static void
gst_artsdsink_init (GstArtsdsink * artsdsink)
{
artsdsink->sinkpad =
gst_pad_new_from_template (gst_element_get_pad_template (GST_ELEMENT
(artsdsink), "sink"), "sink");
gst_element_add_pad (GST_ELEMENT (artsdsink), artsdsink->sinkpad);
gst_pad_set_chain_function (artsdsink->sinkpad, gst_artsdsink_chain);
gst_pad_set_link_function (artsdsink->sinkpad, gst_artsdsink_link);
artsdsink->connected = FALSE;
artsdsink->mute = FALSE;
artsdsink->connect_name = NULL;
}
static void
instance_init(GTypeInstance *instance, void *g_class)
{
struct obj *self = (struct obj *)instance;
GstElementClass *element_class = g_class;
self->sinkpad =
gst_pad_new_from_template(gst_element_class_get_pad_template(element_class, "sink"), "sink");
gst_pad_set_chain_function(self->sinkpad, pad_chain);
gst_pad_set_event_function(self->sinkpad, sink_event);
self->srcpad =
gst_pad_new_from_template(gst_element_class_get_pad_template(element_class, "src"), "src");
gst_pad_use_fixed_caps(self->srcpad);
gst_element_add_pad((GstElement *)self, self->sinkpad);
gst_element_add_pad((GstElement *)self, self->srcpad);
gst_pad_set_setcaps_function(self->sinkpad, sink_setcaps);
g_mutex_init(&self->mutex);
}
static void
gst_xine_audio_sink_sub_init (GTypeInstance * instance, gpointer g_class)
{
GstElementClass *klass = GST_ELEMENT_GET_CLASS (instance);
GstXineAudioSink *xine = GST_XINE_AUDIO_SINK (instance);
xine->sinkpad =
gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
"sink"), "sink");
gst_pad_set_chain_function (xine->sinkpad, gst_xine_audio_sink_chain);
gst_pad_set_getcaps_function (xine->sinkpad, _xine_audio_sink_get_caps);
gst_pad_set_link_function (xine->sinkpad, _xine_audio_sink_link);
gst_element_add_pad (GST_ELEMENT (xine), xine->sinkpad);
}
/* Create a pad for receiving RTCP for the session in @name
*/
static GstPad *
create_recv_rtcp (GstRTPDec * rtpdec, GstPadTemplate * templ,
const gchar * name)
{
guint sessid;
GstRTPDecSession *session;
/* first get the session number */
if (name == NULL || sscanf (name, "recv_rtcp_sink_%u", &sessid) != 1)
goto no_name;
GST_DEBUG_OBJECT (rtpdec, "finding session %d", sessid);
/* get the session, it must exist or we error */
session = find_session_by_id (rtpdec, sessid);
if (!session)
goto no_session;
/* check if pad was requested */
if (session->recv_rtcp_sink != NULL)
goto existed;
GST_DEBUG_OBJECT (rtpdec, "getting RTCP sink pad");
session->recv_rtcp_sink = gst_pad_new_from_template (templ, name);
gst_pad_set_element_private (session->recv_rtp_sink, session);
gst_pad_set_chain_function (session->recv_rtcp_sink, gst_rtp_dec_chain_rtcp);
gst_pad_set_active (session->recv_rtcp_sink, TRUE);
gst_element_add_pad (GST_ELEMENT_CAST (rtpdec), session->recv_rtcp_sink);
return session->recv_rtcp_sink;
/* ERRORS */
no_name:
{
g_warning ("rtpdec: invalid name given");
return NULL;
}
no_session:
{
g_warning ("rtpdec: no session with id %d", sessid);
return NULL;
}
existed:
{
g_warning ("rtpdec: recv_rtcp pad already requested for session %d",
sessid);
return NULL;
}
}
static GstPad *
gst_mxf_mux_request_new_pad (GstElement * element,
GstPadTemplate * templ, const gchar * pad_name)
{
GstMXFMux *mux = GST_MXF_MUX (element);
GstMXFMuxPad *cpad;
GstPad *pad = NULL;
guint pad_number;
gchar *name = NULL;
const MXFEssenceElementWriter *writer;
if (mux->state != GST_MXF_MUX_STATE_HEADER) {
GST_WARNING_OBJECT (mux, "Can't request pads after writing header");
return NULL;
}
writer = mxf_essence_element_writer_find (templ);
if (!writer) {
GST_ERROR_OBJECT (mux, "Not our template");
return NULL;
}
pad_number = g_atomic_int_exchange_and_add ((gint *) & mux->n_pads, 1);
name = gst_mxf_mux_create_pad_name (templ, pad_number);
GST_DEBUG_OBJECT (mux, "Creating pad '%s'", name);
pad = gst_pad_new_from_template (templ, name);
g_free (name);
cpad = (GstMXFMuxPad *)
gst_collect_pads_add_pad (mux->collect, pad, sizeof (GstMXFMuxPad));
cpad->last_timestamp = 0;
cpad->adapter = gst_adapter_new ();
cpad->writer = writer;
/* FIXME: hacked way to override/extend the event function of
* GstCollectPads; because it sets its own event function giving the
* element no access to events.
