static void
gst_wrapper_camera_bin_src_init (GstWrapperCameraBinSrc * self,
GstWrapperCameraBinSrcClass * klass)
{
self->vfsrc =
gst_ghost_pad_new_no_target (GST_BASE_CAMERA_SRC_VIEWFINDER_PAD_NAME,
GST_PAD_SRC);
gst_element_add_pad (GST_ELEMENT (self), self->vfsrc);
self->imgsrc =
gst_ghost_pad_new_no_target (GST_BASE_CAMERA_SRC_IMAGE_PAD_NAME,
GST_PAD_SRC);
gst_element_add_pad (GST_ELEMENT (self), self->imgsrc);
self->vidsrc =
gst_ghost_pad_new_no_target (GST_BASE_CAMERA_SRC_VIDEO_PAD_NAME,
GST_PAD_SRC);
gst_element_add_pad (GST_ELEMENT (self), self->vidsrc);
self->srcpad_event_func = GST_PAD_EVENTFUNC (self->vfsrc);
gst_pad_set_event_function (self->imgsrc, gst_wrapper_camera_bin_src_event);
gst_pad_set_event_function (self->vidsrc, gst_wrapper_camera_bin_src_event);
gst_pad_set_event_function (self->vfsrc, gst_wrapper_camera_bin_src_event);
/* TODO where are variables reset? */
self->image_capture_count = 0;
self->video_rec_status = GST_VIDEO_RECORDING_STATUS_DONE;
self->video_renegotiate = FALSE;
self->image_renegotiate = FALSE;
self->mode = GST_BASE_CAMERA_SRC_CAST (self)->mode;
}
static gboolean gst_a2dp_sink_init_ghost_pad(GstA2dpSink *self)
{
GstPad *capsfilter_pad;
/* we search for the capsfilter sinkpad */
capsfilter_pad = gst_element_get_static_pad(self->capsfilter, "sink");
/* now we add a ghostpad */
self->ghostpad = GST_GHOST_PAD(gst_ghost_pad_new("sink",
capsfilter_pad));
g_object_unref(capsfilter_pad);
/* the getcaps of our ghostpad must reflect the device caps */
gst_pad_set_getcaps_function(GST_PAD(self->ghostpad),
gst_a2dp_sink_get_caps);
self->ghostpad_setcapsfunc = GST_PAD_SETCAPSFUNC(self->ghostpad);
gst_pad_set_setcaps_function(GST_PAD(self->ghostpad),
GST_DEBUG_FUNCPTR(gst_a2dp_sink_set_caps));
/* we need to handle events on our own and we also need the eventfunc
* of the ghostpad for forwarding calls */
self->ghostpad_eventfunc = GST_PAD_EVENTFUNC(GST_PAD(self->ghostpad));
gst_pad_set_event_function(GST_PAD(self->ghostpad),
gst_a2dp_sink_handle_event);
if (!gst_element_add_pad(GST_ELEMENT(self), GST_PAD(self->ghostpad)))
GST_ERROR_OBJECT(self, "failed to add ghostpad");
return TRUE;
}
void
kms_utils_set_pad_event_function_full (GstPad * pad, GstPadEventFunction event,
gpointer user_data, GDestroyNotify notify, gboolean chain_callbacks)
{
GstPadEventFunction prev_func;
KmsEventData *data;
/* Create new data */
data = g_slice_new0 (KmsEventData);
data->user_func = event;
data->user_data = user_data;
data->user_notify = notify;
if (!chain_callbacks) {
goto set_func;
}
prev_func = GST_PAD_EVENTFUNC (pad);
if (prev_func != kms_event_function) {
/* Keep first data to chain to it */
KmsEventData *first;
first = g_slice_new0 (KmsEventData);
first->user_func = GST_PAD_EVENTFUNC (pad);
first->user_data = pad->eventdata;
first->user_notify = pad->eventnotify;
data->next = first;
} else {
/* Point to previous data to be chained */
data->next = pad->eventdata;
}
/* Do not destroy previous data when set_event is called */
pad->eventnotify = NULL;
pad->eventdata = NULL;
set_func:
gst_pad_set_event_function_full (pad, kms_event_function, data,
kms_event_data_destroy);
}
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_frei0r_mixer_init (GstFrei0rMixer * self, GstFrei0rMixerClass * klass)
{
self->property_cache =
gst_frei0r_property_cache_init (klass->properties, klass->n_properties);
gst_video_info_init (&self->info);
self->collect = gst_collect_pads_new ();
gst_collect_pads_set_function (self->collect,
(GstCollectPadsFunction) gst_frei0r_mixer_collected, self);
