Esempio n. 1
0
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;
}
Esempio n. 2
0
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);
}
Esempio n. 3
0
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);
}
Esempio n. 4
0
/* 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;
  }
}
Esempio n. 5
0
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;
}
Esempio n. 6
0
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;
}
Esempio n. 7
0
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);
}
Esempio n. 8
0
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;
  }
}
Esempio n. 11
0
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);
}
Esempio n. 12
0
/**
 * 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));
}
Esempio n. 13
0
/* 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;
  }
}
Esempio n. 14
0
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);
}
Esempio n. 16
0
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;
}
Esempio n. 17
0
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);
}
Esempio n. 18
0
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? */
}
Esempio n. 19
0
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));
}
Esempio n. 21
0
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);
}
Esempio n. 22
0
/**
 * 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);
}
Esempio n. 23
0
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;
}
Esempio n. 24
0
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;
}
Esempio n. 25
0
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;
}
Esempio n. 27
0
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;
  }
}
Esempio n. 30
0
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);
}