@@ -387,28 +386,42 @@ gst_jitter_buffer_sink_setcaps (GstPad * pad, GstCaps * caps)
async_jitter_queue_set_max_queue_length (priv->queue,
priv->latency_ms * priv->clock_rate / 1000);
- /* set same caps on srcpad */
- gst_pad_set_caps (priv->srcpad, caps);
-
- gst_object_unref (jitterbuffer);
-
return TRUE;
/* ERRORS */
error:
{
GST_DEBUG_OBJECT (jitterbuffer, "No clock-rate in caps!");
- gst_object_unref (jitterbuffer);
return FALSE;
}
wrong_rate:
{
GST_DEBUG_OBJECT (jitterbuffer, "Invalid clock-rate %d", priv->clock_rate);
- gst_object_unref (jitterbuffer);
return FALSE;
}
}
+static gboolean
+gst_jitter_buffer_sink_setcaps (GstPad * pad, GstCaps * caps)
+{
+ GstRTPJitterBuffer *jitterbuffer;
+ GstRTPJitterBufferPrivate *priv;
+ gboolean res;
+
+ jitterbuffer = GST_RTP_JITTER_BUFFER (gst_pad_get_parent (pad));
+ priv = jitterbuffer->priv;
+
+ res = gst_jitter_buffer_sink_parse_caps (jitterbuffer, caps);
+
+ /* set same caps on srcpad on success */
+ if (res)
+ gst_pad_set_caps (priv->srcpad, caps);
+
+ gst_object_unref (jitterbuffer);
+
+ return res;
+}
+
static void
free_func (gpointer data, GstRTPJitterBuffer * user_data)
{
@@ -670,6 +683,42 @@ newseg_wrong_format:
}
}
+static gboolean
+gst_rtp_jitter_buffer_get_clock_rate (GstRTPJitterBuffer * jitterbuffer,
+ guint8 pt)
+{
+ GValue ret = { 0 };
+ GValue args[2] = { {0}, {0} };
+ GstCaps *caps;
+ gboolean res;
+
+ g_value_init (&args[0], GST_TYPE_ELEMENT);
+ g_value_set_object (&args[0], jitterbuffer);
+ g_value_init (&args[1], G_TYPE_UINT);
+ g_value_set_uint (&args[1], pt);
+
+ g_value_init (&ret, GST_TYPE_CAPS);
+ g_value_set_boxed (&ret, NULL);
+
+ g_signal_emitv (args, gst_rtp_jitter_buffer_signals[SIGNAL_REQUEST_PT_MAP], 0,
+ &ret);
+
+ caps = (GstCaps *) g_value_get_boxed (&ret);
+ if (!caps)
+ goto no_caps;
+
+ res = gst_jitter_buffer_sink_parse_caps (jitterbuffer, caps);
+
+ return res;
+
+ /* ERRORS */
+no_caps:
+ {
+ GST_DEBUG_OBJECT (jitterbuffer, "could not get caps");
+ return FALSE;
+ }
+}
+
static GstFlowReturn
gst_rtp_jitter_buffer_chain (GstPad * pad, GstBuffer * buffer)
{
@@ -678,14 +727,23 @@ gst_rtp_jitter_buffer_chain (GstPad * pad, GstBuffer * buffer)
guint16 seqnum;
GstFlowReturn ret;
+ jitterbuffer = GST_RTP_JITTER_BUFFER (gst_pad_get_parent (pad));
- g_return_val_if_fail (gst_rtp_buffer_validate (buffer), GST_FLOW_ERROR);
+ if (!gst_rtp_buffer_validate (buffer))
+ goto invalid_buffer;
- jitterbuffer = GST_RTP_JITTER_BUFFER (gst_pad_get_parent (pad));
priv = jitterbuffer->priv;
- if (priv->clock_rate == -1)
- goto not_negotiated;
+ if (priv->clock_rate == -1) {
+ guint8 pt;
+
+ /* no clock rate given on the caps, try to get one with the signal */
+ pt = gst_rtp_buffer_get_payload_type (buffer);
+
+ gst_rtp_jitter_buffer_get_clock_rate (jitterbuffer, pt);
+ if (priv->clock_rate == -1)
+ goto not_negotiated;
+ }
seqnum = gst_rtp_buffer_get_seq (buffer);
GST_DEBUG_OBJECT (jitterbuffer, "Received packet #%d", seqnum);
@@ -743,6 +801,15 @@ finished:
return ret;
/* ERRORS */
+invalid_buffer:
+ {
+ /* this is fatal and should be filtered earlier */
+ GST_ELEMENT_ERROR (jitterbuffer, STREAM, DECODE, (NULL),
+ ("Received invalid RTP payload"));
+ gst_buffer_unref (buffer);
+ gst_object_unref (jitterbuffer);
+ return GST_FLOW_ERROR;
+ }
not_negotiated:
{
GST_DEBUG_OBJECT (jitterbuffer, "No clock-rate in caps!");
diff --git a/gst/rtpmanager/gstrtpjitterbuffer.h b/gst/rtpmanager/gstrtpjitterbuffer.h
index 215d8b70..e101039a 100644