gst_collect_pads_set_event_function (self->collect,
(GstCollectPadsEventFunction) gst_frei0r_mixer_sink_event, self);
gst_collect_pads_set_query_function (self->collect,
(GstCollectPadsQueryFunction) gst_frei0r_mixer_sink_query, self);
self->src =
gst_pad_new_from_template (gst_element_class_get_pad_template
(GST_ELEMENT_CLASS (klass), "src"), "src");
gst_pad_set_query_function (self->src,
GST_DEBUG_FUNCPTR (gst_frei0r_mixer_src_query));
gst_pad_set_event_function (self->src,
GST_DEBUG_FUNCPTR (gst_frei0r_mixer_src_event));
gst_element_add_pad (GST_ELEMENT_CAST (self), self->src);
self->sink0 =
gst_pad_new_from_template (gst_element_class_get_pad_template
(GST_ELEMENT_CLASS (klass), "sink_0"), "sink_0");
gst_collect_pads_add_pad (self->collect, self->sink0,
sizeof (GstCollectData), NULL, TRUE);
self->collect_event = (GstPadEventFunction) GST_PAD_EVENTFUNC (self->sink0);
gst_element_add_pad (GST_ELEMENT_CAST (self), self->sink0);
self->sink1 =
gst_pad_new_from_template (gst_element_class_get_pad_template
(GST_ELEMENT_CLASS (klass), "sink_1"), "sink_1");
gst_collect_pads_add_pad (self->collect, self->sink1,
sizeof (GstCollectData), NULL, TRUE);
gst_element_add_pad (GST_ELEMENT_CAST (self), self->sink1);
if (klass->info->plugin_type == F0R_PLUGIN_TYPE_MIXER3) {
self->sink2 =
gst_pad_new_from_template (gst_element_class_get_pad_template
(GST_ELEMENT_CLASS (klass), "sink_2"), "sink_2");
gst_collect_pads_add_pad (self->collect, self->sink2,
sizeof (GstCollectData), NULL, TRUE);
gst_element_add_pad (GST_ELEMENT_CAST (self), self->sink2);
}
}
static void
gst_aspect_ratio_crop_init (GstAspectRatioCrop * aspect_ratio_crop)
{
GstPad *link_pad;
GstPad *src_pad;
GST_DEBUG_CATEGORY_INIT (aspect_ratio_crop_debug, "aspectratiocrop", 0,
"aspectratiocrop");
aspect_ratio_crop->ar_num = 0;
aspect_ratio_crop->ar_denom = 1;
g_mutex_init (&aspect_ratio_crop->crop_lock);
/* add the transform element */
aspect_ratio_crop->videocrop = gst_element_factory_make ("videocrop", NULL);
gst_bin_add (GST_BIN (aspect_ratio_crop), aspect_ratio_crop->videocrop);
/* create ghost pad src */
link_pad =
gst_element_get_static_pad (GST_ELEMENT (aspect_ratio_crop->videocrop),
"src");
src_pad = gst_ghost_pad_new ("src", link_pad);
gst_pad_set_query_function (src_pad,
GST_DEBUG_FUNCPTR (gst_aspect_ratio_crop_src_query));
gst_element_add_pad (GST_ELEMENT (aspect_ratio_crop), src_pad);
gst_object_unref (link_pad);
/* create ghost pad sink */
link_pad =
gst_element_get_static_pad (GST_ELEMENT (aspect_ratio_crop->videocrop),
"sink");
aspect_ratio_crop->sink = gst_ghost_pad_new ("sink", link_pad);
gst_element_add_pad (GST_ELEMENT (aspect_ratio_crop),
aspect_ratio_crop->sink);
gst_object_unref (link_pad);
aspect_ratio_crop->sinkpad_old_eventfunc =
GST_PAD_EVENTFUNC (aspect_ratio_crop->sink);
gst_pad_set_event_function (aspect_ratio_crop->sink,
GST_DEBUG_FUNCPTR (gst_aspect_ratio_crop_sink_event));
}
static void
gst_vp8_enc_init (GstVP8Enc * gst_vp8_enc, GstVP8EncClass * klass)
{
GST_DEBUG_OBJECT (gst_vp8_enc, "init");
gst_vp8_enc->bitrate = DEFAULT_BITRATE;
gst_vp8_enc->mode = DEFAULT_MODE;
gst_vp8_enc->quality = DEFAULT_QUALITY;
gst_vp8_enc->error_resilient = DEFAULT_ERROR_RESILIENT;
gst_vp8_enc->max_latency = DEFAULT_MAX_LATENCY;
gst_vp8_enc->max_keyframe_distance = DEFAULT_MAX_KEYFRAME_DISTANCE;
gst_vp8_enc->multipass_mode = DEFAULT_MULTIPASS_MODE;
gst_vp8_enc->multipass_cache_file = DEFAULT_MULTIPASS_CACHE_FILE;
gst_vp8_enc->auto_alt_ref_frames = DEFAULT_AUTO_ALT_REF_FRAMES;
/* FIXME: Add sink/src event vmethods */