*/
mux->collect_event = (GstPadEventFunction) GST_PAD_EVENTFUNC (pad);
gst_pad_set_event_function (pad,
GST_DEBUG_FUNCPTR (gst_mxf_mux_handle_sink_event));
gst_pad_set_setcaps_function (pad, gst_mxf_mux_setcaps);
gst_pad_use_fixed_caps (pad);
gst_pad_set_active (pad, TRUE);
gst_element_add_pad (element, pad);
return pad;
}
static void
gst_vorbis_enc_init (GstVorbisEnc * vorbisenc, GstVorbisEncClass * klass)
{
vorbisenc->sinkpad =
gst_pad_new_from_template (gst_vorbis_enc_sink_template, "sink");
gst_pad_set_event_function (vorbisenc->sinkpad,
GST_DEBUG_FUNCPTR (gst_vorbis_enc_sink_event));
gst_pad_set_chain_function (vorbisenc->sinkpad,
GST_DEBUG_FUNCPTR (gst_vorbis_enc_chain));
gst_pad_set_setcaps_function (vorbisenc->sinkpad,
GST_DEBUG_FUNCPTR (gst_vorbis_enc_sink_setcaps));
gst_pad_set_getcaps_function (vorbisenc->sinkpad,
GST_DEBUG_FUNCPTR (gst_vorbis_enc_sink_getcaps));
gst_pad_set_query_function (vorbisenc->sinkpad,
GST_DEBUG_FUNCPTR (gst_vorbis_enc_sink_query));
gst_element_add_pad (GST_ELEMENT (vorbisenc), vorbisenc->sinkpad);
vorbisenc->srcpad =
gst_pad_new_from_template (gst_vorbis_enc_src_template, "src");
gst_pad_set_query_function (vorbisenc->srcpad,
GST_DEBUG_FUNCPTR (gst_vorbis_enc_src_query));
gst_pad_set_query_type_function (vorbisenc->srcpad,
GST_DEBUG_FUNCPTR (gst_vorbis_enc_get_query_types));
gst_element_add_pad (GST_ELEMENT (vorbisenc), vorbisenc->srcpad);
vorbisenc->channels = -1;
vorbisenc->frequency = -1;
vorbisenc->managed = FALSE;
vorbisenc->max_bitrate = MAX_BITRATE_DEFAULT;
vorbisenc->bitrate = BITRATE_DEFAULT;
vorbisenc->min_bitrate = MIN_BITRATE_DEFAULT;
vorbisenc->quality = QUALITY_DEFAULT;
vorbisenc->quality_set = FALSE;
vorbisenc->last_message = NULL;
}
static void
gst_rtp_pt_demux_init (GstRtpPtDemux * ptdemux, GstRtpPtDemuxClass * g_class)
{
GstElementClass *klass = GST_ELEMENT_GET_CLASS (ptdemux);
ptdemux->sink =
gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
"sink"), "sink");
g_assert (ptdemux->sink != NULL);
gst_pad_set_chain_function (ptdemux->sink, gst_rtp_pt_demux_chain);
gst_pad_set_event_function (ptdemux->sink, gst_rtp_pt_demux_sink_event);
gst_element_add_pad (GST_ELEMENT (ptdemux), ptdemux->sink);
}
static void
gst_vtenc_init (GstVTEnc * self)
{
GstVTEncClass *klass = (GstVTEncClass *) G_OBJECT_GET_CLASS (self);
GstElementClass *element_klass = GST_ELEMENT_CLASS (klass);
GstElement *element = GST_ELEMENT (self);
self->details = GST_VTENC_CLASS_GET_CODEC_DETAILS (klass);
self->sinkpad = gst_pad_new_from_template
(gst_element_class_get_pad_template (element_klass, "sink"), "sink");
gst_element_add_pad (element, self->sinkpad);
gst_pad_set_setcaps_function (self->sinkpad, gst_vtenc_sink_setcaps);
gst_pad_set_chain_function (self->sinkpad, gst_vtenc_chain);
self->srcpad = gst_pad_new_from_template
(gst_element_class_get_pad_template (element_klass, "src"), "src");
gst_pad_set_event_function (self->srcpad, gst_vtenc_src_event);
gst_element_add_pad (element, self->srcpad);
/* These could be controlled by properties later */
self->dump_properties = FALSE;
self->dump_attributes = FALSE;
}
/**
* hls_progress_buffer_init()
*
* Initializer. Automatically declared in the GST_BOILERPLATE macro above. Should be
* only called by GStreamer.
