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Getting the GSM (de)payloader working and compatible with our plans for RTP.

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Original commit message from CVS:
Getting the GSM (de)payloader working and compatible with our plans for RTP.
This commit is contained in:
Zeeshan Ali 2005-10-25 15:07:02 +00:00
parent 4f40e2e01e
commit 240bea7417
9 changed files with 180 additions and 402 deletions
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14
ChangeLog
View file

@ -1,3 +1,17 @@
2005-10-25 Zeeshan Ali <zeenix@gmail.com>
* gst/rtp/gstrtpgsmenc.c: (gst_rtpgsmenc_get_type),
(gst_rtpgsmenc_base_init), (gst_rtpgsmenc_class_init),
(gst_rtpgsmenc_init), (gst_rtpgsmenc_setcaps),
(gst_rtpgsmenc_handle_buffer):
* gst/rtp/gstrtpgsmenc.h:
* gst/rtp/gstrtpgsmparse.c: (gst_rtpgsmparse_get_type),
(gst_rtpgsmparse_base_init), (gst_rtpgsmparse_class_init),
(gst_rtpgsmparse_init), (gst_rtpgsmparse_setcaps),
(gst_rtpgsmparse_finalize), (gst_rtpgsmparse_process):
* gst/rtp/gstrtpgsmparse.h:
Getting the GSM (de)payloader working and compatible with our plans for RTP.
2005-10-25 Julien MOUTTE <julien@moutte.net> 2005-10-25 Julien MOUTTE <julien@moutte.net>
* ext/libpng/gstpngdec.c: (user_info_callback), * ext/libpng/gstpngdec.c: (user_info_callback),