--- a/gst/rtpmanager/gstrtpjitterbuffer.h
+++ b/gst/rtpmanager/gstrtpjitterbuffer.h
@@ -63,7 +63,7 @@ struct _GstRTPJitterBufferClass
{
GstElementClass parent_class;
- guint (*request_clock_rate) (GstRTPJitterBuffer *buffer, guint pt);
+ GstCaps* (*request_pt_map) (GstRTPJitterBuffer *buffer, guint pt);
/*< private > */
gpointer _gst_reserved[GST_PADDING];
diff --git a/gst/rtpmanager/gstrtpptdemux.c b/gst/rtpmanager/gstrtpptdemux.c
index 7ac6e90c..247df148 100644
--- a/gst/rtpmanager/gstrtpptdemux.c
+++ b/gst/rtpmanager/gstrtpptdemux.c
@@ -97,7 +97,6 @@ static void gst_rtp_pt_demux_release (GstElement * element);
static gboolean gst_rtp_pt_demux_setup (GstElement * element);
static GstFlowReturn gst_rtp_pt_demux_chain (GstPad * pad, GstBuffer * buf);
-static GstCaps *gst_rtp_pt_demux_getcaps (GstPad * pad);
static GstStateChangeReturn gst_rtp_pt_demux_change_state (GstElement * element,
GstStateChange transition);
@@ -234,6 +233,11 @@ gst_rtp_pt_demux_chain (GstPad * pad, GstBuffer * buf)
gchar *padname;
GstCaps *caps;
GstRTPPtDemuxPad *rtpdemuxpad;
+ GValue ret = { 0 };
+ GValue args[2] = { {0}
+ , {0}
+ };
+
klass = GST_ELEMENT_GET_CLASS (rtpdemux);
templ = gst_element_class_get_pad_template (klass, "src_%d");
@@ -241,22 +245,35 @@ gst_rtp_pt_demux_chain (GstPad * pad, GstBuffer * buf)
srcpad = gst_pad_new_from_template (templ, padname);
g_free (padname);
- caps = gst_buffer_get_caps (buf);
+ /* figure out the caps */
+ g_value_init (&args[0], GST_TYPE_ELEMENT);
+ g_value_set_object (&args[0], rtpdemux);
+ g_value_init (&args[1], G_TYPE_UINT);
+ g_value_set_uint (&args[1], pt);
+
+ g_value_init (&ret, GST_TYPE_CAPS);
+ g_value_set_boxed (&ret, NULL);
+
+ g_signal_emitv (args, gst_rtp_pt_demux_signals[SIGNAL_REQUEST_PT_MAP], 0,
+ &ret);
+
+ caps = g_value_get_boxed (&ret);
+ if (!caps)
+ goto no_caps;
+
caps = gst_caps_make_writable (caps);
gst_caps_set_simple (caps, "payload", G_TYPE_INT, pt, NULL);
gst_pad_set_caps (srcpad, caps);
- /* XXX: set _link () function */
- gst_pad_set_getcaps_function (srcpad, gst_rtp_pt_demux_getcaps);
- gst_pad_set_active (srcpad, TRUE);
- gst_element_add_pad (element, srcpad);
-
GST_DEBUG ("Adding pt=%d to the list.", pt);
rtpdemuxpad = g_new0 (GstRTPPtDemuxPad, 1);
rtpdemuxpad->pt = pt;
rtpdemuxpad->pad = srcpad;
rtpdemux->srcpads = g_slist_append (rtpdemux->srcpads, rtpdemuxpad);
+ gst_pad_set_active (srcpad, TRUE);
+ gst_element_add_pad (element, srcpad);
+
GST_DEBUG ("emitting new-payload_type for pt %d", pt);
g_signal_emit (G_OBJECT (rtpdemux),
gst_rtp_pt_demux_signals[SIGNAL_NEW_PAYLOAD_TYPE], 0, pt, srcpad);
@@ -272,6 +289,8 @@ gst_rtp_pt_demux_chain (GstPad * pad, GstBuffer * buf)
gst_rtp_pt_demux_signals[SIGNAL_PAYLOAD_TYPE_CHANGE], 0, emit_pt);
}
+ gst_buffer_set_caps (buf, GST_PAD_CAPS (srcpad));
+
/* push to srcpad */
if (srcpad)
ret = gst_pad_push (srcpad, GST_BUFFER (buf));
@@ -287,19 +306,13 @@ invalid_buffer:
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
-}
-
-static GstCaps *
-gst_rtp_pt_demux_getcaps (GstPad * pad)
-{
- GstCaps *caps;
-
- GST_OBJECT_LOCK (pad);
- if ((caps = GST_PAD_CAPS (pad)))
- caps = gst_caps_ref (caps);
- GST_OBJECT_UNLOCK (pad);
-
- return caps;
+no_caps:
+ {
+ GST_ELEMENT_ERROR (rtpdemux, STREAM, DECODE, (NULL),
+ ("Could not get caps for payload"));
+ gst_buffer_unref (buf);
+ return GST_FLOW_ERROR;
+ }
}
static GstPad *
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-26 05:46:44 +0000