gst_vp8_enc->base_sink_event_func =
GST_PAD_EVENTFUNC (GST_BASE_VIDEO_CODEC_SINK_PAD (gst_vp8_enc));
gst_pad_set_event_function (GST_BASE_VIDEO_CODEC_SINK_PAD (gst_vp8_enc),
gst_vp8_enc_sink_event);
}
static void
rsn_dec_init (RsnDec * self, RsnDecClass * klass)
{
GstPadTemplate *templ;
templ =
gst_element_class_get_pad_template (GST_ELEMENT_CLASS (klass), "sink");
g_assert (templ != NULL);
self->sinkpad =
GST_GHOST_PAD_CAST (gst_ghost_pad_new_no_target_from_template ("sink",
templ));
self->sink_event_func = GST_PAD_EVENTFUNC (self->sinkpad);
gst_pad_set_event_function (GST_PAD_CAST (self->sinkpad),
GST_DEBUG_FUNCPTR (rsn_dec_sink_event));
templ = gst_element_class_get_pad_template (GST_ELEMENT_CLASS (klass), "src");
g_assert (templ != NULL);
self->srcpad =
GST_GHOST_PAD_CAST (gst_ghost_pad_new_no_target_from_template ("src",
templ));
gst_element_add_pad (GST_ELEMENT (self), GST_PAD_CAST (self->sinkpad));
gst_element_add_pad (GST_ELEMENT (self), GST_PAD_CAST (self->srcpad));
}
static GstPad *
gst_interleave_request_new_pad (GstElement * element, GstPadTemplate * templ,
const gchar * req_name)
{
GstInterleave *self = GST_INTERLEAVE (element);
GstPad *new_pad;
gchar *pad_name;
gint channels, padnumber;
GValue val = { 0, };
if (templ->direction != GST_PAD_SINK)
goto not_sink_pad;
channels = g_atomic_int_exchange_and_add (&self->channels, 1);
padnumber = g_atomic_int_exchange_and_add (&self->padcounter, 1);
pad_name = g_strdup_printf ("sink%d", padnumber);
new_pad = GST_PAD_CAST (g_object_new (GST_TYPE_INTERLEAVE_PAD,
"name", pad_name, "direction", templ->direction,
"template", templ, NULL));
GST_INTERLEAVE_PAD_CAST (new_pad)->channel = channels;
GST_DEBUG_OBJECT (self, "requested new pad %s", pad_name);
g_free (pad_name);
gst_pad_set_setcaps_function (new_pad,
GST_DEBUG_FUNCPTR (gst_interleave_sink_setcaps));
gst_pad_set_getcaps_function (new_pad,
GST_DEBUG_FUNCPTR (gst_interleave_sink_getcaps));
gst_collect_pads_add_pad (self->collect, new_pad, sizeof (GstCollectData));
/* 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 */
self->collect_event = (GstPadEventFunction) GST_PAD_EVENTFUNC (new_pad);
gst_pad_set_event_function (new_pad,
GST_DEBUG_FUNCPTR (gst_interleave_sink_event));
if (!gst_element_add_pad (element, new_pad))
goto could_not_add;
g_value_init (&val, GST_TYPE_AUDIO_CHANNEL_POSITION);
g_value_set_enum (&val, GST_AUDIO_CHANNEL_POSITION_NONE);
self->input_channel_positions =
g_value_array_append (self->input_channel_positions, &val);
g_value_unset (&val);
/* Update the src caps if we already have them */
if (self->sinkcaps) {
GstCaps *srccaps;
GstStructure *s;
/* Take lock to make sure processing finishes first */
GST_OBJECT_LOCK (self->collect);
srccaps = gst_caps_copy (self->sinkcaps);
s = gst_caps_get_structure (srccaps, 0);
gst_structure_set (s, "channels", G_TYPE_INT, self->channels, NULL);
gst_interleave_set_channel_positions (self, s);
gst_pad_set_caps (self->src, srccaps);
gst_caps_unref (srccaps);
GST_OBJECT_UNLOCK (self->collect);
}
return new_pad;
/* errors */
not_sink_pad:
{
g_warning ("interleave: requested new pad that is not a SINK pad\n");
return NULL;
}
could_not_add:
{
GST_DEBUG_OBJECT (self, "could not add pad %s", GST_PAD_NAME (new_pad));
gst_collect_pads_remove_pad (self->collect, new_pad);
gst_object_unref (new_pad);
return NULL;
}
}
static GstPad *
gst_ffmpegmux_request_new_pad (GstElement * element,
GstPadTemplate * templ, const gchar * name)
{
GstFFMpegMux *ffmpegmux = (GstFFMpegMux *) element;
GstElementClass *klass = GST_ELEMENT_GET_CLASS (element);