210
gst/rtp/gstrtpgsmdepay.c
View file

@ -28,24 +28,18 @@ static GstElementDetails gst_rtp_gsmparse_details = {
"Zeeshan Ali <zak147@yahoo.com>" "Zeeshan Ali <zak147@yahoo.com>"
}; };
/* RtpGSMParse signals and args */ /* RTPGSMParse signals and args */
enum enum
{ {
/* FILL ME */ /* FILL ME */
LAST_SIGNAL LAST_SIGNAL
}; };
enum
{
ARG_0,
ARG_FREQUENCY
};
static GstStaticPadTemplate gst_rtpgsmparse_src_template = static GstStaticPadTemplate gst_rtpgsmparse_src_template =
GST_STATIC_PAD_TEMPLATE ("src", GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC, GST_PAD_SRC,
GST_PAD_ALWAYS, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-gsm, " "rate = (int) [ 1000, 48000 ]") GST_STATIC_CAPS ("audio/x-gsm, " "rate = (int) 8000, " "channels = 1")
); );
static GstStaticPadTemplate gst_rtpgsmparse_sink_template = static GstStaticPadTemplate gst_rtpgsmparse_sink_template =
@ -58,21 +52,14 @@ GST_STATIC_PAD_TEMPLATE ("sink",
"clock-rate = (int) 8000, " "encoding-name = (string) \"GSM\"") "clock-rate = (int) 8000, " "encoding-name = (string) \"GSM\"")
); );
static void gst_rtpgsmparse_class_init (GstRTPGSMParseClass * klass);
static void gst_rtpgsmparse_class_init (GstRtpGSMParseClass * klass); static void gst_rtpgsmparse_base_init (GstRTPGSMParseClass * klass);
static void gst_rtpgsmparse_base_init (GstRtpGSMParseClass * klass); static void gst_rtpgsmparse_init (GstRTPGSMParse * rtpgsmparse);
static void gst_rtpgsmparse_init (GstRtpGSMParse * rtpgsmparse); static GstBuffer *gst_rtpgsmparse_process (GstBaseRTPDepayload * depayload,
GstBuffer * buf);
static GstFlowReturn gst_rtpgsmparse_chain (GstPad * pad, GstBuffer * buffer); static gboolean gst_rtpgsmparse_setcaps (GstBaseRTPDepayload * payload,
GstCaps * caps);
static void gst_rtpgsmparse_set_property (GObject * object, guint prop_id, static void gst_rtpgsmparse_finalize (GObject * object);
const GValue * value, GParamSpec * pspec);
static void gst_rtpgsmparse_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstStateChangeReturn gst_rtpgsmparse_change_state (GstElement * element,
GstStateChange transition);
static GstElementClass *parent_class = NULL; static GstElementClass *parent_class = NULL;
static GType static GType
@ -82,26 +69,26 @@ gst_rtpgsmparse_get_type (void)
if (!rtpgsmparse_type) { if (!rtpgsmparse_type) {
static const GTypeInfo rtpgsmparse_info = { static const GTypeInfo rtpgsmparse_info = {
sizeof (GstRtpGSMParseClass), sizeof (GstRTPGSMParseClass),
(GBaseInitFunc) gst_rtpgsmparse_base_init, (GBaseInitFunc) gst_rtpgsmparse_base_init,
NULL, NULL,
(GClassInitFunc) gst_rtpgsmparse_class_init, (GClassInitFunc) gst_rtpgsmparse_class_init,
NULL, NULL,
NULL, NULL,
sizeof (GstRtpGSMParse), sizeof (GstRTPGSMParse),
0, 0,
(GInstanceInitFunc) gst_rtpgsmparse_init, (GInstanceInitFunc) gst_rtpgsmparse_init,
}; };
rtpgsmparse_type = rtpgsmparse_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstRtpGSMParse", g_type_register_static (GST_TYPE_BASE_RTP_DEPAYLOAD, "GstRTPGSMParse",
&rtpgsmparse_info, 0); &rtpgsmparse_info, 0);
} }
return rtpgsmparse_type; return rtpgsmparse_type;
} }
static void static void
gst_rtpgsmparse_base_init (GstRtpGSMParseClass * klass) gst_rtpgsmparse_base_init (GstRTPGSMParseClass * klass)
{ {
GstElementClass *element_class = GST_ELEMENT_CLASS (klass); GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
@ -113,172 +100,67 @@ gst_rtpgsmparse_base_init (GstRtpGSMParseClass * klass)
} }
static void static void
gst_rtpgsmparse_class_init (GstRtpGSMParseClass * klass) gst_rtpgsmparse_class_init (GstRTPGSMParseClass * klass)
{ {
GObjectClass *gobject_class; GObjectClass *gobject_class;
GstElementClass *gstelement_class; GstElementClass *gstelement_class;
GstBaseRTPDepayloadClass *gstbasertpdepayload_class;
gobject_class = (GObjectClass *) klass; gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass; gstelement_class = (GstElementClass *) klass;
gstbasertpdepayload_class = (GstBaseRTPDepayloadClass *) klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT); parent_class = g_type_class_ref (GST_TYPE_BASE_RTP_DEPAYLOAD);
gobject_class->set_property = gst_rtpgsmparse_set_property; gstbasertpdepayload_class->process = gst_rtpgsmparse_process;
gobject_class->get_property = gst_rtpgsmparse_get_property; gstbasertpdepayload_class->set_caps = gst_rtpgsmparse_setcaps;
