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rtpmux: Remove DTMF-specific code from RTP muxer and make it extendable
20070321123149-65035-b8a8f55ff78eed8cbb0042e827885edfc5438242.gz
This commit is contained in:
zeeshan.ali@nokia.com
Tim-Philipp Müller
parent
1a227ac7e5
commit
97ff54dce7
2 changed files with 95 additions and 135 deletions
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@ -38,47 +38,12 @@
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#include <gst/gst.h>
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#include <gst/rtp/gstrtpbuffer.h>
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#include <gstrtpmux.h>
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#include <string.h>
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GST_DEBUG_CATEGORY_STATIC (gst_rtp_mux_debug);
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#define GST_CAT_DEFAULT gst_rtp_mux_debug
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#define GST_TYPE_RTP_MUX (gst_rtp_mux_get_type())
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#define GST_RTP_MUX(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_MUX, GstRTPMux))
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#define GST_RTP_MUX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_MUX, GstRTPMux))
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#define GST_IS_RTP_MUX(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_MUX))
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#define GST_IS_RTP_MUX_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_MUX))
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typedef struct _GstRTPMux GstRTPMux;
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typedef struct _GstRTPMuxClass GstRTPMuxClass;
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/**
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* GstRTPMux:
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*
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* The opaque #GstRTPMux structure.
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*/
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struct _GstRTPMux
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{
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GstElement element;
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/* pad */
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GstPad *srcpad;
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/* sinkpads */
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gint numpads;
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GstPad *special_pad;
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guint16 seqnum_base;
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gint16 seqnum_offset;
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guint16 seqnum;
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};
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struct _GstRTPMuxClass
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{
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GstElementClass parent_class;
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};
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/* elementfactory information */
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static const GstElementDetails gst_rtp_mux_details =
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GST_ELEMENT_DETAILS ("RTP muxer",
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@ -114,8 +79,6 @@ static void gst_rtp_mux_init (GstRTPMux * rtp_mux);
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static void gst_rtp_mux_finalize (GObject * object);
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static gboolean gst_rtp_mux_handle_sink_event (GstPad * pad,
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GstEvent * event);
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static GstPad *gst_rtp_mux_request_new_pad (GstElement * element,
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GstPadTemplate * templ, const gchar * name);
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static GstFlowReturn gst_rtp_mux_chain (GstPad * pad,
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@ -196,6 +159,8 @@ gst_rtp_mux_class_init (GstRTPMuxClass * klass)
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gstelement_class->request_new_pad = gst_rtp_mux_request_new_pad;
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gstelement_class->change_state = gst_rtp_mux_change_state;
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klass->chain_func = gst_rtp_mux_chain;
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}
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static void
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@ -227,39 +192,43 @@ gst_rtp_mux_request_new_pad (GstElement * element,
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{
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GstRTPMux *rtp_mux;
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GstPad *newpad;
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GstElementClass *klass = GST_ELEMENT_GET_CLASS (element);
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GstRTPMuxClass *klass;
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GstPadTemplate * class_templ;
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g_return_val_if_fail (templ != NULL, NULL);
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g_return_val_if_fail (GST_IS_RTP_MUX (element), NULL);
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rtp_mux = GST_RTP_MUX (element);
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klass = GST_RTP_MUX_GET_CLASS (rtp_mux);
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if (templ->direction != GST_PAD_SINK) {
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GST_WARNING_OBJECT (rtp_mux, "request pad that is not a SINK pad");
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return NULL;
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}
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g_return_val_if_fail (GST_IS_RTP_MUX (element), NULL);
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class_templ =
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gst_element_class_get_pad_template (GST_ELEMENT_CLASS (klass), "sink_%d");
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if (templ == gst_element_class_get_pad_template (klass, "sink_%d")) {
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if (templ == class_templ) {
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gchar *name;
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GST_OBJECT_LOCK (rtp_mux);
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/* create new pad with the name */
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name = g_strdup_printf ("sink_%02d", rtp_mux->numpads);
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newpad = gst_pad_new_from_template (templ, name);
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g_free (name);
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rtp_mux->numpads++;
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GST_OBJECT_UNLOCK (rtp_mux);
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} else {
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GST_WARNING_OBJECT (rtp_mux, "this is not our template!\n");
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return NULL;
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}
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/* setup some pad functions */
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gst_pad_set_chain_function (newpad, gst_rtp_mux_chain);
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gst_pad_set_setcaps_function (newpad, gst_rtp_mux_setcaps);
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gst_pad_set_event_function (newpad, gst_rtp_mux_handle_sink_event);
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if (klass->chain_func)
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gst_pad_set_chain_function (newpad, klass->chain_func);
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if (klass->sink_event_func)
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gst_pad_set_event_function (newpad, klass->sink_event_func);
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/* dd the pad to the element */
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gst_element_add_pad (element, newpad);
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@ -271,33 +240,17 @@ static GstFlowReturn
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gst_rtp_mux_chain (GstPad * pad, GstBuffer * buffer)
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{
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GstRTPMux *rtp_mux;
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gboolean drop = FALSE;
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GstFlowReturn ret;
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rtp_mux = GST_RTP_MUX (gst_pad_get_parent (pad));
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GST_OBJECT_LOCK (rtp_mux);
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if (rtp_mux->special_pad != NULL &&
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rtp_mux->special_pad != pad) {
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drop = TRUE;
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}
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rtp_mux->seqnum++;
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GST_LOG_OBJECT (rtp_mux, "setting RTP seqnum %d", rtp_mux->seqnum);
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gst_rtp_buffer_set_seq (buffer, rtp_mux->seqnum);
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GST_DEBUG_OBJECT (rtp_mux, "Pushing packet size %d, seq=%d, ts=%u",