*/
static void hls_progress_buffer_init(HLSProgressBuffer *element, HLSProgressBufferClass *element_klass)
{
GstElementClass *klass = GST_ELEMENT_CLASS (element_klass);
int i = 0;
element->sinkpad = gst_pad_new_from_template (gst_element_class_get_pad_template (klass, "sink"), "sink");
gst_pad_set_chain_function(element->sinkpad, hls_progress_buffer_chain);
gst_pad_set_event_function(element->sinkpad, hls_progress_buffer_sink_event);
gst_element_add_pad (GST_ELEMENT (element), element->sinkpad);
element->srcpad = gst_pad_new_from_template (gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS(element), "src"), "src");
gst_pad_set_activatepush_function(element->srcpad, hls_progress_buffer_activatepush_src);
gst_pad_set_event_function(element->srcpad, hls_progress_buffer_src_event);
gst_element_add_pad (GST_ELEMENT (element), element->srcpad);
element->lock = g_mutex_new();
element->add_cond = g_cond_new();
element->del_cond = g_cond_new();
for (i = 0; i < NUM_OF_CACHED_SEGMENTS; i++)
{
element->cache[i] = create_cache();
element->cache_size[i] = 0;
element->cache_write_ready[i] = TRUE;
}
element->cache_write_index = -1;
element->cache_read_index = 0;
element->send_new_segment = TRUE;
element->is_flushing = FALSE;
element->is_eos = FALSE;
element->srcresult = GST_FLOW_OK;
}
static GstPad *
gst_multipart_mux_request_new_pad (GstElement * element,
GstPadTemplate * templ, const gchar * req_name)
{
GstMultipartMux *multipart_mux;
GstPad *newpad;
GstElementClass *klass = GST_ELEMENT_GET_CLASS (element);
gchar *name;
if (templ != gst_element_class_get_pad_template (klass, "sink_%d"))
goto wrong_template;
multipart_mux = GST_MULTIPART_MUX (element);
/* create new pad with the name */
name = g_strdup_printf ("sink_%02d", multipart_mux->numpads);
newpad = gst_pad_new_from_template (templ, name);
g_free (name);
/* construct our own wrapper data structure for the pad to
* keep track of its status */
{
GstMultipartPadData *multipartpad;
multipartpad = (GstMultipartPadData *)
gst_collect_pads_add_pad (multipart_mux->collect, newpad,
sizeof (GstMultipartPadData));
/* save a pointer to our data in the pad */
gst_pad_set_element_private (newpad, multipartpad);
multipart_mux->numpads++;
}
/* add the pad to the element */
gst_element_add_pad (element, newpad);
return newpad;
/* ERRORS */
wrong_template:
{
g_warning ("multipart_mux: this is not our template!");
return NULL;
}
}
static void
gst_icydemux_init (GstICYDemux * icydemux)
{
GstElementClass *klass = GST_ELEMENT_GET_CLASS (icydemux);
icydemux->sinkpad =
gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
"sink"), "sink");
gst_pad_set_chain_function (icydemux->sinkpad,
GST_DEBUG_FUNCPTR (gst_icydemux_chain));
gst_pad_set_event_function (icydemux->sinkpad,
GST_DEBUG_FUNCPTR (gst_icydemux_handle_event));
gst_pad_set_setcaps_function (icydemux->sinkpad,
GST_DEBUG_FUNCPTR (gst_icydemux_sink_setcaps));
gst_element_add_pad (GST_ELEMENT (icydemux), icydemux->sinkpad);
gst_icydemux_reset (icydemux);
}
/**
* progress_buffer_create_sourcepad()
*
*/
static void progress_buffer_create_sourcepad(ProgressBuffer *element)
{
element->srcpad = gst_pad_new_from_template (gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS(element), "src"), "src");
gst_pad_set_activatemode_function (element->srcpad, GST_DEBUG_FUNCPTR(progress_buffer_activatemode));