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FREQUENCY, gobject_class->finalize = gst_rtpgsmparse_finalize;
g_param_spec_int ("frequency", "frequency", "frequency",
G_MININT, G_MAXINT, 8000, G_PARAM_READWRITE));
gstelement_class->change_state = gst_rtpgsmparse_change_state;
} }
static void static void
gst_rtpgsmparse_init (GstRtpGSMParse * rtpgsmparse) gst_rtpgsmparse_init (GstRTPGSMParse * rtpgsmparse)
{ {
rtpgsmparse->srcpad = GST_BASE_RTP_DEPAYLOAD (rtpgsmparse)->clock_rate = 8000;
gst_pad_new_from_template (gst_static_pad_template_get }
(&gst_rtpgsmparse_src_template), "src");
rtpgsmparse->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rtpgsmparse_sink_template), "sink");
gst_element_add_pad (GST_ELEMENT (rtpgsmparse), rtpgsmparse->srcpad);
gst_element_add_pad (GST_ELEMENT (rtpgsmparse), rtpgsmparse->sinkpad);
gst_pad_set_chain_function (rtpgsmparse->sinkpad, gst_rtpgsmparse_chain);
rtpgsmparse->frequency = 8000; static gboolean
gst_rtpgsmparse_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
{
GstRTPGSMParse *rtpgsmparse;
GstCaps *srccaps;
rtpgsmparse = GST_RTP_GSM_PARSE (depayload);
srccaps = gst_static_pad_template_get_caps (&gst_rtpgsmparse_src_template);
return gst_pad_set_caps (GST_BASE_RTP_DEPAYLOAD_SRCPAD (depayload), srccaps);
} }
static void static void
gst_rtpgsm_caps_nego (GstRtpGSMParse * rtpgsmparse) gst_rtpgsmparse_finalize (GObject * object)
{ {
GstCaps *caps; if (G_OBJECT_CLASS (parent_class)->finalize)
G_OBJECT_CLASS (parent_class)->finalize (object);
caps = gst_caps_new_simple ("audio/x-gsm",
"rate", G_TYPE_INT, rtpgsmparse->frequency, NULL);
gst_pad_set_caps (rtpgsmparse->srcpad, caps);
gst_caps_unref (caps);
} }
static GstFlowReturn static GstBuffer *
gst_rtpgsmparse_chain (GstPad * pad, GstBuffer * buf) gst_rtpgsmparse_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
{ {
GstRtpGSMParse *rtpgsmparse; GstBuffer *outbuf = NULL;
GstBuffer *outbuf;
GstFlowReturn ret;
guint8 pt;
rtpgsmparse = GST_RTP_GSM_PARSE (gst_pad_get_parent (pad));
if (GST_PAD_CAPS (rtpgsmparse->srcpad) == NULL) {
gst_rtpgsm_caps_nego (rtpgsmparse);
}
if (!gst_rtpbuffer_validate (buf))
goto bad_packet;
if ((pt = gst_rtpbuffer_get_payload_type (buf)) != GST_RTP_PAYLOAD_GSM)
goto bad_payload;
{
gint payload_len; gint payload_len;
guint8 *payload; guint8 *payload;
guint32 timestamp;
GST_DEBUG ("process : got %d bytes, mark %d ts %u seqn %d",
GST_BUFFER_SIZE (buf),
gst_rtpbuffer_get_marker (buf),
gst_rtpbuffer_get_timestamp (buf), gst_rtpbuffer_get_seq (buf));
payload_len = gst_rtpbuffer_get_payload_len (buf); payload_len = gst_rtpbuffer_get_payload_len (buf);
payload = gst_rtpbuffer_get_payload (buf); payload = gst_rtpbuffer_get_payload (buf);
timestamp = gst_rtpbuffer_get_timestamp (buf);
outbuf = gst_buffer_new_and_alloc (payload_len); outbuf = gst_buffer_new_and_alloc (payload_len);
GST_BUFFER_TIMESTAMP (outbuf) = timestamp * GST_SECOND / 8000;
memcpy (GST_BUFFER_DATA (outbuf), payload, payload_len); memcpy (GST_BUFFER_DATA (outbuf), payload, payload_len);
return outbuf;
GST_DEBUG ("pushing buffer of size %d", GST_BUFFER_SIZE (outbuf));
gst_buffer_unref (buf);
ret = gst_pad_push (rtpgsmparse->srcpad, outbuf);
}
return ret;
bad_packet:
{
GST_DEBUG ("Packet did not validate");
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
bad_payload:
{
GST_DEBUG ("Unexpected payload type %u", pt);
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
}
static void
gst_rtpgsmparse_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstRtpGSMParse *rtpgsmparse;
rtpgsmparse = GST_RTP_GSM_PARSE (object);
switch (prop_id) {
case ARG_FREQUENCY:
rtpgsmparse->frequency = g_value_get_int (value);
break;
default:
break;
}
}
static void
gst_rtpgsmparse_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstRtpGSMParse *rtpgsmparse;
rtpgsmparse = GST_RTP_GSM_PARSE (object);
switch (prop_id) {
case ARG_FREQUENCY:
g_value_set_int (value, rtpgsmparse->frequency);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstStateChangeReturn
gst_rtpgsmparse_change_state (GstElement * element, GstStateChange transition)
{
GstRtpGSMParse *rtpgsmparse;
GstStateChangeReturn ret;
rtpgsmparse = GST_RTP_GSM_PARSE (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
} }
gboolean gboolean