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GST_BUFFER_SIZE (buffer), rtp_mux->seqnum - 1);
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if (drop) {
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gst_buffer_unref (buffer);
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ret = GST_FLOW_OK;
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GST_OBJECT_UNLOCK (rtp_mux);
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}
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else {
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rtp_mux->seqnum++;
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GST_LOG_OBJECT (rtp_mux, "setting RTP seqnum %d", rtp_mux->seqnum);
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gst_rtp_buffer_set_seq (buffer, rtp_mux->seqnum);
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GST_DEBUG_OBJECT (rtp_mux, "Pushing packet size %d, seq=%d, ts=%u",
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GST_BUFFER_SIZE (buffer), rtp_mux->seqnum - 1);
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GST_OBJECT_UNLOCK (rtp_mux);
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ret = gst_pad_push (rtp_mux->srcpad, buffer);
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}
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ret = gst_pad_push (rtp_mux->srcpad, buffer);
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gst_object_unref (rtp_mux);
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return ret;
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@ -338,74 +291,6 @@ gst_rtp_mux_setcaps (GstPad *pad, GstCaps *caps)
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return TRUE;
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}
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static gboolean
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gst_rtp_mux_handle_sink_event (GstPad * pad, GstEvent * event)
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{
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GstRTPMux *rtp_mux;
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GstEventType type;
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rtp_mux = GST_RTP_MUX (gst_pad_get_parent (pad));
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type = event ? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN;
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switch (type) {
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case GST_EVENT_CUSTOM_DOWNSTREAM_OOB:
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{
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const GstStructure *structure;
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structure = gst_event_get_structure (event);
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/* FIXME: is this event generic enough to be given a generic name? */
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if (structure && gst_structure_has_name (structure, "stream-lock")) {
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gboolean lock;
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if (!gst_structure_get_boolean (structure, "lock", &lock))
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break;
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GST_OBJECT_LOCK (rtp_mux);
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if (lock) {
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if (rtp_mux->special_pad != NULL) {
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GST_WARNING_OBJECT (rtp_mux,
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"Stream lock already acquired by pad %s",
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GST_ELEMENT_NAME (rtp_mux->special_pad));
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}
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else
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rtp_mux->special_pad = gst_object_ref (pad);
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}
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else {
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if (rtp_mux->special_pad == NULL) {
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GST_WARNING_OBJECT (rtp_mux,
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"Stream lock not acquired, can't release it");
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}
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else if (pad != rtp_mux->special_pad) {
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GST_WARNING_OBJECT (rtp_mux,
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"pad %s attempted to release Stream lock"
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" which was acquired by pad %s", GST_ELEMENT_NAME (pad),
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GST_ELEMENT_NAME (rtp_mux->special_pad));
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}
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else {
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gst_object_unref (rtp_mux->special_pad);
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rtp_mux->special_pad = NULL;
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}
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}
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GST_OBJECT_UNLOCK (rtp_mux);
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}
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break;
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}
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default:
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break;
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}
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gst_object_unref (rtp_mux);
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return gst_pad_event_default (pad, event);
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}
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static void
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gst_rtp_mux_get_property (GObject * object,
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guint prop_id, GValue * value, GParamSpec * pspec)
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75
gst/rtpmanager/gstrtpmux.h
Normal file
75
gst/rtpmanager/gstrtpmux.h
Normal file
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@ -0,0 +1,75 @@
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/* RTP muxer element for GStreamer
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*
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* gstrtpmux.h:
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*
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* Copyright (C) <2007> Nokia Corporation.
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* Contact: Zeeshan Ali <zeeshan.ali@nokia.com>
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000,2005 Wim Taymans <wim@fluendo.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_RTP_MUX_H__
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#define __GST_RTP_MUX_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define GST_TYPE_RTP_MUX (gst_rtp_mux_get_type())
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#define GST_RTP_MUX(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_MUX, GstRTPMux))
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#define GST_RTP_MUX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_MUX, GstRTPMux))
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#define GST_RTP_MUX_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_RTP_MUX, GstRTPMuxClass))
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#define GST_IS_RTP_MUX(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_MUX))
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#define GST_IS_RTP_MUX_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_MUX))
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typedef struct _GstRTPMux GstRTPMux;
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typedef struct _GstRTPMuxClass GstRTPMuxClass;
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/**
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* GstRTPMux:
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*
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* The opaque #GstRTPMux structure.
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*/
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struct _GstRTPMux
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{
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GstElement element;
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/* pad */
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GstPad *srcpad;
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/* sinkpads */
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gint numpads;
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guint16 seqnum_base;
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gint16 seqnum_offset;
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guint16 seqnum;
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};
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struct _GstRTPMuxClass
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{
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GstElementClass parent_class;
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GstFlowReturn (* chain_func) (GstPad * pad, GstBuffer * buffer);
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gboolean (* sink_event_func) (GstPad * pad, GstEvent * event);
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};
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GType gst_rtp_mux_get_type (void);
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G_END_DECLS
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#endif /* __GST_RTP_MUX_H__ */
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