gst_pad_set_event_function (element->srcpad, GST_DEBUG_FUNCPTR(progress_buffer_src_event));
gst_pad_set_getrange_function (element->srcpad, GST_DEBUG_FUNCPTR(progress_buffer_getrange));
GST_PAD_UNSET_FLUSHING(element->srcpad);
// Add pad
gst_element_add_pad (GST_ELEMENT (element), element->srcpad);
// Activate pad
gst_pad_set_active (element->srcpad, TRUE);
// Send "no-more-pads"
gst_element_no_more_pads(GST_ELEMENT (element));
}
/* Create a pad for sending RTCP for the session in @name
*/
static GstPad *
create_rtcp (GstRDTManager * rdtmanager, GstPadTemplate * templ,
const gchar * name)
{
guint sessid;
GstRDTManagerSession *session;
/* first get the session number */
if (name == NULL || sscanf (name, "rtcp_src_%u", &sessid) != 1)
goto no_name;
/* get or create session */
session = find_session_by_id (rdtmanager, sessid);
if (!session)
goto no_session;
/* check if pad was requested */
if (session->rtcp_src != NULL)
goto existed;
session->rtcp_src = gst_pad_new_from_template (templ, name);
gst_pad_set_active (session->rtcp_src, TRUE);
gst_element_add_pad (GST_ELEMENT_CAST (rdtmanager), session->rtcp_src);
return session->rtcp_src;
/* ERRORS */
no_name:
{
g_warning ("rdtmanager: invalid name given");
return NULL;
}
no_session:
{
g_warning ("rdtmanager: session with id %d does not exist", sessid);
return NULL;
}
existed:
{
g_warning ("rdtmanager: rtcp_src pad already requested for session %d",
sessid);
return NULL;
}
}
static void
gst_raw_parse_init (GstRawParse * rp, GstRawParseClass * g_class)
{
GstPadTemplate *src_pad_template;
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
rp->sinkpad =
gst_pad_new_from_static_template (&gst_raw_parse_sink_pad_template,
"sink");
gst_pad_set_chain_function (rp->sinkpad,
GST_DEBUG_FUNCPTR (gst_raw_parse_chain));
gst_pad_set_event_function (rp->sinkpad,
GST_DEBUG_FUNCPTR (gst_raw_parse_sink_event));
gst_pad_set_activate_function (rp->sinkpad,
GST_DEBUG_FUNCPTR (gst_raw_parse_sink_activate));
gst_pad_set_activatepull_function (rp->sinkpad,
GST_DEBUG_FUNCPTR (gst_raw_parse_sink_activatepull));
gst_element_add_pad (GST_ELEMENT (rp), rp->sinkpad);
src_pad_template = gst_element_class_get_pad_template (element_class, "src");
if (src_pad_template) {
rp->srcpad = gst_pad_new_from_template (src_pad_template, "src");
} else {
g_warning ("Subclass didn't specify a src pad template");
g_assert_not_reached ();
}
gst_pad_set_event_function (rp->srcpad,
GST_DEBUG_FUNCPTR (gst_raw_parse_src_event));
gst_pad_set_query_type_function (rp->srcpad,
GST_DEBUG_FUNCPTR (gst_raw_parse_src_query_type));
gst_pad_set_query_function (rp->srcpad,
GST_DEBUG_FUNCPTR (gst_raw_parse_src_query));
gst_element_add_pad (GST_ELEMENT (rp), rp->srcpad);
rp->adapter = gst_adapter_new ();
rp->fps_n = 1;
rp->fps_d = 0;
rp->framesize = 1;
gst_raw_parse_reset (rp);
}
static void
gst_multipart_mux_init (GstMultipartMux * multipart_mux)
{
GstElementClass *klass = GST_ELEMENT_GET_CLASS (multipart_mux);
multipart_mux->srcpad =
gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
"src"), "src");
gst_pad_set_event_function (multipart_mux->srcpad,
gst_multipart_mux_handle_src_event);
gst_element_add_pad (GST_ELEMENT (multipart_mux), multipart_mux->srcpad);
multipart_mux->boundary = g_strdup (DEFAULT_BOUNDARY);
multipart_mux->collect = gst_collect_pads_new ();
gst_collect_pads_set_function (multipart_mux->collect,