17
gst/rtp/gstrtpgsmdepay.h
View file

@ -21,26 +21,27 @@
#define __GST_RTP_GSM_PARSE_H__ #define __GST_RTP_GSM_PARSE_H__
#include <gst/gst.h> #include <gst/gst.h>
#include <gst/rtp/gstbasertpdepayload.h>
G_BEGIN_DECLS G_BEGIN_DECLS
typedef struct _GstRtpGSMParse GstRtpGSMParse; typedef struct _GstRTPGSMParse GstRTPGSMParse;
typedef struct _GstRtpGSMParseClass GstRtpGSMParseClass; typedef struct _GstRTPGSMParseClass GstRTPGSMParseClass;
#define GST_TYPE_RTP_GSM_PARSE \ #define GST_TYPE_RTP_GSM_PARSE \
(gst_rtpgsmparse_get_type()) (gst_rtpgsmparse_get_type())
#define GST_RTP_GSM_PARSE(obj) \ #define GST_RTP_GSM_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_GSM_PARSE,GstRtpGSMParse)) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_GSM_PARSE,GstRTPGSMParse))
#define GST_RTP_GSM_PARSE_CLASS(klass) \ #define GST_RTP_GSM_PARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_GSM_PARSE,GstRtpGSMParse)) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_GSM_PARSE,GstRTPGSMParse))
#define GST_IS_RTP_GSM_PARSE(obj) \ #define GST_IS_RTP_GSM_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_GSM_PARSE)) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_GSM_PARSE))
#define GST_IS_RTP_GSM_PARSE_CLASS(obj) \ #define GST_IS_RTP_GSM_PARSE_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_GSM_PARSE)) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_GSM_PARSE))
struct _GstRtpGSMParse struct _GstRTPGSMParse
{ {
GstElement element; GstBaseRTPDepayload depayload;
GstPad *sinkpad; GstPad *sinkpad;
GstPad *srcpad; GstPad *srcpad;
@ -48,9 +49,9 @@ struct _GstRtpGSMParse
guint frequency; guint frequency;
}; };
struct _GstRtpGSMParseClass struct _GstRTPGSMParseClass
{ {
GstElementClass parent_class; GstBaseRTPDepayloadClass parent_class;
}; };
gboolean gst_rtpgsmparse_plugin_init (GstPlugin * plugin); gboolean gst_rtpgsmparse_plugin_init (GstPlugin * plugin);

