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author | zeeshan.ali@nokia.com <zeeshan.ali@nokia.com> | 2007-02-15 10:10:30 +0000 |
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committer | Edward Hervey <bilboed@bilboed.com> | 2009-02-21 17:47:55 +0100 |
commit | b392c5041d812ba36687b15918d1a558385415d7 (patch) | |
tree | c050ea8aed49b241bc3cc626863905314e658c75 /gst/rtpdtmf | |
parent | 1ae11d7b6fd11b0d042ad350043674d41e19ee3e (diff) | |
download | gst-plugins-bad-b392c5041d812ba36687b15918d1a558385415d7.tar.gz gst-plugins-bad-b392c5041d812ba36687b15918d1a558385415d7.tar.bz2 gst-plugins-bad-b392c5041d812ba36687b15918d1a558385415d7.zip |
[MOVED FROM GST-P-FARSIGHT] Put correct seq and timestamps on the packets
20070215101030-65035-7146a3c4a8d0feab513d13a207b2cdc5de311f03.gz
Diffstat (limited to 'gst/rtpdtmf')
-rw-r--r-- | gst/rtpdtmf/gstrtpdtmfsrc.c | 151 | ||||
-rw-r--r-- | gst/rtpdtmf/gstrtpdtmfsrc.h | 11 |
2 files changed, 138 insertions, 24 deletions
diff --git a/gst/rtpdtmf/gstrtpdtmfsrc.c b/gst/rtpdtmf/gstrtpdtmfsrc.c index fa3bf32d..d0d40a41 100644 --- a/gst/rtpdtmf/gstrtpdtmfsrc.c +++ b/gst/rtpdtmf/gstrtpdtmfsrc.c @@ -30,17 +30,19 @@ #include "gstrtpdtmfsrc.h" -#define GST_RTP_DTMF_TYPE_EVENT 1 -#define DEFAULT_PACKET_INTERVAL ((guint16) 50) /* ms */ -#define DEFAULT_SSRC -1 -#define DEFAULT_PT 96 -#define DEFAULT_CLOCK_RATE 8000 -#define MIN_EVENT 0 -#define MAX_EVENT 16 -#define MIN_EVENT_STRING "0" -#define MAX_EVENT_STRING "16" -#define MIN_VOLUME 0 -#define MAX_VOLUME 36 +#define GST_RTP_DTMF_TYPE_EVENT 1 +#define DEFAULT_PACKET_INTERVAL ((guint16) 50) /* ms */ +#define DEFAULT_SSRC -1 +#define DEFAULT_PT 96 +#define DEFAULT_TIMESTAMP_OFFSET -1 +#define DEFAULT_SEQNUM_OFFSET -1 +#define DEFAULT_CLOCK_RATE 8000 +#define MIN_EVENT 0 +#define MAX_EVENT 16 +#define MIN_EVENT_STRING "0" +#define MAX_EVENT_STRING "16" +#define MIN_VOLUME 0 +#define MAX_VOLUME 36 /* elementfactory information */ static const GstElementDetails gst_rtp_dtmf_src_details = @@ -63,8 +65,12 @@ enum { PROP_0, PROP_SSRC, + PROP_TIMESTAMP_OFFSET, + PROP_SEQNUM_OFFSET, PROP_PT, PROP_CLOCK_RATE, + PROP_TIMESTAMP, + PROP_SEQNUM }; static GstStaticPadTemplate gst_rtp_dtmf_src_template = @@ -76,7 +82,7 @@ GST_STATIC_PAD_TEMPLATE ("src", "payload = (int) [ 96, 127 ], " "clock-rate = (int) [ 0, MAX ], " "ssrc = (int) [ 0, MAX ], " - "event = (int) [ " MIN_EVENT_STRING ", " MAX_EVENT_STRING " ], " + "events = (int) [ " MIN_EVENT_STRING ", " MAX_EVENT_STRING " ], " "encoding-name = (string) \"telephone-event\"") ); @@ -155,6 +161,23 @@ gst_rtp_dtmf_src_class_init (GstRTPDTMFSrcClass * klass) gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_rtp_dtmf_src_get_property); + g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_TIMESTAMP, + g_param_spec_uint ("timestamp", "Timestamp", + "The RTP timestamp of the last processed