(GstCollectPadsFunction) GST_DEBUG_FUNCPTR (gst_multipart_mux_collected),
multipart_mux);
}
static void
gst_rtp_mux_init (GstRTPMux * rtp_mux)
{
GstElementClass *klass = GST_ELEMENT_GET_CLASS (rtp_mux);
rtp_mux->srcpad =
gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
"src"), "src");
gst_pad_set_event_function (rtp_mux->srcpad,
GST_DEBUG_FUNCPTR (gst_rtp_mux_src_event));
gst_pad_use_fixed_caps (rtp_mux->srcpad);
gst_element_add_pad (GST_ELEMENT (rtp_mux), rtp_mux->srcpad);
rtp_mux->ssrc = DEFAULT_SSRC;
rtp_mux->ts_offset = DEFAULT_TIMESTAMP_OFFSET;
rtp_mux->seqnum_offset = DEFAULT_SEQNUM_OFFSET;
rtp_mux->last_stop = GST_CLOCK_TIME_NONE;
}
static void
gst_aggregator_init (GstAggregator * self, GstAggregatorClass * klass)
{
GstPadTemplate *pad_template;
GstAggregatorPrivate *priv;
g_return_if_fail (klass->aggregate != NULL);
self->priv =
G_TYPE_INSTANCE_GET_PRIVATE (self, GST_TYPE_AGGREGATOR,
GstAggregatorPrivate);
priv = self->priv;
pad_template =
gst_element_class_get_pad_template (GST_ELEMENT_CLASS (klass), "src");
g_return_if_fail (pad_template != NULL);
priv->padcount = -1;
priv->tags_changed = FALSE;
self->priv->latency_live = FALSE;
self->priv->latency_min = 0;
self->priv->latency_max = GST_CLOCK_TIME_NONE;
_reset_flow_values (self);
AGGREGATOR_QUEUE (self) = g_async_queue_new ();
self->srcpad = gst_pad_new_from_template (pad_template, "src");
gst_pad_set_event_function (self->srcpad,
GST_DEBUG_FUNCPTR ((GstPadEventFunction) src_event_func));
gst_pad_set_query_function (self->srcpad,
GST_DEBUG_FUNCPTR ((GstPadQueryFunction) src_query_func));
gst_pad_set_activatemode_function (self->srcpad,
GST_DEBUG_FUNCPTR ((GstPadActivateModeFunction) src_activate_mode));
gst_element_add_pad (GST_ELEMENT (self), self->srcpad);
self->clock = gst_system_clock_obtain ();
self->timeout = -1;
g_mutex_init (&self->priv->setcaps_lock);
}
static void
mpegpsmux_init (MpegPsMux * mux, MpegPsMuxClass * g_class)
{
mux->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&mpegpsmux_src_factory), "src");
gst_pad_use_fixed_caps (mux->srcpad);
gst_element_add_pad (GST_ELEMENT (mux), mux->srcpad);
mux->collect = gst_collect_pads_new ();
gst_collect_pads_set_function (mux->collect,
(GstCollectPadsFunction) GST_DEBUG_FUNCPTR (mpegpsmux_collected), mux);
mux->psmux = psmux_new ();
psmux_set_write_func (mux->psmux, new_packet_cb, mux);
mux->first = TRUE;
mux->last_flow_ret = GST_FLOW_OK;
mux->last_ts = 0; /* XXX: or -1? */
}
static GstPad *
gst_mpeg_demux_new_output_pad (GstMPEGDemux * mpeg_demux,
const gchar * name, GstPadTemplate * temp)
{
GstPad *pad;
pad = gst_pad_new_from_template (temp, name);
#if 0
gst_pad_set_event_function (pad,
GST_DEBUG_FUNCPTR (gst_mpeg_demux_handle_src_event));
#endif
gst_pad_set_query_type_function (pad,
GST_DEBUG_FUNCPTR (gst_mpeg_parse_get_src_query_types));
gst_pad_set_query_function (pad,
GST_DEBUG_FUNCPTR (gst_mpeg_parse_handle_src_query));
gst_pad_use_fixed_caps (pad);
return pad;
}
static void
gst_vdp_vpp_init (GstVdpVideoPostProcess * vpp,
GstVdpVideoPostProcessClass * gclass)
{
GstPadTemplate *src_template, *sink_template;
vpp->device = NULL;
vpp->mixer = VDP_INVALID_HANDLE;
vpp->display = NULL;
vpp->force_aspect_ratio = FALSE;
vpp->mode = GST_VDP_DEINTERLACE_MODE_AUTO;
vpp->method = GST_VDP_DEINTERLACE_METHOD_BOB;
vpp->noise_reduction = 0.0;
vpp->sharpening = 0.0;
/* SRC PAD */
src_template =