33
gst/rtp/gstrtpgsmenc.c
View file

@ -39,7 +39,7 @@ static GstStaticPadTemplate gst_rtpgsmenc_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink", GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK, GST_PAD_SINK,
GST_PAD_ALWAYS, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-gsm, " "rate = (int) [ 1000, 48000 ]") GST_STATIC_CAPS ("audio/x-gsm, " "rate = (int) 8000, " "channels = (int) 1")
); );
static GstStaticPadTemplate gst_rtpgsmenc_src_template = static GstStaticPadTemplate gst_rtpgsmenc_src_template =
@ -53,9 +53,9 @@ GST_STATIC_PAD_TEMPLATE ("src",
); );
static void gst_rtpgsmenc_class_init (GstRtpGSMEncClass * klass); static void gst_rtpgsmenc_class_init (GstRTPGSMEncClass * klass);
static void gst_rtpgsmenc_base_init (GstRtpGSMEncClass * klass); static void gst_rtpgsmenc_base_init (GstRTPGSMEncClass * klass);
static void gst_rtpgsmenc_init (GstRtpGSMEnc * rtpgsmenc); static void gst_rtpgsmenc_init (GstRTPGSMEnc * rtpgsmenc);
static gboolean gst_rtpgsmenc_setcaps (GstBaseRTPPayload * payload, static gboolean gst_rtpgsmenc_setcaps (GstBaseRTPPayload * payload,
GstCaps * caps); GstCaps * caps);
@ -71,26 +71,26 @@ gst_rtpgsmenc_get_type (void)
if (!rtpgsmenc_type) { if (!rtpgsmenc_type) {
static const GTypeInfo rtpgsmenc_info = { static const GTypeInfo rtpgsmenc_info = {
sizeof (GstRtpGSMEncClass), sizeof (GstRTPGSMEncClass),
(GBaseInitFunc) gst_rtpgsmenc_base_init, (GBaseInitFunc) gst_rtpgsmenc_base_init,
NULL, NULL,
(GClassInitFunc) gst_rtpgsmenc_class_init, (GClassInitFunc) gst_rtpgsmenc_class_init,
NULL, NULL,
NULL, NULL,
sizeof (GstRtpGSMEnc), sizeof (GstRTPGSMEnc),
0, 0,
(GInstanceInitFunc) gst_rtpgsmenc_init, (GInstanceInitFunc) gst_rtpgsmenc_init,
}; };
rtpgsmenc_type = rtpgsmenc_type =
g_type_register_static (GST_TYPE_BASE_RTP_PAYLOAD, "GstRtpGSMEnc", g_type_register_static (GST_TYPE_BASE_RTP_PAYLOAD, "GstRTPGSMEnc",
&rtpgsmenc_info, 0); &rtpgsmenc_info, 0);
} }
return rtpgsmenc_type; return rtpgsmenc_type;
} }
static void static void
gst_rtpgsmenc_base_init (GstRtpGSMEncClass * klass) gst_rtpgsmenc_base_init (GstRTPGSMEncClass * klass)
{ {
GstElementClass *element_class = GST_ELEMENT_CLASS (klass); GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
@ -102,7 +102,7 @@ gst_rtpgsmenc_base_init (GstRtpGSMEncClass * klass)
} }
static void static void
gst_rtpgsmenc_class_init (GstRtpGSMEncClass * klass) gst_rtpgsmenc_class_init (GstRTPGSMEncClass * klass)
{ {
GObjectClass *gobject_class; GObjectClass *gobject_class;
GstElementClass *gstelement_class; GstElementClass *gstelement_class;
@ -119,15 +119,16 @@ gst_rtpgsmenc_class_init (GstRtpGSMEncClass * klass)
} }
static void static void
gst_rtpgsmenc_init (GstRtpGSMEnc * rtpgsmenc) gst_rtpgsmenc_init (GstRTPGSMEnc * rtpgsmenc)
{ {
rtpgsmenc->frequency = 8000; GST_BASE_RTP_PAYLOAD (rtpgsmenc)->clock_rate = 8000;
GST_BASE_RTP_PAYLOAD_PT (rtpgsmenc) = GST_RTP_PAYLOAD_GSM;
} }
static gboolean static gboolean
gst_rtpgsmenc_setcaps (GstBaseRTPPayload * payload, GstCaps * caps) gst_rtpgsmenc_setcaps (GstBaseRTPPayload * payload, GstCaps * caps)
{ {
GstRtpGSMEnc *rtpgsmenc; GstRTPGSMEnc *rtpgsmenc;
GstStructure *structure; GstStructure *structure;
gboolean ret; gboolean ret;
GstCaps *srccaps; GstCaps *srccaps;
@ -136,7 +137,9 @@ gst_rtpgsmenc_setcaps (GstBaseRTPPayload * payload, GstCaps * caps)
structure = gst_caps_get_structure (caps, 0); structure = gst_caps_get_structure (caps, 0);
ret = gst_structure_get_int (structure, "rate", &rtpgsmenc->frequency); ret =
gst_structure_get_int (structure, "rate",
&(GST_BASE_RTP_PAYLOAD (rtpgsmenc)->clock_rate));
if (!ret) if (!ret)
return FALSE; return FALSE;
@ -151,7 +154,7 @@ static GstFlowReturn
gst_rtpgsmenc_handle_buffer (GstBaseRTPPayload * basepayload, gst_rtpgsmenc_handle_buffer (GstBaseRTPPayload * basepayload,
GstBuffer * buffer) GstBuffer * buffer)
{ {
GstRtpGSMEnc *rtpgsmenc; GstRTPGSMEnc *rtpgsmenc;
guint size, payload_len; guint size, payload_len;
GstBuffer *outbuf; GstBuffer *outbuf;
guint8 *payload, *data; guint8 *payload, *data;
@ -170,8 +173,6 @@ gst_rtpgsmenc_handle_buffer (GstBaseRTPPayload * basepayload,
/* FIXME, assert for now */ /* FIXME, assert for now */
g_assert (GST_BUFFER_SIZE (outbuf) < GST_BASE_RTP_PAYLOAD_MTU (rtpgsmenc)); g_assert (GST_BUFFER_SIZE (outbuf) < GST_BASE_RTP_PAYLOAD_MTU (rtpgsmenc));
gst_rtpbuffer_set_timestamp (outbuf, timestamp * 8000 / GST_SECOND);
/* copy timestamp */ /* copy timestamp */
GST_BUFFER_TIMESTAMP (outbuf) = timestamp; GST_BUFFER_TIMESTAMP (outbuf) = timestamp;

14
gst/rtp/gstrtpgsmenc.h
View file

@ -26,28 +26,26 @@
G_BEGIN_DECLS G_BEGIN_DECLS
typedef struct _GstRtpGSMEnc GstRtpGSMEnc; typedef struct _GstRTPGSMEnc GstRTPGSMEnc;
typedef struct _GstRtpGSMEncClass GstRtpGSMEncClass; typedef struct _GstRTPGSMEncClass GstRTPGSMEncClass;
#define GST_TYPE_RTP_GSM_ENC \ #define GST_TYPE_RTP_GSM_ENC \
(gst_rtpgsmenc_get_type()) (gst_rtpgsmenc_get_type())
#define GST_RTP_GSM_ENC(obj) \ #define GST_RTP_GSM_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_GSM_ENC,GstRtpGSMEnc)) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_GSM_ENC,GstRTPGSMEnc))
#define GST_RTP_GSM_ENC_CLASS(klass) \ #define GST_RTP_GSM_ENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_GSM_ENC,GstRtpGSMEnc)) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_GSM_ENC,GstRTPGSMEnc))
#define GST_IS_RTP_GSM_ENC(obj) \ #define GST_IS_RTP_GSM_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_GSM_ENC)) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_GSM_ENC))
#define GST_IS_RTP_GSM_ENC_CLASS(obj) \ #define GST_IS_RTP_GSM_ENC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_GSM_ENC)) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_GSM_ENC))
struct _GstRtpGSMEnc struct _GstRTPGSMEnc
{ {
GstBaseRTPPayload payload; GstBaseRTPPayload payload;
gint frequency;
}; };
struct _GstRtpGSMEncClass struct _GstRTPGSMEncClass
{ {
GstBaseRTPPayloadClass parent_class; GstBaseRTPPayloadClass parent_class;
}; };