GstFFMpegMuxPad *collect_pad;
gchar *padname;
GstPad *pad;
AVStream *st;
enum CodecType type;
gint bitrate = 0, framesize = 0;
g_return_val_if_fail (templ != NULL, NULL);
g_return_val_if_fail (templ->direction == GST_PAD_SINK, NULL);
g_return_val_if_fail (ffmpegmux->opened == FALSE, NULL);
/* figure out a name that *we* like */
if (templ == gst_element_class_get_pad_template (klass, "video_%d")) {
padname = g_strdup_printf ("video_%d", ffmpegmux->videopads++);
type = CODEC_TYPE_VIDEO;
bitrate = 64 * 1024;
framesize = 1152;
} else if (templ == gst_element_class_get_pad_template (klass, "audio_%d")) {
padname = g_strdup_printf ("audio_%d", ffmpegmux->audiopads++);
type = CODEC_TYPE_AUDIO;
bitrate = 285 * 1024;
} else {
g_warning ("ffmux: unknown pad template!");
return NULL;
}
/* create pad */
pad = gst_pad_new_from_template (templ, padname);
collect_pad = (GstFFMpegMuxPad *)
gst_collect_pads_add_pad (ffmpegmux->collect, pad,
sizeof (GstFFMpegMuxPad));
collect_pad->padnum = ffmpegmux->context->nb_streams;
/* small hack to put our own event pad function and chain up to collect pad */
ffmpegmux->event_function = GST_PAD_EVENTFUNC (pad);
gst_pad_set_event_function (pad,
GST_DEBUG_FUNCPTR (gst_ffmpegmux_sink_event));
gst_pad_set_setcaps_function (pad, GST_DEBUG_FUNCPTR (gst_ffmpegmux_setcaps));
gst_element_add_pad (element, pad);
/* AVStream needs to be created */
st = av_new_stream (ffmpegmux->context, collect_pad->padnum);
st->codec->codec_type = type;
st->codec->codec_id = CODEC_ID_NONE; /* this is a check afterwards */
st->stream_copy = 1; /* we're not the actual encoder */
st->codec->bit_rate = bitrate;
st->codec->frame_size = framesize;
/* we fill in codec during capsnego */
/* we love debug output (c) (tm) (r) */
GST_DEBUG ("Created %s pad for ffmux_%s element",
padname, ((GstFFMpegMuxClass *) klass)->in_plugin->name);
g_free (padname);
return pad;
}
static void
gst_camera_bin_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstCameraBin *camera = GST_CAMERA_BIN_CAST (object);
switch (prop_id) {
case PROP_MODE:
gst_camera_bin_change_mode (camera, g_value_get_enum (value));
break;
case PROP_LOCATION:
gst_camera_bin_set_location (camera, g_value_get_string (value));
break;
case PROP_CAMERA_SRC:
gst_camera_bin_set_camera_src (camera, g_value_get_object (value));
break;
case PROP_IMAGE_CAPTURE_CAPS:{
GstPad *pad = NULL;
if (camera->src)
pad =
gst_element_get_static_pad (camera->src,
GST_BASE_CAMERA_SRC_IMAGE_PAD_NAME);
GST_DEBUG_OBJECT (camera,
"Setting image capture caps to %" GST_PTR_FORMAT,
gst_value_get_caps (value));
/* set the capsfilter caps and notify the src to renegotiate */
g_object_set (camera->imagebin_capsfilter, "caps",
gst_value_get_caps (value), NULL);
if (pad) {
GST_DEBUG_OBJECT (camera, "Pushing renegotiate on %s",
GST_PAD_NAME (pad));
GST_PAD_EVENTFUNC (pad) (pad, gst_camera_bin_new_event_renegotiate ());
gst_object_unref (pad);
}
}
break;
case PROP_VIDEO_CAPTURE_CAPS:{
GstPad *pad = NULL;
if (camera->src)
pad =
gst_element_get_static_pad (camera->src,
GST_BASE_CAMERA_SRC_VIDEO_PAD_NAME);
GST_DEBUG_OBJECT (camera,
"Setting video capture caps to %" GST_PTR_FORMAT,
gst_value_get_caps (value));
/* set the capsfilter caps and notify the src to renegotiate */
g_object_set (camera->videobin_capsfilter, "caps",
gst_value_get_caps (value), NULL);
if (pad) {
GST_DEBUG_OBJECT (camera, "Pushing renegotiate on %s",
GST_PAD_NAME (pad));
GST_PAD_EVENTFUNC (pad) (pad, gst_camera_bin_new_event_renegotiate ());
gst_object_unref (pad);
}
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