gst_element_class_get_pad_template (GST_ELEMENT_CLASS (gclass), "src");
vpp->srcpad = GST_PAD (gst_vdp_output_src_pad_new (src_template, "src"));
gst_element_add_pad (GST_ELEMENT (vpp), vpp->srcpad);
gst_pad_set_event_function (vpp->srcpad,
GST_DEBUG_FUNCPTR (gst_vdp_vpp_src_event));
/* SINK PAD */
sink_template =
gst_element_class_get_pad_template (GST_ELEMENT_CLASS (gclass), "sink");
vpp->sinkpad = gst_pad_new_from_template (sink_template, "sink");
gst_element_add_pad (GST_ELEMENT (vpp), vpp->sinkpad);
gst_pad_set_getcaps_function (vpp->sinkpad, gst_vdp_vpp_sink_getcaps);
gst_pad_set_setcaps_function (vpp->sinkpad, gst_vdp_vpp_sink_setcaps);
gst_pad_set_chain_function (vpp->sinkpad,
GST_DEBUG_FUNCPTR (gst_vdp_vpp_chain));
gst_pad_set_event_function (vpp->sinkpad,
GST_DEBUG_FUNCPTR (gst_vdp_vpp_sink_event));
}
static void
qtwrapper_audio_decoder_init (QTWrapperAudioDecoder * qtwrapper)
{
QTWrapperAudioDecoderClass *oclass;
oclass = (QTWrapperAudioDecoderClass *) (G_OBJECT_GET_CLASS (qtwrapper));
/* Sink pad */
qtwrapper->sinkpad = gst_pad_new_from_template (oclass->sinktempl, "sink");
gst_pad_set_setcaps_function (qtwrapper->sinkpad,
GST_DEBUG_FUNCPTR (qtwrapper_audio_decoder_sink_setcaps));
gst_pad_set_chain_function (qtwrapper->sinkpad,
GST_DEBUG_FUNCPTR (qtwrapper_audio_decoder_chain));
gst_pad_set_event_function (qtwrapper->sinkpad,
GST_DEBUG_FUNCPTR (qtwrapper_audio_decoder_sink_event));
gst_element_add_pad (GST_ELEMENT (qtwrapper), qtwrapper->sinkpad);
/* Source pad */
qtwrapper->srcpad = gst_pad_new_from_static_template (&src_templ, "src");
gst_element_add_pad (GST_ELEMENT (qtwrapper), qtwrapper->srcpad);
}
/**
* progress_buffer_init()
*
* Initializer. Automatically declared in the G_DEFINE_TYPE macro above. Should be
* only called by GStreamer.
*/
static void progress_buffer_init(ProgressBuffer *element)
{
element->sinkpad = gst_pad_new_from_template (gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS(element), "sink"), "sink");
gst_pad_set_chain_function (element->sinkpad, GST_DEBUG_FUNCPTR(progress_buffer_chain));
gst_pad_set_event_function (element->sinkpad, GST_DEBUG_FUNCPTR(progress_buffer_sink_event));
gst_element_add_pad (GST_ELEMENT (element), element->sinkpad);
element->srcpad = NULL;
element->cache = NULL;
element->cache_read_offset = 0;
g_mutex_init(&element->lock);
g_cond_init(&element->add_cond);
element->bandwidth_timer = g_timer_new();
element->is_source_seeking = FALSE;
#if ENABLE_PULL_MODE
element->monitor_thread = NULL;
#endif
progress_buffer_flush_data(element);
}
static GstPad *
gst_mxf_mux_request_new_pad (GstElement * element,
GstPadTemplate * templ, const gchar * pad_name, const GstCaps * caps)
{
GstMXFMux *mux = GST_MXF_MUX (element);
GstMXFMuxPad *cpad;
GstPad *pad = NULL;
guint pad_number;
gchar *name = NULL;
const MXFEssenceElementWriter *writer;
if (mux->state != GST_MXF_MUX_STATE_HEADER) {
GST_WARNING_OBJECT (mux, "Can't request pads after writing header");
return NULL;
}
writer = mxf_essence_element_writer_find (templ);
if (!writer) {
GST_ERROR_OBJECT (mux, "Not our template");
return NULL;
}
pad_number = g_atomic_int_add ((gint *) & mux->n_pads, 1);
name = gst_mxf_mux_create_pad_name (templ, pad_number);
GST_DEBUG_OBJECT (mux, "Creating pad '%s'", name);
pad = gst_pad_new_from_template (templ, name);
g_free (name);
cpad = (GstMXFMuxPad *)