210
gst/rtp/gstrtpgsmparse.c
View file

@ -28,24 +28,18 @@ static GstElementDetails gst_rtp_gsmparse_details = {
"Zeeshan Ali <zak147@yahoo.com>" "Zeeshan Ali <zak147@yahoo.com>"
}; };
/* RtpGSMParse signals and args */ /* RTPGSMParse signals and args */
enum enum
{ {
/* FILL ME */ /* FILL ME */
LAST_SIGNAL LAST_SIGNAL
}; };
enum
{
ARG_0,
ARG_FREQUENCY
};
static GstStaticPadTemplate gst_rtpgsmparse_src_template = static GstStaticPadTemplate gst_rtpgsmparse_src_template =
GST_STATIC_PAD_TEMPLATE ("src", GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC, GST_PAD_SRC,
GST_PAD_ALWAYS, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-gsm, " "rate = (int) [ 1000, 48000 ]") GST_STATIC_CAPS ("audio/x-gsm, " "rate = (int) 8000, " "channels = 1")
); );
static GstStaticPadTemplate gst_rtpgsmparse_sink_template = static GstStaticPadTemplate gst_rtpgsmparse_sink_template =
@ -58,21 +52,14 @@ GST_STATIC_PAD_TEMPLATE ("sink",
"clock-rate = (int) 8000, " "encoding-name = (string) \"GSM\"") "clock-rate = (int) 8000, " "encoding-name = (string) \"GSM\"")
); );
static void gst_rtpgsmparse_class_init (GstRTPGSMParseClass * klass);
static void gst_rtpgsmparse_class_init (GstRtpGSMParseClass * klass); static void gst_rtpgsmparse_base_init (GstRTPGSMParseClass * klass);
static void gst_rtpgsmparse_base_init (GstRtpGSMParseClass * klass); static void gst_rtpgsmparse_init (GstRTPGSMParse * rtpgsmparse);
static void gst_rtpgsmparse_init (GstRtpGSMParse * rtpgsmparse); static GstBuffer *gst_rtpgsmparse_process (GstBaseRTPDepayload * depayload,
GstBuffer * buf);
static GstFlowReturn gst_rtpgsmparse_chain (GstPad * pad, GstBuffer * buffer); static gboolean gst_rtpgsmparse_setcaps (GstBaseRTPDepayload * payload,
GstCaps * caps);
static void gst_rtpgsmparse_set_property (GObject * object, guint prop_id, static void gst_rtpgsmparse_finalize (GObject * object);
const GValue * value, GParamSpec * pspec);
static void gst_rtpgsmparse_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstStateChangeReturn gst_rtpgsmparse_change_state (GstElement * element,
GstStateChange transition);
static GstElementClass *parent_class = NULL; static GstElementClass *parent_class = NULL;
static GType static GType
@ -82,26 +69,26 @@ gst_rtpgsmparse_get_type (void)
if (!rtpgsmparse_type) { if (!rtpgsmparse_type) {
static const GTypeInfo rtpgsmparse_info = { static const GTypeInfo rtpgsmparse_info = {
sizeof (GstRtpGSMParseClass), sizeof (GstRTPGSMParseClass),
(GBaseInitFunc) gst_rtpgsmparse_base_init, (GBaseInitFunc) gst_rtpgsmparse_base_init,
NULL, NULL,
(GClassInitFunc) gst_rtpgsmparse_class_init, (GClassInitFunc) gst_rtpgsmparse_class_init,
NULL, NULL,
NULL, NULL,
sizeof (GstRtpGSMParse), sizeof (GstRTPGSMParse),
0, 0,
(GInstanceInitFunc) gst_rtpgsmparse_init, (GInstanceInitFunc) gst_rtpgsmparse_init,
}; };
rtpgsmparse_type = rtpgsmparse_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstRtpGSMParse", g_type_register_static (GST_TYPE_BASE_RTP_DEPAYLOAD, "GstRTPGSMParse",
&rtpgsmparse_info, 0); &rtpgsmparse_info, 0);
} }
return rtpgsmparse_type; return rtpgsmparse_type;
} }
static void static void
gst_rtpgsmparse_base_init (GstRtpGSMParseClass * klass) gst_rtpgsmparse_base_init (GstRTPGSMParseClass * klass)
{ {
GstElementClass *element_class = GST_ELEMENT_CLASS (klass); GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
@ -113,172 +100,67 @@ gst_rtpgsmparse_base_init (GstRtpGSMParseClass * klass)
} }
static void static void
gst_rtpgsmparse_class_init (GstRtpGSMParseClass * klass) gst_rtpgsmparse_class_init (GstRTPGSMParseClass * klass)
{ {
GObjectClass *gobject_class; GObjectClass *gobject_class;
GstElementClass *gstelement_class; GstElementClass *gstelement_class;
GstBaseRTPDepayloadClass *gstbasertpdepayload_class;
gobject_class = (GObjectClass *) klass; gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass; gstelement_class = (GstElementClass *) klass;
gstbasertpdepayload_class = (GstBaseRTPDepayloadClass *) klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT); parent_class = g_type_class_ref (GST_TYPE_BASE_RTP_DEPAYLOAD);
gobject_class->set_property = gst_rtpgsmparse_set_property; gstbasertpdepayload_class->process = gst_rtpgsmparse_process;
gobject_class->get_property = gst_rtpgsmparse_get_property; gstbasertpdepayload_class->set_caps = gst_rtpgsmparse_setcaps;
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FREQUENCY, gobject_class->finalize = gst_rtpgsmparse_finalize;
g_param_spec_int ("frequency", "frequency", "frequency",
G_MININT, G_MAXINT, 8000, G_PARAM_READWRITE));
gstelement_class->change_state = gst_rtpgsmparse_change_state;
} }
static void static void
gst_rtpgsmparse_init (GstRtpGSMParse * rtpgsmparse) gst_rtpgsmparse_init (GstRTPGSMParse * rtpgsmparse)
{ {
rtpgsmparse->srcpad = GST_BASE_RTP_DEPAYLOAD (rtpgsmparse)->clock_rate = 8000;
gst_pad_new_from_template (gst_static_pad_template_get }
(&gst_rtpgsmparse_src_template), "src");
rtpgsmparse->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rtpgsmparse_sink_template), "sink");
gst_element_add_pad (GST_ELEMENT (rtpgsmparse), rtpgsmparse->srcpad);
gst_element_add_pad (GST_ELEMENT (rtpgsmparse), rtpgsmparse->sinkpad);
gst_pad_set_chain_function (rtpgsmparse->sinkpad, gst_rtpgsmparse_chain);
rtpgsmparse->frequency = 8000; static gboolean
gst_rtpgsmparse_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
{
GstRTPGSMParse *rtpgsmparse;
GstCaps *srccaps;
rtpgsmparse = GST_RTP_GSM_PARSE (depayload);
srccaps = gst_static_pad_template_get_caps (&gst_rtpgsmparse_src_template);
return gst_pad_set_caps (GST_BASE_RTP_DEPAYLOAD_SRCPAD (depayload), srccaps);
} }
static void static void
gst_rtpgsm_caps_nego (GstRtpGSMParse * rtpgsmparse) gst_rtpgsmparse_finalize (GObject * object)
{ {
GstCaps *caps; if (G_OBJECT_CLASS (parent_class)->finalize)
G_OBJECT_CLASS (parent_class)->finalize (object);
caps = gst_caps_new_simple ("audio/x-gsm",
"rate", G_TYPE_INT, rtpgsmparse->frequency, NULL);
gst_pad_set_caps (rtpgsmparse->srcpad, caps);
gst_caps_unref (caps);
} }
static GstFlowReturn static GstBuffer *
gst_rtpgsmparse_chain (GstPad * pad, GstBuffer * buf) gst_rtpgsmparse_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
{ {
GstRtpGSMParse *rtpgsmparse; GstBuffer *outbuf = NULL;
GstBuffer *outbuf;
GstFlowReturn ret;
guint8 pt;
rtpgsmparse = GST_RTP_GSM_PARSE (gst_pad_get_parent (pad));
if (GST_PAD_CAPS (rtpgsmparse->srcpad) == NULL) {
gst_rtpgsm_caps_nego (rtpgsmparse);
}
if (!gst_rtpbuffer_validate (buf))
goto bad_packet;
if ((pt = gst_rtpbuffer_get_payload_type (buf)) != GST_RTP_PAYLOAD_GSM)
goto bad_payload;
{
gint payload_len; gint payload_len;
guint8 *payload; guint8 *payload;
guint32 timestamp;
GST_DEBUG ("process : got %d bytes, mark %d ts %u seqn %d",
GST_BUFFER_SIZE (buf),
gst_rtpbuffer_get_marker (buf),
gst_rtpbuffer_get_timestamp (buf), gst_rtpbuffer_get_seq (buf));
payload_len = gst_rtpbuffer_get_payload_len (buf); payload_len = gst_rtpbuffer_get_payload_len (buf);
payload = gst_rtpbuffer_get_payload (buf); payload = gst_rtpbuffer_get_payload (buf);
timestamp = gst_rtpbuffer_get_timestamp (buf);
outbuf = gst_buffer_new_and_alloc (payload_len); outbuf = gst_buffer_new_and_alloc (payload_len);
GST_BUFFER_TIMESTAMP (outbuf) = timestamp * GST_SECOND / 8000;
memcpy (GST_BUFFER_DATA (outbuf), payload, payload_len); memcpy (GST_BUFFER_DATA (outbuf), payload, payload_len);
return outbuf;
GST_DEBUG ("pushing buffer of size %d", GST_BUFFER_SIZE (outbuf));
gst_buffer_unref (buf);
ret = gst_pad_push (rtpgsmparse->srcpad, outbuf);
}
return ret;
bad_packet:
{
GST_DEBUG ("Packet did not validate");
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
bad_payload:
{
GST_DEBUG ("Unexpected payload type %u", pt);
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
}
static void
gst_rtpgsmparse_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstRtpGSMParse *rtpgsmparse;
rtpgsmparse = GST_RTP_GSM_PARSE (object);
switch (prop_id) {
case ARG_FREQUENCY:
rtpgsmparse->frequency = g_value_get_int (value);
break;
default:
break;
}
}
static void
gst_rtpgsmparse_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstRtpGSMParse *rtpgsmparse;
rtpgsmparse = GST_RTP_GSM_PARSE (object);
switch (prop_id) {
case ARG_FREQUENCY:
g_value_set_int (value, rtpgsmparse->frequency);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstStateChangeReturn
gst_rtpgsmparse_change_state (GstElement * element, GstStateChange transition)
{
GstRtpGSMParse *rtpgsmparse;
GstStateChangeReturn ret;
rtpgsmparse = GST_RTP_GSM_PARSE (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
} }
gboolean gboolean