packet", + 0, G_MAXUINT, 0, G_PARAM_READABLE)); + g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SEQNUM, + g_param_spec_uint ("seqnum", "Sequence number", + "The RTP sequence number of the last processed packet", + 0, G_MAXUINT, 0, G_PARAM_READABLE)); + g_object_class_install_property (G_OBJECT_CLASS (klass), + PROP_TIMESTAMP_OFFSET, g_param_spec_int ("timestamp-offset", + "Timestamp Offset", + "Offset to add to all outgoing timestamps (-1 = random)", -1, + G_MAXINT, DEFAULT_TIMESTAMP_OFFSET, G_PARAM_READWRITE)); + g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SEQNUM_OFFSET, + g_param_spec_int ("seqnum-offset", "Sequence number Offset", + "Offset to add to all outgoing seqnum (-1 = random)", -1, G_MAXINT, + DEFAULT_SEQNUM_OFFSET, G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_CLOCK_RATE, g_param_spec_uint ("clock-rate", "clockrate", "The clock-rate at which to generate the dtmf packets", @@ -183,6 +206,8 @@ gst_rtp_dtmf_src_init (GstRTPDTMFSrc * dtmfsrc, gpointer g_class) gst_pad_set_event_function (dtmfsrc->srcpad, gst_rtp_dtmf_src_handle_event); dtmfsrc->ssrc = DEFAULT_SSRC; + dtmfsrc->seqnum_offset = DEFAULT_SEQNUM_OFFSET; + dtmfsrc->ts_offset = DEFAULT_TIMESTAMP_OFFSET; dtmfsrc->pt = DEFAULT_PT; dtmfsrc->clock_rate = DEFAULT_CLOCK_RATE; @@ -246,11 +271,32 @@ gst_rtp_dtmf_src_handle_event (GstPad * pad, GstEvent * event) gst_rtp_dtmf_src_stop (dtmfsrc); } } + + break; + } + case GST_EVENT_FLUSH_STOP: + result = gst_pad_event_default (pad, event); + gst_segment_init (&dtmfsrc->segment, GST_FORMAT_UNDEFINED); + break; + case GST_EVENT_NEWSEGMENT: + { + gboolean update; + gdouble rate; + GstFormat fmt; + gint64 start, stop, position; + + gst_event_parse_new_segment (event, &update, &rate, &fmt, &start, &stop, + &position); + gst_segment_set_newsegment (&dtmfsrc->segment, update, rate, fmt, + start, stop, position); + break; } default: + result = gst_pad_event_default (pad, event); break; } + gst_event_unref (event); return result; } @@ -264,6 +310,12 @@ gst_rtp_dtmf_src_set_property (GObject * object, guint prop_id, dtmfsrc = GST_RTP_DTMF_SRC (object); switch (prop_id) { + case PROP_TIMESTAMP_OFFSET: + dtmfsrc->ts_offset = g_value_get_int (value); + break; + case PROP_SEQNUM_OFFSET: + dtmfsrc->seqnum_offset = g_value_get_int (value); + break; case PROP_CLOCK_RATE: dtmfsrc->clock_rate = g_value_get_uint (value); gst_rtp_dtmf_src_set_caps (dtmfsrc); @@ -290,6 +342,12 @@ gst_rtp_dtmf_src_get_property (GObject * object, guint prop_id, GValue * value, dtmfsrc = GST_RTP_DTMF_SRC (object); switch (prop_id) { + case PROP_TIMESTAMP_OFFSET: + g_value_set_int (value, dtmfsrc->ts_offset); + break; + case PROP_SEQNUM_OFFSET: + g_value_set_int (value, dtmfsrc->seqnum_offset); + break; case PROP_CLOCK_RATE: g_value_set_uint (value, dtmfsrc->clock_rate); break; @@ -299,6 +357,12 @@ gst_rtp_dtmf_src_get_property (GObject * object, guint prop_id, GValue * value, case PROP_PT: g_value_set_uint (value, dtmfsrc->pt); break; + case PROP_TIMESTAMP: + g_value_set_uint (value, dtmfsrc->rtp_timestamp); + break; + case PROP_SEQNUM: + g_value_set_uint (value, dtmfsrc->seqnum); + break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; @@ -309,20 +373,43 @@ static void gst_rtp_dtmf_src_start (GstRTPDTMFSrc *dtmfsrc, gint event_number, gint event_volume) { + GstClock *clock; + g_return_if_fail (dtmfsrc->payload == NULL); dtmfsrc->payload = g_new0 (GstRTPDTMFPayload, 1); dtmfsrc->payload->event = CLAMP (event_number, MIN_EVENT, MAX_EVENT); dtmfsrc->payload->volume = CLAMP (event_volume, MIN_VOLUME, MAX_VOLUME); - dtmfsrc->next_ts = gst_clock_get_time (GST_ELEMENT_CLOCK (dtmfsrc)); + gst_segment_init (&dtmfsrc->segment, GST_FORMAT_UNDEFINED); dtmfsrc->first_packet = TRUE; + clock = GST_ELEMENT_CLOCK (dtmfsrc); + if (clock != NULL) { + dtmfsrc->timestamp = gst_clock_get_time (GST_ELEMENT_CLOCK (dtmfsrc)); + } + + else { + GST_ERROR_OBJECT (dtmfsrc, "No clock set for element %s", GST_ELEMENT_NAME (dtmfsrc)); + dtmfsrc->timestamp = GST_CLOCK_TIME_NONE; + } + if (dtmfsrc->ssrc == -1) dtmfsrc->current_ssrc = g_random_int (); else dtmfsrc->current_ssrc = dtmfsrc->ssrc; + if (dtmfsrc->seqnum_offset == -1) + dtmfsrc->seqnum_base = g_random_int_range (0, G_MAXUINT16); + else + dtmfsrc->seqnum_base = dtmfsrc->seqnum_offset; + dtmfsrc->seqnum = dtmfsrc->seqnum_base; + + if (dtmfsrc->ts_offset == -1) + dtmfsrc->ts_base = g_random_int (); + else + dtmfsrc->ts_base = dtmfsrc->ts_offset; + if (!gst_pad_start_task (dtmfsrc->srcpad, (GstTaskFunction) gst_rtp_dtmf_src_push_next_rtp_packet, dtmfsrc)) { GST_ERROR_OBJECT (dtmfsrc, "Failed to start task on src pad"); @@ -348,13 +435,30 @@ gst_rtp_dtmf_src_stop (GstRTPDTMFSrc *dtmfsrc) } static void +gst_rtp_dtmf_src_calc_rtp_timestamp (GstRTPDTMFSrc *dtmfsrc) +{ + /* add our random offset to the timestamp */ + dtmfsrc->rtp_timestamp = dtmfsrc->ts_base; + + if (GST_CLOCK_TIME_IS_VALID (dtmfsrc->timestamp)) { + gint64 rtime; + + rtime = + gst_segment_to_running_time (&dtmfsrc->segment, GST_FORMAT_TIME, + dtmfsrc->timestamp); + rtime = gst_util_uint64_scale_int (rtime, dtmfsrc->clock_rate, GST_SECOND); + + dtmfsrc->rtp_timestamp += rtime; + } +} + +static void gst_rtp_dtmf_src_push_next_rtp_packet (GstRTPDTMFSrc *dtmfsrc) { GstBuffer *buf = NULL; GstFlowReturn ret; GstRTPDTMFPayload *payload; GstClock * clock; - guint32 rtp_ts; /* create buffer to hold the payload */ buf = gst_rtp_buffer_new_allocate (sizeof (GstRTPDTMFPayload), 0, 0); @@ -365,10 +469,13 @@ gst_rtp_dtmf_src_push_next_rtp_packet (GstRTPDTMFSrc *dtmfsrc) gst_rtp_buffer_set_marker (buf, TRUE); dtmfsrc->first_packet = FALSE; } + dtmfsrc->seqnum++; + gst_rtp_buffer_set_seq (buf, dtmfsrc->seqnum); /* timestamp and duration of GstBuffer */ - GST_BUFFER_TIMESTAMP (buf) = dtmfsrc->next_ts; GST_BUFFER_DURATION (buf) = DEFAULT_PACKET_INTERVAL * GST_MSECOND; + dtmfsrc->timestamp += GST_BUFFER_DURATION (buf); + GST_BUFFER_TIMESTAMP (buf) = dtmfsrc->timestamp; /* duration of DTMF payload */ dtmfsrc->payload->duration += @@ -376,8 +483,8 @@ gst_rtp_dtmf_src_push_next_rtp_packet (GstRTPDTMFSrc *dtmfsrc) payload = (GstRTPDTMFPayload *) gst_rtp_buffer_get_payload (buf); /* timestamp of RTP header */ - rtp_ts = dtmfsrc->next_ts * dtmfsrc->clock_rate / GST_SECOND; - gst_rtp_buffer_set_timestamp (buf, rtp_ts); + gst_rtp_dtmf_src_calc_rtp_timestamp (dtmfsrc); + gst_rtp_buffer_set_timestamp (buf, dtmfsrc->rtp_timestamp); /* copy payload and convert to network-byte order */ g_memmove (payload, dtmfsrc->payload, sizeof (GstRTPDTMFPayload)); @@ -389,7 +496,7 @@ gst_rtp_dtmf_src_push_next_rtp_packet (GstRTPDTMFSrc *dtmfsrc) GstClockID clock_id; GstClockReturn clock_ret; - clock_id = gst_clock_new_single_shot_id (clock, dtmfsrc->next_ts); + clock_id = gst_clock_new_single_shot_id (clock, dtmfsrc->timestamp); clock_ret = gst_clock_id_wait (clock_id, NULL); if (clock_ret != GST_CLOCK_OK && clock_ret != GST_CLOCK_EARLY) { GST_ERROR_OBJECT (dtmfsrc, "Failed to wait on clock %s", @@ -402,8 +509,6 @@ gst_rtp_dtmf_src_push_next_rtp_packet (GstRTPDTMFSrc *dtmfsrc) GST_ERROR_OBJECT (dtmfsrc, "No clock set for element %s", GST_ELEMENT_NAME (dtmfsrc)); } - dtmfsrc->next_ts += GST_BUFFER_DURATION (buf); - GST_DEBUG_OBJECT (dtmfsrc, "pushing buffer on src pad of size %d", GST_BUFFER_SIZE (buf)); ret = gst_pad_push (dtmfsrc->srcpad, buf); @@ -425,7 +530,9 @@ gst_rtp_dtmf_src_set_caps (GstRTPDTMFSrc *dtmfsrc) "payload", G_TYPE_INT, dtmfsrc->pt, "clock-rate", G_TYPE_INT, dtmfsrc->clock_rate, "encoding-name", G_TYPE_STRING, "telephone-event", - "ssrc", G_TYPE_UINT, dtmfsrc->current_ssrc, NULL); + "ssrc", G_TYPE_UINT, dtmfsrc->current_ssrc, + "clock-base", G_TYPE_UINT, dtmfsrc->ts_base, + "seqnum-base", G_TYPE_UINT, dtmfsrc->seqnum_base, NULL); if (!gst_pad_set_caps (dtmfsrc->srcpad, caps)) { GST_ERROR_OBJECT (dtmfsrc, "Failed to set caps % on src pad", @@ -504,8 +611,6 @@ plugin_init (GstPlugin * plugin) return TRUE; } -#define PACKAGE "gstreamer" - GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, "dtmf", diff --git a/gst/rtpdtmf/gstrtpdtmfsrc.h b/gst/rtpdtmf/gstrtpdtmfsrc.h index 05b487fc..e8a0e850 100644 --- a/gst/rtpdtmf/gstrtpdtmfsrc.h +++ b/gst/rtpdtmf/gstrtpdtmfsrc.h @@ -68,12 +68,21 @@ struct _GstRTPDTMFSrc { GstPad *srcpad; GstRTPDTMFPayload *payload; - GstClockTime next_ts; + guint32 ts_base; + guint16 seqnum_base; + + gint16 seqnum_offset; + guint16 seqnum; + gint32 ts_offset; + guint32 rtp_timestamp; guint32 clock_rate; guint pt; guint ssrc; guint current_ssrc; gboolean first_packet; + + GstClockTime timestamp; + GstSegment segment; }; struct _GstRTPDTMFSrcClass { |