gst_collect_pads_add_pad (mux->collect, pad, sizeof (GstMXFMuxPad), NULL,
TRUE);
cpad->last_timestamp = 0;
cpad->adapter = gst_adapter_new ();
cpad->writer = writer;
gst_pad_use_fixed_caps (pad);
gst_pad_set_active (pad, TRUE);
gst_element_add_pad (element, pad);
return pad;
}
static gboolean
gst_icydemux_add_srcpad (GstICYDemux * icydemux, GstCaps * new_caps)
{
if (icydemux->src_caps == NULL ||
!gst_caps_is_equal (new_caps, icydemux->src_caps)) {
gst_caps_replace (&(icydemux->src_caps), new_caps);
if (icydemux->srcpad != NULL) {
GST_DEBUG_OBJECT (icydemux, "Changing src pad caps to %" GST_PTR_FORMAT,
icydemux->src_caps);
gst_pad_set_caps (icydemux->srcpad, icydemux->src_caps);
}
} else {
/* Caps never changed */
gst_caps_unref (new_caps);
}
if (icydemux->srcpad == NULL) {
icydemux->srcpad =
gst_pad_new_from_template (gst_element_class_get_pad_template
(GST_ELEMENT_GET_CLASS (icydemux), "src"), "src");
g_return_val_if_fail (icydemux->srcpad != NULL, FALSE);
gst_pad_use_fixed_caps (icydemux->srcpad);
if (icydemux->src_caps)
gst_pad_set_caps (icydemux->srcpad, icydemux->src_caps);
GST_DEBUG_OBJECT (icydemux, "Adding src pad with caps %" GST_PTR_FORMAT,
icydemux->src_caps);
gst_pad_set_active (icydemux->srcpad, TRUE);
if (!(gst_element_add_pad (GST_ELEMENT (icydemux), icydemux->srcpad)))
return FALSE;
gst_element_no_more_pads (GST_ELEMENT (icydemux));
}
return TRUE;
}
static void
gst_wavpack_parse_init (GstWavpackParse * parse, GstWavpackParseClass * gclass)
{
GstElementClass *klass = GST_ELEMENT_GET_CLASS (parse);
GstPadTemplate *tmpl;
tmpl = gst_element_class_get_pad_template (klass, "sink");
parse->sinkpad = gst_pad_new_from_template (tmpl, "sink");
gst_pad_set_activate_function (parse->sinkpad,
GST_DEBUG_FUNCPTR (gst_wavpack_parse_sink_activate));
gst_pad_set_activatepull_function (parse->sinkpad,
GST_DEBUG_FUNCPTR (gst_wavpack_parse_sink_activate_pull));
gst_pad_set_event_function (parse->sinkpad,
GST_DEBUG_FUNCPTR (gst_wavpack_parse_sink_event));
gst_pad_set_chain_function (parse->sinkpad,
GST_DEBUG_FUNCPTR (gst_wavpack_parse_chain));
gst_element_add_pad (GST_ELEMENT (parse), parse->sinkpad);
parse->srcpad = NULL;
gst_wavpack_parse_reset (parse);
}
static gboolean
gst_streamid_demux_srcpad_create (GstStreamidDemux * demux, GstPad * pad,
const gchar * stream_id)
{
gchar *padname = NULL;
GstPad *srcpad = NULL;
GstPadTemplate *pad_tmpl = NULL;
padname = g_strdup_printf ("src_%u", demux->nb_srcpads++);
pad_tmpl = gst_static_pad_template_get (&gst_streamid_demux_src_factory);
GST_LOG_OBJECT (demux, "generating a srcpad:%s", padname);
srcpad = gst_pad_new_from_template (pad_tmpl, padname);
gst_object_unref (pad_tmpl);
g_free (padname);
g_return_val_if_fail (srcpad != NULL, FALSE);
demux->active_srcpad = srcpad;
g_hash_table_insert (demux->stream_id_pairs, g_strdup (stream_id),
gst_object_ref (srcpad));
return TRUE;
}
static GstPad *
mpegpsmux_request_new_pad (GstElement * element,
GstPadTemplate * templ, const gchar * name)
{
MpegPsMux *mux = GST_MPEG_PSMUX (element);
GstPad *pad = NULL;
MpegPsPadData *pad_data = NULL;
pad = gst_pad_new_from_template (templ, name);
pad_data = (MpegPsPadData *) gst_collect_pads_add_pad (mux->collect, pad,
sizeof (MpegPsPadData));
if (pad_data == NULL)
goto pad_failure;
pad_data->last_ts = GST_CLOCK_TIME_NONE;
pad_data->codec_data = NULL;
pad_data->prepare_func = NULL;
if (G_UNLIKELY (!gst_element_add_pad (element, pad)))