17
gst/rtp/gstrtpgsmparse.h
View file

@ -21,26 +21,27 @@
#define __GST_RTP_GSM_PARSE_H__ #define __GST_RTP_GSM_PARSE_H__
#include <gst/gst.h> #include <gst/gst.h>
#include <gst/rtp/gstbasertpdepayload.h>
G_BEGIN_DECLS G_BEGIN_DECLS
typedef struct _GstRtpGSMParse GstRtpGSMParse; typedef struct _GstRTPGSMParse GstRTPGSMParse;
typedef struct _GstRtpGSMParseClass GstRtpGSMParseClass; typedef struct _GstRTPGSMParseClass GstRTPGSMParseClass;
#define GST_TYPE_RTP_GSM_PARSE \ #define GST_TYPE_RTP_GSM_PARSE \
(gst_rtpgsmparse_get_type()) (gst_rtpgsmparse_get_type())
#define GST_RTP_GSM_PARSE(obj) \ #define GST_RTP_GSM_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_GSM_PARSE,GstRtpGSMParse)) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_GSM_PARSE,GstRTPGSMParse))
#define GST_RTP_GSM_PARSE_CLASS(klass) \ #define GST_RTP_GSM_PARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_GSM_PARSE,GstRtpGSMParse)) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_GSM_PARSE,GstRTPGSMParse))
#define GST_IS_RTP_GSM_PARSE(obj) \ #define GST_IS_RTP_GSM_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_GSM_PARSE)) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_GSM_PARSE))
#define GST_IS_RTP_GSM_PARSE_CLASS(obj) \ #define GST_IS_RTP_GSM_PARSE_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_GSM_PARSE)) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_GSM_PARSE))
struct _GstRtpGSMParse struct _GstRTPGSMParse
{ {
GstElement element; GstBaseRTPDepayload depayload;
GstPad *sinkpad; GstPad *sinkpad;
GstPad *srcpad; GstPad *srcpad;
@ -48,9 +49,9 @@ struct _GstRtpGSMParse
guint frequency; guint frequency;
}; };
struct _GstRtpGSMParseClass struct _GstRTPGSMParseClass
{ {
GstElementClass parent_class; GstBaseRTPDepayloadClass parent_class;
}; };
gboolean gst_rtpgsmparse_plugin_init (GstPlugin * plugin); gboolean gst_rtpgsmparse_plugin_init (GstPlugin * plugin);

