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jitterbuffer: hook up the mode property

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Expose a mode property on the jitterbuffer.
Fix the case where timestamps are -1 in the check for outgoing timestamps.
This commit is contained in:
Wim Taymans 2009-10-01 12:09:58 +02:00
parent be4517a6b8
commit 56b29c9a6b
2 changed files with 50 additions and 5 deletions
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46
gst/rtpmanager/gstrtpjitterbuffer.c
View file

@ -70,10 +70,6 @@
GST_DEBUG_CATEGORY (rtpjitterbuffer_debug);
#define GST_CAT_DEFAULT (rtpjitterbuffer_debug)
/* low and high threshold tell the queue when to start and stop buffering */
#define LOW_THRESHOLD 0.2
#define HIGH_THRESHOLD 0.8
/* elementfactory information */
static const GstElementDetails gst_rtp_jitter_buffer_details =
GST_ELEMENT_DETAILS ("RTP packet jitter-buffer",
@ -92,10 +88,31 @@ enum
LAST_SIGNAL
};
#define RTP_TYPE_JITTER_BUFFER_MODE (rtp_jitter_buffer_mode_get_type())
static GType
rtp_jitter_buffer_mode_get_type (void)
{
static GType jitter_buffer_mode_type = 0;
static const GEnumValue jitter_buffer_modes[] = {
{RTP_JITTER_BUFFER_MODE_NONE, "Only use RTP timestamps", "none"},
{RTP_JITTER_BUFFER_MODE_SLAVE, "Slave receiver to sender clock", "slave"},
{RTP_JITTER_BUFFER_MODE_BUFFER, "Do low/high watermark buffering",
"buffer"},
{0, NULL, NULL},
};
if (!jitter_buffer_mode_type) {
jitter_buffer_mode_type =
g_enum_register_static ("RTPJitterBufferMode", jitter_buffer_modes);
}
return jitter_buffer_mode_type;
}
#define DEFAULT_LATENCY_MS 200
#define DEFAULT_DROP_ON_LATENCY FALSE
#define DEFAULT_TS_OFFSET 0
#define DEFAULT_DO_LOST FALSE
#define DEFAULT_MODE RTP_JITTER_BUFFER_MODE_SLAVE
enum
{
@ -104,6 +121,7 @@ enum
PROP_DROP_ON_LATENCY,
PROP_TS_OFFSET,
PROP_DO_LOST,
PROP_MODE,
PROP_LAST
};
@ -341,6 +359,16 @@ gst_rtp_jitter_buffer_class_init (GstRtpJitterBufferClass * klass)
g_param_spec_boolean ("do-lost", "Do Lost",
"Send an event downstream when a packet is lost", DEFAULT_DO_LOST,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstRtpJitterBuffer::mode:
*
* Control the buffering and timestamping mode used by the jitterbuffer.
*/
g_object_class_install_property (gobject_class, PROP_MODE,
g_param_spec_enum ("mode", "Mode",
"Control the buffering algorithm in use", RTP_TYPE_JITTER_BUFFER_MODE,
DEFAULT_MODE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstRtpJitterBuffer::request-pt-map:
* @buffer: the object which received the signal
@ -1968,6 +1996,11 @@ gst_rtp_jitter_buffer_set_property (GObject * object,
priv->do_lost = g_value_get_boolean (value);
JBUF_UNLOCK (priv);
break;
case PROP_MODE:
JBUF_LOCK (priv);
rtp_jitter_buffer_set_mode (priv->jbuf, g_value_get_enum (value));
JBUF_UNLOCK (priv);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -2005,6 +2038,11 @@ gst_rtp_jitter_buffer_get_property (GObject * object,
g_value_set_boolean (value, priv->do_lost);
JBUF_UNLOCK (priv);
break;
case PROP_MODE:
JBUF_LOCK (priv);
g_value_set_enum (value, rtp_jitter_buffer_get_mode (priv->jbuf));
JBUF_UNLOCK (priv);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;

9
gst/rtpmanager/rtpjitterbuffer.c
View file

@ -504,7 +504,14 @@ rtp_jitter_buffer_insert (RTPJitterBuffer * jbuf, GstBuffer * buf,
rtptime = gst_rtp_buffer_get_timestamp (buf);
switch (jbuf->mode) {
case RTP_JITTER_BUFFER_MODE_NONE:
time = GST_BUFFER_TIMESTAMP (buf);
/* send 0 as the first timestamp and -1 for the other ones. This will
* interpollate them from the RTP timestamps with a 0 origin. */
if (jbuf->base_time == -1)
time = 0;
else
time = -1;
time = calculate_skew (jbuf, rtptime, time, clock_rate, max_delay);
break;
case RTP_JITTER_BUFFER_MODE_SLAVE:
time = calculate_skew (jbuf, rtptime, time, clock_rate, max_delay);