goto could_not_add;
return pad;
could_not_add:
GST_ELEMENT_ERROR (element, STREAM, FAILED,
("Internal data stream error."), ("Could not add pad to element"));
gst_collect_pads_remove_pad (mux->collect, pad);
gst_object_unref (pad);
return NULL;
pad_failure:
GST_ELEMENT_ERROR (element, STREAM, FAILED,
("Internal data stream error."), ("Could not add pad to collectpads"));
gst_object_unref (pad);
return NULL;
}
static GstPad *
gst_output_selector_request_new_pad (GstElement * element,
GstPadTemplate * templ, const gchar * name, const GstCaps * caps)
{
gchar *padname;
GstPad *srcpad;
GstOutputSelector *osel;
osel = GST_OUTPUT_SELECTOR (element);
GST_DEBUG_OBJECT (osel, "requesting pad");
GST_OBJECT_LOCK (osel);
padname = g_strdup_printf ("src_%u", osel->nb_srcpads++);
srcpad = gst_pad_new_from_template (templ, padname);
GST_OBJECT_UNLOCK (osel);
gst_pad_set_active (srcpad, TRUE);
/* Forward sticky events to the new srcpad */
gst_pad_sticky_events_foreach (osel->sinkpad, forward_sticky_events, srcpad);
gst_element_add_pad (GST_ELEMENT (osel), srcpad);
/* Set the first requested src pad as active by default */
GST_OBJECT_LOCK (osel);
if (osel->active_srcpad == NULL) {
osel->active_srcpad = srcpad;
GST_OBJECT_UNLOCK (osel);
g_object_notify (G_OBJECT (osel), "active-pad");
} else {
GST_OBJECT_UNLOCK (osel);
}
g_free (padname);
return srcpad;
}
static GstPad *
gst_aggregator_request_new_pad (GstElement * element, GstPadTemplate * templ,
const gchar * unused, const GstCaps * caps)
{
GstAggregator *aggregator = GST_AGGREGATOR (element);
gchar *name;
GstPad *newpad;
gint padcount;
if (templ->direction != GST_PAD_SINK)
return NULL;
/* create new pad */
padcount = g_atomic_int_add (&aggregator->padcount, 1);
name = g_strdup_printf ("sink_%u", padcount);
newpad = gst_pad_new_from_template (templ, name);
g_free (name);
gst_collect_pads_add_pad (aggregator->collect, newpad,
sizeof (GstCollectData), NULL, TRUE);
/* takes ownership of the pad */
if (!gst_element_add_pad (GST_ELEMENT (aggregator), newpad))
goto could_not_add;
GST_DEBUG_OBJECT (aggregator, "added new pad %s", GST_OBJECT_NAME (newpad));
return newpad;
/* errors */
could_not_add:
{
GST_DEBUG_OBJECT (aggregator, "could not add pad");
gst_collect_pads_remove_pad (aggregator->collect, newpad);
gst_object_unref (newpad);
return NULL;
}
}
static void
gst_aggregator_init (GstAggregator * self, GstAggregatorClass * klass)
{
GstPadTemplate *pad_template;
GstAggregatorPrivate *priv;
g_return_if_fail (klass->aggregate != NULL);
self->priv =
G_TYPE_INSTANCE_GET_PRIVATE (self, GST_TYPE_AGGREGATOR,
GstAggregatorPrivate);
priv = self->priv;
pad_template =
gst_element_class_get_pad_template (GST_ELEMENT_CLASS (klass), "src");
g_return_if_fail (pad_template != NULL);
priv->padcount = -1;
priv->tags_changed = FALSE;
_reset_flow_values (self);
priv->mcontext = g_main_context_new ();
self->srcpad = gst_pad_new_from_template (pad_template, "src");
gst_pad_set_event_function (self->srcpad,
GST_DEBUG_FUNCPTR ((GstPadEventFunction) src_event_func));
gst_pad_set_query_function (self->srcpad,
GST_DEBUG_FUNCPTR ((GstPadQueryFunction) src_query_func));
gst_pad_set_activatemode_function (self->srcpad,
GST_DEBUG_FUNCPTR ((GstPadActivateModeFunction) src_activate_mode));
gst_element_add_pad (GST_ELEMENT (self), self->srcpad);
g_mutex_init (&self->priv->mcontext_lock);
}