33
gst/rtp/gstrtpgsmpay.c
View file

@ -39,7 +39,7 @@ static GstStaticPadTemplate gst_rtpgsmenc_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink", GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK, GST_PAD_SINK,
GST_PAD_ALWAYS, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-gsm, " "rate = (int) [ 1000, 48000 ]") GST_STATIC_CAPS ("audio/x-gsm, " "rate = (int) 8000, " "channels = (int) 1")
); );
static GstStaticPadTemplate gst_rtpgsmenc_src_template = static GstStaticPadTemplate gst_rtpgsmenc_src_template =
@ -53,9 +53,9 @@ GST_STATIC_PAD_TEMPLATE ("src",
); );
static void gst_rtpgsmenc_class_init (GstRtpGSMEncClass * klass); static void gst_rtpgsmenc_class_init (GstRTPGSMEncClass * klass);
static void gst_rtpgsmenc_base_init (GstRtpGSMEncClass * klass); static void gst_rtpgsmenc_base_init (GstRTPGSMEncClass * klass);
static void gst_rtpgsmenc_init (GstRtpGSMEnc * rtpgsmenc); static void gst_rtpgsmenc_init (GstRTPGSMEnc * rtpgsmenc);
static gboolean gst_rtpgsmenc_setcaps (GstBaseRTPPayload * payload, static gboolean gst_rtpgsmenc_setcaps (GstBaseRTPPayload * payload,
GstCaps * caps); GstCaps * caps);
@ -71,26 +71,26 @@ gst_rtpgsmenc_get_type (void)
if (!rtpgsmenc_type) { if (!rtpgsmenc_type) {
static const GTypeInfo rtpgsmenc_info = { static const GTypeInfo rtpgsmenc_info = {
sizeof (GstRtpGSMEncClass), sizeof (GstRTPGSMEncClass),
(GBaseInitFunc) gst_rtpgsmenc_base_init, (GBaseInitFunc) gst_rtpgsmenc_base_init,
NULL, NULL,
(GClassInitFunc) gst_rtpgsmenc_class_init, (GClassInitFunc) gst_rtpgsmenc_class_init,
NULL, NULL,
NULL, NULL,
sizeof (GstRtpGSMEnc), sizeof (GstRTPGSMEnc),
0, 0,
(GInstanceInitFunc) gst_rtpgsmenc_init, (GInstanceInitFunc) gst_rtpgsmenc_init,
}; };
rtpgsmenc_type = rtpgsmenc_type =
g_type_register_static (GST_TYPE_BASE_RTP_PAYLOAD, "GstRtpGSMEnc", g_type_register_static (GST_TYPE_BASE_RTP_PAYLOAD, "GstRTPGSMEnc",
&rtpgsmenc_info, 0); &rtpgsmenc_info, 0);
} }
return rtpgsmenc_type; return rtpgsmenc_type;
} }
static void static void
gst_rtpgsmenc_base_init (GstRtpGSMEncClass * klass) gst_rtpgsmenc_base_init (GstRTPGSMEncClass * klass)
{ {
GstElementClass *element_class = GST_ELEMENT_CLASS (klass); GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
@ -102,7 +102,7 @@ gst_rtpgsmenc_base_init (GstRtpGSMEncClass * klass)
} }
static void static void
gst_rtpgsmenc_class_init (GstRtpGSMEncClass * klass) gst_rtpgsmenc_class_init (GstRTPGSMEncClass * klass)
{ {
GObjectClass *gobject_class; GObjectClass *gobject_class;
GstElementClass *gstelement_class; GstElementClass *gstelement_class;
@ -119,15 +119,16 @@ gst_rtpgsmenc_class_init (GstRtpGSMEncClass * klass)
} }
static void static void
gst_rtpgsmenc_init (GstRtpGSMEnc * rtpgsmenc) gst_rtpgsmenc_init (GstRTPGSMEnc * rtpgsmenc)
{ {
rtpgsmenc->frequency = 8000; GST_BASE_RTP_PAYLOAD (rtpgsmenc)->clock_rate = 8000;
GST_BASE_RTP_PAYLOAD_PT (rtpgsmenc) = GST_RTP_PAYLOAD_GSM;
} }
static gboolean static gboolean
gst_rtpgsmenc_setcaps (GstBaseRTPPayload * payload, GstCaps * caps) gst_rtpgsmenc_setcaps (GstBaseRTPPayload * payload, GstCaps * caps)
{ {
GstRtpGSMEnc *rtpgsmenc; GstRTPGSMEnc *rtpgsmenc;
GstStructure *structure; GstStructure *structure;
gboolean ret; gboolean ret;
GstCaps *srccaps; GstCaps *srccaps;
@ -136,7 +137,9 @@ gst_rtpgsmenc_setcaps (GstBaseRTPPayload * payload, GstCaps * caps)
structure = gst_caps_get_structure (caps, 0); structure = gst_caps_get_structure (caps, 0);
ret = gst_structure_get_int (structure, "rate", &rtpgsmenc->frequency); ret =
gst_structure_get_int (structure, "rate",
&(GST_BASE_RTP_PAYLOAD (rtpgsmenc)->clock_rate));
if (!ret) if (!ret)
return FALSE; return FALSE;
@ -151,7 +154,7 @@ static GstFlowReturn
gst_rtpgsmenc_handle_buffer (GstBaseRTPPayload * basepayload, gst_rtpgsmenc_handle_buffer (GstBaseRTPPayload * basepayload,
GstBuffer * buffer) GstBuffer * buffer)
{ {
GstRtpGSMEnc *rtpgsmenc; GstRTPGSMEnc *rtpgsmenc;
guint size, payload_len; guint size, payload_len;
GstBuffer *outbuf; GstBuffer *outbuf;
guint8 *payload, *data; guint8 *payload, *data;
@ -170,8 +173,6 @@ gst_rtpgsmenc_handle_buffer (GstBaseRTPPayload * basepayload,
/* FIXME, assert for now */ /* FIXME, assert for now */
g_assert (GST_BUFFER_SIZE (outbuf) < GST_BASE_RTP_PAYLOAD_MTU (rtpgsmenc)); g_assert (GST_BUFFER_SIZE (outbuf) < GST_BASE_RTP_PAYLOAD_MTU (rtpgsmenc));
gst_rtpbuffer_set_timestamp (outbuf, timestamp * 8000 / GST_SECOND);
/* copy timestamp */ /* copy timestamp */
GST_BUFFER_TIMESTAMP (outbuf) = timestamp; GST_BUFFER_TIMESTAMP (outbuf) = timestamp;

14
gst/rtp/gstrtpgsmpay.h
View file

@ -26,28 +26,26 @@
G_BEGIN_DECLS G_BEGIN_DECLS
typedef struct _GstRtpGSMEnc GstRtpGSMEnc; typedef struct _GstRTPGSMEnc GstRTPGSMEnc;
typedef struct _GstRtpGSMEncClass GstRtpGSMEncClass; typedef struct _GstRTPGSMEncClass GstRTPGSMEncClass;
#define GST_TYPE_RTP_GSM_ENC \ #define GST_TYPE_RTP_GSM_ENC \
(gst_rtpgsmenc_get_type()) (gst_rtpgsmenc_get_type())
#define GST_RTP_GSM_ENC(obj) \ #define GST_RTP_GSM_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_GSM_ENC,GstRtpGSMEnc)) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_GSM_ENC,GstRTPGSMEnc))
#define GST_RTP_GSM_ENC_CLASS(klass) \ #define GST_RTP_GSM_ENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_GSM_ENC,GstRtpGSMEnc)) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_GSM_ENC,GstRTPGSMEnc))
#define GST_IS_RTP_GSM_ENC(obj) \ #define GST_IS_RTP_GSM_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_GSM_ENC)) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_GSM_ENC))
#define GST_IS_RTP_GSM_ENC_CLASS(obj) \ #define GST_IS_RTP_GSM_ENC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_GSM_ENC)) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_GSM_ENC))
struct _GstRtpGSMEnc struct _GstRTPGSMEnc
{ {
GstBaseRTPPayload payload; GstBaseRTPPayload payload;
gint frequency;
}; };
struct _GstRtpGSMEncClass struct _GstRTPGSMEncClass
{ {
GstBaseRTPPayloadClass parent_class; GstBaseRTPPayloadClass parent_class;
}; };